/* =================================================================
 * app.css - Global application styles
 *
 * Table of Contents:
 *   1. CSS Custom Properties (Design Tokens)
 *   2. Reset / Base Styles
 *   3. Typography
 *   4. Layout Utilities
 *   5. Header / Navigation
 *   6. Footer
 *   7. Buttons
 *   8. Form Elements
 *   9. Cards / Lists
 *  10. Badges / Status
 *  11. Alerts
 *  12. Modals
 *  13. Toast Notifications
 *  14. Drawer
 *  15. Page Container
 *   0. Web Fonts (Pretendard)
 *  16. Empty States
 *  17. Image Protection
 *  18. Accessibility
 *  19. Responsive Breakpoints
 *  25. Exam Card Grid (iOS-style)
 *  26. Class Selector (Header Dropdown)
 * ================================================================= */

/* -----------------------------------------------------------------
 * 0. Web Fonts (Pretendard)
 * ----------------------------------------------------------------- */
@font-face {
    font-family: 'Pretendard';
    font-weight: 400;
    font-style: normal;
    font-display: swap;
    src: url('../fonts/Pretendard-Regular.ttf') format('truetype');
}
@font-face {
    font-family: 'Pretendard';
    font-weight: 500;
    font-style: normal;
    font-display: swap;
    src: url('../fonts/Pretendard-Medium.ttf') format('truetype');
}
@font-face {
    font-family: 'Pretendard';
    font-weight: 600;
    font-style: normal;
    font-display: swap;
    src: url('../fonts/Pretendard-SemiBold.ttf') format('truetype');
}
@font-face {
    font-family: 'Pretendard';
    font-weight: 700;
    font-style: normal;
    font-display: swap;
    src: url('../fonts/Pretendard-Bold.ttf') format('truetype');
}
@font-face {
    font-family: 'Pretendard';
    font-weight: 800;
    font-style: normal;
    font-display: swap;
    src: url('../fonts/Pretendard-ExtraBold.ttf') format('truetype');
}

/* -----------------------------------------------------------------
 * 1. CSS Custom Properties (Design Tokens)
 * ----------------------------------------------------------------- */
:root {
    /* Brand colors */
    --color-primary: #0F91DB;
    --color-primary-hover: #0d7fc4;
    --color-primary-light: #e6f4fc;
    --color-accent: #f59e0b;
    --color-accent-hover: #d97706;

    /* Semantic colors */
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-success: #22c55e;
    --color-success-hover: #16a34a;
    --color-warning: #f59e0b;
    --color-warning-hover: #d97706;
    --color-info: #3b82f6;

    /* Light background variants for badges/alerts */
    --color-success-light: #ecfdf5;
    --color-success-dark: #059669;
    --color-warning-light: #fffbeb;
    --color-warning-dark: #b45309;
    --color-danger-light: #fef2f2;
    --color-info-light: #eff6ff;

    /* Neutrals */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;
    --color-border-hover: #cbd5e1;

    /* Surfaces */
    --color-surface: #ffffff;
    --color-surface-elevated: #ffffff;
    --color-overlay: rgba(0, 0, 0, 0.5);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Borders */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Sizing */
    --header-height: 110px; /* tier1(60px) + tier2(~50px) */
    --footer-height: 56px;
    --max-width: 1200px;

    /* Transitions */
    --transition: 0.2s ease;
    --transition-fast: 0.15s ease;
    --transition-slow: 0.4s ease;

    /* Font */
    --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

    /* Z-index layers */
    --z-header: 100;
    --z-drawer: 200;
    --z-modal: 300;
    --z-toast: 400;
}

/* -----------------------------------------------------------------
 * 2. Reset / Base Styles
 * ----------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
video {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-primary-hover);
}

ul, ol {
    list-style: none;
}

/* -----------------------------------------------------------------
 * 3. Typography
 * ----------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

/* -----------------------------------------------------------------
 * 4. Layout Utilities
 * ----------------------------------------------------------------- */
.page-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

.hidden { display: none !important; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* -----------------------------------------------------------------
 * 5. Header / Navigation (1줄 통합 — 좌:로고/종목/구독, 중:학습메뉴, 우:다운로드/유저)
 * ----------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: var(--z-header); background: #fff; }

/* 1줄 헤더 바 (reference: max-width 1180, height 64, padding 16 8)
   height 고정으로 자식 wrap 시에도 헤더 박스 높이 유지 (sticky 가림 방지).
   ※ overflow: visible 유지 — class-selector-popup 등 desktop 절대배치 자식 표시 보장. */
.header-bar { height: 64px; border-bottom: 1px solid #E4E5ED; background: #fff; }
.header-bar-inner {
    max-width: 1180px; margin: 0 auto; height: 100%;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    padding: 16px 8px;
    flex-wrap: nowrap;
    min-width: 0;
}

/* 좌/중/우 3 그룹 — flex 로 균형 배치
   min-width:0 으로 자식 텍스트(class-selector-name 등) ellipsis 정상 동작 보장. */
.hb-left {
    display: flex; align-items: center; gap: 4px;
    flex: 0 1 auto;
    flex-wrap: nowrap;
    min-width: 0;
}
.hb-center {
    display: flex; align-items: center; justify-content: center;
    flex: 1 1 auto;
    min-width: 0;
}
.hb-right {
    display: flex; align-items: center; gap: 28px;
    flex: 0 0 auto;
    flex-wrap: nowrap;
    margin-left: auto;
}

/* 로고 (reference: 163 × 32, 모바일에서 단계적 축소) */
.header-logo { display: inline-flex; align-items: center; flex-shrink: 0; text-decoration: none; min-width: 0; }
.header-logo img {
    height: clamp(22px, 4vw, 32px);
    width: auto;
    max-width: clamp(110px, 18vw, 163px);
    object-fit: contain;
    display: block;
}
.header-logo:hover { opacity: 0.85; }

/* 다운로드 / 인증 영역 공용 */
.header-aux-divider { width: 1px; height: 10px; background: #E4E5ED; }
.header-download { display: inline-flex; align-items: center; }
.header-download-label { font-size: 12px; font-weight: 500; color: #7A7C83; margin-right: 8px; white-space: nowrap; }
.header-download-btn { display: inline-flex; align-items: center; justify-content: center; transition: opacity 0.15s; }
.header-download-btn:hover { opacity: 0.85; }
.header-download-btn svg { display: block; width: 28px; height: 28px; }
.header-download-btn--apple { margin-right: 4px; }
.header-auth-link { font-size: 14px; font-weight: 500; color: #7A7C83; text-decoration: none; transition: color 0.15s; white-space: nowrap; }
.header-auth-link:hover { color: #18191B; }

/* 사용자 영역 (avatar 24 + 이름 + 님 + arrow_down 8) */
.header-user { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: inherit; white-space: nowrap; }
.header-user:hover .header-user-name { color: #0093E8; }
.header-user-avatar { display: inline-flex; width: 24px; height: 24px; border-radius: 9999px; overflow: hidden; flex-shrink: 0; background: #E4E5ED; }
.header-user-avatar svg { display: block; width: 24px; height: 24px; }
.header-user-name {
    font-size: clamp(12px, 1.4vw, 14px);
    color: #18191B; font-weight: 600;
    max-width: clamp(60px, 14vw, 140px);
    overflow: hidden; text-overflow: ellipsis;
    transition: color 0.15s;
}
.header-user-suffix { font-size: clamp(12px, 1.4vw, 14px); color: #18191B; font-weight: 500; }
.header-user-caret { display: inline-flex; align-items: center; justify-content: center; width: 8px; height: 8px; margin-left: 2px; }

/* 종목 선택 트리거 (종목명 클릭 → 팝업) */
.class-selector { position: relative; display: flex; align-items: center; }
.class-selector-trigger {
    display: inline-flex; align-items: center; gap: 6px;
    min-height: 36px;
    padding: 6px 8px;
    background: transparent;
    border: 0;
    cursor: pointer;
    white-space: nowrap;
    border-radius: 6px;
    transition: background-color 0.15s, opacity 0.15s;
    font-family: inherit;
    color: inherit;
}
.class-selector-trigger:hover { background: #F5F6F8; }
.class-selector-name {
    display: block;
    max-width: clamp(80px, 22vw, 240px);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: clamp(13px, 1.5vw, 16px);
    font-weight: 700;
    color: #18191B;
    line-height: 1.2;
}
.class-selector-caret {
    display: inline-flex; align-items: center; justify-content: center;
    color: #7A7C83;
    transition: transform 0.15s;
}
.class-selector.open .class-selector-caret { transform: rotate(180deg); }

/* 구독 상태 배지 */
.class-sub-badge {
    display: inline-flex; align-items: center; justify-content: center;
    height: 24px; padding: 0 10px;
    background: #F3F9FF;
    color: #0093E8;
    font-size: 12px; font-weight: 500;
    border-radius: 4px;
    line-height: 1;
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    transition: opacity 0.15s, background-color 0.15s;
}
.class-sub-badge:hover { opacity: 0.84; }
.class-sub-badge.is-active { background: #E6F7EE; color: #138A4F; }
.class-sub-badge.is-pending { background: #FFF7E6; color: #C2820A; }
.class-sub-badge.is-inactive { background: #F3F9FF; color: #0093E8; }

/* 학습 메뉴 (중앙, pill 형식) */
.main-nav.learning-nav { display: flex; align-items: center; }
.main-nav.learning-nav .nav-list { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.main-nav.learning-nav .nav-link {
    display: inline-flex; align-items: center;
    height: 40px;
    padding: 10px 20px;
    color: #3E4045;
    font-size: 16px; font-weight: 500;
    text-decoration: none;
    border: 1.5px solid transparent;
    border-radius: 30px;
    transition: color 0.15s, border-color 0.15s, background-color 0.15s;
    white-space: nowrap;
}
.main-nav.learning-nav .nav-link:hover { color: #18191B; background-color: #F5F6F8; }
.main-nav.learning-nav .nav-link.active {
    color: #18191B;
    font-weight: 700;
    border-color: #18191B;
    background-color: #fff;
}

/* 종목 선택 팝업 (디자인 노드 pCeZh: width 546, padding 32 22, radius 8, shadow) */
.class-selector-popup {
    display: none;
    position: absolute; top: calc(100% + 1px); left: 0;
    width: 600px;
    background: #fff;
    border: 1px solid #E4E5ED;
    border-radius: 10px;
    box-shadow: 0 4px 14px rgba(0,0,0,0.10);
    padding: 36px 26px;
    z-index: calc(var(--z-header) + 10);
}
.class-selector.open .class-selector-popup { display: block; }
.class-selector-popup-title { font-size: 18px; color: #7A7C83; font-weight: 500; margin-bottom: 28px; }
.class-selector-popup-title--link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-primary, #0F91DB);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.15s;
}
.class-selector-popup-title--link:hover { color: var(--color-primary-hover, #007EC4); }
.class-selector-popup-title-arrow { font-size: 14px; }
.class-selector-popup-body { display: flex; flex-direction: column; gap: 18px; }

.class-category { display: flex; flex-direction: column; gap: 10px; }
.class-category-name { font-size: 15px; font-weight: 700; color: #0093E8; line-height: 1.2; }
.class-category-list { display: flex; flex-wrap: wrap; gap: 12px; }
.class-category-item {
    padding: 10px 18px;
    font-size: 15px; font-weight: 600; color: #3E4045;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s, color 0.15s;
}
.class-category-item:hover { background: #F5F6F8; }
.class-category-item.active { background: #F0F1F4; color: #18191B; font-weight: 700; }

/* -----------------------------------------------------------------
 * 6. Footer (디자인 노드 1aRMh / 08Qcb: 높이 200, padding 27 370, gap 20)
 * ----------------------------------------------------------------- */
.site-footer {
    margin-top: auto;
    background: #f8fafc;
    border-top: 1px solid var(--color-border);
    padding: 26px 0 28px;
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 0 var(--space-md);
}
.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px 24px;
    flex-wrap: wrap;
}
.footer-logo {
    display: inline-flex;
    align-items: center;
    line-height: 0;
    transition: opacity var(--transition-fast);
}
.footer-logo img {
    height: 26px;
    width: auto;
    display: block;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}
.footer-logo:hover img,
.footer-logo:focus-visible img {
    opacity: 1;
}
.footer-policies {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.footer-policies a {
    color: var(--color-text-secondary);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    padding: 4px 0;
    transition: color var(--transition-fast);
}
.footer-policies a:hover,
.footer-policies a:focus-visible {
    color: var(--color-text);
}
.footer-policies-sep {
    color: var(--color-border);
    font-size: 12px;
    line-height: 1;
    user-select: none;
}
.footer-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-top: 14px;
    border-top: 1px solid var(--color-border);
}
.footer-info-group {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 2px 0;
    margin: 0;
    line-height: 1.7;
}
.footer-info-item {
    display: inline-flex;
    align-items: baseline;
    gap: 5px;
    min-width: 0;
}
.footer-info-group .footer-info-item:not(:last-child)::after {
    content: '·';
    color: var(--color-border);
    margin: 0 10px;
    font-weight: 400;
    user-select: none;
}
.footer-info-item dt {
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: -0.1px;
}
.footer-info-item dd {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: 13px;
    overflow-wrap: anywhere;
}
.copyright {
    margin: 6px 0 0;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.1px;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* Hide footer on exam pages for maximum content area */
.page-exam .site-footer {
    display: none;
}

/* -----------------------------------------------------------------
 * Consult FAB (카카오톡 상담) — home / mypage / mypage/support 공용
 * ----------------------------------------------------------------- */
.consult-fab {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 950;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 14px 10px 12px;
    background: #FEE500;
    color: #181600;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.18);
    transition: transform 0.15s, box-shadow 0.15s;
}
.consult-fab:hover,
.consult-fab:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.22);
    color: #181600;
    text-decoration: none;
    outline: none;
}
.consult-fab-icon {
    flex-shrink: 0;
}
.consult-fab-label {
    letter-spacing: -0.2px;
}
@media (max-width: 640px) {
    .consult-fab {
        right: 14px;
        bottom: 14px;
        padding: 8px 12px 8px 10px;
        font-size: 12px;
    }
    .consult-fab-icon {
        width: 20px;
        height: 20px;
    }
}

/* -----------------------------------------------------------------
 * 7. Buttons
 * ----------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    line-height: 1.4;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
    outline: none;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:active:not(:disabled) {
    transform: scale(0.97);
}

.btn-primary:focus-visible {
    outline-color: var(--color-primary);
}

.btn-outline:focus-visible {
    outline-color: var(--color-primary);
}

.btn-accent:focus-visible {
    outline-color: var(--color-accent);
}

.btn-danger:focus-visible {
    outline-color: var(--color-danger);
}

.btn-nav:focus-visible {
    outline-color: var(--color-primary);
}

/* Primary */
.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: #ffffff;
}

.btn-primary.active {
    background-color: var(--color-primary-hover);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* Outline */
.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
    color: var(--color-text);
}

.btn-outline.active {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Accent */
.btn-accent {
    background-color: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
}

.btn-accent:hover {
    background-color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #ffffff;
}

/* Danger */
.btn-danger {
    background-color: var(--color-danger);
    color: #ffffff;
    border-color: var(--color-danger);
}

.btn-danger:hover {
    background-color: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
    color: #ffffff;
}

/* Navigation */
.btn-nav {
    background-color: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
    min-width: 64px;
}

.btn-nav:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
}

/* Sizes */
.btn-sm {
    padding: 4px 10px;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

/* Close button */
.btn-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.btn-close:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

/* -----------------------------------------------------------------
 * 8. Form Elements
 * ----------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
select,
textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.9375rem;
    font-family: inherit;
    line-height: 1.4;
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.form-input:focus,
input:focus,
select:focus,
textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-input::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
    opacity: 0.75;
}

select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

/* -----------------------------------------------------------------
 * 9. Cards / Lists
 * ----------------------------------------------------------------- */
.exam-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background-color: var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.exam-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color var(--transition);
}

.exam-list-item:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.exam-item-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.exam-item-title {
    font-weight: 500;
}

.exam-item-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.exam-item-score {
    font-weight: 600;
    color: var(--color-primary);
}

/* -----------------------------------------------------------------
 * 10. Badges / Status
 * ----------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-free {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.exam-item-status {
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.status-before {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.status-ing {
    background-color: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.status-end {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

/* -----------------------------------------------------------------
 * 11. Alerts
 * ----------------------------------------------------------------- */
.alert {
    padding: var(--space-md);
    border-radius: var(--radius);
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
}

.alert-error {
    background-color: var(--color-danger-light);
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background-color: var(--color-success-light);
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-warning {
    background-color: var(--color-warning-light);
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background-color: var(--color-info-light);
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* -----------------------------------------------------------------
 * 12. Modals
 * ----------------------------------------------------------------- */
.modal {
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-overlay);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    padding: var(--space-md);
}

.modal-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
    animation: modal-enter 0.2s ease;
}

.modal-content h3 {
    margin-bottom: var(--space-md);
    font-size: 1.125rem;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

@keyframes modal-enter {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(8px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes modal-leave {
    from {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
    to {
        opacity: 0;
        transform: scale(0.95) translateY(8px);
    }
}

.modal-closing .modal-content {
    animation: modal-leave 0.15s ease forwards;
}

/* -----------------------------------------------------------------
 * 13. Toast Notifications
 * ----------------------------------------------------------------- */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    pointer-events: none;
}

.toast {
    padding: 12px 24px;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.1);
    pointer-events: auto;
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    max-width: 90vw;
    text-align: center;
    word-break: keep-all;
}

.toast-show {
    opacity: 1;
    transform: translateY(0);
}

.toast-hide {
    opacity: 0;
    transform: translateY(-8px);
}

.toast-info    { background-color: var(--color-info); }
.toast-success { background-color: var(--color-success); }
.toast-error   { background-color: var(--color-danger); }
.toast-warning { background-color: var(--color-warning); color: #1e293b; }

/* -----------------------------------------------------------------
 * 14. Drawer
 * ----------------------------------------------------------------- */
.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 320px;
    max-width: 85vw;
    background: var(--color-surface);
    z-index: var(--z-drawer);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.drawer-open {
    transform: translateX(0);
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
    flex-shrink: 0;
}

/* -----------------------------------------------------------------
 * 15. Page Container
 * ----------------------------------------------------------------- */
.page-header {
    margin-bottom: var(--space-lg);
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

/* -----------------------------------------------------------------
 * 16. Empty States
 * ----------------------------------------------------------------- */
.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    color: var(--color-text-muted);
}

.empty-state-icon {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: var(--space-sm);
    opacity: 0.25;
}

.empty-state-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.empty-state-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.empty-state-action {
    margin-top: var(--space-lg);
}

.exam-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 120px;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* -----------------------------------------------------------------
 * 17. Content & Image Protection
 * ----------------------------------------------------------------- */


/* Image element protection */
.exam-image {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    pointer-events: none;
    max-width: 100%;
    height: auto;
}

/* Image wrapper with shield overlay */
.exam-image-wrapper {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    line-height: 0;
    position: relative;
}

/* Transparent overlay — blocks right-click, long-press, drag on the image */
.exam-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
}

/* Content areas */
.panel-content,
.card-content {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
}

/* All images inside protected areas */
.panel-content img,
.card-content img,
.exam-html-content img {
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
    pointer-events: none;
}

/* Capture Warning Popup */
#capture-warning-popup {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease;
}

#capture-warning-popup.active {
    opacity: 1;
    visibility: visible;
}

.capture-warning-inner {
    background: #ffffff;
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-lg);
    max-width: 380px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-xl);
    animation: modal-enter 0.2s ease;
}

.capture-warning-icon {
    font-size: 2.5rem;
    line-height: 1;
    margin-bottom: var(--space-md);
    color: var(--color-danger);
}

.capture-warning-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.capture-warning-msg {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.capture-warning-btn {
    min-width: 120px;
}

/* Text content areas — prevent drag/selection on text questions */
.exam-text-content,
.exam-html-content,
.card-text {
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-touch-callout: none;
    -webkit-user-drag: none;
    cursor: default;
}

/* All elements inside protected containers — prevent drag */
.page-exam * {
    -webkit-user-drag: none;
}

/* Re-allow form element interaction */
.page-exam input,
.page-exam textarea,
.page-exam select,
.page-exam button {
    -webkit-user-drag: auto;
    cursor: pointer;
}

.page-exam input,
.page-exam textarea {
    cursor: text;
}

/* -----------------------------------------------------------------
 * 18. Accessibility
 * ----------------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* -----------------------------------------------------------------
 * 19. Responsive Breakpoints
 * ----------------------------------------------------------------- */

/* Tablet and below (<= 1024px) */
@media (max-width: 1024px) {
    .header-bar-inner { gap: 12px; padding: 12px 12px; }
    .hb-left { gap: 8px; }
    .hb-right { gap: 12px; }
    .main-nav.learning-nav .nav-list { gap: 0; }
    .main-nav.learning-nav .nav-link { padding: 8px 10px; font-size: 13px; }
    .header-download-label { display: none; }
    .header-download-btn svg { width: 24px; height: 24px; }
    .header-download-btn--apple { margin-right: 4px; }
}

/* Small tablet (<= 900px) — 햄버거 직전, 학습 메뉴 더 축소 */
@media (max-width: 900px) {
    .header-bar-inner { gap: 8px; padding: 10px 10px; }
    .main-nav.learning-nav .nav-link { padding: 6px 8px; font-size: 12px; }
    .hb-right { gap: 8px; }
}

/* Mobile (<= 768px) */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }

    .header-bar { height: 60px; }
    /* 모바일에서도 1줄 강제: inner/left/right 모두 nowrap 유지 */
    .header-bar-inner { flex-wrap: nowrap; }
    .hb-left { flex-wrap: nowrap; min-width: 0; flex-shrink: 1; }
    .hb-right { flex-wrap: nowrap; flex-shrink: 0; }

    /* 모바일: 햄버거 제거 — 학습 메뉴를 header-bar-inner 두 번째 줄에 항상 노출.
       .site-header sticky 라 header 자체가 메뉴 높이만큼 늘어나 페이지 콘텐츠가 자연 여백. */
    .header-bar { height: auto; min-height: 60px; }
    .header-bar-inner { flex-wrap: wrap; min-height: 60px; row-gap: 0; }

    .hb-left { order: 1; }
    .hb-right { order: 2; }

    /* 햄버거 제거 — 학습 메뉴는 두 번째 줄에 항상 노출 */
    .hb-center {
        display: flex;
        flex-basis: 100%;
        order: 10;                       /* 두 번째 줄 전체 폭 */
        background: #fff;
        border-top: 1px solid #E4E5ED;
        padding: 6px 12px;               /* 메뉴 영역 상하 여백 최소화 */
        margin: 0 -10px -1px;            /* header-bar-inner 좌우 padding 보정 + 하단 border 중첩 정리 */
    }
    .main-nav.learning-nav .nav-list {
        flex-wrap: wrap;
        width: 100%;
        gap: 2px;                        /* 2열 메뉴 간격 축소 */
    }
    /* 모바일 메뉴 link: 터치 가능한 최소 hit-area(38px) 유지하면서 컴팩트화 */
    .main-nav.learning-nav .nav-link {
        padding: 6px 10px;
        min-height: 38px;
        height: auto;
    }

    .hb-right { gap: 6px; }
    .header-auth-link { font-size: 12px; }
    .header-user-name { max-width: 80px; font-size: 12px; }
    .header-user-suffix { font-size: 12px; }
    .header-user-caret { display: none; }
    .header-download { display: none; }
    .header-aux-divider { display: none; }
    .header-logo img { height: 26px; max-width: 130px; }

    .class-selector-name {
        max-width: clamp(70px, calc(100vw - 200px), 180px);
        font-size: 13px;
    }

    /* 콘텐츠 안전 마진: 헤더 컴팩트화 회귀 시에도 상단이 가려지지 않도록 */
    #app-main { padding-top: 4px; }
}

/* Small mobile (<= 480px) — 매우 좁음 */
@media (max-width: 480px) {
    .header-bar-inner { gap: 6px; padding: 8px; }
    .header-logo img { height: 22px; max-width: 100px; }
    .header-user-name { max-width: 56px; font-size: 11px; }
    .header-user-suffix { display: none; }
    .class-selector-name { font-size: 12px; max-width: clamp(50px, calc(100vw - 160px), 120px); }
    .class-selector-trigger { padding: 4px 6px; min-height: 30px; }
    .class-sub-badge { font-size: 10px; padding: 2px 6px; height: 20px; }
    .header-user { gap: 4px; }
}

/* Extra-small (<= 360px) — 거의 폴더블/구형 모바일 */
@media (max-width: 360px) {
    .header-bar-inner { gap: 4px; padding: 6px; }
    .header-logo img { height: 20px; max-width: 78px; }
    .header-user-avatar svg { width: 20px; height: 20px; }
    .header-user-avatar { width: 20px; height: 20px; }
    .header-user-name { display: none; }
    .class-selector-name { max-width: clamp(40px, calc(100vw - 150px), 88px); }
    /* 매우 좁은 폭: 구독 배지 숨김(택스트 클릭은 종목 트리거로 가능) */
    .class-sub-badge { display: none; }
}

/* Mobile (<= 768px) — popup/footer/page-container 등 모바일 공통 */
@media (max-width: 768px) {
    .class-selector-popup {
        width: calc(100vw - 32px);
        max-width: 546px;
        left: 16px;
        position: fixed;
        top: 58px;
    }

    .footer-top {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .footer-info {
        gap: 10px;
    }
    .footer-info-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        line-height: 1.5;
    }
    .footer-info-group .footer-info-item:not(:last-child)::after {
        display: none;
    }

    .page-container {
        padding: var(--space-md) var(--space-sm);
    }

    .btn {
        padding: 10px 16px;
        /* Mobile tap target: 44px per WCAG 2.5.5 / iOS HIG */
        min-height: 44px;
    }
    /* 작은 변형(.btn-sm)은 의도된 컴팩트 사이즈이므로 글로벌 min-height 면제 */
    .btn.btn-sm {
        min-height: 0;
    }

    .btn-nav {
        min-width: 56px;
    }

    .modal-content {
        padding: var(--space-md);
    }

    /* 모바일: 굵은 헤딩류 타이틀 사이즈 축소 (굵기/색상은 유지, 사이즈만 1~3px 다운).
       본문/단락은 영향 없음. PC(>=769px)는 기존 디자인 유지. */
    h1 { font-size: 1.375rem; }                            /* 28 → 22 */
    h2 { font-size: 1.1875rem; }                           /* 24 → 19 */
    h3 { font-size: 1.0625rem; }                           /* 20 → 17 */

    .page-title { font-size: 1.1875rem; }                  /* 24 → 19 */
    .login-title { font-size: 1.25rem; }                   /* 24 → 20 */
    .admin-login-title { font-size: 1.0625rem; }           /* 20 → 17 */
    .admin-card-title { font-size: 1rem; }                 /* 18 → 16 */
    .exam-card-group-title { font-size: 1rem; }            /* 18 → 16 */
    .review-entry-modal-content h3 { font-size: 1rem; }    /* 18 → 16 */
    .page-mypage .mp-section-title { font-size: 0.9375rem; } /* 16 → 15 */
}

/* Small mobile (< 480px) */
@media (max-width: 479px) {
    .exam-item-info {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }
}

/* -----------------------------------------------------------------
 * 20. Login Page
 * ----------------------------------------------------------------- */
.page-login #app-main {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height));
}

.login-container {
    width: 100%;
    max-width: 480px;
    padding: var(--space-md);
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.login-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    font-weight: 700;
}

.login-form .form-group {
    margin-bottom: var(--space-md);
}

.btn-block {
    display: block;
    width: 100%;
}

/* -----------------------------------------------------------------
 * 21. Card Group Lists (Wrong Notes, Flash Cards)
 * ----------------------------------------------------------------- */
.card-group-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.card-group {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.card-group-title {
    font-size: 1rem;
    font-weight: 600;
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.card-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background-color: var(--color-border);
}

.card-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color var(--transition);
}

.card-list-item:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.card-item-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.card-item-order {
    font-weight: 500;
    font-size: 0.9375rem;
}

.card-item-date {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.empty-state-sub {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

/* -----------------------------------------------------------------
 * 22. Profile Page
 * ----------------------------------------------------------------- */
.profile-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.profile-form .form-group {
    margin-bottom: var(--space-md);
}

.profile-form input:disabled {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    cursor: not-allowed;
}

.form-hint {
    margin-top: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.text-danger {
    color: var(--color-danger);
}

.profile-actions {
    margin-top: var(--space-lg);
}

/* Profile link in nav */
.nav-profile-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
    cursor: pointer;
}

.nav-profile-link:hover {
    color: var(--color-primary);
}

/* -----------------------------------------------------------------
 * 23. Admin Page
 * ----------------------------------------------------------------- */
.admin-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-lg);
}

.admin-card-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary-light);
}

.admin-card-help {
    margin: calc(-1 * var(--space-sm)) 0 var(--space-md);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.admin-form .form-group {
    margin-bottom: var(--space-md);
}

.admin-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-lg) 0;
}

.admin-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* Checkbox label */
.form-checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    cursor: pointer;
}

.form-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

/* Inline form groups */
.form-inline-group {
    display: flex;
    gap: var(--space-sm);
    align-items: flex-end;
}

.form-inline-item {
    flex: 1;
    min-width: 0;
}

.form-label-sm {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.form-input-sm {
    padding: 6px 8px;
    font-size: 0.875rem;
}

/* Range slider */
.form-range {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    outline: none;
    border: none;
    margin: var(--space-sm) 0;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

/* Color preview */
.color-preview {
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    flex-shrink: 0;
}

/* Admin login */
.admin-login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height) - var(--footer-height));
    padding: var(--space-md);
}

.admin-login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
    width: 100%;
    max-width: 360px;
}

.admin-login-title {
    text-align: center;
    margin-bottom: var(--space-lg);
    font-size: 1.25rem;
    font-weight: 700;
}

.page-admin-standalone #app-main {
    padding-top: 0;
}

/* Admin page header */
.admin-page-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.admin-header-status {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.admin-header-pill {
    min-width: 132px;
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-bg-secondary);
}

.admin-header-pill span {
    display: block;
    margin-bottom: 2px;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    line-height: 1.2;
}

.admin-header-pill strong {
    display: block;
    color: var(--color-text);
    font-size: 0.8125rem;
    line-height: 1.25;
    white-space: nowrap;
}

.admin-range-form {
    display: grid;
    grid-template-columns: minmax(260px, 1fr) auto;
    align-items: end;
    gap: var(--space-xs) var(--space-sm);
    padding-top: var(--space-xs);
    border-top: 1px solid var(--color-border);
}

.admin-range-quick,
.admin-range-fields {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    flex-wrap: wrap;
}

.admin-range-quick a {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 4px 8px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--color-bg-secondary);
}

.admin-range-quick a:hover,
.admin-range-quick a.is-active {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.admin-range-fields label {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.admin-range-fields label span {
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-weight: 700;
}

.admin-range-fields input {
    min-width: 178px;
    height: 32px;
    padding-top: 4px;
    padding-bottom: 4px;
    font-size: 0.8125rem;
}

.admin-range-note {
    grid-column: 1 / -1;
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.admin-workspace {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: var(--space-lg);
    align-items: start;
}

.admin-side-nav {
    position: sticky;
    top: calc(var(--header-height) + var(--space-md));
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.page-admin-standalone .admin-side-nav {
    top: var(--space-md);
}

.admin-side-nav-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.admin-side-nav-group strong {
    display: block;
    margin-bottom: 4px;
    color: var(--color-text);
    font-size: 0.8125rem;
}

.admin-side-nav-group a {
    display: block;
    padding: 8px 10px;
    border-radius: var(--radius);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.admin-side-nav-group a:hover,
.admin-side-nav-group a.is-active {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.admin-side-nav-group a.is-active {
    font-weight: 800;
}

.admin-main-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
    min-width: 0;
}

.admin-section {
    display: none;
    scroll-margin-top: calc(var(--header-height) + var(--space-xl));
}

.page-admin-standalone .admin-section {
    scroll-margin-top: var(--space-lg);
}

.admin-section.is-active {
    display: block;
}

.admin-section-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.admin-metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.admin-metric-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

.admin-metric-card.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    background: #fffbeb;
}

.admin-metric-card.is-danger {
    border-color: rgba(239, 68, 68, 0.35);
    background: #fef2f2;
}

.admin-metric-label {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    margin-bottom: var(--space-xs);
}

.admin-metric-card strong {
    font-size: 1.75rem;
    line-height: 1.1;
}

.admin-metric-card small {
    display: block;
    margin-top: var(--space-xs);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.admin-diagnosis-card {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.admin-diagnosis-card span,
.admin-diagnosis-card strong,
.admin-diagnosis-card em {
    display: block;
}

.admin-diagnosis-card span {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 700;
}

.admin-diagnosis-card strong {
    margin-top: 4px;
    font-size: 1.375rem;
    line-height: 1.1;
}

.admin-diagnosis-card em {
    margin-top: 4px;
    color: var(--color-text-secondary);
    font-style: normal;
    font-size: 0.75rem;
}

.admin-diagnosis-card.is-success {
    border-color: rgba(34, 197, 94, 0.25);
    background: var(--color-success-light);
}

.admin-diagnosis-card.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    background: #fffbeb;
}

.admin-diagnosis-card.is-danger {
    border-color: rgba(239, 68, 68, 0.35);
    background: #fef2f2;
}

.admin-visual-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    align-items: stretch;
}

.admin-visual-card {
    min-height: 100%;
}

.admin-funnel {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.admin-funnel-step {
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    gap: var(--space-md);
    align-items: center;
}

.admin-funnel-meta strong,
.admin-funnel-meta span {
    display: block;
}

.admin-funnel-meta span {
    margin-top: 2px;
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.admin-funnel-bar,
.admin-single-bar,
.admin-stacked-bar {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
}

.admin-funnel-bar {
    height: 22px;
}

.admin-funnel-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-primary), #22c55e);
}

.admin-health-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
}

.admin-health-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-width: 0;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-health-ring {
    --value: 0;
    --ring-color: var(--color-primary);
    position: relative;
    display: grid;
    place-items: center;
    width: 76px;
    height: 76px;
    flex: 0 0 76px;
    border-radius: 50%;
    background: conic-gradient(var(--ring-color) calc(var(--value) * 1%), #e5e7eb 0);
}

.admin-health-ring::after {
    content: "";
    position: absolute;
    inset: 8px;
    border-radius: 50%;
    background: var(--color-surface);
}

.admin-health-ring strong {
    position: relative;
    z-index: 1;
    font-size: 0.9375rem;
    line-height: 1;
}

.admin-health-ring.is-success {
    --ring-color: var(--color-success);
}

.admin-health-ring.is-warning {
    --ring-color: var(--color-warning);
}

.admin-health-ring.is-danger {
    --ring-color: var(--color-danger);
}

.admin-health-item span,
.admin-health-item em {
    display: block;
}

.admin-health-item span {
    font-weight: 800;
}

.admin-health-item em {
    margin-top: 4px;
    color: var(--color-text-secondary);
    font-style: normal;
    font-size: 0.75rem;
}

.admin-live-hero {
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.admin-live-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.admin-live-head h3 {
    margin: 0;
    color: var(--color-text);
    font-size: 1.25rem;
    font-weight: 900;
}

.admin-live-head p {
    margin: 6px 0 0;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.admin-live-updated {
    flex: 0 0 auto;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
    text-align: right;
}

.admin-live-updated span,
.admin-live-updated strong {
    display: block;
}

.admin-live-updated span {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 800;
}

.admin-live-updated strong {
    margin-top: 2px;
    color: var(--color-text);
    font-size: 0.875rem;
}

.admin-live-autorefresh {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin-top: 8px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 800;
}

.admin-live-autorefresh input {
    margin: 0;
}

.admin-live-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-md);
}

.admin-live-summary-grid > div {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-live-summary-grid > div.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    background: #fffbeb;
}

.admin-live-summary-grid span,
.admin-live-summary-grid strong,
.admin-live-summary-grid em {
    display: block;
}

.admin-live-summary-grid span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 800;
}

.admin-live-summary-grid strong {
    margin-top: 4px;
    font-size: 1.625rem;
    line-height: 1.1;
}

.admin-live-summary-grid em {
    margin-top: 4px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-style: normal;
}

.admin-live-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    align-items: stretch;
}

.admin-live-chart-card {
    min-width: 0;
}

.admin-live-legend {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-md) 0;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 800;
}

.admin-live-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.admin-live-legend i {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.admin-live-legend .is-events,
.admin-live-minute-bar .is-events {
    background: var(--color-primary);
}

.admin-live-legend .is-sessions,
.admin-live-minute-bar .is-sessions {
    background: var(--color-success);
}

.admin-live-legend .is-problem,
.admin-live-minute-bar .is-problem {
    background: var(--color-danger);
}

.admin-live-minute-chart {
    display: grid;
    grid-template-columns: repeat(30, minmax(18px, 1fr));
    gap: 5px;
    min-height: 220px;
    padding-top: var(--space-sm);
    overflow-x: auto;
}

.admin-live-minute-bar {
    position: relative;
    display: block;
    min-width: 18px;
    min-height: 198px;
    padding-bottom: 38px;
}

.admin-live-minute-bar > span {
    position: absolute;
    bottom: 38px;
    left: 0;
    display: block;
    min-height: 3px;
    width: 100%;
    border-radius: 4px 4px 0 0;
    opacity: 0.88;
}

.admin-live-minute-bar .is-sessions {
    width: 62%;
    left: 19%;
    opacity: 0.7;
}

.admin-live-minute-bar .is-problem {
    width: 34%;
    left: 33%;
}

.admin-live-minute-bar em {
    position: absolute;
    bottom: 0;
    left: 50%;
    color: var(--color-text-muted);
    font-size: 0.625rem;
    font-style: normal;
    text-align: center;
    writing-mode: vertical-rl;
    transform: translateX(-50%) rotate(180deg);
}

.admin-live-bars {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.admin-live-bars h4 {
    margin: var(--space-xs) 0 0;
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: 900;
}

.admin-live-bar-row {
    display: grid;
    grid-template-columns: minmax(0, 120px) minmax(0, 1fr);
    gap: var(--space-sm);
    align-items: center;
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-live-bar-row div {
    min-width: 0;
}

.admin-live-bar-row strong,
.admin-live-bar-row span {
    display: block;
}

.admin-live-bar-row strong {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.8125rem;
}

.admin-live-bar-row span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-live-bar-row b {
    display: block;
    height: 10px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
}

.admin-live-bar-row i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-primary), var(--color-success));
}

.admin-session-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
}

.admin-session-card {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-success);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-session-card.is-warning {
    border-left-color: var(--color-warning);
}

.admin-session-card.is-danger {
    border-left-color: var(--color-danger);
}

.admin-session-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-sm);
}

.admin-session-head strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.9375rem;
}

.admin-session-card p {
    margin: var(--space-xs) 0 var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.admin-session-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
}

.admin-session-metrics span {
    padding: 7px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: #ffffff;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
}

.admin-session-metrics b {
    display: block;
    margin-top: 2px;
    color: var(--color-text);
    font-size: 0.8125rem;
}

.admin-session-route-line {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin: var(--space-sm) 0;
}

.admin-session-route-line em {
    padding: 3px 7px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: #ffffff;
    color: var(--color-text-secondary);
    font-size: 0.6875rem;
    font-style: normal;
    font-weight: 800;
}

.admin-session-card small {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.admin-monitor-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-lg);
    align-items: start;
}

.admin-hourly-chart {
    display: grid;
    grid-template-columns: repeat(24, minmax(12px, 1fr));
    gap: 4px;
    align-items: end;
    height: 180px;
    padding-top: var(--space-md);
}

.admin-hourly-bar {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 4px;
    min-width: 0;
}

.admin-hourly-bar span {
    display: block;
    min-height: 4px;
    border-radius: 4px 4px 0 0;
    background: linear-gradient(180deg, var(--color-primary), #75c7ef);
}

.admin-hourly-bar em {
    font-style: normal;
    font-size: 0.625rem;
    color: var(--color-text-muted);
    text-align: center;
}

.admin-rank-list,
.admin-flow-list,
.admin-insight-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.admin-rank-row,
.admin-insight-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.admin-insight-row strong,
.admin-insight-row span {
    display: block;
}

.admin-insight-row span {
    margin-top: 3px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-insight-row em {
    flex-shrink: 0;
    font-style: normal;
    color: var(--color-primary);
    font-weight: 800;
}

.admin-rank-row {
    display: block;
}

.admin-rank-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-xs);
}

.admin-rank-meta span {
    color: var(--color-text-secondary);
    font-weight: 700;
}

.admin-rank-detail {
    margin-top: 4px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.admin-rank-track {
    height: 8px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
}

.admin-rank-track span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-primary), #75c7ef);
}

.admin-bar-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.admin-bar-list.is-compact {
    gap: var(--space-sm);
}

.admin-bar-list + .admin-table-wrap,
.admin-pressure-grid + .admin-table-wrap,
.admin-api-timeline + .admin-table-wrap {
    margin-top: var(--space-lg);
}

.admin-api-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.admin-api-summary-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
}

.admin-api-status-card {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-success);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-api-status-card.is-warning {
    border-left-color: var(--color-warning);
}

.admin-api-status-card.is-danger {
    border-left-color: var(--color-danger);
}

.admin-api-status-head,
.admin-api-status-foot {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
}

.admin-api-status-head {
    align-items: flex-start;
}

.admin-api-status-head strong,
.admin-api-status-head span {
    display: block;
    word-break: break-word;
}

.admin-api-status-head span,
.admin-api-status-foot,
.admin-api-status-card p {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-api-status-head em {
    flex-shrink: 0;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: #ffffff;
    color: var(--color-text);
    font-size: 0.6875rem;
    font-style: normal;
    font-weight: 800;
}

.admin-api-status-card.is-warning .admin-api-status-head em {
    color: var(--color-warning);
}

.admin-api-status-card.is-danger .admin-api-status-head em {
    color: var(--color-danger);
}

.admin-api-status-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
    margin: var(--space-sm) 0;
}

.admin-api-status-metrics div {
    padding: 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #ffffff;
}

.admin-api-status-metrics span,
.admin-api-status-metrics strong {
    display: block;
}

.admin-api-status-metrics span {
    color: var(--color-text-muted);
    font-size: 0.6875rem;
}

.admin-api-status-metrics strong {
    margin-top: 2px;
    font-size: 0.875rem;
}

.admin-api-status-card p {
    margin: var(--space-sm) 0 0;
    word-break: break-word;
}

.admin-bar-row {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-bar-list.is-compact .admin-bar-row {
    padding: var(--space-sm);
}

.admin-bar-meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.admin-bar-meta strong {
    min-width: 0;
    word-break: break-word;
}

.admin-bar-meta span,
.admin-bar-foot {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-stacked-bar,
.admin-single-bar {
    height: 12px;
}

.admin-stacked-bar {
    display: flex;
}

.admin-stacked-bar span,
.admin-single-bar span {
    display: block;
    height: 100%;
}

.admin-stacked-bar .is-success,
.admin-single-bar .is-success {
    background: var(--color-success);
}

.admin-stacked-bar .is-warning,
.admin-single-bar .is-warning {
    background: var(--color-warning);
}

.admin-stacked-bar .is-danger,
.admin-single-bar .is-danger {
    background: var(--color-danger);
}

.admin-bar-foot {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-xs);
}

.admin-inline-gauge {
    display: inline-block;
    width: 72px;
    height: 7px;
    margin-left: 4px;
    overflow: hidden;
    vertical-align: 1px;
    border-radius: var(--radius-full);
    background: #e5e7eb;
}

.admin-inline-gauge i {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-warning), var(--color-danger));
}

.admin-compact-card {
    min-width: 0;
}

.admin-time-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.admin-time-summary div {
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-time-summary span,
.admin-time-summary strong,
.admin-time-summary em {
    display: block;
}

.admin-time-summary span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-time-summary strong {
    margin-top: 2px;
    font-size: 1rem;
}

.admin-time-summary em {
    margin-top: 2px;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-style: normal;
}

.admin-hour-heatmap {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 4px;
}

.admin-hour-heatmap span {
    --heat: 0%;
    display: grid;
    place-items: center;
    min-height: 28px;
    border-radius: 6px;
    color: var(--color-text-secondary);
    font-size: 0.6875rem;
    font-weight: 700;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.16) var(--heat), var(--color-bg-tertiary) 0);
}

.admin-hourly-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-sm);
}

.admin-hourly-unified {
    width: 100%;
    overflow-x: auto;
}

.admin-hourly-unified-head,
.admin-hourly-unified-row {
    display: grid;
    grid-template-columns: minmax(130px, 1.1fr) minmax(480px, 4fr) minmax(90px, 0.8fr) minmax(120px, 0.9fr);
    gap: var(--space-sm);
    align-items: center;
    min-width: 840px;
}

.admin-hourly-unified-head {
    position: sticky;
    top: 0;
    z-index: 1;
    padding: 0 0 var(--space-xs);
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-weight: 800;
    background: var(--color-surface);
}

.admin-hourly-unified-row {
    padding: var(--space-sm) 0;
    border-top: 1px solid var(--color-border);
}

.admin-hourly-unified-row strong {
    min-width: 0;
    word-break: break-word;
}

.admin-hourly-unified-row strong small {
    display: block;
    margin-top: 2px;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    font-weight: 600;
}

.admin-hourly-unified-row > span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
}

.admin-hourly-heat-cells {
    display: grid;
    grid-template-columns: repeat(24, minmax(18px, 1fr));
    gap: 2px;
}

.admin-hourly-heat-cells span {
    --heat: 0%;
    display: grid;
    place-items: center;
    min-height: 24px;
    border-radius: 4px;
    color: var(--color-text);
    font-size: 0.625rem;
    font-weight: 800;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.24) var(--heat), var(--color-bg-tertiary) 0);
}

.admin-hourly-unified.is-api .admin-hourly-heat-cells span {
    background: linear-gradient(180deg, rgba(239, 68, 68, 0.25) var(--heat), var(--color-bg-tertiary) 0);
}

.admin-hourly-row {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-hourly-row-meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-xs);
}

.admin-hourly-row-meta strong,
.admin-hourly-row-meta span {
    display: block;
}

.admin-hourly-row-meta span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-align: right;
}

.admin-mini-hours {
    display: grid;
    grid-template-columns: repeat(24, minmax(3px, 1fr));
    align-items: end;
    gap: 2px;
    height: 30px;
    margin-top: var(--space-sm);
}

.admin-mini-hours span {
    --height: 0%;
    display: block;
    height: var(--height);
    min-height: 2px;
    border-radius: 3px 3px 0 0;
    background: linear-gradient(180deg, var(--color-primary), #75c7ef);
    opacity: 0.85;
}

.admin-pressure-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-sm);
}

.admin-pressure-cell {
    --score: 0%;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.16) var(--score), var(--color-bg-secondary) 0);
}

.admin-pressure-cell.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    background: linear-gradient(90deg, rgba(245, 158, 11, 0.22) var(--score), #fffbeb 0);
}

.admin-pressure-cell.is-danger {
    border-color: rgba(239, 68, 68, 0.35);
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.22) var(--score), #fef2f2 0);
}

.admin-pressure-cell strong,
.admin-pressure-cell span,
.admin-pressure-cell em {
    display: block;
}

.admin-pressure-cell span,
.admin-pressure-cell em {
    margin-top: 4px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-pressure-cell em {
    font-style: normal;
    color: var(--color-text-muted);
}

.admin-flow-row {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
}

.admin-flow-meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.admin-flow-meta span {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-flow-badges {
    display: flex;
    justify-content: flex-end;
    gap: 4px;
    flex-wrap: wrap;
}

.admin-flow-badges em {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    background: #ffffff;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    font-size: 0.6875rem;
    font-style: normal;
    font-weight: 800;
}

.admin-flow-badges em.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    color: var(--color-warning);
    background: #fffbeb;
}

.admin-flow-badges em.is-danger {
    border-color: rgba(239, 68, 68, 0.35);
    color: var(--color-danger);
    background: #fef2f2;
}

.admin-flow-path {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.admin-flow-path span {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    background: #ffffff;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-flow-timeline {
    display: flex;
    gap: var(--space-sm);
    margin: var(--space-sm) 0 0;
    padding: 0;
    overflow-x: auto;
    list-style: none;
}

.admin-flow-timeline li {
    position: relative;
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    min-width: 96px;
}

.admin-flow-timeline li::after {
    content: "";
    width: 22px;
    height: 2px;
    margin-left: var(--space-sm);
    background: var(--color-border);
}

.admin-flow-timeline li:last-child::after {
    display: none;
}

.admin-flow-timeline span {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 5px 9px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: #ffffff;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 800;
    white-space: nowrap;
}

.admin-flow-timeline li.is-warning span {
    border-color: rgba(245, 158, 11, 0.35);
    background: #fffbeb;
    color: var(--color-warning);
}

.admin-flow-timeline li.is-danger span {
    border-color: rgba(239, 68, 68, 0.35);
    background: #fef2f2;
    color: var(--color-danger);
}

.admin-flow-foot {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-top: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.admin-customer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-md);
}

.admin-customer-card {
    --score: 0%;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.12) var(--score), var(--color-bg-secondary) 0);
}

.admin-customer-head {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.admin-customer-head strong,
.admin-customer-head span,
.admin-customer-card small {
    display: block;
}

.admin-customer-head span,
.admin-customer-card small {
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-customer-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
}

.admin-customer-metrics span {
    padding: 7px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background: #ffffff;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
}

.admin-customer-metrics b {
    display: block;
    margin-top: 2px;
    color: var(--color-text);
    font-size: 0.875rem;
}

.admin-customer-routes {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin: var(--space-sm) 0;
}

.admin-customer-routes em {
    padding: 3px 7px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: #ffffff;
    color: var(--color-text-secondary);
    font-size: 0.6875rem;
    font-style: normal;
    font-weight: 800;
}

.admin-criteria-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-sm);
}

.admin-criteria-list span {
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 800;
}

.admin-detail-disclosure summary {
    cursor: pointer;
    color: var(--color-primary);
    font-weight: 800;
    white-space: nowrap;
}

.admin-error-example {
    min-width: 320px;
    margin-top: var(--space-sm);
    padding: var(--space-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #ffffff;
}

.admin-error-example strong,
.admin-error-example span,
.admin-error-example code {
    display: block;
}

.admin-error-example span {
    margin-top: 3px;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
}

.admin-error-example code {
    margin-top: 6px;
    padding: 8px;
    overflow: auto;
    border-radius: 6px;
    background: var(--color-bg-tertiary);
    color: var(--color-text);
    font-size: 0.75rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.admin-table-wrap {
    width: 100%;
    overflow: auto;
}

.admin-table-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin: var(--space-md) 0;
}

.admin-table-search {
    width: min(340px, 100%);
}

.admin-table-pager {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
}

.admin-table-pager select {
    width: 96px;
}

.admin-table-status {
    min-width: 92px;
    text-align: right;
    white-space: nowrap;
}

.admin-data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.admin-data-table th,
.admin-data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
    white-space: nowrap;
}

.admin-data-table th {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    font-weight: 700;
}

.admin-data-table strong {
    color: var(--color-text);
    font-weight: 800;
}

.admin-data-table small {
    display: inline-block;
    margin-top: 3px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    line-height: 1.35;
    white-space: normal;
}

.admin-data-table code {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.admin-settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.admin-settings-block {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.admin-settings-block h4 {
    margin-bottom: var(--space-md);
    font-size: 0.9375rem;
    font-weight: 800;
}

.admin-settings-grid label span {
    display: block;
    margin-bottom: var(--space-xs);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 600;
}

.admin-ip-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.admin-skill-auth-toolbar {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) 150px 130px auto auto;
    gap: var(--space-sm);
    align-items: center;
    margin-bottom: var(--space-md);
}

.admin-table-caption {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    margin: var(--space-md) 0 var(--space-sm);
}

.admin-table-caption strong {
    color: var(--color-text);
    font-size: 0.9375rem;
    font-weight: 900;
}

.admin-table-caption span {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 700;
}

.admin-auth-status-stack {
    display: grid;
    gap: 8px;
    min-width: 220px;
}

.admin-auth-status-stack > div {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
}

.admin-skill-auth-pagination {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    font-weight: 700;
}

.admin-skill-auth-pagination .is-disabled {
    pointer-events: none;
    opacity: 0.45;
}

.admin-policy-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.admin-policy-card {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-policy-card strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.875rem;
}

.admin-policy-card span,
.admin-note {
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    line-height: 1.6;
}

.admin-policy-card.is-on {
    border-color: rgba(34, 197, 94, 0.35);
    background: var(--color-success-light);
}

.admin-rate-state {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.admin-rate-state div {
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg-secondary);
}

.admin-rate-state span {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    margin-bottom: 4px;
}

.admin-rate-state strong {
    display: block;
    font-size: 0.875rem;
    word-break: break-word;
}

.admin-note {
    margin-top: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius);
    background: var(--color-info-light);
}

.admin-note strong {
    display: block;
    margin-bottom: 4px;
    color: var(--color-text);
}

.admin-help-list {
    display: grid;
    gap: 4px;
    margin: 0;
    padding-left: 18px;
}

.admin-inline-form {
    display: inline;
}

.admin-security-type {
    display: inline-flex;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: var(--color-danger-light);
    color: var(--color-danger);
    font-size: 0.75rem;
    font-weight: 700;
}

.admin-status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: #ffffff;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    font-weight: 800;
    white-space: nowrap;
}

.admin-status-badge.is-success {
    border-color: rgba(34, 197, 94, 0.35);
    background: var(--color-success-light);
    color: var(--color-success);
}

.admin-status-badge.is-warning {
    border-color: rgba(245, 158, 11, 0.35);
    background: #fffbeb;
    color: var(--color-warning);
}

.admin-status-badge.is-danger {
    border-color: rgba(239, 68, 68, 0.35);
    background: #fef2f2;
    color: var(--color-danger);
}

.admin-status-badge.is-muted {
    border-color: var(--color-border);
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.admin-empty {
    color: var(--color-text-muted);
    padding: var(--space-md);
    text-align: center;
    background: var(--color-bg-secondary);
    border-radius: var(--radius);
}

/* Admin layout — 2 column: preview left, settings right */
.admin-container {
    width: 100%;
    max-width: min(1760px, calc(100vw - 24px));
    padding-left: 12px;
    padding-right: 12px;
}

.admin-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
}

.admin-preview-panel {
    position: sticky;
    top: calc(var(--header-height) + var(--space-md));
}

/* 워터마크 편집 input/select — 레이어는 크게, 내부 텍스트는 작게 (운영자 요청).
   #section-image (이미지 워터마크), #section-content (콘텐츠 워터마크) 양쪽 적용. */
#section-image input.form-input,
#section-image select.form-input,
#section-image .form-input-sm,
#section-content input.form-input,
#section-content select.form-input,
#section-content .form-input-sm {
    min-height: 42px;
    padding: 10px 12px;
    font-size: 12px;       /* 내부 텍스트 작게 */
    line-height: 1.3;
}
/* 색상 박스(type=color) 는 별도 — 내부 텍스트 없음. 높이만 맞춤. */
#section-image input[type="color"],
#section-content input[type="color"] {
    height: 42px !important;
}

.admin-settings-panel {
    min-width: 0;
}

.admin-save-bar {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

/* Preview controls */
.preview-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.preview-scale-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.preview-scale-control .form-range {
    margin: 0;
}

/* Preview box — simulates exam question area */
.preview-wrapper {
    overflow: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #f9f9f9;
}

.preview-box {
    position: relative;
    width: 100%;
    min-height: 300px;
    padding: var(--space-lg);
    background: #ffffff;
    overflow: hidden;
}

.preview-sample-text {
    position: relative;
    z-index: 1;
    pointer-events: none;
}

/* Watermark tabs */
.wm-tabs {
    display: flex;
    gap: 2px;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--space-md);
    overflow-x: auto;
}

.wm-tab {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: color var(--transition), border-color var(--transition);
    user-select: none;
}

.wm-tab:hover {
    color: var(--color-text);
}

.wm-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.wm-tab-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-success);
    flex-shrink: 0;
}

.wm-tab-dot.off {
    background-color: var(--color-text-muted);
    opacity: 0.4;
}

/* Watermark tab body */
.wm-tab-body {
    display: none;
}

.wm-tab-body.active {
    display: block;
}

/* Watermark form rows */
.wm-form-row {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.wm-form-header {
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.wm-field {
    flex: 1;
    min-width: 140px;
}

.wm-field label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

/* Range + number input pair */
.wm-range-pair {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.wm-range-pair input[type="range"] {
    flex: 1;
    min-width: 0;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    outline: none;
    border: none;
    margin: 0;
}

.wm-range-pair input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

.wm-range-pair input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: var(--shadow-sm);
}

.wm-range-pair input[type="number"] {
    width: 64px;
    flex-shrink: 0;
    text-align: center;
}

/* Responsive admin layout */
@media (max-width: 1023px) {
    .admin-workspace {
        grid-template-columns: 1fr;
    }

    .admin-side-nav {
        position: static;
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .admin-layout {
        grid-template-columns: 1fr;
    }

    .admin-visual-grid {
        grid-template-columns: 1fr;
    }

    .admin-metric-grid,
    .admin-live-summary-grid,
    .admin-monitor-layout,
    .admin-live-layout,
    .admin-policy-grid,
    .admin-rate-state {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-preview-panel {
        position: static;
    }
}

@media (max-width: 767px) {
    .admin-page-header {
        padding: var(--space-sm);
    }

    .admin-header-status {
        align-items: stretch;
    }

    .admin-header-pill {
        flex: 1 1 160px;
        min-width: 0;
    }

    .admin-header-status .btn {
        width: 100%;
    }

    .admin-range-form {
        grid-template-columns: 1fr;
    }

    .admin-range-fields {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-range-fields input,
    .admin-range-fields .btn {
        width: 100%;
    }

    .admin-api-status-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-table-controls,
    .admin-table-pager {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-table-search,
    .admin-table-pager select,
    .admin-table-pager .btn {
        width: 100%;
    }

    .admin-table-status {
        min-width: 0;
        text-align: left;
    }

    .admin-metric-grid,
    .admin-live-summary-grid,
    .admin-health-grid,
    .admin-monitor-layout,
    .admin-live-layout,
    .admin-settings-grid,
    .admin-ip-form,
    .admin-skill-auth-toolbar,
    .admin-side-nav,
    .admin-policy-grid,
    .admin-rate-state {
        grid-template-columns: 1fr;
    }

    .admin-table-caption,
    .admin-skill-auth-pagination {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-flow-meta {
        align-items: flex-start;
        flex-direction: column;
    }

    .admin-flow-badges {
        justify-content: flex-start;
    }

    .admin-flow-foot,
    .admin-customer-head,
    .admin-live-head,
    .admin-api-status-head,
    .admin-api-status-foot {
        flex-direction: column;
    }

    .admin-customer-metrics,
    .admin-session-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-funnel-step,
    .admin-bar-meta,
    .admin-hourly-row-meta {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .admin-hourly-row-meta span {
        text-align: left;
    }

    .admin-bar-foot,
    .admin-time-summary {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .admin-hour-heatmap {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .admin-hourly-chart {
        min-width: 560px;
    }

    .wm-form-row {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .wm-form-header {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-sm);
    }

    .wm-field {
        min-width: 0;
    }

    /* 좁은 폭에서 number 입력 폭 줄여 슬라이더가 너무 짜부라지지 않게 */
    .wm-range-pair input[type="number"] {
        width: 56px;
    }

    /* 미리보기 컨트롤 줄바꿈 안정화 */
    .preview-controls {
        gap: var(--space-sm);
    }

    .admin-save-bar {
        flex-direction: column;
    }

    .admin-save-bar .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .admin-layout {
        gap: var(--space-md);
    }
    /* range + number pair 가 좁은 폭에서 같은 줄에 안 들어갈 때 자연 줄바꿈 */
    .wm-range-pair {
        flex-wrap: wrap;
    }
    .wm-range-pair input[type="range"] {
        flex-basis: 100%;
    }
    .wm-range-pair input[type="number"] {
        width: 64px;
    }
    .wm-tabs {
        gap: 0;
    }
    .wm-tab {
        padding: var(--space-sm);
        font-size: 0.8125rem;
    }
}

/* -----------------------------------------------------------------
 * 24. Badge Variants
 * ----------------------------------------------------------------- */
.badge-time {
    background-color: var(--color-info-light);
    color: var(--color-primary);
}

/* -----------------------------------------------------------------
 * 25. Exam Card Grid (iOS-style)
 * ----------------------------------------------------------------- */

/* Grid container — iOS parity: 20px gap phone, 32px pad */
.exam-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(155px, 1fr));
    gap: 20px;
}

/* Individual card — 모든 메뉴 통일 외곽 (오답·기출·모의·암기 4메뉴 공통) */
.exam-card {
    background: var(--color-surface);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    border: 1px solid #E4E5ED;
    min-height: 180px;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
    text-decoration: none;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    position: relative;
    cursor: pointer;
    box-sizing: border-box;
}

.exam-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    color: var(--color-text);
}

.exam-card:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Free/sample badge - top right corner */
.exam-card-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: rgba(15, 145, 219, 0.15);
    color: var(--color-primary);
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    z-index: 1;
}

/* Card body — iOS parity: upper area ~155px phone */
.exam-card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) var(--space-md);
    text-align: center;
    min-height: 110px;
}

.exam-card-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.4;
}

.exam-card-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-xs);
    font-weight: 500;
}

/* Count bar at bottom — iOS parity: #FAFAFA bg, #8F9BB3 text */
.exam-card-count {
    background: #FAFAFA;
    border-top: 1px solid #F0F0F0;
    padding: 8px var(--space-md);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: #8F9BB3;
    min-height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.exam-card-info {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
    background: var(--color-bg-secondary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}

/* Status bar at bottom */
.exam-card-status {
    padding: 8px var(--space-md);
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 500;
    border-top: 1px solid var(--color-border);
}

.exam-card-status.status-before {
    background: var(--color-bg-tertiary);
    color: var(--color-text-muted);
}

.exam-card-status.status-ing {
    background: var(--color-bg-tertiary);
    color: var(--color-primary);
}

.exam-card-status.status-end {
    background: var(--color-primary);
    color: #ffffff;
}

/* Year group header in card grid */
.exam-card-group {
    margin-bottom: var(--space-xl);
}

.exam-card-group-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary-light);
}

/* Responsive card grid — iOS parity */
@media (max-width: 767px) {
    .exam-card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .exam-card-body {
        padding: var(--space-md) var(--space-sm);
        min-height: 95px;
    }

    .exam-card-title {
        font-size: 1rem;
    }

    .exam-card-count {
        min-height: 34px;
        font-size: 0.8125rem;
    }
}

@media (min-width: 768px) {
    .exam-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
        gap: 28px;
    }
}

/* Desktop (1280px+): comfortable card sizing and spacing */
@media (min-width: 1280px) {
    .exam-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
        gap: 28px 32px;
    }

    .exam-card-body {
        min-height: 120px;
        padding: var(--space-xl) var(--space-lg);
    }

    .exam-card-title {
        font-size: 1.1875rem;
    }
}

/* Large desktop (1440px+): wider cards, more breathing room */
@media (min-width: 1440px) {
    .exam-card-grid {
        grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
        gap: 32px;
    }

    .exam-card-body {
        min-height: 130px;
        padding: var(--space-xl) var(--space-lg);
    }

    .exam-card-title {
        font-size: 1.25rem;
    }

    .exam-card-count {
        padding: 10px var(--space-md);
        font-size: 0.9375rem;
        min-height: 42px;
    }
}

/* -----------------------------------------------------------------
 * 23. Print Protection — hide exam images when printing / PDF saving
 * ----------------------------------------------------------------- */
@media print {
    .exam-image,
    .exam-image-wrapper {
        display: none !important;
    }

    .exam-text-content,
    .exam-html-content,
    .card-text {
        visibility: hidden !important;
    }

    .panel-content::after,
    .card-content::after {
        content: "인쇄가 제한된 콘텐츠입니다.";
        display: block;
        padding: 2rem;
        text-align: center;
        font-size: 1.25rem;
        color: #999;
        border: 2px dashed #ccc;
        margin: 1rem;
    }

    .content-watermark-overlay,
    .wm-basic-overlay {
        display: none !important;
    }

    .panel-content::before {
        display: none !important;
    }
}

/* -----------------------------------------------------------------
 * 23b. Text Content Watermark (protection)
 * --wm-bg CSS variable set by layout.php from watermark.json config.
 * Uses ::before overlay ON TOP of text content to block drag selection.
 * ----------------------------------------------------------------- */

/* Watermark overlay on top of text content to block drag selection.
 * position: absolute keeps it out of document flow (no layout impact).
 * Covers the visible viewport of the scroll container. */
.panel-content {
    position: relative;
}

.panel-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    background: var(--wm-bg, none);
    background-repeat: repeat;
    pointer-events: auto;
    touch-action: pan-y;
    cursor: default;
}

/* Basic overlay watermarks — hide when printing */
.wm-basic-overlay {
    pointer-events: none;
}

/* -----------------------------------------------------------------
 * 27. View Tabs (round/subject toggle)
 * ----------------------------------------------------------------- */
.view-tabs {
    display: flex;
    gap: 2px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius);
    padding: 2px;
    margin-bottom: var(--space-lg);
    width: fit-content;
}

.view-tab {
    padding: 6px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
}

.view-tab.active {
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}

/* -----------------------------------------------------------------
 * 28. Lecture Video Modal (Floating PiP Panel)
 * ----------------------------------------------------------------- */
.lecture-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    pointer-events: none;
}

.lecture-modal-overlay {
    display: none;
}

.lecture-modal-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 400px;
    z-index: 10001;
    pointer-events: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
}

.lecture-modal-close {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    transition: background var(--transition);
    z-index: 2;
}

.lecture-modal-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.lecture-modal-player {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000000;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.lecture-modal-player iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Mobile adjustments for lecture modal */
@media (max-width: 767px) {
    .lecture-modal-container {
        width: 90vw;
        right: 5vw;
        bottom: 16px;
    }

    .lecture-modal-close {
        top: 4px;
        right: 4px;
        width: 28px;
        height: 28px;
        font-size: 1rem;
    }
}

/* -----------------------------------------------------------------
 * 29. Note Overlay
 * ----------------------------------------------------------------- */
.note-overlay {
    position: absolute;
    top: 0;
    right: 0;
    width: 350px;
    height: 100%;
    background: rgba(255, 255, 255, 0.97);
    border-left: 2px solid var(--color-primary);
    z-index: 100;
    display: flex;
    flex-direction: column;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
}

.note-overlay-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.note-overlay-title {
    font-weight: 600;
    color: var(--color-primary);
}

.note-overlay-tools {
    display: flex;
    gap: var(--space-xs);
}

.note-overlay-body {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.note-overlay-body canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media (max-width: 768px) {
    .note-overlay {
        width: 100%;
    }
}

/* ===================================================
   30. Review Entry Popup / Delete All Modal
   =================================================== */

/* --- View All card (전체보기) — white bg + primary text (iOS parity) --- */
.exam-card.exam-card-all {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    border-left: 3px solid var(--color-primary);
}

.exam-card.exam-card-all .exam-card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.exam-card.exam-card-all .exam-card-title {
    color: var(--color-primary);
    font-size: 1.125rem;
    font-weight: 500;
}

.exam-card.exam-card-all .exam-card-subtitle {
    color: #8F9BB3;
}

.exam-card.exam-card-all:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

/* --- Entry popup modal (처음부터 / 이어서) --- */
.review-entry-modal-content {
    max-width: 360px;
    text-align: center;
}

.review-entry-modal-content h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.review-entry-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.review-entry-btn {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    min-height: 48px;
}

.review-entry-btn.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    border: 1px solid var(--color-primary);
}

.review-entry-btn.btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.review-entry-btn.btn-outline {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.review-entry-btn.btn-outline:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-hover);
}

/* --- View tabs row with delete button --- */
.view-tabs-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* 좌측 그룹: 탭 + 정렬 (학습 컨텍스트와 가까운 좌측 정렬) */
.view-tabs-row-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* 우측 그룹: 선택삭제 + 전체삭제 (위험 동작은 우측에 분리) */
.view-tabs-row-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.view-tabs-row .view-tabs {
    margin-bottom: 0;
}

/* --- 공통 outline 버튼 베이스 (선택삭제 / 전체삭제) --- */
.btn-bulk-delete,
.btn-delete-all {
    padding: 5px 12px;
    font-size: 0.8125rem;
    font-weight: 500;
    background: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

/* --- 선택삭제 (.btn-bulk-delete): 회색 outline — 보조 동작, 위험도 낮음 --- */
.btn-bulk-delete {
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border, #d1d5db);
}

.btn-bulk-delete:hover {
    background: var(--color-bg-tertiary, #f3f4f6);
    border-color: var(--color-border-hover, #9ca3af);
    color: var(--color-text-primary);
}

/* 선택삭제 disabled 시각 (bulk-select-mode 중 0개 선택) */
.btn-bulk-delete.is-disabled {
    color: var(--color-text-muted, #9ca3af);
    background: var(--color-bg-tertiary, #f3f4f6);
    border-color: var(--color-border, #e5e7eb);
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-bulk-delete.is-disabled:hover {
    background: var(--color-bg-tertiary, #f3f4f6);
    border-color: var(--color-border, #e5e7eb);
    color: var(--color-text-muted, #9ca3af);
}

/* --- 전체삭제 (.btn-delete-all): 빨간 outline — 위험 동작 강조 --- */
.btn-delete-all {
    color: var(--color-danger);
    border: 1px solid var(--color-danger);
}

.btn-delete-all:hover {
    background: var(--color-danger);
    color: #ffffff;
}

/* --- 모바일 (≤640px): 좌/우 그룹 wrap, 줄 단위 stack --- */
@media (max-width: 640px) {
    .view-tabs-row {
        gap: var(--space-xs, 6px);
    }
    .view-tabs-row-left,
    .view-tabs-row-right {
        flex: 1 1 auto;
    }
    .view-tabs-row-right {
        justify-content: flex-end;
    }
    .btn-bulk-delete,
    .btn-delete-all {
        padding: 5px 10px;
        font-size: 0.75rem;
    }
}

/* --- Danger button in delete modal (sizing overrides) --- */
.btn.btn-danger {
    padding: 8px 20px;
    font-size: 0.9375rem;
    font-weight: 600;
}

/* --- Subscription guide bubble (iOS parity: ? button + popover) --- */
.subscription-guide {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.subscription-guide-btn {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1.5px solid #8F9BB3;
    background: var(--color-surface);
    color: #8F9BB3;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-family: inherit;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.subscription-guide-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.subscription-guide-bubble {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    max-width: 305px;
    width: max-content;
    min-width: 220px;
    background: var(--color-surface);
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.12);
    padding: 14px 18px;
    z-index: 100;
    text-align: center;
    line-height: 1.6;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.subscription-guide-bubble.visible {
    display: block;
}

.subscription-guide-bubble::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 8px;
    width: 12px;
    height: 12px;
    background: var(--color-surface);
    box-shadow: -1px -1px 2px rgba(0, 0, 0, 0.06);
    transform: rotate(45deg);
}

/* --- Responsive --- */
@media (max-width: 767px) {
    .review-entry-modal-content {
        max-width: 100%;
        margin: 0 var(--space-sm);
    }

    .subscription-guide-bubble {
        right: -8px;
        min-width: 200px;
    }
}

/* ===================================================
   31. Desktop / Large Desktop Review UX Improvements
   =================================================== */

/* Desktop (1280px+): better page spacing and visual hierarchy */
@media (min-width: 1280px) {
    /* Page container: more generous side padding on desktop */
    .page-wrong-notes .page-container,
    .page-flash-cards .page-container,
    .page-previous-list .page-container,
    .page-mock-list .page-container {
        padding: var(--space-xl) var(--space-xl);
    }

    /* Page header: more vertical breathing room */
    .page-wrong-notes .page-header,
    .page-flash-cards .page-header,
    .page-previous-list .page-header,
    .page-mock-list .page-header {
        margin-bottom: var(--space-xl);
    }

    .page-wrong-notes .page-title,
    .page-flash-cards .page-title,
    .page-previous-list .page-title,
    .page-mock-list .page-title {
        font-size: 1.75rem;
    }

    .page-wrong-notes .page-desc,
    .page-flash-cards .page-desc {
        font-size: 0.9375rem;
        margin-top: var(--space-sm);
    }

    /* View tabs: slightly larger for desktop readability */
    .page-wrong-notes .view-tab,
    .page-flash-cards .view-tab {
        padding: 8px 20px;
        font-size: 0.9375rem;
    }

    /* View tabs row: more bottom margin */
    .page-wrong-notes .view-tabs-row,
    .page-flash-cards .view-tabs-row {
        margin-bottom: var(--space-xl);
    }

    /* Empty state: more vertical space on desktop */
    .page-wrong-notes .empty-state,
    .page-flash-cards .empty-state {
        padding: var(--space-2xl) var(--space-lg);
        max-width: 480px;
        margin: 0 auto;
    }

    .page-wrong-notes .empty-state-title,
    .page-flash-cards .empty-state-title {
        font-size: 1.0625rem;
    }

    /* Entry popup modal: well-sized and centered on desktop */
    .review-entry-modal-content {
        max-width: 400px;
        padding: var(--space-xl);
    }

    .review-entry-modal-content h3 {
        font-size: 1.25rem;
        margin-bottom: var(--space-xl);
    }

    .review-entry-actions {
        gap: var(--space-md);
    }

    .review-entry-btn {
        padding: 16px 20px;
        font-size: 1.0625rem;
        min-height: 52px;
        border-radius: var(--radius-lg);
    }

    /* Subscription guide bubble: better desktop positioning */
    .subscription-guide-bubble {
        max-width: 340px;
        padding: 16px 20px;
        font-size: 0.875rem;
        border-radius: var(--radius);
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    }

    /* Delete all button: comfortable desktop sizing */
    .btn-bulk-delete,
    .btn-delete-all {
        padding: 6px 16px;
        font-size: 0.875rem;
    }

    /* Card group title: larger on desktop */
    .exam-card-group-title {
        font-size: 1.25rem;
        margin-bottom: var(--space-lg);
    }

    /* Etc section label: slightly larger on desktop */
    .page-wrong-notes .etc-section-label,
    .page-flash-cards .etc-section-label {
        font-size: 0.875rem;
    }
}

/* Large desktop (1440px+): even more spacious layout */
@media (min-width: 1440px) {
    .page-wrong-notes .page-container,
    .page-flash-cards .page-container {
        padding: var(--space-2xl) var(--space-xl);
    }

    .page-wrong-notes .page-header,
    .page-flash-cards .page-header {
        margin-bottom: 36px;
    }

    .page-wrong-notes .page-title,
    .page-flash-cards .page-title {
        font-size: 2rem;
    }

    .page-wrong-notes .page-desc,
    .page-flash-cards .page-desc {
        font-size: 1rem;
    }

    /* View tabs row */
    .page-wrong-notes .view-tabs-row,
    .page-flash-cards .view-tabs-row {
        margin-bottom: 36px;
    }

    /* Empty state: generous on large screens */
    .page-wrong-notes .empty-state,
    .page-flash-cards .empty-state {
        padding: 64px var(--space-xl);
        max-width: 560px;
    }

    .page-wrong-notes .empty-state-title,
    .page-flash-cards .empty-state-title {
        font-size: 1.125rem;
    }

    .page-wrong-notes .empty-state-desc,
    .page-flash-cards .empty-state-desc {
        font-size: 0.9375rem;
    }

    /* Entry popup modal: refined sizing */
    .review-entry-modal-content {
        max-width: 420px;
        padding: var(--space-2xl) var(--space-xl);
    }

    /* Exam card hover: stronger lift on large desktop */
    .exam-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }
}

/* -----------------------------------------------------------------
 * 30. Desktop / PC Usability Enhancements
 *
 *  Targets auth pages, mypage, utility pages, forms, and buttons
 *  to make them comfortable on screens >= 768px.
 *  Mobile styles are unchanged.
 * ----------------------------------------------------------------- */

/* -- Form inputs: taller click targets on desktop -- */
@media (min-width: 768px) {
    .form-input,
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="url"],
    input[type="search"],
    select,
    textarea {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9375rem;
        min-height: 40px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 1.0625rem;
        min-height: 48px;
    }

    .btn-block {
        min-height: 44px;
        font-size: 1rem;
    }

    /* Modal dialog: comfortable width on desktop */
    .modal-content {
        max-width: 480px;
    }

    /* Login page: comfortable centered card */
    .login-card {
        padding: var(--space-2xl) var(--space-xl);
    }

    .login-title {
        font-size: 1.75rem;
        margin-bottom: var(--space-xl);
    }

    /* Profile card: comfortable spacing */
    .profile-card {
        padding: var(--space-2xl) var(--space-xl);
    }

    /* Page header: comfortable sizing */
    .page-header {
        margin-bottom: var(--space-lg);
    }

    .page-title {
        font-size: 1.5rem;
    }
}

/* ============================================================
   dev-043: 신규 UI 스타일 일괄 추가
   ============================================================ */

/* 1) 다중 선택 (review pages) */
.review-bulk-bar { display: flex; gap: 12px; margin: 0 0 16px; align-items: center; }
/* dev-069: 카드 = a 태그, 체크박스 = a 외부 wrapper 내부.
 * a 안에 interactive content (input) 가 들어가면 HTML5 invalid → 일부 브라우저에서
 * a 가 조기 종료되어 카드 컨텐츠가 형제로 분리되며 grid 레이아웃이 깨진다.
 * wrapper(div) 가 grid item, 내부 a.exam-card 는 100% 채움. */
.exam-card-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-self: stretch;
}
.exam-card-wrapper > .exam-card {
    flex: 1;
    width: 100%;
    height: 100%;
    align-self: stretch;
}
.review-select-cb {
    display: none;
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 2;
    margin: 0;
    width: 18px;
    height: 18px;
    cursor: pointer;
}
body.bulk-select-mode .review-select-cb { display: inline-block; }
.btn-danger { background: #E64B5E; color: #fff; border: 0; padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: 600; }
.btn-danger:hover { background: #C63E50; }

/* 2) 모의고사 결제 버튼 (#mcm-pay) - btn-primary 적용되므로 추가 작업 없음 */
.mock-create-modal .mcm-pay { /* btn-primary와 동일하게, dev-023 모달 스타일 적용됨 */ }

/* 3) 마이페이지 포인트/쿠폰/구독 */
.page-mypage .mp-section { padding: 20px; background: #fff; border: 1px solid #E4E5ED; border-radius: 12px; margin-bottom: 16px; }
.page-mypage .mp-section-title { font-size: 16px; font-weight: 700; color: #18191B; margin: 0 0 12px; }
.page-mypage .mp-points-row { display: flex; align-items: baseline; gap: 4px; }
.page-mypage .mp-points-value { font-size: 28px; font-weight: 800; color: #0093E8; }
.page-mypage .mp-points-unit { font-size: 16px; font-weight: 600; color: #0093E8; }
.page-mypage .mp-coupon-form { display: flex; gap: 8px; }
.page-mypage .mp-coupon-form input { flex: 1; padding: 10px 14px; border: 1px solid #E4E5ED; border-radius: 8px; font-size: 14px; }
.page-mypage .mp-coupon-msg { margin: 8px 0 0; font-size: 13px; color: #7A7C83; }
.page-mypage .mp-coupon-msg.success { color: #138A4F; }
.page-mypage .mp-coupon-msg.error { color: #B33344; }
.page-mypage .mp-sub-status { font-size: 14px; color: #3E4045; margin-bottom: 12px; padding: 12px; background: #F5F6F8; border-radius: 8px; }
.page-mypage .mp-sub-actions { display: flex; gap: 10px; }

/* -----------------------------------------------------------------
 * 31. MyPage Auxiliary Pages (PC-first)
 * ----------------------------------------------------------------- */
.aux-page #app-main,
.page-support-list #app-main,
.page-support-detail #app-main,
.page-support-create #app-main,
.page-notices #app-main,
.page-notice-detail #app-main {
    background: #f6f8fb;
}

.aux-shell {
    max-width: 1120px;
    margin: 0 auto;
    padding: 32px 24px 48px;
}

.aux-shell--focused {
    max-width: 980px;
}

.aux-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.aux-kicker {
    margin: 0 0 6px;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0;
}

.aux-title {
    margin: 0;
    font-size: 30px;
    font-weight: 800;
    color: #111827;
    letter-spacing: 0;
}

.aux-subtitle {
    margin: 8px 0 0;
    color: #64748b;
    font-size: 14px;
}

.aux-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex-wrap: wrap;
}

.aux-actions--start {
    justify-content: flex-start;
}

.aux-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 18px;
    align-items: start;
}

.aux-layout--wide {
    grid-template-columns: minmax(0, 1fr);
}

.aux-stack {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.aux-panel {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.aux-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 20px 22px;
    border-bottom: 1px solid #eef2f7;
}

.aux-panel-title {
    margin: 0;
    font-size: 18px;
    font-weight: 800;
    color: #111827;
}

.aux-panel-note {
    margin: 4px 0 0;
    color: #64748b;
    font-size: 13px;
}

.aux-search-form {
    margin-bottom: 18px;
}

.aux-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.aux-search .form-input {
    min-height: 44px;
}

.aux-icon-button {
    width: 44px;
    min-width: 44px;
    padding: 0;
}

.aux-filter {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    padding: 16px 22px;
    border-bottom: 1px solid #eef2f7;
}

.aux-filter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 14px;
    border: 1px solid #e2e8f0;
    border-radius: 999px;
    background: #fff;
    color: #475569;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.aux-filter-btn:hover,
.aux-filter-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.aux-list {
    display: flex;
    flex-direction: column;
}

.aux-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 16px;
    padding: 18px 22px;
    border-bottom: 1px solid #eef2f7;
    color: inherit;
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.aux-row:last-child {
    border-bottom: 0;
}

.aux-row:hover {
    background: #f8fafc;
    color: inherit;
}

.aux-row-action {
    color: #94a3b8;
    font-size: 24px;
    line-height: 1;
}

.aux-row-title {
    display: block;
    color: #111827;
    font-size: 16px;
    font-weight: 800;
    line-height: 1.45;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.aux-meta--flush + .aux-row-title {
    margin-top: 8px;
}

.aux-row-summary {
    margin-top: 5px;
    color: #64748b;
    font-size: 13px;
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.aux-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
    color: #64748b;
    font-size: 13px;
}

.aux-meta--flush {
    margin-top: 0;
}

.aux-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    white-space: nowrap;
    background: #f1f5f9;
    color: #475569;
}

.aux-badge--primary {
    background: #eff6ff;
    color: var(--color-primary);
}

.aux-badge--waiting {
    background: #f1f5f9;
    color: #475569;
}

.aux-badge--pending {
    background: #fffbeb;
    color: #b45309;
}

.aux-badge--complete {
    background: #ecfdf5;
    color: #047857;
}

.aux-side {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.aux-side-card {
    padding: 20px;
}

.aux-side-title {
    margin: 0 0 10px;
    color: #111827;
    font-size: 15px;
    font-weight: 800;
}

.aux-section-title {
    margin: 0 0 12px;
    color: #111827;
    font-size: 15px;
    font-weight: 800;
}

.aux-side-text {
    margin: 0;
    color: #64748b;
    font-size: 13px;
    line-height: 1.6;
}

.aux-side-text + .aux-side-text {
    margin-top: 12px;
}

.aux-empty {
    padding: 48px 20px;
    text-align: center;
    color: #64748b;
    background: #fff;
}

.aux-empty-title {
    margin: 0;
    color: #111827;
    font-size: 16px;
    font-weight: 800;
}

.aux-empty-text {
    margin: 8px 0 0;
    color: #64748b;
    font-size: 14px;
}

.aux-error {
    padding: 14px 16px;
    margin-bottom: 16px;
    border: 1px solid #fecaca;
    border-radius: 8px;
    background: #fef2f2;
    color: #991b1b;
    font-size: 14px;
}

.aux-more {
    display: flex;
    justify-content: center;
    padding: 18px 22px;
    border-top: 1px solid #eef2f7;
}

.aux-article {
    padding: 28px 32px 32px;
}

.aux-article-header {
    padding-bottom: 20px;
    border-bottom: 1px solid #eef2f7;
}

.aux-article-title {
    margin: 0;
    color: #111827;
    font-size: 26px;
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: 0;
    overflow-wrap: anywhere;
}

.aux-content {
    padding-top: 24px;
    color: #334155;
    font-size: 16px;
    line-height: 1.85;
    word-break: break-word;
}

.aux-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.aux-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

.aux-content p {
    margin: 0 0 14px;
}

.aux-content p:last-child {
    margin-bottom: 0;
}

.aux-content ul,
.aux-content ol {
    margin: 0 0 14px;
    padding-left: 22px;
}

/* 백엔드 HTML 콘텐츠의 표/이미지가 좁은 모바일에서 폭을 깨뜨리지 않도록 폴백. */
.aux-content table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-collapse: collapse;
    margin: 12px 0;
}

.aux-content th,
.aux-content td {
    border: 1px solid #e5e7eb;
    padding: 8px 10px;
    word-break: break-word;
}

/* 백엔드 HTML 의 pre/code/iframe 도 좁은 모바일에서 가로 스크롤로 폴백. */
.aux-content pre {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: pre;
}
.aux-content code {
    word-break: break-word;
}
.aux-content iframe,
.aux-content video {
    max-width: 100%;
    height: auto;
}

.aux-content--compact {
    padding-top: 0;
}

.aux-prewrap {
    white-space: pre-wrap;
}

.aux-answer {
    margin-top: 18px;
    padding: 22px;
    border: 1px solid #bfdbfe;
    border-radius: 10px;
    background: #eff6ff;
}

.aux-answer-title {
    margin: 0 0 12px;
    color: #0F5CA8;
    font-size: 15px;
    font-weight: 800;
}

.aux-attachments {
    margin-top: 18px;
}

.aux-attachments-panel {
    padding: 20px 22px 22px;
}

.aux-attachment-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.aux-attachment {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border: 1px solid #eef2f7;
    border-radius: 8px;
    color: #111827;
    background: #fbfdff;
    text-decoration: none;
}

.aux-attachment:hover {
    background: #f8fafc;
    color: #111827;
}

.aux-attachment-name {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
    font-weight: 700;
}

.aux-attachment-size {
    display: block;
    margin-top: 2px;
    color: #64748b;
    font-size: 12px;
}

.aux-faq-item {
    border-bottom: 1px solid #eef2f7;
}

.aux-faq-item:last-child {
    border-bottom: 0;
}

.aux-faq-question {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: 12px;
    width: 100%;
    padding: 18px 22px;
    border: 0;
    background: #fff;
    color: inherit;
    text-align: left;
    font-family: inherit;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.aux-faq-question:hover {
    background: #f8fafc;
}

.aux-faq-qmark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: #eff6ff;
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 800;
}

.aux-faq-title {
    display: block;
    color: #111827;
    font-size: 15px;
    font-weight: 800;
    line-height: 1.5;
}

.aux-faq-arrow {
    color: #94a3b8;
    font-size: 18px;
    line-height: 1.4;
    transition: transform var(--transition-fast);
}

.aux-faq-item.open .aux-faq-arrow {
    transform: rotate(90deg);
}

.aux-faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
}

.aux-faq-answer-inner {
    padding: 0 22px 20px 62px;
    color: #334155;
    font-size: 15px;
    line-height: 1.75;
    word-break: break-word;
}

.aux-faq-answer-inner img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* FAQ 답변 본문의 표는 모바일에서 가로 스크롤 폴백. */
.aux-faq-answer-inner table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-collapse: collapse;
    margin: 10px 0;
}

.aux-faq-answer-inner th,
.aux-faq-answer-inner td {
    border: 1px solid #e5e7eb;
    padding: 6px 8px;
    word-break: break-word;
}

/* FAQ 답변의 pre/code/iframe 도 좁은 모바일에서 폭 초과를 방지. */
.aux-faq-answer-inner pre {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: pre;
}
.aux-faq-answer-inner code {
    word-break: break-word;
}
.aux-faq-answer-inner iframe,
.aux-faq-answer-inner video {
    max-width: 100%;
    height: auto;
}

.aux-faq-answer-inner p {
    margin: 0 0 12px;
}

.aux-faq-answer-inner p:last-child {
    margin-bottom: 0;
}

.aux-form {
    padding: 24px;
}

.aux-form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

.aux-field label {
    display: block;
    margin-bottom: 8px;
    color: #111827;
    font-size: 14px;
    font-weight: 800;
}

.aux-required {
    color: var(--color-danger);
}

.aux-textarea {
    min-height: 260px;
    resize: vertical;
}

.aux-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 22px;
}

@media (max-width: 980px) {
    .aux-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .aux-shell {
        /* mypage(.mypage-shell 90px) 와 통일 — consult-fab 마지막 row 가림 회피 */
        padding: 20px 14px 90px;
    }
    .aux-topbar {
        align-items: flex-start;
        flex-direction: column;
    }
    .aux-actions {
        width: 100%;
        justify-content: flex-start;
    }
    .aux-title {
        font-size: 26px;
    }
    .aux-panel-header,
    .aux-row,
    .aux-article,
    .aux-form {
        padding-left: 16px;
        padding-right: 16px;
    }
    .aux-filter {
        padding-left: 16px;
        padding-right: 16px;
    }
    .aux-row {
        grid-template-columns: 1fr;
    }
    .aux-search {
        grid-template-columns: 1fr;
    }
    .aux-icon-button {
        width: 100%;
    }
    .aux-faq-question {
        padding-left: 16px;
        padding-right: 16px;
    }
    .aux-faq-answer-inner {
        padding-left: 56px;
        padding-right: 16px;
    }
    .aux-article-title {
        font-size: 22px;
    }
    .aux-form-actions {
        flex-direction: column-reverse;
    }
    .aux-form-actions .btn {
        width: 100%;
    }
}