/* ── Reading Comprehension Activity Styles ──
   Neuro-inclusive design: minimal UI, muted colors, generous spacing,
   configurable typography, eye-guiding gradients, sensory-safe animations.
   ─────────────────────────────────────────────────────────────────────── */

/* ── Variables ── */
:root {
    --rd-primary: #1d9a8a;
    --rd-primary-light: rgba(29, 154, 138, 0.12);
    --rd-primary-dark: #0f5c52;
    --rd-accent: #6a60f0;
    --rd-text: #15212e;
    --rd-text-muted: #5b6875;
    --rd-bg: #f8fbfa;
    --rd-surface: #ffffff;
    --rd-border: #e3ecea;
    --rd-success: #25b581;
    --rd-warning: #ffc107;
    --rd-error: #ef4444;
    --rd-radius: 18px;
    --rd-radius-sm: 12px;
    --rd-shadow: 0 8px 32px rgba(18, 51, 63, 0.10);
    --rd-shadow-hover: 0 12px 40px rgba(18, 51, 63, 0.15);
    --rd-font: 'Poppins', sans-serif;
    --rd-transition: 0.25s ease;
}

/* ── Theme: Muted ── */
.reading-wrapper[data-theme="muted"],
.reading-library-wrap[data-theme="muted"] {
    --rd-bg: #faf5ef;
    --rd-surface: #fdf8f2;
    --rd-border: #e8ddd0;
    --rd-text: #2c2418;
}

/* ── Theme: Dark ── */
.reading-wrapper[data-theme="dark"],
.reading-library-wrap[data-theme="dark"] {
    --rd-bg: #1a1f2e;
    --rd-surface: #232838;
    --rd-border: #3a3f50;
    --rd-text: #e0e4ea;
    --rd-text-muted: #9aa0ae;
}

/* ── Reduce Motion ── */
.reading-wrapper[data-reduce-motion="true"] *,
.reading-wrapper[data-reduce-motion="true"] *::before,
.reading-wrapper[data-reduce-motion="true"] *::after {
    animation-duration: 0s !important;
    transition-duration: 0s !important;
}


/* ═══════════════════════════════════════════════════════════════
   TOPBAR
   ═══════════════════════════════════════════════════════════════ */

.reading-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: linear-gradient(120deg, rgba(29,154,138,0.95), rgba(106,96,240,0.9));
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.reading-topbar-back {
    color: #fff;
    font-size: 1.1rem;
    text-decoration: none;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--rd-transition);
}
.reading-topbar-back:hover { background: rgba(255,255,255,0.15); }

.reading-topbar-center {
    flex: 1;
    min-width: 0;
}

.reading-topbar-title {
    font-weight: 700;
    font-size: 1rem;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.reading-topbar-page {
    font-size: 0.78rem;
    opacity: 0.85;
}

.reading-topbar-actions {
    display: flex;
    gap: 8px;
}

.reading-topbar-btn {
    background: rgba(255,255,255,0.15);
    border: none;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: background var(--rd-transition);
    text-decoration: none;
}
.reading-topbar-btn:hover { background: rgba(255,255,255,0.25); }
.reading-topbar-btn--staff {
    background: rgba(255,193,7,0.35);
    border-radius: 20px;
    width: auto;
    padding: 0 14px;
    gap: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.2px;
}
.reading-topbar-btn--staff:hover { background: rgba(255,193,7,0.55); }
.reading-topbar-btn-label { white-space: nowrap; }


/* ═══════════════════════════════════════════════════════════════
   LIBRARY (PAGE 1)
   ═══════════════════════════════════════════════════════════════ */

.reading-library-wrap {
    min-height: 100vh;
    background: var(--rd-bg);
    font-family: var(--rd-font);
}

.reading-library-header {
    text-align: center;
    padding: 2.2rem 1rem 1.4rem;
}
.reading-library-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--rd-text);
    margin-bottom: 0.4rem;
}
.reading-library-header h1 i { color: var(--rd-primary); margin-right: 10px; }
.reading-library-header p {
    color: var(--rd-text-muted);
    font-size: 0.95rem;
}

/* Shared content container for filter + grid */
.reading-library-content {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 20px 2.5rem;
}

.reading-story-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.reading-story-card {
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    border-radius: var(--rd-radius);
    padding: 0;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--rd-text);
    box-shadow: 0 2px 12px rgba(18,51,63,0.06);
    transition: box-shadow var(--rd-transition), transform var(--rd-transition);
    overflow: hidden;
}
.reading-story-card:hover {
    box-shadow: var(--rd-shadow-hover);
    transform: translateY(-3px);
}

.reading-story-cover {
    height: 160px;
    background: linear-gradient(135deg, rgba(29,154,138,0.08), rgba(106,96,240,0.10));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.reading-story-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.reading-story-cover-emoji {
    font-size: 4rem;
    line-height: 1;
}

.reading-story-info {
    padding: 1.1rem 1.25rem 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    flex: 1;
}

.reading-story-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
}

.reading-story-meta {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}
.reading-story-pages {
    font-size: 0.8rem;
    color: var(--rd-text-muted);
    font-weight: 500;
}
.reading-story-difficulty {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 2px 8px;
    border-radius: 999px;
}
.reading-story-difficulty--easy { background: rgba(37,181,129,0.15); color: #198754; }
.reading-story-difficulty--medium { background: rgba(255,193,7,0.15); color: #856404; }
.reading-story-difficulty--challenging { background: rgba(106,96,240,0.15); color: #6a60f0; }

.reading-story-age {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(29,154,138,0.12);
    color: #0f5c52;
}

/* ── Library filter bar ── */
.reading-filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 1.6rem;
    padding: 0.9rem 1.1rem;
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    border-radius: 14px;
    box-shadow: 0 1px 6px rgba(18,51,63,0.05);
}
.reading-filter-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.reading-filter-bar label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--rd-text-muted);
    white-space: nowrap;
}
.reading-filter-bar label i {
    color: var(--rd-primary);
    margin-right: 2px;
}
.reading-filter-select {
    padding: 0.4rem 2rem 0.4rem 0.75rem;
    border: 1px solid var(--rd-border);
    border-radius: 10px;
    background: var(--rd-bg);
    font-size: 0.85rem;
    font-family: var(--rd-font);
    color: var(--rd-text);
    cursor: pointer;
    appearance: auto;
}
.reading-filter-select:focus {
    outline: none;
    border-color: var(--rd-primary);
    box-shadow: 0 0 0 3px rgba(29,154,138,0.15);
}

.reading-story-badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 999px;
}
.reading-story-badge--new {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
}

.reading-story-progress {
    display: flex;
    align-items: center;
    gap: 8px;
}
.reading-story-progress-bar {
    flex: 1;
    height: 6px;
    background: var(--rd-border);
    border-radius: 999px;
    overflow: hidden;
}
.reading-story-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--rd-primary), var(--rd-accent));
    border-radius: 999px;
    transition: width 0.5s ease;
}
.reading-story-progress-label {
    font-size: 0.75rem;
    color: var(--rd-text-muted);
    font-weight: 600;
}

.reading-story-action {
    padding: 0 1.25rem 1.1rem;
}
.reading-story-btn {
    display: block;
    text-align: center;
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
    font-weight: 700;
    font-size: 0.88rem;
    padding: 10px 20px;
    border-radius: 12px;
    transition: transform var(--rd-transition), box-shadow var(--rd-transition), opacity var(--rd-transition);
}
.reading-story-card:hover .reading-story-btn {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(29,154,138,0.3);
}

.reading-library-footer {
    text-align: center;
    padding: 1rem;
}
.reading-progress-link {
    color: var(--rd-primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
}
.reading-progress-link:hover { text-decoration: underline; }

.reading-empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem 1rem;
    color: var(--rd-text-muted);
}
.reading-empty-state h3 { margin: 1rem 0 0.3rem; color: var(--rd-text); }


/* ═══════════════════════════════════════════════════════════════
   READER (PAGE 2-5)
   ═══════════════════════════════════════════════════════════════ */

.reading-wrapper {
    min-height: 100vh;
    background: var(--rd-bg);
    font-family: var(--rd-font);
    display: flex;
    flex-direction: column;
}

.reading-loading {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--rd-text-muted);
}
.reading-loading-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--rd-border);
    border-top-color: var(--rd-primary);
    border-radius: 50%;
    animation: rdSpin 0.8s linear infinite;
}
@keyframes rdSpin { to { transform: rotate(360deg); } }

/* Page View */
.reading-page-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    max-width: 720px;
    margin: 0 auto;
    width: 100%;
}

.reading-page-image {
    border-radius: var(--rd-radius);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    width: 100%;
    background: linear-gradient(135deg, rgba(29,154,138,0.08), rgba(106,96,240,0.10));
    display: flex;
    align-items: center;
    justify-content: center;
}
.reading-page-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.reading-page-text {
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    border-radius: var(--rd-radius);
    padding: 1.5rem;
}
.reading-text-content {
    font-size: 1.2rem;
    line-height: 1.8;
    letter-spacing: 1px;
    color: var(--rd-text);
}

/* Eye-guiding gradient on text lines */
.reading-text-content .rd-line {
    display: block;
    padding: 2px 0;
}
.reading-text-content[data-eyeguide="true"] .rd-line:nth-child(odd) {
    background: linear-gradient(90deg, rgba(29,154,138,0.08), rgba(106,96,240,0.06));
}
.reading-text-content[data-eyeguide="true"] .rd-line:nth-child(even) {
    background: linear-gradient(90deg, rgba(106,96,240,0.06), rgba(29,154,138,0.08));
}

/* Word highlighting during TTS */
.reading-text-content .rd-word {
    transition: background 0.15s ease, color 0.15s ease;
    border-radius: 4px;
    padding: 0 2px;
}
.reading-text-content .rd-word.rd-word--active {
    background: rgba(29, 154, 138, 0.2);
    color: var(--rd-primary-dark);
    font-weight: 600;
}

/* Key word highlighting */
.reading-text-content .rd-keyword {
    border-bottom: 2px dashed var(--rd-primary);
    cursor: help;
}

/* Reading ruler overlay */
.reading-ruler {
    position: fixed;
    left: 0;
    right: 0;
    height: 100vh;
    pointer-events: none;
    z-index: 50;
    display: none;
}
.reading-ruler.active { display: block; }
.reading-ruler-top,
.reading-ruler-bottom {
    position: absolute;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.15);
}
.reading-ruler-top { top: 0; }
.reading-ruler-bottom { bottom: 0; }

/* TTS Controls */
.reading-tts-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
}
.reading-tts-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid var(--rd-border);
    background: var(--rd-surface);
    color: var(--rd-text);
    font-family: var(--rd-font);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-tts-btn:hover {
    border-color: var(--rd-primary);
    color: var(--rd-primary);
    box-shadow: 0 4px 12px rgba(29,154,138,0.15);
}
.reading-tts-btn--listen {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
    border: none;
}
.reading-tts-btn--listen:hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(29,154,138,0.3);
}
.reading-tts-btn--listen.playing {
    animation: rdPulse 1.5s ease-in-out infinite;
}
@keyframes rdPulse {
    0%, 100% { box-shadow: 0 4px 12px rgba(29,154,138,0.2); }
    50% { box-shadow: 0 4px 24px rgba(29,154,138,0.4); }
}

/* Declarative Prompt */
.reading-prompt {
    background: rgba(106, 96, 240, 0.08);
    border: 1px solid rgba(106, 96, 240, 0.15);
    border-radius: var(--rd-radius-sm);
    padding: 1rem 1.2rem;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.reading-prompt i {
    color: var(--rd-accent);
    font-size: 1.1rem;
    margin-top: 2px;
}
.reading-prompt p {
    margin: 0;
    color: var(--rd-text);
    font-size: 0.95rem;
    line-height: 1.5;
    font-style: italic;
}


/* ═══════════════════════════════════════════════════════════════
   Q&A (PAGE 4)
   ═══════════════════════════════════════════════════════════════ */

.reading-qa-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 20px 16px;
    max-width: 720px;
    margin: 0 auto;
    width: 100%;
}

.reading-qa-prompt {
    background: rgba(106, 96, 240, 0.08);
    border: 1px solid rgba(106, 96, 240, 0.15);
    border-radius: var(--rd-radius);
    padding: 1.5rem;
    text-align: center;
}
.reading-qa-prompt i {
    font-size: 1.8rem;
    color: var(--rd-accent);
    margin-bottom: 8px;
    display: block;
}
.reading-qa-prompt p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--rd-text);
    font-style: italic;
    margin: 0;
}
.reading-qa-listen-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 8px 16px;
    border: 1px solid rgba(106, 96, 240, 0.25);
    border-radius: 999px;
    background: #ffffff;
    color: var(--rd-accent);
    font-family: var(--rd-font);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-qa-listen-btn:hover {
    background: var(--rd-accent);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(106, 96, 240, 0.25);
}
.reading-qa-listen-btn i { font-size: 0.95rem; }

.reading-qa-modes {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}
.reading-qa-mode {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 14px 20px;
    border: 2px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    background: var(--rd-surface);
    cursor: pointer;
    font-family: var(--rd-font);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--rd-text-muted);
    transition: all var(--rd-transition);
    min-width: 100px;
}
.reading-qa-mode i { font-size: 1.3rem; }
.reading-qa-mode:hover,
.reading-qa-mode.active {
    border-color: var(--rd-primary);
    color: var(--rd-primary);
    background: var(--rd-primary-light);
}

/* Choice board */
.reading-qa-choices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}
.reading-qa-choice {
    position: relative;
    background: var(--rd-surface);
    border: 2px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-qa-choice-listen {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1px solid rgba(29, 154, 138, 0.25);
    background: #ffffff;
    color: var(--rd-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    padding: 0;
    box-shadow: 0 2px 6px rgba(29, 154, 138, 0.12);
    transition: all var(--rd-transition);
    z-index: 2;
}
.reading-qa-choice-listen:hover {
    background: var(--rd-primary);
    color: #ffffff;
    transform: scale(1.08);
}
.reading-qa-choice:hover {
    border-color: var(--rd-primary);
    transform: translateY(-2px);
    box-shadow: var(--rd-shadow);
}
.reading-qa-choice.selected {
    border-color: var(--rd-primary);
    background: var(--rd-primary-light);
}
.reading-qa-choice.correct {
    border-color: var(--rd-success);
    background: rgba(37,181,129,0.1);
}
.reading-qa-choice.incorrect {
    border-color: var(--rd-error);
    background: rgba(239,68,68,0.06);
}
.reading-qa-choice-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 8px;
}
.reading-qa-choice-emoji {
    font-size: 2.5rem;
    margin-bottom: 8px;
    display: block;
}
.reading-qa-choice-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--rd-text);
}

/* Text input */
.reading-qa-text-input {
    display: flex;
    gap: 8px;
}
.reading-qa-field {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--rd-border);
    border-radius: 14px;
    font-family: var(--rd-font);
    font-size: 1rem;
    background: var(--rd-bg);
    color: var(--rd-text);
}
.reading-qa-field:focus {
    outline: none;
    border-color: var(--rd-primary);
    box-shadow: 0 0 0 4px rgba(29,154,138,0.15);
}
.reading-qa-submit {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    border: none;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform var(--rd-transition);
}
.reading-qa-submit:hover { transform: scale(1.05); }

/* Voice input */
.reading-qa-voice {
    text-align: center;
}
.reading-qa-mic {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-qa-mic:hover { transform: scale(1.05); }
.reading-qa-mic.listening {
    animation: rdPulse 1s ease-in-out infinite;
}
.reading-qa-mic-status {
    color: var(--rd-text-muted);
    font-size: 0.85rem;
    margin-top: 8px;
}

/* Hint */
.reading-qa-hint { text-align: center; }
.reading-qa-hint-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: 1px solid rgba(255,193,7,0.4);
    border-radius: 999px;
    background: rgba(255,193,7,0.1);
    color: #856404;
    font-family: var(--rd-font);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-qa-hint-btn:hover {
    background: rgba(255,193,7,0.2);
}
.reading-qa-hint-text {
    margin-top: 8px;
    padding: 10px 16px;
    background: rgba(255,193,7,0.08);
    border-radius: var(--rd-radius-sm);
    color: #856404;
    font-size: 0.9rem;
}

/* Feedback */
.reading-qa-feedback {
    text-align: center;
    padding: 1.2rem;
    border-radius: var(--rd-radius-sm);
    animation: rdFadeUp 0.3s ease;
}
.reading-qa-feedback.correct {
    background: rgba(37,181,129,0.1);
    border: 1px solid rgba(37,181,129,0.2);
}
.reading-qa-feedback.retry {
    background: rgba(106,96,240,0.08);
    border: 1px solid rgba(106,96,240,0.15);
}
.reading-qa-feedback i { font-size: 1.5rem; margin-bottom: 6px; display: block; }
.reading-qa-feedback.correct i { color: var(--rd-success); }
.reading-qa-feedback.retry i { color: var(--rd-accent); }
.reading-qa-feedback p { margin: 0; font-size: 0.95rem; }

@keyframes rdFadeUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}


/* ═══════════════════════════════════════════════════════════════
   SESSION COMPLETE (PAGE 5)
   ═══════════════════════════════════════════════════════════════ */

.reading-complete-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    text-align: center;
    gap: 20px;
}

.reading-complete-star {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #ffc107, #ff9800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
    animation: rdStarPop 0.5s ease;
}
@keyframes rdStarPop {
    0% { transform: scale(0); }
    60% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.reading-complete-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--rd-text);
    margin: 0;
}

.reading-complete-stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}
.reading-complete-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 70px;
}
.reading-complete-num {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--rd-primary);
}
.reading-complete-label {
    font-size: 0.75rem;
    color: var(--rd-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.reading-reflection {
    width: 100%;
    max-width: 400px;
}
.reading-reflection-label {
    font-size: 0.95rem;
    color: var(--rd-text);
    margin-bottom: 12px;
    font-weight: 600;
}
.reading-reflection-emojis {
    display: flex;
    justify-content: center;
    gap: 12px;
}
.reading-reflection-emoji {
    background: var(--rd-surface);
    border: 2px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    padding: 10px 14px;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--rd-transition);
    font-family: var(--rd-font);
    line-height: 1.2;
}
.reading-reflection-emoji span {
    display: block;
    font-size: 0.7rem;
    color: var(--rd-text-muted);
    margin-top: 4px;
}
.reading-reflection-emoji:hover,
.reading-reflection-emoji.selected {
    border-color: var(--rd-primary);
    background: var(--rd-primary-light);
    transform: translateY(-2px);
}

.reading-complete-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}


/* ═══════════════════════════════════════════════════════════════
   BOTTOM BAR / NAV
   ═══════════════════════════════════════════════════════════════ */

.reading-bottom-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: var(--rd-surface);
    border-top: 1px solid var(--rd-border);
    position: sticky;
    bottom: 0;
    z-index: 100;
}
/* On mobile, push above the fixed bottom nav bar */
@media (max-width: 768px) {
    .reading-bottom-bar {
        padding-bottom: calc(12px + 64px + env(safe-area-inset-bottom, 0px));
    }
}

.reading-nav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid var(--rd-border);
    background: var(--rd-surface);
    font-family: var(--rd-font);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--rd-text);
    cursor: pointer;
    transition: all var(--rd-transition);
}
.reading-nav-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.reading-nav-btn:not(:disabled):hover {
    border-color: var(--rd-primary);
    color: var(--rd-primary);
}
.reading-nav-btn--next {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
    border: none;
}
.reading-nav-btn--next:not(:disabled):hover {
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(29,154,138,0.25);
}

.reading-progress-dots {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}
.reading-progress-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--rd-border);
    transition: all var(--rd-transition);
}
.reading-progress-dot.completed { background: var(--rd-primary); }
.reading-progress-dot.current {
    background: var(--rd-accent);
    transform: scale(1.3);
}
.reading-progress-dot.qa { background: var(--rd-warning); }


/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */

.reading-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 999px;
    font-family: var(--rd-font);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--rd-transition);
    border: none;
}
.reading-btn--primary {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
}
.reading-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(29,154,138,0.25);
}
.reading-btn--outline {
    background: transparent;
    color: var(--rd-primary);
    border: 1px solid rgba(29,154,138,0.3);
}
.reading-btn--outline:hover {
    background: var(--rd-primary-light);
}


/* ═══════════════════════════════════════════════════════════════
   SETTINGS OVERLAY
   ═══════════════════════════════════════════════════════════════ */

.reading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: rdFadeIn 0.2s ease;
}
@keyframes rdFadeIn { from { opacity: 0; } }

.reading-overlay-panel {
    background: var(--rd-surface);
    border-radius: 22px;
    width: 90%;
    max-width: 480px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 24px 80px rgba(0,0,0,0.18);
    animation: rdSlideUp 0.3s ease;
}
@keyframes rdSlideUp {
    from { transform: translateY(16px) scale(0.97); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

.reading-overlay-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.2rem 1.5rem;
    border-bottom: 1px solid var(--rd-border);
}
.reading-overlay-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}
.reading-overlay-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--rd-primary-light);
    color: var(--rd-primary);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reading-overlay-body {
    padding: 1.2rem 1.5rem;
}

.reading-settings-group {
    margin-bottom: 1.2rem;
}
.reading-settings-group h4 {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--rd-text-muted);
    margin-bottom: 10px;
}

.reading-setting {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}
.reading-setting span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--rd-text);
}
.reading-setting select {
    padding: 6px 10px;
    border: 1px solid var(--rd-border);
    border-radius: 8px;
    font-family: var(--rd-font);
    font-size: 0.85rem;
    background: var(--rd-bg);
    color: var(--rd-text);
}
.reading-setting input[type="checkbox"] {
    width: 40px;
    height: 22px;
    appearance: none;
    background: var(--rd-border);
    border-radius: 999px;
    position: relative;
    cursor: pointer;
    transition: background var(--rd-transition);
}
.reading-setting input[type="checkbox"]::after {
    content: '';
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform var(--rd-transition);
}
.reading-setting input[type="checkbox"]:checked {
    background: var(--rd-primary);
}
.reading-setting input[type="checkbox"]:checked::after {
    transform: translateX(18px);
}


/* ═══════════════════════════════════════════════════════════════
   PROGRESS PAGE
   ═══════════════════════════════════════════════════════════════ */

.reading-progress-wrap {
    padding: 1.5rem 1rem;
    max-width: 720px;
    margin: 0 auto;
}
.reading-progress-wrap h2 {
    font-size: 1.2rem;
    color: var(--rd-text);
    margin-bottom: 1rem;
}
.reading-progress-wrap h2 i { color: var(--rd-primary); margin-right: 8px; }

.reading-sessions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.reading-session-row {
    background: var(--rd-surface);
    border: 1px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.reading-session-info h4 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
}
.reading-session-date {
    font-size: 0.78rem;
    color: var(--rd-text-muted);
}
.reading-session-stats {
    display: flex;
    gap: 14px;
    font-size: 0.82rem;
    color: var(--rd-text-muted);
}
.reading-session-stats i { color: var(--rd-primary); margin-right: 3px; }


/* ═══════════════════════════════════════════════════════════════
   BACKOFFICE (STAFF)
   ═══════════════════════════════════════════════════════════════ */

.bo-wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
    font-family: 'Poppins', sans-serif;
}
.bo-wrap--wide { max-width: 1100px; }

.bo-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--rd-primary);
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    margin-bottom: 1rem;
}
.bo-back-link:hover { text-decoration: underline; }

.bo-header {
    margin-bottom: 1.5rem;
}
.bo-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--rd-text);
    display: inline;
}
.bo-header h1 i { color: var(--rd-primary); }
.bo-header p {
    color: var(--rd-text-muted);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}
.bo-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.bo-staff-badge {
    display: inline-block;
    background: rgba(239,68,68,0.12);
    color: #dc2626;
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    margin-left: 8px;
    vertical-align: middle;
}

.bo-actions-bar {
    margin-bottom: 1rem;
}

/* Story List */
.bo-story-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.bo-story-card {
    background: #fff;
    border: 1px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.bo-story-cover {
    width: 56px;
    height: 56px;
    background: var(--rd-primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}
.bo-story-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bo-story-emoji { font-size: 1.5rem; }

.bo-story-info {
    flex: 1;
    min-width: 200px;
}
.bo-story-info h3 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0 0 4px;
}
.bo-story-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.bo-meta-item {
    font-size: 0.78rem;
    color: var(--rd-text-muted);
}
.bo-meta-badge {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.bo-meta-badge--easy { background: rgba(37,181,129,0.12); color: #198754; }
.bo-meta-badge--medium { background: rgba(255,193,7,0.15); color: #856404; }
.bo-meta-badge--challenging { background: rgba(106,96,240,0.12); color: #6a60f0; }
.bo-meta-badge--published { background: rgba(37,181,129,0.12); color: #198754; }
.bo-meta-badge--draft { background: rgba(108,117,125,0.12); color: #6c757d; }

.bo-story-dates {
    font-size: 0.72rem;
    color: var(--rd-text-muted);
    display: flex;
    gap: 12px;
    margin-top: 4px;
}

.bo-story-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.bo-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--rd-border);
    background: #fff;
    color: var(--rd-text);
    font-family: var(--rd-font);
    font-size: 0.78rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--rd-transition);
}
.bo-action-btn:hover {
    border-color: var(--rd-primary);
    color: var(--rd-primary);
}
.bo-action-btn--publish { border-style: dashed; }

/* Buttons */
.bo-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 999px;
    font-family: var(--rd-font);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--rd-transition);
    border: none;
    text-decoration: none;
}
.bo-btn--primary {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
}
.bo-btn--primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(29,154,138,0.25);
}
.bo-btn--outline {
    background: transparent;
    color: var(--rd-primary);
    border: 1px solid rgba(29,154,138,0.3);
}
.bo-btn--outline:hover { background: var(--rd-primary-light); }
.bo-btn--sm { padding: 8px 14px; font-size: 0.8rem; }

/* Forms */
.bo-form { }
.bo-form--inline .bo-form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.bo-form-group { margin-bottom: 12px; }
.bo-form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--rd-text);
    margin-bottom: 4px;
}
.bo-form-group--sm { max-width: 140px; }
.bo-form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.bo-form-row .bo-form-group { flex: 1; min-width: 180px; }
.bo-form-actions {
    display: flex;
    gap: 10px;
    margin-top: 1rem;
}

.bo-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--rd-border);
    border-radius: 10px;
    font-family: var(--rd-font);
    font-size: 0.9rem;
    background: #f8fbfa;
    color: var(--rd-text);
    transition: border-color var(--rd-transition);
    box-sizing: border-box;
}
.bo-input:focus {
    outline: none;
    border-color: var(--rd-primary);
    box-shadow: 0 0 0 3px rgba(29,154,138,0.12);
}
.bo-input--emoji { max-width: 80px; font-size: 1.2rem; text-align: center; }
.bo-input--sm { font-size: 0.82rem; padding: 6px 8px; }
.bo-textarea { resize: vertical; min-height: 60px; }
.bo-required { color: var(--rd-error); }
.bo-hint { font-weight: 400; color: var(--rd-text-muted); font-size: 0.78rem; }
.bo-label-sm { font-size: 0.72rem; color: var(--rd-text-muted); display: block; margin-bottom: 2px; }
.bo-thumb { width: 60px; height: 60px; object-fit: cover; border-radius: 8px; margin-top: 6px; }

/* Page Editor */
.bo-section {
    margin-bottom: 2rem;
}
.bo-section h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--rd-text);
    margin-bottom: 1rem;
}
.bo-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}
.bo-section-header h2 { margin-bottom: 0; }

.bo-page-card, .bo-question-card {
    background: #fff;
    border: 1px solid var(--rd-border);
    border-radius: var(--rd-radius-sm);
    margin-bottom: 16px;
    overflow: hidden;
}

.bo-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: #f8fbfa;
    border-bottom: 1px solid var(--rd-border);
}
.bo-page-header h3 {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--rd-primary);
    margin: 0;
}
.bo-page-actions {
    display: flex;
    gap: 4px;
}

.bo-icon-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--rd-border);
    background: #fff;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--rd-text-muted);
    transition: all var(--rd-transition);
}
.bo-icon-btn:hover { border-color: var(--rd-primary); color: var(--rd-primary); }
.bo-icon-btn--danger:hover { border-color: var(--rd-error); color: var(--rd-error); }

.bo-page-body {
    display: flex;
    gap: 16px;
    padding: 16px;
    flex-wrap: wrap;
}
.bo-page-col { flex: 1; min-width: 240px; }
.bo-page-col label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--rd-text);
    margin-bottom: 4px;
    margin-top: 10px;
}
.bo-page-col label:first-child { margin-top: 0; }
.bo-page-preview {
    width: 100%;
    max-height: 120px;
    object-fit: cover;
    border-radius: 8px;
    margin-top: 6px;
}

.bo-tts-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.bo-tts-row > div { flex: 1; min-width: 80px; }

.bo-page-footer, .bo-question-body {
    padding: 12px 16px;
}
.bo-page-footer {
    border-top: 1px solid var(--rd-border);
    background: #f8fbfa;
}

/* ── Guest Expiry Overlay ── */
.reading-guest-expiry {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 10, 20, 0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    animation: fadeIn 0.3s ease;
}
.reading-guest-expiry-panel {
    background: #fff;
    border-radius: 22px;
    padding: 2.5rem 2rem;
    max-width: 440px;
    width: 90%;
    text-align: center;
    box-shadow: 0 24px 80px rgba(0,0,0,0.18);
}
.reading-guest-expiry-emoji {
    font-size: 3rem;
    margin-bottom: 0.8rem;
}
.reading-guest-expiry-panel h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #15212e;
    margin: 0 0 0.6rem;
}
.reading-guest-expiry-panel p {
    font-size: 0.92rem;
    color: #5b6875;
    line-height: 1.5;
    margin: 0 0 1.5rem;
}
.reading-guest-expiry-actions {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.reading-guest-expiry-btn {
    display: block;
    padding: 0.75rem 1.2rem;
    border-radius: 14px;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.reading-guest-expiry-btn:hover {
    transform: translateY(-1px);
}
.reading-guest-expiry-btn--primary {
    background: linear-gradient(135deg, #1d9a8a, #6a60f0);
    color: #fff;
    box-shadow: 0 8px 24px rgba(29,154,138,0.25);
}
.reading-guest-expiry-btn--outline {
    background: transparent;
    color: #1d9a8a;
    border: 1px solid rgba(29,154,138,0.26);
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Choices */
.bo-choices-section {
    margin-top: 12px;
    background: rgba(29,154,138,0.04);
    border: 1px dashed rgba(29,154,138,0.3);
    border-radius: 12px;
    padding: 14px 16px;
}
.bo-choices-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}
.bo-choices-header label {
    font-weight: 700;
    font-size: 0.88rem;
    color: var(--rd-text);
    display: flex;
    align-items: center;
    gap: 6px;
}
.bo-choices-header label i { color: var(--rd-primary); }
.bo-choices-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.bo-choice-item {
    background: #ffffff;
    border: 1px solid var(--rd-border);
    border-radius: 10px;
    padding: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}
.bo-choice-preview {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    background: var(--rd-bg);
    border: 1px solid var(--rd-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.bo-choice-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bo-choice-emoji-preview { font-size: 1.8rem; line-height: 1; }
.bo-choice-no-preview { color: var(--rd-border); font-size: 1.1rem; }
.bo-choice-fields {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.bo-choice-correct {
    flex-shrink: 0;
    font-size: 0.78rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    padding-top: 4px;
}
.bo-choice-correct input[type="radio"] { cursor: pointer; }

/* Toast */
.bo-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 12px 20px;
    border-radius: 12px;
    font-family: var(--rd-font);
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 9999;
    animation: rdFadeUp 0.3s ease;
}
.bo-toast--success { background: #e6f9f0; color: #198754; border: 1px solid #b8e8d4; }
.bo-toast--error { background: #fef2f2; color: #dc2626; border: 1px solid #fca5a5; }

.bo-empty {
    text-align: center;
    padding: 2rem;
    color: var(--rd-text-muted);
}
.bo-empty h3 { margin: 0.8rem 0 0.3rem; color: var(--rd-text); }

/* ── Responsive ── */
@media (max-width: 576px) {
    .reading-library-content { padding: 0 12px 2rem; }
    .reading-filter-bar { gap: 8px; padding: 0.75rem 0.9rem; }
    .reading-story-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .reading-tts-controls {
        flex-wrap: wrap;
    }
    .reading-qa-modes {
        flex-direction: column;
        align-items: stretch;
    }
    .reading-qa-mode {
        flex-direction: row;
        justify-content: center;
    }
    .bo-page-body {
        flex-direction: column;
    }
    .bo-story-card {
        flex-direction: column;
        align-items: stretch;
    }
    .bo-story-actions {
        justify-content: flex-start;
    }
}