/* ==========================================================================
   Books Catalog — Modern Reading Studio Design System

   Aesthetic: Clean, intelligent, contemporary. Inspired by Linear, Arc, Raycast.
   Color palette: Cool slate neutrals + vibrant indigo accent.
   Typography: Geometric sans (Inter) for UI + serif (Lora) for book titles.
   AI features get a distinctive gradient treatment to signal intelligence.
   ========================================================================== */

/* --- Bootstrap Icons font-display override ---
   The CDN stylesheet omits font-display, causing invisible icon text
   during load. This override adds swap to prevent FOIT. */
@font-face {
    font-family: 'bootstrap-icons';
    font-display: swap;
    src: url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/fonts/bootstrap-icons.woff2?dd67030699838ea613ee6dbda90effa6') format('woff2');
}

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Palette — cool slate + indigo */
    --color-bg:          #f8fafc;
    --color-bg-card:     #ffffff;
    --color-bg-subtle:   #f1f5f9;
    --color-ink:         #0f172a;
    --color-ink-light:   #475569;
    --color-ink-muted:   #64748b;
    --color-accent:      #4f46e5;
    --color-accent-hover:#4338ca;
    --color-border:      #e2e8f0;
    --color-border-focus:#4f46e5;
    --color-success:     #059669;
    --color-danger:      #dc2626;
    --color-warning-star:#d97706;

    /* AI feature gradient tokens */
    --color-ai-from:     #4f46e5;
    --color-ai-to:       #7c3aed;
    --color-ai-bg:       linear-gradient(135deg, rgba(79, 70, 229, 0.04), rgba(124, 58, 237, 0.06));
    --color-ai-border:   rgba(79, 70, 229, 0.15);
    --color-ai-glow:     0 0 20px rgba(79, 70, 229, 0.08);

    /* Typography */
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body:    'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif:   'Lora', Georgia, 'Times New Roman', serif;
    --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;

    /* Shadows */
    --shadow-sm:  0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md:  0 4px 12px rgba(15, 23, 42, 0.07);
    --shadow-lg:  0 8px 24px rgba(15, 23, 42, 0.1);
    --shadow-hover: 0 8px 24px rgba(15, 23, 42, 0.12);

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* --- Dark mode overrides --- */
[data-bs-theme="dark"] {
    --color-bg:          #0f172a;
    --color-bg-card:     #1e293b;
    --color-bg-subtle:   #334155;
    --color-ink:         #f1f5f9;
    --color-ink-light:   #cbd5e1;
    --color-ink-muted:   #94a3b8;
    --color-accent:      #818cf8;
    --color-accent-hover:#a5b4fc;
    --color-border:      #334155;
    --color-border-focus:#818cf8;
    --color-success:     #34d399;
    --color-danger:      #f87171;
    --color-warning-star:#fbbf24;

    --color-ai-from:     #818cf8;
    --color-ai-to:       #a78bfa;
    --color-ai-bg:       linear-gradient(135deg, rgba(129, 140, 248, 0.08), rgba(167, 139, 250, 0.1));
    --color-ai-border:   rgba(129, 140, 248, 0.2);
    --color-ai-glow:     0 0 24px rgba(129, 140, 248, 0.12);

    --shadow-sm:  0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* Bootstrap component overrides for dark mode */
[data-bs-theme="dark"] .badge.bg-light {
    background-color: var(--color-bg-subtle) !important;
    color: var(--color-ink) !important;
    border-color: var(--color-border) !important;
}

[data-bs-theme="dark"] .table {
    --bs-table-bg: var(--color-bg-card);
    --bs-table-color: var(--color-ink);
    --bs-table-hover-bg: var(--color-bg-subtle);
    --bs-table-border-color: var(--color-border);
}

[data-bs-theme="dark"] .modal-content {
    background-color: var(--color-bg-card);
    color: var(--color-ink);
    border-color: var(--color-border);
}

[data-bs-theme="dark"] .input-group-text {
    background-color: var(--color-bg-subtle);
    color: var(--color-ink-muted);
    border-color: var(--color-border);
}

[data-bs-theme="dark"] .progress {
    background-color: var(--color-bg-subtle);
    border-color: var(--color-border);
}

/* Dark mode theme toggle button */
.bc-theme-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-ink-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.bc-theme-toggle:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* --- Base Reset & Body --- */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    height: 100%;
    scroll-behavior: smooth;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--color-ink);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-ink);
    letter-spacing: -0.01em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

@media (min-width: 768px) {
    h1 { font-size: 3.25rem; }
    h2 { font-size: 2.5rem; }
}

p {
    color: var(--color-ink-light);
    margin-bottom: var(--space-md);
}

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

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

/* Book title typography — serif for literary character */
.bc-book-title {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* Subtle decorative line used as section divider */
.divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    border: none;
    margin: var(--space-lg) 0;
    border-radius: 2px;
}

/* --- Skip to content (accessibility) --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    background: var(--color-accent);
    color: #fff;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    z-index: 9999;
    font-weight: 600;
}

.skip-link:focus {
    top: var(--space-md);
    color: #fff;
}

/* --- Navbar --- */
.bc-navbar {
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-sm);
}

.bc-navbar .navbar-brand {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-ink);
    letter-spacing: -0.02em;
}

.bc-navbar .navbar-brand i {
    color: var(--color-accent);
    margin-right: var(--space-xs);
}

.bc-navbar .nav-link {
    font-weight: 500;
    color: var(--color-ink-light);
    padding: var(--space-sm) var(--space-md) !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.95rem;
}

.bc-navbar .nav-link:hover,
.bc-navbar .nav-link.active {
    color: var(--color-accent);
    background: var(--color-bg-subtle);
}

.bc-navbar .avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--color-border);
    transition: border-color var(--transition-fast);
}

.bc-navbar .avatar:hover {
    border-color: var(--color-accent);
}

/* --- Buttons --- */
.btn-accent {
    background: var(--color-accent);
    color: #fff;
    border: 1px solid var(--color-accent);
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-lg);
    transition: all var(--transition-fast);
}

.btn-accent:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.btn-outline-accent {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    font-weight: 600;
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-lg);
    transition: all var(--transition-fast);
}

.btn-outline-accent:hover {
    background: var(--color-accent);
    color: #fff;
}

/* --- Cards --- */
.bc-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base), border-color var(--transition-base);
    overflow: hidden;
}

.bc-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.bc-card .card-body {
    padding: var(--space-lg);
}

/* --- AI-powered feature cards --- */
.bc-ai-card {
    background: var(--color-ai-bg);
    border: 1px solid var(--color-ai-border);
    border-radius: var(--radius-md);
    box-shadow: var(--color-ai-glow);
    overflow: hidden;
    position: relative;
}

.bc-ai-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-ai-from), var(--color-ai-to));
}

.bc-ai-card .card-body {
    padding: var(--space-lg);
}

.bc-ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25em 0.6em;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-ai-from), var(--color-ai-to));
    color: #fff;
}

/* --- Book cover images --- */
.book-cover {
    aspect-ratio: 2 / 3;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.book-cover:hover {
    transform: scale(1.03);
}

.book-cover-sm {
    width: 80px;
    aspect-ratio: 2 / 3;
    object-fit: cover;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

/* --- Rating stars --- */
.rating-stars .bi {
    font-size: 1rem;
}

.text-warning {
    color: var(--color-warning-star) !important;
}

/* --- Forms --- */
.bc-form .form-control,
.bc-form .form-select {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.9rem;
    font-size: 0.95rem;
    color: var(--color-ink);
    background-color: var(--color-bg-card);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.bc-form .form-control:focus,
.bc-form .form-select:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
    outline: none;
}

.bc-form .form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.bc-form .form-text {
    color: var(--color-ink-muted);
    font-size: 0.82rem;
}

.bc-form .invalid-feedback,
.bc-form .text-danger {
    color: var(--color-danger);
    font-size: 0.82rem;
}

/* Tom Select overrides */
.ts-wrapper .ts-control {
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.5rem 0.75rem !important;
    background: var(--color-bg-card) !important;
}

.ts-wrapper.focus .ts-control {
    border-color: var(--color-border-focus) !important;
    box-shadow: 0 0 0 3px rgba(192, 115, 58, 0.15) !important;
}

/* --- Auth pages (login, signup, etc.) --- */
.auth-card {
    max-width: 440px;
    margin: var(--space-2xl) auto;
}

.auth-card .bc-card {
    padding: var(--space-xl);
}

.social-divider {
    display: flex;
    align-items: center;
    margin: var(--space-lg) 0;
    color: var(--color-ink-muted);
    font-size: 0.85rem;
}

.social-divider::before,
.social-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.social-divider span {
    padding: 0 var(--space-md);
}

/* --- Hero section --- */
.bc-hero {
    padding: var(--space-2xl) 0;
}

.bc-hero h1 {
    font-size: 2.75rem;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

@media (min-width: 768px) {
    .bc-hero h1 {
        font-size: 3.75rem;
    }
}

.bc-hero p {
    font-size: 1.15rem;
    max-width: 540px;
}

/* --- Stats cards (dashboard) --- */
.stat-card {
    text-align: center;
    padding: var(--space-lg);
}

.stat-card .stat-value {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-card .stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-ink-muted);
}

/* Compact stat cards (6-column row) */
.stat-card-compact {
    text-align: center;
    padding: var(--space-md) var(--space-sm);
}

.stat-card-compact .stat-value-compact {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.stat-card-compact .stat-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-ink-muted);
}

/* --- Chart containers --- */
.chart-card {
    padding: var(--space-lg);
}

.chart-card-header {
    margin-bottom: var(--space-md);
}

.chart-card-header h3 {
    font-size: 1rem;
    margin-bottom: 0.15rem;
    color: var(--color-ink);
}

.chart-card-header p {
    font-size: 0.82rem;
    color: var(--color-ink-muted);
    margin-bottom: 0;
}

.chart-card canvas {
    width: 100% !important;
    height: auto !important;
}

/* Currently reading covers in dashboard */
.currently-reading-cover {
    width: 40px;
    height: 60px;
    object-fit: cover;
    border-radius: 3px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.currently-reading-cover-placeholder {
    width: 40px;
    height: 60px;
    background: var(--color-bg-subtle);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* --- Footer --- */
.bc-footer {
    background: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    padding: var(--space-lg) 0;
    flex-shrink: 0;
    margin-top: var(--space-2xl);
}

.bc-footer a {
    color: var(--color-ink-muted);
    font-size: 0.85rem;
}

.bc-footer a:hover {
    color: var(--color-accent);
}

.bc-footer .text-muted {
    font-size: 0.82rem;
    color: var(--color-ink-muted) !important;
}

/* --- Messages / Alerts --- */
.bc-alert {
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
    color: var(--color-ink);
    padding: var(--space-md) var(--space-lg);
}

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

.empty-state img {
    max-width: 280px;
    margin-bottom: var(--space-xl);
    opacity: 0.85;
}

/* --- Simple-DataTables overrides --- */
.dataTable-wrapper {
    font-size: 0.9rem;
}

.dataTable-wrapper .dataTable-table {
    border-collapse: collapse;
}

.dataTable-wrapper .dataTable-table th {
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-muted);
    border-bottom: 2px solid var(--color-border);
    padding: var(--space-sm) var(--space-md);
}

.dataTable-wrapper .dataTable-table td {
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
}

.dataTable-wrapper .dataTable-input,
.dataTable-wrapper .dataTable-selector {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
}

/* --- Page-level animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-in-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-in-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-in-delay-3 { animation-delay: 0.3s; opacity: 0; }

/* --- Responsive utilities --- */
@media (max-width: 767.98px) {
    .bc-hero {
        text-align: center;
        padding: var(--space-xl) 0;
    }

    .bc-hero p {
        margin-left: auto;
        margin-right: auto;
    }

    .stat-card .stat-value {
        font-size: 1.75rem;
    }
}

/* --- Book detail layout --- */
.book-detail-cover {
    max-width: 220px;
}

@media (min-width: 768px) {
    .book-detail-cover {
        max-width: 280px;
    }
}

/* --- Status badges --- */
.bc-status-badge {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.3em 0.7em;
    border-radius: var(--radius-sm);
}

.bc-status-to_read {
    background: rgba(79, 70, 229, 0.1);
    color: #4f46e5;
}

.bc-status-reading {
    background: rgba(217, 119, 6, 0.1);
    color: #b45309;
}

.bc-status-finished {
    background: rgba(5, 150, 105, 0.1);
    color: #059669;
}

.bc-status-abandoned {
    background: rgba(100, 116, 139, 0.1);
    color: #64748b;
}

/* Dark mode status badge overrides */
[data-bs-theme="dark"] .bc-status-to_read {
    background: rgba(129, 140, 248, 0.15);
    color: #a5b4fc;
}

[data-bs-theme="dark"] .bc-status-reading {
    background: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
}

[data-bs-theme="dark"] .bc-status-finished {
    background: rgba(52, 211, 153, 0.15);
    color: #34d399;
}

[data-bs-theme="dark"] .bc-status-abandoned {
    background: rgba(100, 116, 139, 0.2);
    color: #94a3b8;
}

/* --- Status filter tabs --- */
.bc-status-tabs {
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.bc-status-tabs .nav-link {
    color: var(--color-ink-light);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
}

.bc-status-tabs .nav-link:hover {
    background: var(--color-bg-subtle);
    color: var(--color-ink);
}

.bc-status-tabs .nav-link.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

/* --- Book search results (Smart Add) --- */
.book-search-thumb {
    width: 45px;
    height: 65px;
    object-fit: cover;
    border-radius: 3px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.book-search-thumb-placeholder {
    width: 45px;
    height: 65px;
    background: var(--color-bg-subtle);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-ink-muted);
}

.book-search-result {
    border-left: 3px solid transparent !important;
    transition: border-color var(--transition-fast);
}

.book-search-result:hover {
    border-left-color: var(--color-accent) !important;
    background: var(--color-bg-subtle) !important;
}

/* --- Progress bar (reading goal) --- */
.progress {
    background-color: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
}

.progress-bar {
    transition: width 0.6s ease;
    border-radius: 6px;
}

/* --- Quill editor overrides --- */
.bc-quill-editor {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    min-height: 120px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-ink);
}

.bc-quill-editor .ql-editor {
    min-height: 120px;
    max-height: 400px;
    overflow-y: auto;
}

.bc-quill-editor .ql-editor.ql-blank::before {
    color: var(--color-ink-muted);
    font-style: normal;
}

.ql-toolbar.ql-snow {
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0 !important;
    background: var(--color-bg-subtle);
}

.ql-container.ql-snow {
    border: 1px solid var(--color-border) !important;
    border-top: none !important;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm) !important;
}

/* Rich content display (book detail page) */
.bc-rich-content {
    line-height: 1.7;
    color: var(--color-ink-light);
}

.bc-rich-content p {
    margin-bottom: 0.5rem;
}

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

.bc-rich-content ul,
.bc-rich-content ol {
    padding-left: 1.5rem;
}

.bc-rich-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-md);
    color: var(--color-ink-muted);
    font-style: italic;
}

/* --- Reader DNA insights --- */
.bc-reader-dna-content h3 {
    font-size: 1.2rem;
    margin-top: var(--space-xl);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--color-border);
    background: linear-gradient(90deg, var(--color-ai-from), var(--color-ai-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bc-reader-dna-content h3:first-child {
    margin-top: 0;
}

.bc-reader-dna-content p {
    line-height: 1.75;
}

.bc-reader-dna-content ul {
    padding-left: 1.5rem;
}

.bc-reader-dna-content li {
    margin-bottom: var(--space-xs);
    color: var(--color-ink-light);
}

.bc-reader-dna-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.bc-reader-dna-content a:hover {
    color: var(--color-accent-hover);
}

/* --- Smart TBR --- */
.bc-smart-tbr-content .tbr-pick {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.bc-smart-tbr-content .tbr-pick:last-of-type {
    border-bottom: none;
}

.bc-smart-tbr-content .tbr-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: var(--color-accent);
    color: #fff;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    margin-right: var(--space-sm);
}

.bc-smart-tbr-content h4 {
    font-size: 1.05rem;
    margin-bottom: var(--space-xs);
}

.bc-smart-tbr-content .tbr-reason {
    color: var(--color-ink-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.bc-smart-tbr-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

/* --- Review Assistant --- */
.bc-review-assistant-content h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
}

.bc-review-assistant-content .review-prompts {
    list-style: none;
    padding: 0;
}

.bc-review-assistant-content .review-prompts li {
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
    background: var(--color-bg-subtle);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
    color: var(--color-ink-light);
    line-height: 1.6;
}

.bc-review-assistant-content .review-hint {
    color: var(--color-ink-muted);
    font-size: 0.9rem;
    font-style: italic;
    margin-top: var(--space-md);
}

/* --- Voice dictation button --- */
.bc-voice-btn.btn-danger {
    animation: pulse-recording 1.5s ease-in-out infinite;
}

@keyframes pulse-recording {
    0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(220, 38, 38, 0); }
}

/* --- AI loading skeleton --- */
.bc-ai-loading {
    padding: var(--space-xl) var(--space-lg);
}

.bc-skeleton {
    background: linear-gradient(90deg,
        var(--color-bg-subtle) 25%,
        var(--color-bg-card) 50%,
        var(--color-bg-subtle) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

.bc-skeleton-line {
    height: 14px;
    margin-bottom: var(--space-sm);
}

.bc-skeleton-line-short { width: 60%; }
.bc-skeleton-line-medium { width: 80%; }
.bc-skeleton-line-long { width: 95%; }

.bc-skeleton-heading {
    height: 22px;
    width: 40%;
    margin-bottom: var(--space-md);
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.bc-ai-loading-text {
    text-align: center;
    color: var(--color-ink-muted);
    font-size: 0.9rem;
    margin-top: var(--space-md);
}

/* --- Profile --- */
.profile-avatar-lg {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--color-border);
}

/* --- Gradient text utility (for AI headings) --- */
.bc-gradient-text {
    background: linear-gradient(135deg, var(--color-ai-from), var(--color-ai-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}