:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-hover: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --success: #22c55e;
    --warning: #f59e0b;
    --border: #475569;
    --accent: #8b5cf6;
    --font-display: 'Libre Baskerville', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    font-weight: 400;
}

.container { max-width: 960px; margin: 0 auto; padding: 24px; }

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: color-mix(in oklch, var(--bg-dark) 95%, transparent);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid color-mix(in oklch, var(--border) 50%, transparent);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.logo span { font-weight: 400; font-style: italic; color: var(--text-muted); }

.user-info { display: flex; align-items: center; gap: 12px; }

.btn {
    padding: 8px 18px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s, opacity 0.15s;
    letter-spacing: 0.01em;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-hover); }
.btn-small { padding: 8px 14px; font-size: 0.8rem; }
.btn-success { background: var(--success); color: #0f172a; }
.btn-warning { background: var(--warning); color: #0f172a; }
.btn-accent { background: var(--accent); color: white; }
.btn-accent:hover { background: color-mix(in oklch, var(--accent) 85%, black); }
.btn-danger { background: #dc2626; color: white; }
.btn-danger:hover { background: #b91c1c; }
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* Login */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 85vh;
    padding: 20px;
}

.login-box {
    background: var(--bg-card);
    padding: 48px 40px;
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    border: 1px solid var(--border);
}

.login-box h1 {
    font-family: var(--font-display);
    margin-bottom: 6px;
    color: var(--text);
    font-size: 1.8rem;
    letter-spacing: -0.02em;
}

.login-tagline {
    font-family: var(--font-display);
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 0.95rem;
}

.login-box .btn { width: 100%; padding: 14px; font-size: 1rem; margin-bottom: 12px; }

.login-divider { color: var(--text-muted); margin: 16px 0 0; font-size: 0.8rem; letter-spacing: 0.03em; text-transform: uppercase; }

.passkey-icon { font-size: 2.4rem; margin-bottom: 20px; }

.message { padding: 10px 14px; border-radius: 4px; margin-bottom: 16px; font-size: 0.85rem; }
.message-success { background: color-mix(in oklch, var(--success) 12%, var(--bg-card)); color: var(--success); border: 1px solid color-mix(in oklch, var(--success) 25%, transparent); }
.message-error { background: color-mix(in oklch, #ef4444 12%, var(--bg-card)); color: #ef4444; border: 1px solid color-mix(in oklch, #ef4444 25%, transparent); }

/* Navigation */
.nav-tabs {
    display: flex;
    gap: 2px;
    padding: 0 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.nav-tab {
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s;
    letter-spacing: 0.02em;
}

.nav-tab:hover { color: var(--text); }
.nav-tab.active { color: var(--text); border-bottom-color: var(--primary); }

/* Tab Content */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Section Headers */
.section-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 24px; }
.section-header h2 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; letter-spacing: -0.01em; }

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.status-nominating { background: color-mix(in oklch, var(--accent) 18%, var(--bg-dark)); color: var(--accent); }
.status-voting { background: color-mix(in oklch, var(--warning) 18%, var(--bg-dark)); color: var(--warning); }
.status-reading { background: color-mix(in oklch, var(--primary) 18%, var(--bg-dark)); color: var(--primary); }
.status-discussing { background: color-mix(in oklch, var(--success) 18%, var(--bg-dark)); color: var(--success); }
.status-completed { background: color-mix(in oklch, var(--text-muted) 15%, var(--bg-dark)); color: var(--text-muted); }

/* Empty State */
.empty-state { text-align: center; padding: 80px 20px; }
.empty-state h3 { font-family: var(--font-display); margin-bottom: 8px; font-size: 1.2rem; }
.empty-state p { color: var(--text-muted); max-width: 340px; margin: 0 auto; font-size: 0.95rem; }

/* Search */
.search-bar {
    position: relative;
    margin-bottom: 20px;
}

.search-bar input {
    width: 100%;
    padding: 12px 16px 12px 40px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.15s;
}

.search-bar input:focus { border-color: var(--primary); }
.search-bar input::placeholder { color: var(--text-muted); }

.search-bar::before {
    content: '\1F50D';
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    opacity: 0.5;
}

.search-spinner {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: translateY(-50%) rotate(360deg); } }

/* Search Results */
.search-results {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 24px;
}

.search-result {
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
    cursor: default;
}

.search-result img {
    width: 48px;
    height: 72px;
    object-fit: cover;
    border-radius: 2px;
    background: var(--bg-hover);
}

.search-result-info h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: 2px;
}

.search-result-info p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Book Grid (Shelf) */
.book-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 20px;
}

.book-card {
    cursor: pointer;
    transition: transform 0.15s;
}

.book-card:hover { transform: translateY(-2px); }

.book-cover {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    border-radius: 3px;
    background: var(--bg-hover);
    display: block;
    box-shadow: 2px 4px 12px rgba(0,0,0,0.4);
}

.book-card-title {
    font-family: var(--font-display);
    font-size: 0.8rem;
    margin-top: 8px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card-author {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 2px;
}

/* Meeting Card */
.meeting-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.meeting-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.meeting-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    gap: 16px;
    margin-top: 4px;
}

/* Nomination List */
.nomination-list { display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }

.nomination-item {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: 16px;
    align-items: start;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.nomination-item img {
    width: 56px;
    height: 84px;
    object-fit: cover;
    border-radius: 2px;
    background: var(--bg-hover);
}

.nomination-info h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 400;
    margin-bottom: 2px;
}

.nomination-info .pitch {
    font-style: italic;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 6px;
    line-height: 1.5;
}

.nomination-info .nominator {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 4px;
}

.nomination-actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }

/* Voting Ballot */
.ballot { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }

.ballot-item {
    display: grid;
    grid-template-columns: 40px 48px 1fr;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.ballot-rank {
    width: 36px;
    padding: 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    text-align: center;
    outline: none;
}

.ballot-rank:focus { border-color: var(--primary); }

.ballot-item img {
    width: 48px;
    height: 72px;
    object-fit: cover;
    border-radius: 2px;
    background: var(--bg-hover);
}

.ballot-item-info h4 { font-family: var(--font-display); font-size: 0.9rem; font-weight: 400; }
.ballot-item-info p { color: var(--text-muted); font-size: 0.8rem; }

/* Selected Book Display */
.selected-book {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 28px;
    align-items: start;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
}

.selected-book img {
    width: 140px;
    border-radius: 3px;
    box-shadow: 2px 4px 16px rgba(0,0,0,0.5);
}

.selected-book h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.selected-book .author { color: var(--text-muted); margin-bottom: 16px; font-size: 0.9rem; }

.selected-book .description {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    max-height: 200px;
    overflow-y: auto;
}

/* Book Detail Overlay */
.book-detail-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.book-detail {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
    max-width: 560px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    padding: 32px;
}

.book-detail-header {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.book-detail-header img {
    width: 100px;
    border-radius: 3px;
    box-shadow: 2px 4px 12px rgba(0,0,0,0.4);
}

.book-detail-header h3 { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 4px; }
.book-detail-header .author { color: var(--text-muted); font-size: 0.9rem; }

.book-detail-meta {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.book-detail .description { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

.book-detail-close {
    float: right;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.book-detail-close:hover { color: var(--text); }

/* Nominate Form */
.nominate-form {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

.nominate-form textarea {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.85rem;
    resize: vertical;
    min-height: 38px;
    outline: none;
}

.nominate-form textarea:focus { border-color: var(--primary); }
.nominate-form textarea::placeholder { color: var(--text-muted); }

/* Admin Controls */
.admin-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding: 16px;
    background: color-mix(in oklch, var(--accent) 6%, var(--bg-card));
    border: 1px solid color-mix(in oklch, var(--accent) 20%, var(--border));
    border-radius: 4px;
}

.admin-controls .label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--accent);
    width: 100%;
    margin-bottom: 4px;
    font-weight: 600;
}

/* Settings */
.settings-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 24px;
    margin-bottom: 16px;
}

.settings-section h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 16px;
}

.pref-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid color-mix(in oklch, var(--border) 40%, transparent);
    font-size: 0.9rem;
}

.pref-row:last-child { border-bottom: none; }

.toggle-switch { position: relative; width: 44px; height: 24px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute; cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-hover); border-radius: 24px;
    transition: 0.2s;
}

.toggle-slider:before {
    position: absolute; content: "";
    height: 18px; width: 18px; left: 3px; bottom: 3px;
    background: white; border-radius: 50%;
    transition: 0.2s;
}

.toggle-switch input:checked + .toggle-slider { background: var(--primary); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(20px); }

/* Star Rating */
.star-rating { display: flex; gap: 2px; }

.star-rating button {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0;
    transition: transform 0.1s;
    filter: grayscale(1) opacity(0.3);
}

.star-rating button.active { filter: none; }
.star-rating button:hover { transform: scale(1.15); }

/* Reviews */
.review-item {
    padding: 16px 0;
    border-bottom: 1px solid color-mix(in oklch, var(--border) 40%, transparent);
}

.review-item:last-child { border-bottom: none; }

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 0.85rem;
}

.review-author { font-weight: 500; }
.review-date { color: var(--text-muted); font-size: 0.75rem; }

.review-content { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

.spoiler-tag {
    display: inline-block;
    padding: 2px 6px;
    background: color-mix(in oklch, var(--warning) 15%, var(--bg-dark));
    color: var(--warning);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-radius: 2px;
    margin-left: 8px;
}

.spoiler-blur { filter: blur(4px); cursor: pointer; transition: filter 0.2s; }
.spoiler-blur:hover { filter: blur(2px); }
.spoiler-blur.revealed { filter: none; }

/* Discussion Questions */
.question-list { counter-reset: question; }

.question-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid color-mix(in oklch, var(--border) 40%, transparent);
}

.question-item:last-child { border-bottom: none; }

.question-item::before {
    counter-increment: question;
    content: counter(question);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    background: color-mix(in oklch, var(--primary) 15%, var(--bg-dark));
    color: var(--primary);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
    flex-shrink: 0;
}

.question-text { font-size: 0.95rem; line-height: 1.5; flex: 1; }
.question-meta { color: var(--text-muted); font-size: 0.75rem; margin-top: 4px; }

/* Section Divider */
.section-divider {
    margin: 28px 0;
    border: none;
    border-top: 1px solid var(--border);
}

.admin-only { display: none; }

/* Meetings List */
.meetings-list { display: flex; flex-direction: column; gap: 8px; margin-top: 20px; }

.meeting-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: border-color 0.15s;
}

.meeting-list-item:hover { border-color: var(--primary); }

.meeting-list-item .left { display: flex; align-items: center; gap: 12px; }
.meeting-list-item .title { font-family: var(--font-display); font-size: 0.95rem; }
.meeting-list-item .date { color: var(--text-muted); font-size: 0.8rem; }

/* Placeholder cover */
.no-cover {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    color: var(--text-muted);
    font-size: 1.4rem;
}

/* Form inputs (consolidated) */
.form-input {
    padding: 10px 14px;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    width: 100%;
    transition: border-color 0.15s;
}

.form-input:focus { border-color: var(--primary); }
.form-input::placeholder { color: var(--text-muted); }

.form-stack { display: flex; flex-direction: column; gap: 10px; }
.form-row { display: flex; gap: 8px; }

/* Feedback */
.feedback-item {
    padding: 14px 0;
    border-bottom: 1px solid color-mix(in oklch, var(--border) 40%, transparent);
}

.feedback-item:last-child { border-bottom: none; }

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.feedback-category {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 2px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    background: color-mix(in oklch, var(--primary) 15%, var(--bg-dark));
    color: var(--primary);
}

.feedback-status-new { color: var(--warning); }
.feedback-status-reviewed { color: var(--success); }

/* Focus states */
.btn:focus-visible, .nav-tab:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

/* Responsive */
@media (max-width: 640px) {
    header { padding: 12px 16px; }
    .container { padding: 16px; }
    .nav-tabs { padding: 0 16px; }
    .login-box { padding: 32px 24px; }
    .selected-book { grid-template-columns: 100px 1fr; gap: 16px; padding: 20px; }
    .book-detail-header { grid-template-columns: 72px 1fr; }
    .book-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 14px; }
    .nomination-item { grid-template-columns: 48px 1fr; }
    .nomination-actions { grid-column: 1 / -1; flex-direction: row; }
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 12px 20px;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    max-width: 90vw;
    word-wrap: break-word;
    text-align: center;
}

.toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-error { background: color-mix(in oklch, #ef4444 15%, var(--bg-card)); color: #ef4444; border: 1px solid color-mix(in oklch, #ef4444 30%, transparent); }
.toast-success { background: color-mix(in oklch, var(--success) 15%, var(--bg-card)); color: var(--success); border: 1px solid color-mix(in oklch, var(--success) 30%, transparent); }

/* Text overflow hardening */
.nomination-info h4,
.ballot-item-info h4,
.search-result-info h4,
.meeting-title,
.meeting-list-item .title {
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

#userName {
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.question-text,
.review-content,
.feedback-item div[style*="color:var(--text-muted)"] {
    overflow-wrap: break-word;
    word-break: break-word;
}

.hidden { display: none !important; }