/* ── Reset & Variables ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #0e0e12;
    --bg2: #16161e;
    --bg3: #1e1e2a;
    --bg4: #26263a;
    --border: #2a2a3a;
    --text: #e8e8f0;
    --text2: #9898b0;
    --text3: #6060788;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --success: #10b981;
    --danger: #ef4444;
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-w: 300px;
    --topbar-h: 52px;
}

html, body { height: 100%; overflow: hidden; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

/* ── Home Layout ─────────────────────────────────────────────────────────── */
.home-layout { display: flex; flex-direction: column; height: 100vh; overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch; }

.home-header {
    position: sticky; top: 0; z-index: 10;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}
.home-header-inner {
    max-width: 900px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: 60px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-connect {
    text-decoration: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 7px 14px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.btn-connect:hover { border-color: var(--accent); color: var(--accent); }

.btn-logout {
    text-decoration: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-logout:hover { border-color: #ef4444; color: #ef4444; }

/* ── Account section ─────────────────────────────────────────────────────── */
.account-section {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}
.account-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 10px;
}
.account-hint {
    font-size: 12px;
    color: var(--text2);
    margin: 0 0 6px;
}
.account-hint a { color: var(--accent); text-decoration: none; }
.account-hint code { background: var(--bg3); padding: 2px 5px; border-radius: 4px; font-size: 11px; }

/* ── Sidebar account links ───────────────────────────────────────────────── */
.sidebar-account-links {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}
.sidebar-account-links a {
    flex: 1;
    text-align: center;
    font-size: 11px;
    color: var(--text2);
    text-decoration: none;
    padding: 5px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.15s;
}
.sidebar-account-links a:hover { border-color: var(--accent); color: var(--accent); }

/* ── API key warning in sidebar ─────────────────────────────────────────── */
.api-key-warning {
    background: rgba(245,158,11,0.1);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-size: 11px;
    color: #f59e0b;
    margin-bottom: 10px;
    line-height: 1.5;
}
.api-key-warning a { color: #f59e0b; font-weight: 600; }

.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 24px; }
.logo-text { font-family: 'Crimson Pro', serif; font-size: 22px; font-weight: 600; color: var(--text); }

.home-main { max-width: 900px; margin: 0 auto; padding: 32px 24px; width: 100%; }

/* ── Saga Cards ──────────────────────────────────────────────────────────── */
.sagas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.saga-card {
    display: flex;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    text-decoration: none;
    color: var(--text);
    transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
    cursor: pointer;
}
.saga-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    border-color: var(--accent);
}

.saga-card-spine {
    width: 8px;
    flex-shrink: 0;
    background: var(--accent);
}

.saga-card-body { padding: 16px; flex: 1; }

.saga-card-title {
    font-family: 'Crimson Pro', serif;
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 4px;
    line-height: 1.3;
}

.saga-card-desc {
    font-size: 13px;
    color: var(--text2);
    margin-bottom: 10px;
    line-height: 1.4;
}

.saga-card-meta {
    display: flex; gap: 8px; align-items: center;
    font-size: 12px; color: var(--text2);
}

.badge-completed {
    background: rgba(16,185,129,0.15);
    color: var(--success);
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 11px;
}

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 80px 24px;
}
.empty-icon { font-size: 64px; margin-bottom: 16px; }
.empty-state h2 {
    font-family: 'Crimson Pro', serif;
    font-size: 28px; margin-bottom: 12px;
}
.empty-state p { color: var(--text2); margin-bottom: 24px; }

/* ── Saga Layout ─────────────────────────────────────────────────────────── */
.saga-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
    max-width: 100vw;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    flex-shrink: 0;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.25s ease;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.back-link {
    color: var(--text2);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.15s;
}
.back-link:hover { color: var(--text); }

.sidebar-toggle-close { display: none; background: none; border: none; color: var(--text2); cursor: pointer; font-size: 16px; }

.saga-info {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.saga-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 6px;
}
.saga-title {
    font-family: 'Crimson Pro', serif;
    font-size: 18px;
    font-weight: 600;
    line-height: 1.3;
}
.saga-desc { font-size: 12px; color: var(--text2); margin-top: 2px; }

.books-section {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
    display: flex;
    flex-direction: column;
}

.books-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px 8px;
}
.section-label { font-size: 11px; font-weight: 600; color: var(--text2); letter-spacing: 0.08em; text-transform: uppercase; }

.books-list { padding: 0 10px; flex: 1; }

.book-item {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin-bottom: 8px;
}

.book-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
    gap: 6px;
}

.book-item-info { display: flex; gap: 8px; align-items: flex-start; flex: 1; }
.book-order {
    background: var(--bg4);
    color: var(--text2);
    font-size: 11px;
    width: 20px; height: 20px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; margin-top: 2px;
}
.book-title { font-size: 13px; font-weight: 600; display: block; line-height: 1.3; }
.book-author { font-size: 11px; color: var(--text2); display: block; }

.book-progress-area {}

.progress-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    gap: 8px;
}
.progress-label { font-size: 11px; color: var(--text2); }

.toggle-completed { display: flex; align-items: center; gap: 4px; cursor: pointer; }
.toggle-completed input { display: none; }
.toggle-label {
    font-size: 11px;
    color: var(--text2);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2px 8px;
    transition: all 0.15s;
    white-space: nowrap;
}
.toggle-completed input:checked + .toggle-label {
    background: rgba(16,185,129,0.15);
    color: var(--success);
    border-color: var(--success);
}

.progress-slider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg4);
    border-radius: 4px;
    outline: none;
    cursor: pointer;
}
.progress-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}

.book-processing { font-size: 11px; color: var(--text2); margin-top: 4px; }
.no-books { font-size: 13px; color: var(--text2); text-align: center; padding: 16px 0; }

.btn-add-book {
    margin: 12px 10px 0;
    width: calc(100% - 20px);
    background: none;
    border: 1px dashed var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}
.btn-add-book:hover { border-color: var(--accent); color: var(--accent); }

/* ── AI Settings Section ─────────────────────────────────────────────────── */
.ai-settings-section {
    padding: 12px 10px 8px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.model-select {
    width: 100%;
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 7px 10px;
    font-size: 13px;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.model-select:focus { border-color: var(--accent); }
.model-select:hover { border-color: var(--accent-hover); }
.model-select option { background: var(--bg3); color: var(--text); }

.cache-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cache-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
}
.cache-badge.cache-on {
    background: rgba(16,185,129,0.15);
    color: #10b981;
    border: 1px solid rgba(16,185,129,0.3);
}
.cache-badge.cache-off {
    background: rgba(148,163,184,0.1);
    color: var(--text2);
    border: 1px solid var(--border);
}

.btn-build-cache {
    flex: 1;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 5px 8px;
    font-size: 12px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.btn-build-cache:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn-build-cache:disabled { opacity: 0.6; cursor: not-allowed; }

.cache-hint {
    font-size: 11px;
    color: var(--text2);
    opacity: 0.7;
    line-height: 1.4;
    margin: 4px 0 0;
}
.cache-hint-warn {
    color: #f59e0b;
    opacity: 0.9;
}

/* ── Per-book cache status ─────────────────────────────────────────────────── */
.cache-section {
    margin-top: 8px;
}
.cache-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}
.cache-section-header .section-label {
    margin: 0;
}
.cache-section-header .btn-build-cache {
    flex: unset;
    padding: 4px 10px;
    font-size: 11px;
}
#cacheBookList {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.cache-book-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    font-size: 11px;
}
.cache-book-title {
    color: var(--text2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}
.cache-book-status {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 99px;
    white-space: nowrap;
    flex-shrink: 0;
}
.cache-book-status.cache-ok {
    background: rgba(16,185,129,0.15);
    color: #10b981;
    border: 1px solid rgba(16,185,129,0.3);
}
.cache-book-status.cache-stale {
    background: rgba(245,158,11,0.12);
    color: #f59e0b;
    border: 1px solid rgba(245,158,11,0.3);
}
.cache-book-status.cache-empty {
    background: rgba(148,163,184,0.1);
    color: var(--text2);
    border: 1px solid var(--border);
}
.cache-empty-hint {
    font-size: 11px;
    color: var(--text2);
    opacity: 0.6;
    margin: 0;
}

/* ── Toast de caché ────────────────────────────────────────────────────────── */
.cache-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 18px;
    border-radius: var(--radius);
    font-size: 12px;
    max-width: 360px;
    text-align: center;
    white-space: pre-line;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s, transform 0.25s;
    z-index: 9999;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.cache-toast.cache-toast-visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.sidebar-footer {
    padding: 12px 10px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.btn-new-chat {
    width: 100%;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}
.btn-new-chat:hover { border-color: var(--accent); color: var(--accent); }

/* ── Main Area ───────────────────────────────────────────────────────────── */
.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    overflow-x: hidden;
    background: var(--bg);
    min-width: 0; /* prevents flex children from overflowing */
}

.main-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    height: var(--topbar-h);
    border-bottom: 1px solid var(--border);
    background: var(--bg2);
    flex-shrink: 0;
}

/* Keep old alias for chat area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    overflow-x: hidden;
    background: var(--bg);
    min-width: 0; /* prevents flex children from overflowing */
}

.chat-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 20px;
    height: var(--topbar-h);
    border-bottom: 1px solid var(--border);
    background: var(--bg2);
    flex-shrink: 0;
}

.sidebar-toggle-open {
    display: none;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 13px;
    cursor: pointer;
}

.chat-saga-name {
    font-family: 'Crimson Pro', serif;
    font-size: 17px;
    font-weight: 600;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.position-badge {
    font-size: 12px;
    color: var(--text2);
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 3px 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.messages-container {
    flex: 1;
    min-height: 0; /* critical for flex scrolling — without this long messages extend outside the viewport */
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

/* ── Messages ────────────────────────────────────────────────────────────── */
.message { display: flex; }

.message-user { justify-content: flex-end; }

.message-bubble {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
    overflow-wrap: break-word;
}

.message-user .message-bubble {
    background: var(--accent);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-assistant .message-bubble {
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--text);
    border-bottom-left-radius: 4px;
}

/* Typing indicator */
.typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
}
.typing span {
    width: 7px; height: 7px;
    background: var(--text2);
    border-radius: 50%;
    animation: typingPulse 1.2s infinite;
}
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingPulse {
    0%, 60%, 100% { opacity: 0.3; transform: scale(1); }
    30% { opacity: 1; transform: scale(1.2); }
}

/* ── Welcome Message ─────────────────────────────────────────────────────── */
.welcome-message {
    margin: auto;
    text-align: center;
    max-width: 480px;
    padding: 40px 20px;
}
.welcome-icon { font-size: 56px; margin-bottom: 16px; }
.welcome-message h3 {
    font-family: 'Crimson Pro', serif;
    font-size: 22px;
    margin-bottom: 12px;
    line-height: 1.3;
}
.welcome-message p { color: var(--text2); font-size: 14px; margin-bottom: 10px; }
.welcome-message strong { color: var(--text); }

/* ── Chat Bottom ─────────────────────────────────────────────────────────── */
.chat-bottom {
    border-top: 1px solid var(--border);
    padding: 12px 20px 16px;
    background: var(--bg);
    flex-shrink: 0;
    overflow-x: hidden;
    min-width: 0;
}

.quick-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.quick-btn {
    background: var(--bg2);
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: 20px;
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.quick-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(99,102,241,0.08);
}

.input-area {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    padding: 10px 14px;
    resize: none;
    outline: none;
    min-height: 42px;
    max-height: 150px;
    transition: border-color 0.15s;
    line-height: 1.5;
}
.chat-input:focus { border-color: var(--accent); }
.chat-input::placeholder { color: var(--text2); }

.send-btn {
    width: 42px; height: 42px;
    background: var(--accent);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 18px;
    cursor: pointer;
    flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.15s;
}
.send-btn:hover:not(:disabled) { background: var(--accent-hover); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Modals ──────────────────────────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: 16px;
    backdrop-filter: blur(4px);
}
.modal-overlay.active { display: flex; }

.modal-box {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 480px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 {
    font-family: 'Crimson Pro', serif;
    font-size: 20px;
    font-weight: 600;
}
.modal-close {
    background: none; border: none;
    color: var(--text2); font-size: 16px;
    cursor: pointer; padding: 4px;
    transition: color 0.15s;
}
.modal-close:hover { color: var(--text); }

.modal-box form { padding: 20px; }

.modal-actions {
    display: flex; gap: 8px; justify-content: flex-end;
    margin-top: 20px;
}

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text2);
    margin-bottom: 6px;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea {
    width: 100%;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    padding: 9px 12px;
    outline: none;
    transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 60px; }

/* Color picker */
.color-options { display: flex; gap: 8px; flex-wrap: wrap; }
.color-opt { cursor: pointer; }
.color-opt input { display: none; }
.color-opt span {
    display: block;
    width: 28px; height: 28px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: border-color 0.15s, transform 0.15s;
}
.color-opt input:checked + span {
    border-color: white;
    transform: scale(1.15);
}

/* File drop area */
.file-drop-area {
    background: var(--bg3);
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s;
}
.file-drop-area:hover {
    border-color: var(--accent);
    background: rgba(99,102,241,0.05);
}
#fileLabel { font-size: 13px; color: var(--text2); }

/* Upload progress */
.upload-progress {
    padding: 30px 20px;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}
.upload-progress p { color: var(--text2); font-size: 14px; }
.upload-spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
    font-family: inherit;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-large { padding: 12px 24px; font-size: 15px; }

.btn-ghost {
    background: none;
    color: var(--text2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}
.btn-ghost:hover { border-color: var(--text2); color: var(--text); }

.btn-icon {
    background: none;
    border: none;
    color: var(--text2);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
    border-radius: 6px;
    transition: color 0.15s;
}
.btn-icon:hover { color: var(--text); }
.btn-danger-icon:hover { color: var(--danger); }

/* ── Markdown in messages ────────────────────────────────────────────────── */
.message-md p { margin: 0 0 8px; }
.message-md p:last-child { margin-bottom: 0; }
.message-md strong { color: inherit; font-weight: 600; }
.message-md em { font-style: italic; }
.message-md h1, .message-md h2, .message-md h3 {
    font-family: 'Crimson Pro', serif;
    margin: 12px 0 6px;
    line-height: 1.3;
}
.message-md h1 { font-size: 18px; }
.message-md h2 { font-size: 16px; }
.message-md h3 { font-size: 15px; color: var(--text2); }
.message-md ul, .message-md ol { padding-left: 18px; margin: 6px 0; }
.message-md li { margin-bottom: 4px; }
.message-md code {
    font-family: monospace;
    background: rgba(255,255,255,0.08);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 12px;
}
.message-md hr { border: none; border-top: 1px solid rgba(255,255,255,0.15); margin: 10px 0; }

/* Tables in both chat and analysis */
.message-md table,
.analysis-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 13px;
}
.message-md th,
.analysis-body th {
    background: var(--bg4);
    color: var(--text);
    font-weight: 600;
    padding: 7px 10px;
    text-align: left;
    border: 1px solid var(--border);
}
.message-md td,
.analysis-body td {
    padding: 6px 10px;
    border: 1px solid var(--border);
    color: var(--text2);
    vertical-align: top;
}
.message-md tr:nth-child(even) td,
.analysis-body tr:nth-child(even) td {
    background: rgba(255,255,255,0.02);
}

/* Blockquotes */
.message-md blockquote,
.analysis-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 8px 0;
    padding: 4px 12px;
    color: var(--text2);
    font-style: italic;
}

/* Tab Bar ─────────────────────────────────────────────────────────────────── */
.tab-bar {
    display: flex;
    gap: 2px;
    padding: 0 16px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow-x: auto;
}
.tab-bar::-webkit-scrollbar { display: none; }

.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text2);
    font-size: 13px;
    font-family: inherit;
    padding: 10px 14px;
    cursor: pointer;
    white-space: nowrap;
    transition: color 0.15s, border-color 0.15s;
    margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    font-weight: 500;
}

/* ── Tab Panels ──────────────────────────────────────────────────────────── */
.tab-panel {
    display: none;
    flex: 1;
    min-height: 0; /* allows flex child to shrink and scroll properly */
    overflow-y: auto;
    flex-direction: column;
}
.tab-panel.active { display: flex; }

/* ── Analysis Panel ──────────────────────────────────────────────────────── */
.analysis-panel {
    padding: 20px;
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
}

.analysis-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    gap: 12px;
}

.analysis-title {
    font-family: 'Crimson Pro', serif;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 4px;
}
.analysis-desc { font-size: 13px; color: var(--text2); }

.btn-refresh {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    transition: all 0.15s;
    flex-shrink: 0;
}
.btn-refresh:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn-refresh:disabled { opacity: 0.4; cursor: not-allowed; }

.analysis-content { flex: 1; }

.analysis-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text2);
    font-size: 14px;
}
.analysis-empty p { line-height: 1.6; }

.analysis-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 60px 20px;
    color: var(--text2);
}

.analysis-error { color: #ef4444; padding: 20px 0; font-size: 14px; }

.analysis-body {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text);
}
.analysis-body h1, .analysis-body h2, .analysis-body h3 {
    font-family: 'Crimson Pro', serif;
    color: var(--text);
    margin: 20px 0 8px;
}
.analysis-body h2 { font-size: 19px; }
.analysis-body h3 { font-size: 16px; color: var(--text2); }
.analysis-body p { margin-bottom: 12px; }
.analysis-body strong { color: var(--text); }
.analysis-body em { color: var(--text2); }
.analysis-body ul, .analysis-body ol { padding-left: 20px; margin-bottom: 12px; }
.analysis-body li { margin-bottom: 6px; }
.analysis-body hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.cache-note {
    font-size: 11px;
    color: var(--text2);
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

/* ── Book Actions Row ────────────────────────────────────────────────────── */
.book-actions-row {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.btn-book-action {
    flex: 1;
    min-width: 0;
    background: none;
    border: 1px dashed var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 5px 8px;
    font-size: 11px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.btn-book-action:hover { border-color: var(--accent); color: var(--accent); background: rgba(99,102,241,0.05); }
.btn-locate-toggle:hover { border-color: #f97316; color: #f97316; background: rgba(249,115,22,0.05); }

/* ── Explorer Modal ──────────────────────────────────────────────────────── */
.modal-wide { max-width: 720px; }

.explorer-subtitle { font-size: 13px; color: var(--text2); margin-top: 2px; }

.explorer-book-select {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    color: var(--text2);
}
.explorer-book-select select {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 5px 8px;
    font-family: inherit;
    font-size: 13px;
    flex: 1;
    outline: none;
}

.explorer-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

.explorer-nav-btn {
    background: var(--bg3);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-sm);
    padding: 7px 14px;
    font-size: 13px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.15s;
    white-space: nowrap;
}
.explorer-nav-btn:hover:not(:disabled) { border-color: var(--accent); }
.explorer-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.explorer-page-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text2);
}
.explorer-page-info input[type="number"] {
    width: 60px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
    padding: 4px 8px;
    text-align: center;
    outline: none;
}
.explorer-page-info input:focus { border-color: var(--accent); }

.explorer-chapter-name {
    display: none;
    padding: 6px 20px;
    font-size: 12px;
    color: var(--accent);
    background: rgba(99,102,241,0.06);
    border-bottom: 1px solid var(--border);
}

.explorer-text-wrap {
    height: 340px;
    overflow-y: auto;
    padding: 0;
}

.explorer-text {
    padding: 16px 20px;
}

.page-text {
    font-family: 'Crimson Pro', Georgia, serif;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

.explorer-loading { color: var(--text2); font-size: 14px; padding: 20px 0; text-align: center; }
.explorer-error { color: #ef4444; font-size: 14px; }

.explorer-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    background: var(--bg2);
}

.explorer-hint {
    font-size: 12px;
    color: var(--text2);
    margin-bottom: 10px;
    line-height: 1.5;
}

.btn-set-position {
    width: 100%;
    background: #f97316;
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: opacity 0.15s;
}
.btn-set-position:hover { opacity: 0.9; }

/* ── Locate Feature ─────────────────────────────────────────────────────── */
.btn-locate {
    display: block;
    width: 100%;
    margin-top: 8px;
    background: none;
    border: 1px dashed var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 5px 10px;
    font-size: 12px;
    cursor: pointer;
    text-align: left;
    transition: all 0.15s;
    font-family: inherit;
}
.btn-locate:hover {
    border-color: #f97316;
    color: #f97316;
    background: rgba(249,115,22,0.05);
}

.locate-area {
    margin-top: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px;
}

.locate-input {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: inherit;
    font-size: 12px;
    padding: 8px;
    resize: vertical;
    outline: none;
    line-height: 1.5;
    transition: border-color 0.15s;
}
.locate-input:focus { border-color: #f97316; }
.locate-input::placeholder { color: var(--text2); font-size: 11px; }

.locate-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    gap: 8px;
}

.locate-result {
    font-size: 11px;
    color: var(--success);
    flex: 1;
}

.btn-locate-submit {
    background: #f97316;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    font-family: inherit;
    transition: opacity 0.15s;
}
.btn-locate-submit:hover:not(:disabled) { opacity: 0.85; }
.btn-locate-submit:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--bg4); }

/* ══════════════════════════════════════════════════════════════════════════
   MOBILE — comprehensive overhaul
   Primary device for this app is iPhone, so this matters a lot.
   ══════════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

    /* ── Body / scroll root ──────────────────────────────────────────── */
    html, body {
        overflow: auto;
        height: auto;
        min-height: 100%;
    }

    /* Saga page locks viewport so inner panels scroll, not the page */
    body:has(.saga-layout),
    body.saga-page {
        overflow: hidden;
        height: 100%;
    }

    /* ── Saga layout: use dvh so iOS address bar doesn't clip ────────── */
    .saga-layout {
        height: 100vh;   /* fallback for old browsers */
        height: 100dvh;  /* dynamic: adjusts when iOS browser bar shows/hides */
        overflow: hidden;
    }

    /* ── Sidebar ─────────────────────────────────────────────────────── */
    .sidebar {
        position: fixed;
        left: 0; top: 0; bottom: 0;
        z-index: 50;
        transform: translateX(-100%);
        width: 88vw;
        max-width: 340px;
        box-shadow: 6px 0 32px rgba(0,0,0,0.6);
    }
    .sidebar.sidebar-open { transform: translateX(0); }
    .sidebar-toggle-close { display: block; }
    .sidebar-toggle-open  { display: flex; }

    /* Sidebar backdrop when open */
    .sidebar.sidebar-open::after {
        content: '';
        position: fixed;
        inset: 0;
        left: 88vw;
        background: rgba(0,0,0,0.5);
        z-index: -1;
    }

    /* ── Home header ─────────────────────────────────────────────────── */
    .home-header { padding: 0 12px; }
    .home-header-inner { height: 52px; padding: 0; flex-wrap: nowrap; }
    .logo { flex-shrink: 1; min-width: 0; overflow: hidden; }
    .logo-text { font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .logo-icon { font-size: 18px; flex-shrink: 0; }
    .header-actions { gap: 5px; flex-shrink: 0; }

    /* Compress "Conectar" / "Mi Cuenta" to icon only */
    .btn-connect .btn-connect-text { display: none; }
    .btn-connect { padding: 7px 9px; font-size: 16px; }

    /* "+ Nueva Saga" → "+ Saga" on mobile */
    .btn-new-text { display: none; }
    .header-actions .btn-primary { font-size: 13px; padding: 7px 11px; white-space: nowrap; min-height: unset; }

    /* Home main */
    .home-main { padding: 16px 12px; }

    /* ── Saga grid ───────────────────────────────────────────────────── */
    .sagas-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .saga-card-title { font-size: 18px; }

    /* ── Chat topbar ─────────────────────────────────────────────────── */
    .chat-topbar  { padding: 0 10px; gap: 8px; }
    .main-topbar  { padding: 0 10px; gap: 8px; }
    .chat-saga-name { font-size: 15px; }
    .position-badge { max-width: 90px; font-size: 12px; padding: 4px 8px; flex-shrink: 0; }

    /* Sidebar toggle: bigger touch target */
    .sidebar-toggle-open {
        min-width: 44px; min-height: 44px;
        padding: 10px 12px;
        font-size: 18px;
        flex-shrink: 0;
    }

    /* ── Messages ────────────────────────────────────────────────────── */
    .messages-container { padding: 14px 10px; gap: 12px; }
    .message-bubble {
        max-width: 90%;
        font-size: 14px;
        padding: 10px 13px;
    }

    /* ── Chat input area ─────────────────────────────────────────────── */
    .chat-bottom { padding: 8px 10px 12px; }
    .quick-actions { gap: 4px; margin-bottom: 8px; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 2px; }
    .quick-actions::-webkit-scrollbar { display: none; }
    .quick-btn { padding: 5px 11px; font-size: 12px; flex-shrink: 0; }

    /* Prevent iOS zoom on input focus (font-size must be >= 16px) */
    .chat-input { font-size: 16px; padding: 10px 12px; }

    /* ── Modals: full-width bottom sheet feel on phone ───────────────── */
    .modal-overlay { padding: 12px 10px; align-items: flex-end; }
    .modal-box {
        max-width: 100%;
        border-radius: var(--radius) var(--radius) 0 0;
        max-height: 90vh;
        max-height: 90dvh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
    .modal-box form { padding: 16px; }
    .modal-header { padding: 14px 16px; }

    /* ── Forms ───────────────────────────────────────────────────────── */
    .form-group input[type="text"],
    .form-group input[type="number"],
    .form-group textarea {
        font-size: 16px; /* prevents iOS auto-zoom */
        padding: 11px 12px;
        border-radius: var(--radius-sm);
    }

    /* ── Welcome message ─────────────────────────────────────────────── */
    .welcome-message { padding: 24px 16px; }
    .welcome-icon { font-size: 44px; }
    .welcome-message h3 { font-size: 19px; }
    .welcome-message p { font-size: 13px; }

    /* ── Book items in sidebar ───────────────────────────────────────── */
    .book-item { padding: 10px 10px; }
    .book-title { font-size: 13px; }

    /* ── Buttons: bigger touch targets ───────────────────────────────── */
    .btn-primary { min-height: 44px; padding: 10px 18px; }
    .btn-ghost   { min-height: 44px; }
    .btn-add-book { min-height: 40px; }
    .send-btn { width: 46px; height: 46px; font-size: 20px; }

    /* ── Tab bar ─────────────────────────────────────────────────────── */
    .tab-bar { padding: 0 8px; }
    .tab-btn { padding: 10px 12px; font-size: 12px; }

    /* ── Analysis panel ──────────────────────────────────────────────── */
    .analysis-panel { padding: 14px 12px; }

    /* ── Connect page ────────────────────────────────────────────────── */
    .connect-main { padding: 20px 16px 0; gap: 20px; }
    .connect-title { font-size: 22px; }
    .connect-subtitle { font-size: 14px; }
    .qr-img { width: 160px; height: 160px; }
    .qr-link { font-size: 13px; }
    .step-body strong { font-size: 14px; }
    .step-body p { font-size: 13px; }
    .ios-steps { font-size: 13px; }

    /* ── Account page ────────────────────────────────────────────────── */
    .home-main[style*="max-width:500px"] { padding: 20px 14px; }

    /* ── Empty state ─────────────────────────────────────────────────── */
    .empty-state { padding: 48px 20px; }
    .empty-icon { font-size: 48px; }
    .empty-state h2 { font-size: 22px; }

    /* ── Explorer modal: taller text area ───────────────────────────── */
    .explorer-text-wrap { height: 260px; }
    .modal-wide { max-width: 100%; }
}

/* ── Extra small (iPhone SE etc.) ───────────────────────────────────────── */
@media (max-width: 390px) {
    .quick-btn { font-size: 11px; padding: 4px 9px; }
    .message-bubble { max-width: 93%; font-size: 13px; }
    .position-badge { max-width: 90px; font-size: 10px; }
    .chat-saga-name { font-size: 14px; }
    .tab-btn { padding: 9px 10px; font-size: 11px; }
}

/* ── Connect Page ──────────────────────────────────────────────────────────── */
.connect-layout {
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-bottom: 40px;
    -webkit-overflow-scrolling: touch;
}

.connect-header {
    width: 100%;
    max-width: 560px;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px 0;
}
.back-link-header {
    color: var(--text2);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
}
.back-link-header:hover { color: var(--text); }

.connect-main {
    width: 100%;
    max-width: 560px;
    padding: 32px 24px 0;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.connect-title {
    font-family: 'Crimson Pro', serif;
    font-size: 28px;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}
.connect-subtitle { color: var(--text2); margin: 0; font-size: 15px; }

/* QR */
.qr-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}
.qr-box {
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.qr-img { display: block; width: 200px; height: 200px; }
.qr-error { color: var(--text2); font-size: 13px; text-align: center; padding: 20px 0; }
.qr-error code {
    display: inline-block;
    margin-top: 8px;
    background: var(--bg3);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    color: var(--accent-hover);
}

.qr-url {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}
.qr-link {
    font-family: monospace;
    font-size: 15px;
    color: var(--accent-hover);
    text-decoration: none;
}
.qr-link:hover { text-decoration: underline; }
.btn-copy {
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: var(--radius-sm);
    padding: 5px 12px;
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}
.btn-copy:hover { border-color: var(--accent); color: var(--accent); }

/* Steps */
.connect-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.connect-step {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
}
.step-num {
    min-width: 28px;
    height: 28px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 1px;
}
.step-body { flex: 1; }
.step-body strong { font-size: 14px; color: var(--text); display: block; margin-bottom: 4px; }
.step-body p { font-size: 13px; color: var(--text2); margin: 0; }

.url-chip {
    display: inline-block;
    margin-top: 8px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 5px 12px;
    font-family: monospace;
    font-size: 13px;
    color: var(--accent-hover);
    user-select: all;
}

.ios-steps {
    margin: 8px 0 0 16px;
    padding: 0;
    font-size: 13px;
    color: var(--text2);
    line-height: 1.8;
}
.ios-steps li strong { color: var(--text); }
.ios-steps li em { color: var(--text2); font-style: italic; }

/* Tech info */
.connect-tech {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--text2);
}
.connect-tech strong { color: var(--text); }
.connect-tech a { color: var(--accent-hover); text-decoration: none; }
.connect-tech a:hover { text-decoration: underline; }
.mono { font-family: monospace; color: var(--accent-hover); }

/* ── iPhone safe areas (notch + home indicator) ──────────────────────────── */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .chat-bottom {
        padding-bottom: calc(12px + env(safe-area-inset-bottom));
    }
    .sidebar-footer {
        padding-bottom: calc(12px + env(safe-area-inset-bottom));
    }
    .home-main {
        padding-bottom: calc(32px + env(safe-area-inset-bottom));
    }
    .connect-layout {
        padding-bottom: calc(40px + env(safe-area-inset-bottom));
    }
}

/* ══════════════════════════════════════════════════════════════════════════
   VISUAL REDESIGN v2 — Light/Dark theme + new card design
   ══════════════════════════════════════════════════════════════════════════ */

/* ── Light Theme Variables ───────────────────────────────────────────────── */
[data-theme="light"] {
    --bg:     #eceae4;
    --bg2:    #ffffff;
    --bg3:    #f5f2eb;
    --bg4:    #e8e4db;
    --border: #d6d0c8;
    --text:   #1c1814;
    --text2:  #7a7060;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --success: #10b981;
    --danger:  #ef4444;
}

/* light mode — body bg */
[data-theme="light"] body { background: var(--bg); }

/* ── Theme Toggle Button ─────────────────────────────────────────────────── */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text2);
    border-radius: 20px;
    padding: 6px 14px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
    white-space: nowrap;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

/* ── Home hero heading ───────────────────────────────────────────────────── */
.sagas-hero {
    margin-bottom: 24px;
}
.sagas-heading {
    font-family: 'Crimson Pro', serif;
    font-size: 36px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.1;
    margin-bottom: 4px;
}
.sagas-subheading {
    font-size: 14px;
    color: var(--text2);
}

/* ── New Saga Card — vertical layout ────────────────────────────────────── */
/* Override the old horizontal layout */
.saga-card {
    flex-direction: column;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
    transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.saga-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.18);
    border-color: var(--accent);
}
[data-theme="light"] .saga-card {
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
[data-theme="light"] .saga-card:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.14);
}

/* ── Card gradient header ────────────────────────────────────────────────── */
/* Default (dark): vivid gradient using saga colour */
.saga-card-header {
    background: linear-gradient(
        135deg,
        var(--accent) 0%,
        color-mix(in srgb, var(--accent) 75%, #000) 100%
    );
    padding: 18px 18px 14px;
    min-height: 72px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
}

/* Light mode: pastel gradient */
[data-theme="light"] .saga-card-header {
    background: linear-gradient(
        135deg,
        color-mix(in srgb, var(--accent) 28%, #fff) 0%,
        color-mix(in srgb, var(--accent) 42%, #fff) 100%
    );
}

/* Author line sits inside the header */
.saga-card-author {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: rgba(255,255,255,0.75);
    line-height: 1;
}
[data-theme="light"] .saga-card-author {
    color: color-mix(in srgb, var(--accent) 90%, #000);
    opacity: 0.75;
}

/* ── Card body ───────────────────────────────────────────────────────────── */
.saga-card-body {
    padding: 14px 18px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Override old title margin (was in .saga-card-body .saga-card-title) */
.saga-card-body .saga-card-title {
    font-size: 20px;
    margin-bottom: 2px;
    color: var(--text);
}

.saga-card-body .saga-card-desc {
    font-style: italic;
    font-size: 12px;
    color: var(--text2);
    margin-bottom: 10px;
    line-height: 1.4;
}

/* ── Progress row ────────────────────────────────────────────────────────── */
.saga-progress-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
    margin-top: 8px;
}
.saga-progress-label {
    font-size: 11px;
    color: var(--text2);
}
.saga-progress-pct {
    font-size: 12px;
    font-weight: 600;
    color: #f97316;
}
.saga-progress-bar {
    height: 5px;
    background: var(--bg4);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 12px;
}
.saga-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #6366f1 0%, #ec4899 55%, #f97316 100%);
    border-radius: 3px;
    min-width: 4px;
}

/* ── Status chips ────────────────────────────────────────────────────────── */
.saga-chips {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    font-weight: 500;
    padding: 3px 9px;
    border-radius: 20px;
    background: var(--bg3);
    color: var(--text2);
    border: 1px solid var(--border);
    white-space: nowrap;
}
.chip-green {
    background: rgba(16,185,129,0.1);
    color: #10b981;
    border-color: rgba(16,185,129,0.28);
}
.chip-orange {
    background: rgba(249,115,22,0.1);
    color: #f97316;
    border-color: rgba(249,115,22,0.28);
}
[data-theme="light"] .chip-green {
    background: rgba(16,185,129,0.12);
    color: #0a7c55;
    border-color: rgba(16,185,129,0.35);
}
[data-theme="light"] .chip-orange {
    background: rgba(249,115,22,0.12);
    color: #b85200;
    border-color: rgba(249,115,22,0.35);
}

/* ── Book list inside card ───────────────────────────────────────────────── */
.saga-books-list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.saga-book-row {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text2);
    line-height: 1.3;
}
.saga-book-check {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1.5px solid var(--border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 9px;
    font-weight: 700;
    color: transparent;
    background: var(--bg3);
}
.saga-book-check.done {
    background: var(--success);
    border-color: var(--success);
    color: white;
}
.saga-book-title-sm {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text);
}
.saga-book-page {
    font-size: 11px;
    color: var(--text2);
    flex-shrink: 0;
}
.saga-book-more {
    font-size: 11px;
    color: var(--text2);
    padding-left: 24px;
    opacity: 0.7;
}

/* ── Tab bar: pill-style active tab ─────────────────────────────────────── */
.tab-bar {
    padding: 6px 12px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
}
.tab-btn {
    border-bottom: none;
    border-radius: 20px;
    padding: 6px 14px;
    margin-bottom: 0;
    font-size: 13px;
}
.tab-btn.active {
    background: var(--accent);
    color: #fff;
    border-bottom-color: transparent;
    font-weight: 600;
}
.tab-btn:hover:not(.active) {
    background: var(--bg3);
    color: var(--text);
}

/* ── Light mode: chat message bubbles ───────────────────────────────────── */
[data-theme="light"] .message-assistant .message-bubble {
    background: #ffffff;
    border: none;
    box-shadow: 0 1px 6px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.04);
}

/* ── Light mode: chat input + quick buttons ─────────────────────────────── */
[data-theme="light"] .chat-input {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text);
}
[data-theme="light"] .chat-input::placeholder { color: var(--text2); }
[data-theme="light"] .chat-bottom { background: var(--bg); border-top-color: var(--border); }
[data-theme="light"] .main-topbar { background: #ffffff; border-bottom-color: var(--border); }
[data-theme="light"] .tab-bar { background: #ffffff; }
[data-theme="light"] .sidebar { background: #ffffff; border-right-color: var(--border); }
[data-theme="light"] .sidebar-header { border-bottom-color: var(--border); }
[data-theme="light"] .saga-info { border-bottom-color: var(--border); }
[data-theme="light"] .book-item { background: var(--bg3); border-color: var(--border); }
[data-theme="light"] .quick-btn { background: #ffffff; border-color: var(--border); color: var(--text2); }
[data-theme="light"] .quick-btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(99,102,241,0.06); }
[data-theme="light"] .position-badge { background: var(--bg3); border-color: var(--border); color: var(--text2); }
[data-theme="light"] .home-header { background: #ffffff; border-bottom-color: var(--border); }
[data-theme="light"] .modal-box { background: #ffffff; border-color: var(--border); }
[data-theme="light"] .form-group input[type="text"],
[data-theme="light"] .form-group input[type="number"],
[data-theme="light"] .form-group textarea { background: var(--bg3); border-color: var(--border); color: var(--text); }
[data-theme="light"] .explorer-text-wrap,
[data-theme="light"] .explorer-nav { border-color: var(--border); }
[data-theme="light"] .page-text { color: var(--text); }

/* ── Mobile: keep cards single column, compact header ───────────────────── */
@media (max-width: 768px) {
    .sagas-heading { font-size: 26px; }
    .saga-card-header { min-height: 56px; padding: 12px 14px 10px; }
    .saga-card-body { padding: 12px 14px 14px; }
    .saga-card-body .saga-card-title { font-size: 17px; }
}