/* ============================================================
   Unified manual — bespoke shell on top of manual.css
   ============================================================ */

body.man-unified {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.uni-tools {
    display: flex; gap: 6px;
    margin-left: auto; margin-right: 14px;
}
.uni-tool-btn {
    width: 34px; height: 34px;
    background: transparent;
    border: 1px solid var(--c-border);
    border-radius: 6px;
    color: var(--c-text);
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex; align-items: center; justify-content: center;
}
.uni-tool-btn:hover {
    border-color: var(--c-primary);
    color: var(--c-primary);
    background: rgba(11, 61, 92, 0.04);
}

/* ============================================================
   Hero block on the unified landing
   ============================================================ */
.uni-hero {
    position: relative;
    background: linear-gradient(135deg, #0b3d5c 0%, #155179 100%);
    color: #ffffff;
    border-radius: 16px;
    padding: 48px 44px;
    margin-bottom: 36px;
    overflow: hidden;
}
.uni-hero::before {
    content: ''; position: absolute; inset: 0;
    background:
        radial-gradient(circle at 90% 10%, rgba(212, 164, 55, 0.32) 0%, transparent 45%),
        radial-gradient(circle at 10% 90%, rgba(212, 164, 55, 0.12) 0%, transparent 50%);
    pointer-events: none;
}
.uni-hero-badge {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(212, 164, 55, 0.18);
    color: #d4a437;
    border: 1px solid rgba(212, 164, 55, 0.35);
    border-radius: 16px;
    font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.06em; text-transform: uppercase;
    margin-bottom: 20px;
}
.uni-hero h1 {
    color: #ffffff;
    font-size: 2.4rem;
    line-height: 1.15;
    margin: 0 0 14px;
    border: none;
}
.uni-hero .lede {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.05rem;
    max-width: 760px;
    margin-bottom: 28px;
}
.uni-hero kbd {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85em;
}
.uni-hero-stats {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
    position: relative;
}
.uni-hero-num {
    font-size: 1.8rem; font-weight: 700;
    color: #d4a437;
    line-height: 1;
}
.uni-hero-lbl {
    font-size: 0.75rem; color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase; letter-spacing: 0.06em;
    margin-top: 4px;
}

/* ============================================================
   10 parts grid
   ============================================================ */
.uni-parts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 16px;
    margin: 18px 0 36px;
}
.uni-part {
    display: flex; gap: 14px;
    background: #ffffff;
    border: 1px solid var(--c-border);
    border-radius: 12px;
    padding: 18px 20px;
    text-decoration: none;
    color: var(--c-text);
    transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
    border-left: 4px solid var(--c-accent);
}
.uni-part:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--c-primary);
    color: var(--c-text);
}
.uni-part-num {
    flex: 0 0 auto;
    width: 38px; height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, #d4a437, #b58724);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.95rem;
    box-shadow: 0 2px 6px rgba(212, 164, 55, 0.35);
}
.uni-part h3 {
    font-size: 1.05rem;
    color: var(--c-primary);
    margin: 0 0 4px;
    border: none;
}
.uni-part p { font-size: 0.86rem; color: var(--c-text); margin: 0 0 6px; line-height: 1.45; }
.uni-part-meta { font-size: 0.72rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.04em; }

.uni-part.uni-part-feature {
    background: linear-gradient(135deg, #ffffff 0%, #fef3c7 100%);
    border-left-color: #d4a437;
    border-left-width: 6px;
}
.uni-part.uni-part-feature .uni-part-num {
    background: linear-gradient(135deg, #0b3d5c, #155179);
    box-shadow: 0 2px 6px rgba(11, 61, 92, 0.35);
}

/* ============================================================
   How-to-read + companion
   ============================================================ */
.uni-how-grid, .uni-companion-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px;
    margin: 12px 0 36px;
}
.uni-how {
    background: #ffffff;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    padding: 16px;
    text-align: center;
}
.uni-how i {
    font-size: 1.6rem;
    color: var(--c-accent-dark);
    margin-bottom: 10px;
}
.uni-how h4 {
    font-size: 0.95rem;
    color: var(--c-primary);
    margin: 0 0 6px;
    border: none;
}
.uni-how p { font-size: 0.82rem; color: var(--c-text); margin: 0; line-height: 1.45; }

.uni-companion {
    display: flex; flex-direction: column; align-items: center; gap: 4px;
    background: #ffffff;
    border: 1px solid var(--c-border);
    border-radius: 10px;
    padding: 18px 14px;
    text-align: center;
    color: var(--c-text);
    text-decoration: none;
    transition: all 0.15s;
}
.uni-companion:hover {
    border-color: var(--c-primary);
    background: rgba(11, 61, 92, 0.03);
    transform: translateY(-2px);
    color: var(--c-text);
}
.uni-companion i {
    font-size: 1.5rem;
    color: var(--c-primary);
    margin-bottom: 4px;
}
.uni-companion strong { color: var(--c-primary); font-size: 0.92rem; }
.uni-companion span { color: var(--c-muted); font-size: 0.76rem; }

/* ============================================================
   Sidebar — unified, multi-level expandable
   ============================================================ */
.uni-sidebar .uni-tree-group {
    margin-top: 16px;
}
.uni-sidebar .uni-tree-group-title {
    display: flex; align-items: center; justify-content: space-between;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--c-primary);
    font-weight: 700;
    padding: 6px 10px 6px 4px;
    border-bottom: 1px solid var(--c-border);
    cursor: pointer;
    user-select: none;
}
.uni-sidebar .uni-tree-group-title i.uni-chev {
    font-size: 0.7rem;
    transition: transform 0.2s;
    color: var(--c-muted);
}
.uni-sidebar .uni-tree-group.is-collapsed i.uni-chev {
    transform: rotate(-90deg);
}
.uni-sidebar .uni-tree-group.is-collapsed > .man-sidebar-list {
    display: none;
}

/* ============================================================
   Search overlay
   ============================================================ */
.uni-search-overlay {
    position: fixed; inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
    z-index: 9998;
    display: none;
    align-items: flex-start; justify-content: center;
    padding-top: 80px;
}
.uni-search-overlay.is-open { display: flex; }
.uni-search-panel {
    width: min(640px, 92vw);
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.4);
    overflow: hidden;
}
.uni-search-input {
    width: 100%;
    border: 0; outline: 0;
    padding: 16px 20px;
    font-size: 1.05rem;
    background: #ffffff;
    border-bottom: 1px solid var(--c-border);
}
.uni-search-results {
    max-height: 50vh; overflow-y: auto;
}
.uni-search-result {
    display: block; padding: 10px 20px;
    border-bottom: 1px solid #f1f5f9;
    color: var(--c-text); text-decoration: none;
    transition: background 0.1s;
}
.uni-search-result:hover, .uni-search-result.is-active {
    background: #f1f5f9;
    color: var(--c-primary);
}
.uni-search-result strong {
    color: var(--c-primary);
    display: block;
    font-size: 0.9rem;
    margin-bottom: 2px;
}
.uni-search-result span {
    color: var(--c-muted);
    font-size: 0.75rem;
}
.uni-search-empty {
    padding: 30px;
    text-align: center;
    color: var(--c-muted);
    font-size: 0.86rem;
    font-style: italic;
}
.uni-search-tip {
    background: #f8fafc;
    padding: 8px 20px;
    font-size: 0.72rem;
    color: var(--c-muted);
    border-top: 1px solid var(--c-border);
}
.uni-search-tip kbd {
    background: #ffffff;
    border: 1px solid var(--c-border);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 0.72em;
}

/* ============================================================
   Footer
   ============================================================ */
.uni-footer {
    margin-top: 60px;
    padding: 20px 28px;
    background: #f1f5f9;
    border-top: 1px solid var(--c-border);
    color: var(--c-muted);
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
}
.uni-footer-links a {
    color: var(--c-primary);
    text-decoration: none;
    font-weight: 500;
}
.uni-footer-links a:hover { text-decoration: underline; }

/* ============================================================
   Dark mode
   ============================================================ */
body.uni-dark {
    background: #0f172a;
    color: #cbd5e1;
}
body.uni-dark .man-nav,
body.uni-dark .uni-sidebar {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
}
body.uni-dark .man-content { color: #e2e8f0; }
body.uni-dark h1, body.uni-dark h2, body.uni-dark h3, body.uni-dark h4 {
    color: #f1f5f9;
}
body.uni-dark .uni-part,
body.uni-dark .uni-how,
body.uni-dark .uni-companion {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
}
body.uni-dark .uni-part p,
body.uni-dark .uni-how p,
body.uni-dark .uni-companion span {
    color: #cbd5e1;
}
body.uni-dark .uni-part h3,
body.uni-dark .uni-how h4,
body.uni-dark .uni-companion strong {
    color: #f1f5f9;
}
body.uni-dark .uni-search-panel { background: #1e293b; color: #e2e8f0; }
body.uni-dark .uni-search-input { background: #1e293b; color: #e2e8f0; border-bottom-color: #334155; }
body.uni-dark .uni-search-result { color: #cbd5e1; border-bottom-color: #334155; }
body.uni-dark .uni-search-result:hover, body.uni-dark .uni-search-result.is-active { background: #334155; }
body.uni-dark .uni-footer { background: #1e293b; border-color: #334155; }

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 768px) {
    .uni-hero { padding: 28px 22px; }
    .uni-hero h1 { font-size: 1.7rem; }
    .uni-hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .uni-tools { display: none; }
}

/* ============================================================
   Print — strip nav/footer, list every chapter title
   ============================================================ */
@media print {
    .man-nav, .uni-sidebar, .uni-footer, .uni-search-overlay { display: none !important; }
    .uni-content { max-width: 100%; padding: 0; }
    .uni-hero { background: none; color: #000; border: 1px solid #ddd; }
    .uni-hero h1 { color: #000; }
    .uni-hero .lede { color: #444; }
    .uni-part, .uni-how, .uni-companion { break-inside: avoid; }
}