/* ============================================
   BROWSE.CSS — Search, document viewer, department
   browsing. Flat navy/green design system, no glass.
   ============================================ */

.doc-page {
    width: min(1180px, calc(100% - 28px));
    margin: 24px auto 40px;
}

.doc-shell {
    background: var(--clr-paper-alt);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.doc-hero {
    padding: clamp(24px, 4vw, 40px);
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.75fr);
    gap: var(--sp-5);
    border-bottom: 1px solid var(--clr-line);
}

.doc-eyebrow {
    display: inline-flex;
    gap: var(--sp-2);
    align-items: center;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.74rem;
    font-weight: 800;
    color: var(--clr-green-dk);
    margin-bottom: 10px;
}

.doc-hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3.6vw, 2.8rem);
    line-height: 1.1;
    color: var(--clr-ink);
    margin-bottom: 14px;
}

.doc-subtitle {
    max-width: 68ch;
    color: var(--clr-ink-soft);
    line-height: 1.7;
}

.doc-meta-strip {
    margin-top: var(--sp-5);
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
}

.doc-meta-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: 10px 14px;
    border-radius: 999px;
    background: var(--clr-green-soft);
    color: var(--clr-green-dk);
    border: 1px solid rgba(47, 143, 78, 0.18);
    font-size: 0.85rem;
    font-weight: 700;
}

.doc-hero-card {
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    background: var(--clr-paper);
    border: 1px solid var(--clr-line);
    display: grid;
    gap: var(--sp-3);
    align-content: center;
}

.doc-hero-card .mini-label {
    text-transform: uppercase;
    letter-spacing: 0.16em;
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--clr-ink-soft);
}

.doc-action-btn {
    padding: 11px 18px;
    background: var(--clr-navy);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    font-weight: 700;
    transition: background 0.15s ease;
}

.doc-action-btn:hover { background: var(--clr-navy-dk); }
.doc-action-btn.success { background: var(--clr-green); }
.doc-action-btn.success:hover { background: var(--clr-green-dk); }
.doc-action-btn[disabled] { background: var(--clr-ink-soft); cursor: not-allowed; opacity: 0.6; }

.doc-content-grid {
    padding: var(--sp-5) clamp(24px, 4vw, 40px) clamp(28px, 4vw, 40px);
    display: grid;
    gap: var(--sp-5);
}

.doc-info-card, .doc-abstract, .doc-viewer {
    background: var(--clr-paper-alt);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 22px;
}

.doc-metadata-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-4);
}

.doc-metadata-item {
    padding: 16px 18px;
    border-radius: var(--radius-md);
    background: var(--clr-surface);
    border: 1px solid var(--clr-line);
}

.doc-metadata-item strong, .doc-section-label {
    display: block;
    color: var(--clr-green-dk);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.doc-abstract p { line-height: 1.75; color: var(--clr-ink-soft); }

.doc-viewer-container {
    width: 100%;
    display: flex;
    justify-content: center;
    background: var(--clr-paper);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.doc-viewer-container embed, .doc-viewer-container iframe {
    width: 100% !important;
    height: 900px !important;
    border: none;
}

.doc-file-icon { font-size: 48px; margin-bottom: 15px; color: var(--clr-heading); }

.doc-cover-preview {
    margin-top: var(--sp-4);
    max-width: 220px;
    border-radius: var(--radius-md);
    border: 1px solid var(--clr-line);
    box-shadow: var(--shadow-md);
}

.not-found-page {
    width: min(600px, calc(100% - 28px));
    margin: 80px auto;
    text-align: center;
    padding: 40px;
    background: var(--clr-paper-alt);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-xl);
}

.not-found-page i { font-size: 40px; color: var(--clr-ink-soft); margin-bottom: 16px; }

@media (max-width: 860px) {
    .doc-hero, .doc-metadata-row { grid-template-columns: 1fr; }
    .doc-page { width: min(100% - 18px, 1180px); margin-top: 18px; }
    .doc-viewer-container embed, .doc-viewer-container iframe { height: 72vh !important; }
}

/* ===== SEARCH ===== */
.search-page {
    width: min(900px, calc(100% - 28px));
    margin: 24px auto 40px;
}

.search-shell {
    background: var(--clr-paper-alt);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: clamp(24px, 4vw, 40px);
}

.search-shell h1 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: var(--sp-2);
    text-align: center;
    color: var(--clr-ink);
}

.search-form {
    margin: var(--sp-5) 0;
    display: flex;
    gap: var(--sp-2);
}

.search-form input {
    flex: 1;
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--clr-line);
    font-size: 0.95rem;
}

.search-form button {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    border: none;
    background: var(--clr-navy);
    color: #fff;
    font-weight: 700;
    cursor: pointer;
}

.search-form button:hover { background: var(--clr-navy-dk); }

.search-info {
    text-align: center;
    margin-bottom: var(--sp-4);
    color: var(--clr-ink-soft);
    font-size: 0.9rem;
}

.search-results {
    display: grid;
    gap: var(--sp-3);
}

.search-result-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--clr-paper);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    transition: border-color 0.15s ease;
}

.search-result-card:hover { border-color: var(--clr-green); }

.search-result-type {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: var(--sp-2);
    background: var(--clr-navy);
    color: #fff;
}

.search-result-type.thesis   { background: #6d28d9; }
.search-result-type.capstone { background: var(--clr-green-dk); }
.search-result-type.book     { background: var(--clr-navy); }
.search-result-type.archive  { background: #b45309; }

.search-result-card h3 { font-family: var(--font-serif); font-size: 1rem; margin-bottom: var(--sp-1); color: var(--clr-ink); }
.search-result-card p  { font-size: 0.85rem; color: var(--clr-ink-soft); line-height: 1.5; }

.search-no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--clr-ink-soft);
}

/* ===== BROWSE / DOCUMENTARY LISTING ===== */
.browse-page {
    width: min(900px, calc(100% - 28px));
    margin: 24px auto 40px;
}

.browse-shell {
    background: var(--clr-paper-alt);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: clamp(24px, 4vw, 40px);
}

.browse-shell h1 { font-family: var(--font-serif); font-size: 1.8rem; text-align: center; color: var(--clr-ink); }
.browse-subtitle { text-align: center; color: var(--clr-ink-soft); margin: var(--sp-2) 0 var(--sp-5); }

.browse-section { margin-bottom: var(--sp-6); }
.browse-section h2 { font-family: var(--font-serif); font-size: 1.2rem; color: var(--clr-heading); margin-bottom: var(--sp-3); }

.browse-doc-card {
    display: flex;
    gap: var(--sp-3);
    padding: var(--sp-3);
    background: var(--clr-paper);
    border: 1px solid var(--clr-line);
    border-radius: var(--radius-md);
    margin-bottom: var(--sp-3);
}

.browse-doc-card img { width: 90px; height: 120px; object-fit: cover; border-radius: var(--radius-sm); flex-shrink: 0; }
.browse-doc-card h3 { font-family: var(--font-serif); font-size: 1rem; color: var(--clr-ink); margin-bottom: var(--sp-2); }
.browse-doc-card p { font-size: 0.85rem; color: var(--clr-ink-soft); margin-bottom: var(--sp-2); }
.browse-doc-actions { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-2); }

.browse-doc-actions .doc-action-btn { padding: 8px 14px; font-size: 0.82rem; }
.reading-list-btn.active { background: var(--clr-green) !important; }

/* ===== DEPARTMENTS ===== */
.dept-page { width: min(1000px, calc(100% - 28px)); margin: 24px auto 40px; }
.dept-shell {
    background: var(--clr-navy);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-xl);
    padding: clamp(24px, 4vw, 40px);
    color: var(--clr-on-navy);
}
.dept-shell h1 { font-family: var(--font-serif); font-size: 1.8rem; margin-bottom: var(--sp-2); }
.dept-shell .browse-subtitle { color: rgba(247,248,244,0.75); }

.dept-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--sp-4); margin: var(--sp-5) 0; }

.dept-card {
    display: block;
    text-decoration: none;
    color: inherit;
    background: var(--clr-navy-soft);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: var(--radius-lg);
    padding: var(--sp-4);
    transition: border-color 0.15s ease;
}
.dept-card:hover { border-color: var(--clr-green); }
.dept-card h3 { font-family: var(--font-serif); font-size: 1.05rem; margin-bottom: var(--sp-2); color: #fff; }
.dept-card p { font-size: 0.82rem; color: rgba(247,248,244,0.75); line-height: 1.6; }

.dept-card-btn {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: inherit;
    cursor: pointer;
}
.dept-course-picker { margin-top: var(--sp-3); }
.dept-course-picker select {
    width: 100%;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.2);
    background: var(--clr-navy);
    color: var(--clr-on-navy);
    font-size: 0.85rem;
}

.search-strand-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--clr-navy-soft);
    color: var(--clr-on-navy);
    border-radius: var(--radius-full, 999px);
    padding: 6px 14px;
    margin: var(--sp-2) 0 var(--sp-3);
    font-size: 0.85rem;
}
.search-strand-chip a { color: inherit; text-decoration: none; font-weight: 700; }

.upload-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: var(--sp-4); margin: var(--sp-4) 0 var(--sp-5); }
.upload-card {
    background: var(--clr-navy-soft);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: var(--radius-md);
    padding: var(--sp-3);
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}
.upload-card img { width: 100%; height: 150px; object-fit: cover; border-radius: var(--radius-sm); }
.upload-card h3 { font-family: var(--font-serif); font-size: 0.95rem; color: #fff; }