/* ═══════════════════════════════════════════════════════════════
   Corpusome — style.css
   ═══════════════════════════════════════════════════════════════ */

/* ── CSS Custom Properties ──────────────────────────────────────── */
:root {
  --bg:           #f1f5f9;
  --bg-card:      #ffffff;
  --bg-nav:       #0c1c36;
  --bg-nav-hover: rgba(255,255,255,0.07);
  --text:         #1e293b;
  --text-muted:   #64748b;
  --text-nav:     #94a3b8;
  --accent:       #1d5ea8;
  --accent-2:     #1e40af;
  --accent-light: #dbeafe;
  --border:       #e2e8f0;
  --radius:       6px;
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.06);
  --shadow:       0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:    0 4px 8px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #0f172a;
    --bg-card:      #1e293b;
    --bg-nav:       #020617;
    --bg-nav-hover: rgba(255,255,255,0.07);
    --text:         #e2e8f0;
    --text-muted:   #94a3b8;
    --text-nav:     #64748b;
    --accent:       #3b82f6;
    --accent-2:     #60a5fa;
    --accent-light: #1e3a5f;
    --border:       #334155;
    --shadow-sm:    0 1px 2px rgba(0,0,0,0.4);
    --shadow:       0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:    0 4px 8px rgba(0,0,0,0.3);
  }
}

/* ── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  font-size: 15px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); text-decoration: underline; }

/* ── Navigation ─────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: var(--bg-nav);
  height: 52px;
  display: flex; align-items: center;
  padding: 0 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-brand {
  color: #fff; font-weight: 700; font-size: 1.05rem;
  letter-spacing: -0.02em; margin-right: 2rem;
  white-space: nowrap; flex-shrink: 0; text-decoration: none;
}
.nav-brand:hover { color: #fff; text-decoration: none; }
.nav-brand .version {
  font-size: 0.62rem; font-weight: 400; color: #475569;
  margin-left: 4px; vertical-align: super;
}

.nav-links {
  display: flex; align-items: center; gap: 2px;
  flex: 1; overflow-x: auto; scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-link {
  color: var(--text-nav); font-size: 0.835rem; font-weight: 450;
  padding: 5px 10px; border-radius: 5px;
  white-space: nowrap; transition: background 0.12s, color 0.12s;
  text-decoration: none;
}
.nav-link:hover { background: var(--bg-nav-hover); color: #fff; text-decoration: none; }
.nav-link.active { background: rgba(255,255,255,0.10); color: #fff; }

.nav-hamburger {
  display: none; background: none; border: none;
  cursor: pointer; color: #fff; font-size: 1.2rem;
  margin-left: auto; padding: 6px;
}

.nav-mobile-menu {
  display: none;
  position: fixed; top: 52px; left: 0; right: 0; z-index: 999;
  background: var(--bg-nav);
  padding: 0.5rem 1rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.nav-mobile-menu.open { display: block; }
.nav-mobile-menu .nav-link { display: block; padding: 8px 10px; }

/* ── Layout ──────────────────────────────────────────────────────── */
.main { margin-top: 52px; min-height: calc(100vh - 52px - 58px); }
.container { max-width: 1220px; margin: 0 auto; padding: 2rem 1.5rem; }

.page-header {
  margin-bottom: 1.75rem; padding-bottom: 0.875rem;
  border-bottom: 1px solid var(--border);
}
.page-title {
  font-size: 1.625rem; font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 0.3rem;
}
.page-subtitle { color: var(--text-muted); font-size: 0.9rem; }

/* ── Hero Banner (Overview) ─────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, #0c1c36 0%, #0f2444 60%, #0c2d52 100%);
  color: #fff; padding: 3rem 1.5rem;
  text-align: center;
}
.hero-title {
  font-size: 2.5rem; font-weight: 800; letter-spacing: -0.03em;
  margin-bottom: 0.5rem; line-height: 1.1;
}
.hero-title .accent { color: #60a5fa; }
.hero-subtitle {
  font-size: 1.05rem; color: #94a3b8; max-width: 680px;
  margin: 0 auto 1.5rem; line-height: 1.65;
}
.hero-chips { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; }
.hero-chip {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  border-radius: 9999px; padding: 4px 14px;
  font-size: 0.78rem; font-weight: 500; color: #cbd5e1;
}

/* ── Stat Cards ──────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 1rem; margin-bottom: 2rem;
}
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.125rem 1.375rem;
  box-shadow: var(--shadow);
}
.stat-value {
  font-size: 1.875rem; font-weight: 700; line-height: 1;
  color: var(--accent); margin-bottom: 0.3rem;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.stat-sub   { font-size: 0.72rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ── Charts Grid ─────────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(460px, 1fr));
  gap: 1.25rem; margin-bottom: 2rem;
}
.charts-grid.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.chart-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.125rem 1.375rem;
  box-shadow: var(--shadow);
}
.chart-card.wide { grid-column: 1 / -1; }

.chart-title {
  font-size: 0.875rem; font-weight: 600; margin-bottom: 0.75rem; color: var(--text);
}
.chart-subtitle {
  font-size: 0.75rem; color: var(--text-muted); margin-top: -0.5rem; margin-bottom: 0.75rem;
}

.chart-box      { width: 100%; height: 300px; }
.chart-box-tall { width: 100%; height: 440px; }
.chart-box-wide { width: 100%; height: 380px; }

/* ── Badges ───────────────────────────────────────────────────────── */
.badge {
  display: inline-block; padding: 1px 8px;
  border-radius: 9999px; font-size: 0.7rem; font-weight: 600;
  white-space: nowrap; line-height: 1.6;
}
.badge-stool, .badge-16S    { background: #d1fae5; color: #065f46; }
.badge-oral                  { background: #fee2e2; color: #991b1b; }
.badge-skin                  { background: #ede9fe; color: #5b21b6; }
.badge-respiratory           { background: #e0f2fe; color: #075985; }
.badge-urogenital            { background: #fce7f3; color: #9d174d; }
.badge-milk                  { background: #fef3c7; color: #92400e; }
.badge-brain                 { background: #fde8d0; color: #92400e; }
.badge-Ferreiro2023          { background: #d1fae5; color: #065f46; }
.badge-Brain_16S             { background: #fde8d0; color: #92400e; }
.badge-TCGA_Poore2020        { background: #dbeafe; color: #1e3a5f; }
.badge-BALF_mNGS             { background: #e0f2fe; color: #0369a1; }
.badge-Hartwig_Battaglia2024 { background: #ede9fe; color: #4c1d95; }
.badge-MLRepo                { background: #ffe4e6; color: #9f1239; }
.badge-shotgun               { background: #fee2e2; color: #991b1b; }
.badge-healthy               { background: #d1fae5; color: #065f46; }
.badge-diseased, .badge-disease { background: #fee2e2; color: #991b1b; }
.badge-unlabeled             { background: #f1f5f9; color: #64748b; }
.badge-AGP                   { background: #d1fae5; color: #065f46; }
.badge-MGnify                { background: #fef3c7; color: #92400e; }
.badge-MGnify_full           { background: #dbeafe; color: #1d4ed8; }
.badge-curatedMetagenomicData { background: #ede9fe; color: #5b21b6; }

@media (prefers-color-scheme: dark) {
  .badge-stool, .badge-16S   { background: #064e3b; color: #6ee7b7; }
  .badge-oral                { background: #7f1d1d; color: #fca5a5; }
  .badge-skin                { background: #4c1d95; color: #ddd6fe; }
  .badge-respiratory         { background: #0c4a6e; color: #7dd3fc; }
  .badge-urogenital          { background: #831843; color: #fbcfe8; }
  .badge-milk                { background: #78350f; color: #fde68a; }
  .badge-brain               { background: #78350f; color: #fed7aa; }
  .badge-TCGA_Poore2020      { background: #1e3a5f; color: #93c5fd; }
  .badge-BALF_mNGS           { background: #0c4a6e; color: #7dd3fc; }
  .badge-Hartwig_Battaglia2024 { background: #3b0764; color: #e9d5ff; }
  .badge-MLRepo              { background: #881337; color: #fecdd3; }
  .badge-shotgun             { background: #7f1d1d; color: #fca5a5; }
  .badge-healthy             { background: #064e3b; color: #6ee7b7; }
  .badge-diseased, .badge-disease { background: #7f1d1d; color: #fca5a5; }
  .badge-unlabeled           { background: #1e293b; color: #94a3b8; }
  .badge-AGP                 { background: #064e3b; color: #6ee7b7; }
  .badge-MGnify              { background: #78350f; color: #fde68a; }
  .badge-MGnify_full         { background: #1e3a5f; color: #93c5fd; }
  .badge-curatedMetagenomicData { background: #4c1d95; color: #ddd6fe; }
}

/* ── Browse page filters ─────────────────────────────────────────── */
.filters-bar {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: flex-end;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  box-shadow: var(--shadow); margin-bottom: 1rem;
}
.filter-group { display: flex; flex-direction: column; gap: 3px; min-width: 130px; }
.filter-label {
  font-size: 0.68rem; font-weight: 700; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.filter-select, .filter-input {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-size: 0.835rem; padding: 5px 8px; outline: none;
  transition: border-color 0.12s; min-width: 0;
}
.filter-select:focus, .filter-input:focus {
  border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-light);
}
.filter-actions { display: flex; gap: 0.5rem; align-items: flex-end; }

.btn {
  border: none; border-radius: var(--radius); cursor: pointer;
  font-size: 0.835rem; font-weight: 500; padding: 5px 14px;
  white-space: nowrap; transition: all 0.12s; line-height: 1.6;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-2); }
.btn-secondary {
  background: var(--bg); color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--accent-light); color: var(--accent); }

.table-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.5rem; }

/* ── Tabulator overrides ─────────────────────────────────────────── */
.tabulator {
  font-size: 0.81rem !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  overflow: hidden;
  background: var(--bg-card) !important;
  color: var(--text) !important;
  font-family: inherit !important;
}
.tabulator .tabulator-header {
  background: var(--bg) !important;
  border-bottom: 2px solid var(--border) !important;
}
.tabulator .tabulator-col {
  background: var(--bg) !important;
  border-right: 1px solid var(--border) !important;
  color: var(--text-muted) !important;
}
.tabulator .tabulator-col .tabulator-col-title {
  font-size: 0.7rem; text-transform: uppercase;
  letter-spacing: 0.04em; font-weight: 700;
}
.tabulator-row {
  background: var(--bg-card) !important;
  color: var(--text) !important;
  border-bottom: 1px solid var(--border) !important;
}
.tabulator-row.tabulator-row-even { background: var(--bg) !important; }
.tabulator-row:hover { background: var(--accent-light) !important; }
.tabulator .tabulator-footer {
  background: var(--bg) !important;
  border-top: 1px solid var(--border) !important;
  color: var(--text-muted) !important;
}
.tabulator-page {
  background: var(--bg-card) !important; color: var(--text) !important;
  border: 1px solid var(--border) !important; border-radius: 4px !important;
  margin: 0 2px;
}
.tabulator-page.active {
  background: var(--accent) !important; color: #fff !important;
  border-color: var(--accent) !important;
}
.tabulator-page-size {
  background: var(--bg-card) !important; color: var(--text) !important;
  border: 1px solid var(--border) !important; border-radius: 4px !important;
}

/* ── Toggle / Controls ───────────────────────────────────────────── */
.controls-row {
  display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center;
  margin-bottom: 1rem;
}
.control-label {
  font-size: 0.78rem; font-weight: 600; color: var(--text-muted);
  white-space: nowrap;
}
.toggle-group {
  display: flex; border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  background: var(--bg-card);
}
.toggle-btn {
  background: none; border: none; cursor: pointer;
  padding: 5px 14px; font-size: 0.78rem; font-weight: 500;
  color: var(--text-muted); border-right: 1px solid var(--border);
  transition: all 0.12s;
}
.toggle-btn:last-child { border-right: none; }
.toggle-btn.active { background: var(--accent); color: #fff; }
.toggle-btn:hover:not(.active) { background: var(--accent-light); color: var(--accent); }

/* ── Section ─────────────────────────────────────────────────────── */
.section { margin-bottom: 2.5rem; }
.section-title { font-size: 1.0625rem; font-weight: 600; margin-bottom: 1rem; }
.section-subtitle { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.25rem; }

/* ── Documentation / Schema ──────────────────────────────────────── */
.schema-wrapper {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); margin-bottom: 2rem;
  overflow-x: auto;
}
.schema-table {
  width: 100%; border-collapse: collapse; font-size: 0.85rem;
}
.schema-table th {
  text-align: left; padding: 8px 14px; background: var(--bg);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted);
  border-bottom: 2px solid var(--border); white-space: nowrap;
}
.schema-table td {
  padding: 9px 14px; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.schema-table tr:last-child td { border-bottom: none; }
.schema-table code {
  background: var(--bg); border: 1px solid var(--border);
  padding: 1px 5px; border-radius: 3px;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.78rem;
}
.schema-table .type-tag {
  display: inline-block; padding: 1px 7px; border-radius: 9999px;
  font-size: 0.68rem; font-weight: 600; white-space: nowrap;
  background: #e0f2fe; color: #075985;
}
@media (prefers-color-scheme: dark) {
  .schema-table .type-tag { background: #0c4a6e; color: #7dd3fc; }
}

.pipeline-step {
  display: flex; gap: 1rem; margin-bottom: 1.125rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  box-shadow: var(--shadow-sm);
}
.step-number {
  flex-shrink: 0; width: 28px; height: 28px;
  background: var(--accent); color: #fff;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; margin-top: 2px;
}
.step-content h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.2rem; }
.step-content p  { font-size: 0.82rem; color: var(--text-muted); }

/* ── Cite / Code blocks ──────────────────────────────────────────── */
.cite-block {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.125rem;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.78rem; line-height: 1.7;
  white-space: pre-wrap; word-break: break-word;
  position: relative; margin: 0.625rem 0 1.5rem;
  box-shadow: var(--shadow-sm);
}
.copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: var(--accent); color: #fff; border: none;
  border-radius: 4px; padding: 3px 10px; font-size: 0.7rem;
  cursor: pointer; transition: background 0.12s; white-space: nowrap;
}
.copy-btn:hover { background: var(--accent-2); }
.copy-btn.copied { background: #059669; }

/* ── Download ────────────────────────────────────────────────────── */
.download-section {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); margin-bottom: 1.5rem;
  overflow-x: auto;
}
.download-table {
  width: 100%; border-collapse: collapse; font-size: 0.85rem;
}
.download-table th {
  text-align: left; padding: 8px 14px; background: var(--bg);
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--text-muted);
  border-bottom: 2px solid var(--border); white-space: nowrap;
}
.download-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.download-table tr:last-child td { border-bottom: none; }
.download-table .mono { font-family: monospace; font-size: 0.78rem; color: var(--text-muted); }

.download-btn {
  display: inline-flex; align-items: center; gap: 5px;
  background: var(--accent); color: #fff; border-radius: var(--radius);
  padding: 4px 12px; font-size: 0.78rem; font-weight: 500;
  text-decoration: none; transition: background 0.12s;
}
.download-btn:hover { background: var(--accent-2); text-decoration: none; color: #fff; }

/* ── Info / Alert boxes ──────────────────────────────────────────── */
.info-box {
  background: var(--accent-light); border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 0.75rem 1rem; font-size: 0.85rem;
  margin-bottom: 1.25rem; color: var(--text);
}

.doi-box {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px 16px;
  font-size: 0.875rem; box-shadow: var(--shadow-sm); margin-bottom: 1.5rem;
}

/* ── Release Changelog Timeline ─────────────────────────────────── */
.changelog {
  position: relative;
  padding-left: 2rem;
}
.changelog::before {
  content: '';
  position: absolute;
  left: 0.55rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: var(--border);
  border-radius: 1px;
}
.cl-entry {
  position: relative;
  margin-bottom: 2rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.cl-entry:last-child { margin-bottom: 0; }
.cl-dot {
  position: absolute;
  left: -1.6rem;
  top: 0.4rem;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--border);
  border: 2px solid var(--bg-card);
  flex-shrink: 0;
}
.cl-current .cl-dot {
  background: var(--accent);
  border-color: var(--bg-card);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}
.cl-body {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
}
.cl-current .cl-body {
  border-color: var(--accent);
  border-left-width: 3px;
}
.cl-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}
.cl-version {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
  font-family: monospace;
}
.cl-date {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.cl-delta {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  padding: 0.15rem 0.55rem;
  border-radius: 20px;
}
.cl-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}
.cl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 0.65rem;
}
.cl-list {
  margin: 0 0 0.75rem 1.1rem;
  padding: 0;
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.cl-list li strong { color: var(--text); }
.cl-total {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  margin-top: 0.25rem;
}
.cl-total strong { color: var(--text); }

/* ── Footer ──────────────────────────────────────────────────────── */
.footer {
  background: var(--bg-nav); color: #475569;
  font-size: 0.78rem; text-align: center; padding: 1.25rem;
}
.footer a { color: #60a5fa; }
.footer a:hover { color: #93c5fd; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .charts-grid { grid-template-columns: 1fr !important; }
  .stats-grid  { grid-template-columns: repeat(2, 1fr); }
  .container   { padding: 1.25rem 1rem; }
  .page-title  { font-size: 1.325rem; }
  .filters-bar { flex-direction: column; align-items: stretch; }
  .filter-group { min-width: auto; width: 100%; }
  .filter-select, .filter-input { width: 100%; }
  .hero { padding: 2rem 1rem; }
  .hero-title { font-size: 1.75rem; }
  .charts-grid.two-col { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat-value { font-size: 1.625rem; }
}