/* PopGeneticsPro — Population genetics for plants, from the field to the paper.
   The app's own stylesheet. Neutrals, scales, focus, the top bar, the block
   bar, buttons, messages and printing come from labg-base.css (shared by the
   whole LABG Suite); only PopGeneticsPro's identity and its own pieces are here. */

/* identity: teal primary and coral accent, plus the sky, gold and the ten
   cluster colours (in dark, --primary-dark is the LIGHTER tone: it is used
   for text and for the hovered button) */
:root {
  --primary-rgb: 20, 107, 122; --primary: #146b7a; --primary-dark: #0e5361;
  --accent-rgb: 217, 96, 63; --accent: #d9603f;
  --sky: #2f8fb8;
  --gold: #d9a227;
  --c1: #146b7a; --c2: #d9603f; --c3: #d9a227; --c4: #4c6fbf; --c5: #6fa83d; --c6: #9a5cc4;
  --c7: #cf4e86; --c8: #3fae9e; --c9: #8a6b4f; --c10: #5c6b8a;
  /* the same hues darkened for TEXT on light backgrounds (fills and figures keep the originals) */
  --sky-text: color-mix(in srgb, var(--sky) 68%, #000); --c4-text: color-mix(in srgb, var(--c4) 68%, #000);
  --c6-text: color-mix(in srgb, var(--c6) 68%, #000); --c8-text: color-mix(in srgb, var(--c8) 60%, #000);
  --gold-text: color-mix(in srgb, var(--gold) 60%, #000);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-rgb: 69, 182, 200; --primary: #45b6c8; --primary-dark: #86d0dc;
    --accent-rgb: 240, 132, 106; --accent: #f0846a;
    --sky: #57aede;
    --gold: #edbd4f;
    --c1: #45b6c8; --c2: #f0846a; --c3: #edbd4f; --c4: #7e9cf0; --c5: #9ad063; --c6: #bb8bef;
    --c7: #ef7cae; --c8: #5fd0c0; --c9: #c0a184; --c10: #93a4c4;
    --sky-text: var(--sky); --c4-text: var(--c4); --c6-text: var(--c6); --c8-text: var(--c8); --gold-text: var(--gold);
  }
}
:root[data-theme="dark"] {
  --primary-rgb: 69, 182, 200; --primary: #45b6c8; --primary-dark: #86d0dc;
  --accent-rgb: 240, 132, 106; --accent: #f0846a;
  --sky: #57aede;
  --gold: #edbd4f;
  --c1: #45b6c8; --c2: #f0846a; --c3: #edbd4f; --c4: #7e9cf0; --c5: #9ad063; --c6: #bb8bef;
  --c7: #ef7cae; --c8: #5fd0c0; --c9: #c0a184; --c10: #93a4c4;
    --sky-text: var(--sky); --c4-text: var(--c4); --c6-text: var(--c6); --c8-text: var(--c8); --gold-text: var(--gold);
}

/* the fixed bar holds two rows: keep anchors (simulator, theory, citation) clear of it */
html { scroll-padding-top: 108px; }
main { max-width: 1180px; margin: 0 auto; padding: 0 20px 80px; }
.topbar-inner { max-width: 1180px; }
.brand #brandLogo { display: block; flex-shrink: 0; }
.brand .brand-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- Hero (Block 1) ---------- */
.hero {
  position: relative; overflow: hidden; border-radius: 22px; margin: 22px 0 26px;
  background:
    radial-gradient(1200px 500px at 12% -10%, rgba(var(--primary-rgb), 0.22), transparent 60%),
    radial-gradient(900px 420px at 95% 8%, rgba(var(--accent-rgb), 0.18), transparent 60%),
    radial-gradient(600px 300px at 60% 110%, rgba(47,143,184,0.16), transparent 60%),
    linear-gradient(180deg, var(--card-bg), var(--bg-soft));
  border: 1px solid var(--border); box-shadow: var(--shadow);
}
.hero-inner { display: grid; grid-template-columns: 1.05fr 1fr; gap: 24px; align-items: center; padding: 48px 48px 40px; }
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; padding: 30px 22px; } }
.hero h1 { font-size: 3rem; line-height: 1.05; margin: 0 0 14px; letter-spacing: -1.4px; font-weight: 800; }
.hero h1 .accent { color: var(--primary-text); }
.hero .lead { font-size: 1.12rem; color: var(--text-muted); margin: 0 0 22px; max-width: 580px; }
.hero .lead b { color: var(--text); }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero-art { width: 100%; height: auto; max-height: 440px; }
.hero-art svg { width: 100%; height: auto; display: block; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 0.74rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--primary-text); margin-bottom: 14px; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--primary); border-radius: 2px; }
.badge-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 22px; }
.badge { font-size: 0.74rem; font-weight: 500; line-height: 1.55; white-space: normal; padding: 4px 11px; border-radius: 999px; background: var(--card-bg); border: 1px solid var(--border); color: var(--text-muted); }
.badge.ok::before { content: "✓ "; color: var(--success-text); }

/* Section headings */
.section-title { font-size: 1.5rem; letter-spacing: -0.5px; margin: 40px 0 6px; }
.section-sub { color: var(--text-muted); margin: 0 0 18px; max-width: 800px; }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 14px; }
.feature {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 18px 16px; box-shadow: var(--shadow); cursor: pointer; transition: transform .15s, border-color .15s;
  display: flex; flex-direction: column; gap: 8px; position: relative;
}
.feature:hover { transform: translateY(-2px); border-color: var(--primary); }
.feature .f-art { height: 110px; border-radius: 10px; background: var(--bg-soft); overflow: hidden; display: flex; align-items: center; justify-content: center; }
.feature .f-art svg { width: 100%; height: 100%; }
.feature .f-num { position: absolute; top: 10px; left: 10px; width: 26px; height: 26px; border-radius: 50%; background: var(--primary); color: var(--on-primary); font-size: 0.78rem; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.feature h3 { margin: 4px 0 0; font-size: 1rem; }
.feature p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }
.feature .f-tag { font-size: 0.7rem; font-weight: 600; color: var(--accent-text); text-transform: uppercase; letter-spacing: .06em; }
.feature.soon .f-tag { color: var(--text-muted); }

/* Workflow strip */
.workflow { display: flex; gap: 0; align-items: stretch; overflow-x: auto; padding: 6px 0 12px; }
.wf-step { flex: 1; min-width: 130px; position: relative; padding: 12px 14px 12px 18px; background: var(--card-bg); border: 1px solid var(--border); }
.wf-step:first-child { border-radius: 10px 0 0 10px; }
.wf-step:last-child { border-radius: 0 10px 10px 0; }
.wf-step + .wf-step { border-left: none; }
.wf-step .wf-n { font-size: 0.68rem; color: var(--primary-text); font-weight: 700; letter-spacing: .08em; }
.wf-step .wf-t { font-weight: 600; font-size: 0.84rem; }
.wf-step .wf-d { font-size: 0.74rem; color: var(--text-muted); }

/* Method gallery */
.method-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; }
.method-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 12px; text-align: center; transition: border-color .15s, transform .15s; }
.method-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.method-card svg { width: 100%; height: 128px; }
.method-card .m-name { font-weight: 600; font-size: 0.88rem; margin-top: 8px; }
.method-card .m-sub { font-size: 0.74rem; color: var(--text-muted); }
.method-card .m-fam { display: inline-block; font-size: 0.66rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700; padding: 2px 8px; border-radius: 999px; margin-bottom: 6px; }
.m-fam.hier { background: var(--primary-soft); color: var(--primary-text); }
.m-fam.part { background: var(--accent-soft); color: var(--accent-text); }
.m-fam.adv  { background: rgba(47,143,184,0.14); color: var(--sky-text); }
.m-fam.val  { background: rgba(207,78,134,0.13); color: var(--c4-text); }

/* Data-type cards */
.dtype-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.dtype { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; display: flex; flex-direction: column; gap: 6px; }
.dtype svg { width: 100%; height: 64px; }
.dtype h4 { margin: 4px 0 0; font-size: 0.92rem; }
.dtype p { margin: 0; font-size: 0.8rem; color: var(--text-muted); }
.dtype .dt-dist { font-size: 0.72rem; color: var(--primary-text); font-weight: 600; }

/* Why grid */
.why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.why { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.why .w-icon { font-size: 1.5rem; margin-bottom: 6px; }
.why h4 { margin: 0 0 4px; font-size: 0.95rem; text-transform: none; letter-spacing: 0; color: var(--text); }
.why p { margin: 0; font-size: 0.85rem; color: var(--text-muted); }

/* ---------- Playground (interactive demo on the home page) ---------- */
.playground { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px 20px 16px; }
.pg-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 16px; }
@media (max-width: 900px) { .pg-grid { grid-template-columns: 1fr; } }
.pg-pane { border: 1px solid var(--border); border-radius: 10px; background: var(--bg-soft); overflow: hidden; }
.pg-pane svg { width: 100%; height: auto; display: block; }
.pg-pane .pg-title { font-size: 0.72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--text-muted); padding: 8px 12px 0; }
.pg-controls { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.pg-controls .inline-label { font-size: 0.82rem; }
.pg-controls select, .pg-controls input[type=range] { vertical-align: middle; }
.pg-status { font-size: 0.82rem; color: var(--text-muted); margin-top: 10px; min-height: 1.4em; }
.pg-status b { color: var(--text); }
.pg-canvas-wrap { cursor: crosshair; }

/* ---------- Cards ---------- */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 26px; margin-bottom: 20px; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 4px; font-size: 1.28rem; letter-spacing: -0.3px; }
.card h3 { font-size: 1.02rem; margin: 18px 0 6px; }
.card h4 { font-size: 0.76rem; margin: 0 0 8px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); font-weight: 700; }
.hint { color: var(--text-muted); font-size: 0.88rem; margin: 4px 0 12px; }
.step-panel { display: none; }
.step-panel.active { display: block; }
.card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.panel-title { display: flex; align-items: center; gap: 14px; margin: 22px 0 16px; }
.panel-title .pt-num { width: 40px; height: 40px; border-radius: 12px; background: var(--primary); color: var(--on-primary); font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; }
.panel-title h2 { margin: 0; font-size: 1.5rem; letter-spacing: -0.5px; }
.panel-title p { margin: 0; color: var(--text-muted); font-size: 0.9rem; }

/* ---------- Theory (accordion) ---------- */
.theory-card { border-left: 3px solid var(--accent); }
.theory-intro { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; margin-bottom: 8px; }
.theory-intro p { margin: 0; color: var(--text-muted); font-size: 0.92rem; flex: 1; min-width: 260px; }
.acc { border-top: 1px solid var(--border); }
.acc:first-of-type { border-top: none; }
.acc > summary { cursor: pointer; padding: 12px 4px; font-weight: 600; font-size: 0.95rem; list-style: none; display: flex; align-items: center; gap: 10px; }
.acc > summary::-webkit-details-marker { display: none; }
.acc > summary::before { content: "▸"; color: var(--accent-text); font-size: 0.85rem; transition: transform .15s; display: inline-block; width: 12px; }
.acc[open] > summary::before { transform: rotate(90deg); }
.acc > summary:hover { color: var(--primary-text); }
.acc > summary .acc-tag { margin-left: auto; font-size: 0.68rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .06em; }
.acc .acc-body { padding: 2px 4px 18px 26px; font-size: 0.9rem; }
.acc .acc-body p { margin: 0 0 10px; }
.acc .acc-body ul, .acc .acc-body ol { margin: 0 0 12px; padding-left: 20px; }
.acc .acc-body li { margin-bottom: 6px; }
.acc .acc-body table { margin: 8px 0 14px; }
.theory-fig { float: right; width: 300px; margin: 0 0 12px 18px; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); padding: 6px; }
.theory-fig svg { width: 100%; height: auto; display: block; }
.theory-fig .cap { font-size: 0.72rem; color: var(--text-muted); text-align: center; padding: 4px 6px 2px; }
.theory-fig.wide { float: none; width: 100%; max-width: 760px; margin: 6px 0 14px; }
@media (max-width: 760px) { .theory-fig { float: none; width: 100%; margin: 0 0 12px; } }
.clearfix::after { content: ""; display: table; clear: both; }

.formula { font-family: var(--mono); background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin: 10px 0; font-size: 0.86rem; overflow-x: auto; white-space: pre; line-height: 1.7; }
code { font-family: var(--mono); background: var(--bg-soft); padding: 1px 5px; border-radius: 4px; font-size: 0.86em; }
.callout { border-left: 3px solid var(--primary); background: var(--bg-soft); padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 12px 0; font-size: 0.88rem; }
.callout.warn { border-left-color: var(--warning); }
.callout.crit { border-left-color: var(--danger); }
.callout.tip { border-left-color: var(--sky); }
/* only a bold title written directly in the callout; bold words inside a wrapped sentence stay inline */
.callout > b:first-child { display: block; margin-bottom: 2px; }
.good-bad { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 10px 0; }
@media (max-width: 700px) { .good-bad { grid-template-columns: 1fr; } }
.good-bad > div { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; font-size: 0.84rem; }
.good-bad .good { border-color: rgba(47,158,68,0.4); background: rgba(47,158,68,0.06); }
.good-bad .bad { border-color: rgba(201,58,44,0.4); background: rgba(201,58,44,0.06); }
.good-bad h5 { margin: 0 0 6px; font-size: 0.8rem; text-transform: uppercase; letter-spacing: .05em; }
.good-bad .good h5 { color: var(--success-text); } .good-bad .bad h5 { color: var(--danger-text); }
.mini-table { font-family: var(--mono); font-size: 0.78rem; border-collapse: collapse; }
.mini-table td, .mini-table th { border: 1px solid var(--border-strong); padding: 2px 8px; }
.mini-table th { background: var(--bg-soft); }

/* Glossary chips */
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0 10px; }
.chip { font-size: 0.76rem; padding: 3px 10px; border-radius: 999px; background: var(--bg-soft); border: 1px solid var(--border); }
.chip.p { background: var(--primary-soft); border-color: rgba(var(--primary-rgb), 0.25); color: var(--primary-text); }
.chip.a { background: var(--accent-soft); border-color: rgba(var(--accent-rgb), 0.3); color: var(--accent-text); }

/* ---------- Forms ---------- */
input[type=text], input[type=number], select, textarea { padding: 8px 11px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--card-bg); color: var(--text); font-size: 0.9rem; max-width: 100%; font-family: inherit; }
input[type=color] { width: 40px; height: 28px; padding: 2px; border-radius: 6px; border: 1px solid var(--border-strong); background: var(--card-bg); cursor: pointer; }
/* white on the coral fails 4.5:1 in both themes: dark text on it */
.btn-accent { background: var(--btn-negro); color: var(--btn-negro-texto); border-color: rgba(212, 168, 72, .5); }   /* marca LABG: negro con letras de oro */
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 14px 0 0; }
.inline-label { font-size: 0.88rem; color: var(--text-muted); display: inline-flex; gap: 7px; align-items: center; flex-wrap: wrap; max-width: 100%; min-width: 0; }
.inline-label > select { min-width: 0; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; cursor: pointer; margin-bottom: 6px; }
.checkbox-label.off { color: var(--text-muted); cursor: default; }
.checkbox-label .checkbox-label { margin-bottom: 0; }
.field-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin: 10px 0; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field > label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
/* symbols that must keep their case inside upper-case labels (α, r̄_d) */
.nc { text-transform: none; letter-spacing: 0; }
.field > .field-help { font-size: 0.78rem; color: var(--text-muted); }
.range-val { font-family: var(--mono); font-size: 0.74rem; color: var(--text); background: var(--bg-soft); border-radius: 5px; padding: 1px 5px; min-width: 34px; text-align: center; }

/* ---------- Drop zone ---------- */
.drop-zone { border: 2px dashed var(--border-strong); border-radius: var(--radius); padding: 34px 20px; text-align: center; cursor: pointer; background: var(--bg-soft); transition: border-color .15s, background .15s; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--primary); background: var(--primary-soft); }
.drop-zone .dz-icon { width: 52px; height: 52px; margin: 0 auto 8px; }
.drop-zone p { margin: 4px 0; font-size: 0.92rem; }
.format-chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 10px; }
.format-chips span { font-size: 0.7rem; padding: 2px 8px; border-radius: 6px; background: var(--card-bg); border: 1px solid var(--border); color: var(--text-muted); font-family: var(--mono); }

/* ---------- Messages ---------- */
.messages { margin-top: 14px; }

/* ---------- Tables ---------- */
table { border-collapse: collapse; width: 100%; font-size: 0.86rem; }
caption { caption-side: top; text-align: left; padding: 8px 12px; font-weight: 600; font-size: 0.86rem; }
thead th { background: var(--bg-soft); text-align: left; padding: 9px 12px; font-weight: 600; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 0; }
tbody td { padding: 7px 12px; border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg-soft); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.total td { font-weight: 700; border-top: 2px solid var(--border-strong); }
tr.dim td { color: var(--text-muted); }
.chooser td:first-child { font-weight: 600; white-space: nowrap; }
.chooser td { font-size: 0.83rem; }

/* ---------- Stat tiles ---------- */
.results-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 16px 0; }
.stat-tile { background: var(--bg-soft); border-radius: 10px; padding: 12px 16px; }
.stat-tile .stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.stat-tile .stat-value { font-size: 1.35rem; font-weight: 700; margin-top: 2px; line-height: 1.2; }
.stat-tile .stat-sub { font-size: 0.75rem; color: var(--text-muted); }
.stat-tile.ok { box-shadow: inset 3px 0 0 var(--success); }
.stat-tile.warn { box-shadow: inset 3px 0 0 var(--warning); }
.stat-tile.bad { box-shadow: inset 3px 0 0 var(--danger); }

/* ---------- Figures (shared with later blocks) ---------- */
.fig-block { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin: 14px 0; background: var(--card-bg); }
.fig-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.fig-head h4 { margin: 0; }
.fig-canvas { overflow-x: auto; text-align: center; background: var(--card-bg); border-radius: 8px; }
.fig-canvas svg { max-width: 100%; height: auto; }
.fig-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 900px) { .fig-grid { grid-template-columns: 1fr; } }

/* ---------- Misc ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }
.divider { height: 1px; background: var(--border); margin: 20px 0; border: none; }
.footer-note { text-align: center; color: var(--text-muted); font-size: 0.8rem; padding: 10px 20px 40px; }
.kbd { font-family: var(--mono); font-size: 0.78rem; border: 1px solid var(--border-strong); border-bottom-width: 2px; border-radius: 5px; padding: 0 5px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.tab { font-family: inherit; font-size: 0.84rem; padding: 7px 13px; border-radius: 9px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; }
.tab.active { background: var(--primary-soft); color: var(--primary-text); border-color: rgba(var(--primary-rgb), 0.3); font-weight: 600; }
.next-bar { display: flex; justify-content: flex-end; gap: 10px; margin: 6px 0 30px; }
.soon-box { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.soon-box svg { width: 220px; height: 130px; margin-bottom: 10px; }

/* art colour classes: SVG illustrations use CSS variables so they follow the theme */
.art-p { fill: var(--primary); } .art-p2 { fill: var(--primary-dark); } .art-a { fill: var(--accent); }
.art-s { fill: var(--sky); }
.art-line { stroke: var(--text-muted); fill: none; } .art-bg { fill: var(--bg-soft); }
.art-txt { fill: var(--text); font-family: inherit; } .art-mut { fill: var(--text-muted); }
.art-card { fill: var(--card-bg); stroke: var(--border); }
.art-ax { stroke: var(--border-strong); fill: none; }
.art-c1 { fill: var(--c1); } .art-c2 { fill: var(--c2); } .art-c3 { fill: var(--c3); } .art-c4 { fill: var(--c4); } .art-c5 { fill: var(--c5); } .art-c6 { fill: var(--c6); }
.art-l1 { stroke: var(--c1); fill: none; } .art-l2 { stroke: var(--c2); fill: none; } .art-l3 { stroke: var(--c3); fill: none; } .art-l4 { stroke: var(--c4); fill: none; } .art-l5 { stroke: var(--c5); fill: none; } .art-l6 { stroke: var(--c6); fill: none; }

/* ---------- Block 2: variable configurator, checks, verdict ---------- */
.var-table td { white-space: nowrap; }
.var-table select { padding: 5px 8px; font-size: 0.82rem; border-radius: 6px; }
.var-table input[type=text] { padding: 4px 6px; font-size: 0.78rem; width: 150px; }
.var-name { font-weight: 600; }
.pill { display: inline-block; font-size: 0.7rem; padding: 2px 8px; border-radius: 999px; background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-muted); }
.pill.quant { background: rgba(var(--primary-rgb), 0.12); border-color: rgba(var(--primary-rgb), 0.3); color: var(--primary-text); }
.pill.binary { background: rgba(47,143,184,0.14); border-color: rgba(47,143,184,0.35); color: var(--sky-text); }
.pill.nominal { background: var(--accent-soft); border-color: rgba(var(--accent-rgb), 0.35); color: var(--accent-text); }
.pill.ordinal { background: rgba(123,176,65,0.16); border-color: rgba(123,176,65,0.4); color: #5a8a2a; }
.pill.count { background: rgba(207,78,134,0.12); border-color: rgba(207,78,134,0.35); color: var(--c4-text); }
.pill.id { background: var(--bg-soft); color: var(--text-muted); }
.flag { font-size: 0.74rem; color: var(--warning-text); }
.flag.bad { color: var(--danger-text); }
.flag.ok { color: var(--success-text); }
.spark { display: block; }
.role-legend { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 8px; margin: 8px 0 14px; }
.role-item { display: flex; gap: 10px; align-items: flex-start; font-size: 0.82rem; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; }
.role-item .r-dot { width: 12px; height: 12px; border-radius: 3px; margin-top: 4px; flex-shrink: 0; }
.role-item b { display: block; }
.role-item span { color: var(--text-muted); }
.design-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; margin: 12px 0; }
.ds-item { background: var(--bg-soft); border-radius: 10px; padding: 10px 14px; }
.ds-item .ds-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); font-weight: 700; }
.ds-item .ds-value { font-weight: 600; font-size: 0.95rem; margin-top: 2px; word-break: break-word; }
.ds-item .ds-sub { font-size: 0.74rem; color: var(--text-muted); }
.check-list { list-style: none; padding: 0; margin: 10px 0 0; }
.check-item { display: flex; gap: 12px; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border); margin-bottom: 8px; background: var(--card-bg); align-items: flex-start; }
.check-item .ck-icon { font-size: 1.1rem; line-height: 1.3; flex-shrink: 0; width: 22px; text-align: center; }
.check-item .ck-body { flex: 1; min-width: 0; }
.check-item .ck-title { font-weight: 600; font-size: 0.92rem; }
.check-item .ck-text { font-size: 0.85rem; color: var(--text-muted); }
.check-item .ck-text b { color: var(--text); }
.check-item.ok { border-left: 3px solid var(--success); }
.check-item.warn { border-left: 3px solid var(--warning); }
.check-item.bad { border-left: 3px solid var(--danger); }
.check-item.info { border-left: 3px solid var(--sky); }
.verdict { display: flex; align-items: center; gap: 18px; padding: 18px 22px; border-radius: var(--radius); background: var(--bg-soft); margin: 4px 0 16px; flex-wrap: wrap; }
.verdict .grade { font-size: 2.6rem; font-weight: 800; line-height: 1; min-width: 74px; text-align: center; }
.verdict .grade small { display: block; font-size: 0.66rem; font-weight: 600; letter-spacing: .08em; color: var(--text-muted); text-transform: uppercase; }
.verdict .v-text { flex: 1; min-width: 240px; font-size: 0.92rem; }
.grade.g-a { color: var(--success-text); } .grade.g-b { color: var(--sky-text); } .grade.g-c { color: var(--warning-text); } .grade.g-d { color: var(--danger-text); }
.example-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); gap: 10px; margin-top: 10px; }
.example-btn { text-align: left; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--card-bg); cursor: pointer; font-family: inherit; color: var(--text); transition: border-color .15s; }
.example-btn:hover { border-color: var(--primary); }
.example-btn b { display: block; font-size: 0.86rem; }
.example-btn small { color: var(--text-muted); font-size: 0.75rem; }
.fig-tools { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; border-top: 1px dashed var(--border); margin-top: 10px; padding-top: 10px; }
.fig-tools .inline-label { font-size: 0.8rem; }
.fig-tools select { padding: 5px 8px; font-size: 0.8rem; }
.fig-tabs { display: flex; gap: 4px; margin-top: 8px; }
.fig-tab { font-family: inherit; font-size: 0.78rem; padding: 5px 10px; border-radius: 7px; border: 1px solid var(--border); background: transparent; color: var(--text-muted); cursor: pointer; }
.fig-tab.active { background: var(--primary-soft); color: var(--primary-text); border-color: rgba(var(--primary-rgb), 0.3); font-weight: 600; }
.fig-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 10px; padding: 10px 0 0; margin-top: 4px; }
.fig-opts .inline-label { font-size: 0.8rem; }
.fig-opts input[type=range] { flex: 1; min-width: 90px; }
.fig-opts input[type=text] { width: 100%; }
details.fig-editor > summary { cursor: pointer; font-size: 0.82rem; color: var(--primary-text); padding: 4px 0; }
.color-row { display: flex; flex-wrap: wrap; gap: 8px; }
.color-item { display: inline-flex; flex-direction: column; align-items: center; gap: 2px; font-size: 0.68rem; color: var(--text-muted); max-width: 70px; }
.color-item small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 70px; }
.loading { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--border-strong); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.prep-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; margin: 10px 0; }
.reco { border: 1px solid rgba(var(--primary-rgb), 0.3); background: var(--primary-soft); border-radius: 12px; padding: 14px 16px; margin: 12px 0; }
.reco h4 { color: var(--primary-text); margin-bottom: 6px; }
.reco .reco-row { display: flex; gap: 14px; flex-wrap: wrap; font-size: 0.88rem; }
.reco .reco-row > div { min-width: 160px; }
.reco .reco-row b { display: block; font-size: 0.7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); }

/* ---------- Block 7: cluster characterisation cards ---------- */
.cluster-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; margin: 12px 0; }
.cluster-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px 14px; }
.cluster-card h4 { text-transform: none; letter-spacing: 0; font-size: 1rem; margin-bottom: 6px; }
.cluster-card p { margin: 0; font-size: 0.86rem; line-height: 1.5; }
#treeRules ol { padding-left: 20px; font-size: 0.9rem; }

/* ---------- Home: citation card ---------- */
.cite-card { border-left: 3px solid var(--primary); }
.cite-ref { font-size: 1rem; line-height: 1.6; margin: 0; padding: 12px 16px; background: var(--bg-soft); border-radius: 10px; }
.cite-ref a { word-break: break-all; }
.cite-card .formula { white-space: pre; }

/* ---------- Block 8: report preview ---------- */
.rp-frame { width: 100%; height: 820px; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
#treeRules li { margin-bottom: 6px; }

/* ================================================================
   PopGeneticsPro additions
   ================================================================ */

/* extra palette classes for SVG art (up to 10 genetic clusters) */
.art-c7 { fill: var(--c7); } .art-c8 { fill: var(--c8); } .art-c9 { fill: var(--c9); } .art-c10 { fill: var(--c10); }
.art-l7 { stroke: var(--c7); fill: none; } .art-l8 { stroke: var(--c8); fill: none; }
.art-gold { fill: var(--gold); } .art-lg { stroke: var(--gold); fill: none; }
.art-lp { stroke: var(--primary); fill: none; } .art-la { stroke: var(--accent); fill: none; }
.art-ls { stroke: var(--sky); fill: none; }
.art-none { fill: none; }

/* method family chips */
.m-fam.div { background: var(--primary-soft); color: var(--primary-text); }
.m-fam.str { background: var(--accent-soft); color: var(--accent-text); }
.m-fam.dst { background: rgba(47,143,184,0.14); color: var(--sky-text); }
.m-fam.bay { background: rgba(154,92,196,0.15); color: var(--c6-text); }
.m-fam.dna { background: rgba(63,174,158,0.15); color: var(--c8-text); }
.m-fam.dem { background: rgba(217,162,39,0.16); color: var(--gold-text); }

/* ---------- Home: the marker-type strip ---------- */
.marker-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 10px; }
.marker { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.marker svg { width: 100%; height: 56px; display: block; }
.marker .mk-t { font-weight: 700; font-size: 0.86rem; margin-top: 6px; }
.marker .mk-s { font-size: 0.76rem; color: var(--text-muted); }
.marker .mk-k { display: inline-block; font-size: 0.66rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: 1px 7px; border-radius: 999px; margin-top: 6px; }
.mk-k.codom { background: var(--primary-soft); color: var(--primary-text); }
.mk-k.domin { background: var(--accent-soft); color: var(--accent-text); }
.mk-k.seq { background: rgba(63,174,158,0.16); color: var(--c8-text); }
.mk-k.morph { background: rgba(217,162,39,0.18); color: var(--gold-text); }

/* ---------- Home: simulator (Wright-Fisher playground) ---------- */
.sim-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 16px; }
@media (max-width: 950px) { .sim-grid { grid-template-columns: 1fr; } }
.sim-side { display: flex; flex-direction: column; gap: 12px; }
.sim-readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 8px; }
.sim-readout .rd { background: var(--bg-soft); border-radius: 9px; padding: 7px 10px; }
.sim-readout .rd-l { font-size: 0.64rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); font-weight: 700; }
.sim-readout .rd-v { font-size: 1.05rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.slider-row { display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center; font-size: 0.82rem; }
.slider-row label { color: var(--text-muted); white-space: nowrap; }
.slider-row input[type=range] { width: 100%; accent-color: var(--primary); }

/* ---------- Home: comparison table with the classic programs ---------- */
.compare-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.compare-table { font-size: 0.82rem; }
.compare-table th:first-child, .compare-table td:first-child { text-align: left; font-weight: 600; white-space: nowrap; }
.compare-table td { text-align: center; }
.compare-table .yes { color: var(--success-text); font-weight: 700; }
.compare-table .no { color: var(--text-muted); opacity: .55; }
.compare-table .part { color: var(--warning-text); font-weight: 700; }
.compare-table thead th { text-align: center; }
.compare-table .us { background: var(--primary-soft); }

/* ---------- Home: citation card ---------- */
.cite-box { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; font-size: 0.86rem; }
.cite-box .cite-ref { font-family: var(--mono); font-size: 0.78rem; background: var(--card-bg); border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; margin: 8px 0; }
.ref-list { font-size: 0.82rem; color: var(--text-muted); columns: 2; column-gap: 26px; }
@media (max-width: 760px) { .ref-list { columns: 1; } }
.ref-list li { margin-bottom: 7px; break-inside: avoid; }
.ref-list b { color: var(--text); }

/* ---------- Genotype / allele rendering (used from Block 2 on) ---------- */
.allele-chip { font-family: var(--mono); font-size: 0.76rem; padding: 1px 6px; border-radius: 5px; background: var(--bg-soft); border: 1px solid var(--border); }
.geno-cell { font-family: var(--mono); font-size: 0.78rem; white-space: nowrap; }
.geno-het { color: var(--accent-text); } .geno-hom { color: var(--text); } .geno-miss { color: var(--text-muted); opacity: .6; }
.pill.codom { background: var(--primary-soft); border-color: rgba(var(--primary-rgb), 0.3); color: var(--primary-text); }
.pill.domin { background: var(--accent-soft); border-color: rgba(var(--accent-rgb), 0.32); color: var(--accent-text); }
.pill.hap { background: rgba(63,174,158,0.16); border-color: rgba(63,174,158,0.35); color: var(--c8-text); }
.pill.seq { background: rgba(47,143,184,0.14); border-color: rgba(47,143,184,0.33); color: var(--sky-text); }

/* ---------- DNA hero animation ---------- */
@media (prefers-reduced-motion: no-preference) {
  .helix-rung { animation: rung 5.5s ease-in-out infinite; }
  @keyframes rung { 0%,100% { opacity: .35; } 50% { opacity: 1; } }
}

/* ---------- Block 2: what you can run ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 10px; }
.cap { display: flex; gap: 11px; align-items: flex-start; border: 1px solid var(--border); border-radius: 11px; padding: 11px 13px; background: var(--card-bg); }
.cap.ok { border-color: rgba(47,158,68,0.4); background: rgba(47,158,68,0.05); }
.cap.off { opacity: 0.72; }
.cap-mark { width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.8rem; flex-shrink: 0; }
.cap.ok .cap-mark { background: var(--success-text); color: var(--on-primary); }
.cap.off .cap-mark { background: var(--bg-soft); color: var(--text-muted); }
.cap-name { font-weight: 600; font-size: 0.9rem; }
.cap-block { font-size: 0.66rem; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); font-weight: 700; margin-left: 4px; }
.cap-sub { font-size: 0.8rem; color: var(--text-muted); }

/* ---------- Block 7: MCMC progress ---------- */
.progress { position: relative; height: 26px; border-radius: 8px; background: var(--bg-soft); border: 1px solid var(--border); overflow: hidden; margin-top: 12px; }
.progress-bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--primary), var(--sky)); transition: width .25s; }
.progress-text { position: absolute; inset: 0; display: flex; align-items: center; padding: 0 12px; font-size: 0.78rem; color: var(--text); font-family: var(--mono); }
/* ending of a background job (popBarEnd): full and green with a check mark, or red with a cross */
.progress .lw-imark { position: absolute; right: 4px; top: 50%; margin-top: -9px; width: 18px; height: 18px; }
.progress.is-done .progress-bar { width: 100% !important; background: var(--success-soft); }
.progress.is-failed .progress-bar { background: var(--danger-soft); }
.progress.is-done { border-color: var(--success); }
.progress.is-failed { border-color: var(--danger); }
.progress.is-done .progress-text { color: var(--success-text); font-weight: 600; }
.progress.is-failed .progress-text { color: var(--danger-text); }
.progress.is-done .lw-imark, .progress.is-failed .lw-imark { opacity: 1; transform: none; }
.progress.is-done .lw-check { stroke-dashoffset: 0; }
.progress.is-failed .lw-disc { fill: var(--danger); }
.progress.is-failed .lw-check { display: none; }
.progress.is-failed .lw-cross { display: inline; }

/* ---------- Block 2: template designer ---------- */
.tpl-banner { display: flex; align-items: center; gap: 16px; margin-top: 16px; padding: 14px 18px; border-radius: 12px;
  background: linear-gradient(100deg, var(--accent-soft), var(--primary-soft)); border: 1px solid var(--border); flex-wrap: wrap; }
.tpl-banner-art svg { width: 64px; height: 52px; display: block; }
.tpl-banner-text { flex: 1; min-width: 260px; font-size: 0.88rem; color: var(--text-muted); }
.tpl-banner-text b { display: block; color: var(--text); font-size: 0.98rem; margin-bottom: 2px; }
.designer { border-top: 3px solid var(--accent); }
.dz-sec { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 18px 0 6px; border-top: 1px solid var(--border); }
.dz-sec:first-of-type { border-top: none; }
.dz-num { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #161b2a; font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; margin-top: 2px; }
.dz-body { min-width: 0; }
.dz-body > h3 { margin: 4px 0 10px; }
.dz-sec.locked { opacity: .55; pointer-events: none; }
.kind-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.kind-tile { text-align: left; font-family: inherit; color: var(--text); background: var(--card-bg); border: 1.5px solid var(--border); border-radius: 12px; padding: 10px 12px 12px; cursor: pointer; transition: border-color .15s, transform .15s, box-shadow .15s; }
.kind-tile:hover { border-color: var(--primary); transform: translateY(-2px); }
.kind-tile svg { width: 100%; height: 50px; display: block; }
.kind-tile .kt-t { font-weight: 700; font-size: 0.88rem; margin-top: 6px; }
.kind-tile .kt-s { font-size: 0.74rem; color: var(--text-muted); line-height: 1.35; }
.kind-tile.active { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 0 0 3px var(--primary-soft); }
.kind-tile.active .kt-t::after { content: " ✓"; color: var(--primary-text); }
.dz-inline { align-items: center; gap: 14px; margin: 12px 0 4px; }
.dz-inline .inline-label { display: inline-flex; align-items: center; gap: 8px; font-size: 0.86rem; }
.dz-table table { font-size: 0.84rem; }
.dz-table td { padding: 3px 6px; }
.dz-table input[type=text], .dz-table input[type=number], .dz-table select { padding: 5px 8px; font-size: 0.84rem; border-radius: 6px; width: 100%; min-width: 70px; }
.dz-table input.nm { min-width: 150px; }
.dz-table .rm { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; padding: 2px 6px; border-radius: 6px; }
.dz-table .rm:hover { color: var(--danger-text); background: var(--bg-soft); }
.dz-table tfoot td { font-weight: 700; border-top: 1px solid var(--border-strong); }
.dz-names { width: 100%; min-height: 96px; font-family: var(--mono); font-size: 0.82rem; }
.advice { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.advice li { position: relative; padding: 7px 12px 7px 36px; border-radius: 9px; background: var(--bg-soft); font-size: 0.85rem; }
.advice li::before { position: absolute; left: 10px; top: 7px; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.7rem; font-weight: 800; color: var(--on-primary); }
.advice li.ok::before { content: "✓"; background: var(--success-text); }
.advice li.info::before { content: "i"; background: var(--info-text); }
.advice li.warning::before { content: "!"; background: var(--warning-text); }
.advice li.error::before { content: "✕"; background: var(--danger); }
.dz-caps { display: flex; flex-wrap: wrap; gap: 6px; }
.dz-cap { font-size: 0.78rem; padding: 4px 11px; border-radius: 999px; border: 1px solid var(--border); background: var(--card-bg); color: var(--text-muted); }
.dz-cap.ok { border-color: rgba(47,158,68,0.45); background: rgba(47,158,68,0.08); color: var(--text); }
.dz-cap.ok::before { content: "✓ "; color: var(--success-text); font-weight: 800; }
.dz-cap.off { text-decoration: line-through; opacity: .7; }
.tpl-preview table { font-family: var(--mono); font-size: 0.76rem; }
.tpl-preview td, .tpl-preview th { white-space: nowrap; padding: 4px 9px; }
.tpl-preview tr.tpl-sig td { background: var(--accent-soft); color: var(--accent-text); font-size: 0.7rem; white-space: normal; word-break: break-all; line-height: 1.45; }
.tpl-preview th { background: var(--primary-soft); color: var(--primary-text); }
.tpl-preview td.tpl-empty { color: var(--border-strong); text-align: center; }
.tpl-preview td.tpl-rowno, .tpl-preview th.tpl-rowno { color: var(--text-muted); background: var(--bg-soft); font-size: 0.68rem; text-align: right; }
.dz-downloads { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 10px; margin-top: 16px; }
.dl-card { display: flex; gap: 11px; align-items: flex-start; text-align: left; font-family: inherit; color: var(--text); background: var(--card-bg); border: 1px solid var(--border-strong); border-radius: 11px; padding: 11px 13px; cursor: pointer; transition: border-color .15s, transform .1s; }
.dl-card:hover:not(:disabled) { border-color: var(--primary); transform: translateY(-1px); }
.dl-card:disabled { opacity: .45; cursor: not-allowed; }
.dl-card .dl-ext { flex-shrink: 0; min-width: 46px; text-align: center; font-size: 0.7rem; font-weight: 800; letter-spacing: .04em; padding: 6px 4px; border-radius: 7px; background: var(--primary-soft); color: var(--primary-text); }
.dl-card.primary { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary-soft); }
.dl-card.primary .dl-ext { background: var(--primary); color: var(--on-primary); }
.dl-card .dl-t { font-weight: 700; font-size: 0.86rem; }
.dl-card .dl-s { font-size: 0.75rem; color: var(--text-muted); }
.chk { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; font-size: 0.7rem; font-weight: 800; color: var(--on-primary); }
/* the -text tones: dark enough for white in light, light enough for near-black in dark */
.chk.ok { background: var(--success-text); } .chk.warning { background: var(--warning-text); } .chk.error { background: var(--danger-text); }

/* ---------- OTU images: the manager dialog ---------- */
.otu-modal { position: fixed; inset: 0; z-index: 200; background: rgba(12, 22, 26, 0.55); display: none; align-items: center; justify-content: center; padding: 18px; backdrop-filter: blur(2px); }
.otu-dialog { background: var(--card-bg); border-radius: 16px; box-shadow: 0 20px 60px rgba(0,0,0,.3); width: min(1180px, 100%); max-height: calc(100vh - 36px); display: flex; flex-direction: column; overflow: hidden; border-top: 3px solid var(--accent); }
.otu-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 16px 20px 8px; flex-wrap: wrap; }
.otu-head h2 { margin: 0; font-size: 1.2rem; }
.otu-rule { margin: 0 20px 10px; padding: 9px 13px; border-radius: 9px; background: var(--accent-soft); border-left: 3px solid var(--accent); font-size: 0.82rem; line-height: 1.45; }
.otu-body { display: grid; grid-template-columns: 250px 1fr; gap: 0; min-height: 0; flex: 1; border-top: 1px solid var(--border); }
@media (max-width: 760px) { .otu-body { grid-template-columns: 1fr; } .otu-list { max-height: 180px; } }
.otu-list { overflow-y: auto; padding: 10px; border-right: 1px solid var(--border); background: var(--bg-soft); }
.otu-item { display: grid; grid-template-columns: 36px 1fr auto; gap: 8px; align-items: center; width: 100%; text-align: left; font-family: inherit; color: var(--text); background: transparent; border: 1px solid transparent; border-radius: 9px; padding: 5px 7px; cursor: pointer; margin-bottom: 3px; }
.otu-item:hover { background: var(--card-bg); }
.otu-item.active { background: var(--card-bg); border-color: var(--primary); }
.otu-thumb { width: 36px; height: 36px; border-radius: 50%; overflow: hidden; background: var(--card-bg); border: 1px dashed var(--border-strong); display: flex; align-items: center; justify-content: center; color: var(--text-muted); }
.otu-thumb img { width: 100%; height: 100%; object-fit: cover; }
.otu-name { font-size: 0.82rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.otu-state { font-size: 0.66rem; font-weight: 700; padding: 1px 6px; border-radius: 999px; }
.otu-state.ok { background: var(--success-text); color: var(--on-primary); }
.otu-state.pending { background: var(--warning-text); color: var(--on-primary); }
.otu-editor { overflow-y: auto; padding: 14px 20px 20px; }
.otu-edit-grid { display: grid; grid-template-columns: minmax(220px, 340px) 1fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .otu-edit-grid { grid-template-columns: 1fr; } }
.otu-drop { border: 2px dashed var(--border-strong); border-radius: 14px; background: repeating-conic-gradient(var(--bg-soft) 0% 25%, var(--card-bg) 0% 50%) 50% / 18px 18px; aspect-ratio: 1; display: flex; align-items: center; justify-content: center; cursor: pointer; position: relative; }
.otu-drop.has { cursor: default; border-style: solid; border-color: var(--border); }
.otu-drop.drag { border-color: var(--primary); background-color: var(--primary-soft); }
.otu-drop.busy { opacity: .5; }
.otu-empty { text-align: center; font-size: 0.86rem; color: var(--text-muted); padding: 20px; }
.otu-preview { position: relative; width: 100%; height: 100%; }
.otu-preview img { width: 100%; height: 100%; display: block; border-radius: 12px; }
.otu-frame { position: absolute; inset: 0; border-radius: 50%; box-shadow: 0 0 0 2000px rgba(255,255,255,.28); pointer-events: none; outline: 1.5px dashed rgba(var(--primary-rgb), .7); outline-offset: -1px; }
.otu-controls h4 { font-size: 0.7rem; }
.otu-slider { display: grid; grid-template-columns: 118px 1fr 48px; gap: 8px; align-items: center; font-size: 0.8rem; margin: 3px 0; color: var(--text-muted); }
.otu-slider input[type=range] { width: 100%; accent-color: var(--primary); }
.otu-meta { margin-top: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.otu-meta .otu-confirm, .otu-meta .btn-row { grid-column: 1 / -1; }
.otu-confirm { display: flex; gap: 10px; align-items: flex-start; padding: 10px 12px; border-radius: 10px; border: 1.5px solid var(--warning); background: rgba(217,138,28,.08); font-size: 0.85rem; cursor: pointer; }
.otu-confirm input { margin-top: 3px; transform: scale(1.2); accent-color: var(--success); }

/* ---------- Block 8: divergence times ---------- */
.dating-card { border-top: 3px solid var(--primary); }
.dt-tiplist { max-height: 170px; overflow-y: auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 2px 10px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--bg-soft); }
.dt-tip { font-size: 0.8rem; display: flex; gap: 6px; align-items: center; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer; }
.dt-method { border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; background: var(--card-bg); }
.dt-method h4 { margin-top: 0; }
.dt-prior { font-size: 0.78rem; white-space: nowrap; }
#dtCalibTable select, #dtCalibTable input { font-size: 0.8rem; }

/* ---------- Block 2: built-in data sheet ---------- */
.sheet-banner { background: linear-gradient(100deg, var(--primary-soft), rgba(47,143,184,0.10)); margin-top: 10px; }
.sheet-card { border-top: 3px solid var(--primary); }
.sheet-toolbar { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; margin: 10px 0 8px; }
.sh-group { display: flex; gap: 5px; align-items: center; flex-wrap: wrap; }
.sh-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--text-muted); margin-right: 2px; }
.sheet-grid { position: relative; }
.sh-wrap { position: relative; height: 480px; overflow: auto; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--card-bg); outline: none; font-size: 0.82rem; }
.sh-canvas { position: relative; }
.sh-cell { position: absolute; height: 26px; line-height: 25px; padding: 0 6px; box-sizing: border-box; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: cell; user-select: none; color: var(--text); }
.sh-cell.num { text-align: right; font-variant-numeric: tabular-nums; }
.sh-cell.head { background: var(--bg-soft); font-weight: 700; }
.sh-cell.sel { background: var(--primary-soft); }
.sh-cell.head.sel { background: rgba(var(--primary-rgb), 0.2); }
.sh-cell.active { box-shadow: inset 0 0 0 2px var(--primary); background: var(--card-bg); }
.sh-cell.bad { background: rgba(201,58,44,0.14); }
.sh-cell.bad.active { box-shadow: inset 0 0 0 2px var(--danger); }
.sh-colhead { position: absolute; height: 26px; z-index: 3; pointer-events: none; }
.sh-ch { position: absolute; top: 0; height: 26px; line-height: 26px; text-align: center; font-size: 0.72rem; font-weight: 700; color: var(--text-muted); background: var(--bg-soft); border-right: 1px solid var(--border); border-bottom: 1px solid var(--border-strong); box-sizing: border-box; pointer-events: auto; cursor: s-resize; }
.sh-ch.on { background: var(--primary-soft); color: var(--primary-text); }
.sh-rowhead { position: absolute; width: 52px; z-index: 3; pointer-events: none; overflow: hidden; }
.sh-rh { position: absolute; left: 0; width: 52px; height: 26px; line-height: 26px; text-align: right; padding-right: 7px; box-sizing: border-box; font-size: 0.72rem; color: var(--text-muted); background: var(--bg-soft); border-right: 1px solid var(--border-strong); border-bottom: 1px solid var(--border); pointer-events: auto; cursor: e-resize; font-variant-numeric: tabular-nums; }
.sh-rh.on { background: var(--primary-soft); color: var(--primary-text); font-weight: 700; }
.sh-rh.bad { color: var(--danger-text); font-weight: 700; }
.sh-corner { position: absolute; width: 52px; height: 26px; z-index: 4; background: var(--bg-soft); border-right: 1px solid var(--border-strong); border-bottom: 1px solid var(--border-strong); cursor: pointer; }
.sh-editor { position: absolute; z-index: 5; display: none; height: 26px; box-sizing: border-box; padding: 0 6px !important; border: 2px solid var(--primary) !important; border-radius: 0 !important; font-size: 0.82rem !important; background: var(--card-bg); box-shadow: 0 4px 14px rgba(0,0,0,.15); }
.sh-keytrap { position: absolute; left: -9999px; top: 0; width: 1px; height: 1px; opacity: 0; }
.sheet-status { display: flex; justify-content: space-between; gap: 10px; font-size: 0.78rem; color: var(--text-muted); padding: 6px 4px 0; }
.sh-sep { color: var(--border-strong); margin: 0 6px; }
.sh-saved { color: var(--success-text); }
.sheet-paste { margin-top: 10px; border-top: none; }
.sheet-actions { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border); }
.sh-start, .sh-save { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.fig-warn { color: var(--warning-text) !important; font-weight: 600; }