/* ClusteringPro — Cluster analysis for every kind of data
   The app's own stylesheet. Neutrals, scales, focus ring, top bar, block bar,
   buttons, messages and print come from labg-base.css (common to the LABG
   Suite); only ClusteringPro's identity and its own components live here. */

/* identity: indigo and orange accent, plus the app's cluster colours.
   In dark, --primary-dark is the LIGHTER tone (text and button hover). */
:root {
  --primary-rgb: 79, 70, 165; --primary: #4f46a5; --primary-dark: #3f3889;
  --accent-rgb: 224, 128, 60; --accent: #e0803c;
  --sky: #1f9bb3;
  --c1: #4f46a5; --c2: #e0803c; --c3: #1fa39a; --c4: #d64a6a; --c5: #7bb041; --c6: #8a5cd6;
  /* text tones of the illustration colours: darker only in the light theme so labels reach 4.5:1;
     figures and fills keep the original colour */
  --sky-text: color-mix(in srgb, var(--sky) 60%, #000); --c4-text: color-mix(in srgb, var(--c4) 68%, #000);
  --c5-text: #4a7322;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --primary-rgb: 143, 134, 232; --primary: #8f86e8; --primary-dark: #b1aaf1;
    --accent-rgb: 238, 160, 98; --accent: #eea062;
    --sky: #4fc0d6;
    --c1: #8f86e8; --c2: #eea062; --c3: #3fc4ba; --c4: #ee7391; --c5: #9ccb5e; --c6: #ad8cf0;
    --sky-text: var(--sky); --c4-text: var(--c4); --c5-text: var(--c5);
  }
}
:root[data-theme="dark"] {
  --primary-rgb: 143, 134, 232; --primary: #8f86e8; --primary-dark: #b1aaf1;
  --accent-rgb: 238, 160, 98; --accent: #eea062;
  --sky: #4fc0d6;
  --c1: #8f86e8; --c2: #eea062; --c3: #3fc4ba; --c4: #ee7391; --c5: #9ccb5e; --c6: #ad8cf0;
  --sky-text: var(--sky); --c4-text: var(--c4); --c5-text: var(--c5);
}

main { max-width: 1180px; margin: 0 auto; padding: 0 20px 80px; }

/* ---------- Top bar (structure from labg-base.css) ---------- */
.topbar-inner { max-width: 1180px; }

/* ---------- 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(31,163,154,0.16), 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; 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(31,163,154,0.14); color: var(--sky-text); }
.m-fam.val  { background: rgba(214,74,106,0.13); 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); }
.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); }
/* wide tables inside cards scroll sideways within their box instead of widening the page on a phone */
.x-scroll { max-width: 100%; overflow-x: auto; }
.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; }
.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; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; cursor: pointer; margin-bottom: 6px; }
/* a report section whose block has not been run: dimmed with the muted text tone (not opacity) so it still reads at 4.5:1 */
.checkbox-label.is-off { color: var(--text-muted); cursor: not-allowed; }
.checkbox-label.is-off .rp-state { font-style: italic; }
.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; }
.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(31,163,154,0.14); border-color: rgba(31,163,154,0.35); 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: var(--c5-text); }
.pill.count { background: rgba(214,74,106,0.12); border-color: rgba(214,74,106,0.35); 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; }
/* the heading takes the cluster colour (--cc, set inline) as a text tone: darkened in light, lightened in dark */
.cluster-card h4 { color: color-mix(in srgb, var(--cc, var(--text)) 62%, #000); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .cluster-card h4 { color: color-mix(in srgb, var(--cc, var(--text)) 55%, #fff); } }
:root[data-theme="dark"] .cluster-card h4 { color: color-mix(in srgb, var(--cc, var(--text)) 55%, #fff); }
.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; }