/* ==========================================================================
   AVA · site styles
   Colours are tokens on :root; dark mode via prefers-color-scheme, overridable
   with [data-theme] (the header toggle). Event-class colours are injected by
   assets/js/palette.js as --cls-<id> so they are defined once, in JS.
   ========================================================================== */

:root {
  color-scheme: light;
  --bg: #f6f6f3;
  --surface: #ffffff;
  --surface-2: #f2f1ed;
  --surface-3: #e8e7e2;
  --chart-surface: #fcfcfb;
  --text: #131313;
  --text-2: #4d4c48;
  --muted: #676661;
  --axis-ink: #7b7a74;
  --grid: #e6e5df;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.20);
  --accent: #2f55d4;
  --accent-hover: #2446b8;
  --accent-ink: #ffffff;
  --accent-soft: #e9eefc;
  --risk: #2f55d4;
  --risk-wash: rgba(47, 85, 212, 0.10);
  --critical: #d03b3b;
  --critical-soft: rgba(208, 59, 59, 0.11);
  --warning-ink: #8a5a00;
  --warning-bg: #fff5da;
  --warning-border: #f1cf72;
  --good-ink: #006300;
  --good-bg: #e7f5e7;
  --sig-red: #d03b3b;
  --sig-yellow: #fab219;
  --sig-green: #0ca30c;
  --sig-unknown: #bab8b0;
  --pl-learned: #6247d1;
  --pl-learned-bg: #f0edfc;
  --pl-rule: #0d7f62;
  --pl-rule-bg: #e5f4ee;
  --pl-geo: #2a66c8;
  --pl-geo-bg: #e8f0fc;
  --pl-io: #6b6a65;
  --pl-io-bg: #f2f1ed;
  --shadow: 0 1px 2px rgba(20, 20, 10, 0.04), 0 6px 20px rgba(20, 20, 10, 0.05);
  --shadow-lg: 0 10px 40px rgba(20, 20, 10, 0.18);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --maxw: 1200px;
  --gutter: 24px;
  --header-h: 60px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', 'Cascadia Mono', Consolas, 'Liberation Mono', monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0e0f10;
    --surface: #17181a;
    --surface-2: #1f2023;
    --surface-3: #2a2b2e;
    --chart-surface: #1a1a19;
    --text: #f3f3f1;
    --text-2: #c9c8be;
    --muted: #a3a199;
    --axis-ink: #95938b;
    --grid: #2c2c2a;
    --axis: #45443f;
    --border: rgba(255, 255, 255, 0.10);
    --border-strong: rgba(255, 255, 255, 0.20);
    --accent: #7f9cff;
    --accent-hover: #9cb3ff;
    --accent-ink: #0b1026;
    --accent-soft: rgba(127, 156, 255, 0.14);
    --risk: #7f9cff;
    --risk-wash: rgba(127, 156, 255, 0.12);
    --critical: #e66767;
    --critical-soft: rgba(230, 103, 103, 0.16);
    --warning-ink: #f5c65a;
    --warning-bg: rgba(250, 178, 25, 0.10);
    --warning-border: rgba(250, 178, 25, 0.40);
    --good-ink: #4fd14f;
    --good-bg: rgba(12, 163, 12, 0.14);
    --sig-unknown: #6d6c66;
    --pl-learned: #a795ff;
    --pl-learned-bg: rgba(167, 149, 255, 0.12);
    --pl-rule: #3fc79f;
    --pl-rule-bg: rgba(63, 199, 159, 0.11);
    --pl-geo: #6fa3ff;
    --pl-geo-bg: rgba(111, 163, 255, 0.12);
    --pl-io: #a3a199;
    --pl-io-bg: rgba(255, 255, 255, 0.05);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 20px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.6);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e0f10;
  --surface: #17181a;
  --surface-2: #1f2023;
  --surface-3: #2a2b2e;
  --chart-surface: #1a1a19;
  --text: #f3f3f1;
  --text-2: #c9c8be;
  --muted: #a3a199;
  --axis-ink: #95938b;
  --grid: #2c2c2a;
  --axis: #45443f;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --accent: #7f9cff;
  --accent-hover: #9cb3ff;
  --accent-ink: #0b1026;
  --accent-soft: rgba(127, 156, 255, 0.14);
  --risk: #7f9cff;
  --risk-wash: rgba(127, 156, 255, 0.12);
  --critical: #e66767;
  --critical-soft: rgba(230, 103, 103, 0.16);
  --warning-ink: #f5c65a;
  --warning-bg: rgba(250, 178, 25, 0.10);
  --warning-border: rgba(250, 178, 25, 0.40);
  --good-ink: #4fd14f;
  --good-bg: rgba(12, 163, 12, 0.14);
  --sig-unknown: #6d6c66;
  --pl-learned: #a795ff;
  --pl-learned-bg: rgba(167, 149, 255, 0.12);
  --pl-rule: #3fc79f;
  --pl-rule-bg: rgba(63, 199, 159, 0.11);
  --pl-geo: #6fa3ff;
  --pl-geo-bg: rgba(111, 163, 255, 0.12);
  --pl-io: #a3a199;
  --pl-io-bg: rgba(255, 255, 255, 0.05);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 6px 20px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.6);
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, video, svg, canvas { max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 0.5em; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 1.3rem + 3vw, 3.4rem); letter-spacing: -0.025em; font-weight: 700; }
h2 { font-size: clamp(1.55rem, 1.2rem + 1.4vw, 2.2rem); letter-spacing: -0.02em; }
h3 { font-size: 1.12rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }
code { font-family: var(--mono); font-size: 0.88em; background: var(--surface-2); border: 1px solid var(--border); padding: 0.05em 0.35em; border-radius: 5px; overflow-wrap: anywhere; }
strong { font-weight: 620; }
ul, ol { padding-left: 1.25em; margin: 0 0 1em; }
li { margin: 0.2em 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
.muted { color: var(--muted); }
.small { font-size: 0.86rem; }
.note { font-size: 0.9rem; color: var(--text-2); margin-top: 0.8em; }
.num { font-variant-numeric: tabular-nums; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 12px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.loading { color: var(--muted); padding: 24px 0; }
.noscript { position: fixed; bottom: 0; left: 0; right: 0; padding: 12px; background: var(--warning-bg); color: var(--warning-ink); text-align: center; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
@supports not (background: color-mix(in srgb, red 50%, transparent)) { .site-header { background: var(--bg); } }
.header-inner { display: flex; align-items: center; gap: 16px; height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; letter-spacing: -0.01em; flex-shrink: 0; }
.brand:hover { color: var(--text); }
.brand-mark { width: 28px; height: 28px; }
.bm-bg { fill: var(--text); }
.bm-r { fill: #e34948; } .bm-y { fill: #eda100; } .bm-g { fill: #1baf7a; }
.site-nav { margin-left: auto; }
.site-nav ul { list-style: none; display: flex; gap: 2px; margin: 0; padding: 0; }
.site-nav a { display: block; padding: 7px 11px; border-radius: 8px; color: var(--text-2); text-decoration: none; font-size: 0.93rem; font-weight: 500; }
.site-nav a:hover { background: var(--surface-2); color: var(--text); }
.site-nav a.is-current { color: var(--text); background: var(--surface-2); }
.site-nav a.nav-cta { color: var(--accent); }
.site-nav a.nav-cta.is-current, .site-nav a.nav-cta:hover { background: var(--accent-soft); color: var(--accent); }
.header-actions { display: flex; gap: 6px; align-items: center; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; padding: 0; }
.icon-btn:hover { background: var(--surface-2); }
.icon-btn svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.i-moon { display: none; }
:root[data-theme="dark"] .i-sun { display: none; }
:root[data-theme="dark"] .i-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .i-sun { display: none; }
  :root:not([data-theme="light"]) .i-moon { display: block; }
}
.menu-btn { display: none; }

@media (max-width: 900px) {
  .menu-btn { display: inline-grid; }
  .header-actions { margin-left: auto; }
  .site-nav { position: absolute; top: var(--header-h); left: 0; right: 0; margin: 0; background: var(--surface); border-bottom: 1px solid var(--border); box-shadow: var(--shadow); display: none; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; padding: 8px var(--gutter) 14px; }
  .site-nav a { padding: 11px 12px; font-size: 1rem; }
}

/* ---------- hero ---------- */
.hero { padding: 64px 0 48px; background:
  radial-gradient(1200px 400px at 85% -10%, var(--accent-soft), transparent 70%), var(--bg); }
.hero-inner { max-width: var(--maxw); }
.eyebrow { font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 14px; }
.hero h1 { max-width: 20ch; }
.lead { font-size: clamp(1.05rem, 1rem + 0.3vw, 1.2rem); color: var(--text-2); max-width: 62ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 36px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border-radius: 11px; border: 1px solid transparent; font: inherit; font-weight: 600; font-size: 0.95rem; text-decoration: none; cursor: pointer; line-height: 1.2; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-sm { padding: 7px 12px; font-size: 0.86rem; border-radius: 9px; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; }
.stat-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat dt { font-size: 0.85rem; color: var(--muted); }
.stat dd { margin: 4px 0 0; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.3rem); font-weight: 650; letter-spacing: -0.02em; line-height: 1.1; }
.stat dd small { font-size: 0.5em; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.stat dd.stat-sub { font-size: 0.82rem; font-weight: 400; color: var(--muted); letter-spacing: 0; line-height: 1.4; margin-top: 6px; }
.explorer { margin-top: 36px; }
@media (max-width: 720px) { .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); } .hero { padding: 40px 0 32px; } }

/* ---------- sections, cards, grids ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--surface-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-alt .card, .section-alt .stat { background: var(--surface); }
.section-head { margin-bottom: 28px; max-width: 760px; }
.kicker { font-size: 0.82rem; font-weight: 650; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.section-lead { color: var(--text-2); font-size: 1.04rem; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); min-width: 0; margin: 0 0 20px; }
.card > :last-child { margin-bottom: 0; }
.card h3 { margin-bottom: 0.55em; }
.card-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; margin-bottom: 14px; }
.card-head h3 { margin: 0; }
.card-head p { margin: 0; }
.grid { display: grid; gap: 20px; margin-bottom: 20px; }
.grid > .card { margin: 0; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 960px) { .grid-3 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 820px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 600px) {
  :root { --gutter: 16px; }
  .section { padding: 52px 0; }
  .card { padding: 16px; border-radius: 14px; }
}

/* ---------- approach ---------- */
.problem-cards .card p { color: var(--text-2); margin: 0; }
.figure-card { margin: 0 0 20px; }
.figure-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 20px; margin-bottom: 12px; }
.figure-head h3 { margin: 0; }
.legend-inline { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 0; padding: 0; font-size: 0.84rem; color: var(--text-2); }
.legend-inline li { display: inline-flex; align-items: center; gap: 6px; margin: 0; }
.key { width: 14px; height: 14px; border-radius: 4px; border: 1.5px solid; display: inline-block; flex-shrink: 0; }
.key-learned { background: var(--pl-learned-bg); border-color: var(--pl-learned); }
.key-rule { background: var(--pl-rule-bg); border-color: var(--pl-rule); }
.key-geo { background: var(--pl-geo-bg); border-color: var(--pl-geo); }
.key-io { background: var(--pl-io-bg); border-color: var(--pl-io); }
.pipeline-diagram { width: 100%; }
.pipeline-diagram svg { display: block; width: 100%; height: auto; }
.pl-box { stroke-width: 1.5; }
.pl-box.learned { fill: var(--pl-learned-bg); stroke: var(--pl-learned); }
.pl-box.rule { fill: var(--pl-rule-bg); stroke: var(--pl-rule); }
.pl-box.geo { fill: var(--pl-geo-bg); stroke: var(--pl-geo); }
.pl-box.io { fill: var(--pl-io-bg); stroke: var(--pl-io); }
.pl-num { font: 700 11px var(--font); fill: var(--muted); letter-spacing: 0.04em; }
.pl-title { font: 650 14px var(--font); fill: var(--text); }
.pl-text { font: 400 12px var(--font); fill: var(--text-2); }
.pl-lane { font: 700 11px var(--font); fill: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }
.pl-edge { fill: none; stroke: var(--muted); stroke-width: 1.5; }
.pl-arrowhead { fill: var(--muted); }
.pl-out { fill: var(--text); }
.pl-out-text { font: 600 12.5px var(--mono); fill: var(--bg); }
.pl-divider { stroke: var(--border-strong); stroke-width: 1; }

.steps-grid { margin-bottom: 20px; }
.steps-title { margin: 26px 0 12px; }
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 1100px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .steps { grid-template-columns: minmax(0, 1fr); } }
.steps-b > li::before { content: 'B' counter(step); width: 30px; border-radius: 13px; left: 12px; }
.steps-b > li { padding-left: 54px; }
.steps > li { counter-increment: step; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 16px 16px 14px 52px; position: relative; margin: 0; }
.steps > li::before { content: counter(step); position: absolute; left: 14px; top: 15px; width: 26px; height: 26px; border-radius: 50%; background: var(--text); color: var(--bg); font-weight: 700; font-size: 0.85rem; display: grid; place-items: center; }
.steps h4 { margin-bottom: 0.3em; }
.steps p { color: var(--text-2); font-size: 0.93rem; margin: 0; }
.split-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 480px) { .split-list { grid-template-columns: minmax(0, 1fr); } }
.split-list ul { padding-left: 1.1em; margin: 0; color: var(--text-2); font-size: 0.93rem; }
.tag { display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 3px 9px; border-radius: 999px; margin-bottom: 8px; }
.tag-learned { background: var(--pl-learned-bg); color: var(--pl-learned); }
.tag-rule { background: var(--pl-rule-bg); color: var(--pl-rule); }

.class-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
@media (max-width: 400px) { .class-grid { grid-template-columns: minmax(0, 1fr); } }
.class-card { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; background: var(--chart-surface); min-width: 0; }
.class-card.is-off { opacity: 0.72; }
.class-card header { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.class-card h4 { margin: 0; font-size: 0.95rem; }
.class-card p { margin: 0; font-size: 0.87rem; color: var(--text-2); }
.class-card .method { margin-left: auto; font-size: 0.72rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); white-space: nowrap; }
.class-card code { font-size: 0.78rem; }
.swatch { width: 12px; height: 12px; border-radius: 3px; flex-shrink: 0; display: inline-block; }
.swatch-line { width: 16px; height: 3px; border-radius: 2px; flex-shrink: 0; display: inline-block; }

/* ---------- tables ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.data-table th, .data-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.data-table thead th { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 650; background: var(--surface); white-space: nowrap; }
.data-table td.r, .data-table th.r { text-align: right; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table caption { text-align: left; font-size: 0.85rem; color: var(--muted); padding-bottom: 6px; }

details.table-view { margin-top: 10px; font-size: 0.88rem; }
details.table-view summary { cursor: pointer; color: var(--muted); font-size: 0.84rem; list-style: none; display: inline-flex; align-items: center; gap: 6px; padding: 2px 0; }
details.table-view summary::-webkit-details-marker { display: none; }
details.table-view summary::before { content: '▸'; font-size: 0.8em; transition: transform .15s; }
details.table-view[open] summary::before { transform: rotate(90deg); }
details.table-view .table-scroll { max-height: 280px; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-xs); margin-top: 6px; }
details.table-view thead th { position: sticky; top: 0; }

/* ---------- charts ---------- */
.chart-box { position: relative; width: 100%; height: 260px; }
.chart-box.h-sm { height: 200px; }
.chart-box.h-lg { height: 320px; }
.chart-box canvas { display: block; }
.chart-fallback { font-size: 0.86rem; color: var(--muted); padding: 10px 12px; border: 1px dashed var(--border-strong); border-radius: var(--radius-xs); }
.chart-title { font-size: 0.92rem; font-weight: 600; margin: 0 0 6px; }
.chart-sub { font-size: 0.82rem; color: var(--muted); margin: -4px 0 8px; }

/* ---------- EDA ---------- */
.eda-tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
@media (max-width: 820px) { .eda-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.finding-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 20px; }
.finding-grid > .card { margin: 0; }
.finding-grid > .span-2 { grid-column: 1 / -1; }
@media (max-width: 900px) { .finding-grid { grid-template-columns: minmax(0, 1fr); } }
.finding .finding-num { font-size: 0.76rem; font-weight: 700; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.finding h3 { margin-bottom: 12px; }
.finding .so { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; margin-top: 14px; }
@media (max-width: 560px) { .finding .so { grid-template-columns: minmax(0, 1fr); } }
.finding .so > div { border-radius: var(--radius-xs); padding: 10px 12px; font-size: 0.9rem; background: var(--surface-2); }
.finding .so > div.did { background: var(--accent-soft); }
.finding .so b { display: block; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin-bottom: 2px; }
.finding .so p { margin: 0; color: var(--text-2); }
.two-charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 640px) { .two-charts { grid-template-columns: minmax(0, 1fr); } }
.img-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.img-grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 720px) { .img-grid.cols-3 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .img-grid { grid-template-columns: minmax(0, 1fr); } }
.img-fig { margin: 0; min-width: 0; }
.img-fig button { display: block; width: 100%; padding: 0; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; background: var(--surface-3); cursor: zoom-in; aspect-ratio: 16 / 9; }
.img-fig img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .25s; }
.img-fig button:hover img { transform: scale(1.02); }
.img-fig figcaption { font-size: 0.82rem; color: var(--muted); margin-top: 6px; line-height: 1.45; }
.signal-svg text { font: 500 11.5px var(--font); fill: var(--text-2); }
.signal-svg .sig-axis text { fill: var(--axis-ink); font-size: 11px; }
.signal-svg .sig-grid { stroke: var(--grid); stroke-width: 1; }
.sig-red { fill: var(--sig-red); } .sig-yellow { fill: var(--sig-yellow); } .sig-green { fill: var(--sig-green); } .sig-unknown { fill: var(--sig-unknown); }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 14px; padding: 0; margin: 8px 0 0; font-size: 0.83rem; color: var(--text-2); }
.legend li { display: inline-flex; align-items: center; gap: 6px; margin: 0; }
.kv { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 0.88rem; color: var(--text-2); margin: 10px 0 0; padding: 0; list-style: none; }
.kv li { margin: 0; }
.kv b { color: var(--text); font-weight: 650; }

.explorer-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 0 0 16px; }
.explorer-bar h3 { margin: 0; }
.explorer-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.explorer-grid > .card { margin: 0; }
.explorer-grid > .span-2 { grid-column: 1 / -1; }
@media (max-width: 900px) { .explorer-grid { grid-template-columns: minmax(0, 1fr); } }

/* segmented control (video pickers) */
.seg { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 4px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; }
.seg button { border: 0; background: transparent; color: var(--text-2); font: inherit; font-size: 0.88rem; font-weight: 550; padding: 6px 12px; border-radius: 9px; cursor: pointer; }
.seg button:hover { color: var(--text); background: var(--surface-3); }
.seg button[aria-pressed="true"], .seg button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 2px rgba(0,0,0,.08), 0 0 0 1px var(--border); }

/* ---------- results: video tabs ---------- */
.vtabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-bottom: 18px; }
@media (max-width: 760px) { .vtabs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.vtab { display: flex; gap: 10px; align-items: center; text-align: left; padding: 8px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; font: inherit; min-width: 0; }
.vtab:hover { border-color: var(--border-strong); }
.vtab[aria-selected="true"] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; background: var(--accent-soft); }
.vtab img { width: 64px; height: 36px; object-fit: cover; border-radius: 6px; flex-shrink: 0; background: var(--surface-3); }
.vtab span { display: block; min-width: 0; }
.vtab .vt-name { font-weight: 650; font-size: 0.95rem; }
.vtab .vt-meta { font-size: 0.78rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 420px) { .vtab img { display: none; } }

/* ---------- event viewer ---------- */
.ev { position: relative; }
.ev-top { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); gap: 18px; margin-bottom: 16px; }
@media (max-width: 900px) { .ev-top { grid-template-columns: minmax(0, 1fr); } }
.ev-media { position: relative; border-radius: var(--radius-sm); overflow: hidden; background: #000; aspect-ratio: 16 / 9; }
.ev-media video { display: block; width: 100%; height: 100%; background: #000; }
.ev-novideo { position: absolute; inset: 0; display: grid; place-items: end start; background: #000 center / cover no-repeat; }
.ev-novideo[hidden] { display: none; }
.ev-novideo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.9; }
.ev-media video[hidden] { display: none; }
.ev-novideo .msg { position: relative; margin: 12px; padding: 10px 12px; max-width: 460px; background: rgba(10, 10, 12, 0.78); color: #f3f3f1; border-radius: 10px; font-size: 0.86rem; line-height: 1.45; }
.ev-novideo .msg b { display: block; font-size: 0.92rem; margin-bottom: 2px; }
.ev-side { display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.ev-clock { font-variant-numeric: tabular-nums; font-size: 1.5rem; font-weight: 650; letter-spacing: -0.01em; }
.ev-clock small { font-size: 0.6em; color: var(--muted); font-weight: 500; }
.ev-now { background: var(--surface-2); border-radius: var(--radius-sm); padding: 12px 14px; }
.ev-now h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin: 0 0 6px; }
.ev-now-list { display: flex; flex-wrap: wrap; gap: 6px; min-height: 28px; font-size: 0.86rem; color: var(--muted); }
.now-chip { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px 3px 8px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--text); font-size: 0.83rem; }
.ev-stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 0; }
.ev-stats div { background: var(--surface-2); border-radius: var(--radius-xs); padding: 8px 10px; min-width: 0; }
.ev-stats dt { font-size: 0.74rem; color: var(--muted); }
.ev-stats dd { margin: 0; font-weight: 650; font-size: 1.05rem; }
.ev-stats dd button { all: unset; cursor: pointer; color: var(--accent); text-decoration: underline; text-underline-offset: 2px; }
.ev-stats dd button:focus-visible { outline: 2px solid var(--accent); }
.ev-legend { display: flex; flex-wrap: wrap; gap: 6px; }
.ev-legend-head { display: flex; justify-content: space-between; align-items: baseline; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); font-weight: 650; }
.ev-legend-head button { all: unset; cursor: pointer; text-transform: none; letter-spacing: 0; font-weight: 500; font-size: 0.8rem; color: var(--accent); }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px 4px 8px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-size: 0.82rem; cursor: pointer; line-height: 1.3; }
.chip:hover { border-color: var(--border-strong); }
.chip[aria-pressed="false"] { color: var(--muted); background: transparent; }
.chip[aria-pressed="false"] .swatch { opacity: 0.25; }
.chip .count { color: var(--muted); font-variant-numeric: tabular-nums; }
.ev-charts { background: var(--chart-surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 12px 6px; }
.ev-chart-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 2px 12px; margin: 2px 2px 4px; }
.ev-chart-head h4 { font-size: 0.9rem; margin: 0; }
.ev-chart-head .hint { font-size: 0.78rem; color: var(--muted); }
.ev-timeline, .ev-risk { position: relative; width: 100%; touch-action: manipulation; }
.ev-timeline svg, .ev-risk svg { display: block; width: 100%; overflow: visible; cursor: pointer; user-select: none; -webkit-user-select: none; }
.ev-risk { margin-top: 8px; }
.tl-label { font: 500 12px var(--font); fill: var(--text-2); }
.tl-label.dim { fill: var(--muted); opacity: .6; }
.tl-band { fill: var(--surface-2); opacity: .55; }
.tl-grid { stroke: var(--grid); stroke-width: 1; }
.tl-tick { font: 400 11px var(--font); fill: var(--axis-ink); font-variant-numeric: tabular-nums; }
.tl-bar { rx: 3px; transition: opacity .15s; }
.tl-bar.dim { opacity: 0.12; }
.tl-bar:hover, .tl-bar.is-hover { stroke: var(--text); stroke-width: 1.5; }
.tl-bar.is-active { stroke: var(--text); stroke-width: 1.5; }
.tl-playhead { stroke: var(--text); stroke-width: 1.5; pointer-events: none; }
.tl-playhead-cap { fill: var(--text); pointer-events: none; }
.tl-hover { stroke: var(--axis-ink); stroke-width: 1; pointer-events: none; }
.rk-line { fill: none; stroke: var(--risk); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.rk-area { fill: var(--risk-wash); }
.rk-alarm { fill: var(--critical-soft); }
.rk-thr { stroke: var(--critical); stroke-width: 1.25; stroke-dasharray: 5 4; }
.rk-thr-label { font: 600 11px var(--font); fill: var(--critical); }
.rk-dot { fill: var(--risk); stroke: var(--chart-surface); stroke-width: 2; pointer-events: none; }
.rk-empty { font: 500 12.5px var(--font); fill: var(--muted); }
.ev-tip { position: absolute; z-index: 5; pointer-events: none; background: var(--surface); color: var(--text); border: 1px solid var(--border-strong); box-shadow: var(--shadow); border-radius: 8px; padding: 6px 9px; font-size: 0.8rem; line-height: 1.35; max-width: 240px; white-space: nowrap; }
.ev-tip[hidden] { display: none; }
.ev-tip .tv { font-weight: 650; font-variant-numeric: tabular-nums; }
.ev-tip .tk { display: flex; align-items: center; gap: 6px; color: var(--text-2); }
.ev-table-wrap { margin-top: 14px; }
.ev-table-wrap > summary { cursor: pointer; font-weight: 600; font-size: 0.95rem; padding: 6px 0; }
.ev-table-scroll { max-height: 340px; overflow: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-top: 6px; background: var(--surface); }
.ev-table thead th { position: sticky; top: 0; z-index: 1; }
.ev-table thead th button { all: unset; cursor: pointer; display: inline-flex; gap: 4px; align-items: center; }
.ev-table thead th button:focus-visible { outline: 2px solid var(--accent); }
.ev-table tbody tr { cursor: pointer; }
.ev-table tbody tr:hover td { background: var(--surface-2); }
.ev-table tbody tr.is-active td { background: var(--accent-soft); }
.ev-table .cls-cell { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.ev-table .seek-btn { all: unset; cursor: pointer; color: var(--accent); font-weight: 600; font-variant-numeric: tabular-nums; }
.ev-table .seek-btn:focus-visible { outline: 2px solid var(--accent); border-radius: 3px; }
.ev-empty { padding: 16px; color: var(--muted); font-size: 0.9rem; }

/* ---------- banners ---------- */
.banner { display: flex; gap: 10px; align-items: flex-start; border-radius: var(--radius-sm); padding: 12px 14px; font-size: 0.92rem; margin: 0 0 14px; border: 1px solid; }
.banner svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 1px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.banner p { margin: 0; }
.banner-warn { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning-ink); }
.banner-error { background: var(--critical-soft); border-color: color-mix(in srgb, var(--critical) 45%, transparent); color: var(--text); }
.banner-error svg { color: var(--critical); }
.banner-info { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--text); }
.banner-info svg { color: var(--accent); }
.banner-ok { background: var(--good-bg); border-color: color-mix(in srgb, var(--good-ink) 35%, transparent); color: var(--text); }
.banner-ok svg { color: var(--good-ink); }

/* ---------- results extras ---------- */
.metric-pending { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: var(--radius-sm); background: var(--surface-2); color: var(--text-2); font-size: 0.92rem; }
.metric-pending b { color: var(--text); }
.score-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.score-row .stat { box-shadow: none; padding: 12px 16px; min-width: 140px; }
.score-row .stat dd { font-size: 1.6rem; }
.fail-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.fail-card { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; background: var(--chart-surface); display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.fail-card h4 { margin: 0; font-size: 0.97rem; }
.fail-card p { margin: 0; font-size: 0.88rem; color: var(--text-2); flex: 1; }
.fail-card .btn { align-self: flex-start; }
.todo { display: inline-block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.05em; padding: 1px 6px; border-radius: 5px; background: var(--warning-bg); color: var(--warning-ink); border: 1px solid var(--warning-border); vertical-align: 1px; margin-right: 4px; }

/* ---------- demo ---------- */
.demo-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.demo-grid > .card { margin: 0; }
@media (max-width: 860px) { .demo-grid { grid-template-columns: minmax(0, 1fr); } }
.server-pill { display: inline-flex; align-items: center; gap: 7px; font-size: 0.82rem; color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 3px 11px 3px 9px; }
.server-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sig-unknown); }
.server-pill.online .dot { background: var(--sig-green); }
.server-pill.offline .dot { background: var(--critical); }
.dropzone { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 8px; padding: 30px 18px; border: 2px dashed var(--border-strong); border-radius: var(--radius); background: var(--chart-surface); cursor: pointer; transition: border-color .15s, background .15s; min-height: 190px; }
.dropzone:hover, .dropzone.is-drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone:focus-within { border-color: var(--accent); }
.dropzone svg { width: 38px; height: 38px; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.dropzone .dz-title { font-weight: 650; font-size: 1.02rem; }
.dropzone .dz-sub { font-size: 0.86rem; color: var(--muted); }
.dropzone input[type="file"] { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.dropzone.is-disabled { opacity: 0.55; pointer-events: none; }
.file-info { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin: 14px 0 0; font-size: 0.9rem; }
.file-info .fname { font-weight: 600; overflow-wrap: anywhere; }
.demo-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.limits { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 6px; font-size: 0.88rem; color: var(--text-2); }
.limits li { display: flex; gap: 8px; margin: 0; }
.limits li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--muted); margin-top: 0.55em; flex-shrink: 0; }
.status-steps { list-style: none; padding: 0; margin: 0 0 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.status-steps li { margin: 0; font-size: 0.78rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--border); }
.status-steps li.is-done { color: var(--good-ink); background: var(--good-bg); border-color: transparent; }
.status-steps li.is-current { color: var(--accent-ink); background: var(--accent); border-color: transparent; }
.status-steps li.is-error { color: #fff; background: var(--critical); border-color: transparent; }
.status-title { font-size: 1.05rem; font-weight: 650; margin: 0 0 4px; }
.status-sub { font-size: 0.9rem; color: var(--text-2); margin: 0 0 12px; min-height: 1.4em; }
.progress { height: 10px; border-radius: 999px; background: var(--surface-3); overflow: hidden; }
.progress > div { height: 100%; width: 0; background: var(--accent); border-radius: 999px; transition: width .35s ease; }
.progress.indeterminate > div { width: 35%; animation: indet 1.3s ease-in-out infinite; }
@keyframes indet { 0% { transform: translateX(-100%); } 100% { transform: translateX(300%); } }
.progress-meta { display: flex; justify-content: space-between; gap: 10px; font-size: 0.82rem; color: var(--muted); margin-top: 6px; font-variant-numeric: tabular-nums; }
.demo-result { margin-top: 22px; }
.demo-result-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 14px; }
.demo-result-head h3 { margin: 0; }
.idle-art { display: grid; gap: 10px; color: var(--text-2); font-size: 0.92rem; }
.idle-art ol { margin: 0; padding-left: 1.2em; }

/* ---------- report ---------- */
.report-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.report-cols > .card { margin: 0; }
@media (max-width: 960px) { .report-cols { grid-template-columns: minmax(0, 1fr); } }
.report-col h3 { display: flex; align-items: center; gap: 8px; }
.report-col h3 .dot { width: 10px; height: 10px; border-radius: 50%; }
.report-col ul { padding-left: 1.1em; margin: 0; color: var(--text-2); font-size: 0.93rem; }
.report-col li { margin: 0.5em 0; }
.dot-good { background: var(--sig-green); } .dot-bad { background: var(--critical); } .dot-next { background: var(--accent); }

/* ---------- team ---------- */
.team-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.team-grid > .card { margin: 0; display: flex; flex-direction: column; gap: 12px; }
@media (max-width: 960px) { .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .team-grid { grid-template-columns: minmax(0, 1fr); } }
.member-head { display: flex; gap: 14px; align-items: center; }
.avatar { width: 56px; height: 56px; border-radius: 50%; flex-shrink: 0; display: grid; place-items: center; font-weight: 700; font-size: 1.15rem; color: #fff; background: var(--text); overflow: hidden; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.member-head h3 { margin: 0; }
.member-head p { margin: 0; font-size: 0.88rem; color: var(--text-2); }
.member h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); margin: 4px 0 4px; }
.member ul { padding-left: 1.1em; margin: 0; font-size: 0.9rem; color: var(--text-2); }
.projects { list-style: none; padding: 0 !important; display: grid; gap: 8px; }
.projects li { background: var(--surface-2); border-radius: var(--radius-xs); padding: 8px 10px; margin: 0; }
.projects li a, .projects li span.pt { font-weight: 600; font-size: 0.9rem; }
.projects li p { margin: 2px 0 0; font-size: 0.85rem; color: var(--text-2); }
.social { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 4px; }
.social a, .social span { display: inline-flex; align-items: center; gap: 6px; font-size: 0.84rem; font-weight: 550; padding: 6px 10px; border-radius: 9px; border: 1px solid var(--border); color: var(--text); text-decoration: none; background: var(--surface); }
.social a:hover { background: var(--surface-2); }
.social span { color: var(--muted); border-style: dashed; }
.social svg { width: 16px; height: 16px; fill: currentColor; }

/* ---------- links ---------- */
.link-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 860px) { .link-grid { grid-template-columns: minmax(0, 1fr); } }
.link-card { display: flex; flex-direction: column; gap: 6px; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); text-decoration: none; color: var(--text); min-width: 0; }
a.link-card:hover { border-color: var(--accent); color: var(--text); }
.link-card .lc-kind { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 650; }
.link-card .lc-title { font-weight: 650; font-size: 1.05rem; overflow-wrap: anywhere; }
.link-card .lc-note { font-size: 0.87rem; color: var(--text-2); }
.link-card .lc-url { font-size: 0.8rem; color: var(--accent); font-family: var(--mono); overflow-wrap: anywhere; }
.link-card.is-pending { border-style: dashed; box-shadow: none; }
.extra-links { margin-top: 16px; font-size: 0.9rem; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0 40px; background: var(--bg); }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }
.footer-inner p { margin: 0; }

/* ---------- lightbox ---------- */
.lightbox { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1600px); max-height: 94vh; overflow: visible; }
.lightbox::backdrop { background: rgba(0, 0, 0, 0.82); }
.lightbox img { display: block; max-width: min(96vw, 1600px); max-height: 84vh; border-radius: 10px; margin: 0 auto; }
.lightbox-caption { color: #eee; font-size: 0.9rem; text-align: center; margin: 10px auto 0; max-width: 80ch; }
.lightbox form { position: absolute; top: -8px; right: -8px; margin: 0; z-index: 2; }
@media (max-width: 600px) { .lightbox form { top: -46px; right: 0; } }
.lightbox-close { background: #fff; color: #111; border: 0; }

/* ---------- errors ---------- */
.section-error { padding: 14px 16px; border-radius: var(--radius-sm); background: var(--critical-soft); color: var(--text); font-size: 0.92rem; }

@media print {
  .site-header, .hero-cta, #demo, .ev-media { display: none !important; }
  body { background: #fff; }
}