:root {
  --bg: oklch(0.985 0.004 160);
  --panel: oklch(1 0 0);
  --line: oklch(0.9 0.01 175);
  --text: oklch(0.21 0.02 190);
  --muted: oklch(0.5 0.02 185);
  --accent: oklch(0.78 0.11 78);
  --primary: oklch(0.41 0.078 178);
  --ink: oklch(0.2 0.03 205);
  --ink-foreground: oklch(0.97 0.01 175);
  --ink-muted: oklch(0.72 0.02 185);
  --good: #0f7a3a;
  --bad: #9b2c2c;
  font-family: Archivo, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
a { color: inherit; }
.landing-body { min-height: 100svh; display: flex; flex-direction: column; }
header.app-header {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 22px; background: var(--ink); color: var(--ink-foreground);
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.mark { width: 32px; height: 32px; }
.wordmark { font-size: 16px; font-weight: 700; letter-spacing: 0.14em; }
.brand p { margin: 2px 0 0; color: var(--ink-muted); font-size: 12px; }
.auth-slot { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.auth-btn {
  border-radius: 999px; border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08); color: var(--ink-foreground);
  padding: 7px 14px; font: inherit; font-size: 13px; font-weight: 600; text-decoration: none;
}
.auth-btn.outline { background: var(--ink-foreground); color: var(--ink); }
.landing { max-width: 1080px; margin: 0 auto; padding: 56px 22px 80px; }
.kicker { font-size: 12px; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent); }
.landing h1, .studio h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.05; letter-spacing: -0.03em; margin: 12px 0 8px;
}
.lede { font-family: "Instrument Serif", Georgia, serif; font-style: italic; font-size: 1.4rem; color: var(--muted); }
.landing-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.action {
  display: inline-flex; border-radius: 999px; padding: 12px 18px; font-weight: 650; font-size: 14px; text-decoration: none;
  border: 1px solid var(--ink); color: var(--ink);
}
.action.primary { background: var(--ink); color: var(--ink-foreground); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 48px; }
.grid article { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.grid h2 { margin: 0 0 8px; font-size: 16px; }
.grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.site-footer {
  margin-top: auto; padding: 22px; background: var(--ink); color: var(--ink-muted); font-size: 13px;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
}
.site-footer a { color: var(--ink-foreground); }
.auth-page { max-width: 420px; margin: 0 auto; padding: 64px 22px; }
.studio { max-width: 1240px; margin: 0 auto; padding: 28px 18px 80px; }
.studio .lede { font-size: 1.15rem; }
.tl-wrap { margin: 28px 0 10px; }
.tl-label { font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--primary); }
.timeline {
  display: flex; gap: 6px; overflow-x: auto; padding: 18px 4px 28px;
  scroll-snap-type: x mandatory; scrollbar-color: var(--primary) transparent;
}
.tick {
  flex: 0 0 auto; width: 88px; scroll-snap-align: start; cursor: pointer;
  border: 0; background: transparent; padding: 0; font: inherit; text-align: left; color: inherit;
}
.tick .stem { height: 42px; width: 4px; border-radius: 99px; background: var(--line); margin: 0 auto 8px; }
.tick.on .stem { background: var(--accent); height: 56px; }
.tick.fail .stem { background: var(--bad); }
.tick .when { font-size: 11px; font-weight: 700; }
.tick .name { font-size: 11px; color: var(--muted); }
.range { width: 100%; accent-color: var(--ink); }
.report {
  background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 22px;
  box-shadow: 0 24px 60px rgba(12, 34, 38, 0.08);
}
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 16px 0; }
.kpi {
  background: oklch(0.97 0.01 175);
  border-radius: 14px;
  padding: 12px;
  border: 1px solid transparent;
  color: inherit;
  text-decoration: none;
  display: block;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}
.kpi b { display: block; font-size: 18px; line-height: 1.2; word-break: break-word; }
.kpi span { font-size: 12px; color: var(--muted); }
.kpi:hover {
  transform: translateY(-4px);
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 14px 32px rgba(12, 34, 38, 0.14);
}
a.kpi:hover b { color: var(--primary); }
a.kpi:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.countdown-wrap {
  margin: 28px 0 8px;
  padding: 28px 22px;
  border-radius: 22px;
  background: var(--ink);
  color: var(--ink-foreground);
  text-align: center;
}
.countdown-wrap[data-done="true"] { background: oklch(0.32 0.05 178); }
.countdown-num {
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.countdown-label { margin-top: 8px; color: var(--ink-muted); font-size: 14px; }
.countdown-bar {
  height: 6px; border-radius: 99px; background: rgba(255,255,255,.12); margin: 18px auto 0; max-width: 420px; overflow: hidden;
}
.countdown-bar > i {
  display: block; height: 100%; width: 0; background: var(--accent); border-radius: 99px;
  transition: width 0.2s linear;
}
.dump { font: 11.5px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--ink); color: var(--ink-foreground); border-radius: 14px; padding: 14px; }
.json-title { margin: 18px 0 8px; font-size: 1.1rem; }
.json-live {
  margin: 0;
  font: 12.5px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--ink);
  color: var(--ink-foreground);
  border-radius: 14px;
  padding: 16px 18px;
  white-space: pre-wrap;
  word-break: break-word;
  overflow: visible;
}
.view-tabs { display: flex; gap: 8px; margin: 28px 0 12px; }
.view-tabs button {
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: #fff;
  padding: 8px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
}
.view-tabs button.on { background: var(--ink); color: var(--ink-foreground); }
#plot { width: 100%; height: auto; border-radius: 14px; display: block; background: var(--ink); }
.plot-legend { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 10px; font-size: 13px; color: var(--muted); }
.plot-legend i { display: inline-block; width: 22px; height: 3px; margin-right: 6px; vertical-align: middle; }
.lg-sample { background: #9ad7ff; }
.lg-min { background: repeating-linear-gradient(90deg, #7dffb1 0 7px, transparent 7px 13px); }
.lg-med { background: repeating-linear-gradient(90deg, #ffd36a 0 7px, transparent 7px 13px); }
.lg-max { background: repeating-linear-gradient(90deg, #ff8a8a 0 7px, transparent 7px 13px); }
.action[disabled] { opacity: 0.45; pointer-events: none; }
.hint { color: var(--muted); font-size: 14px; }
.api-docs { margin: 48px 0 8px; }
.api-docs h2 { margin: 8px 0 6px; font-size: 1.8rem; letter-spacing: -0.03em; }
.api-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px 14px;
  margin: 12px 0;
}
.api-card h3 { margin: 0 0 8px; font-size: 16px; }
.api-card h3 code { font-size: 14px; }
.api-card p { margin: 0 0 10px; color: var(--muted); font-size: 14px; line-height: 1.5; }
.sig {
  font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--ink);
  color: var(--ink-foreground);
  border-radius: 10px;
  padding: 10px 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.api-try {
  display: inline-flex;
  margin: 10px 8px 0 0;
  border-radius: 999px;
  border: 1px solid var(--ink);
  padding: 7px 12px;
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
}
.api-try:hover { background: var(--ink); color: var(--ink-foreground); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
.verdict {
  margin: 18px 0 8px;
  padding: 20px 22px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
}
.verdict h2 { margin: 0 0 8px; font-size: 1.6rem; }
.verdict.yes { background: #e8f6ee; border-color: #b7e0c5; }
.verdict.maybe { background: #fff6e5; border-color: #ead7a4; }
.verdict.no { background: #f6f7f6; }
.verdict ol { margin: 8px 0 0; padding-left: 1.2em; color: var(--muted); font-size: 14px; line-height: 1.55; }
.verdict .conf { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary); }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 14px; }
.tabs button {
  border-radius: 999px; border: 1px solid var(--line); background: #fff; padding: 7px 12px; cursor: pointer; font: inherit; font-size: 13px;
}
.tabs button.on { background: var(--ink); color: var(--ink-foreground); border-color: var(--ink); }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data th, table.data td { border-bottom: 1px solid var(--line); padding: 7px 8px; text-align: left; vertical-align: top; }
table.data th { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
pre.dump {
  font: 11.5px/1.45 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--ink); color: var(--ink-foreground); border-radius: 14px; padding: 14px; overflow: auto; max-height: 420px;
}
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.card { border: 1px solid var(--line); border-radius: 16px; padding: 14px; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p, .card li { font-size: 13px; color: var(--muted); line-height: 1.5; }
.pill { display: inline-block; border-radius: 999px; padding: 2px 8px; font-size: 11px; font-weight: 700; background: #e7f3ee; }
.pill.bad { background: #fde8e8; color: var(--bad); }
a.ext { color: var(--primary); font-weight: 600; }