/* TENTHS — Chart & Glass v1 (see DESIGN-SYSTEM.md). Two materials:
   chart paper (computed reference, ink) and HUD glass (rider data, green). */

@font-face {
  font-family: 'B612';
  src: url('/fonts/b612-400.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'B612';
  src: url('/fonts/b612-700.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: 'B612 Mono';
  src: url('/fonts/b612mono-400.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'B612 Mono';
  src: url('/fonts/b612mono-700.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}

:root {
  --deck: #151A21;
  --panel: #1C232D;
  --line: #2A3440;
  --ins: #E9EEF3;
  --muted: #93A1AF;
  --chart: #F7F8F5;
  --chart-ink: #14181D;
  --chart-mut: #4A5158;
  --chart-rule: #C9CEC9;
  --hud: #45D06C;
  --hud-dim: #2C7A47;
  --hud-ink: #1E6B3E;
  --sans: 'B612', system-ui, sans-serif;
  --mono: 'B612 Mono', ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  background: var(--deck);
  color: var(--ins);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
}

a { color: var(--hud); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--hud);
  outline-offset: 2px;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- header / footer ---------- */
.site-head {
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.site-head .wrap { display: flex; align-items: baseline; gap: 28px; flex-wrap: wrap; }
.wordmark {
  font: 700 20px var(--mono);
  letter-spacing: 0.14em;
  color: var(--ins);
}
.wordmark em { color: var(--hud); font-style: normal; }
.site-head nav { display: flex; gap: 18px; margin-left: auto; }
.site-head nav a { color: var(--muted); font-size: 14px; }
.site-head nav a[aria-current] { color: var(--hud); }

.site-foot {
  border-top: 1px solid var(--line);
  margin-top: 72px;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13px;
}
.site-foot .wrap { display: grid; gap: 8px; }
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--hud); }

/* ---------- shared blocks ---------- */
.eyebrow {
  font: 400 12px var(--mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--hud-dim);
  display: block;
  margin-bottom: 8px;
}
h1, h2, h3 { line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: clamp(30px, 5vw, 46px); }
h2 { font-size: clamp(22px, 3.4vw, 30px); }
h3 { font-size: 18px; }
.section { margin: 64px 0 0; }
.lede { color: var(--muted); max-width: 62ch; margin-top: 12px; }
.num, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.btn {
  display: inline-block;
  font: 700 14px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 12px 22px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--hud); color: var(--deck); }
.btn-primary:hover { background: #57DC7B; text-decoration: none; }
.btn-ghost { border-color: var(--hud-dim); color: var(--hud); background: none; }
.btn-ghost:hover { border-color: var(--hud); text-decoration: none; }
.btn[disabled] { opacity: 0.45; cursor: default; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
}

/* ---------- chart paper ---------- */
.chart {
  background: var(--chart);
  color: var(--chart-ink);
  border-radius: 2px;
  padding: 18px;
  border: 1px solid #0C0F13;
}
.chart .eyebrow { color: var(--chart-mut); }
.chart a { color: var(--hud-ink); }
.chart hr, .plate hr { border: 0; border-top: 1px solid var(--chart-rule); margin: 10px 0; }
.chart .you, .plate .you { color: var(--hud-ink); font-weight: 700; }

/* ---------- the corner plate (signature) ---------- */
.plate {
  background: var(--chart);
  color: var(--chart-ink);
  border-radius: 2px;
  border: 1px solid #0C0F13;
  padding: 0;
  overflow: hidden;
}
.plate-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px 8px;
  border-bottom: 2px solid var(--chart-ink);
}
.plate-title { font: 700 13px var(--mono); letter-spacing: 0.08em; text-transform: uppercase; }
.plate-no { font: 700 15px var(--mono); }
.plate-body { padding: 12px 14px 14px; }
.plate svg { display: block; width: 100%; height: auto; }
.plate-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--chart-rule);
  margin-top: 10px;
}
.plate-cell { padding: 6px 8px; border-right: 1px solid var(--chart-rule); }
.plate-cell:last-child { border-right: 0; }
.plate-cell .k {
  font: 400 10px var(--mono);
  letter-spacing: 0.12em;
  color: var(--chart-mut);
  text-transform: uppercase;
  display: block;
}
.plate-cell .v { font: 700 16px var(--mono); }
.plate-min {
  margin-top: 8px;
  padding: 6px 8px;
  border: 1px solid var(--chart-ink);
  font: 400 12px var(--mono);
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.plate-flag {
  display: inline-block;
  font: 700 10px var(--mono);
  letter-spacing: 0.1em;
  padding: 2px 6px;
  border-radius: 2px;
  background: var(--hud-ink);
  color: var(--chart);
}

/* ---------- score dials ---------- */
.scores { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.score { border: 1px solid var(--line); border-radius: 6px; padding: 16px; background: var(--panel); }
.score .k { font: 400 12px var(--mono); letter-spacing: 0.16em; color: var(--muted); text-transform: uppercase; }
.score .v { font: 700 40px var(--mono); color: var(--hud); line-height: 1.1; }
.score .v small { font-size: 16px; color: var(--muted); font-weight: 400; }
.score .flags { margin-top: 6px; font-size: 13px; color: var(--muted); }
.score .flags b { color: var(--ins); font-weight: 700; }

/* ---------- tables ---------- */
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th {
  font: 400 11px var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
}
table.data td { padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.data td.num { font-family: var(--mono); }
tr.excluded td { color: var(--muted); text-decoration: line-through; }

/* ---------- drop zone ---------- */
.drop {
  display: block;
  border: 2px dashed var(--hud-dim);
  border-radius: 6px;
  padding: 34px 22px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--hud); color: var(--ins); }
.drop input { display: none; }
.drop .big { font: 700 17px var(--sans); color: var(--ins); display: block; margin-bottom: 6px; }

/* ---------- verified badge ---------- */
.verified {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font: 400 12px var(--mono);
  letter-spacing: 0.08em;
  color: var(--hud);
  border: 1px solid var(--hud-dim);
  border-radius: 2px;
  padding: 6px 10px;
}

/* ---------- hero draw-in ---------- */
@keyframes traceDraw { to { stroke-dashoffset: 0; } }
.trace-anim {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: traceDraw 0.9s ease-out 0.25s forwards;
}
@media (prefers-reduced-motion: reduce) {
  .trace-anim { stroke-dashoffset: 0; }
}

/* ---------- debrief output ---------- */
.debrief { max-width: 74ch; }
.debrief h3 {
  font: 700 13px var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hud-ink);
  margin: 18px 0 6px;
}
.debrief p, .debrief li { font-size: 15px; }
.debrief ul, .debrief ol { padding-left: 20px; }

@media (max-width: 640px) {
  .plate-grid { grid-template-columns: repeat(2, 1fr); }
  .plate-cell:nth-child(2n) { border-right: 0; }
  .site-head nav { gap: 12px; }
}

/* ---------- hero grid ---------- */
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 36px; align-items: start; }
@media (max-width: 780px) { .hero-grid { grid-template-columns: 1fr; } }