/* typingrace.app — one stylesheet for every page. */

:root {
  color-scheme: dark;
  --bg: #0a0f1e;
  --panel: #111a30;
  --panel-2: #17223d;
  --line: #26324f;
  --ink: #e9edf9;
  --muted: #9aa4c0;
  --accent: #5eead4;
  --accent-ink: #04211d;
  --good: #4ade80;
  --wrong: #fb7185;
  --amber: #fbbf24;
  --track: #1d2942;
  --radius: 12px;
  --max: 1080px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fc;
    --panel: #ffffff;
    --panel-2: #eef1f9;
    --line: #d9dfee;
    --ink: #131a2c;
    --muted: #5a6480;
    --accent: #0d9488;
    --accent-ink: #ffffff;
    --good: #15803d;
    --wrong: #dc2626;
    --amber: #b45309;
    --track: #e3e8f4;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

a { color: var(--accent); }

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; }
h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.7rem); margin-top: 1.8em; }
h3 { font-size: 1.15rem; margin-top: 1.4em; }
p { margin: 0 0 1em; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 58px;
  flex-wrap: wrap;
}
.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-right: auto;
}
.brand span { color: var(--accent); }
.site-nav { display: flex; gap: 16px; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 64px;
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}
.site-footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--ink); }

main { padding: 28px 0 8px; }

.lede { color: var(--muted); font-size: 1.08rem; max-width: 62ch; }

/* Race card */
.race-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin: 18px 0 28px;
}
.challenge {
  background: color-mix(in srgb, var(--amber) 16%, var(--panel));
  border: 1px solid var(--amber);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 16px;
}
.note {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 16px;
  color: var(--muted);
}

.config-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 16px;
}
.config-group { border: 0; padding: 0; margin: 0; }
.config-group legend {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 6px;
}
.chip-row { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 999px;
  padding: 7px 14px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); }
.chip.is-selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.chip small { opacity: 0.75; margin-left: 4px; }

.start-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.button {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 10px;
  padding: 11px 22px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.button:hover { filter: brightness(1.08); }
.button:disabled { opacity: 0.5; cursor: not-allowed; }
.button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.best { color: var(--muted); font-size: 0.92rem; }

/* Track */
.track { display: grid; gap: 10px; margin-bottom: 14px; }
.lane {
  display: grid;
  grid-template-columns: 92px 1fr minmax(120px, auto);
  gap: 12px;
  align-items: center;
}
.lane.is-player .lane-name { color: var(--accent); font-weight: 700; }
.lane-name { font-size: 0.92rem; white-space: nowrap; }
.lane-bar {
  position: relative;
  height: 14px;
  background: var(--track);
  border-radius: 999px;
}
.lane-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 55%, var(--track));
  transition: width 80ms linear;
}
.lane.is-player .lane-fill { background: var(--accent); }
.lane-dot {
  position: absolute;
  top: 50%;
  left: 0;
  width: 12px;
  height: 12px;
  margin-left: -6px;
  border-radius: 50%;
  background: var(--ink);
  transform: translateY(-50%);
  transition: left 80ms linear;
}
.lane-stat { font-size: 0.85rem; color: var(--muted); text-align: right; white-space: nowrap; }

/* Typing text */
.text-panel {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
}
#race-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.25rem;
  line-height: 1.9;
  max-height: 220px;
  overflow: hidden;
  white-space: pre-wrap;
  word-break: break-word;
}
#race-text .char { color: var(--muted); }
#race-text .is-correct { color: var(--good); }
#race-text .is-wrong { color: var(--wrong); text-decoration: underline wavy var(--wrong); }
#race-text .is-current {
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 3px;
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink { 50% { background: transparent; color: var(--ink); } }
@media (prefers-reduced-motion: reduce) {
  #race-text .is-current { animation: none; }
}
.hint { color: var(--muted); font-size: 0.9rem; margin-top: 12px; }

.stage-actions { margin-top: 14px; display: flex; gap: 10px; }

/* Result */
.result h2 { margin-top: 0; }
.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.stat-box {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}
.stat-box .stat-label { display: block; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.06em; }
.stat-box .stat-value { font-size: 1.35rem; font-weight: 700; }
.result-best { color: var(--amber); font-weight: 600; }
.result-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.share-status { color: var(--muted); font-size: 0.9rem; }

/* Content */
.prose { max-width: 72ch; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.prose table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.prose th, .prose td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.prose th { background: var(--panel-2); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.card h3 { margin-top: 0; }
.faq details {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; color: var(--muted); }
.inline-note {
  background: var(--panel-2);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 0 8px 8px 0;
  margin: 18px 0;
}

@media (max-width: 640px) {
  .lane { grid-template-columns: 76px 1fr; }
  .lane-stat { grid-column: 2; text-align: left; }
  #race-text { font-size: 1.1rem; }
  .race-card { padding: 14px; }
}