/* Layout: the ocean canvas fills the screen, a thin HUD rides the top edge, and every menu is one floating card. */
:root {
  color-scheme: dark;
  --abyss: #07090d;
  --ink: #f5f5f5;
  --ink-2: #d4d4d4;
  --muted: #a3a3a3;
  --faint: #8a8a8a;
  --panel: rgba(17, 17, 17, 0.86);
  --rule: rgba(245, 245, 245, 0.09);
  --blue: #2563eb;
  --blue-hover: #3b74f0;
  --tail: #8bd5ff;
  --mid: #3d98fa;
  --amber: #fbbf24;
  --amber-bg: rgba(245, 158, 11, 0.15);
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[hidden] { display: none !important; }
html, body { height: 100%; overflow: hidden; }
body {
  margin: 0;
  background: var(--abyss);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

#sea {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  cursor: pointer;
}

/* HUD */
.hud {
  position: fixed;
  inset: 0 0 auto;
  padding-block: max(14px, env(safe-area-inset-top, 0px)) 14px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px 28px;
  pointer-events: none;
  background: linear-gradient(rgba(7, 9, 13, 0.55), rgba(7, 9, 13, 0));
  transition: opacity 0.4s ease, visibility 0.4s;
}
.hud.is-hidden { opacity: 0; visibility: hidden; }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand canvas { width: 34px; height: 34px; flex: none; }
.brand-text { display: grid; min-width: 0; }
.brand-name { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; line-height: 1.25; }
.run-id {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.metrics { display: flex; gap: 24px; margin: 0; font-family: var(--mono); }
.metric { display: grid; gap: 1px; }
.metric dt { font-size: 11px; color: var(--faint); letter-spacing: 0.04em; }
.metric dd {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  min-width: 6.5ch;
}
.metric-best dd { color: var(--tail); }
.patience-bar {
  display: block;
  width: 96px;
  height: 6px;
  margin-top: 9px;
  border-radius: 3px;
  background: rgba(245, 245, 245, 0.14);
  overflow: hidden;
}
.patience-bar span {
  display: block;
  height: 100%;
  background: var(--mid);
  transform-origin: left center;
}
.patience-bar.is-low span { background: var(--amber); }
.icon-btn {
  pointer-events: auto;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 999px;
  background: rgba(245, 245, 245, 0.08);
  color: var(--ink-2);
  display: grid;
  place-items: center;
  cursor: pointer;
}
.icon-btn:hover { background: rgba(245, 245, 245, 0.14); color: var(--ink); }
.icon-btn svg { width: 16px; height: 16px; }

@media (max-width: 720px) {
  .hud { grid-template-columns: minmax(0, 1fr) auto; gap: 10px 16px; }
  .metrics { grid-column: 1 / -1; grid-row: 2; gap: 18px; }
  .metric-step { display: none; }
  .patience-bar { width: 72px; }
}

.hint {
  position: fixed;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 44px);
  transform: translateX(-50%);
  margin: 0;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(17, 17, 17, 0.72);
  color: var(--ink-2);
  font-size: 14px;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.5s ease;
}
.hint.is-hidden { opacity: 0; }

/* Cards */
.stage {
  position: fixed;
  inset: 0;
  overflow-y: auto;
  display: grid;
  padding-block: max(24px, env(safe-area-inset-top, 0px)) max(24px, env(safe-area-inset-bottom, 0px));
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.card {
  margin: auto;
  width: 100%;
  max-width: 540px;
  box-sizing: border-box;
  display: grid;
  gap: 22px;
  padding: 28px;
  border: 1px solid var(--rule);
  border-radius: 18px;
  background: var(--panel);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.card:focus { outline: none; }
.card.intro { max-width: 480px; }
.card.pause { max-width: 360px; }
@media (min-width: 960px) {
  .stage.is-left .card { margin-left: max(6vw, 48px); }
}
@media (max-width: 480px) {
  .card { padding: 22px 20px; gap: 18px; }
}

.intro-head { display: flex; align-items: center; gap: 12px; }
.intro-head canvas { width: 44px; height: 44px; flex: none; }
.eyebrow { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--muted); }
h1, h2 { margin: 0; font-weight: 600; text-wrap: balance; }
h1 { font-size: clamp(40px, 9vw, 58px); line-height: 1; letter-spacing: -0.035em; }
h2 { font-size: 28px; line-height: 1.1; letter-spacing: -0.02em; }
.lede { margin: 0; font-size: 17px; line-height: 1.55; color: var(--ink-2); max-width: 40ch; }
.rules { display: grid; gap: 12px; margin: 0; }
.rules div { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 12px; align-items: baseline; }
.rules dt { font-family: var(--mono); font-size: 13px; color: var(--tail); }
.rules dd { margin: 0; color: var(--ink-2); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.keys { font-size: 13px; color: var(--muted); }
.keys-touch { display: none; }
@media (hover: none) and (pointer: coarse) {
  .keys-pointer { display: none; }
  .keys-touch { display: inline; }
}
kbd {
  font-family: var(--mono);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 5px;
  background: rgba(245, 245, 245, 0.09);
  color: var(--ink-2);
}
.foot { margin: 0; font-family: var(--mono); font-size: 12px; color: var(--muted); }

.btn {
  font: inherit;
  font-size: 15px;
  font-weight: 500;
  min-height: 44px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-hover); transform: translateY(-1px); }
.btn-quiet { background: transparent; color: var(--ink-2); border-radius: 10px; padding: 0 14px; }
.btn-quiet:hover { background: rgba(245, 245, 245, 0.07); color: var(--ink); }
.btn:focus-visible, .icon-btn:focus-visible, a:focus-visible {
  outline: 2px solid var(--mid);
  outline-offset: 2px;
}

/* Run card */
.result-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px; }
.run-name { margin: 0; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.status, .pb {
  font-family: var(--mono);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
}
.status { color: var(--amber); background: var(--amber-bg); }
.pb { justify-self: start; color: var(--tail); background: rgba(61, 152, 250, 0.16); }
.score { display: grid; gap: 8px; }
.score-label { font-size: 13px; color: var(--muted); }
.score-value {
  font-family: var(--mono);
  font-size: clamp(44px, 11vw, 64px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.reason { margin: 0; color: var(--ink-2); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 0; }
.stats div { display: grid; gap: 2px; min-width: 0; }
.stats dt { font-size: 12px; color: var(--muted); }
.stats dd { margin: 0; font-family: var(--mono); font-size: 16px; font-variant-numeric: tabular-nums; }
.chart { margin: 0; display: grid; gap: 8px; }
.chart canvas { display: block; width: 100%; height: 180px; }
.chart figcaption { font-size: 12px; color: var(--muted); }
.runs-wrap { overflow-x: auto; }
.runs { width: 100%; border-collapse: collapse; font-size: 13px; }
.runs th { text-align: left; font-weight: 500; font-size: 12px; color: var(--muted); padding: 0 12px 8px 0; white-space: nowrap; }
.runs td {
  padding: 8px 12px 8px 0;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.runs th:last-child, .runs td:last-child { padding-right: 0; }
.runs .num { text-align: right; }
.runs tr.is-current td { color: var(--tail); }
.chip {
  margin-left: 6px;
  padding: 1px 7px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.4);
  color: var(--ink);
  font-size: 11px;
}
.out { color: var(--tail); font-size: 14px; text-decoration: none; justify-self: start; }
.out:hover { text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  .hud, .hint, .btn { transition: none; }
  .btn-primary:hover { transform: none; }
}