/* LANESPLIT shell — instrument-cluster typography, nothing that competes with the render. */
:root {
  --ink: #eef2fa;
  --dim: #93a0b8;
  --hot: #ff3b30;
  --amber: #ffb02e;
  --cool: #4fd8ff;
  --panel: rgba(9, 12, 20, 0.82);
  --edge: rgba(190, 210, 255, 0.16);
  --mono: 'DIN Alternate', 'Bahnschrift', 'Roboto Condensed', 'Arial Narrow', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #05070c;
  color: var(--ink);
  font-family: var(--mono);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

#shell { position: fixed; inset: 0; }

#game-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }

.hidden { display: none !important; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------------- HUD */
#hud {
  position: absolute; inset: 0; pointer-events: none;
  text-transform: uppercase; letter-spacing: 0.08em;
}

.hud-top {
  position: absolute; top: 0; left: 0; right: 0;
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 28px;
  padding: 22px 34px;
  background: linear-gradient(180deg, rgba(4, 6, 11, 0.62), transparent);
}

.hud-cell { display: flex; flex-direction: column; line-height: 1; }
.hud-cell.align-right { align-items: flex-end; }
.hud-cell span { font-size: 11px; color: var(--dim); letter-spacing: 0.22em; }
.hud-cell strong { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.hud-cell i { font-size: 11px; color: var(--dim); font-style: normal; letter-spacing: 0.2em; }

.hud-phase { text-align: center; min-width: 240px; }
.hud-phase b { font-size: 15px; letter-spacing: 0.28em; }
.phase-track {
  height: 2px; margin: 8px 0 6px; background: rgba(255, 255, 255, 0.14); overflow: hidden;
}
.phase-track i { display: block; height: 100%; width: 0; background: var(--cool); }
.hud-phase small { font-size: 10px; color: var(--dim); letter-spacing: 0.2em; }

.cluster { position: absolute; right: 40px; bottom: 34px; width: 216px; height: 216px; }
.dial { position: absolute; inset: 0; width: 100%; height: 100%; }
.dial-bg { fill: rgba(6, 9, 16, 0.55); stroke: var(--edge); stroke-width: 1; }
.dial-track { stroke: rgba(255, 255, 255, 0.13); stroke-width: 9; stroke-linecap: round; }
.dial-fill {
  stroke: var(--cool); stroke-width: 9; stroke-linecap: round;
  stroke-dasharray: 405; stroke-dashoffset: 405;
  filter: drop-shadow(0 0 6px rgba(79, 216, 255, 0.55));
}
.dial-fill.redline { stroke: var(--hot); filter: drop-shadow(0 0 9px rgba(255, 59, 48, 0.7)); }
#dial-ticks line { stroke: rgba(255, 255, 255, 0.35); stroke-width: 2; }

.readout {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2px;
}
.readout strong { font-size: 58px; font-weight: 700; line-height: 0.9; font-variant-numeric: tabular-nums; }
.readout span { font-size: 11px; color: var(--dim); letter-spacing: 0.28em; }

.rev {
  position: absolute; left: 50%; bottom: -14px; transform: translateX(-50%);
  width: 168px; height: 4px; background: rgba(255, 255, 255, 0.12);
}
.rev i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--cool), var(--amber) 68%, var(--hot)); }

.left-stack {
  position: absolute; left: 34px; bottom: 34px;
  display: flex; flex-direction: column; gap: 14px; min-width: 210px;
}
.cam-chip {
  display: flex; align-items: baseline; gap: 10px;
  padding: 8px 12px; background: var(--panel); border: 1px solid var(--edge);
}
.cam-chip span { font-size: 10px; color: var(--dim); letter-spacing: 0.24em; }
.cam-chip b { font-size: 16px; letter-spacing: 0.16em; }
.cam-chip small { margin-left: auto; font-size: 10px; color: var(--dim); border: 1px solid var(--edge); padding: 1px 5px; }

.boost span, .lean span { font-size: 10px; color: var(--dim); letter-spacing: 0.24em; }
.boost-track { height: 6px; margin-top: 6px; background: rgba(255, 255, 255, 0.12); }
.boost-track i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--cool), #fff); }
.lean { display: flex; gap: 10px; align-items: baseline; }
.lean b { font-size: 20px; font-variant-numeric: tabular-nums; }

#chain {
  position: absolute; left: 50%; top: 42%; transform: translateX(-50%);
  font-size: 34px; font-weight: 700; letter-spacing: 0.1em; opacity: 0;
  text-shadow: 0 0 22px rgba(79, 216, 255, 0.75);
}
#chain.pop { animation: pop 620ms ease-out; }
@keyframes pop {
  0% { opacity: 0; transform: translateX(-50%) scale(0.82); }
  18% { opacity: 1; transform: translateX(-50%) scale(1.06); }
  100% { opacity: 0; transform: translateX(-50%) scale(1.0) translateY(-26px); }
}

#toast {
  position: absolute; left: 50%; top: 15%; transform: translateX(-50%);
  font-size: 13px; letter-spacing: 0.3em; color: var(--amber); opacity: 0;
  transition: opacity 260ms ease;
}
#toast.show { opacity: 1; }

/* ------------------------------------------------------------------ screens */
.screen {
  position: absolute; inset: 0; display: none;
  align-items: center; justify-content: center;
  background: radial-gradient(120% 100% at 50% 0%, rgba(8, 12, 22, 0.55), rgba(3, 5, 9, 0.92));
  backdrop-filter: blur(3px);
}
.screen.is-visible { display: flex; }

.title-wrap { text-align: center; max-width: 760px; padding: 0 24px; }
.eyebrow { font-size: 11px; letter-spacing: 0.42em; color: var(--dim); margin: 0 0 18px; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(64px, 12vw, 148px); line-height: 0.82; letter-spacing: -0.02em; }
h1 span { display: block; font-weight: 300; color: var(--dim); }
h1 strong { display: block; font-weight: 800; color: var(--ink); text-shadow: 0 0 48px rgba(255, 59, 48, 0.35); }
.tagline { margin: 22px 0 30px; font-size: 13px; letter-spacing: 0.24em; color: var(--dim); text-transform: uppercase; }

.menu { display: flex; gap: 14px; justify-content: center; }
button {
  font-family: inherit; text-transform: uppercase; letter-spacing: 0.18em;
  font-size: 13px; padding: 15px 30px; cursor: pointer; border: 1px solid var(--edge);
  background: transparent; color: var(--ink); transition: background 160ms, border-color 160ms, transform 120ms;
}
button:hover, button:focus-visible { background: rgba(255, 255, 255, 0.08); border-color: rgba(255, 255, 255, 0.5); }
button:active { transform: translateY(1px); }
button.primary { background: var(--hot); border-color: var(--hot); color: #fff; font-weight: 700; }
button.primary:hover { background: #ff5348; border-color: #ff5348; }

.hint { margin-top: 20px; font-size: 10px; letter-spacing: 0.3em; color: var(--dim); }
.facts { list-style: none; display: flex; gap: 46px; justify-content: center; padding: 0; margin: 46px 0 0; }
.facts li { display: flex; flex-direction: column; gap: 4px; }
.facts b { font-size: 30px; }
.facts span { font-size: 9px; letter-spacing: 0.22em; color: var(--dim); }

.panel {
  background: var(--panel); border: 1px solid var(--edge); padding: 40px 44px;
  max-width: 660px; width: calc(100% - 48px);
}
.panel.narrow { max-width: 380px; text-align: center; }
h2 { margin: 0 0 24px; font-size: 26px; font-weight: 600; letter-spacing: 0.02em; }

.keys { display: grid; grid-template-columns: 130px 1fr; gap: 12px 22px; margin: 0 0 24px; }
.keys dt { font-size: 12px; letter-spacing: 0.14em; color: var(--cool); }
.keys dd { margin: 0; font-size: 13px; color: var(--dim); letter-spacing: 0.04em; }
.note { font-size: 12px; line-height: 1.7; color: var(--dim); margin: 0 0 26px; }

.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 30px; }
.result-grid span { display: block; font-size: 10px; letter-spacing: 0.22em; color: var(--dim); margin-bottom: 5px; }
.result-grid strong { font-size: 22px; font-variant-numeric: tabular-nums; }

.panel-actions { display: flex; gap: 12px; justify-content: flex-end; }
.panel.narrow .panel-actions { justify-content: center; }

@media (max-width: 900px) {
  .cluster { width: 158px; height: 158px; right: 18px; bottom: 18px; }
  .readout strong { font-size: 40px; }
  .left-stack { left: 18px; bottom: 18px; min-width: 160px; }
  .result-grid { grid-template-columns: repeat(2, 1fr); }
}