:root {
  color-scheme: dark;
  --ink: #fff8e8;
  --muted: #c7bfa7;
  --panel: rgba(28, 33, 30, 0.86);
  --panel-strong: rgba(15, 19, 18, 0.92);
  --line: rgba(255, 248, 232, 0.18);
  --amber: #ffc857;
  --moss: #78d37d;
  --blue: #7bd5ff;
  --berry: #c77dff;
  --bad: #ff6b6b;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 200, 87, 0.13), transparent 26rem),
    linear-gradient(145deg, #141617 0%, #23271e 46%, #24182a 100%);
  color: var(--ink);
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.shell {
  width: min(1180px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 20px 0 28px;
}

.top-nav {
  display: flex;
  gap: 10px;
  margin-bottom: 22px;
}

.top-nav a {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  padding: 10px 13px;
  border-radius: 8px;
  font-weight: 750;
}

.top-nav a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(255, 200, 87, 0.75);
  outline-offset: 2px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 20px;
  margin-bottom: 22px;
}

.eyebrow {
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  margin: 0 0 8px;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.3rem, 4rem, 4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  color: var(--muted);
  font-size: 1.06rem;
  max-width: 650px;
  margin: 12px 0 0;
}

.score-card {
  min-width: 150px;
  display: grid;
  grid-template-columns: auto auto;
  gap: 6px 14px;
  align-items: baseline;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.score-card span,
.label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.score-card strong {
  font-size: 1.2rem;
}

.game-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}

.stage-panel {
  padding: 14px;
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.status-row div {
  min-width: 0;
}

.status-row strong {
  display: block;
  margin-top: 3px;
  font-size: 1.1rem;
}

canvas {
  width: 100%;
  aspect-ratio: 920 / 580;
  display: block;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #111513;
  touch-action: none;
  cursor: crosshair;
}

.controls-panel {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brief h2 {
  margin: 0 0 6px;
  font-size: 1.22rem;
}

.brief p,
.message {
  color: var(--muted);
  margin: 0;
  line-height: 1.45;
}

.meter-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 750;
}

.meter-track {
  height: 13px;
  background: rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.meter-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--bad), var(--amber), var(--moss));
  transition: width 120ms ease-out;
}

.legend {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 750;
}

.legend span {
  display: flex;
  gap: 8px;
  align-items: center;
}

.legend i {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 16px currentColor;
}

.legend .amber { color: var(--amber); background: var(--amber); }
.legend .blue { color: var(--blue); background: var(--blue); }
.legend .green { color: var(--moss); background: var(--moss); }

.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

button {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

#snapBtn {
  grid-column: 1 / -1;
  color: #21170a;
  background: var(--amber);
  border-color: rgba(255, 200, 87, 0.85);
}

button:active {
  transform: translateY(1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.message.good { color: var(--moss); }
.message.bad { color: var(--bad); }

@media (max-width: 860px) {
  .shell {
    width: min(100vw - 18px, 700px);
    padding-top: 12px;
  }

  .hero,
  .game-wrap {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 2.55rem;
  }

  .score-card {
    width: 100%;
  }

  .controls-panel {
    order: -1;
  }
}