:root {
  color-scheme: dark;
  --bg-top: #041b2f;
  --bg-bottom: #08222a;
  --shell: rgba(5, 15, 24, 0.78);
  --shell-border: rgba(146, 227, 255, 0.16);
  --canvas-edge: #1f5263;
  --text-main: #edf7fb;
  --text-muted: #a6c4d2;
  --accent: #ff9e44;
  --accent-2: #6ce5ff;
  --shadow: rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI Variable", "Trebuchet MS", sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(255, 158, 68, 0.12), transparent 28%),
    radial-gradient(circle at bottom right, rgba(108, 229, 255, 0.1), transparent 34%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.game-shell {
  width: min(1040px, 100%);
  padding: 24px;
  border: 1px solid var(--shell-border);
  border-radius: 28px;
  background: var(--shell);
  box-shadow: 0 24px 48px var(--shadow);
  backdrop-filter: blur(12px);
}

.title-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 0.95;
}

.title-actions {
  display: flex;
  gap: 10px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  font: inherit;
  font-weight: 700;
  color: #081219;
  background: linear-gradient(135deg, #ffcc6d, var(--accent));
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(255, 158, 68, 0.26);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

button:hover,
button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(255, 158, 68, 0.34);
}

button:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.75);
  outline-offset: 3px;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--canvas-edge);
  border-radius: 20px;
  background: linear-gradient(180deg, #0e3244, #10212d);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  touch-action: none;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 16px;
}

.status-pill {
  margin: 0;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 0.95rem;
}

.status-pill[data-mode="running"] {
  color: var(--accent-2);
}

.status-pill[data-mode="paused"] {
  color: #ffcc6d;
}

.status-pill[data-mode="gameover"] {
  color: #ff8f75;
}

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 10px;
}

.secondary-button {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  box-shadow: none;
}

.secondary-button[aria-pressed="true"] {
  color: #081219;
  background: linear-gradient(135deg, #88f1ff, var(--accent-2));
}

.secondary-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.touch-controls {
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.touch-button {
  padding: 16px 12px;
  font-size: 1rem;
  box-shadow: none;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
  touch-action: none;
  user-select: none;
}

.touch-button:hover,
.touch-button:focus-visible {
  box-shadow: none;
}

.touch-button-accent {
  color: #081219;
  background: linear-gradient(135deg, #ffcc6d, var(--accent));
}

.touch-button.is-active {
  background: linear-gradient(135deg, #88f1ff, var(--accent-2));
  color: #081219;
}

.meta {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.summary {
  margin: 0;
  max-width: 72ch;
  color: var(--text-muted);
  line-height: 1.6;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.legend span {
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
}

.legend strong {
  color: var(--text-main);
}

@media (max-width: 720px) {
  .page {
    padding: 12px;
  }

  .game-shell {
    padding: 16px;
    border-radius: 22px;
  }

  .title-row {
    align-items: start;
    flex-direction: column;
  }

  .title-actions,
  .toolbar-actions {
    width: 100%;
  }

  button {
    width: 100%;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .status-pill {
    width: fit-content;
  }

  .touch-controls {
    display: grid;
  }
}

@media (pointer: coarse) {
  .touch-controls {
    display: grid;
  }
}