:root {
  --bg-a: #f4f0e8;
  --bg-b: #fefaf5;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-border: rgba(78, 63, 43, 0.14);
  --text: #2b241d;
  --muted: #6f6256;
  --accent: #ff8452;
  --accent-strong: #ff6f3d;
  --surface: rgba(255, 255, 255, 0.5);
  --shadow: 0 28px 70px rgba(79, 61, 42, 0.14);
}

[data-theme="dark"] {
  --bg-a: #1a1a1a;
  --bg-b: #121212;
  --panel: rgba(40, 40, 40, 0.85);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text: #e0e0e0;
  --muted: #a0a0a0;
  --accent: #4da6ff;
  --accent-strong: #3d8bff;
  --surface: rgba(60, 60, 60, 0.6);
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 132, 82, 0.18), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(255, 208, 109, 0.14), transparent 22%),
    linear-gradient(180deg, var(--bg-a), var(--bg-b));
}

.runner-app {
  width: min(1260px, 100%);
  margin: 0 auto;
  padding: 18px 18px 40px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto auto;
  gap: 16px;
  align-items: center;
  padding: 18px;
  border-radius: 28px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.45rem);
}

.summary {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.hud,
.actions,
.status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.stat-card,
.status-pill,
.status-link,
.action-button,
.overlay-card,
.info-card {
  border: 1px solid var(--panel-border);
}

.stat-card {
  min-width: 96px;
  padding: 10px 14px;
  border-radius: 18px;
  background: var(--surface);
  text-align: center;
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.stat-card strong {
  display: block;
  margin-top: 4px;
  font-size: 1.35rem;
}

.action-button {
  padding: 12px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.5);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.action-button:hover,
.action-button:focus-visible,
.status-link:hover,
.status-link:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 132, 82, 0.4);
  outline: none;
}

.action-button-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.status-strip {
  margin-top: 16px;
  padding: 0 4px;
}

.status-pill,
.status-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.56);
  color: var(--muted);
  text-decoration: none;
}

.status-link {
  color: var(--text);
  font-weight: 700;
}

.canvas-card {
  margin-top: 16px;
  padding: 16px;
  border-radius: 30px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.canvas-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 1280 / 420;
  overflow: hidden;
  border-radius: 24px;
  background: linear-gradient(180deg, #f2eee4, #e8dfcf);
  touch-action: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.overlay-screen {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: linear-gradient(180deg, rgba(29, 24, 19, 0.18), rgba(29, 24, 19, 0.28));
  backdrop-filter: blur(8px);
}

.hidden {
  display: none !important;
}

.overlay-card {
  width: min(480px, 100%);
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
  text-align: center;
}

.overlay-card h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.overlay-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.6;
}

.gameover-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.gameover-stats div {
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.46);
}

.gameover-stats span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.gameover-stats strong {
  display: block;
  margin-top: 4px;
  font-size: 1.35rem;
}

.toast-banner {
  position: absolute;
  left: 50%;
  top: 20px;
  transform: translateX(-50%) translateY(-12px);
  min-width: 220px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(29, 24, 19, 0.76);
  color: #fff;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast-banner.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.info-card {
  padding: 18px;
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.info-card h3 {
  margin: 0 0 10px;
}

.info-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

@media (max-width: 1040px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .hud,
  .actions {
    justify-content: center;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .runner-app {
    padding: 12px 12px 28px;
  }

  .canvas-card {
    padding: 12px;
  }

  .gameover-stats {
    grid-template-columns: 1fr;
  }
}