/* --- Layout & Theme --- */
:root {
  --bg: radial-gradient(
    1200px 800px at 20% -10%,
    #fef6ff 0%,
    #f4f7ff 35%,
    #eef5ff 60%,
    #e9f2ff 100%
  );
  --glass: rgba(255, 255, 255, 0.7);
  --border: rgba(0, 0, 0, 0.06);
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  --ok: #2ecc71;
  --bad: #ff4d4f;
  --pill: #111827;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    sans-serif;
  background: var(--bg);
  color: #111827;
}

.app-header {
  text-align: center;
  padding: 28px 16px 8px;
}
.app-header h1 {
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: 0.2px;
}
.subtitle {
  margin: 0;
  color: #6b7280;
}

.layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 20px;
  padding: 18px;
  max-width: 800px;
  margin: 0 auto;
}

.glass {
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

/* --- Camera card --- */
.camera-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#canvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  display: block;
  border-radius: 14px;
  background-image: url('resources/silhouette.png');
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border: 1px solid var(--border);
}

/* HUD */
.hud .progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
progress {
  width: 100%;
  height: 12px;
}
#timing {
  min-width: 110px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: #6b7280;
}
.controls {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
.controls button {
  flex: 1;
  padding: 10px 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: white;
  cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.2s ease;
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.06);
}
.controls button:active {
  transform: translateY(1px);
}

.controls button:hover {
  transform: translateY(1px);
  background: #f3f4f6;
}

/* --- Side card --- */
.side-card {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.now-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.pill {
  background: #eef2ff;
  color: var(--pill);
  font-weight: 700;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
}
#movementImage {
  width: 120px;
  height: 140px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: white;
}

.labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.labels div {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 14px;
  color: #374151;
}

/* --- Feedback --- */
.feedback {
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
  border: 1px solid var(--border);
  background: white;
  height: 100%;
}
.feedback.success {
  background: #eafff3;
  color: #065f46;
  box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.2);
  animation: pop 300ms ease;
}
.feedback.fail {
  background: #fff1f2;
  color: #9f1239;
  box-shadow: 0 0 0 3px rgba(255, 77, 79, 0.18);
  animation: shake 420ms ease;
}

@keyframes pop {
  0% {
    transform: scale(0.98);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes shake {
  10%,
  90% {
    transform: translateX(-1px);
  }
  20%,
  80% {
    transform: translateX(2px);
  }
  30%,
  50%,
  70% {
    transform: translateX(-4px);
  }
  40%,
  60% {
    transform: translateX(4px);
  }
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }
  #canvas {
    aspect-ratio: 4 / 3;
  }
}