:root {
  color-scheme: dark;
  --bg-0: #0a0d1c;
  --bg-1: #131732;
  --accent: #7aa8ff;
  --accent-2: #c084fc;
  --text: #eef1ff;
  --text-muted: #aab3d0;
  --error: #ff7a8a;
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --radius: 22px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg-0);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.bg-aurora {
  position: fixed;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(40% 40% at 20% 20%, rgba(122, 168, 255, 0.35), transparent 70%),
    radial-gradient(45% 45% at 80% 30%, rgba(192, 132, 252, 0.30), transparent 70%),
    radial-gradient(50% 50% at 50% 90%, rgba(80, 220, 220, 0.20), transparent 70%),
    linear-gradient(180deg, #0a0d1c 0%, #141a37 100%);
  filter: blur(20px) saturate(120%);
}

.app {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: max(env(safe-area-inset-top), 24px) 24px 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.app-header {
  text-align: center;
}
.app-header h1 {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  margin: 0;
}
.app-header h1 span {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius);
}

.card {
  padding: 28px;
}

.screen { width: 100%; }
.hidden { display: none !important; }

h2 {
  margin: 0 0 8px;
  font-weight: 600;
  font-size: 1.2rem;
}

.muted { color: var(--text-muted); margin: 4px 0; }
.small { font-size: 0.85rem; }
.error { color: var(--error); margin-top: 12px; }

/* --- input screen --- */
#url-form {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
#url-input {
  flex: 1;
  min-width: 240px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s ease;
}
#url-input:focus { border-color: var(--accent); }

button {
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  border: none;
}

#submit-btn {
  padding: 14px 22px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0a0d1c;
  font-weight: 600;
  transition: transform 0.1s ease, box-shadow 0.2s ease;
}
#submit-btn:hover { box-shadow: 0 6px 18px rgba(122, 168, 255, 0.35); }
#submit-btn:active { transform: scale(0.98); }
#submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
  padding: 10px 16px;
  border-radius: 12px;
  margin-top: 16px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.ghost:hover { color: var(--text); border-color: var(--accent); }
.ghost.small { padding: 6px 12px; margin-top: 0; font-size: 0.85rem; }

/* --- progress --- */
.bar {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
  margin: 16px 0 8px;
}
.bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.3s ease;
}

/* --- player --- */
.player-card { padding: 18px; }
.player-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  gap: 12px;
}
#player-title {
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.falling-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  max-height: 70vh;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
}
#falling-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.round {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  border: 1px solid var(--glass-border);
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, transform 0.1s ease;
}
.round:hover { background: rgba(255, 255, 255, 0.2); }
.round:active { transform: scale(0.95); }

.time {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 44px;
  text-align: center;
}

.seek {
  flex: 1;
  min-width: 160px;
}
#seek {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  outline: none;
}
#seek::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}
#seek::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

@media (max-width: 600px) {
  .app { padding-left: 16px; padding-right: 16px; }
  .card { padding: 20px; }
  .player-card { padding: 14px; }
}