:root {
  --accent: 30, 215, 96;
  --bg: #111;
  --surface: #1a1a1a;
  --surface2: #242424;
  --text: #fff;
  --text-muted: #a0a0a0;
  --radius: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 1s ease;
  background: radial-gradient(
    ellipse 80% 60% at 50% 0%,
    rgba(var(--accent), 0.18) 0%,
    #111 70%
  );
}

/* ── Screens ── */
#app {
  width: 100%;
  max-width: 440px;
  padding: 24px;
}

.screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.hidden { display: none !important; }

/* ── Auth screen ── */
.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.logo h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 15px;
}

.setup-hint {
  font-size: 12px;
  color: var(--text-muted);
  max-width: 300px;
  line-height: 1.6;
}

.setup-hint a {
  color: rgba(var(--accent), 1);
  text-decoration: none;
}

/* ── Buttons ── */
button {
  background: rgb(var(--accent));
  color: #000;
  border: none;
  border-radius: 500px;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: transform 80ms, filter 120ms;
}

button:hover { filter: brightness(1.08); }
button:active { transform: scale(0.97); }

#disconnect-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid #333;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
}

#disconnect-btn:hover {
  color: var(--text);
  border-color: #555;
  filter: none;
}

/* ── Player screen ── */
.now-playing-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgb(var(--accent));
}

.track-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* ── Not playing ── */
.not-playing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.not-playing-icon {
  opacity: 0.4;
}

/* ── Playing ── */
#playing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}

.album-art-wrapper {
  position: relative;
  width: 180px;
  height: 180px;
  flex-shrink: 0;
}

#album-art {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* ── Playing bars indicator ── */
.playing-indicator {
  position: absolute;
  bottom: 8px;
  right: 8px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  background: rgba(0, 0, 0, 0.6);
  padding: 4px 6px;
  border-radius: 6px;
  height: 22px;
}

.playing-indicator span {
  display: block;
  width: 3px;
  background: rgb(var(--accent));
  border-radius: 2px;
  animation: bar 1.1s ease-in-out infinite;
}

.playing-indicator span:nth-child(2) { animation-delay: 0.22s; }
.playing-indicator span:nth-child(3) { animation-delay: 0.44s; }

@keyframes bar {
  0%, 100% { height: 4px; }
  50% { height: 14px; }
}

/* ── Track info ── */
.track-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.track-name {
  font-size: 17px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artist-name {
  font-size: 14px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.album-name {
  font-size: 12px;
  color: #666;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Progress ── */
.progress-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.time {
  font-size: 11px;
  color: var(--text-muted);
  min-width: 32px;
  font-variant-numeric: tabular-nums;
}

.time:last-child { text-align: right; }

.progress-bar-bg {
  flex: 1;
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: rgb(var(--accent));
  border-radius: 2px;
  transition: width 1s linear;
  width: 0%;
}

/* ── Error ── */
.error-message {
  color: #ff6b6b;
  font-size: 14px;
  max-width: 300px;
  line-height: 1.6;
}

/* ── Responsive ── */
@media (min-width: 480px) {
  #playing {
    flex-direction: row;
    gap: 24px;
    align-items: flex-start;
  }

  .album-art-wrapper {
    width: 140px;
    height: 140px;
  }

  .track-info {
    padding-top: 4px;
    text-align: left;
  }
}