* {
  box-sizing: border-box;
}

:root {
  --bg: #07111f;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.13);
  --text: #f7fbff;
  --muted: #b9c7d8;
  --accent: #f8d74a;
  --accent-2: #4db6ff;
  --danger: #ff6b6b;
  --border: rgba(255, 255, 255, 0.16);
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(77, 182, 255, 0.25), transparent 35%),
    radial-gradient(circle at top right, rgba(248, 215, 74, 0.18), transparent 30%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

button,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.app {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin-bottom: 24px;
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  margin: 0 0 8px;
}

h1 {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.92;
  margin: 0;
}

h2 {
  margin: 0;
}

.subtext,
.muted {
  color: var(--muted);
}

.subtext {
  max-width: 540px;
  font-size: 1.1rem;
}

.auth-card,
.player-card,
.status,
.playlist {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
}

.auth-card {
  width: min(340px, 100%);
  padding: 18px;
}

.primary,
.secondary {
  width: 100%;
  padding: 12px 14px;
  border-radius: 999px;
  font-weight: 700;
}

.primary {
  color: #07111f;
  background: var(--accent);
}

.secondary {
  color: var(--text);
  background: var(--card-strong);
  border: 1px solid var(--border);
}

.divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  margin: 14px 0;
}

.divider span {
  height: 1px;
  background: var(--border);
}

.divider p {
  margin: 0;
  font-size: 0.8rem;
}

.label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

textarea {
  width: 100%;
  min-height: 82px;
  resize: vertical;
  border-radius: 16px;
  border: 1px solid var(--border);
  padding: 10px;
  margin-bottom: 10px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
}

.status {
  padding: 14px 18px;
  margin-bottom: 20px;
  color: var(--muted);
}

.player-card {
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  margin-bottom: 28px;
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.album-art {
  width: 76px;
  height: 76px;
  border-radius: 18px;
  object-fit: cover;
}

.controls {
  display: flex;
  gap: 10px;
}

.round {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--card-strong);
  color: var(--text);
  border: 1px solid var(--border);
}

.round.large {
  width: 56px;
  height: 56px;
  background: var(--accent-2);
  color: #06101c;
  font-weight: 900;
}

.device-row {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.9rem;
  display: flex;
  gap: 8px;
  align-items: center;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--danger);
  display: inline-block;
}

.dot.ready {
  background: #47d16c;
}

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

.section-head .secondary {
  width: auto;
  padding-inline: 18px;
}

.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.playlist {
  padding: 14px;
  text-align: left;
  color: var(--text);
  transition: transform 0.15s ease, background 0.15s ease;
}

.playlist:hover {
  transform: translateY(-3px);
  background: var(--card-strong);
}

.playlist img,
.blank-cover {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 18px;
  object-fit: cover;
  background: rgba(255,255,255,0.08);
  margin-bottom: 12px;
}

.playlist-title {
  font-weight: 800;
  margin: 0 0 4px;
}

.small {
  font-size: 0.88rem;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  .hero,
  .player-card {
    grid-template-columns: 1fr;
  }

  .controls {
    justify-content: center;
  }

  .auth-card {
    min-width: 0;
  }
}