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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #121212;
  color: #fff;
  overflow-x: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  padding: 20px 30px;
  background: #000;
  border-bottom: 1px solid #282828;
}

header h1 {
  font-size: 24px;
  font-weight: 700;
}

main {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.track-card {
  display: flex;
  align-items: center;
  padding: 12px;
  margin-bottom: 12px;
  background: #181818;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}

.track-card:hover {
  background: #282828;
}

.track-card img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 4px;
  margin-right: 16px;
}

.track-info {
  flex: 1;
}

.track-info h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.track-info p {
  font-size: 14px;
  color: #b3b3b3;
}

.player {
  position: sticky;
  bottom: 0;
  display: flex;
  align-items: center;
  padding: 16px 20px;
  background: #181818;
  border-top: 1px solid #282828;
  gap: 20px;
}

.player-controls button {
  background: none;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}

.now-playing img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}

.now-playing div > div {
  font-size: 14px;
}

.now-playing #currentTitle {
  font-weight: bold;
}

.now-playing #currentArtist {
  color: #b3b3b3;
}