:root {
  color-scheme: dark;
  --bg: #06131d;
  --panel: rgba(10, 28, 40, 0.88);
  --panel-strong: rgba(14, 38, 54, 0.96);
  --surface: rgba(255, 255, 255, 0.07);
  --surface-strong: rgba(255, 255, 255, 0.12);
  --text: #f4f7f1;
  --muted: #9cb0bb;
  --accent: #f4b860;
  --accent-strong: #ff7b54;
  --outline: rgba(255, 255, 255, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(244, 184, 96, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(29, 129, 174, 0.24), transparent 30%),
    linear-gradient(180deg, #0a1b26 0%, #06131d 100%);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
}

body {
  display: flex;
  flex-direction: column;
}

button,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  padding: 24px;
  padding-top: 16px;
}

.sidebar,
.panel,
.hero-card,
.player-bar {
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
}

.sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--outline);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(6, 19, 29, 0.92), rgba(10, 28, 40, 0.84));
  position: sticky;
  top: 24px;
  height: calc(100vh - 168px);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.sidebar h1,
.topbar h2,
.hero-card h3,
.panel-heading h3,
.now-playing h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1;
}

.now-playing {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.now-playing-art {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}

.now-playing-text {
  min-width: 0;
}

.sidebar h1 {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
}

.lede,
.sidebar-meta,
#hero-copy,
.album-artist,
#now-playing-meta {
  color: var(--muted);
}

.sidebar-nav {
  display: grid;
  gap: 12px;
}

.nav-item,
.secondary-button,
.icon-button {
  border: 1px solid var(--outline);
  background: var(--surface);
  color: var(--text);
}

.nav-item,
.secondary-button,
.primary-button,
.icon-button {
  border-radius: 999px;
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.nav-item:hover,
.secondary-button:hover,
.primary-button:hover,
.icon-button:hover {
  transform: translateY(-1px);
}

.nav-item:disabled,
.secondary-button:disabled,
.primary-button:disabled,
.icon-button:disabled {
  opacity: 0.55;
  cursor: wait;
  transform: none;
}

.nav-item.is-active,
.primary-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #1d1307;
  border: none;
  font-weight: 700;
}

.sidebar-card,
.panel,
.hero-card {
  border: 1px solid var(--outline);
  border-radius: 28px;
  background: var(--panel);
}

.sidebar-card {
  padding: 18px;
}

.sidebar-label {
  margin: 0 0 8px;
  font-weight: 700;
}

#music-root {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.1rem;
}

.main-panel {
  display: grid;
  gap: 24px;
}

.topbar,
.content-grid {
  display: grid;
  gap: 24px;
}

.topbar {
  grid-template-columns: 1fr minmax(240px, 340px);
  align-items: end;
}

.search-field {
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.search-field input,
#seek-bar {
  width: 100%;
}

.search-field input {
  padding: 0.95rem 1rem;
  border: 1px solid var(--outline);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.hero-card {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  padding: 28px;
  overflow: hidden;
  position: relative;
}

.hero-card::after {
  content: "";
  position: absolute;
  inset: auto -40px -40px auto;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 123, 84, 0.35), transparent 65%);
}

.hero-card h3 {
  font-size: clamp(2rem, 4vw, 4rem);
  margin-bottom: 12px;
}

.hero-stat-grid,
.content-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-stat-grid {
  display: grid;
  gap: 16px;
  align-self: end;
}

.hero-stat-grid article {
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.hero-stat-grid span {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 2rem;
  font-weight: 700;
}

.content-grid {
  display: grid;
}

.panel {
  padding: 24px;
}

.panel:first-child {
  grid-column: span 1;
}

.panel:last-child {
  grid-column: span 2;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.album-grid {
  display: grid;
  gap: 16px;
}

.album-card {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 14px;
  padding: 14px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.06);
}

.album-art {
  width: 84px;
  height: 84px;
  display: block;
  object-fit: cover;
  border-radius: 18px;
  background:
    linear-gradient(140deg, rgba(244, 184, 96, 0.85), rgba(255, 123, 84, 0.9)),
    linear-gradient(220deg, rgba(29, 129, 174, 0.65), transparent);
}

.album-card h4 {
  margin: 0 0 6px;
}

.track-table-wrap {
  overflow: auto;
}

.track-table {
  width: 100%;
  border-collapse: collapse;
}

.track-table th,
.track-table td {
  padding: 14px 10px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.track-row {
  cursor: pointer;
}

.track-row:hover,
.track-row.is-active {
  background: rgba(255, 255, 255, 0.08);
}

.player-bar {
  position: sticky;
  top: 16px;
  margin: 20px 24px 0;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto minmax(260px, 1fr);
  gap: 20px;
  align-items: center;
  padding: 18px 22px;
  border: 1px solid var(--outline);
  border-radius: 24px;
  background: var(--panel-strong);
}

.player-controls,
.player-progress {
  display: flex;
  align-items: center;
  gap: 12px;
}

#current-time,
#duration {
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", "Consolas", "Liberation Mono", monospace;
  font-size: 0.85rem;
  min-width: 3.2ch;
  text-align: center;
}

.icon-button {
  width: 48px;
  height: 48px;
  display: inline-grid;
  place-items: center;
  padding: 0;
}

#seek-bar {
  accent-color: var(--accent);
}

.empty-state {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
}

@media (max-width: 1080px) {
  .app-shell,
  .content-grid,
  .hero-card,
  .topbar,
  .player-bar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .panel:last-child {
    grid-column: span 1;
  }

  .player-bar {
    top: 12px;
    margin: 16px 16px 0;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 16px;
    padding-top: 12px;
  }

  .sidebar,
  .panel,
  .hero-card,
  .player-bar {
    border-radius: 22px;
  }

  .track-table th:nth-child(4),
  .track-table td:nth-child(4) {
    display: none;
  }

  .player-controls,
  .player-progress {
    justify-content: space-between;
  }
}