:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --ink: #1d1b19;
  --ink-soft: #6e6862;
  --line: #e8e3dc;
  --wave: #d6d0c7;
  --accent: #1f3a68;
  --radius: 14px;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Libre Baskerville", Baskerville, Georgia, serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button { font: inherit; color: inherit; }

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header ---------------------------------------------------------------- */

.site-header {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 16px 28px;
}

.eyebrow {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: lowercase;
  color: var(--ink-soft);
}

h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.8rem, 5.5vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-transform: lowercase;
  color: var(--accent);
}

/* Tabs ------------------------------------------------------------------ */

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.tab {
  position: relative;
  padding: 12px 16px;
  border: 0;
  background: none;
  cursor: pointer;
  font-weight: 500;
  color: var(--ink-soft);
}

.tab:hover { color: var(--ink); }

.tab[aria-selected="true"] { color: var(--ink); }

.tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.tab-count {
  margin-left: 6px;
  font-size: 0.75rem;
  color: var(--ink-soft);
}

.tab:focus-visible,
.play-btn:focus-visible,
.wave:focus-visible,
.now-playing button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 8px;
}

/* Panel & songs --------------------------------------------------------- */

.panel { padding-bottom: 120px; }

.panel-subtitle {
  margin: 0 0 16px;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.loading,
.empty {
  padding: 48px 16px;
  text-align: center;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

.song-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.song {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  align-items: center;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.song.is-current {
  border-color: var(--accent);
  box-shadow: 0 4px 18px rgba(31, 58, 104, 0.12);
}

.play-btn {
  grid-row: span 2;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
}

.play-btn:hover { background: var(--accent); }
.play-btn:active { transform: scale(0.95); }
.song.is-current .play-btn { background: var(--accent); }

.song-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  min-width: 0;
}

.song-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song-meta {
  flex-shrink: 0;
  font-size: 0.8rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.song-note {
  grid-column: 2;
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.wave {
  display: block;
  width: 100%;
  height: 40px;
  cursor: pointer;
  touch-action: none;
}

/* Icons ----------------------------------------------------------------- */

.icon { width: 20px; height: 20px; fill: currentColor; }
.icon-pause { display: none; }
.is-playing .icon-play { display: none; }
.is-playing .icon-pause { display: block; }

/* Now playing bar ------------------------------------------------------- */

.now-playing {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  width: min(728px, calc(100% - 32px));
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px 10px 10px;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(31, 58, 104, 0.3);
}

.now-playing[hidden] { display: none; }

.now-playing button {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.np-toggle { background: #fff !important; color: var(--accent); }
.np-next:hover { background: rgba(255, 255, 255, 0.12) !important; }

.np-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.np-title {
  font-weight: 600;
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.np-meta { font-size: 0.75rem; opacity: 0.65; }

.np-time {
  font-size: 0.8rem;
  opacity: 0.8;
  font-variant-numeric: tabular-nums;
}

/* Footer ---------------------------------------------------------------- */

.site-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px 100px;
  font-size: 0.8rem;
  color: var(--ink-soft);
}

@media (max-width: 480px) {
  .site-header { padding-top: 40px; }
  .song { padding: 14px 12px; gap: 4px 12px; }
  .song-head { flex-direction: column; gap: 0; }
  .song-title { white-space: normal; }
}