/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0e0e0e;
  --surface:   #1a1a1a;
  --surface2:  #242424;
  --border:    #2e2e2e;
  --accent:    #d24864;
  --accent-dim:#a8394f;
  --text:      #f0f0f0;
  --muted:     #888;
  --player-h:  110px;
  --font-main: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ── Page Layout ── */
.page {
  padding-bottom: calc(var(--player-h) + 24px);
  min-height: 100vh;
}

.site-header {
  display: flex;
  align-items: center;
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.logo {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--accent);
  text-transform: uppercase;
}

/* ── Track List ── */
.track-list {
  padding: 16px 0;
}

.track-row {
  display: grid;
  grid-template-columns: 56px 56px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 32px;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: background 0.15s;
}

.track-row:hover {
  background: var(--surface);
}

.track-row.active {
  background: var(--surface2);
  border-left: 3px solid var(--accent);
  padding-left: 29px;
}

.track-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  min-width: 28px;
}

.track-row.active .track-num {
  color: var(--accent);
}

.track-thumb {
  width: 48px;
  height: 48px;
  border-radius: 4px;
  object-fit: cover;
  background: var(--surface2);
  flex-shrink: 0;
}

.track-thumb.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--muted);
  background: var(--surface2);
}

.track-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.track-title {
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.track-row.active .track-title {
  color: var(--accent);
}

.track-artist {
  font-size: 12px;
  color: var(--muted);
}

.track-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.track-duration {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.track-genre {
  font-size: 10px;
  color: var(--muted);
  background: var(--surface2);
  padding: 2px 6px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Player Bar ── */
.player-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--player-h);
  background: #161616;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 100px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 0 24px 0 0;
  z-index: 100;
}

.player-cover {
  height: var(--player-h);
  width: 100px;
  flex-shrink: 0;
}

.player-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.player-center {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  padding: 12px 0;
}

.player-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.player-title {
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-artist {
  font-size: 11px;
  color: var(--muted);
}

/* ── Waveform ── */
.waveform-wrap {
  width: 100%;
}

#waveform {
  width: 100%;
  cursor: pointer;
}

.time-row {
  display: flex;
  justify-content: space-between;
}

.time-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
}

/* ── Controls ── */
.player-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.ctrl-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
  line-height: 1;
}

.ctrl-btn:hover {
  color: var(--accent);
  background: var(--surface2);
}

.play-btn {
  width: 40px;
  height: 40px;
  border-radius: 50% !important;
  background: var(--accent) !important;
  color: #fff !important;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-btn:hover {
  background: var(--accent-dim) !important;
  color: #fff !important;
}

.volume-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.vol-icon {
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
}

#volumeSlider {
  -webkit-appearance: none;
  width: 80px;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

#volumeSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* ── Loading State ── */
.loading-msg {
  text-align: center;
  color: var(--muted);
  padding: 60px 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .track-row {
    grid-template-columns: 36px 44px 1fr auto;
    padding: 10px 16px;
    gap: 10px;
  }
  .track-row.active { padding-left: 13px; }
  .track-genre { display: none; }
  .player-bar {
    grid-template-columns: 72px 1fr auto;
    padding-right: 12px;
  }
  .player-cover { width: 72px; }
  #volumeSlider { width: 60px; }
  .site-header { padding: 16px; }
}