:root {
  color-scheme: dark;
  --ink: #f0edf3;
  --muted: #9892a2;
  --dim: #66606f;
  --surface: rgba(14, 12, 19, 0.76);
  --surface-strong: rgba(18, 15, 24, 0.94);
  --line: rgba(240, 237, 243, 0.13);
  --line-hot: rgba(207, 177, 255, 0.42);
  --violet: #b89ae7;
  --acid: #b7ce9f;
  --low: 0;
  --mid: 0;
  --high: 0;
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  background: #09070d;
  color: var(--ink);
}

* { box-sizing: border-box; }

html { min-height: 100%; background: #09070d; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 8%, rgba(105, 70, 143, 0.13), transparent 31rem),
    linear-gradient(160deg, #0b0910 0%, #09070d 48%, #07080a 100%);
}

button, input { font: inherit; }
button { color: inherit; }

#visualizer {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: calc(0.26 + var(--mid) * 0.28);
}

.ambient {
  position: fixed;
  z-index: 0;
  width: 42vw;
  height: 42vw;
  border-radius: 50%;
  filter: blur(80px);
  opacity: calc(0.08 + var(--low) * 0.13);
  pointer-events: none;
  transition: opacity 150ms linear;
}

.ambient-a {
  top: -14vw;
  right: -10vw;
  background: rgb(93 57 128 / 58%);
  transform: scale(calc(1 + var(--low) * 0.16));
}

.ambient-b {
  bottom: 5vh;
  left: -17vw;
  background: rgb(83 110 73 / 34%);
  transform: scale(calc(1 + var(--high) * 0.12));
}

.masthead,
main,
.player { position: relative; z-index: 1; }

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem clamp(1.15rem, 4vw, 4.5rem);
  border-bottom: 1px solid var(--line);
  background: rgb(8 7 11 / 52%);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.brand-mark { color: var(--violet); letter-spacing: -0.2em; }
.masthead-copy { margin: 0; color: var(--dim); font-size: 0.67rem; text-transform: uppercase; letter-spacing: 0.14em; }

main {
  width: min(1180px, calc(100% - 2.3rem));
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 8.5rem) 0 11rem;
}

.hero { max-width: 930px; min-height: min(62vh, 650px); }
.eyebrow { margin: 0 0 1rem; color: var(--acid); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.18em; }

h1, h2, p { text-wrap: pretty; }
h1 {
  margin: 0;
  max-width: 900px;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: clamp(3rem, 9vw, 8rem);
  font-weight: 550;
  line-height: 0.88;
  letter-spacing: -0.065em;
}

.lede {
  width: min(630px, 88%);
  margin: 2.5rem 0 0 auto;
  color: var(--muted);
  font-size: clamp(0.87rem, 1.25vw, 1.02rem);
  line-height: 1.7;
}

.signal-line { margin-top: 4rem; height: 1px; background: var(--line); overflow: hidden; }
.signal-line span {
  display: block;
  width: calc(12% + var(--low) * 72%);
  height: 1px;
  background: linear-gradient(90deg, var(--violet), var(--acid));
  box-shadow: 0 0 18px var(--violet);
}

.catalog-section { margin-top: 2rem; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 1rem; }
.section-head h2 { margin: 0; font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: clamp(1.6rem, 3vw, 2.6rem); font-weight: 520; letter-spacing: -0.04em; }
.track-count { margin: 0; color: var(--dim); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.12em; }

.catalog { border-top: 1px solid var(--line); }
.track {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(130px, 0.55fr) minmax(100px, 0.35fr) auto;
  align-items: center;
  gap: 1rem;
  min-height: 86px;
  padding: 1rem 0.75rem;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease;
}

.track:hover, .track:focus-within { background: rgba(255, 255, 255, 0.025); border-color: var(--line-hot); }
.track.active { background: linear-gradient(90deg, rgba(184, 154, 231, 0.085), transparent 72%); border-color: var(--line-hot); }
.track.active::before { content: ""; position: absolute; left: -1px; top: 18%; bottom: 18%; width: 2px; background: var(--violet); box-shadow: 0 0 18px var(--violet); }

.track-main { min-width: 0; }
.track-index { display: inline-block; width: 2.6rem; color: var(--dim); font-size: 0.65rem; }
.track-title { margin: 0; overflow: hidden; color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: clamp(1.05rem, 2vw, 1.55rem); font-weight: 510; letter-spacing: -0.025em; text-overflow: ellipsis; white-space: nowrap; }
.track-sub { margin: 0.3rem 0 0 2.6rem; color: var(--dim); font-size: 0.67rem; }
.track-status { justify-self: start; padding: 0.28rem 0.48rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.12em; }
.track-duration, .track-meta { color: var(--dim); font-size: 0.68rem; white-space: nowrap; }
.track-play { width: 2.3rem; height: 2.3rem; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; }
.track:hover .track-play, .track.active .track-play { border-color: var(--line-hot); background: rgba(184, 154, 231, 0.09); }
.catalog-error { padding: 2rem; border: 1px solid #6f4242; color: #d9a3a3; background: #1e1114; }

.player {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto minmax(240px, 1.4fr) minmax(155px, auto);
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  min-height: 78px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--surface-strong);
  box-shadow: 0 18px 70px rgb(0 0 0 / 55%);
  backdrop-filter: blur(28px) saturate(120%);
}

.player-now { display: flex; align-items: center; min-width: 0; gap: 0.8rem; }
.player-pulse { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--dim); box-shadow: 0 0 0 0 rgba(184, 154, 231, 0); }
.player.playing .player-pulse { background: var(--violet); animation: pulse 1.7s ease-out infinite; }
.player-title-wrap { min-width: 0; }
.player-kicker { margin: 0 0 0.15rem; color: var(--dim); font-size: 0.57rem; text-transform: uppercase; letter-spacing: 0.14em; }
.player-title-wrap h2 { margin: 0; overflow: hidden; font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: 0.98rem; font-weight: 540; text-overflow: ellipsis; white-space: nowrap; }

.player-transport { display: flex; align-items: center; gap: 0.42rem; }
.icon-button, .play-button, .text-button { border: 0; background: transparent; cursor: pointer; }
.icon-button { width: 2rem; height: 2rem; color: var(--muted); }
.play-button { width: 2.8rem; height: 2.8rem; border: 1px solid var(--line-hot); border-radius: 50%; background: rgba(184, 154, 231, 0.11); }
.play-button:hover { background: rgba(184, 154, 231, 0.18); }

.player-progress-wrap { display: grid; grid-template-columns: 2.7rem 1fr 2.7rem; align-items: center; gap: 0.55rem; min-width: 0; }
.time { color: var(--dim); font-size: 0.6rem; font-variant-numeric: tabular-nums; }
.time:last-child { text-align: right; }
.progress, .volume-wrap input { accent-color: var(--violet); }
.progress { width: 100%; min-width: 0; }
.player-side { display: flex; align-items: center; justify-content: flex-end; gap: 1rem; }
.text-button { padding: 0.35rem 0.2rem; color: var(--muted); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.1em; }
.volume-wrap { display: flex; align-items: center; gap: 0.45rem; color: var(--dim); font-size: 0.58rem; text-transform: uppercase; }
.volume-wrap input { width: 64px; }

.player-note {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.7rem);
  width: min(450px, calc(100vw - 2rem));
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(14, 12, 19, 0.97);
  box-shadow: 0 14px 60px rgb(0 0 0 / 48%);
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.65;
}
.player-note p { margin: 0; white-space: pre-wrap; }
.player-meta { margin-bottom: 0.65rem !important; color: var(--acid); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.08em; }

@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(184, 154, 231, 0.42); } 70%, 100% { box-shadow: 0 0 0 9px rgba(184, 154, 231, 0); } }

@media (max-width: 820px) {
  main { padding-bottom: 10rem; }
  .hero { min-height: 50vh; }
  .track { grid-template-columns: minmax(0, 1fr) auto auto; }
  .track-meta { display: none; }
  .player { grid-template-columns: minmax(0, 1fr) auto; gap: 0.65rem 1rem; }
  .player-progress-wrap { grid-column: 1 / -1; grid-row: 2; }
  .player-transport { grid-column: 2; grid-row: 1; }
  .player-side {
    position: absolute;
    top: 1.02rem;
    right: 5.25rem;
    display: flex;
  }
  .volume-wrap { display: none; }
}

@media (max-width: 560px) {
  .masthead-copy { display: none; }
  main { width: min(100% - 1.5rem, 1180px); padding-top: 4rem; }
  h1 { font-size: clamp(2.9rem, 17vw, 5rem); }
  .lede { width: 100%; margin-left: 0; }
  .section-head { align-items: start; flex-direction: column; gap: 0.5rem; }
  .track { grid-template-columns: minmax(0, 1fr) auto; min-height: 78px; padding-inline: 0.3rem; }
  .track-status { display: none; }
  .track-sub { margin-left: 2rem; }
  .track-index { width: 2rem; }
  .player { right: 0.55rem; bottom: 0.55rem; left: 0.55rem; padding: 0.68rem; }
  .player-side { top: 0.9rem; right: 4.15rem; }
  .icon-button { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  #visualizer { opacity: 0.11; }
  .ambient { transform: none !important; }
}