/* ============================================================
   GRAMMY 2027 — Album Entries
   Editorial dark gallery · glassmorphism · ambient gradient
   ============================================================ */

@font-face {
  font-family: "Instrument Serif";
  src: url("assets/fonts/instrument-serif.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("assets/fonts/instrument-serif-italic.woff2") format("woff2");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("assets/fonts/inter.woff2") format("woff2");
  font-weight: 100 900; font-style: normal; font-display: swap;
}

:root {
  --bg: #08080b;
  --ink: #f4f1ea;
  --ink-2: rgba(244, 241, 234, 0.66);
  --ink-3: rgba(244, 241, 234, 0.38);
  --line: rgba(244, 241, 234, 0.14);
  --line-soft: rgba(244, 241, 234, 0.07);
  --glass: rgba(255, 255, 255, 0.055);
  --glass-2: rgba(255, 255, 255, 0.09);

  --c1: #1c1c22;
  --c2: #4a4a55;
  --c3: #b9b3a6;

  --font-sans: "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Instrument Serif", "Songti SC", "Source Han Serif SC", Georgia, serif;
  --ease: cubic-bezier(0.22, 0.72, 0.16, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body.is-locked { overflow: hidden; }

::selection { background: var(--c3); color: #0a0a0c; }

img { display: block; max-width: 100%; }

button {
  font: inherit; color: inherit; background: none; border: 0;
  padding: 0; cursor: pointer; -webkit-tap-highlight-color: transparent;
}

a { color: inherit; text-decoration: none; }

/* ---------------- ambient background ---------------- */

.ambient {
  position: fixed; inset: 0; z-index: 0;
  overflow: hidden; pointer-events: none;
}

.ambient__photo {
  position: absolute; inset: -6%;
  background: #0a0a0c center/cover no-repeat;
  opacity: 0;
  transition: opacity 0.9s var(--ease);
}
.ambient__photo.is-on { opacity: 0.78; }

.blob {
  position: absolute;
  width: 74vmax; height: 74vmax;
  border-radius: 50%;
  background-color: var(--c1);
  opacity: 0.55;
  -webkit-mask-image: radial-gradient(closest-side, #000 0%, rgba(0,0,0,0.9) 38%, rgba(0,0,0,0.35) 64%, transparent 78%);
  mask-image: radial-gradient(closest-side, #000 0%, rgba(0,0,0,0.9) 38%, rgba(0,0,0,0.35) 64%, transparent 78%);
  transition: background-color 1.1s var(--ease), opacity 0.9s var(--ease);
}
.blob--1 { top: -34vmax; left: -20vmax; }
.blob--2 { background-color: var(--c2); top: 2vmax; right: -30vmax; opacity: 0.5; }
.blob--3 { background-color: var(--c3); bottom: -40vmax; left: 10vmax; opacity: 0.32; }

.ambient__grain {
  position: absolute; inset: 0; opacity: 0.22;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.ambient__vignette {
  position: absolute; inset: 0;
  background:
    radial-gradient(130% 100% at 50% 0%, transparent 34%, rgba(6, 6, 9, 0.42) 76%, rgba(6, 6, 9, 0.78) 100%),
    linear-gradient(180deg, rgba(6,6,9,0.42) 0%, rgba(6,6,9,0.06) 24%, rgba(6,6,9,0.2) 70%, rgba(6,6,9,0.62) 100%);
}

/* ---------------- shell ---------------- */

.shell { position: relative; z-index: 1; }

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 24px;
  padding: 16px clamp(20px, 4vw, 56px);
  background: linear-gradient(180deg, rgba(8, 8, 11, 0.5), rgba(8, 8, 11, 0.1));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
}
.topbar.is-compact { background: rgba(8, 8, 11, 0.78); border-bottom-color: rgba(244,241,234,0.1); }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand__mark {
  width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid var(--line);
  display: grid; place-items: center;
  font-size: 9px; letter-spacing: 0.04em; color: var(--ink-2);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__title {
  font-family: var(--font-serif);
  font-size: 17px; letter-spacing: 0.01em;
}
.brand__sub {
  font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-3);
}

.topnav { display: flex; gap: 26px; margin-left: auto; }
.topnav a {
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-3); transition: color 0.3s var(--ease);
}
.topnav a:hover { color: var(--ink); }

.search {
  display: flex; align-items: center; gap: 9px;
  margin-left: auto;
  padding: 8px 14px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), width 0.4s var(--ease);
  width: 220px;
}
.search:focus-within { border-color: rgba(255,255,255,0.28); background: rgba(255,255,255,0.07); width: 280px; }
.search svg { flex-shrink: 0; opacity: 0.5; }
.search input {
  border: 0; outline: 0; background: none; color: var(--ink);
  font: inherit; font-size: 12.5px; width: 100%; letter-spacing: 0.02em;
}
.search input::placeholder { color: var(--ink-3); }
.search kbd {
  font-family: var(--font-sans); font-size: 10px; color: var(--ink-3);
  border: 1px solid var(--line-soft); border-radius: 4px; padding: 1px 5px;
}

/* ---------------- hero ---------------- */

.hero {
  padding: clamp(56px, 9vw, 120px) clamp(20px, 4vw, 56px) clamp(32px, 4vw, 56px);
  max-width: 1560px; margin: 0 auto;
}
.hero__eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-size: 10px; letter-spacing: 0.26em; text-transform: uppercase;
  color: var(--ink-2);
}
.hero__eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--ink-3); }

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.55fr);
  gap: clamp(32px, 5vw, 80px);
  align-items: end;
  margin-top: 26px;
}

.hero h1 {
  margin: 0;
  font-weight: 400;
  font-size: clamp(56px, 8.6vw, 132px);
  line-height: 0.86;
  letter-spacing: -0.035em;
}
.hero h1 .serif { font-family: var(--font-serif); font-style: italic; display: block; }
.hero h1 .cn {
  display: block; font-family: var(--font-sans);
  font-size: clamp(20px, 2.1vw, 30px); font-weight: 300;
  letter-spacing: 0.3em; margin-top: clamp(18px, 2vw, 26px); color: var(--ink-2);
}

.hero__aside { padding-bottom: 8px; }
.hero__lead {
  margin: 0 0 26px; color: var(--ink-2); font-size: 14px; line-height: 1.85;
  font-weight: 300; max-width: 34em;
}
.hero__dates { display: grid; gap: 10px; border-top: 1px solid var(--line-soft); padding-top: 18px; }
.hero__date {
  display: flex; justify-content: space-between; gap: 16px;
  font-size: 11px; letter-spacing: 0.06em; color: var(--ink-3);
}
.hero__date b { font-weight: 400; color: var(--ink-2); letter-spacing: 0.1em; }

.hero__stats {
  display: flex; flex-wrap: wrap; gap: clamp(24px, 4vw, 56px);
  margin-top: clamp(36px, 5vw, 64px);
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
}
.stat__num {
  font-family: var(--font-serif); font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1; letter-spacing: -0.01em;
}
.hero__cta {
  display: inline-flex; align-items: center; gap: 10px;
  margin-left: auto; align-self: center;
  padding: 11px 20px;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 999px;
  font-size: 11px; letter-spacing: 0.1em; color: var(--ink-2);
  background: rgba(255,255,255,0.03);
  transition: all 0.35s var(--ease);
}
.hero__cta em { font-style: normal; color: var(--ink); font-variant-numeric: tabular-nums; }
.hero__cta svg { opacity: 0.6; transition: transform 0.35s var(--ease); }
.hero__cta:hover { background: var(--ink); color: #0b0b0d; border-color: var(--ink); }
.hero__cta:hover em { color: #0b0b0d; }
.hero__cta:hover svg { transform: translateY(2px); }

.stat__lab {
  font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-3); margin-top: 9px;
}

/* ---------------- toolbar ---------------- */

.toolbar {
  position: sticky; top: var(--topbar-h, 59px); z-index: 30;
  padding: 12px clamp(20px, 4vw, 56px);
  background: rgba(9, 9, 12, 0.42);
  backdrop-filter: blur(22px) saturate(1.25);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.toolbar__inner {
  max-width: 1560px; margin: 0 auto;
  display: flex; align-items: center; gap: 18px;
}
.chips {
  display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; padding: 2px 0;
  flex: 1 1 auto; min-width: 0;
  -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 40px), transparent 100%);
  mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 40px), transparent 100%);
}
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 12px; letter-spacing: 0.02em; color: var(--ink-2);
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.chip:hover { color: var(--ink); background: rgba(255,255,255,0.05); }
.chip.is-active {
  color: #0b0b0d; background: var(--ink);
  border-color: var(--ink);
}
.chip span { opacity: 0.5; margin-left: 6px; font-size: 10px; }

.toolbar__count {
  margin-left: auto; flex-shrink: 0; white-space: nowrap;
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
  font-variant-numeric: tabular-nums; opacity: .8;
}

/* ---------------- grid ---------------- */

.grid-wrap { max-width: 1560px; margin: 0 auto; padding: clamp(32px, 4vw, 56px) clamp(20px, 4vw, 56px) 120px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(196px, 1fr));
  gap: clamp(28px, 3.4vw, 46px) clamp(16px, 2vw, 26px);
}

.card {
  position: relative;
  display: block; text-align: left;
  contain: layout style;
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.card.is-in { opacity: 1; transform: none; }

.card__art {
  position: relative;
  aspect-ratio: 1;
  border-radius: 4px;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.08) inset,
    0 18px 34px -18px rgba(0,0,0,0.9);
  transition: transform 0.55s var(--ease), box-shadow 0.55s var(--ease);
  isolation: isolate;
}
.card__art::after {
  content: "";
  position: absolute; inset: 0;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px;
  pointer-events: none;
  transition: border-color 0.4s var(--ease);
}
.card__art img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.9s var(--ease), filter 0.5s var(--ease);
}

.card:hover .card__art {
  transform: translateY(-6px);
  box-shadow: 0 26px 50px -22px rgba(0,0,0,.95), 0 20px 60px -26px var(--card-c3), 0 1px 0 rgba(255,255,255,.16) inset;
}
.card:hover .card__art img { transform: scale(1.045); }
.card:hover .card__art::after { border-color: rgba(255,255,255,0.3); }
.card:hover 
.card__idx {
  position: absolute; top: 10px; left: 12px;
  font-size: 9.5px; letter-spacing: 0.14em;
  color: rgba(255,255,255,0.9);
  text-shadow: 0 1px 6px rgba(0,0,0,0.55);
  opacity: 0; transform: translateY(-4px);
  transition: all 0.4s var(--ease);
  font-variant-numeric: tabular-nums;
}
.card:hover .card__idx { opacity: 1; transform: none; }

.card__play {
  position: absolute; right: 10px; bottom: 10px;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(10,10,12,0.55);
  border: 1px solid rgba(255,255,255,0.22);
  opacity: 0; transform: translateY(6px) scale(0.92);
  transition: all 0.4s var(--ease);
}
.card:hover .card__play { opacity: 1; transform: none; }
.card__play:hover { background: var(--ink); color: #0a0a0c; }

.card__meta { padding: 13px 2px 0; }
.card__title {
  font-size: 13.5px; font-weight: 500; line-height: 1.35;
  letter-spacing: 0.005em;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.card__artist {
  margin-top: 4px; font-size: 12px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.card__sub {
  margin-top: 8px; display: flex; gap: 8px; align-items: center;
  font-size: 9.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.card__sub i { width: 3px; height: 3px; border-radius: 50%; background: currentColor; display: inline-block; }

.empty {
  padding: 80px 0; text-align: center; color: var(--ink-3);
  font-size: 13px; letter-spacing: 0.06em;
}
.empty b { display: block; font-family: var(--font-serif); font-style: italic; font-size: 30px; color: var(--ink-2); margin-bottom: 10px; font-weight: 400; }

/* ---------------- footer ---------------- */

.footer {
  border-top: 1px solid var(--line-soft);
  padding: 40px clamp(20px, 4vw, 56px) 56px;
  max-width: 1560px; margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 20px 40px;
  font-size: 11px; color: rgba(244,241,234,0.46); line-height: 1.9;
}
.footer__brand { font-family: var(--font-serif); font-size: 15px; color: var(--ink-2); }
.footer p { margin: 0; max-width: 62ch; }
.footer__right { margin-left: auto; text-align: right; }

/* ============================================================
   DETAIL OVERLAY
   ============================================================ */

.detail {
  position: fixed; inset: 0; z-index: 100;
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}
.detail.is-open { opacity: 1; visibility: visible; }
.detail:focus { outline: none; }
.detail__close:focus { outline: none; }
.detail__close:focus-visible { outline: 2px solid rgba(255,255,255,0.55); outline-offset: 3px; }

.detail {
  background: linear-gradient(158deg, var(--c1) 0%, #08080b 58%, #08080b 100%);
}
.detail__bg {
  position: absolute; inset: -8%;
  background: #0a0a0c center/cover no-repeat;
  opacity: 0.82;
  transition: opacity 0.7s var(--ease);
}
.detail__bg.is-hidden { opacity: 0; }

.detail__wash {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(58% 72% at 12% 18%, var(--c2) 0%, transparent 62%),
    radial-gradient(52% 58% at 88% 78%, var(--c3) 0%, transparent 60%),
    radial-gradient(70% 60% at 60% 110%, var(--c1) 0%, transparent 65%),
    linear-gradient(140deg, rgba(8,8,11,0.3) 0%, rgba(8,8,11,0.05) 45%, rgba(8,8,11,0.6) 100%);
  opacity: 0.62;
}

.detail__scrim {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(6,6,9,0.55) 0%, transparent 22%, transparent 72%, rgba(6,6,9,0.72) 100%),
    radial-gradient(100% 85% at 50% 45%, transparent 20%, rgba(5,5,7,0.6) 100%);
}

.detail__close {
  position: absolute; top: clamp(16px, 2.4vw, 30px); right: clamp(16px, 2.4vw, 30px);
  z-index: 5;
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  transition: all 0.35s var(--ease);
}
.detail__close:hover { background: var(--ink); color: #0a0a0c; transform: rotate(90deg); }

.detail__scroll {
  position: relative; z-index: 2;
  flex: 1; overflow-y: auto; overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: clamp(56px, 7vw, 84px) clamp(20px, 4vw, 56px) 0;
  scrollbar-width: thin;
}

.detail__inner {
  max-width: 1280px; margin: 0 auto; padding-bottom: clamp(110px, 16vh, 150px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 5vw, 76px);
  align-items: start;
  opacity: 0;
  transition: opacity 0.55s var(--ease) 0.04s;
}
.detail.is-open .detail__inner { opacity: 1; }

/* cover column */
.detail__artcol { position: sticky; top: 0; }

.detail__artframe {
  position: relative;
  background: #101014 center/cover no-repeat;
  border-radius: 3px;
  box-shadow: 0 50px 90px -30px rgba(0,0,0,0.95), 0 0 0 1px rgba(255,255,255,0.12);
}
.detail__artframe::before {
  content: "";
  position: absolute; inset: -8% -14% -18%;
  background: radial-gradient(60% 60% at 50% 55%, var(--c3) 0%, transparent 72%);
  opacity: 0.35; filter: blur(46px); z-index: -1;
}
.detail__artframe img {
  width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 3px;
  opacity: 0; transition: opacity 0.35s var(--ease);
  animation: coverIn 1s var(--ease) both;
}
@keyframes coverIn {
  from { transform: scale(1.04); opacity: 0; }
  to { transform: none; opacity: 1; }
}

.detail__caption {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 16px; font-size: 9.5px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-3);
}

.detail__folio {
  display: flex; align-items: baseline; gap: 14px;
  margin-top: clamp(28px, 4vw, 52px);
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.detail__folio-num {
  font-family: var(--font-serif); font-size: 34px; line-height: 1;
  color: rgba(244,241,234,0.55); font-variant-numeric: tabular-nums;
}
.detail__folio-txt {
  font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-3); line-height: 1.8;
}
.detail__folio-txt em { display: block; font-style: normal; letter-spacing: 0.12em; color: rgba(244,241,234,.28); }

/* panel */
.detail__panel { padding-top: 6px; }

.detail__eyebrow {
  display: flex; align-items: center; gap: 10px;
  font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--ink-2);
  margin-bottom: 18px;
}
.detail__eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--c3); }

.detail__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(34px, 4.2vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.detail__title.is-long { font-size: clamp(28px, 3.2vw, 46px); line-height: 1.06; }

.detail__artist {
  margin: 16px 0 0;
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 300; letter-spacing: 0.02em;
  color: var(--ink);
}
.detail__artist span { color: var(--ink-3); margin: 0 8px; }

.detail__meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px 16px;
  margin: 30px 0 0;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.detail__meta dt {
  font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--ink-3); margin-bottom: 7px;
}
.detail__meta dd {
  margin: 0; font-size: 12.5px; line-height: 1.45; color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.detail__label {
  margin-top: 13px; font-size: 10px; letter-spacing: 0.08em; color: var(--ink-3);
  display: flex; gap: 8px; align-items: baseline;
}
.detail__label span { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.detail__label b { font-weight: 400; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(244,241,234,.28); }
.detail__cats { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.detail__cat {
  font-size: 10.5px; letter-spacing: 0.06em;
  padding: 5px 11px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--ink-2);
  background: rgba(255,255,255,0.04);
}

.detail__note {
  margin: 22px 0 0;
  font-size: 13.5px; line-height: 1.95; font-weight: 300;
  color: var(--ink-2);
  max-width: 46em;
}

/* tracklist */
.tracks-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: 34px 0 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.tracks-head h3 {
  margin: 0; font-size: 10px; letter-spacing: 0.24em; text-transform: uppercase;
  font-weight: 500; color: var(--ink-2);
}
.tracks-head span { font-size: 10px; letter-spacing: 0.12em; color: var(--ink-3); }

.tracks {
  list-style: none; margin: 0; padding: 0;

}

.track {
  display: grid;
  grid-template-columns: 28px 1fr auto 34px;
  align-items: center;
  gap: 12px;
  padding: 10px 10px 10px 4px;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.25s var(--ease);
}
.track + .track { border-top: 1px solid rgba(255,255,255,0.055); }
.track:hover { background: rgba(255,255,255,0.05); }
.track.is-playing { background: rgba(255,255,255,0.08); }
.track.is-unavailable { opacity: 0.45; }
.track.is-unavailable .track__dur::after { content: " · 不可用"; font-size: 8px; letter-spacing: .04em; }
.track.is-empty { display: block; padding: 22px 4px; color: var(--ink-3); font-size: 12px; cursor: default; }
.track.is-playing .track__title { color: #fff; }

.track__idx { display: grid; place-items: center; }
.track__num {
  font-size: 10px; color: var(--ink-3);
  font-variant-numeric: tabular-nums; text-align: center;
}
.track.is-playing .track__idx { display: grid; place-items: center; }
.track__num { display: none; }
.track__eq { display: none; gap: 2px; align-items: flex-end; height: 12px; justify-content: center; }
.track.is-playing .track__eq { display: flex; }
.track.is-playing.is-paused .track__eq { display: none; }
.track.is-playing.is-paused .track__idx { display: grid; place-items: center; }
.track__num { display: block; }
.track__eq i {
  width: 2px; background: var(--c3); border-radius: 1px;
  animation: eq 0.9s ease-in-out infinite;
}
.track__eq i:nth-child(1) { height: 40%; animation-delay: -0.2s; }
.track__eq i:nth-child(2) { height: 90%; animation-delay: -0.5s; }
.track__eq i:nth-child(3) { height: 60%; animation-delay: -0.1s; }
@keyframes eq { 0%,100% { transform: scaleY(0.4); } 50% { transform: scaleY(1); } }

.track__title {
  font-size: 13px; font-weight: 400; line-height: 1.4;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  color: var(--ink-2);
  transition: color 0.25s var(--ease);
}
.track:hover .track__title { color: var(--ink); }
.track__dur {
  font-size: 10.5px; color: var(--ink-3); font-variant-numeric: tabular-nums;
}
.track__btn {
  width: 28px; height: 28px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid transparent; color: var(--ink-3);
  opacity: 0; transition: all 0.3s var(--ease);
}
.track:hover .track__btn, .track.is-playing .track__btn { opacity: 1; }
.track__btn:hover { border-color: rgba(255,255,255,0.25); color: var(--ink); }

/* player */
.player {
  position: sticky; bottom: 0;
  margin-top: 26px;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) auto;
  align-items: center; gap: 16px;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(12, 12, 16, 0.93);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.9);
}

.player__btn {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ink); color: #0b0b0d;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.player__btn:hover { transform: scale(1.06); }
.player__btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none; }

.player__info { min-width: 0; }
.player__title {
  font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  color: var(--ink);
}
.player__sub {
  font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3);
  margin-top: 3px;
}

.player__bar {
  position: relative;
  margin-top: 6px;
  height: 26px;
  display: flex; align-items: center;
  cursor: pointer;
  touch-action: none;
  -webkit-user-select: none; user-select: none;
  outline: none;
}
.player__bar:focus-visible .player__rail { box-shadow: 0 0 0 2px rgba(255,255,255,0.35); }
.player__rail {
  position: relative; width: 100%; height: 3px; border-radius: 3px;
  background: rgba(255,255,255,0.18);
  transition: height 0.2s var(--ease), background 0.2s var(--ease);
}
.player__fill {
  position: absolute; left: 0; top: 0; bottom: 0; width: 0%;
  background: var(--c3); border-radius: 3px;
}
.player__dot {
  position: absolute; top: 50%; left: 0%;
  width: 9px; height: 9px; border-radius: 50%;
  background: #fff;
  transform: translate(-50%, -50%) scale(0);
  transition: transform 0.2s var(--ease);
  box-shadow: 0 0 0 4px rgba(255,255,255,0.12);
}
.player:hover .player__dot,
.player__bar:focus-visible .player__dot,
.player.is-scrubbing .player__dot { transform: translate(-50%, -50%) scale(1); }
.player.is-scrubbing .player__rail { height: 5px; background: rgba(255,255,255,0.28); }
.player.is-scrubbing .player__dot { transform: translate(-50%, -50%) scale(1.25); }

.player__tip {
  position: absolute; bottom: 26px; left: 0;
  transform: translate(-50%, 6px);
  padding: 5px 9px;
  border-radius: 7px;
  background: #0c0c10;
  border: 1px solid rgba(255,255,255,0.2);
  box-shadow: 0 8px 22px rgba(0,0,0,0.55);
  font-size: 10.5px; letter-spacing: 0.04em; color: var(--ink);
  font-variant-numeric: tabular-nums;
  opacity: 0; pointer-events: none;
  transition: opacity 0.16s var(--ease), transform 0.16s var(--ease);
  white-space: nowrap;
  z-index: 3;
}
.player__tip::after {
  content: ""; position: absolute; left: 50%; bottom: -4px;
  width: 6px; height: 6px; margin-left: -3px;
  background: #0c0c10;
  border-right: 1px solid rgba(255,255,255,0.2);
  border-bottom: 1px solid rgba(255,255,255,0.2);
  transform: rotate(45deg);
}
.player__bar.is-scrubbing .player__tip { opacity: 1; transform: translate(-50%, 0); }

.player__time {
  display: flex; justify-content: space-between; margin-top: 2px;
  font-size: 9px; color: var(--ink-3); font-variant-numeric: tabular-nums;
}

.player__nav { display: flex; gap: 4px; }
.player__nav button {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; color: var(--ink-3);
  transition: all 0.25s var(--ease);
}
.player__nav button:hover { color: var(--ink); background: rgba(255,255,255,0.08); }

.playhint {
  margin: 22px 0 0;
  font-size: 9.5px; letter-spacing: 0.12em; color: rgba(244,241,234,0.26);
}

/* detail side nav */
.detail__side {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 4;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(12,12,16,0.4);
  color: var(--ink-2);
  transition: all 0.3s var(--ease);
}
.detail__side:hover { background: rgba(255,255,255,0.14); color: var(--ink); }
.detail__side--prev { left: clamp(10px, 2vw, 26px); }
.detail__side--next { right: clamp(10px, 2vw, 26px); }

/* ---------------- responsive ---------------- */

@media (min-width: 1700px) {
  .detail__inner { max-width: 1420px; }
  .detail__title { font-size: clamp(46px, 3.4vw, 72px); }
  .detail__title.is-long { font-size: clamp(34px, 2.6vw, 54px); }
}

@media (max-width: 1180px) {
  .detail__inner { grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 40px; }
  .detail__meta { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .topbar, .toolbar, .player { backdrop-filter: none; -webkit-backdrop-filter: none; }
  .topbar { background: linear-gradient(180deg, rgba(8,8,11,0.86) 0%, rgba(8,8,11,0.42) 70%, rgba(8,8,11,0.1) 100%); }
  .toolbar { background: rgba(9, 9, 12, 0.9); }
  .player { background: rgba(12, 12, 16, 0.96); }
  .hero__grid { grid-template-columns: 1fr; gap: 34px; align-items: start; }
  .hero__aside { max-width: 560px; }
  .topnav { display: none; }
  .toolbar { top: 58px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 26px 14px; }
  .detail__scroll { padding-top: 70px; }
  .detail__inner { grid-template-columns: 1fr; gap: 34px; }
  .detail__artcol { position: static; width: min(74vw, 340px); }
  .detail__side { display: none; }
  .detail__title { font-size: clamp(32px, 8vw, 44px); }
  .detail__note { font-size: 13px; }
  .player { grid-template-columns: 44px minmax(0, 1fr); }
  .player__bar { height: 34px; }
  .player__nav { display: none; }
}

@media (max-width: 600px) {
  .topbar { position: relative; }
  .toolbar { top: 0; }
  .toolbar__count { display: none; }
  .detail__artcol { width: 56vw; }
  .hero__cta { margin: 4px 0 0; width: 100%; justify-content: center; }
  .detail__folio, .playhint { display: none; }
  .detail__scroll { padding-top: 64px; }
  .detail__inner { gap: 26px; padding-bottom: 130px; }
  .detail__note { margin-top: 18px; }
  .player { border-radius: 12px; }

  .search { width: 100%; }
  .search kbd { display: none; }
  .topbar { flex-wrap: wrap; gap: 12px; }
  .brand { order: 1; }
  .search { order: 3; width: 100%; margin-left: 0; }
  .hero { padding-top: 44px; }
  .hero h1 { font-size: clamp(44px, 13vw, 64px); }
  .hero__stats { gap: 22px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 12px; }
  .card__title { font-size: 12.5px; }
  .detail__artcol { width: 78vw; }
  .detail__meta { gap: 14px; }
  .track { grid-template-columns: 22px 1fr auto; }
  .track__btn { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
}