:root {
  --deep: #062a48;
  --blue: #0c5b83;
  --aqua: #72bdc7;
  --light-aqua: #89cbd2;
  --ink: #eaf9f7;
  --pale: #d8f2f0;
  --paper: #eaf9f7;
  --navy-text: #073d63;
  --line: rgba(137, 203, 210, .32);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--deep); }

body {
  margin: 0;
  background: var(--deep);
  color: var(--ink);
  font-family: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-weight: 300;
}

button, a { font: inherit; }

a { color: inherit; }

.discography-header {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 72px;
  padding: max(14px, env(safe-area-inset-top)) 22px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--deep);
}

.discography-brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--ink);
  font-family: Georgia, "Noto Serif TC", serif;
  font-size: 16px;
  letter-spacing: .08em;
  text-decoration: none;
}

.discography-brand img { width: 30px; height: 30px; }

.discography-brand small {
  display: block;
  margin-top: 2px;
  color: var(--aqua);
  font-family: Nunito, "Noto Sans TC", sans-serif;
  font-size: 9px;
  font-weight: 300;
  letter-spacing: .15em;
}

.discography-header-meta { text-align: right; }

.discography-header-meta > span {
  display: block;
  color: var(--light-aqua);
  font-family: Nunito, "Noto Sans TC", sans-serif;
  font-size: 9px;
  letter-spacing: .08em;
}

.section-label {
  margin: 0 0 10px;
  color: var(--light-aqua);
  font-family: Nunito, "Noto Sans TC", sans-serif;
  font-size: 10px;
  letter-spacing: .18em;
}

.selected-album { padding: 30px 23px 58px; }

.selected-album-content { min-height: 360px; }

.selected-visual { position: relative; }

.selected-art,
.album-card-art {
  display: block;
  overflow: hidden;
  aspect-ratio: 1;
  background: linear-gradient(145deg, #0c5b83, #062a48 55%, #89cbd2);
}

.selected-art { width: min(84vw, 410px); margin: 0 auto; }

.selected-art img,
.album-card-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.album-art-placeholder {
  position: relative;
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 10%;
  background:
    radial-gradient(circle at 85% 20%, rgba(216, 242, 240, .35) 0 8%, transparent 8.5%),
    linear-gradient(145deg, var(--placeholder-one, #0c5b83), var(--placeholder-two, #062a48) 68%, #72bdc7);
  color: var(--ink);
}

.album-art-placeholder::after {
  content: "";
  position: absolute;
  right: -38%;
  bottom: -45%;
  width: 92%;
  height: 92%;
  border: 1px solid rgba(234, 249, 247, .3);
  border-radius: 50%;
}

.album-art-placeholder span {
  position: relative;
  z-index: 1;
  max-width: 7ch;
  font-family: Georgia, "Noto Serif TC", serif;
  font-size: clamp(18px, 6vw, 36px);
  letter-spacing: .08em;
  line-height: 1.18;
}

.album-art-placeholder small {
  position: relative;
  z-index: 1;
  align-self: flex-end;
  font-size: 8px;
  letter-spacing: .15em;
}

.selected-copy { padding-top: 29px; }

.selected-year {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 9px;
  color: var(--aqua);
  font-family: Nunito, sans-serif;
  font-size: 12px;
  letter-spacing: .16em;
}

.selected-year::after { content: ""; width: 45px; height: 1px; background: var(--aqua); }

.selected-copy h2 {
  max-width: 12ch;
  margin: 0;
  font-family: Georgia, "Noto Serif TC", serif;
  font-size: clamp(38px, 11vw, 66px);
  font-weight: 400;
  letter-spacing: .07em;
  line-height: 1.14;
}

.selected-subtitle { margin: 9px 0 0; color: var(--light-aqua); font-size: 12px; letter-spacing: .08em; }

.selected-description { max-width: 43ch; margin: 20px 0 0; color: var(--pale); font-size: 13px; line-height: 1.85; }

.album-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 27px 0 0;
  border-top: 1px solid var(--line);
}

.album-fact { padding: 14px 10px 13px 0; border-bottom: 1px solid var(--line); }

.album-fact dt { color: var(--light-aqua); font-size: 9px; letter-spacing: .12em; }

.album-fact dd { margin: 5px 0 0; font-size: 12px; }

.listen-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }

.listen-links a {
  padding: 9px 13px;
  border: 1px solid var(--aqua);
  border-radius: 999px;
  color: var(--ink);
  font-size: 11px;
  text-decoration: none;
}

.tracklist { margin-top: 38px; }

.tracklist-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }

.tracklist h3 { margin: 0; font-family: Georgia, "Noto Serif TC", serif; font-size: 23px; font-weight: 400; letter-spacing: .08em; }

.track-count { color: var(--light-aqua); font-size: 10px; letter-spacing: .1em; }

.tracklist ol { margin: 15px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }

.tracklist li { display: grid; grid-template-columns: 34px 1fr; gap: 8px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 13px; }

.track-number { color: var(--aqua); font-family: Nunito, sans-serif; font-size: 11px; }

.empty-tracks { margin: 15px 0 0; padding: 22px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--light-aqua); font-size: 12px; line-height: 1.7; }

.catalog-section { padding: 52px 0 70px; background: var(--paper); color: var(--navy-text); }

.catalog-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; padding: 0 23px 28px; }

.catalog-heading .section-label { color: var(--blue); }

.catalog-heading h2 { margin: 0; font-family: Georgia, "Noto Serif TC", serif; font-size: 38px; font-weight: 400; letter-spacing: .08em; }

.album-count { margin: 0 0 5px; color: var(--blue); font-family: Nunito, sans-serif; font-size: 10px; letter-spacing: .12em; }

.album-shelf + .album-shelf { margin-top: 42px; }

.shelf-heading { display: flex; align-items: center; gap: 13px; padding: 0 23px 12px; }

.shelf-heading h3 { margin: 0; color: var(--blue); font-family: Nunito, sans-serif; font-size: 13px; font-weight: 400; letter-spacing: .16em; }

.shelf-heading::after { content: ""; height: 1px; flex: 1; background: rgba(137, 203, 210, .7); }

.shelf-scroll {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(135px, 42vw);
  gap: 14px;
  overflow-x: auto;
  padding: 0 23px 10px;
  scroll-padding-inline: 23px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: #89cbd2 transparent;
}

.album-card {
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--navy-text);
  cursor: pointer;
  text-align: left;
  scroll-snap-align: start;
}

.album-card-art { box-shadow: 0 12px 26px rgba(7, 61, 99, .12); }

.album-card .album-art-placeholder span { font-size: clamp(16px, 5vw, 24px); }

.album-card-title { display: block; margin-top: 11px; font-size: 13px; line-height: 1.45; }

.album-card-year { display: block; margin-top: 3px; color: var(--blue); font-family: Nunito, sans-serif; font-size: 10px; letter-spacing: .1em; }

.album-card[aria-current="true"] .album-card-art { outline: 3px solid var(--blue); outline-offset: -3px; }

.loading-message, .error-message { color: var(--light-aqua); font-size: 13px; }

.discography-footer { padding: 38px 23px max(38px, env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: var(--deep); }

.discography-footer span { font-family: Georgia, "Noto Serif TC", serif; font-size: 20px; letter-spacing: .08em; }

.discography-footer p { margin: 9px 0 20px; color: var(--light-aqua); font-size: 11px; }

@media (min-width: 720px) {
  .discography-header { padding: 16px max(32px, calc((100vw - 1180px) / 2)); }
  .selected-album { padding: 38px max(40px, calc((100vw - 1180px) / 2)) 88px; }
  .selected-album-content { display: grid; grid-template-columns: minmax(280px, .85fr) minmax(360px, 1.15fr); column-gap: clamp(48px, 8vw, 120px); align-items: start; }
  .selected-art { width: 100%; max-width: 470px; margin: 0; }
  .selected-copy { padding-top: 8px; }
  .tracklist { grid-column: 2; margin-top: 42px; }
  .catalog-section { padding: 80px 0 100px; }
  .catalog-heading, .shelf-heading { padding-inline: max(40px, calc((100vw - 1180px) / 2)); }
  .shelf-scroll { grid-auto-columns: minmax(160px, 18vw); gap: 20px; padding-inline: max(40px, calc((100vw - 1180px) / 2)); scroll-padding-inline: max(40px, calc((100vw - 1180px) / 2)); }
  .discography-footer { padding-inline: max(40px, calc((100vw - 1180px) / 2)); }
}

@media (min-width: 1100px) {
  .shelf-scroll { grid-auto-columns: 190px; }
  .album-facts { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }