:root {
  color-scheme: light;
  --ink: #11120f;
  --paper: #f6f7f1;
  --paper-deep: #e9ebe2;
  --muted: #696b63;
  --line: #c7c9c0;
  --accent: #c8f135;
  --accent-ink: #263000;
  --max-width: 92rem;
  --gutter: clamp(1rem, 3vw, 3rem);
  --display: "Arial Narrow", "Avenir Next Condensed", "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: "Songti SC", "STSong", "Noto Serif CJK SC", Georgia, serif;
  --utility: "Avenir Next", "Helvetica Neue", "PingFang SC", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 20rem;
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), rgba(17, 18, 15, 0.035) 1px) 0 0 / 4rem 4rem,
    var(--paper);
  font-family: var(--utility);
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--accent);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.site-header,
.site-footer,
#app {
  width: min(100%, var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5.75rem;
  padding: 1rem var(--gutter);
  border-bottom: 1px solid var(--ink);
}

.brand {
  display: inline-flex;
  gap: 0.02em;
  align-items: center;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-stretch: condensed;
  font-weight: 900;
  letter-spacing: -0.045em;
  line-height: 1;
  text-decoration: none;
}

.brand-slash {
  color: var(--accent-ink);
  background: var(--accent);
  padding: 0.12em 0.22em 0.02em;
  transform: skew(-8deg);
}

.catalog-mark {
  display: flex;
  gap: 1rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

#app {
  min-height: calc(100vh - 11rem);
  padding-inline: var(--gutter);
}

#app:focus {
  outline: none;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 2.3fr) minmax(13rem, 0.7fr);
  gap: 2rem;
  padding: clamp(3.5rem, 8vw, 8.5rem) 0 clamp(2.5rem, 5vw, 4.5rem);
  border-bottom: 1px solid var(--ink);
}

.hero::before {
  content: "INDEX  /  01";
  position: absolute;
  top: 1.1rem;
  left: 0;
  color: var(--muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.eyebrow,
.section-kicker,
.group-title,
.meta-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero-title {
  max-width: 13ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.3rem, 9vw, 9.8rem);
  font-stretch: condensed;
  font-weight: 900;
  letter-spacing: -0.075em;
  line-height: 0.82;
}

.hero-title .accent-word {
  display: inline-block;
  margin-top: 0.08em;
  padding: 0.02em 0.12em 0.06em;
  color: var(--accent-ink);
  background: var(--accent);
  transform: rotate(-1deg);
}

.hero-aside {
  display: flex;
  flex-direction: column;
  align-self: end;
  gap: 1.25rem;
  padding-bottom: 0.25rem;
}

.hero-copy {
  max-width: 24rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.88rem, 1.25vw, 1rem);
  line-height: 1.8;
}

.hero-count {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: baseline;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.hero-count strong {
  font-family: var(--display);
  font-size: 2.2rem;
  line-height: 1;
}

.search-section {
  padding: clamp(2.2rem, 5vw, 4rem) 0;
  border-bottom: 1px solid var(--ink);
}

.search-label {
  display: block;
  margin-bottom: 1rem;
}

.search-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: clamp(0.6rem, 2vw, 1.5rem);
  align-items: center;
  border-bottom: clamp(2px, 0.25vw, 4px) solid var(--ink);
}

.search-number,
.search-icon {
  font-size: clamp(1rem, 2vw, 1.4rem);
  font-weight: 800;
}

.search-input {
  width: 100%;
  min-height: 5rem;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-radius: 0;
  font-family: var(--display);
  font-size: clamp(1.9rem, 5vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  outline: 0;
}

.search-input::placeholder {
  color: #a7a99f;
  opacity: 1;
}

.search-row:focus-within {
  border-color: #718b05;
  box-shadow: 0 6px 0 -3px var(--accent);
}

.content-section {
  padding: clamp(2.5rem, 5vw, 5rem) 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.section-title {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.1rem, 5vw, 5.2rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.section-count {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.artist-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}

.artist-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: clamp(12rem, 22vw, 21rem);
  padding: clamp(1rem, 2vw, 1.6rem);
  overflow: hidden;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease;
}

.artist-card::after {
  content: "↗";
  position: absolute;
  right: 1rem;
  bottom: 0.75rem;
  font-size: 2rem;
  transform: translate(120%, 120%);
  transition: transform 160ms ease;
}

.artist-card:hover,
.artist-card:focus-visible {
  color: var(--accent-ink);
  background: var(--accent);
}

.artist-card:hover::after,
.artist-card:focus-visible::after {
  transform: translate(0, 0);
}

.artist-index {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.artist-name {
  max-width: 7ch;
  margin: auto 0 0;
  font-family: var(--display);
  font-size: clamp(2.2rem, 4.8vw, 5.2rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 0.88;
}

.artist-total {
  margin-top: 1rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.result-list,
.song-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.song-link {
  display: grid;
  grid-template-columns: minmax(2.6rem, 0.35fr) minmax(0, 2fr) minmax(7rem, 0.8fr) auto;
  gap: 1rem;
  align-items: center;
  min-height: 5.2rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding 160ms ease, background-color 160ms ease;
}

.song-link:hover,
.song-link:focus-visible {
  padding-inline: 0.8rem;
  background: var(--accent);
}

.song-order {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.song-title {
  overflow-wrap: anywhere;
  font-family: var(--display);
  font-size: clamp(1.25rem, 2.4vw, 2.25rem);
  font-weight: 850;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.song-artist,
.song-group {
  overflow: hidden;
  color: var(--muted);
  font-size: 0.72rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.song-arrow {
  font-size: 1.25rem;
}

.group-block + .group-block {
  margin-top: clamp(3rem, 7vw, 6rem);
}

.group-title {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.9rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin: 0 0 clamp(2rem, 5vw, 4rem);
  padding: 1.2rem 0;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 0.73rem;
  font-weight: 700;
}

.breadcrumb a {
  color: var(--ink);
  text-underline-offset: 0.2em;
}

.artist-hero,
.lyric-hero {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(12rem, 0.65fr);
  gap: 2rem;
  padding-bottom: clamp(3rem, 7vw, 7rem);
  border-bottom: 1px solid var(--ink);
}

.artist-title,
.lyric-title {
  max-width: 13ch;
  margin: 0;
  overflow-wrap: anywhere;
  font-family: var(--display);
  font-size: clamp(3.4rem, 10vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 0.82;
}

.artist-stat,
.lyric-meta {
  align-self: end;
  padding-top: 1rem;
  border-top: 1px solid var(--ink);
}

.artist-stat strong {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 0.8;
}

.artist-stat span,
.lyric-meta dd,
.lyric-meta dt {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.lyric-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1rem;
  margin: 0;
}

.lyric-meta dd {
  margin: 0;
  color: var(--ink);
  letter-spacing: 0;
}

.lyric-sheet {
  position: relative;
  display: grid;
  grid-template-columns: minmax(8rem, 0.45fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 9rem);
  padding: clamp(3.5rem, 9vw, 9rem) 0;
}

.lyric-rail {
  position: sticky;
  top: 2rem;
  align-self: start;
}

.lyric-rail .song-order {
  display: block;
  margin-bottom: 1.25rem;
  font-family: var(--display);
  font-size: clamp(3rem, 7vw, 6.5rem);
  letter-spacing: -0.05em;
  line-height: 0.8;
}

.back-link {
  display: inline-block;
  margin-top: 1.4rem;
  font-size: 0.72rem;
  font-weight: 750;
  text-underline-offset: 0.25em;
}

.lyrics {
  max-width: 41rem;
  font-family: var(--body);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 2.05;
}

.lyrics p {
  margin: 0 0 2.1em;
  white-space: pre-line;
}

.empty-state,
.error-state {
  display: grid;
  min-height: 24rem;
  place-content: center;
  padding: 4rem 1rem;
  text-align: center;
}

.empty-code {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--accent-ink);
  font-family: var(--display);
  font-size: clamp(5rem, 14vw, 12rem);
  font-weight: 900;
  letter-spacing: -0.08em;
  line-height: 0.75;
  text-shadow: 0.05em 0.05em 0 var(--accent);
}

.empty-title {
  margin: 1rem 0 0.6rem;
  font-family: var(--display);
  font-size: clamp(1.7rem, 4vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.empty-copy {
  max-width: 34rem;
  margin: 0 auto 1.5rem;
  color: var(--muted);
  line-height: 1.7;
}

.reset-button,
.home-button {
  justify-self: center;
  min-height: 2.8rem;
  padding: 0.7rem 1rem;
  color: var(--accent-ink);
  background: var(--accent);
  border: 1px solid var(--ink);
  border-radius: 0;
  box-shadow: 0.3rem 0.3rem 0 var(--ink);
  cursor: pointer;
  font-weight: 800;
  text-decoration: none;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 6rem;
  padding: 1rem var(--gutter);
  color: var(--paper);
  background: var(--ink);
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.13em;
}

.site-footer a {
  text-underline-offset: 0.25em;
}

.noscript-message {
  margin: 0;
  padding: 1rem;
  color: #fff;
  background: #a32316;
  text-align: center;
}

@media (max-width: 62rem) {
  .artist-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero,
  .artist-hero,
  .lyric-hero {
    grid-template-columns: 1fr;
  }

  .hero-aside,
  .artist-stat,
  .lyric-meta {
    max-width: 28rem;
  }

  .lyric-sheet {
    grid-template-columns: minmax(7rem, 0.35fr) minmax(0, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 42rem) {
  body {
    background-size: 2rem 2rem;
  }

  .site-header {
    min-height: 4.5rem;
  }

  .catalog-mark > :first-child {
    display: none;
  }

  .hero {
    padding-top: 5rem;
  }

  .hero-title,
  .artist-title,
  .lyric-title {
    line-height: 0.88;
  }

  .artist-grid {
    grid-template-columns: 1fr;
  }

  .artist-card {
    min-height: 12rem;
  }

  .song-link {
    grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  }

  .song-artist,
  .song-group {
    display: none;
  }

  .lyric-sheet {
    display: block;
  }

  .lyric-rail {
    position: static;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 3.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--line);
  }

  .lyric-rail .song-order,
  .back-link {
    margin: 0;
  }

  .section-heading,
  .site-footer {
    align-items: flex-start;
  }

  .site-footer {
    flex-direction: column;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}