:root {
  --bg: #131414;
  --bg-2: #1a1c1c;
  --panel: #1e2020;
  --panel-2: #252828;
  --line: #2f3333;
  --text: #ece7df;
  --muted: #a39d94;
  --faint: #6f6a63;
  --accent: #e3a6a1;
  --accent-ink: #2a1716;
  --accent-soft: rgba(227, 166, 161, 0.14);
  --radius: 14px;
  --font-ko: "Noto Sans KR", system-ui, -apple-system, "Apple SD Gothic Neo", sans-serif;
  --font-ja: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --font-display: "Cormorant Garamond", "Noto Serif JP", serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ko);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; }
button, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.skip {
  position: absolute; left: -9999px; top: 8px;
  background: var(--accent); color: var(--accent-ink); padding: 8px 12px; border-radius: 8px; z-index: 50;
}
.skip:focus { left: 8px; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px clamp(16px, 4vw, 40px);
  background: rgba(19, 20, 20, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { text-decoration: none; display: flex; align-items: baseline; gap: 6px; }
.brand-mark { font-family: var(--font-display); font-size: 26px; font-style: italic; letter-spacing: 0.01em; }
.brand-sub { font-size: 13px; letter-spacing: 0.22em; color: var(--accent); font-weight: 700; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
  text-decoration: none; font-size: 14px; color: var(--muted);
  padding: 7px 12px; border-radius: 999px; transition: color .15s, background .15s;
}
.nav a:hover { color: var(--text); }
.nav a.active { color: var(--accent-ink); background: var(--accent); font-weight: 500; }

main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: clamp(20px, 4vw, 40px) clamp(16px, 4vw, 40px) 64px; }
main:focus { outline: none; }

.footer {
  border-top: 1px solid var(--line);
  padding: 20px clamp(16px, 4vw, 40px) 28px;
  color: var(--faint); font-size: 12.5px; text-align: center;
}
.footer p { margin: 2px 0; }

/* ---------- home ---------- */
.hero { padding: clamp(28px, 7vw, 72px) 0 clamp(24px, 4vw, 40px); }
.hero-kicker { color: var(--accent); font-size: 13px; letter-spacing: 0.2em; font-weight: 700; margin: 0 0 14px; }
.hero h1 {
  font-family: var(--font-display); font-weight: 500; font-style: italic;
  font-size: clamp(48px, 10vw, 96px); line-height: 0.95; margin: 0; letter-spacing: -0.01em;
}
.hero h1 span { color: var(--accent); font-style: normal; font-family: var(--font-ko); font-weight: 700; font-size: 0.38em; letter-spacing: 0.18em; vertical-align: middle; margin-left: 0.3em; }
.hero p { color: var(--muted); max-width: 34em; margin: 18px 0 0; }

.menu-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.menu-card {
  position: relative; display: flex; flex-direction: column; justify-content: space-between;
  min-height: 210px; padding: 22px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--line);
  text-decoration: none; overflow: hidden;
  transition: transform .2s, border-color .2s, background .2s;
}
.menu-card:hover { transform: translateY(-3px); border-color: var(--accent); background: var(--panel-2); }
.menu-card .num { font-family: var(--font-display); font-size: 15px; color: var(--faint); }
.menu-card h2 { margin: 0; font-size: 24px; font-weight: 700; }
.menu-card h2 small { display: block; font-family: var(--font-display); font-style: italic; font-weight: 500; font-size: 17px; color: var(--accent); margin-top: 2px; }
.menu-card p { color: var(--muted); font-size: 14px; margin: 10px 0 0; }
.menu-card .arrow { position: absolute; right: 20px; top: 18px; color: var(--faint); font-size: 20px; transition: color .2s, transform .2s; }
.menu-card:hover .arrow { color: var(--accent); transform: translate(2px, -2px); }

/* ---------- page head ---------- */
.page-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.page-head h1 { margin: 0; font-size: clamp(26px, 4vw, 34px); }
.page-head h1 small { display: block; font-family: var(--font-display); font-style: italic; font-weight: 500; color: var(--accent); font-size: 0.62em; }
.page-head p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

/* ---------- search & sort ---------- */
.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; }
.search {
  flex: 1; display: flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px;
  padding: 0 16px; transition: border-color .15s;
}
.search:focus-within { border-color: var(--accent); }
.search svg { flex: none; color: var(--faint); }
.search input { flex: 1; min-width: 0; background: none; border: 0; outline: none; padding: 12px 0; }
.search input::placeholder { color: var(--faint); }
.btn {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  background: var(--panel); border: 1px solid var(--line); color: var(--text);
  padding: 10px 14px; border-radius: 999px; cursor: pointer; text-decoration: none; font-size: 14px;
  transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 500; }
.btn.primary:hover { filter: brightness(1.05); }
.count { color: var(--faint); font-size: 13px; margin: 0 0 10px 4px; }

/* ---------- song list ---------- */
.song-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.song-list li { border-bottom: 1px solid var(--line); }
.song-row {
  display: grid; grid-template-columns: 1fr auto; gap: 4px 16px; align-items: center;
  padding: 14px 6px; text-decoration: none; transition: background .15s;
  border-radius: 8px;
}
.song-row:hover { background: var(--bg-2); }
.song-row .t-ja { font-family: var(--font-ja); font-size: 18px; font-weight: 600; line-height: 1.35; }
.song-row .t-sub { color: var(--muted); font-size: 13.5px; }
.song-row .t-sub .pron { color: var(--faint); }
.song-row .meta { text-align: right; color: var(--faint); font-size: 12.5px; grid-row: span 2; }
.song-row .meta .date { display: block; color: var(--muted); font-variant-numeric: tabular-nums; }
.tags { display: inline-flex; gap: 4px; margin-top: 4px; justify-content: flex-end; }
.tag { font-size: 11px; padding: 1px 7px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.tag.on { border-color: var(--accent); color: var(--accent); }
.empty { color: var(--muted); padding: 40px 0; text-align: center; }

/* ---------- song page ---------- */
.song-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; align-items: start; }
.back { display: inline-flex; gap: 6px; color: var(--muted); text-decoration: none; font-size: 14px; margin-bottom: 14px; }
.back:hover { color: var(--text); }
.song-title h1 { font-family: var(--font-ja); font-weight: 600; font-size: clamp(26px, 4vw, 36px); line-height: 1.25; margin: 0; }
.song-title .sub { color: var(--muted); margin: 4px 0 0; }
.song-title .sub .pron { color: var(--faint); }
.song-title .rel { color: var(--faint); font-size: 13px; margin: 6px 0 18px; }

.player-wrap { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.player-wrap iframe, .player-wrap > div { position: absolute; inset: 0; width: 100%; height: 100%; }
.no-video {
  aspect-ratio: 16 / 9; border-radius: var(--radius); border: 1px dashed var(--line);
  display: grid; place-content: center; text-align: center; color: var(--muted); padding: 20px; background: var(--bg-2);
}
.no-video strong { display: block; color: var(--text); margin-bottom: 4px; }
.video-label { color: var(--faint); font-size: 12.5px; margin: 8px 2px 0; }

.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin: 14px 0; }
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; user-select: none; font-size: 14px; color: var(--muted); background: none; border: 0; padding: 4px 0; }
.switch .track { width: 40px; height: 22px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--line); position: relative; transition: background .2s, border-color .2s; }
.switch .track::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: var(--muted); transition: transform .2s, background .2s; }
.switch[aria-checked="true"] { color: var(--text); }
.switch[aria-checked="true"] .track { background: var(--accent-soft); border-color: var(--accent); }
.switch[aria-checked="true"] .track::after { transform: translateX(18px); background: var(--accent); }

.lyrics {
  list-style: none; margin: 0; padding: 18px 8px; max-height: min(62vh, 640px); overflow-y: auto;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  scroll-behavior: smooth; overscroll-behavior: contain; position: relative;
}
.lyrics li {
  padding: 10px 14px; border-radius: 10px; transition: background .2s, opacity .2s;
  border-left: 2px solid transparent;
}
.lyrics.timed li { cursor: pointer; }
.lyrics.timed li:hover { background: var(--panel); }
.lyrics.syncing li { opacity: 0.55; }
.lyrics.syncing li.past { opacity: 0.4; }
.lyrics li.active { opacity: 1 !important; background: var(--accent-soft); border-left-color: var(--accent); }
.lyrics .l-ja { font-family: var(--font-ja); font-size: 17px; line-height: 1.6; }
.lyrics .l-ko { color: var(--muted); font-size: 14.5px; margin-top: 2px; }
.lyrics li.active .l-ko { color: var(--text); }
.lyrics li.gap { padding: 6px 14px; }
.lyrics .l-time { float: right; font-size: 11px; color: var(--faint); font-variant-numeric: tabular-nums; margin-left: 8px; padding-top: 4px; }
.lyrics-empty { padding: 36px 20px; text-align: center; color: var(--muted); background: var(--bg-2); border: 1px dashed var(--line); border-radius: var(--radius); }

.side { position: sticky; top: 84px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.side h2 { font-size: 14px; color: var(--muted); font-weight: 500; margin: 2px 4px 10px; display: flex; justify-content: space-between; align-items: center; }
.side .search { padding: 0 12px; }
.side .search input { padding: 9px 0; font-size: 14px; }
.side-list { position: relative; list-style: none; margin: 10px 0 0; padding: 0; max-height: calc(100vh - 230px); overflow-y: auto; overscroll-behavior: contain; }
.side-list a { display: block; padding: 8px 10px; border-radius: 8px; text-decoration: none; }
.side-list a:hover { background: var(--panel-2); }
.side-list a.current { background: var(--accent-soft); }
.side-list .s-ja { font-family: var(--font-ja); font-size: 14.5px; display: block; line-height: 1.4; }
.side-list .s-ko { font-size: 12px; color: var(--faint); }
.side-list a.current .s-ja { color: var(--accent); }
.mini-sort { font-size: 12px; padding: 4px 10px; }

/* ---------- placeholder pages ---------- */
.placeholder {
  padding: clamp(36px, 8vw, 80px) 24px; text-align: center; border: 1px dashed var(--line); border-radius: var(--radius); background: var(--bg-2);
}
.placeholder .big { font-family: var(--font-display); font-style: italic; font-size: clamp(40px, 8vw, 64px); color: var(--accent); line-height: 1; margin: 0 0 10px; }
.placeholder p { color: var(--muted); margin: 6px 0; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .song-layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .side-list { max-height: 360px; }
}
@media (max-width: 720px) {
  .menu-cards { grid-template-columns: 1fr; }
  .menu-card { min-height: 150px; }
  .topbar { flex-wrap: wrap; gap: 8px; padding-top: 10px; padding-bottom: 10px; }
  .brand-mark { font-size: 22px; }
  .nav a { padding: 6px 10px; font-size: 13.5px; }
  .toolbar { flex-wrap: wrap; }
  .toolbar .search { flex-basis: 100%; }
  .song-row .t-ja { font-size: 16.5px; }
  .lyrics { max-height: 56vh; }
  .lyrics .l-ja { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}