:root {
  --bg: #f6f4ef;
  --card: #ffffff;
  --ink: #1b1f24;
  --muted: #5d6670;
  --line: #e2ded5;
  --brand: #1d3557;
  --brand-ink: #ffffff;
  --accent: #b85c0f;
  --miss: #9a5b00;
  --danger: #b02a37;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161b;
    --card: #1b2128;
    --ink: #eef1f4;
    --muted: #9aa5b1;
    --line: #2c343d;
    --brand: #f0a04b;
    --brand-ink: #1b1f24;
    --accent: #f0a04b;
    --miss: #f2c27a;
    --danger: #ff8a8a;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Noto Sans KR", "Malgun Gothic", sans-serif;
}
main { max-width: 560px; margin: 0 auto; padding: 16px 16px calc(24px + env(safe-area-inset-bottom)); }
.head-row { display: flex; align-items: flex-start; gap: 8px; }
header h1 { flex: 1; margin: 8px 0 0; font-size: 1.5rem; line-height: 1.3; }
.sub { margin: 2px 0 16px; color: var(--muted); font-size: .92rem; }
h2 { font-size: 1.05rem; margin: 0 0 6px; }

label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: 4px; }
.row { display: flex; gap: 8px; }
.row.wrap { flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
button { font: inherit; cursor: pointer; min-height: 44px; }
button:disabled { opacity: .5; cursor: default; }
input[type=text], select, textarea {
  font: inherit; width: 100%; min-width: 0; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink);
}
select { flex: 1; width: auto; }
textarea { resize: vertical; line-height: 1.45; }
.ghost { padding: 10px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink); }
.ghost.danger { color: var(--danger); }
.primary { padding: 10px 16px; border: 0; border-radius: 10px; background: var(--brand); color: var(--brand-ink); font-weight: 700; }
.wide { display: block; width: 100%; margin-top: 8px; }
.icon-btn { flex: none; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: 50%; background: var(--card); color: var(--ink); font-size: 1.35rem; line-height: 1; }

.lists { margin-bottom: 4px; }
.small-row { margin-top: 8px; }
.small-row .ghost { flex: 1; font-size: .92rem; }

.play-row { margin: 16px 0 8px; }
.play {
  flex: 1; padding: 16px 10px; font-size: 1.08rem; font-weight: 700; border: 0; border-radius: 14px;
  background: var(--brand); color: var(--brand-ink);
}
.play.alt { background: var(--card); color: var(--brand); border: 2px solid var(--brand); }
.play:disabled { opacity: .55; cursor: default; }
.parts { margin: 0 0 8px; }
.parts p { margin: 0 0 6px; color: var(--muted); font-size: .88rem; }
.parts .primary { flex: 1 0 30%; }
.status { margin: 0 0 4px; min-height: 1.5em; color: var(--muted); font-size: .92rem; }

.songs { list-style: none; margin: 8px 0 16px; padding: 0; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.songs:empty { display: none; }
.song { padding: 8px 8px 8px 12px; border-top: 1px solid var(--line); }
.song:first-child { border-top: 0; }
.song-top { display: flex; align-items: center; gap: 6px; }
.num { flex: none; width: 1.8em; color: var(--muted); font-variant-numeric: tabular-nums; font-size: .85rem; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.main b { font-weight: 600; overflow-wrap: anywhere; }
.main small { color: var(--muted); overflow-wrap: anywhere; }
.fav { flex: none; width: 44px; height: 44px; border: 0; border-radius: 50%; background: transparent; color: #d6336c; font-size: 1.35rem; line-height: 1; }
.song-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 4px 0 0 1.8em; }
.go, .tool {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 12px;
  border-radius: 999px; text-decoration: none; font-size: .88rem; font-weight: 600;
}
.go { border: 1px solid var(--accent); color: var(--accent); }
.go.search { border-style: dashed; color: var(--miss); border-color: var(--miss); }
.tool { border: 1px solid var(--line); background: var(--card); color: var(--muted); }
.tool.sq { width: 44px; padding: 0; font-size: 1rem; }
.tool.del { color: var(--danger); }
.finding { color: var(--muted); font-size: .85rem; }
.paste { display: flex; gap: 6px; width: 100%; margin-top: 2px; }
.paste input { flex: 1; }

.add, .share { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; margin: 16px 0; }
.share-out { margin-top: 10px; }
.share-out input { margin-bottom: 8px; }
.share-out .ghost { flex: 1; }
.note { color: var(--muted); font-size: .85rem; margin: 10px 0; }
.backup .ghost { flex: 1; }

.incoming { background: var(--card); border: 2px solid var(--brand); border-radius: 14px; padding: 12px 14px; margin: 0 0 14px; }
.incoming p { margin: 0 0 8px; }
.incoming .primary { flex: 2; }
.incoming .ghost { flex: 1; }

.help { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px; }
.help summary { cursor: pointer; font-weight: 600; min-height: 32px; }
.help ul { margin: 8px 0 4px; padding-left: 1.1em; }
.help li { margin: 6px 0; font-size: .92rem; }
footer { margin-top: 16px; color: var(--muted); font-size: .8rem; }
.credit p { margin: 4px 0; }

dialog { width: min(92vw, 420px); padding: 18px 16px; border: 1px solid var(--line); border-radius: 16px; background: var(--card); color: var(--ink); }
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog h2 { margin-bottom: 8px; }
dialog p { margin: 0 0 12px; overflow-wrap: anywhere; }
dialog input[type=text] { margin-bottom: 12px; }
dialog .row.end { margin-top: 8px; }
dialog .row.end button { min-width: 88px; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; font-size: .95rem; color: var(--ink); }
.check input { width: 22px; height: 22px; }
.primary.danger-bg { background: var(--danger); color: #fff; }

/* P2: 이달의 선곡·즐겨찾기·운영자 화면 */
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin: 0 0 14px; padding: 4px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.tabs button { padding: 10px 8px; border: 0; border-radius: 9px; background: transparent; color: var(--muted); font-weight: 600; }
.tabs button[aria-selected="true"] { background: var(--brand); color: var(--brand-ink); }
.pick select { width: 100%; }
.month-note { margin: 8px 0 0; padding: 10px 12px; background: var(--card); border-left: 4px solid var(--accent); border-radius: 8px; }
.notice { margin: 0 0 14px; padding: 10px 12px; background: var(--card); border: 2px solid var(--brand); border-radius: 12px; }
.song-top .go { flex: none; }
.song.miss .main b, .song.miss .main small { color: var(--muted); }
.song.miss .main b { font-weight: 500; }
.vid { font-size: .82rem; }
.vid.miss, .vid.error { color: var(--miss) !important; }
.linkish { min-height: 44px; padding: 0 6px; border: 0; background: none; color: var(--accent); font-weight: 600; text-decoration: underline; }
.danger-line { color: var(--danger) !important; border-color: var(--danger) !important; }
input[type=password], input[type=month] {
  font: inherit; width: 100%; min-width: 0; min-height: 44px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--card); color: var(--ink);
}
#login-form input[type=password] { margin-bottom: 4px; }
#note { margin-bottom: 4px; }