/* 레이아웃: 음악 앱 앨범 페이지처럼. 어두운 머리(대표 썸네일을 흐리게 깐 배경) → 편곡별로 「키 카드」 격자.
   키 카드 = 그 키 영상 썸네일(얼굴) + 악보 줄 + MR 줄. 카드 하나가 키 하나의 묶음. */
:root{
  --bg:#fbf8f8; --surface:#ffffff; --ink:#16171a; --muted:#6b6e75; --line:#e4e4e0;
  --accent:#e2477a; --on-accent:#ffffff; --chip:#f3eff0; --brand:#ff6a94; --blush:#fde6ec; --keyblack:#1b1a1c;
  --hero-ink:#ffffff; --hero-muted:rgba(255,255,255,.72);
  --f-body:"Noto Sans KR","Noto Sans JP","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#111214; --surface:#1b1c20; --ink:#eceef1; --muted:#9a9ea7; --line:#2c2e34;
  --accent:#ff7fa3; --on-accent:#2a0d17; --chip:#25272c; --brand:#ff7fa3; --blush:#2b1d22; --keyblack:#0b0b0c; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#111214; --surface:#1b1c20; --ink:#eceef1; --muted:#9a9ea7; --line:#2c2e34;
  --accent:#ff7fa3; --on-accent:#2a0d17; --chip:#25272c; --brand:#ff7fa3; --blush:#2b1d22; --keyblack:#0b0b0c; color-scheme:dark}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55}
.wrap{max-width:920px;margin:0 auto;padding-block:14px 56px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:grid;gap:22px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
svg.i{width:16px;height:16px;flex:none}
.wrap>*,#view>*,.arr>*{min-width:0}
.wrap,#view,.arr{grid-template-columns:minmax(0,1fr)}

.topbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;font-weight:900;font-size:14px;letter-spacing:.06em;color:var(--ink);text-decoration:none}
.brand img{width:34px;height:34px;border-radius:50%;display:block}
.brand small{display:block;font-size:10px;font-weight:700;letter-spacing:.16em;color:var(--brand)}
.tools{display:flex;gap:6px;flex-wrap:wrap}
.seg{display:flex;border-radius:999px;overflow:hidden;background:var(--chip)}
.seg button,.seg a{font:inherit;font-size:12px;font-weight:700;padding:6px 11px;border:0;background:none;color:var(--muted);cursor:pointer;text-decoration:none}
.seg [aria-pressed="true"],.seg [aria-current="page"]{background:var(--ink);color:var(--bg);border-radius:999px}

/* 머리 — 대표 썸네일을 흐리게 깐 어두운 판 */
.hero{position:relative;border-radius:22px;overflow:hidden;color:var(--hero-ink);background:#2a1d18}
.hero .bg{position:absolute;inset:-30px;background-size:cover;background-position:center;filter:blur(26px) saturate(1.15);opacity:.7;transform:scale(1.1)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(255,106,148,.30),rgba(20,12,10,.70) 70%)}
.pianokeys{height:18px;border-radius:0 0 22px 22px;margin-top:-22px;position:relative;z-index:2;overflow:hidden;background:repeating-linear-gradient(90deg,#fff 0 22px,#d9d4d6 22px 23px)}
.pianokeys::before{content:"";position:absolute;inset:0 0 7px 0;background:linear-gradient(90deg,transparent 0 15px,var(--keyblack) 15px 29px,transparent 29px 38px,var(--keyblack) 38px 52px,transparent 52px 84px,var(--keyblack) 84px 98px,transparent 98px 107px,var(--keyblack) 107px 121px,transparent 121px 130px,var(--keyblack) 130px 144px,transparent 144px 161px);background-size:161px 100%}
.hero .in{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,300px) 1fr;gap:22px;align-items:end;padding:22px 22px 46px}
.hero img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;box-shadow:0 12px 30px rgba(0,0,0,.45);display:block}
.hero .eyebrow{font-size:12px;font-weight:700;letter-spacing:.12em;color:#ffc2d3}
.hero h1{margin:4px 0 0;font-weight:900;font-size:clamp(28px,6vw,44px);line-height:1.15;letter-spacing:-.01em;text-wrap:balance}
.hero .sub{color:var(--hero-muted);margin-top:4px}
.hero .facts{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.hero .facts span{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.16);backdrop-filter:blur(4px)}
.lead{margin:6px 0 0;color:var(--muted);max-width:62ch}

/* 편곡 탭(바로가기) */
.jump{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;display:flex;gap:6px;overflow-x:auto;padding-block:8px;background:var(--bg)}
.jump button{font:inherit;font-size:13px;font-weight:700;white-space:nowrap;padding:7px 14px;border-radius:999px;border:0;background:var(--blush);color:var(--accent);cursor:pointer}
.arr{display:grid;gap:14px;scroll-margin-top:56px;padding:18px;border-radius:22px;background:var(--t-bg,transparent);box-shadow:inset 0 0 0 1px var(--t-line,transparent)}
.arr h2{margin:0;font-size:21px;font-weight:900;letter-spacing:-.01em;color:var(--t-ink,var(--ink));display:flex;align-items:center;gap:8px}
.arr h2::before{content:"";width:6px;height:22px;border-radius:3px;background:var(--brand)}
.arr .desc{margin:2px 0 0;font-size:14px;color:var(--muted);max-width:60ch}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .arr{background:var(--t-bg-d,transparent);box-shadow:inset 0 0 0 1px var(--line)} :root:not([data-theme="light"]) .arr h2{color:var(--ink)}}
:root[data-theme="dark"] .arr{background:var(--t-bg-d,transparent);box-shadow:inset 0 0 0 1px var(--line)} :root[data-theme="dark"] .arr h2{color:var(--ink)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:12px}

/* 키 카드 */
.card{background:var(--surface);border-radius:16px;overflow:hidden;display:grid;box-shadow:0 1px 2px rgba(0,0,0,.05),0 0 0 1px var(--line)}
.top{display:grid;grid-template-columns:132px 1fr;gap:12px;align-items:center;padding:12px 12px 4px}
.thumb{position:relative;display:block;aspect-ratio:16/9;background:#222;border-radius:10px;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.thumb .play{position:absolute;inset:auto 6px 6px auto;display:grid;place-items:center;width:26px;height:26px;color:#fff;background:rgba(0,0,0,.55);border-radius:50%}
.thumb.empty{display:grid;place-items:center;color:#bbb;font-size:13px}
.player{aspect-ratio:16/9;background:#000}
.player iframe{width:100%;height:100%;border:0;display:block}
.card.playing .top{grid-template-columns:1fr}
.card.playing .top .thumb{display:none}
.ck{display:grid;gap:2px;min-width:0}
.ck b{font-size:24px;font-weight:900;letter-spacing:-.01em;line-height:1.1}
.ck a{font-size:13px;font-weight:700;color:var(--accent);text-decoration:none}
.ck span{font-size:12px;color:var(--muted)}
.part{display:grid;gap:6px;padding:8px 12px}
.part:last-child{padding-bottom:14px}
.part .lab{font-size:15px;font-weight:900;color:var(--ink);display:flex;align-items:center;gap:7px;padding-top:4px}
.part .lab svg.i{width:20px;height:20px;color:var(--brand)}
.btns{display:flex;flex-wrap:wrap;gap:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;text-decoration:none;font-size:13px;font-weight:700;padding:7px 12px;border-radius:999px;background:var(--chip);color:var(--ink);min-height:36px}
.btn:hover{outline:1px solid var(--accent)}
.btn .meta{font-size:11px;font-weight:500;color:var(--muted)}
.btn.rec{background:var(--brand);color:#fff}
.btn.rec .meta{color:#fff;opacity:.85}
.none{font-size:13px;color:var(--muted)}

.ad{background:var(--chip);border-radius:16px;min-height:90px;display:grid;place-items:center;color:var(--muted);font-size:11px;letter-spacing:.12em}
.section{display:grid;gap:8px}
.section h2{margin:0;font-size:15px}
.note{font-size:13px;color:var(--muted);margin:0}
footer{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}

/* 목록 */
.search input{width:100%;box-sizing:border-box;font:inherit;font-size:16px;padding:13px 18px;border-radius:999px;border:0;background:var(--surface);color:var(--ink);box-shadow:0 0 0 1px var(--line)}
.search input:focus{box-shadow:0 0 0 2px var(--accent);outline:none}
.items{display:grid;background:var(--surface);border-radius:16px;overflow:hidden;box-shadow:0 0 0 1px var(--line)}
.item{display:grid;grid-template-columns:1fr auto;gap:2px 12px;align-items:center;text-decoration:none;color:var(--ink);padding:12px 16px}
.item+.item{border-top:1px solid var(--line)}
.item b{font-size:15px} .item .en{font-size:12px;color:var(--muted)}
.item .ks{font-size:12px;font-weight:700;color:var(--muted);text-align:right;white-space:nowrap}
.count{font-size:13px;color:var(--muted)}

@media (max-width:620px){
  .hero .in{grid-template-columns:1fr;padding:16px 16px 40px;gap:14px}
}

/* 분류 필터 (지니워십 모든 곡) */
.filters{display:grid;gap:10px;background:var(--surface);border-radius:16px;padding:14px;box-shadow:0 0 0 1px var(--line)}
.frow{display:grid;grid-template-columns:52px 1fr;gap:8px;align-items:start}
.flab{font-size:13px;font-weight:900;padding-top:6px}
.chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:2px;min-width:0;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{font:inherit;font-size:13px;font-weight:700;white-space:nowrap;padding:6px 11px;border-radius:999px;border:0;background:var(--chip);color:var(--ink);cursor:pointer;display:inline-flex;gap:5px;align-items:center}
.chip .n{font-size:11px;font-weight:500;color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--brand);color:#fff}
.chip[aria-pressed="true"] .n{color:#fff;opacity:.85}
.item .mini{display:flex;flex-wrap:wrap;gap:4px;margin-top:3px}
.item .mini span{font-size:11px;font-weight:700;color:var(--accent)}
/* 곡 페이지 상단 분류 */
.hero .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.hero .tag{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:rgba(255,106,148,.85);color:#fff;text-decoration:none}
.hero .tag.kind{background:#fff;color:#1b1a1c}