/* Layout: mạng lưới kênh Lumen — tranh sơn dầu làm nhịp, chữ serif nghiêng làm giọng, mỗi kênh một "ô kính" */
:root{
  --bg:#f7f1e6; --paper:#fffaf1; --ink:#14203f; --ink-soft:#4b4a52; --gold:#a8802f; --gold-soft:#e9d6a8; --line:#e2d6bf;
  --night:#0e1a36; --on-night:#f6efe0;
  --serif:"Palatino Linotype","Book Antiqua",Palatino,"EB Garamond",Georgia,serif;
  --sans:"Be Vietnam Pro","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c1529; --paper:#121e38; --ink:#f3ead8; --ink-soft:#b9b2a2; --gold:#d9b25e; --gold-soft:#3a3420; --line:#24314f;
  --night:#060d1f; --on-night:#f6efe0; color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0c1529; --paper:#121e38; --ink:#f3ead8; --ink-soft:#b9b2a2; --gold:#d9b25e; --gold-soft:#3a3420; --line:#24314f; --night:#060d1f; --on-night:#f6efe0; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.65}
a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.15;text-wrap:balance;margin:0}
.eyebrow{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);font-weight:500}

/* header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:24px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{height:44px;width:auto}
.brand b{display:block;font-family:var(--serif);font-style:italic;font-size:1.5rem;line-height:1}
.brand small{display:block;font-family:var(--serif);font-style:italic;font-size:.82rem;color:var(--ink-soft);margin-top:2px}
nav{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap}
nav a{text-decoration:none;font-size:.92rem;color:var(--ink-soft)}
nav a:hover,nav a:focus-visible{color:var(--gold)}
.lang{display:flex;gap:4px;border:1px solid var(--line);border-radius:99px;padding:3px}
.lang button{border:0;background:none;color:var(--ink-soft);font:500 .75rem var(--sans);padding:4px 9px;border-radius:99px;cursor:pointer}
.lang button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--night);color:var(--on-night)}
.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:75% 30%}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,18,40,.92) 0%,rgba(10,18,40,.55) 45%,rgba(10,18,40,0) 75%)}
.hero .wrap{position:relative;z-index:1;padding-block:96px 88px}
.hero h1{font-style:italic;font-size:clamp(2.6rem,6vw,4.6rem);max-width:12ch}
.hero p{max-width:46ch;color:#e8dcc4;font-size:1.08rem;margin:18px 0 28px}
.hero .eyebrow{color:#e7c47a}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:99px;text-decoration:none;font-weight:500;font-size:.95rem;border:1px solid transparent}
.btn.gold{background:#d9b25e;color:#14203f}
.btn.ghost{border-color:rgba(246,239,224,.5);color:var(--on-night)}
.btn:focus-visible{outline:2px solid #e7c47a;outline-offset:3px}

section{padding-block:72px}
.head{display:flex;align-items:end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.head h2{font-size:clamp(1.8rem,3.4vw,2.6rem)}
.head p{max-width:52ch;color:var(--ink-soft);margin:6px 0 0}

/* channels */
.channels{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.ch{position:relative;border-radius:18px;overflow:hidden;min-height:340px;display:flex;flex-direction:column;justify-content:flex-end;color:var(--on-night);text-decoration:none;background:var(--night)}
.ch img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s ease}
.ch::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,14,32,0) 30%,rgba(8,14,32,.9) 100%)}
.ch:hover img{transform:scale(1.04)}
.ch .in{position:relative;z-index:1;padding:20px}
.ch .flag{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#e7c47a}
.ch h3{font-style:italic;font-size:1.65rem;margin:4px 0 6px}
.ch p{margin:0;font-size:.9rem;color:#ddd2bc}
.ch .tag{position:absolute;top:14px;right:14px;z-index:1;font-size:.72rem;padding:4px 10px;border-radius:99px;background:rgba(246,239,224,.9);color:#14203f;font-weight:500}
.ch.soon img{filter:grayscale(.6) brightness(.6)}

/* songs */
.songs{display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:start}
.feature{background:var(--paper);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.feature .pic{aspect-ratio:16/9;position:relative;background:var(--night)}
.feature .pic img{width:100%;height:100%;object-fit:cover}
.play{position:absolute;left:20px;bottom:20px;width:64px;height:64px;border-radius:50%;background:#d9b25e;display:grid;place-items:center;color:#14203f;text-decoration:none;box-shadow:0 8px 30px rgba(0,0,0,.35)}
.feature .body{padding:22px 24px 26px}
.feature h3{font-style:italic;font-size:2rem}
.meta{color:var(--ink-soft);font-size:.9rem}
.lyric{font-family:var(--serif);font-style:italic;font-size:1.15rem;border-left:2px solid var(--gold);padding-left:14px;margin:16px 0;color:var(--ink)}
.list{display:flex;flex-direction:column;gap:12px}
.row{display:grid;grid-template-columns:84px 1fr;gap:14px;align-items:center;padding:10px;border-radius:14px;text-decoration:none;border:1px solid transparent}
.row:hover{background:var(--paper);border-color:var(--line)}
.row img{width:84px;height:84px;object-fit:cover;border-radius:10px}
.row b{font-family:var(--serif);font-style:italic;font-size:1.2rem;display:block}
.row span{color:var(--ink-soft);font-size:.85rem}
.chip{display:inline-block;font-size:.72rem;padding:2px 8px;border-radius:99px;background:var(--gold-soft);color:var(--ink);margin-right:6px}

/* posts */
.posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.post{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:10px}
.post .date{font-size:.8rem;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.post h3{font-size:1.35rem}
.post p{margin:0;color:var(--ink-soft);font-size:.95rem}
.post .ref{font-family:var(--serif);font-style:italic;color:var(--gold)}
.post a{margin-top:auto;font-weight:500;color:var(--gold);text-decoration:none}

/* commission */
.commission{background:var(--night);color:var(--on-night);border-radius:24px;display:grid;grid-template-columns:1fr 1fr;overflow:hidden}
.commission .txt{padding:44px}
.commission h2{font-style:italic;font-size:clamp(1.8rem,3.2vw,2.5rem)}
.commission ul{list-style:none;padding:0;margin:18px 0 26px;display:grid;gap:8px;color:#e1d6be}
.commission li::before{content:"♪";color:#e7c47a;margin-right:10px}
.commission img{width:100%;height:100%;object-fit:cover;min-height:280px}

footer{border-top:1px solid var(--line);padding-block:40px;color:var(--ink-soft);font-size:.9rem}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.foot a{text-decoration:none}
.note{margin-top:18px;font-size:.78rem;opacity:.8}

@media (max-width:820px){
  nav{display:none}
  .songs,.commission{grid-template-columns:1fr}
  .commission .txt{padding:28px}
  .hero .wrap{padding-block:72px 64px}
}
@media (prefers-reduced-motion:reduce){.ch img{transition:none}}

/* ---- trang con ---- */
.page-hero{position:relative;overflow:hidden;background:var(--night);color:var(--on-night)}
.page-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 30%;opacity:.55}
.page-hero .wrap{position:relative;padding-block:72px 56px}
.page-hero h1{font-style:italic;font-size:clamp(2.2rem,5vw,3.6rem)}
.page-hero p{max-width:56ch;color:#e8dcc4;margin:12px 0 0}
.crumb{font-size:.85rem;color:#e7c47a;text-decoration:none}
.prose{max-width:68ch;font-size:1.08rem}
.prose h2{font-size:1.6rem;margin:1.6em 0 .4em}
.prose blockquote{margin:1.2em 0;padding-left:18px;border-left:2px solid var(--gold);font-family:var(--serif);font-style:italic;font-size:1.2rem}
.video{aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:var(--night);display:grid;place-items:center;color:var(--on-night);max-width:100%}
.video iframe{width:100%;height:100%;border:0}
.lyrics{columns:2 300px;column-gap:40px}
.lyrics .blk{break-inside:avoid;margin-bottom:22px}
.lyrics .lab{font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:500}
.lyrics p{font-family:var(--serif);font-size:1.15rem;margin:.3em 0 0;line-height:1.55}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.gallery img{border-radius:12px;aspect-ratio:16/9;object-fit:cover;width:100%}
.split{display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.cardgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.scard{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column}
.scard img{aspect-ratio:16/9;object-fit:cover;width:100%}
.scard .in{padding:16px 18px 20px}
.scard b{font-family:var(--serif);font-style:italic;font-size:1.35rem;display:block;margin:6px 0 2px}
.scard span{color:var(--ink-soft);font-size:.88rem}
.links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.links a{font-size:.85rem;padding:6px 12px;border:1px solid var(--line);border-radius:99px;text-decoration:none}
.copy{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:99px;padding:6px 12px;cursor:pointer;font:500 .85rem var(--sans)}

.lang a{color:var(--ink-soft);font:500 .75rem var(--sans);padding:4px 9px;border-radius:99px;text-decoration:none}
.lang a[aria-current]{background:var(--ink);color:var(--bg)}