:root{
  --bg:#0c0c0e; --bg2:#141417; --card:#18181c; --line:#2a2a31;
  --text:#f3f1ec; --muted:#9b978f; --accent:#ff7a1a; --accent-2:#ffb066;
  --side:200px;
  --display:"Anton", Impact, "Arial Narrow", sans-serif;
  --body:"Be Vietnam Pro", system-ui, sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:400 16px/1.6 var(--body);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
video,img{display:block;max-width:100%}
.display{font-family:var(--display);font-weight:400;line-height:.92;letter-spacing:.005em;text-transform:uppercase}
.display em{font-style:normal;color:var(--accent)}
.display.sm{font-size:clamp(28px,3.4vw,44px)}
.eyebrow{font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-2)}
.eyebrow.dim{color:var(--muted)}
.muted{color:var(--muted)}
.u{border-bottom:2px solid var(--accent)}

/* ---------- thanh bên ---------- */
.side{position:fixed;inset:0 auto 0 0;width:var(--side);padding:22px 18px;border-right:1px solid var(--line);
  background:var(--bg);display:flex;flex-direction:column;gap:36px;z-index:20}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:14px}
.brand-mark{background:var(--accent);color:#111;font-family:var(--display);font-size:15px;padding:5px 7px;border-radius:7px}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-nav a{display:flex;gap:12px;padding:8px 10px;border-radius:8px;font-size:14px;color:#cfccc5;transition:.2s}
.side-nav a i{font-style:normal;font-size:11px;color:var(--muted);width:16px;padding-top:2px}
.side-nav a:hover,.side-nav a.on{background:#24201c;color:#fff}
.side-nav a.on i{color:var(--accent)}
.side-foot{margin-top:auto;font-size:13px;display:flex;flex-direction:column;gap:4px}
.side-foot span{color:var(--muted);font-size:12px}
.fab{position:fixed;right:22px;bottom:22px;z-index:30;background:var(--accent);color:#111;font-weight:700;
  padding:13px 22px;border-radius:999px;box-shadow:0 10px 30px #ff7a1a55}

main{margin-left:var(--side)}
section{padding:90px clamp(20px,5vw,72px)}

/* ---------- hero ---------- */
.hero{min-height:100vh;display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center;
  background:radial-gradient(60% 50% at 20% 20%,#3a1d0a 0%,transparent 70%),radial-gradient(50% 40% at 85% 85%,#2a1408 0%,transparent 70%)}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;padding:7px 14px;border:1px solid var(--line);border-radius:999px;background:#ffffff08}
.pill b{width:8px;height:8px;border-radius:50%;background:#3ddc84;box-shadow:0 0 10px #3ddc84}
.kicker{margin:26px 0 12px;color:var(--muted);font-size:14px}
.hero h1{font-size:clamp(64px,10vw,150px)}
.lead{font-size:clamp(17px,1.5vw,20px);max-width:560px;margin:24px 0 30px;color:#d8d4cc}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{background:var(--accent);color:#111;font-weight:700;padding:14px 24px;border-radius:999px;transition:.2s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.stats{display:flex;gap:44px;margin-top:56px;padding-top:26px;border-top:1px solid var(--line);flex-wrap:wrap}
.stats dt{font-family:var(--display);font-size:46px;line-height:1;color:var(--accent)}
.stats dd{font-size:13px;color:var(--muted);margin-top:6px}
.hero-reel{display:flex;flex-direction:column;align-items:center;gap:12px}
.cap{font-size:12px;color:var(--muted);letter-spacing:.15em;text-transform:uppercase}

/* khung điện thoại dọc */
.phone{position:relative;width:min(100%,320px);aspect-ratio:9/16;border-radius:26px;overflow:hidden;background:#000;
  border:6px solid #222;box-shadow:0 30px 80px #0009}
.phone video{width:100%;height:100%;object-fit:cover}
.sound{position:absolute;right:10px;bottom:10px;font-size:12px;font-weight:600;padding:7px 12px;border-radius:999px;
  background:#000a;backdrop-filter:blur(6px);border:1px solid #ffffff22}
.sound.on{background:var(--accent);color:#111}

/* ---------- khối mở chương ---------- */
.plate{position:relative;overflow:hidden;background:var(--accent);color:#140b04;min-height:72vh;
  display:flex;flex-direction:column;justify-content:center}
.plate .eyebrow{color:#3a1c06}
.plate h2{font-size:clamp(72px,13vw,190px);margin:16px 0 22px;position:relative;z-index:1}
.plate p:not(.eyebrow){max-width:520px;font-size:19px;font-weight:500;position:relative;z-index:1}
.big-num{position:absolute;right:-10px;bottom:-60px;font-family:var(--display);font-size:clamp(220px,32vw,440px);
  line-height:1;color:#0000001c;pointer-events:none}

/* ---------- 2 cột mô tả ---------- */
.two{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:start}
.h-sm{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--muted)}
.checks{list-style:none;display:flex;flex-direction:column}
.checks li{padding:14px 0 14px 32px;border-bottom:1px solid var(--line);position:relative}
.checks li::before{content:"✓";position:absolute;left:4px;color:var(--accent);font-weight:700}
.note-big .display{color:var(--accent);margin-bottom:12px}

/* ---------- khu loại video (EDIT) ---------- */
.types{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start;padding-top:20px}
.types-left{position:sticky;top:40px}
.counter{font-family:var(--display);font-size:46px;margin:10px 0 18px;line-height:1}
.counter b{color:var(--accent);font-weight:400}
.counter span{font-size:26px}
.tabs{display:flex;flex-direction:column;gap:6px;border-bottom:1px solid var(--line);padding-bottom:20px}
.tab{text-align:left;padding:12px 16px;border-radius:10px;color:#cfccc5;font-weight:500;transition:.2s;display:flex;justify-content:space-between}
.tab small{color:var(--muted)}
.tab:hover{background:#1e1e23}
.tab.on{background:var(--accent);color:#111}
.tab.on small{color:#3a1c06}
.clients-line{margin-top:18px;font-size:14px;color:var(--muted)}
.clients-line b{color:var(--text);font-weight:600}

.type-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px}
.type-card h3{font-size:clamp(34px,4vw,54px)}
.type-card .desc{color:#cfccc5;margin:12px 0 22px;max-width:620px}
.stage{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}
.stage .phone{width:300px}
.side-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.feat-meta{margin-top:12px;font-size:14px}
.feat-meta b{display:block}
.feat-meta span{color:var(--muted);font-size:13px}

/* thẻ video nhỏ */
.vcard{position:relative;border-radius:14px;overflow:hidden;background:#000;border:1px solid var(--line);
  aspect-ratio:9/16;cursor:pointer;transition:transform .2s,border-color .2s}
.vcard.h{aspect-ratio:16/9}
.vcard img,.vcard video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.vcard video{opacity:0;transition:opacity .25s}
.vcard:hover video.ready{opacity:1}
.vcard:hover{transform:translateY(-3px);border-color:var(--accent)}
.vcard.on{outline:2px solid var(--accent);outline-offset:2px}
.vcard .t{position:absolute;left:0;right:0;bottom:0;padding:28px 10px 9px;font-size:12px;font-weight:600;line-height:1.3;
  background:linear-gradient(transparent,#000d)}
.vcard .t span{display:block;color:var(--accent-2);font-weight:500;font-size:11px}
.vcard .dur{position:absolute;top:8px;right:8px;font-size:11px;background:#000a;padding:2px 7px;border-radius:6px}
.more{border-radius:14px;border:1px dashed #ff7a1a88;background:#ff7a1a14;color:var(--accent-2);display:flex;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;aspect-ratio:9/16;transition:.2s}
.more.h{aspect-ratio:16/9}
.more b{font-family:var(--display);font-size:40px;font-weight:400;line-height:1}
.more:hover{background:#ff7a1a2a}

/* ---------- thumbnail + marquee ---------- */
.thumbs-sec{padding-top:30px;padding-bottom:30px}
.thumb-strip{display:flex;gap:12px;overflow-x:auto;padding:16px 0 10px;scrollbar-width:thin}
.thumb-strip figure{flex:0 0 150px}
.thumb-strip img{border-radius:12px;aspect-ratio:9/16;object-fit:cover;width:100%;border:1px solid var(--line)}
.thumb-strip figcaption{font-size:11px;color:var(--muted);margin-top:6px}
.marquee{padding:40px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.marquee .eyebrow{padding:0 clamp(20px,5vw,72px);margin-bottom:18px;color:var(--muted)}
.marquee-track{display:flex;gap:40px;width:max-content;animation:run 40s linear infinite;
  font-family:var(--display);font-size:38px;text-transform:uppercase;white-space:nowrap}
.marquee-track span::after{content:"+";color:var(--accent);margin-left:40px}
@keyframes run{to{transform:translateX(-50%)}}

/* ---------- QUAY: các thẻ dự án ---------- */
.events{display:flex;flex-direction:column;gap:22px;padding-top:10px}
.ev{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px}
.ev-head{display:flex;gap:18px;align-items:baseline;margin-bottom:6px}
.ev-head i{font-style:normal;font-family:var(--display);font-size:30px;color:var(--accent)}
.ev-head h3{font-size:clamp(30px,3.4vw,46px)}
.ev .desc{color:#cfccc5;margin-bottom:18px;max-width:720px}
.ev .tags{font-size:13px;color:var(--muted);margin-bottom:18px}
.ev .tags b{color:var(--text);font-weight:600}
.wide-player{position:relative;border-radius:16px;overflow:hidden;background:#000;aspect-ratio:16/9;border:1px solid var(--line)}
.wide-player video{width:100%;height:100%;object-fit:cover}
.wide-player .label{position:absolute;left:14px;top:14px;font-size:12px;font-weight:600;background:#000a;padding:6px 11px;border-radius:999px}
.row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.row.v{grid-template-columns:repeat(6,1fr);margin-top:0}

/* ---------- liên hệ ---------- */
.close{min-height:90vh;display:flex;flex-direction:column;justify-content:center;
  background:radial-gradient(60% 60% at 30% 40%,#3a1d0a 0%,transparent 70%)}
.close h2{font-size:clamp(64px,10vw,140px);margin:14px 0 10px}
.phone-big{font-family:var(--display);font-size:clamp(46px,7vw,92px);border-bottom:4px solid var(--accent);width:max-content;max-width:100%;margin:10px 0 34px}
.contact-cols{display:flex;gap:56px;flex-wrap:wrap}
.contact-cols span{display:block;font-size:12px;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.close footer{margin-top:80px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:50;background:#000c;backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;padding:24px}
.modal[hidden]{display:none}
.modal-box{position:relative;max-height:92vh;display:flex;flex-direction:column;gap:12px}
.modal-box video{max-height:82vh;max-width:min(92vw,1280px);border-radius:14px;background:#000}
.modal-meta b{display:block}
.modal-meta span{font-size:13px;color:var(--muted)}
.modal-box.wide{background:var(--bg2);border:1px solid var(--line);border-radius:20px;padding:28px;width:min(1200px,94vw);overflow:auto}
.modal-box.wide h3{margin-bottom:20px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.grid.h{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.x{position:absolute;top:-14px;right:-14px;width:38px;height:38px;border-radius:50%;background:var(--accent);color:#111;font-size:22px;font-weight:700;z-index:2}
.modal-box.wide .x{top:14px;right:14px}

/* ---------- điện thoại ---------- */
@media (max-width:1100px){
  .types{grid-template-columns:1fr}
  .types-left{position:static}
  .stage{grid-template-columns:1fr}
  .stage .phone{width:min(100%,300px);margin:auto}
  .side-list{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:860px){
  :root{--side:0px}
  .side{inset:auto 0 0 0;width:auto;height:auto;flex-direction:row;padding:8px 10px;border-right:0;border-top:1px solid var(--line);gap:0}
  .brand,.side-foot{display:none}
  .side-nav{flex-direction:row;justify-content:space-around;width:100%}
  .fab{bottom:70px;right:14px}
  section{padding:64px 16px}
  .hero{grid-template-columns:1fr;padding-top:40px}
  .two{grid-template-columns:1fr;gap:28px}
  .side-list{grid-template-columns:repeat(2,1fr)}
  .row{grid-template-columns:repeat(2,1fr)}
  .row.v{grid-template-columns:repeat(3,1fr)}
  .type-card,.ev{padding:18px}
  .stats{gap:28px}
}