:root{
  --bg:#0c0e0f; --panel:#000; --ink:#fff; --mute:#9aa3a8; --line:rgba(255,255,255,.14);
  --acc:#35e0cc; --blue:#3a97d0;
  --f:"Archivo","Arial Black","Segoe UI",system-ui,sans-serif;
  --pad:clamp(20px,3.6vw,58px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.menu-open{overflow:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
::selection{background:var(--acc);color:#000}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* kiểu chữ */
.d{font-weight:900;text-transform:uppercase;font-variation-settings:"wdth" 125;letter-spacing:-.005em}
.c{font-weight:700;text-transform:uppercase;font-variation-settings:"wdth" 62;letter-spacing:.005em}
.k{font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:.32em;color:var(--mute);font-variation-settings:"wdth" 110}

/* hạt phim */
.noise{position:fixed;inset:0;z-index:200;pointer-events:none;opacity:.07;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}

/* thanh trên cùng */
.top{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;justify-content:space-between;align-items:center;padding:20px var(--pad);pointer-events:none}
.top::before{content:"";position:absolute;inset:0 0 -30px;background:linear-gradient(rgba(0,0,0,.6),transparent);z-index:-1}
.top>*{pointer-events:auto}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:46px;width:auto}
.brand b{display:block;font-size:17px;line-height:1;font-variation-settings:"wdth" 125;font-weight:900;letter-spacing:.02em}
.brand small{display:block;margin-top:5px;font-size:9px;letter-spacing:.34em;color:#c9d1d4;font-weight:600}
.menu-btn{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;padding:10px 4px;font-weight:800;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-variation-settings:"wdth" 118}
.dots{width:14px;height:14px;display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.dots i{background:#fff;border-radius:50%;transition:transform .3s}
.menu-btn:hover .dots i{transform:scale(1.5)}

/* HOME: lưới ảnh chạy theo chuột */
.home{position:relative;height:100vh;height:100svh;overflow:hidden;background:#000}
.wall{position:absolute;inset:-4.5vh -3.5vw;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(3,1fr);gap:14px;will-change:transform}
.tile{position:relative;display:block;overflow:hidden;border-radius:12px;background:#111618;animation:tin 1s both cubic-bezier(.23,1,.32,1)}
@keyframes tin{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.frame{position:absolute;inset:0;overflow:hidden;border-radius:12px;background:linear-gradient(135deg,#0d1b2a,#16505a);transition:inset .6s cubic-bezier(.23,1,.32,1)}
.frame img{width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.23,1,.32,1),filter .6s}
.frame .ini{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:clamp(34px,5vw,70px);color:rgba(255,255,255,.25)}
.frame .t{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:18px;background:rgba(0,0,0,.5);opacity:0;transition:opacity .45s;font-size:clamp(26px,3.1vw,48px);line-height:1.02}
.tile:hover .frame{inset:14px}
.tile:hover .frame img{transform:scale(1.08)}
.tile:hover .t,.tile:focus-visible .t{opacity:1}
.viewall{position:absolute;left:50%;bottom:0;transform:translateX(-50%);z-index:5;display:flex;align-items:center;gap:12px;background:rgba(0,0,0,.92);padding:22px 36px;font-weight:800;font-size:12px;letter-spacing:.05em;text-transform:uppercase;font-variation-settings:"wdth" 118;transition:color .4s,background-color .6s}
.viewall:hover{color:#000;background:var(--acc)}
.viewall:hover .dots i{background:#000}

/* băng chữ chạy */
.marquee{background:var(--acc);color:#04120f;overflow:hidden;white-space:nowrap}
.marquee .track{display:inline-flex;animation:mq 34s linear infinite}
.marquee span{padding:16px 0;font-size:clamp(15px,1.7vw,22px);display:inline-flex;align-items:center}
.marquee span::after{content:"◆";font-size:.55em;margin:0 clamp(18px,2.4vw,34px)}
@keyframes mq{to{transform:translateX(-50%)}}

/* menu trượt bên phải */
.scrim{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.6);opacity:0;pointer-events:none;transition:opacity .5s}
.panel{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(82vw,1000px);background:var(--panel);transform:translateX(102%);transition:transform .7s cubic-bezier(.23,1,.32,1);display:flex;flex-direction:column;padding:120px clamp(24px,5vw,72px) 0;visibility:hidden}
body.menu-open .panel{transform:none;visibility:visible}
body.menu-open .scrim{opacity:1;pointer-events:auto}
.panel nav a{display:block;font-size:clamp(20px,2.4vw,30px);line-height:1.2;padding:15px 0;font-weight:800;letter-spacing:.02em;border-bottom:1px solid var(--line);transition:color .4s,padding-left .5s cubic-bezier(.23,1,.32,1)}
.panel nav a:hover{color:var(--acc);padding-left:14px}
.panel nav a span{font-size:.5em;letter-spacing:.2em;color:var(--mute);margin-right:14px;font-weight:700}
.panel .soc{margin-top:auto;display:flex;gap:26px;padding:34px 0;flex-wrap:wrap;font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#c9d1d4}
.panel .soc a:hover{color:var(--acc)}
.panel .marquee{margin:0 calc(-1 * clamp(24px,5vw,72px))}

/* khối chung */
.wrap{padding:0 var(--pad)}
section{position:relative}
.rv{opacity:0;transform:translateY(40px);transition:opacity 1s ease,transform 1s cubic-bezier(.23,1,.32,1)}
.rv.in{opacity:1;transform:none}

/* DỰ ÁN */
.work-hero{position:relative;min-height:70vh;background:#000;display:flex;align-items:center;justify-content:center;overflow:hidden;text-align:center}
.work-hero .ttl{position:relative;z-index:2;padding:130px 20px 90px}
.work-hero h2{font-size:clamp(42px,8.6vw,132px);line-height:1.04}
.work-hero p{margin-top:26px}
.filters{display:flex;gap:26px;flex-wrap:wrap;justify-content:center;padding:70px 0 10px}
.filters button{background:none;border:0;border-bottom:1px solid transparent;cursor:pointer;padding:5px 0;color:var(--mute);font-weight:800;font-size:12px;letter-spacing:.14em;text-transform:uppercase;transition:color .4s,border-color .4s}
.filters button:hover,.filters button.on{color:#fff;border-color:var(--acc)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:72px 34px;padding:56px var(--pad) 40px}
.card{display:block}
.card.hide{display:none}
.thumb{position:relative;aspect-ratio:3/2;overflow:hidden;border-radius:14px;background:linear-gradient(135deg,#0d1b2a,#16505a)}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.23,1,.32,1)}
.thumb .ini{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:clamp(40px,6vw,84px);color:rgba(255,255,255,.22)}
.card:hover .thumb img{transform:scale(1.05)}
.cap{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 0 16px;border-bottom:1px solid var(--line)}
.cap h3{font-size:clamp(15px,1.6vw,21px);line-height:1.2;transition:color .4s cubic-bezier(.23,1,.32,1)}
.cap small{display:block;margin-top:6px;font-size:10px;letter-spacing:.24em;color:var(--mute);font-weight:700;text-transform:uppercase}
.cap .arr{font-size:18px;transition:transform .4s,color .4s}
.card:hover h3,.card:hover .arr{color:var(--acc)}
.card:hover .arr{transform:translate(4px,-4px)}
.more{text-align:center;padding:30px 0 100px}
.btn{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--line);padding:18px 30px;font-weight:800;font-size:12px;letter-spacing:.1em;text-transform:uppercase;transition:background-color .5s,color .4s,border-color .4s}
.btn:hover{background:var(--acc);color:#000;border-color:var(--acc)}


/* GIỚI THIỆU */
.bio{padding:100px var(--pad) 40px;text-align:center}
.bio .big{max-width:1050px;margin:26px auto 0;font-size:clamp(20px,2.7vw,40px);line-height:1.32;text-shadow:0 2px 14px rgba(0,0,0,.7)}
.bio .txt{max-width:760px;margin:44px auto 0;color:#c4ccd0;font-size:17px;text-align:left}
.bio .txt p+p{margin-top:18px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:34px;margin:90px auto 0;max-width:1100px;border-top:1px solid var(--line);padding-top:34px;text-align:left}
.facts h4{margin-bottom:10px}
.facts p{color:#d6dde0;font-size:15px}
.vm{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin:70px auto 0;max-width:1100px;text-align:left}
.vm div{border-top:2px solid var(--acc);padding-top:18px}
.vm b{display:block;font-size:19px;margin-bottom:10px}
.vm span{color:#b9c2c6;font-size:15px}

/* LIÊN HỆ */
.contact{padding:120px var(--pad) 90px}
.contact h2{font-size:clamp(46px,11vw,170px);line-height:.98}
.big-links{margin-top:60px;border-top:1px solid var(--line)}
.big-links a{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);font-size:clamp(22px,4.6vw,64px);line-height:1.1;transition:color .4s,padding-left .5s cubic-bezier(.23,1,.32,1)}
.big-links a:hover{color:var(--acc);padding-left:16px}
.big-links small{font-size:11px;letter-spacing:.3em;color:var(--mute);font-weight:700;text-transform:uppercase;align-self:flex-start;padding-top:8px}
.socials{display:flex;gap:30px;flex-wrap:wrap;margin-top:40px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.socials a{border-bottom:1px solid transparent;transition:color .4s,border-color .4s}
.socials a:hover{color:var(--acc);border-color:var(--acc)}
footer{padding:50px var(--pad) 46px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap;color:var(--mute);font-size:12px;letter-spacing:.06em;text-transform:uppercase}
footer img{width:150px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .tile{animation:none}
  .marquee .track{animation:none}
  .rv{opacity:1;transform:none;transition:none}
  .panel,.scrim,.frame,.frame img{transition:none}
}
@media (max-width:820px){
  .brand small{display:none}
  .brand img{height:40px}
  .home{height:auto;min-height:100svh}
  .wall{position:static;inset:auto;transform:none!important;grid-template-columns:repeat(2,1fr);grid-template-rows:none;gap:8px;padding:84px 8px 90px}
  .tile{aspect-ratio:3/4}
  .frame .t{opacity:0}
  .viewall{position:fixed;bottom:0;padding:18px 26px;font-size:11px}
  .panel{width:100vw;padding-top:100px}
  .panel nav a{font-size:22px;padding:14px 0}
  .grid{grid-template-columns:1fr;gap:54px}
  .work-hero{min-height:60vh}
  .vm{grid-template-columns:1fr}
}

/* ===== bổ sung v4 ===== */
.work-hero .mosaic{position:absolute;inset:0;display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(2,1fr);gap:6px;padding:6px}
.work-hero .mosaic div{border-radius:10px;overflow:hidden;background:linear-gradient(135deg,#0d1b2a,#16505a)}
.work-hero .mosaic img{width:100%;height:100%;object-fit:cover;transform:scale(1.04)}
.work-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at center,rgba(0,0,0,.55),rgba(0,0,0,.78))}
.work-hero .ttl{z-index:3}
.cap h3{font-size:clamp(14px,1.45vw,19px)}
.card .play{position:absolute;right:14px;bottom:14px;width:40px;height:40px;border-radius:50%;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;font-size:13px;padding-left:3px;backdrop-filter:blur(4px)}
.thumb::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);pointer-events:none}

/* ===== trang dự án ===== */
.p-hero{position:relative;min-height:82vh;display:flex;align-items:flex-end;overflow:hidden;background:linear-gradient(135deg,#0d1b2a,#16505a)}
.p-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.p-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(rgba(0,0,0,.35),rgba(0,0,0,.15) 40%,rgba(0,0,0,.82))}
.p-hero .in{position:relative;z-index:2;padding:140px var(--pad) clamp(36px,6vw,80px);width:100%}
.p-hero h1{font-size:clamp(32px,6.4vw,100px);line-height:1.04;max-width:1500px}
.p-hero .k{color:#e3eaec;margin-bottom:18px}
.meta{display:flex;flex-wrap:wrap;gap:20px 60px;padding:34px var(--pad);border-bottom:1px solid var(--line)}
.meta div small{display:block;font-size:10px;letter-spacing:.28em;color:var(--mute);font-weight:700;text-transform:uppercase;margin-bottom:6px}
.meta div span{font-size:15px;font-weight:600}
.meta a span{border-bottom:1px solid var(--acc)}
.p-body{padding:clamp(40px,6vw,90px) var(--pad) 40px;max-width:1500px;margin:0 auto}
.vbox{position:relative;aspect-ratio:16/9;background:#000 center/cover;border-radius:14px;overflow:hidden;margin:0 auto 26px;max-width:1280px;cursor:pointer;box-shadow:0 0 0 1px rgba(255,255,255,.08)}
.vbox img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.23,1,.32,1),opacity .5s}
.vbox:hover img{transform:scale(1.03)}
.vbox::after{content:"";position:absolute;inset:0;background:rgba(0,0,0,.28);transition:background .4s}
.vbox:hover::after{background:rgba(0,0,0,.12)}
.vbox button{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);width:clamp(64px,8vw,104px);aspect-ratio:1;border-radius:50%;border:0;background:var(--acc);color:#04120f;font-size:clamp(22px,3vw,36px);padding-left:.14em;cursor:pointer;transition:transform .4s cubic-bezier(.23,1,.32,1)}
.vbox:hover button{transform:translate(-50%,-50%) scale(1.1)}
.vbox iframe{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:3}
.vbox .lbl{position:absolute;z-index:2;left:18px;bottom:14px;font-size:11px;letter-spacing:.2em}
.gal{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;align-items:start;margin-top:clamp(30px,5vw,60px)}
.gal a{display:block;border-radius:12px;overflow:hidden;background:#111618;cursor:zoom-in}
.gal a:first-child{grid-column:1/-1}
.gal img{width:100%;height:auto;transition:transform .9s cubic-bezier(.23,1,.32,1)}
.gal a:hover img{transform:scale(1.03)}
.pn{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);margin-top:70px}
.pn a{padding:44px var(--pad);transition:background-color .5s,color .4s}
.pn a+a{border-left:1px solid var(--line);text-align:right}
.pn a:hover{background:var(--acc);color:#000}
.pn small{display:block;font-size:10px;letter-spacing:.3em;color:var(--mute);font-weight:700;text-transform:uppercase;margin-bottom:12px}
.pn a:hover small{color:#000}
.pn b{font-size:clamp(16px,2.2vw,30px);line-height:1.15}
.back{display:inline-flex;margin:0 var(--pad) 0;padding:34px 0 0}
.lb{position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.94);display:none;align-items:center;justify-content:center;padding:30px;cursor:zoom-out}
.lb.on{display:flex}
.lb img{max-width:100%;max-height:100%;border-radius:8px}
.lb span{position:absolute;top:18px;right:24px;font-size:30px;line-height:1}
.soc2{display:flex;gap:26px;flex-wrap:wrap;margin-top:34px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}
.addr{margin-top:30px;color:var(--mute);font-size:14px}
@media (max-width:820px){
  .gal{grid-template-columns:1fr}
  .p-hero{min-height:68vh}
  .work-hero .mosaic{grid-template-columns:repeat(3,1fr)}
  .work-hero .mosaic div:nth-child(n+7){display:none}
  .pn{grid-template-columns:1fr}
  .pn a+a{border-left:0;border-top:1px solid var(--line);text-align:left}
}
@media (prefers-reduced-motion:reduce){.vbox img,.gal img{transition:none}}
.p-hero img,.thumb img,.mosaic img,.frame img,.vbox img{color:transparent;font-size:0}

/* liên hệ cỡ chữ 14px */
.contact{padding:90px var(--pad) 70px}
.contact h2{font-size:14px;line-height:1.4;letter-spacing:.3em}
.big-links{margin-top:26px}
.big-links a{font-size:14px;padding:18px 0;line-height:1.4;font-weight:700}
.big-links small{font-size:10px;padding-top:2px}
.yl{max-width:1280px;margin:-10px auto 34px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--mute)}
.yl a:hover{color:var(--acc)}

/* popup video */
.vmodal{position:fixed;inset:0;z-index:400;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;padding:clamp(14px,4vw,60px)}
.vmodal.on{display:flex}
.vmodal .vf{width:min(1200px,100%);aspect-ratio:16/9;max-height:100%;background:#000;border-radius:14px;overflow:hidden;box-shadow:0 20px 80px rgba(0,0,0,.6)}
.vmodal iframe{width:100%;height:100%;border:0;display:block}
.vmodal .vx{position:absolute;top:14px;right:18px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:rgba(0,0,0,.6);color:#fff;font-size:28px;line-height:1;cursor:pointer;transition:background-color .3s,color .3s}
.vmodal .vx:hover{background:var(--acc);color:#000}
body.vopen{overflow:hidden}

.vnote{height:100%;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:14px;padding:clamp(20px,5vw,60px);background:#111618}
.vnote b{font-size:clamp(18px,2.2vw,28px);font-weight:800}
.vnote p{color:#c4ccd0;max-width:560px;font-size:15px}

#work{padding-top:clamp(70px,9vw,120px)}
#work .filters{padding-top:30px}

/* ảnh nằm trên chữ viết tắt */
.frame img{position:relative;z-index:1}
.frame .t{z-index:2}