/* Minh Vy - giao diện tối sang trọng, điểm nhấn đỏ và be theo logo */
:root{
  --bg:#0b0a0a; --bg2:#121010; --panel:#171413; --line:rgba(243,234,216,.12);
  --ink:#f3ead8; --mute:#b8ad9a; --dim:#8a8070;
  --red:#d23a30; --red2:#e5493e; --red3:#a51f1a; --beige:#f3ead8;
  --ease:cubic-bezier(.16,1,.3,1);
  --font:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --serif:"Playfair Display",Georgia,serif;
  --wrap:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3{line-height:1.12;font-weight:800;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--red2);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:12px;top:-60px;background:var(--beige);color:#111;padding:10px 16px;border-radius:10px;z-index:1000;font-weight:600}
.skip:focus{top:12px}
.wrap{width:min(var(--wrap),100% - 40px);margin-inline:auto}
.center{text-align:center}

/* ---------- Nút ---------- */
.btn{display:inline-grid;place-items:center;position:relative;overflow:hidden;color:#fff;font-weight:600;font-size:15px;
  min-height:46px;padding:0 24px;border-radius:14px;white-space:nowrap;cursor:pointer;
  background:linear-gradient(to top,#ffb7a8 1px,#ff9585 3px,#f2604f 5px,#d83a2d 8px,#b3281f 11px,#7d1d17 15px,#3b1513 21px,#1d1011 29px,#130c0d 36px,#130c0d 100%);
  box-shadow:inset 0 3px 3px -2px rgba(255,200,190,.12),inset 1px 0 0 rgba(255,255,255,.09),inset -1px 0 0 rgba(255,255,255,.09),0 1px 0 rgba(255,170,155,.3),0 0 8px rgba(210,58,48,.12),0 2px 5px -3px rgba(255,110,90,.45);
  transition:transform .25s,filter .25s,box-shadow .25s}
.btn::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,215,205,.6),rgba(255,215,205,0) 13px),linear-gradient(270deg,rgba(255,215,205,.6),rgba(255,215,205,0) 13px);
  -webkit-mask:linear-gradient(to top,#000 0,#000 6px,rgba(0,0,0,.4) 12px,rgba(0,0,0,.15) 18px,rgba(0,0,0,.02) 30px);mask:linear-gradient(to top,#000 0,#000 6px,rgba(0,0,0,.4) 12px,rgba(0,0,0,.15) 18px,rgba(0,0,0,.02) 30px)}
.btn span{position:relative;z-index:2;display:inline-flex;align-items:center;gap:8px;line-height:1;text-shadow:0 1px 2px rgba(30,0,0,.5)}
.btn svg{width:17px;height:17px}
.btn:hover{transform:translateY(-1px);filter:brightness(1.12)}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:13px}
.btn--lg{min-height:54px;padding:0 30px;font-size:16px;border-radius:15px}
.btn--ghost{background:linear-gradient(to top,rgba(243,234,216,.2) 1px,rgba(243,234,216,.08) 12px,rgba(18,14,14,.9) 30px,rgba(18,14,14,.9) 100%);box-shadow:inset 0 0 0 1px rgba(243,234,216,.22)}
.btn--ghost::after{display:none}

/* ---------- Thanh điều hướng ---------- */
.nav{position:fixed;z-index:400;left:50%;top:12px;transform:translateX(-50%);width:min(980px,100% - 24px);height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 14px 0 20px;border-radius:32px;
  background:rgba(14,12,12,.55);border:1px solid rgba(243,234,216,.13);
  -webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.nav__brand{display:inline-flex;align-items:center;gap:11px}
.mark{width:32px;height:32px;flex:none;filter:drop-shadow(0 2px 8px rgba(210,58,48,.45))}
.nav__word{display:flex;flex-direction:column;line-height:1}
.nav__word small{font-size:7.5px;letter-spacing:.2em;font-weight:600;color:var(--mute);margin-bottom:4px}
.nav__word b{font-size:21px;font-weight:900;letter-spacing:.02em}
.nav__menu{display:flex;align-items:center;gap:26px}
.nav__links{display:flex;gap:4px}
.nav__links a{padding:8px 12px;border-radius:12px;font-size:14px;color:rgba(243,234,216,.82);transition:color .2s,background .2s}
.nav__links a:hover{color:#fff;background:rgba(243,234,216,.07)}
.nav__links a[aria-current]{color:#fff;background:rgba(210,58,48,.2)}
.nav__actions{display:flex;align-items:center;gap:10px}
.lang{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--mute);border:1px solid var(--line);border-radius:10px;padding:6px 10px;transition:color .2s,border-color .2s}
.lang:hover{color:#fff;border-color:rgba(243,234,216,.4)}
.theme{display:grid;place-items:center;width:36px;height:34px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--mute);cursor:pointer;transition:color .2s,border-color .2s,background .2s}
.theme:hover{color:#fff;border-color:rgba(243,234,216,.4)}
.theme svg{width:18px;height:18px}
.theme__sun{display:none}
html[data-theme=light] .theme__sun{display:block}
html[data-theme=light] .theme__moon{display:none}
.burger{display:none;place-content:center;gap:4px;width:42px;height:42px;background:transparent;border:0;border-radius:14px;cursor:pointer}
.burger span{display:block;width:20px;height:1.8px;border-radius:2px;background:rgba(255,255,255,.92);transition:transform .28s var(--ease),opacity .18s}
.nav.open .burger span:nth-child(1){transform:translateY(5.8px) rotate(45deg)}
.nav.open .burger span:nth-child(2){opacity:0}
.nav.open .burger span:nth-child(3){transform:translateY(-5.8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding-top:104px;background:
  radial-gradient(70% 45% at 50% 100%,rgba(210,58,48,.16),transparent 70%),
  linear-gradient(180deg,#0b0a0a 30%,#150c0b 100%)}
.hero__stars{position:absolute;inset:0;pointer-events:none}
.stars-i,.hero__stars i{position:absolute;left:0;top:0;width:1px;height:1px;border-radius:50%;background:#fff}
.hero__copy{position:relative;z-index:6;display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 20px}
.badge{display:inline-flex;align-items:center;gap:12px;padding:4px 18px 4px 4px;border-radius:12px;border:1px solid rgba(243,234,216,.14);
  background:linear-gradient(to top,rgba(255,200,190,.16) 0,rgba(255,200,190,.06) 6px,rgba(255,255,255,.015) 14px);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.badge i{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;color:#fff;
  background:linear-gradient(to top,#ff8f7e 0,#d83a2d 6px,#7d1d17 16px,#1c0e0e 30px);box-shadow:inset 1px 0 0 rgba(255,200,190,.4),inset -1px 0 0 rgba(255,200,190,.4)}
.badge i svg{width:17px;height:17px}
.badge b{font-size:13.5px;font-weight:500;color:rgba(243,234,216,.95)}
.hero h1{margin-top:22px;font-size:clamp(34px,6.1vw,76px);font-weight:900;text-transform:uppercase;letter-spacing:-.005em;line-height:1.02;text-shadow:0 0 40px rgba(210,58,48,.25)}
.hero h1 span{display:block}
.hero h1 span:last-child{color:var(--beige)}
.hero__sub{margin-top:20px;max-width:640px;font-size:clamp(15px,1.5vw,17px);color:var(--mute)}
.hero__cta{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}
.hero__stage{position:relative;z-index:2;width:100%;height:calc(430px*var(--k,1));margin-top:6px}
.stage__canvas{position:absolute;left:50%;top:0;width:1172px;height:430px;transform:translateX(-50%) scale(var(--k,1));transform-origin:50% 0}

/* vòng ảnh 3D */
.ring{position:absolute;left:0;top:0;width:1172px;height:430px;z-index:5;perspective:891px;perspective-origin:586px 472px;transform-style:preserve-3d;pointer-events:none}
.card{position:absolute;left:586px;top:170px;width:130px;height:300px;margin:-150px 0 0 -65px;border-radius:12px;overflow:hidden;background:#171413;
  box-shadow:0 24px 46px rgba(0,0,0,.6),0 3px 8px rgba(0,0,0,.5);backface-visibility:hidden;will-change:transform;visibility:hidden}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card::after{content:"";position:absolute;inset:0;border-radius:12px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.15),inset 0 16px 30px rgba(255,255,255,.05);
  background:linear-gradient(180deg,rgba(0,0,0,0) 56%,rgba(0,0,0,.78))}
.card i{position:absolute;z-index:2;left:9px;right:9px;bottom:10px;font-style:normal;font-size:7px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#fff}
.window{position:absolute;z-index:100;left:171px;top:222px;width:830px;height:300px;border-radius:26px 26px 0 0;overflow:hidden;box-shadow:0 -14px 44px rgba(0,0,0,.6);background:rgba(20,18,18,.9);border:1px solid rgba(243,234,216,.1);border-bottom:0}
.window__bar{height:38px;display:flex;align-items:center;gap:14px;padding:0 20px;background:linear-gradient(180deg,rgba(40,30,28,.6),rgba(24,18,18,.7))}
.dots{display:flex;gap:6px}
.dots i{width:9px;height:9px;border-radius:50%}
.dots i:nth-child(1){background:#ee5c62}.dots i:nth-child(2){background:#f6b719}.dots i:nth-child(3){background:#12c02f}
.window__url{margin:0 auto;font-size:11px;letter-spacing:.04em;color:rgba(243,234,216,.6);padding:4px 40px;border-radius:7px;background:rgba(0,0,0,.4)}
.window__body{position:absolute;inset:38px 6px 0 6px;border-radius:12px 12px 0 0;overflow:hidden;background:#000}
.window__body video{width:100%;height:100%;object-fit:cover;object-position:50% 40%}

/* hiệu ứng mở đầu (chỉ chạy một lần) */
.js .rise{animation:rise .95s var(--ease) both;animation-delay:calc(var(--i,0)*95ms + 80ms)}
@keyframes rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:none}}
.js .hero h1 .rise{animation-name:wipe}
@keyframes wipe{from{opacity:0;transform:translateY(20px);clip-path:inset(100% 0 -30% 0)}to{opacity:1;transform:none;clip-path:inset(-30% 0 -30% 0)}}

/* ---------- Khối nội dung ---------- */
.sec{padding:clamp(64px,9vw,112px) 0}
.sec--tint{background:linear-gradient(180deg,var(--bg2),#0e0c0c)}
.sec__head{max-width:680px;margin-bottom:46px}
.sec__head h2{font-size:clamp(28px,4.2vw,46px);margin:10px 0 14px}
.sec__head p{color:var(--mute)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--red2)}
.eyebrow::before{content:"";display:inline-block;width:22px;height:2px;margin:0 10px 3px 0;vertical-align:middle;background:var(--red);border-radius:2px}
.link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--beige);border-bottom:1px solid rgba(243,234,216,.3);padding-bottom:3px;transition:gap .25s,color .25s}
.link svg{width:18px;height:18px}
.link:hover{gap:14px;color:#fff}

.stats{border-block:1px solid var(--line);background:var(--bg2)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-block:34px}
.stat b{display:block;font-size:clamp(24px,2.9vw,38px);font-weight:900;line-height:1;color:var(--beige)}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--mute)}
.stat{border-left:2px solid var(--red);padding-left:16px}

.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat{position:relative;display:block;border-radius:20px;overflow:hidden;background:var(--panel);border:1px solid var(--line);aspect-ratio:4/5;transition:transform .45s var(--ease),border-color .3s}
.cat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.cat::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0) 38%,rgba(8,6,6,.92))}
.cat__body{position:absolute;z-index:2;left:22px;right:22px;bottom:22px;display:flex;flex-direction:column;gap:6px}
.cat__body b{font-size:22px;font-weight:800}
.cat__body span{font-size:13.5px;color:rgba(243,234,216,.78);line-height:1.5}
.cat__go{position:absolute;z-index:2;top:16px;right:16px;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:rgba(14,12,12,.6);border:1px solid var(--line);opacity:0;transform:translateX(-6px);transition:.3s}
.cat__go svg{width:18px;height:18px}
.cat:hover{transform:translateY(-6px);border-color:rgba(210,58,48,.6)}
.cat:hover img{transform:scale(1.06)}
.cat:hover .cat__go{opacity:1;transform:none}

.grid3,.grid4{display:grid;gap:20px}
.grid3{grid-template-columns:repeat(3,1fr)}
.grid4{grid-template-columns:repeat(4,1fr)}
.svc,.cli{padding:28px 24px;border-radius:20px;background:var(--panel);border:1px solid var(--line);transition:transform .4s var(--ease),border-color .3s}
.svc:hover,.cli:hover{transform:translateY(-4px);border-color:rgba(210,58,48,.5)}
.svc__ic{display:grid;place-items:center;width:54px;height:54px;border-radius:15px;color:var(--beige);margin-bottom:18px;background:linear-gradient(to top,rgba(210,58,48,.3),rgba(210,58,48,.06));border:1px solid rgba(210,58,48,.35)}
.svc__ic svg{width:28px;height:28px}
.svc h3,.cli h3{font-size:19px;margin-bottom:8px}
.svc p,.cli p{font-size:14.5px;color:var(--mute)}

.split{display:grid;grid-template-columns:1fr 1.1fr;gap:clamp(30px,6vw,80px);align-items:center}
.split__txt h2{font-size:clamp(28px,4vw,42px);margin:10px 0 16px}
.split__txt p{color:var(--mute);margin-bottom:14px}
.split__txt .link{margin-top:10px}
.split__vid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.vid{position:relative;border-radius:18px;overflow:hidden;background:#000;border:1px solid var(--line);aspect-ratio:9/16}
.vid--wide{aspect-ratio:16/9;grid-column:1/-1}
.vid--still{aspect-ratio:9/16}
.vid video,.vid img{width:100%;height:100%;object-fit:cover}
.split__vid:has(.vid--wide){grid-template-columns:1fr}

.gallery{columns:4 220px;column-gap:14px}
.gallery--sm{columns:4 230px}
.shot{position:relative;display:block;margin-bottom:14px;border-radius:14px;overflow:hidden;break-inside:avoid;background:var(--panel);border:1px solid var(--line);cursor:zoom-in}
.shot img{width:100%;height:auto;transition:transform .7s var(--ease)}
.shot:hover img{transform:scale(1.05)}
.shot__zoom{position:absolute;right:10px;top:10px;width:30px;height:30px;border-radius:50%;background:rgba(14,12,12,.65) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f3ead8' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='6'/%3E%3Cpath d='m20 20-4-4M11 8v6M8 11h6'/%3E%3C/svg%3E") center/16px no-repeat;opacity:0;transition:opacity .25s}
.shot:hover .shot__zoom{opacity:1}

.band{padding:clamp(48px,7vw,84px) 0;background:linear-gradient(120deg,#8c1f19,#c93429 55%,#8c1f19);position:relative;overflow:hidden}
.band::before{content:"";position:absolute;inset:14px;border:2px dashed rgba(243,234,216,.28);border-radius:26px;pointer-events:none}
.band__in{position:relative;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.band h2{font-size:clamp(26px,3.6vw,40px);color:#fff}
.band p{margin-top:8px;color:rgba(255,235,225,.9);max-width:520px}
.band__act{display:flex;gap:14px;flex-wrap:wrap}
.band .btn{background:#130c0d}
.band .btn--ghost{background:rgba(255,255,255,.12);box-shadow:inset 0 0 0 1px rgba(255,255,255,.4)}

/* ---------- Trang con ---------- */
.pagehead{padding:150px 0 clamp(40px,6vw,70px);background:radial-gradient(60% 80% at 80% 0%,rgba(210,58,48,.18),transparent 70%),var(--bg)}
.pagehead h1{font-size:clamp(32px,5vw,58px);margin:12px 0 18px;max-width:900px;font-weight:900}
.pagehead p{max-width:680px;color:var(--mute);font-size:17px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chips a{padding:9px 16px;border-radius:999px;border:1px solid var(--line);font-size:14px;color:var(--beige);transition:.25s}
.chips a:hover{background:var(--red);border-color:var(--red);color:#fff}
.steps{display:grid;gap:clamp(34px,6vw,70px)}
.step{display:grid;grid-template-columns:1fr 340px;gap:clamp(24px,5vw,70px);align-items:center}
.step--rev{grid-template-columns:340px 1fr}
.step__vid .vid{aspect-ratio:4/5}
.step--rev .step__txt{order:2}
.step__n{font-family:var(--serif);font-size:72px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--red)}
.step__txt h3{font-size:clamp(24px,3vw,32px);margin:8px 0 12px}
.step__txt p{color:var(--mute);max-width:520px}
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:start}
.contact__cards{display:grid;gap:14px}
.ccard{display:flex;align-items:center;gap:18px;padding:20px 22px;border-radius:18px;background:var(--panel);border:1px solid var(--line);transition:.3s var(--ease)}
.ccard:hover{border-color:rgba(210,58,48,.6);transform:translateX(4px)}
.ccard .svc__ic{margin:0;flex:none}
.ccard .zalo{background:#0068ff;border-color:#0068ff}
.ccard .zalo svg{width:34px;height:34px}
.ccard small{display:block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}
.ccard b{font-size:18px;font-weight:700}
.note{padding:20px 22px;border-radius:18px;border:1px dashed rgba(243,234,216,.25)}
.note b{display:block;margin-bottom:8px}
.note li{position:relative;padding-left:20px;color:var(--mute);font-size:14.5px;margin-top:6px}
.note li::before{content:"";position:absolute;left:2px;top:.62em;width:7px;height:7px;background:var(--red);transform:rotate(45deg)}
.map{border-radius:20px;overflow:hidden;border:1px solid var(--line);min-height:420px;background:var(--panel)}
.map iframe{width:100%;height:100%;min-height:420px;border:0;filter:grayscale(.4) invert(.92) hue-rotate(180deg) contrast(.9)}

/* ---------- Chân trang ---------- */
.foot{background:#080707;border-top:1px solid var(--line);padding-top:56px}
.foot__grid{display:grid;grid-template-columns:1.3fr .7fr 1.2fr;gap:40px}
.foot h3{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:16px;font-weight:700}
.foot li{margin-bottom:10px;color:var(--mute);font-size:14.5px}
.foot li a:hover{color:#fff}
.foot__about{margin-top:18px;color:var(--mute);font-size:14.5px;max-width:340px}
.foot__contact li{display:flex;gap:10px}
.foot__contact svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--red2)}
.foot__bar{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:40px;padding-block:22px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}

/* ---------- Nút nổi gọi và Zalo ---------- */
.fab{position:fixed;z-index:300;right:16px;bottom:22px;display:flex;flex-direction:column;gap:12px}
.fab__btn{position:relative;display:grid;place-items:center;width:54px;height:54px;border-radius:50%;box-shadow:0 8px 20px rgba(0,0,0,.5)}
.fab__btn svg{width:28px;height:28px}
.fab__zalo{background:#0068ff}
.fab__zalo svg{width:34px;height:34px}
.fab__call{background:var(--red);color:#fff}
.fab__btn::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid currentColor;opacity:.5;animation:pulse 2.8s ease-out infinite}
.fab__zalo::after{border-color:rgba(0,104,255,.6)}
.fab__call::after{border-color:rgba(210,58,48,.7)}
.fab__call::after{animation-delay:1.2s}
@keyframes pulse{0%{transform:scale(1);opacity:.75}70%{transform:scale(1.45);opacity:0}100%{opacity:0}}

/* ---------- Xem ảnh lớn ---------- */
.lb{position:fixed;inset:0;z-index:900;display:grid;place-items:center;background:rgba(6,5,5,.94);padding:24px}
.lb[hidden]{display:none}
.lb figure{max-width:min(92vw,1100px);max-height:90vh;display:flex;flex-direction:column;align-items:center;gap:12px}
.lb img{max-width:100%;max-height:80vh;border-radius:12px;object-fit:contain}
.lb figcaption{font-size:14px;color:var(--mute);text-align:center}
.lb button{position:absolute;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:rgba(30,24,24,.8);color:#fff;font-size:26px;cursor:pointer}
.lb__x{top:16px;right:16px}
.lb__prev{left:14px;top:50%}
.lb__next{right:14px;top:50%}

/* ---------- Hiện dần khi cuộn ---------- */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0ms)}
.js .reveal.in{opacity:1;transform:none}
.nf{display:grid;place-content:center;min-height:100vh;text-align:center;gap:14px}
.nf h1{font-size:90px}

/* ---------- Máy tính bảng và điện thoại ---------- */
@media (max-width:1020px){
  .burger{display:grid}
  .nav__menu{position:absolute;left:0;right:0;top:74px;flex-direction:column;align-items:stretch;gap:10px;padding:12px;border-radius:22px;border:1px solid var(--line);
    background:linear-gradient(180deg,rgba(18,14,14,.985),rgba(10,8,8,.99));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 26px 60px rgba(0,0,0,.6);
    opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .24s,transform .28s var(--ease),visibility .28s}
  .nav.open .nav__menu{opacity:1;visibility:visible;transform:none}
  .nav__links{flex-direction:column;gap:2px}
  .nav__links a{font-size:16px;padding:12px 14px}
  .nav__actions{justify-content:space-between}
  .nav__actions .btn{flex:1}
  .cats{grid-template-columns:repeat(2,1fr)}
  .grid4{grid-template-columns:repeat(2,1fr)}
  .grid3{grid-template-columns:1fr 1fr}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .split,.contact{grid-template-columns:1fr}
  .step,.step--rev{grid-template-columns:1fr}
  .step--rev .step__txt{order:0}
  .foot__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .nav{height:58px;top:8px}
  .mark{width:28px;height:28px}
  .nav__word b{font-size:18px}
  .hero{padding-top:92px}
  .cats,.grid4,.grid3{grid-template-columns:1fr}
  .cat{aspect-ratio:5/4}
  .stats__grid{gap:22px 14px}
  .gallery{columns:2 140px;column-gap:10px}
  .shot{margin-bottom:10px}
  .step__vid{max-width:300px}
  .foot__grid{grid-template-columns:1fr}
  .band::before{inset:8px}
  .fab{right:12px;bottom:16px}
  .fab__btn{width:50px;height:50px}
  .hero__cta .btn{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .rise,.js .hero h1 .rise{animation:none}
  .js .reveal{opacity:1;transform:none;transition:none}
  .fab__btn::after{animation:none;display:none}
  .nav__menu,.burger span{transition:none}
}

/* ---------- Giao diện sáng: bảng màu kem - hổ phách - nâu (F9E6A8, F2A900, CC6F00, 4D2A00) ---------- */
html[data-theme=light]{
  color-scheme:light;
  --bg:#fdf2cc; --bg2:#f9e6a8; --panel:#fff8e3; --line:rgba(77,42,0,.17);
  --ink:#4d2a00; --mute:#6f4309; --dim:#7a5314;
  --red:#cc6f00; --red2:#9a5200; --red3:#7a4100; --beige:#4d2a00;
}
html[data-theme=light] :focus-visible{outline-color:#9a5200}
html[data-theme=light] .skip{color:#fff}
html[data-theme=light] .btn{
  background:linear-gradient(to top,#ffe9a0 1px,#ffc83d 3px,#f2a900 5px,#c47400 8px,#8a4d00 11px,#5e3300 16px,#4d2a00 24px,#4d2a00 100%);
  box-shadow:inset 0 3px 3px -2px rgba(255,236,170,.2),inset 1px 0 0 rgba(255,255,255,.1),inset -1px 0 0 rgba(255,255,255,.1),0 1px 0 rgba(255,214,120,.5),0 6px 16px -6px rgba(204,111,0,.55)}
html[data-theme=light] .btn::after{background:linear-gradient(90deg,rgba(255,236,170,.7),rgba(255,236,170,0) 13px),linear-gradient(270deg,rgba(255,236,170,.7),rgba(255,236,170,0) 13px)}
html[data-theme=light] .btn span{text-shadow:0 1px 2px rgba(40,18,0,.5)}
html[data-theme=light] .btn--ghost{color:#4d2a00;background:linear-gradient(to top,rgba(242,169,0,.35) 1px,rgba(242,169,0,.14) 12px,rgba(255,248,227,.85) 30px,rgba(255,248,227,.85) 100%);box-shadow:inset 0 0 0 1px rgba(77,42,0,.3)}
html[data-theme=light] .btn--ghost span{text-shadow:none}

html[data-theme=light] .nav{background:rgba(253,242,204,.72);border-color:rgba(77,42,0,.17);box-shadow:0 8px 28px -12px rgba(77,42,0,.35),inset 0 1px 0 rgba(255,255,255,.6)}
html[data-theme=light] .nav__links a{color:rgba(77,42,0,.88)}
html[data-theme=light] .nav__links a:hover{color:#4d2a00;background:rgba(77,42,0,.08)}
html[data-theme=light] .nav__links a[aria-current]{color:#4d2a00;background:rgba(242,169,0,.4)}
html[data-theme=light] .lang:hover,html[data-theme=light] .theme:hover{color:#4d2a00;border-color:rgba(77,42,0,.45)}
html[data-theme=light] .burger span{background:#4d2a00}
html[data-theme=light] .mark{filter:drop-shadow(0 2px 6px rgba(204,111,0,.4))}

html[data-theme=light] .hero{background:radial-gradient(70% 50% at 50% 100%,rgba(242,169,0,.38),transparent 72%),linear-gradient(180deg,#fdf5d6 30%,#f9e6a8 100%)}
html[data-theme=light] .hero__stars{display:none}
html[data-theme=light] .badge{border-color:rgba(77,42,0,.2);background:linear-gradient(to top,rgba(242,169,0,.3) 0,rgba(255,255,255,.4) 8px,rgba(255,255,255,.35) 100%)}
html[data-theme=light] .badge b{color:#4d2a00}
html[data-theme=light] .badge i{background:linear-gradient(to top,#ffd35a 0,#f2a900 6px,#8a4d00 16px,#4d2a00 30px);box-shadow:inset 1px 0 0 rgba(255,236,170,.4),inset -1px 0 0 rgba(255,236,170,.4)}
html[data-theme=light] .hero h1{text-shadow:0 0 40px rgba(242,169,0,.4)}
html[data-theme=light] .hero h1 span:last-child{color:#b35f00}
html[data-theme=light] .card{box-shadow:0 22px 40px rgba(77,42,0,.35),0 3px 8px rgba(77,42,0,.3)}
html[data-theme=light] .window{box-shadow:0 -14px 44px rgba(77,42,0,.35);border-color:rgba(77,42,0,.25)}

html[data-theme=light] .sec--tint{background:linear-gradient(180deg,var(--bg2),#fdf2cc)}
html[data-theme=light] .link{border-bottom-color:rgba(77,42,0,.35)}
html[data-theme=light] .link:hover{color:#9a5200}
html[data-theme=light] .stat{border-left-color:#cc6f00}
html[data-theme=light] .cat:hover,html[data-theme=light] .svc:hover,html[data-theme=light] .cli:hover,html[data-theme=light] .ccard:hover{border-color:rgba(204,111,0,.7)}
html[data-theme=light] .svc__ic{color:#4d2a00;background:linear-gradient(to top,rgba(242,169,0,.4),rgba(242,169,0,.1));border-color:rgba(204,111,0,.5)}
html[data-theme=light] .svc,html[data-theme=light] .cli,html[data-theme=light] .ccard{box-shadow:0 10px 26px -18px rgba(77,42,0,.45)}
html[data-theme=light] .chips a:hover{background:#4d2a00;border-color:#4d2a00;color:#f9e6a8}
html[data-theme=light] .pagehead{background:radial-gradient(60% 80% at 80% 0%,rgba(242,169,0,.4),transparent 70%),var(--bg)}
html[data-theme=light] .step__n{-webkit-text-stroke-color:#cc6f00}
html[data-theme=light] .note{border-color:rgba(77,42,0,.32)}
html[data-theme=light] .note li::before{background:#cc6f00}
html[data-theme=light] .map iframe{filter:none}
html[data-theme=light] .ccard small{color:#7a5314}

html[data-theme=light] .band{background:linear-gradient(120deg,#3d2100,#5e3300 55%,#3d2100)}
html[data-theme=light] .band::before{border-color:rgba(242,169,0,.5)}
html[data-theme=light] .band h2{color:#f9e6a8}
html[data-theme=light] .band p{color:rgba(249,230,168,.88)}
html[data-theme=light] .band .btn{background:linear-gradient(to top,#fff0b8 1px,#f2a900 4px,#f2a900 100%);color:#3a1f00;box-shadow:0 6px 16px -6px rgba(0,0,0,.5)}
html[data-theme=light] .band .btn span{text-shadow:none}
html[data-theme=light] .band .btn::after{display:none}
html[data-theme=light] .band .btn--ghost{background:rgba(249,230,168,.1);color:#f9e6a8;box-shadow:inset 0 0 0 1px rgba(249,230,168,.5)}

html[data-theme=light] .foot{--mute:#e9d29a;--dim:#c9a96a;--line:rgba(249,230,168,.2);--red2:#f2a900;background:#3d2100;color:#f9e6a8}
html[data-theme=light] .foot li a:hover{color:#fff}
html[data-theme=light] .fab__btn{box-shadow:0 8px 20px rgba(77,42,0,.4)}
html[data-theme=light] .lb{--mute:#e9d29a;--line:rgba(249,230,168,.2)}

@media (max-width:1020px){
  html[data-theme=light] .nav__menu{background:linear-gradient(180deg,rgba(255,248,227,.99),rgba(253,242,204,.99));box-shadow:0 26px 60px rgba(77,42,0,.35)}
}
html{transition:background-color .3s}
html[data-theme=light] .cat{color:#fff6dc}
html[data-theme=light] .cat__go{color:#f9e6a8;background:rgba(40,20,0,.6)}
html[data-theme=light] .card i,html[data-theme=light] .window__url{color:#fff6dc}

/* ---------- Tủ mẫu 4 ngăn (cuộn để mở từng ngăn) ---------- */
.vault{--wood1:#2b1a10;--wood2:#3a2415;--wood3:#1b0f08;--glow:#f2a900;background:linear-gradient(180deg,var(--bg),var(--bg2))}
.vault__head{max-width:760px;margin-bottom:clamp(14px,2.6vh,30px)}
.vault__head h2{text-wrap:balance}
.vault__head h2{font-size:clamp(26px,3.6vw,42px);margin-top:8px}
.vault__grid{display:grid;grid-template-columns:minmax(300px,400px) 1fr;gap:clamp(28px,5vw,72px);align-items:center}
.cabinet{display:grid;gap:10px;padding:16px;border-radius:20px;background:linear-gradient(160deg,var(--wood2),var(--wood3));border:1px solid rgba(243,234,216,.12);
  box-shadow:0 30px 60px -24px rgba(0,0,0,.7),inset 0 1px 0 rgba(255,255,255,.08)}
.drawer{position:relative;height:clamp(64px,11vh,98px)}
.drawer__in{position:absolute;inset:3px 6px;border-radius:10px;background:radial-gradient(80% 120% at 50% 100%,rgba(242,169,0,.55),rgba(60,30,8,.9) 70%);box-shadow:inset 0 6px 14px rgba(0,0,0,.8);opacity:calc(var(--o,0)*1)}
.drawer__front{position:relative;z-index:1;height:100%;display:flex;align-items:center;gap:14px;padding:0 20px;border-radius:12px;
  background:linear-gradient(180deg,#5a3a22,#43291a 55%,#3a2316);border:1px solid rgba(255,220,170,.16);
  box-shadow:inset 0 1px 0 rgba(255,235,200,.18),0 6px 14px -6px rgba(0,0,0,.7);
  transform:translateY(calc(var(--o,0)*16px)) scale(calc(1 + var(--o,0)*.035));transform-origin:50% 0;will-change:transform}
.drawer__no{font-family:var(--serif);font-size:20px;font-weight:700;color:rgba(255,220,170,.55)}
.drawer__name{font-weight:700;font-size:15px;color:#f3ead8;letter-spacing:.02em}
.drawer__handle{margin-left:auto;width:54px;height:9px;border-radius:6px;background:linear-gradient(180deg,#f9e6a8,#c98a1c 60%,#8a5a0e);box-shadow:0 2px 4px rgba(0,0,0,.6)}
.drawer.is-on .drawer__no{color:var(--glow)}
.drawer.is-on .drawer__front{border-color:rgba(242,169,0,.55)}
.vault__stage{position:relative;min-height:clamp(300px,58vh,560px)}
.item{position:absolute;inset:0;display:grid;grid-template-columns:minmax(220px,.82fr) 1fr;gap:clamp(20px,4vw,52px);align-items:center;opacity:0;pointer-events:none;will-change:transform,opacity}
.item.is-on{pointer-events:auto}
.item__img{height:100%;max-height:clamp(300px,58vh,560px);border-radius:22px;overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:0 36px 70px -28px rgba(0,0,0,.75)}
.item__img img,.item__img video{width:100%;height:100%;object-fit:cover}
.item__no{font-family:var(--serif);font-size:18px;color:var(--red2);letter-spacing:.1em}
.item__txt h3{font-size:clamp(28px,3.6vw,46px);margin:8px 0 14px;font-weight:900}
.item__txt p{color:var(--mute);max-width:440px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 24px}
.tags li{padding:7px 14px;border-radius:999px;border:1px solid var(--line);font-size:13.5px;color:var(--ink);background:rgba(243,234,216,.05)}
/* chỉ khi có JS mới ghim màn hình và dựng hiệu ứng; không có JS thì xếp thành lưới thường */
.js .vault__track{height:calc(100vh + 360vh);height:calc(100svh + 360svh)}
.js .vault__sticky{position:sticky;top:0;height:100vh;height:100svh;display:flex;align-items:center;padding-top:76px}
.js .vault__sticky>.wrap{width:min(var(--wrap),100% - 40px)}
html:not(.js) .vault{padding:80px 0}
html:not(.js) .cabinet{display:none}
html:not(.js) .vault__grid{grid-template-columns:1fr}
html:not(.js) .vault__stage{display:grid;gap:40px;min-height:0}
html:not(.js) .item{position:static;opacity:1}
@media (max-width:900px){
  .vault__grid{grid-template-columns:1fr;gap:16px}
  .cabinet{grid-template-columns:repeat(4,1fr);gap:6px;padding:8px;border-radius:14px}
  .drawer{height:48px}
  .drawer__front{padding:0 6px;justify-content:center;gap:0;border-radius:9px}
  .drawer__name,.drawer__handle{display:none}
  .drawer__no{font-size:17px}
  .vault__head{margin-bottom:10px}
  .vault__head h2{font-size:24px}
  .vault__stage{min-height:min(60svh,470px)}
  .item{grid-template-columns:.8fr 1fr;gap:14px;align-items:start}
  .item__img{height:auto;aspect-ratio:4/5;max-height:46svh}
  .item__txt h3{font-size:24px;margin:4px 0 8px}
  .item__txt p{font-size:13.5px;line-height:1.5}
  .tags{margin:12px 0 14px;gap:6px}
  .tags li{font-size:12px;padding:5px 10px}
}
@media (max-width:520px){
  .item{grid-template-columns:1fr;gap:10px}
  .item__img{aspect-ratio:16/10;max-height:26svh}
  .item__img img{object-position:50% 40%}
  .tags li:nth-child(3){display:none}
}
@media (prefers-reduced-motion:reduce){
  .js .vault__track{height:auto}
  .js .vault__sticky{position:static;height:auto;padding:80px 0}
  .cabinet{display:none}
  .vault__grid{grid-template-columns:1fr}
  .vault__stage{display:grid;gap:40px;min-height:0}
  .item{position:static;opacity:1!important;transform:none!important}
}
html[data-theme=light] .item__img{box-shadow:0 30px 60px -28px rgba(77,42,0,.55)}
html[data-theme=light] .tags li{background:rgba(255,248,227,.7)}
html[data-theme=light] .cabinet{box-shadow:0 30px 60px -24px rgba(77,42,0,.6),inset 0 1px 0 rgba(255,255,255,.08)}