/* KAO Design · "Bản vẽ sống" (living blueprint): The TEN / cudan360 palette, charcoal + champagne. Every space appears first as a
   champagne line drawing (the s/ folders made by scripts/sketch.cjs) and then "lights on" into the real photo. Archivo (wdth axis) +
   Chakra Petch for drawing labels. Radius: pills for controls, 6px panels. Dark only. */
:root{
  --bg:#0A0C0F; --bg2:#0E1217; --panel:#121820; --panel2:#171E27; --navy:#334862;
  --ink:#EEECE8; --ink2:#D2D0CB; --muted:#9AA0A8; --dim:#6B7280;
  --amber:#D9C6A0; --amber-l:#F2E6CC; --ember:#B9A57F;
  --grad:linear-gradient(120deg,#B9A57F 0%,#D9C6A0 50%,#F2E6CC 100%);
  --line:rgba(217,198,160,.22); --line2:rgba(238,236,232,.1);
  --sans:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif; --num:"Chakra Petch","Archivo",system-ui,sans-serif;
  --r:6px; --pill:999px; --ease:cubic-bezier(.16,1,.3,1); --pen:cubic-bezier(.65,0,.35,1);
  --gut:clamp(16px,4vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;overflow-x:clip;scrollbar-color:#3a3127 var(--bg)}
html.lenis,html.lenis body{height:auto}
.lenis.lenis-stopped{overflow:hidden}
body{margin:0;background:var(--bg);color:var(--ink2);font:400 16.5px/1.65 var(--sans);font-stretch:100%;overflow-x:clip;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:400;line-height:1.08;letter-spacing:-.01em}
p{margin:0}
em{font-style:italic}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
::selection{background:var(--amber);color:#0A0C0F}
.wrap{width:100%;max-width:1360px;margin:0 auto;padding-left:var(--gut);padding-right:var(--gut)}
.sec{padding-top:clamp(72px,8.5vw,124px);padding-bottom:clamp(72px,8.5vw,124px)}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--amber);color:#0A0C0F;padding:10px 16px;border-radius:var(--pill)}
.skip:focus{left:8px}
.num{font-family:var(--num);font-weight:500;letter-spacing:0}
.h2{font-size:clamp(34px,5vw,68px);font-stretch:118%;font-weight:300;line-height:1.06;max-width:19ch}
.h2 em,h1 em,.big em{font-stretch:100%;font-weight:300;color:var(--amber);padding-bottom:.06em}
.h3{font-size:clamp(22px,2.2vw,28px);font-stretch:112%;font-weight:400}
.lede{font-size:clamp(16.5px,1.35vw,19px);color:var(--muted);max-width:56ch;margin-top:20px}
.eyebrow{display:inline-block;font:500 12.5px/1 var(--num);letter-spacing:.22em;text-transform:uppercase;color:var(--amber);margin-bottom:22px}
.small{font-size:14px;color:var(--muted);margin-top:16px}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 26px;border-radius:var(--pill);font-weight:600;font-size:15.5px;text-decoration:none;white-space:nowrap;cursor:pointer;border:1px solid transparent;transition:transform .5s var(--ease),background-color .3s,border-color .3s,color .3s;isolation:isolate;overflow:hidden}
.btn.sm{min-height:42px;padding:0 18px;font-size:14px}
.btn.amber{background:var(--grad);color:#0A0C0F;background-size:160% 100%;background-position:0 0;transition:background-position .7s var(--ease),transform .5s var(--ease)}
.btn.amber:hover{background-position:100% 0}
.btn.ghost{border-color:rgba(243,237,227,.28);color:var(--ink);background:rgba(10,12,15,.25)}
.btn.ghost:hover{border-color:var(--amber);color:var(--amber-l)}
.btn:active{transform:scale(.98)}
.btn .ar{transition:transform .4s var(--ease)}
.btn:hover .ar{transform:translateX(4px)}

/* ---------- chrome: progress line, pointer light ---------- */
.progress{position:fixed;left:0;top:0;height:2px;width:100%;z-index:60;background:var(--grad);transform-origin:0 50%;transform:scaleX(0);pointer-events:none}
@supports (animation-timeline:scroll()){
  .progress{animation:grow linear both;animation-timeline:scroll(root)}
}
@keyframes grow{to{transform:scaleX(1)}}
main,footer{position:relative;z-index:1}

/* ---------- header ---------- */
.bar{position:fixed;inset:0 0 auto;z-index:50;transition:background-color .5s,backdrop-filter .5s,transform .6s var(--ease)}
.bar.solid{background:rgba(10,12,15,.96);box-shadow:0 1px 0 var(--line2)}
.bar.away{transform:translateY(-100%)}
.bar-in{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;margin-right:auto}
.brand .mk{width:30px;height:auto}
.brand .wd{width:120px;height:auto}
.nav{display:flex;gap:4px}
.nav a{position:relative;padding:8px 13px;text-decoration:none;font-size:14.5px;font-weight:500;color:var(--ink2);border-radius:var(--pill);transition:color .3s}
.nav a::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:1px;background:var(--amber);transform:scaleX(0);transform-origin:0 50%;transition:transform .5s var(--ease)}
.nav a:hover,.nav a[aria-current="page"]{color:var(--amber-l)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
html:not(.news-on) [data-nav="bang-tin"]{display:none!important}
#menuBtn{display:none;align-items:center;gap:10px;min-height:44px;padding:0 16px;border-radius:var(--pill);border:1px solid rgba(243,237,227,.25);background:rgba(10,12,15,.4);color:var(--ink);cursor:pointer;font-weight:600;font-size:14px}
#menuBtn i{width:16px;height:8px;border-top:1.5px solid currentColor;border-bottom:1.5px solid currentColor}
@media (max-width:1060px){.nav{display:none}#menuBtn{display:inline-flex}}
@media (max-width:520px){.bar-cta{display:none}.brand .wd{width:104px}}
#mmenu{margin:0;width:100%;max-width:none;height:100dvh;max-height:none;border:0;padding:0;background:var(--bg);color:var(--ink)}
#mmenu[open]{display:block;animation:fade .3s}
#mmenu::backdrop{background:transparent}
.mm-in{height:100%;display:flex;flex-direction:column;padding:16px var(--gut) 30px;overflow:auto}
.mm-head{display:flex;justify-content:space-between;align-items:center;height:56px}
.mm-head img{width:130px}
.mm-head button{width:46px;height:46px;border-radius:50%;border:1px solid rgba(243,237,227,.25);background:none;color:var(--ink);font-size:26px;cursor:pointer}
.mm-list{display:grid;margin-top:20px}
.mm-list a{display:grid;padding:14px 0;border-bottom:1px solid var(--line2);text-decoration:none;opacity:0;transform:translateY(14px);animation:mmIn .6s var(--ease) forwards;animation-delay:calc(var(--i)*45ms + 80ms)}
.mm-list b{font-size:26px;font-stretch:115%;font-weight:400;color:var(--ink)}
.mm-list small{color:var(--muted);font-size:13.5px}
.mm-list a[aria-current="page"] b{color:var(--amber)}
@keyframes mmIn{to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity 1s var(--ease),transform 1.1s var(--ease);transition-delay:calc(var(--i,0)*70ms)}
.rv.in{opacity:1;transform:none}

/* ================= HOME ================= */
/* hero: the room is drawn first (pen sweeps left → right), then the lights come on from the pendant lamps */
.hero{position:relative;min-height:100dvh;display:flex;align-items:flex-end;overflow:hidden;background:var(--bg)}
.hero-media{position:absolute;inset:0}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 60%}
.hero-media .sk{clip-path:inset(0 100% 0 0);animation:drawIn 1.7s .15s var(--pen) forwards}
@property --lr{syntax:"<percentage>";inherits:false;initial-value:0%}
.hero-media .ph,.phead.photo>.ph{--at:60% 30%;-webkit-mask:radial-gradient(circle at var(--at),#000 calc(var(--lr) - 18%),transparent var(--lr));mask:radial-gradient(circle at var(--at),#000 calc(var(--lr) - 18%),transparent var(--lr));animation:lightsOn 2.6s 1.7s var(--ease) forwards}
.hero-media .pen{position:absolute;top:0;bottom:0;left:0;width:1px;background:var(--amber-l);box-shadow:0 0 18px 2px rgba(242,230,204,.6);opacity:0;animation:pen 1.7s .15s var(--pen) forwards}
@keyframes drawIn{to{clip-path:inset(0 0 0 0)}}
@keyframes lightsOn{to{--lr:140%}}
@keyframes pen{0%{opacity:1;transform:translateX(0)}95%{opacity:1}100%{opacity:0;transform:translateX(100vw)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,12,15,.9) 0%,rgba(10,12,15,.55) 40%,rgba(10,12,15,.05) 72%),linear-gradient(0deg,var(--bg) 0%,rgba(10,12,15,0) 34%)}
.hero-in{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:40px;padding-top:130px;padding-bottom:clamp(56px,9vh,110px)}
.hero h1{font-size:clamp(46px,7.4vw,112px);font-stretch:122%;font-weight:300;line-height:1.02;letter-spacing:-.025em}
.hero h1 .ln{display:block;overflow:hidden;padding-bottom:.08em}
.hero h1 .ln>span{display:block;transform:translateY(105%);animation:lineUp 1.3s var(--ease) forwards}
.hero h1 .ln:nth-child(1)>span{animation-delay:.5s}
.hero h1 .ln:nth-child(2)>span{animation-delay:.65s}
@keyframes lineUp{to{transform:none}}
.hero-sub{max-width:40ch;margin-top:26px;font-size:clamp(16.5px,1.4vw,19px);color:var(--ink2);opacity:0;animation:fadeUp 1s 1s var(--ease) forwards}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;opacity:0;animation:fadeUp 1s 1.15s var(--ease) forwards}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
/* the logo is drawn as an outline, then filled with champagne */
.kmark{position:relative;width:clamp(140px,13vw,210px);aspect-ratio:360/411;margin-bottom:12px;transform:translate(var(--px,0),var(--py,0));transition:transform 1.2s var(--ease)}
.kmark img{position:absolute;inset:0;width:100%;height:100%}
.kmark .ln{clip-path:inset(0 0 100% 0);animation:drawDown 1.5s .5s var(--pen) forwards}
.kmark .fl{opacity:0;filter:drop-shadow(0 0 30px rgba(217,198,160,.25));animation:fillIn 1.4s 2.1s var(--ease) forwards}
@keyframes drawDown{to{clip-path:inset(0 0 0 0)}}
@keyframes fillIn{to{opacity:1}}
@media (max-width:760px){
  .hero-in{grid-template-columns:1fr;padding-top:110px}
  .kmark{order:-1;width:60px;margin:0 0 6px}
  .hero-shade{background:linear-gradient(0deg,var(--bg) 4%,rgba(10,12,15,.82) 45%,rgba(10,12,15,.25) 100%)}
  .hero-media img{object-position:30% 50%}
}

/* drawing-set sheet label on every section (the concept's title block) */
.sheet{display:flex;align-items:center;gap:14px;margin-bottom:clamp(30px,4vw,54px);font:500 11.5px/1 var(--num);letter-spacing:.22em;text-transform:uppercase;color:var(--dim)}
.sheet::before{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent);transform-origin:0 50%;transform:scaleX(0);transition:transform 1.6s var(--pen)}
.sheet.in::before{transform:scaleX(1)}
.sheet b{font-weight:500;color:var(--amber)}
/* faint drawing grid behind the whole site */
body{background-color:var(--bg);background-image:linear-gradient(rgba(217,198,160,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(217,198,160,.035) 1px,transparent 1px),linear-gradient(rgba(217,198,160,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(217,198,160,.05) 1px,transparent 1px);background-size:48px 48px,48px 48px,240px 240px,240px 240px}

/* "Bước vào căn nhà": room-by-room walkthrough (home + project dialog). Each room is drawn, then lit. */
.walk{position:relative;min-width:0}
.walk-stage{position:relative;aspect-ratio:16/9;border-radius:var(--r);overflow:hidden;background:var(--bg);border:1px solid var(--line2);touch-action:pan-y;cursor:pointer}
.walk-stage .room{position:absolute;inset:0}
.walk-stage img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.room .sk{clip-path:inset(0 50% 0 50%)}
.room .ph{opacity:0}
.room.go .sk{clip-path:inset(0 0 0 0);transition:clip-path 1s var(--pen)}
.room.lit .ph{opacity:1;transition:opacity 1.4s var(--ease)}
.walk-sec .walk{margin-top:44px}
.walk-all{margin-top:26px}
.walk-hud{position:absolute;left:0;right:0;bottom:0;z-index:2;display:flex;align-items:end;justify-content:space-between;gap:16px;padding:22px;background:linear-gradient(0deg,rgba(10,12,15,.85),transparent);pointer-events:none}
.walk-hud b{display:block;color:var(--ink);font-weight:400;font-size:clamp(20px,2.2vw,30px);font-stretch:112%}
.walk-hud small{font:500 12px/1 var(--num);letter-spacing:.18em;color:var(--amber)}
.walk-nav{display:flex;gap:8px;pointer-events:auto}
.walk-nav button{width:48px;height:48px;border-radius:50%;border:1px solid rgba(238,236,232,.3);background:rgba(10,12,15,.75);color:var(--ink);cursor:pointer;font-size:18px;transition:border-color .3s}
.walk-nav button:hover{border-color:var(--amber)}
.walk-rooms{display:flex;gap:6px;margin-top:12px;overflow-x:auto;scrollbar-width:none}
.walk-rooms button{flex:none;display:grid;gap:6px;width:clamp(96px,10vw,132px);padding:0;border:0;background:none;color:var(--muted);font-size:12.5px;text-align:left;cursor:pointer}
.walk-rooms button img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;opacity:.45;filter:grayscale(.6);transition:opacity .4s,filter .4s;outline:1px solid transparent;outline-offset:2px}
.walk-rooms button[aria-current="true"]{color:var(--amber-l)}
.walk-rooms button[aria-current="true"] img{opacity:1;filter:none;outline-color:var(--amber)}
.walk-rooms button span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:640px){.walk-stage{aspect-ratio:4/3}.walk-hud{padding:14px}.walk-nav button{width:42px;height:42px}}

/* three worries, struck through and answered */
.wl{list-style:none;margin:56px 0 0;padding:0;display:grid}
.wl li{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:20px 48px;align-items:center;padding:34px 0;border-top:1px solid var(--line2)}
.wl li:last-child{border-bottom:1px solid var(--line2)}
.wq>span{background:var(--grad) no-repeat 0 58%/0% 2px;-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background-size 1.1s .5s var(--ease)}
.wq{justify-self:start;transition:color 1s .9s;font-size:clamp(26px,3.4vw,46px);font-stretch:115%;font-weight:300;color:var(--muted);line-height:1.15}
.wa{color:var(--ink2);opacity:0;transform:translateY(12px);transition:opacity .9s 1.1s,transform 1s 1.1s var(--ease);max-width:44ch}
.wl li.in .wq{color:var(--dim)}
.wl li.in .wq>span{background-size:100% 2px}
.wl li.in .wa{opacity:1;transform:none}
@media (max-width:760px){.wl li{grid-template-columns:1fr;padding:26px 0}}

/* drawing → finished room slider */
.bv-head{display:grid;gap:0}
.bv{position:relative;margin:48px 0 0;border-radius:var(--r);overflow:hidden;aspect-ratio:1600/1042;background:#0d0b08;user-select:none;touch-action:pan-y;box-shadow:0 60px 120px -60px rgba(217,198,160,.25)}
.bv img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bv .draw{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--x)) 0 0)}
.bv-handle{position:absolute;top:0;bottom:0;left:var(--x);width:2px;margin-left:-1px;background:var(--grad);pointer-events:none;box-shadow:0 0 22px rgba(217,198,160,.7)}
.bv-handle i{position:absolute;top:50%;left:50%;translate:-50% -50%;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:rgba(10,12,15,.72);border:1px solid var(--amber);color:var(--amber-l);font-style:normal;font-size:18px;letter-spacing:4px}
.bv input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.bv-tag{position:absolute;top:16px;font:500 12px/1 var(--num);letter-spacing:.18em;text-transform:uppercase;padding:8px 12px;border-radius:var(--pill);background:rgba(10,12,15,.6);color:var(--amber-l);pointer-events:none}
.bv-tag.l{left:16px}.bv-tag.r{right:16px;color:var(--ink)}
.bv figcaption{position:absolute;left:16px;bottom:14px;font-size:13px;color:rgba(243,237,227,.82);pointer-events:none;text-shadow:0 1px 8px #000}
@media (max-width:640px){.bv{aspect-ratio:4/5}.bv figcaption{right:16px}}

/* services: three light panels, the hovered one widens */
.svc{display:flex;gap:14px;margin-top:52px;height:min(78vh,640px)}
.svc-p{position:relative;flex:1;min-width:0;border-radius:var(--r);overflow:hidden;text-decoration:none;background:var(--panel);transition:flex-grow .9s var(--ease),opacity 1s var(--ease),transform 1.1s var(--ease)}
.svc-p img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.85) brightness(.62);transform:scale(1.06);transition:transform 1.4s var(--ease),filter .9s}
.svc-p .sk{filter:none;transition:opacity 1.1s var(--ease),transform 1.4s var(--ease)}
.svc-p:hover .sk,.svc-p:focus-visible .sk,.svc-p.lit .sk{opacity:0}
.svc-p::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,12,15,.95) 8%,rgba(10,12,15,.1) 62%)}
.svc-in{position:absolute;left:0;right:0;bottom:0;z-index:1;padding:clamp(20px,2.4vw,34px);display:grid;gap:10px}
.svc-in .num{font-size:15px;color:var(--amber)}
.svc-in b{font-size:clamp(22px,2.2vw,32px);font-stretch:115%;font-weight:400;color:var(--ink);line-height:1.1}
.svc-more{display:grid;gap:12px;max-width:38ch;font-size:15.5px;color:var(--ink2);opacity:0;max-height:0;transition:opacity .6s,max-height .9s var(--ease)}
.svc-more em{font-style:normal;font-size:13px;color:var(--muted)}
.svc-more u{text-decoration:none;color:var(--amber-l);font-weight:600}
@media (hover:hover) and (min-width:900px){
  .svc:hover .svc-p,.svc:focus-within .svc-p{flex-grow:.8}
  .svc .svc-p:hover,.svc .svc-p:focus-visible{flex-grow:2.3}
  .svc-p:hover img,.svc-p:focus-visible img{transform:scale(1);filter:saturate(1) brightness(.8)}
  .svc-p:hover .svc-more,.svc-p:focus-visible .svc-more{opacity:1;max-height:260px;transition-delay:.25s}
  .svc:not(:hover):not(:focus-within) .svc-p:first-child{flex-grow:1.6}
  .svc:not(:hover):not(:focus-within) .svc-p:first-child .svc-more{opacity:1;max-height:260px}
  .svc:not(:hover):not(:focus-within) .svc-p:first-child .sk{opacity:0}
}
@media (max-width:899px),(hover:none){
  .svc{flex-direction:column;height:auto}
  .svc-p{min-height:420px}
  .svc-more{opacity:1;max-height:none}
}

/* featured work */
.work-head{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap}
.work{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));grid-auto-rows:clamp(90px,9.5vw,128px);gap:14px;margin-top:48px}
.wk{position:relative;border-radius:var(--r);overflow:hidden;text-decoration:none;background:var(--panel)}
.w1{grid-column:1/8;grid-row:span 4}.w2{grid-column:8/13;grid-row:span 2}.w3{grid-column:8/13;grid-row:span 2}
.w4{grid-column:1/5;grid-row:span 3}.w5{grid-column:5/9;grid-row:span 3}.w6{grid-column:9/13;grid-row:span 3}.w7{grid-column:1/13;grid-row:span 4}
.wk-img,.wk-img img{position:absolute;inset:0;width:100%;height:100%}
.wk-img img{object-fit:cover;transition:transform 1.6s var(--ease),opacity .9s}
.wk-img .alt{opacity:0}
.wk-img .sk{z-index:1;clip-path:inset(0 0 0 0)}
.wk.in .wk-img .sk{clip-path:inset(0 0 0 100%);transition:clip-path 1.8s var(--pen) .35s,transform 1.6s var(--ease)}
.wk-t{z-index:2}
.wk:hover .wk-img img{transform:scale(1.05)}
.wk:hover .wk-img .alt{opacity:1}
.wk::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,12,15,.85),transparent 45%);pointer-events:none;z-index:1}
.wk-t{position:absolute;left:18px;right:18px;bottom:16px;z-index:1;display:grid;gap:2px}
.wk-t b{color:var(--ink);font-weight:500;font-size:clamp(16px,1.4vw,20px);font-stretch:108%}
.wk-t small{color:var(--muted);font-size:13px}
@media (max-width:760px){
  .work{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:150px}
  .w1,.w7{grid-column:1/3;grid-row:span 2}.w2,.w3,.w4,.w5,.w6{grid-column:auto;grid-row:span 2}
  .wk-t{left:12px;right:12px;bottom:10px}.wk-t small{display:none}
}

/* numbers */
.stats{border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);background:linear-gradient(180deg,var(--bg2),var(--bg))}
.stats-in{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.st{padding:44px 26px 40px;display:grid;gap:10px;align-content:start}
.st+.st{border-left:1px solid var(--line2)}
.st b{font-size:clamp(44px,5vw,72px);line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:500}
.st b small{font-size:.5em}
.st>span{color:var(--muted);font-size:15px;max-width:24ch}
@media (max-width:860px){.stats-in{grid-template-columns:1fr 1fr}.st:nth-child(3){border-left:0}.st:nth-child(n+3){border-top:1px solid var(--line2)}.st{padding:30px 14px}.st b{font-size:38px}}

/* process: sticky side + an amber thread that fills while you read */
.proc{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(30px,6vw,100px)}
.proc-side{position:sticky;top:120px;align-self:start;display:grid;justify-items:start;gap:0}
.proc-side .btn{margin-top:30px}
.steps{position:relative;list-style:none;margin:0;padding:0 0 0 0;display:grid;gap:56px}
.steps::before,.steps::after{content:"";position:absolute;left:31px;top:30px;bottom:30px;width:1px;background:var(--line2)}
.steps::after{background:var(--grad);transform-origin:50% 0;transform:scaleY(var(--fill,0))}
@supports (animation-timeline:view()){
  .steps::after{animation:fillY linear both;animation-timeline:view();animation-range:entry 20% exit 60%}
}
@keyframes fillY{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.steps li{position:relative;display:grid;grid-template-columns:62px minmax(0,1fr);gap:26px;align-items:start}
.steps h3{font-size:clamp(22px,2.1vw,30px);font-stretch:112%;font-weight:400;margin-top:12px}
.steps p{margin-top:10px;color:var(--muted);max-width:46ch}
.hx{position:relative;z-index:1;width:62px;height:70px;display:grid;place-items:center;font:500 16px/1 var(--num);color:var(--amber);background:var(--bg);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%)}
.hx::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--grad);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%,0 25%,2px 26.2%,2px 73.8%,50% calc(100% - 2.3px),calc(100% - 2px) 73.8%,calc(100% - 2px) 26.2%,50% 2.3px,2px 26.2%,0 25%)}
@media (max-width:860px){.proc{grid-template-columns:1fr}.proc-side{position:static}.steps{gap:40px}.steps li{grid-template-columns:52px minmax(0,1fr);gap:18px}.hx{width:52px;height:59px}.steps::before,.steps::after{left:26px}}

/* testimonials */
.voice{background:radial-gradient(60% 80% at 50% 0%,rgba(217,198,160,.07),transparent 70%)}
.quotes{display:grid;max-width:1000px}
.q{grid-area:1/1;margin:0;opacity:0;transform:translateY(16px);transition:opacity .9s,transform 1s var(--ease);pointer-events:none}
.q.on{opacity:1;transform:none;pointer-events:auto}
.q blockquote{margin:0;font-size:clamp(24px,3.2vw,42px);font-stretch:108%;font-weight:300;line-height:1.28;color:var(--ink)}
.q figcaption{margin-top:28px;display:grid;gap:2px}
.q figcaption b{color:var(--amber-l);font-weight:600}
.q figcaption span{color:var(--muted);font-size:14px}
.q-nav{display:flex;gap:10px;margin-top:36px}
.q-nav button{position:relative;width:46px;height:28px;border:0;background:none;cursor:pointer;padding:0}
.q-nav button::before{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:var(--line2)}
.q-nav button::after{content:"";position:absolute;left:0;right:0;top:50%;height:2px;background:var(--amber);transform:scaleX(0);transform-origin:0 50%}
.q-nav button[aria-pressed="true"]::after{animation:qbar 7s linear forwards}
.voice.paused .q-nav button[aria-pressed="true"]::after{animation:none;transform:scaleX(1)}
@keyframes qbar{to{transform:scaleX(1)}}

/* cudan360 network + fanned packages */
.net-sec{overflow:clip}
.net{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(30px,6vw,90px);align-items:center}
.net-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.net-links a{padding:9px 15px;border-radius:var(--pill);border:1px solid var(--line);text-decoration:none;font-size:14px;color:var(--ink2);transition:border-color .3s,color .3s,background-color .3s}
.net-links a:hover{border-color:var(--amber);color:var(--amber-l);background:rgba(217,198,160,.06)}
.net-links a:first-child{background:rgba(217,198,160,.1);border-color:var(--amber);color:var(--amber-l)}
.fan{position:relative;height:clamp(300px,34vw,460px)}
.fan figure{position:absolute;left:50%;top:50%;width:62%;margin:0;translate:-50% -50%;transform:translateX(calc(var(--x)*.55)) rotate(var(--r));transition:transform 1.1s var(--ease);border-radius:var(--r);overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.9);border:1px solid var(--line2)}
.fan figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.fan figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 14px 10px;font-size:13px;color:var(--ink);background:linear-gradient(0deg,rgba(10,12,15,.85),transparent)}
.fan:hover figure,.fan.in.spread figure{transform:translateX(var(--x)) rotate(calc(var(--r)*1.3))}
@media (max-width:860px){.net{grid-template-columns:1fr}.fan{height:300px}.fan figure{width:70%}}

/* final call */
.final{position:relative;min-height:88vh;display:flex;align-items:center;overflow:hidden}
.final>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.38) saturate(.85)}
@supports (animation-timeline:view()){.final>img{animation:drift linear both;animation-timeline:view()}}
@keyframes drift{from{transform:scale(1.15) translateY(-4%)}to{transform:scale(1) translateY(3%)}}
.final::after{content:"";position:absolute;inset:0;background:radial-gradient(70% 90% at 15% 60%,rgba(10,12,15,.2),rgba(10,12,15,.85)),linear-gradient(180deg,var(--bg),transparent 18%,transparent 82%,var(--bg))}
.final-in{position:relative;z-index:1;padding-top:120px;padding-bottom:120px}
.final .h2{max-width:14ch;font-size:clamp(40px,6vw,88px)}
.final-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}

/* ================= FOOTER ================= */
footer{background:var(--bg2);border-top:1px solid var(--line2);padding-top:80px;overflow:hidden;color:var(--muted);font-size:15px}
footer .cols{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.8fr) minmax(0,1.1fr);gap:40px}
.foot-logo{width:230px;margin-bottom:20px}
footer h4{font:500 12.5px/1 var(--num);letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin-bottom:16px}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
footer a{text-decoration:none;color:var(--ink2)}
footer a:hover{color:var(--amber-l)}
.foot-giant{font-size:clamp(120px,30vw,460px);font-stretch:125%;font-weight:600;line-height:.8;letter-spacing:-.04em;text-align:center;margin:60px 0 -0.06em;color:transparent;-webkit-text-stroke:1px rgba(217,198,160,.35);
  background:linear-gradient(100deg,#B9A57F,#D9C6A0 40%,#F2E6CC 55%,transparent 56%) 100% 0/260% 100% no-repeat;-webkit-background-clip:text;background-clip:text;user-select:none}
@supports (animation-timeline:view()){.foot-giant{animation:fill linear both;animation-timeline:view();animation-range:entry 0% cover 60%}}
@keyframes fill{from{background-position:100% 0}to{background-position:0% 0}}
.copy{padding-top:26px;padding-bottom:18px;font-size:13px;color:var(--dim)}
@media (max-width:860px){footer .cols{grid-template-columns:1fr}}

/* ================= INNER PAGES ================= */
.phead{position:relative;padding-top:clamp(130px,16vw,190px);padding-bottom:clamp(50px,7vw,90px);overflow:hidden}
.phead h1{font-size:clamp(40px,6.4vw,96px);font-stretch:120%;font-weight:300;line-height:1.02;letter-spacing:-.02em;max-width:19ch;margin-top:20px}
.plede{font-size:clamp(16.5px,1.4vw,19.5px);color:var(--muted);max-width:56ch;margin-top:24px}
.phead.photo{min-height:78vh;display:flex;align-items:flex-end}
.phead.photo>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.phead.photo>.sk{clip-path:inset(0 100% 0 0);animation:drawIn 1.5s .1s var(--pen) forwards}
.phead.photo>.ph{filter:brightness(.42);--at:70% 35%;animation-delay:1.4s}
.phead.photo::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,var(--bg),rgba(10,12,15,.15) 55%),linear-gradient(90deg,rgba(10,12,15,.75),transparent 70%)}
.phead.photo .wrap{position:relative;z-index:1}
.phead h1,.phead .plede,.crumb{animation:fadeUp 1s .3s var(--ease) both}
.phead .plede{animation-delay:.45s}
.crumb{display:flex;gap:10px;font-size:13.5px;color:var(--muted)}
.crumb a{text-decoration:none}.crumb a:hover{color:var(--amber-l)}
.crumb i{font-style:normal;opacity:.5}

/* dịch vụ */
.subnav{position:sticky;top:72px;z-index:30;background:rgba(10,12,15,.97);border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.subnav .wrap{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding-top:10px;padding-bottom:10px}
.subnav a{flex:none;padding:8px 16px;border-radius:var(--pill);text-decoration:none;font-size:14px;font-weight:500;border:1px solid transparent}
.subnav a:hover,.subnav a.on{border-color:var(--amber);color:var(--amber-l)}
.dv{scroll-margin-top:120px}
.dv.alt{background:linear-gradient(180deg,var(--bg2),var(--bg))}
.dv-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(30px,5vw,80px);align-items:center}
.dv-img{margin:0;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3}
.dv-img img{width:100%;height:100%;object-fit:cover}
@supports (animation-timeline:view()){.dv-img img{animation:par linear both;animation-timeline:view()}}
@keyframes par{from{transform:scale(1.14) translateY(-3%)}to{transform:scale(1.02) translateY(3%)}}
.dv-copy .num{font-size:15px;color:var(--amber);display:block;margin-bottom:16px}
.ticks{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:10px}
.ticks li{position:relative;padding-left:28px;color:var(--ink2)}
.ticks li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:1px;background:var(--amber)}
.eco-figs{display:flex;gap:34px;margin-top:28px;flex-wrap:wrap}
.eco-figs div{display:grid;gap:4px;max-width:20ch}
.eco-figs b{font-size:46px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eco-figs b small{font-size:.5em}
.eco-figs span{font-size:14px;color:var(--muted)}
.flow{list-style:none;padding:0;margin:clamp(50px,7vw,90px) 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:f}
.flow li{position:relative;padding:0 24px 0 0;display:grid;gap:12px;align-content:start}
.flow li::before{content:"";position:absolute;left:62px;right:0;top:35px;height:1px;background:linear-gradient(90deg,var(--line),transparent)}
.flow li:last-child::before{display:none}
.flow h3{font-size:19px;font-stretch:108%;font-weight:500;margin-top:8px}
.flow p{font-size:15px;color:var(--muted)}
@media (max-width:960px){.dv-top{grid-template-columns:1fr}.dv-top .dv-img{order:-1}.flow{grid-template-columns:1fr 1fr;gap:34px 20px}.flow li::before{display:none}}
@media (max-width:560px){.flow{grid-template-columns:1fr}}
.dv-faq{margin-top:clamp(50px,6vw,80px);max-width:900px}
.dv-faq .h3{margin-bottom:10px}
details{border-bottom:1px solid var(--line2)}
summary{list-style:none;cursor:pointer;padding:18px 44px 18px 0;position:relative;font-weight:500;color:var(--ink)}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:6px;top:14px;font:300 26px/1 var(--num);color:var(--amber);transition:transform .4s var(--ease)}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 0 20px;max-width:75ch;color:var(--muted)}
.fee{border-top:1px solid var(--line2);background:radial-gradient(60% 100% at 80% 100%,rgba(51,72,98,.12),transparent 70%)}
.fee .h2{max-width:20ch}
.fee .lede{max-width:70ch}

/* giới thiệu */
.big{font-size:clamp(26px,3.4vw,46px);font-stretch:110%;font-weight:300;line-height:1.25;color:var(--ink);max-width:28ch}
.big em{font-style:normal}
.vm{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,60px);margin-top:70px;max-width:1100px}
.vm p{color:var(--muted);margin-top:14px}
.tri{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.tw{position:relative;padding:50px 30px 46px;outline:none;overflow:hidden}
.tw+.tw{border-left:1px solid var(--line2)}
.tw b{display:block;font-size:clamp(32px,3.5vw,52px);font-stretch:115%;font-weight:300;color:var(--ink);line-height:1;transition:color .6s}
.tw p{margin-top:22px;color:var(--muted);max-width:34ch}
.tw::before{content:"";position:absolute;inset:auto 0 0;height:100%;background:radial-gradient(80% 60% at 50% 100%,rgba(217,198,160,.14),transparent);opacity:0;transition:opacity .8s}
.tw:hover::before,.tw:focus-visible::before{opacity:1}
.tw:hover b,.tw:focus-visible b{color:var(--amber)}
@media (max-width:860px){.vm,.tri{grid-template-columns:1fr}.tw+.tw{border-left:0;border-top:1px solid var(--line2)}.tw{padding:34px 0}}
.princ-in{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(30px,6vw,90px)}
.pl{list-style:none;margin:0;padding:0;display:grid;gap:40px}
.pl li{display:grid;grid-template-columns:62px minmax(0,1fr);gap:24px}
.pl h3{font-size:clamp(20px,1.9vw,26px);font-stretch:110%;margin-top:10px}
.pl p{color:var(--muted);margin-top:10px}
@media (max-width:860px){.princ-in{grid-template-columns:1fr}}
.vg{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:50px}
.vw{position:relative;padding:34px 32px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line2);overflow:hidden}
.vw b{font-size:15px;color:var(--amber)}
.vw h3{font-size:clamp(22px,2.2vw,30px);font-stretch:112%;font-weight:400;margin-top:30px}
.vw p{color:var(--muted);margin-top:10px;max-width:46ch}
.vw:first-child{background:radial-gradient(90% 120% at 100% 0%,rgba(217,198,160,.16),transparent 60%),var(--panel)}
.vw:last-child{background:radial-gradient(90% 120% at 0% 100%,rgba(51,72,98,.18),transparent 60%),var(--panel)}
.spot::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:radial-gradient(260px circle at var(--mx,-300px) var(--my,-300px),var(--amber),transparent 60%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
@media (max-width:700px){.vg{grid-template-columns:1fr}}
.off{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px 60px;align-items:start}
.off .btn{justify-self:start}
@media (max-width:860px){.off{grid-template-columns:1fr}}
.dl{display:grid;gap:0;margin:0}
.dl div{display:grid;grid-template-columns:130px minmax(0,1fr);gap:16px;padding:14px 0;border-bottom:1px solid var(--line2)}
.dl dt{color:var(--dim);font-size:14px}
.dl dd{margin:0;color:var(--ink2)}
.dl a{color:var(--amber-l)}
@media (max-width:480px){.dl div{grid-template-columns:1fr;gap:2px}}

/* cẩm nang */
.art-sec{padding-top:10px}
.arts{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:14px}
.art{grid-column:span 6;padding:clamp(24px,3vw,40px);border-radius:var(--r);background:var(--panel);border:1px solid var(--line2);scroll-margin-top:100px}
.art.a2{grid-column:span 6;grid-row:span 2;background:radial-gradient(90% 60% at 100% 0%,rgba(217,198,160,.1),transparent 60%),var(--panel)}
.art h2{font-size:clamp(24px,2.4vw,34px);font-stretch:112%;font-weight:400;margin-bottom:16px}
.art h3{font-size:17px;font-weight:600;margin:22px 0 8px}
.art p,.art li{color:var(--muted)}
.art ol,.art ul{padding-left:20px;margin:10px 0 0;display:grid;gap:7px}
.art li b{color:var(--ink2);font-weight:600}
.ask-link{display:inline-block;margin-top:22px;color:var(--amber-l);text-decoration:none;font-weight:600}
.ask-link:hover{text-decoration:underline}
@media (max-width:900px){.art,.art.a2{grid-column:1/-1;grid-row:auto}}
.mat{margin-top:18px}
.mat .chips{display:flex;flex-wrap:wrap;gap:6px}
.mat-card{margin-top:16px;padding:22px;border-radius:var(--r);background:var(--bg);border:1px solid var(--line);min-height:210px}
.mat-card h3{margin:0;font-size:22px;font-stretch:112%;font-weight:400;color:var(--ink)}
.mat-card .kind{font:500 12px/1 var(--num);letter-spacing:.18em;text-transform:uppercase;color:var(--amber)}
.mat-card p{margin-top:10px}
.mat-card dl{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:16px 0 0;font-size:14.5px}
.mat-card dt{color:var(--dim)}.mat-card dd{margin:0;color:var(--ink2)}
.mat-card .sw{display:block;height:6px;border-radius:3px;margin-top:16px;background:var(--grad);transform-origin:0 50%;transform:scaleX(var(--v,.5));transition:transform .8s var(--ease)}
.split{display:flex;height:96px;margin:18px 0 6px;border-radius:var(--r);overflow:hidden;gap:2px}
.split i{flex:var(--w) 1 0;min-width:0;display:grid;align-content:end;padding:10px;font-style:normal;background:var(--panel2);transition:flex-grow .8s var(--ease)}
.split i:nth-child(1){background:rgba(51,72,98,.4)}.split i:nth-child(2){background:rgba(217,198,160,.22)}.split i:nth-child(3){background:rgba(217,198,160,.45)}.split i:nth-child(4){background:rgba(242,230,204,.18)}
.split b{font:500 15px/1.1 var(--num);color:var(--ink)}
.split span{font-size:12px;color:var(--ink2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.split i:hover{flex-grow:calc(var(--w) * 1.6)}

/* dự án */
.pj-sec{padding-bottom:110px}
.pj-filter{display:grid;gap:10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;border-radius:var(--pill);border:1px solid var(--line2);background:transparent;color:var(--ink2);cursor:pointer;font-size:14px;font-weight:500;transition:border-color .3s,background-color .3s,color .3s;text-decoration:none}
.chip small{font:500 12px/1 var(--num);color:var(--muted)}
.chip:hover{border-color:var(--amber)}
.chip[aria-pressed="true"],.chip[aria-selected="true"]{background:var(--amber);border-color:var(--amber);color:#0A0C0F}
.chip[aria-pressed="true"] small,.chip[aria-selected="true"] small{color:#2a2418}
.pj-count{margin:26px 0 18px;color:var(--muted);font-size:14px}
.pj-count b{font-family:var(--num);color:var(--amber);font-size:18px}
.pj-grid{columns:3 300px;column-gap:14px}
.pj{display:block;break-inside:avoid;margin-bottom:14px;text-decoration:none;border-radius:var(--r);overflow:hidden;background:var(--panel);border:1px solid var(--line2);transition:border-color .4s,opacity .9s var(--ease),transform 1s var(--ease)}
.pj:hover{border-color:var(--line)}
.pj.off{display:none}
.pj-img{position:relative;display:block;overflow:hidden}
.pj-img img{width:100%;transition:transform 1.4s var(--ease),opacity .8s}
.pj-img .alt{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0}
.pj:hover .pj-img img{transform:scale(1.04)}
.pj:hover .pj-img .alt{opacity:1}
.pj-meta{display:grid;gap:3px;padding:16px 18px 18px}
.pj-meta b{color:var(--ink);font-weight:500;font-size:17px;font-stretch:106%}
.pj-meta small{color:var(--muted);font-size:13.5px}
.pj-meta em{font-style:normal;font:500 11.5px/1.4 var(--num);letter-spacing:.1em;text-transform:uppercase;color:var(--amber);margin-top:6px}
.pj-empty{color:var(--muted);padding:40px 0}
.pj-note{margin-top:34px;font-size:13px;color:var(--dim)}

.pd{margin:0;width:100%;max-width:none;height:100dvh;max-height:none;border:0;padding:0;background:var(--bg);color:var(--ink2)}
.pd[open]{display:flex;flex-direction:column;animation:pdIn .6s var(--ease)}
@keyframes pdIn{from{opacity:0;transform:translateY(30px)}}
.pd::backdrop{background:rgba(0,0,0,.6)}
.pd-top{display:flex;justify-content:space-between;align-items:center;padding:12px var(--gut);border-bottom:1px solid var(--line2)}
.pd-nav{display:flex;gap:8px}
.pd-nav button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line2);background:none;color:var(--ink);cursor:pointer;font-size:18px}
.pd-nav button:hover{border-color:var(--amber)}
.pd-body{flex:1;overflow:auto;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,.8fr);overscroll-behavior:contain}
.pd-gal{padding:14px;position:sticky;top:0;align-self:start}
.pd .walk-stage{aspect-ratio:3/2;background:var(--bg2)}
.pd .walk-stage img{object-fit:contain}
.pd-gal figure{margin:0;border-radius:var(--r);overflow:hidden;background:var(--panel);cursor:zoom-in}
.pd-gal figure img{width:100%;height:auto}
.pd-gal figure:first-child{animation:fadeUp .8s var(--ease)}
.pd-gal .duo{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.pd-info{position:sticky;top:0;align-self:start;padding:34px clamp(20px,3vw,44px) 50px}
.pd-kick{font:500 12px/1.4 var(--num);letter-spacing:.16em;text-transform:uppercase;color:var(--amber)}
.pd h2{font-size:clamp(28px,3vw,44px);font-stretch:115%;font-weight:300;margin-top:14px}
.pd-lead{margin-top:18px;color:var(--ink2)}
.pd-lead+p{margin-top:12px;color:var(--muted)}
.pd .dl{margin-top:26px}
.pd-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
@media (max-width:900px){.pd-body{grid-template-columns:minmax(0,1fr)}.pd-gal{position:static}.pd-info{position:static;padding-top:14px}.pd-gal{padding:10px var(--gut) 0}}

/* lightbox */
#lb{margin:0;width:100%;max-width:none;height:100dvh;max-height:none;border:0;padding:0;background:rgba(6,5,4,.97);color:#fff}
#lb[open]{display:block;animation:fade .35s}
#lb::backdrop{background:transparent}
#lb .fr{position:absolute;inset:58px 64px 64px}
#lb .fr img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:opacity .3s}
#lb.loading .fr img{opacity:.25}
#lb p{position:absolute;left:0;right:0;bottom:18px;text-align:center;font-size:14px;padding:0 70px;color:rgba(255,255,255,.8)}
#lb button{position:absolute;width:48px;height:48px;border-radius:50%;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.06);color:#fff;font-size:20px;cursor:pointer;z-index:2}
#lb .x{top:10px;right:10px;font-size:26px}
#lb .pv{left:10px;top:50%;translate:0 -50%}
#lb .nx{right:10px;top:50%;translate:0 -50%}
@media (max-width:640px){#lb .fr{inset:64px 8px 70px}#lb .pv,#lb .nx{top:auto;bottom:12px;translate:none}#lb p{bottom:74px;padding:0 12px}}

/* liên hệ */
.ct{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(30px,6vw,90px);padding-top:10px}
.ct-phone{display:block;font-size:clamp(44px,6vw,84px);line-height:1;text-decoration:none;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.ct-btns{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.ct-form{padding:clamp(22px,3vw,40px);border-radius:var(--r);background:var(--panel);border:1px solid var(--line2);display:grid;gap:16px;align-content:start}
.fld{display:grid;gap:7px}
.fld.two{grid-template-columns:1fr 1fr;gap:16px}
.fld.two>div{display:grid;gap:7px}
.ct-form label{font-size:14px;color:var(--ink2);font-weight:500}
.ct-form input:not([type=checkbox]),.ct-form select,.ct-form textarea{width:100%;min-height:48px;padding:11px 14px;border-radius:var(--r);border:1px solid rgba(243,237,227,.18);background:var(--bg);color:var(--ink);transition:border-color .3s}
.ct-form textarea{resize:vertical;min-height:96px}
.ct-form input::placeholder,.ct-form textarea::placeholder{color:#8a8175}
.ct-form input:focus,.ct-form select:focus,.ct-form textarea:focus{outline:none;border-color:var(--amber)}
.ct-form select{appearance:none;background:var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23F2B33D' stroke-width='1.5'/%3E%3C/svg%3E") right 14px center no-repeat;padding-right:36px}
.ct-form .btn{justify-self:start}
.ok{display:flex;gap:10px;align-items:flex-start;font-size:13.5px!important;font-weight:400!important;color:var(--muted)!important}
.ok input{margin-top:3px;accent-color:var(--amber);width:18px;height:18px;flex:none}
.ok a{color:var(--amber-l)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px}
.f-msg{min-height:1.4em;font-size:14px;color:#E8A9A0}
.f-msg.good{color:var(--amber-l)}
@media (max-width:900px){.ct{grid-template-columns:1fr}.ct-form{order:-1}}
@media (max-width:520px){.fld.two{grid-template-columns:1fr}}

/* Hỏi AI */
.chat{padding-bottom:30px}
.chat>*{max-width:900px}
.log{display:grid;gap:12px;margin-bottom:18px}
.msg p{white-space:pre-line}
.msg{max-width:88%;padding:16px 20px;border-radius:18px 18px 18px 4px;background:var(--panel);border:1px solid var(--line2);color:var(--ink2)}
.msg.user{justify-self:end;background:var(--amber);color:#0A0C0F;border-color:var(--amber);border-radius:18px 18px 4px 18px}
.msg.thinking p{background:linear-gradient(90deg,var(--muted) 0 40%,var(--amber-l) 50%,var(--muted) 60% 100%);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shim 1.6s linear infinite}
@keyframes shim{from{background-position:100% 0}to{background-position:0 0}}
.srcs{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.srcs a{font-size:12.5px;padding:5px 10px;border-radius:var(--pill);background:rgba(217,198,160,.1);text-decoration:none;color:var(--amber-l)}
.follow{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.follow a{font-size:13px;padding:7px 12px;border-radius:var(--pill);border:1px solid var(--amber);color:var(--amber-l);text-decoration:none}
.sugg-tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.sugg-tabs button{min-height:38px;padding:0 15px;border-radius:var(--pill);border:1px solid var(--line2);background:none;cursor:pointer;font-size:13.5px;color:var(--ink2)}
.sugg-tabs button[aria-pressed="true"]{background:var(--amber);color:#0A0C0F;border-color:var(--amber)}
.sugg{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.sugg button{text-align:left;padding:9px 14px;border-radius:14px;border:1px solid var(--line2);background:var(--panel);cursor:pointer;font-size:14px;color:var(--ink2);transition:border-color .3s}
.sugg button:hover{border-color:var(--amber)}
.sugg button.asked{opacity:.5}
.ask-f{position:sticky;bottom:14px;display:flex;gap:8px;padding:8px;border-radius:var(--pill);background:var(--panel2);border:1px solid var(--line);box-shadow:0 20px 50px -20px rgba(0,0,0,.8)}
.ask-f label{position:absolute;left:-999px}
.ask-f input{flex:1;min-width:0;border:0;background:none;padding:0 16px;color:var(--ink);outline:none}
.ask-f input::placeholder{color:#8a8175}
.ask-f button{min-height:46px;padding:0 24px;border-radius:var(--pill);border:0;background:var(--grad);color:#0A0C0F;font-weight:600;cursor:pointer}
.ask-f button:disabled{opacity:.5}
.note{font-size:13px;color:var(--dim);margin-top:14px}
.faq{max-width:900px}
.faq h2{font-size:clamp(28px,3.4vw,42px);font-stretch:112%;font-weight:300;margin-bottom:22px}

/* Bảng tin */
.nfilter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.nfilter button{min-height:38px;padding:0 16px;border-radius:var(--pill);border:1px solid var(--line2);background:none;cursor:pointer;font-size:14px;color:var(--ink2)}
.nfilter button[aria-pressed="true"]{background:var(--amber);color:#0A0C0F;border-color:var(--amber)}
.nlist{display:grid;gap:14px}
.npost{padding:22px 24px;border-radius:var(--r);background:var(--panel);border:1px solid var(--line2)}
.nmeta{display:flex;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted)}
.ncat{color:var(--amber)}
.npost h2{font-size:24px;margin-top:10px;font-stretch:110%}
.nsum,.nbody{margin-top:10px}
.nbody{white-space:pre-line}
.nmore{margin-top:10px;background:none;border:0;color:var(--amber-l);cursor:pointer;padding:0;font-weight:600}
.nempty{color:var(--muted)}

/* FAB */
.fab{position:fixed;right:18px;bottom:18px;z-index:40;display:inline-flex;align-items:center;gap:10px;padding:7px 20px 7px 7px;border-radius:var(--pill);background:rgba(23,19,15,.92);border:1px solid var(--line);color:var(--ink);text-decoration:none;font-weight:600;font-size:14.5px;box-shadow:0 18px 40px -16px rgba(0,0,0,.9);transition:transform .5s var(--ease),border-color .3s}
.fab:hover{transform:translateY(-3px);border-color:var(--amber)}
.fab span.m{width:40px;height:40px;border-radius:50%;background:var(--grad);display:grid;place-items:center}
.fab span.m i{width:22px;height:25px;background:#0A0C0F;-webkit-mask:url(/img/logo-mark.png) center/contain no-repeat;mask:url(/img/logo-mark.png) center/contain no-repeat}

/* reduced motion: everything lands in place */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .rv{opacity:1;transform:none}
}

/* ---------- conversion layer (marketing rewrite) ---------- */
.proof{border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);background:var(--bg2)}
.proof-in{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.proof-in div{display:grid;gap:4px;padding:24px 20px}
.proof-in div+div{border-left:1px solid var(--line2)}
.proof-in b{font-size:clamp(18px,1.7vw,24px);font-weight:500;color:var(--amber-l)}
.proof-in span{font-size:13.5px;color:var(--muted)}
@media (max-width:860px){.proof-in{grid-template-columns:1fr 1fr}.proof-in div:nth-child(3){border-left:0}.proof-in div:nth-child(n+3){border-top:1px solid var(--line2)}.proof-in div{padding:18px 12px}}
.wa b{color:var(--ink);font-weight:500}
.inline-cta{margin-top:34px;color:var(--muted);font-size:16px}
.inline-cta a{color:var(--amber-l);font-weight:600;text-decoration:none;border-bottom:1px solid var(--line)}
.inline-cta a:hover{border-color:var(--amber-l)}
.walk-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.work-head .lede{max-width:60ch}
.final-note{margin-top:22px;font-size:13.5px;color:var(--muted)}
.dv-copy .hero-cta{opacity:1;animation:none;margin-top:30px}
.next{list-style:none;margin:28px 0 8px;padding:0;display:grid;gap:14px;counter-reset:n}
.next li{position:relative;padding-left:48px;display:grid;gap:2px}
.next li::before{counter-increment:n;content:"0" counter(n);position:absolute;left:0;top:0;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font:500 12px/1 var(--num);color:var(--amber)}
.next b{color:var(--ink);font-weight:500}
.next span{color:var(--muted);font-size:14.5px}
.ct-form details.more{border:1px dashed var(--line2);border-radius:var(--r);padding:0 14px}
.ct-form details.more[open]{padding-bottom:14px;display:grid;gap:16px}
.ct-form details.more summary{padding:13px 30px 13px 0;font-size:14px;font-weight:500;color:var(--ink2)}
.ct-form details.more summary::after{top:8px}
.f-help{font-size:12.5px;color:var(--dim);margin-top:-6px}
.mbar{display:none}
@media (max-width:760px){
  .fab{display:none}
  .mbar{position:fixed;left:8px;right:8px;bottom:calc(8px + env(safe-area-inset-bottom));z-index:45;display:grid;grid-template-columns:1fr 1fr 1fr 1.9fr;gap:4px;padding:5px;border-radius:var(--pill);background:rgba(18,24,32,.97);border:1px solid var(--line);box-shadow:0 14px 40px -12px rgba(0,0,0,.9)}
  .mbar a{display:grid;place-items:center;min-height:44px;border-radius:var(--pill);text-decoration:none;font-size:13.5px;font-weight:600;color:var(--ink2)}
  .mbar a.go{background:var(--grad);color:#0A0C0F}
  body{padding-bottom:70px}
}
.proof-in .free b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}