/* NIVAS Studio: one dark cinematic world. Full-bleed imagery, serif display, thin gold rules, depth from CSS 3D. */
:root{
  --ink:#0F0E0C; --coal:#1C1B19; --line:#3A352E; --paper:#F5F1EA; --sand:#B5AC9E;
  --gold:#C9974B; --gold-hi:#E2B978; --lineapp:#06C755;
  --display:'Noto Serif Thai','Sarabun',serif; --body:'IBM Plex Sans Thai','Sarabun',system-ui,sans-serif;
  --w:1320px; --gap:clamp(72px,10vw,144px);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ink);color:var(--paper);font-family:var(--body);font-size:17px;line-height:1.65;overflow-x:hidden}
img,video{max-width:100%;display:block}
a{color:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--gold-hi);outline-offset:3px}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.2;margin:0;text-wrap:balance}
h1{font-size:clamp(44px,7.2vw,100px);line-height:1.14}
h2{font-size:clamp(30px,4.2vw,56px)}
h3{font-size:22px}
p{margin:0}
.serif{font-family:var(--display)}
.big{font-size:24px}
.muted{color:var(--sand)}
.narrow{max-width:440px}
.eyebrow{font-size:13px;letter-spacing:.28em;color:var(--gold-hi);margin-bottom:12px}
.wrap{max-width:var(--w);margin:0 auto;padding:var(--gap) clamp(16px,3vw,40px) 0}
.row{display:flex;flex-wrap:wrap;gap:14px}
.head{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-end;margin-bottom:40px}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 22px;font:600 15px var(--body);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s,background .2s,color .2s}
.btn:hover{transform:translateY(-2px)}
.btn-lg{min-height:56px;padding:14px 30px;font-size:17px}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-gold:hover{background:var(--gold-hi)}
.btn-line{border-color:var(--paper);color:var(--paper);background:transparent}
.btn-line:hover{border-color:var(--gold-hi);color:var(--gold-hi)}
.btn-dark{background:var(--coal);color:var(--paper)}
.btn-lineapp{background:var(--lineapp);color:var(--ink)}

/* header */
.top{position:fixed;inset:0 0 auto 0;z-index:50;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;padding:16px clamp(16px,3vw,40px);transition:background .3s,padding .3s}
.top.solid{background:rgba(15,14,12,.9);backdrop-filter:blur(10px);padding-block:10px;border-bottom:1px solid var(--line)}
.brand{display:flex;flex-direction:column;line-height:1.1;text-decoration:none}
.brand-a{font:700 24px var(--display);letter-spacing:.2em}
.brand-b{font-size:10px;letter-spacing:.38em;color:var(--gold-hi)}
.nav{display:flex;gap:28px;font-size:15px;font-weight:500}
.nav a{text-decoration:none;padding:8px 0;border-bottom:1px solid transparent}
.nav a:hover{border-color:var(--gold-hi);color:var(--gold-hi)}
.top-cta{display:flex;align-items:center;gap:16px}
.tel{font-weight:600;font-size:15px;text-decoration:none}

/* hero */
.hero{position:relative;min-height:clamp(600px,56vw,860px);display:flex;align-items:flex-end;overflow:hidden}
.hero-media{position:absolute;inset:-4%;transition:transform .4s ease-out}
.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.6s ease;animation:kb 22s ease-in-out infinite alternate}
.hero-media img.on{opacity:1}
@keyframes kb{from{transform:scale(1)}to{transform:scale(1.1) translateY(-1.5%)}}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,14,12,.78) 0%,rgba(15,14,12,.18) 30%,rgba(15,14,12,.42) 60%,rgba(15,14,12,.98) 100%)}
.hero-in{position:relative;width:100%;max-width:var(--w);margin:0 auto;padding:140px clamp(16px,3vw,40px) 64px;display:flex;flex-wrap:wrap;gap:32px;align-items:flex-end;justify-content:space-between}
.hero-copy{max-width:860px;transition:transform .4s ease-out}
.lead{font-size:clamp(17px,1.5vw,20px);color:#E6DED2;max-width:620px;margin:24px 0 36px}
.hero-cap{font-size:13px;color:#CFC5B5}

.strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px 32px;max-width:var(--w);margin:0 auto;padding:32px clamp(16px,3vw,40px);border-bottom:1px solid var(--line)}
.strip div{display:flex;flex-direction:column;gap:2px}
.strip strong{font:600 19px var(--display);color:var(--gold-hi)}
.strip span{font-size:15px;color:var(--sand)}

/* stages: three sheets in depth */
.stages{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,8fr);gap:56px;align-items:center}
.stages-copy{display:flex;flex-direction:column;gap:18px}
.stage-tabs{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.stage-tab{font:inherit;color:var(--paper);text-align:left;background:transparent;border:1px solid var(--line);padding:14px 18px;min-height:64px;display:flex;gap:18px;align-items:center;cursor:pointer;transition:background .3s,border-color .3s}
.stage-tab[aria-pressed="true"]{background:#2B2620;border-color:var(--gold)}
.stage-tab b{font:600 26px var(--display);color:var(--gold-hi);width:40px}
.stage-tab span{display:flex;flex-direction:column;font-weight:600}
.stage-tab small{font-weight:400;font-size:14px;color:var(--sand)}
.stage-scene{position:relative;aspect-ratio:16/11;perspective:1800px}
.sheet{position:absolute;left:3%;top:9%;width:80%;aspect-ratio:16/9;background:var(--paper);border:1px solid var(--line);box-shadow:0 40px 80px rgba(0,0,0,.65);transition:transform .8s cubic-bezier(.2,.7,.2,1),opacity .8s;transform-style:preserve-3d;margin:0}
.sheet img{width:100%;height:100%;object-fit:cover}
.sheet figcaption{position:absolute;left:0;bottom:-34px;font-size:13px;color:var(--sand)}

/* work grid */
.filters{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:500 14px var(--body);min-height:44px;padding:8px 18px;border-radius:999px;border:1px solid #5E574D;background:transparent;color:var(--paper);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--gold);border-color:var(--gold);color:var(--ink)}
.grid-work{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;perspective:1600px}
.card{position:relative;display:flex;align-items:flex-end;height:440px;overflow:hidden;text-decoration:none;transform-style:preserve-3d;transition:transform .25s ease-out,box-shadow .25s;will-change:transform}
.card:hover{box-shadow:0 30px 60px rgba(0,0,0,.6)}
.card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .8s}
.card:hover img{transform:scale(1.06)}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,14,12,0) 45%,rgba(15,14,12,.94) 100%)}
.card-t{position:relative;z-index:1;padding:24px;display:flex;flex-direction:column;gap:4px;transform:translateZ(40px)}
.card-t small{font-size:12px;letter-spacing:.2em;color:var(--gold-hi)}
.card-t strong{font:600 26px var(--display)}
.card-t span{font-size:14px;color:#CFC5B5}
.card[hidden]{display:none}
.badge{position:absolute;z-index:2;top:14px;left:14px;font-size:12px;font-weight:600;padding:5px 10px;letter-spacing:.04em}
.badge-real{background:var(--gold);color:var(--ink)}
.badge-built{background:var(--paper);color:var(--ink)}
.badge-design{background:rgba(15,14,12,.72);color:var(--paper);border:1px solid rgba(245,241,234,.35)}
.grid-pair{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.pair{margin:28px 0 0;display:flex;flex-direction:column;gap:10px;text-decoration:none}
.pair-card{margin:0}
.pair-in{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px}
.pair-in div{position:relative;aspect-ratio:1/1;overflow:hidden;background:var(--coal)}
.pair-in img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.pair:hover .pair-in img{transform:scale(1.04)}
.pair-in span{position:absolute;left:10px;top:10px;font-size:12px;font-weight:600;padding:4px 9px;background:rgba(15,14,12,.75)}
.pair-in span.real{background:var(--gold);color:var(--ink)}
.pair figcaption,.pair strong{font-size:16px;color:#E6DED2}
figure.pair .pair-in div{aspect-ratio:4/3}

/* iso */
.band{background:var(--coal);margin-top:var(--gap)}
.band .wrap{padding-bottom:var(--gap)}
.iso{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.iso-pic{position:relative}
.iso-pic img{width:100%;aspect-ratio:1/1;object-fit:cover}
.dot{position:absolute;width:48px;height:48px;margin:-24px 0 0 -24px;border-radius:50%;border:2px solid var(--paper);background:var(--paper);color:var(--ink);font:600 16px var(--body);cursor:pointer;box-shadow:0 0 0 0 rgba(201,151,75,.6);animation:pulse 2.4s infinite}
.dot[aria-pressed="true"]{background:var(--gold);animation:none;box-shadow:0 0 0 8px rgba(201,151,75,.3)}
@keyframes pulse{70%{box-shadow:0 0 0 16px rgba(201,151,75,0)}100%{box-shadow:0 0 0 0 rgba(201,151,75,0)}}
.iso-side{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.iso-room{width:100%;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--line)}
.iso-room img{width:100%;height:100%;object-fit:cover}

/* interior scrub */
.scrub{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr);gap:56px;align-items:center}
.scrub-view{position:relative;aspect-ratio:3/4;max-height:760px;overflow:hidden;border:1px solid var(--line)}
.scrub-view img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scrub-side{display:flex;flex-direction:column;gap:20px}
.scrub-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
.scrub-steps li{display:flex;gap:18px;align-items:baseline;padding:18px 0;border-top:1px solid var(--line);font:600 24px var(--display);color:#6E665B;transition:color .3s}
.scrub-steps li span{font-size:16px;color:inherit}
.scrub-steps li.on{color:var(--paper)}
.scrub-steps li.on span{color:var(--gold-hi)}
.rangelabel{font-size:14px;color:var(--sand)}
input[type=range]{width:100%;height:44px;accent-color:var(--gold)}

/* services, steps */
.grid-svc{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:40px}
.grid-svc article{display:flex;flex-direction:column;gap:12px}
.grid-svc img{width:100%;aspect-ratio:4/5;object-fit:cover}
.grid-svc p{font-size:15px;color:var(--sand)}
.steps{list-style:none;margin:40px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.steps li{border-top:1px solid var(--gold);padding-top:18px;display:flex;flex-direction:column;gap:6px}
.steps span{font:600 44px/1 var(--display);color:var(--gold-hi)}
.steps p{font-size:15px;color:var(--sand)}

/* pricing */
.grid-price{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.price{border:1px solid var(--line);background:var(--coal);padding:clamp(22px,3vw,36px);display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.price.main{border-color:var(--gold)}
.price-n{font:600 clamp(36px,4vw,52px)/1.1 var(--display);color:var(--gold-hi);font-variant-numeric:tabular-nums}
.price-n small{font:400 16px var(--body);color:var(--sand)}
.price-s{color:var(--sand);font-size:15px}
.price ul{margin:8px 0 0;padding-left:20px;display:flex;flex-direction:column;gap:6px;color:#E6DED2}
.price label{font-size:14px;color:var(--sand)}
.price input{font:400 18px var(--body);padding:12px;min-height:48px;width:100%;border:1px solid #5E574D;background:var(--ink);color:var(--paper)}
.calc-note{font-size:13px;color:var(--sand)}
.price select{font:400 16px var(--body);padding:12px;min-height:48px;width:100%;border:1px solid #5E574D;background:var(--ink);color:var(--paper)}
.price.calc{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:end;border-color:var(--gold)}
.calc-in,.calc-out{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.price-terms{margin-top:20px;font-size:14px;color:var(--sand)}

/* clips */
.social{display:flex;flex-direction:column;gap:4px;font-size:15px;color:var(--sand);text-align:right}
.grid-clips{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.clip{position:relative;aspect-ratio:9/16;overflow:hidden;border:0;padding:0;background:var(--coal);cursor:pointer;color:var(--paper);font:inherit;text-align:left}
.clip img,.clip video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.clip::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,14,12,0) 55%,rgba(15,14,12,.9) 100%);pointer-events:none}
.clip strong{position:absolute;left:16px;right:16px;bottom:14px;z-index:1;font-size:15px}
.clip i{position:absolute;left:calc(50% - 28px);top:calc(50% - 28px);width:56px;height:56px;border-radius:50%;border:1px solid var(--paper);background:rgba(15,14,12,.55);z-index:1}
.clip i::before{content:"";position:absolute;left:22px;top:17px;border-left:16px solid var(--paper);border-top:10px solid transparent;border-bottom:10px solid transparent}
.clip.playing i{display:none}

/* contact */
.contact{position:relative;margin-top:var(--gap);overflow:hidden}
.contact-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.contact-shade{position:absolute;inset:0;background:rgba(15,14,12,.87)}
.contact-in{position:relative;display:grid;grid-template-columns:minmax(0,4fr) minmax(0,5fr);gap:64px;padding-bottom:var(--gap)}
.contact-copy{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.telbig{font-size:22px;font-weight:600}
.form{background:var(--paper);color:var(--coal);padding:clamp(20px,3vw,36px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-content:start}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500}
.form input,.form select,.form textarea{font:400 16px var(--body);padding:12px;min-height:48px;border:1px solid #BDB2A2;background:#fff;color:var(--coal);border-radius:0}
.form .full{grid-column:1/-1}
.form-out{border-top:1px solid #BDB2A2;padding-top:16px;display:flex;flex-direction:column;gap:12px;font-size:15px}
.form-out[hidden]{display:none}
.form-out pre{margin:0;white-space:pre-wrap;font:400 15px var(--body);background:#fff;border:1px solid #BDB2A2;padding:12px}
.form-out .btn-dark{background:var(--coal);color:var(--paper)}

.foot{background:#0A0908;color:var(--sand);font-size:14px}
.foot-in{display:flex;flex-wrap:wrap;gap:32px;justify-content:space-between;padding-top:56px;padding-bottom:96px}
.foot strong{color:var(--paper)}
.foot-brand{font-size:22px;font-weight:700;letter-spacing:.2em;color:var(--paper)}

.mbar{display:none}

/* project view */
.p-hero{position:relative;min-height:clamp(560px,52vw,820px);display:flex;align-items:flex-end;overflow:hidden}
.p-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.p-hero-in{position:relative;width:100%;max-width:var(--w);margin:0 auto;padding:150px clamp(16px,3vw,40px) 56px;display:flex;flex-wrap:wrap;gap:40px;justify-content:space-between;align-items:flex-end}
.crumb{font-size:14px;margin-bottom:18px;display:flex;gap:8px;color:#CFC5B5}
.p-hero h1{font-size:clamp(40px,6vw,84px)}
.facts{margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px;flex:0 1 440px;font-size:15px}
.facts div{border-top:1px solid var(--gold);padding-top:10px}
.facts dt{font-size:13px;color:#CFC5B5}
.facts dd{margin:0;font-weight:600}
.story{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px}
.story p,.story li{color:#E6DED2}
.story ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.gallery{columns:3;column-gap:16px;margin-top:32px}
.gallery button{display:block;width:100%;padding:0;border:0;background:none;margin:0 0 16px;cursor:zoom-in;break-inside:avoid}
.gallery img{width:100%}
.compare{position:relative;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--line);margin-top:28px}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.compare .bar{position:absolute;top:0;bottom:0;width:2px;background:var(--gold)}
.compare span{position:absolute;top:16px;background:rgba(15,14,12,.78);padding:6px 12px;font-size:13px}
.draw{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.draw figure{margin:0;display:flex;flex-direction:column;gap:10px}
.draw button{padding:0;border:0;background:var(--paper);cursor:zoom-in}
.draw img{width:100%;aspect-ratio:16/9;object-fit:cover}
.draw figcaption{font-size:14px;color:var(--sand)}
.model{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:56px;align-items:center}
.model-copy{display:flex;flex-direction:column;gap:16px}
.stagebox{position:relative;aspect-ratio:16/11;background:radial-gradient(ellipse at 50% 60%,#2B2620 0%,var(--coal) 70%);border:1px solid var(--line);overflow:hidden;perspective:1500px;touch-action:none;cursor:grab;user-select:none}
.stagebox:active{cursor:grabbing}
.rig{position:absolute;left:50%;top:60%;width:0;height:0;transform-style:preserve-3d}
.pl{position:absolute;background:var(--paper);overflow:hidden;box-shadow:0 0 0 1px rgba(15,14,12,.35)}
.pl img{width:100%;height:100%;object-fit:cover;pointer-events:none}
.stagebox small{position:absolute;right:16px;bottom:12px;color:var(--gold-hi);font-size:13px}
.cta{border:1px solid var(--gold);padding:clamp(28px,5vw,64px);display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:center}
.next{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px;padding-bottom:var(--gap)}
.next .card{height:360px}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(10,9,8,.96);display:flex;align-items:center;justify-content:center;padding:56px 16px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain}
.lightbox p{position:absolute;left:0;right:0;bottom:14px;text-align:center;font-size:14px;color:var(--sand)}
.lb-btn{position:absolute;min-width:48px;min-height:48px;background:rgba(28,27,25,.85);color:var(--paper);border:1px solid var(--line);font:500 15px var(--body);cursor:pointer}
.lb-close{top:12px;right:12px;padding:0 16px}
.lb-prev{left:12px;top:50%;font-size:28px}
.lb-next{right:12px;top:50%;font-size:28px}

@media (max-width:1000px){
  .nav{gap:16px;font-size:14px;order:3;width:100%;justify-content:flex-start;overflow-x:auto}
  .top-cta .tel{display:none}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stages,.iso,.scrub,.contact-in,.model,.grid-price{grid-template-columns:minmax(0,1fr);gap:32px}
  .grid-work,.next,.grid-pair{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-svc{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-clips{grid-template-columns:repeat(3,minmax(0,1fr))}
  .story{grid-template-columns:minmax(0,1fr);gap:28px}
  .gallery{columns:2}
  .social{text-align:left}
}
@media (max-width:640px){
  body{font-size:16px;padding-bottom:72px}
  .top-cta .btn{display:none}
  .nav{width:auto;order:0}
  .nav a:nth-child(2),.nav a:nth-child(4){display:none}
  .hero{min-height:680px}
  .strip,.grid-work,.next,.draw,.grid-pair{grid-template-columns:minmax(0,1fr)}
  .card{height:420px}
  .grid-clips{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:minmax(0,1fr)}
  .form{grid-template-columns:minmax(0,1fr)}
  .price.calc{grid-template-columns:minmax(0,1fr)}
  .mbar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;position:fixed;inset:auto 0 0 0;z-index:60;background:rgba(15,14,12,.96);border-top:1px solid var(--line);padding:10px 12px 12px}
  .mbar a{min-height:48px;display:flex;align-items:center;justify-content:center;border:1px solid var(--paper);text-decoration:none;font-weight:600;font-size:15px}
  .mbar .mbar-line{background:var(--lineapp);border-color:var(--lineapp);color:var(--ink)}
  .foot-in{padding-bottom:40px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
}