/* Hall — estúdio de arquitetura fictício (projeto demonstrativo da NeroTech). Off-white, grafite, serifa editorial. */
:root{--paper:#efece6;--paper-2:#e4e0d8;--ink:#23231f;--soft:#6d6a62;--line:#23231f26;--serif:'Instrument Serif',Georgia,serif;--sans:'Inter Tight',system-ui,sans-serif;--m:clamp(18px,4vw,64px)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font:400 16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:clip}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.demo{padding:10px var(--m);background:var(--ink);color:var(--paper);font-size:13px}
.demo a{color:var(--paper);margin-left:8px}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:18px var(--m);background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px)}
.mark{font:400 34px/1 var(--serif);text-decoration:none;letter-spacing:-.01em}
.mark span{font:500 11px var(--sans);letter-spacing:.2em;text-transform:uppercase;margin-left:10px;color:var(--soft);vertical-align:middle}
.top nav{display:flex;gap:28px;font-size:14px}
.top nav a{text-decoration:none;padding:6px 0}
.top nav a:hover{text-decoration:underline;text-underline-offset:5px}

.hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(24px,5vw,96px);align-items:end;padding:clamp(28px,5vw,72px) var(--m) clamp(56px,8vw,120px)}
.kicker{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--soft)}
.hero h1{font:400 clamp(46px,5.6vw,96px)/.94 var(--serif);letter-spacing:-.02em;margin-top:22px}
.hero h1 em{display:block;color:var(--soft)}
.lede{max-width:34ch;margin-top:28px;font-size:18px}
.link-arrow{display:inline-flex;gap:10px;align-items:center;margin-top:28px;font-weight:500;text-decoration:none;border-bottom:1px solid var(--ink);padding:4px 0}
.link-arrow::after{content:'→';transition:translate .3s}
.link-arrow:hover::after{translate:4px 0}
.hero-img{position:relative}
.hero-img img{width:100%;aspect-ratio:4/5;object-fit:cover;max-height:82vh}
.hero-img figcaption,.credit{font-size:12px;color:var(--soft);margin-top:10px}
.hero-img figcaption span{font-variant-numeric:tabular-nums;margin-right:8px;color:var(--ink)}
.hero-img figcaption i{font-style:normal;float:right}

.work{padding:clamp(48px,7vw,110px) var(--m);border-top:1px solid var(--line)}
.work-head{display:flex;justify-content:space-between;align-items:baseline;gap:20px;flex-wrap:wrap}
.work-head h2,.studio h2,.contact h2{font:400 clamp(44px,5vw,84px)/1 var(--serif);letter-spacing:-.02em}
.work-head p{color:var(--soft)}
.work-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,4vw,72px);margin-top:clamp(28px,4vw,56px)}
.work-list{list-style:none;border-top:1px solid var(--line);align-self:start}
.work-list button{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:baseline;width:100%;padding:18px 0;border-bottom:1px solid var(--line);text-align:left;transition:padding .3s cubic-bezier(.2,.7,.2,1)}
.work-list .n{font-size:12px;color:var(--soft);font-variant-numeric:tabular-nums}
.work-list .t{font:400 clamp(24px,2.2vw,34px)/1.1 var(--serif)}
.work-list .y{font-size:13px;color:var(--soft)}
.work-list button:hover .t{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:1px}
.work-list [aria-current=true]{padding-left:14px}
.work-list [aria-current=true] .t{font-style:italic}
.work-view{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--paper-2)}
.work-view img{width:100%;height:100%;object-fit:cover;transition:opacity .5s ease,transform 1.2s cubic-bezier(.2,.7,.2,1)}
.work-view img.is-out{opacity:0;transform:scale(1.02)}
.plan{position:absolute;inset:0;width:100%;height:100%;background:var(--paper);padding:6%}
.plan rect,.plan path,.plan line{fill:none;stroke:var(--ink);stroke-width:1.4}
.plan .wall{stroke-width:4}
.plan .room text{font:400 11px var(--sans);fill:var(--soft)}
.plan .north{font:500 10px var(--sans);fill:var(--ink)}
.work-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:16px;flex-wrap:wrap}
.toggle{display:inline-flex;border:1px solid var(--ink);border-radius:999px;padding:3px}
.toggle button{padding:7px 16px;border-radius:999px;font-size:14px}
.toggle [aria-pressed=true]{background:var(--ink);color:var(--paper)}
.work-bar .link-arrow{margin-top:0}
.work-text{margin-top:24px;max-width:58ch}
.work-text h3{font:400 34px/1.1 var(--serif)}
.work-text p{margin-top:10px}

.studio{padding:clamp(56px,8vw,120px) var(--m);background:var(--ink);color:var(--paper)}
.studio-cols{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(28px,5vw,96px);margin-top:40px}
.studio-big{font:400 clamp(30px,3.2vw,52px)/1.15 var(--serif)}
.principles{list-style:none;display:grid;gap:24px;align-content:start}
.principles li{display:grid;gap:4px;padding-top:16px;border-top:1px solid #efece633}
.principles b{font-weight:600}
.principles span{color:#c9c5bc}

.contact{padding:clamp(56px,8vw,120px) var(--m)}
.contact form{display:grid;grid-template-columns:1fr 1fr;gap:18px 24px;max-width:860px;margin-top:36px}
.contact label{display:grid;gap:6px;font-size:13px;color:var(--soft)}
.contact .wide{grid-column:1/-1}
.contact input,.contact select,.contact textarea{padding:12px 0;border:0;border-bottom:1px solid var(--ink);background:none;font-size:17px;color:var(--ink);border-radius:0}
.contact button[type=submit]{justify-self:start;padding:14px 28px;background:var(--ink);color:var(--paper);border-radius:999px;font-weight:500}
.form-msg{grid-column:1/-1;font-size:14px}

.sheet{border:0;padding:0;margin:auto;width:min(1100px,94vw);max-height:90vh;background:var(--paper);color:var(--ink);display:none}
.sheet[open]{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr)}
.sheet::backdrop{background:#23231fb3}
.sheet img{width:100%;height:100%;max-height:90vh;object-fit:cover}
.sheet-body{padding:clamp(24px,3vw,48px);overflow:auto}
.sheet-body h2{font:400 clamp(36px,3.6vw,56px)/1 var(--serif);margin-top:12px}
.sheet-body p{margin-top:14px}
.sheet dl{display:grid;grid-template-columns:auto 1fr;gap:8px 20px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line);font-size:14px}
.sheet dt{color:var(--soft)}
.sheet form{position:absolute;right:12px;top:10px;z-index:2}
.sheet-close{width:44px;height:44px;border-radius:50%;background:var(--paper);font-size:24px}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:28px var(--m);border-top:1px solid var(--line);font-size:13px;color:var(--soft)}

@media(max-width:860px){
  .top nav{gap:16px}
  .hero,.work-grid,.studio-cols{grid-template-columns:1fr}
  .hero-img{order:-1}
  .hero-img img{aspect-ratio:4/4.4}
  .work-list .y{display:none}
  .contact form{grid-template-columns:1fr}
  .sheet[open]{grid-template-columns:1fr;overflow:auto}
  .sheet img{max-height:40vh}
}
@media(max-width:480px){.mark span{display:none}.top nav{font-size:13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}