:root{--bg:#0e0e10;--bg2:#161619;--fg:#f2f2f2;--muted:#9a9aa3;--accent:#e0b34a;--line:#26262b;--w:1100px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font:16px/1.6 Inter,system-ui,sans-serif}
h1,h2,h3{font-family:"Space Grotesk",Inter,sans-serif;line-height:1.1}
a{color:inherit;text-decoration:none}
section{max-width:var(--w);margin:0 auto;padding:80px 20px}
h2{font-size:clamp(28px,4vw,40px);margin-bottom:28px}
.nav{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:rgba(14,14,16,.85);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.logo{font-family:"Space Grotesk";font-weight:700;color:var(--accent)}
.nav nav a{margin-left:22px;color:var(--muted)}
.nav nav a:hover{color:var(--fg)}
#hero{min-height:80vh;display:flex;flex-direction:column;justify-content:center}
.eyebrow{color:var(--accent);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:16px}
h1{font-size:clamp(44px,8vw,96px);letter-spacing:-.02em}
.tagline{font-size:clamp(18px,2.5vw,26px);color:var(--muted);margin:12px 0 20px}
.lede{max-width:560px;color:var(--muted);margin-bottom:32px}
.btn{display:inline-block;padding:12px 22px;border:1px solid var(--accent);color:var(--accent);border-radius:6px;font-weight:500}
.btn:hover{background:var(--accent);color:var(--bg)}
.section-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px}
.section-head h2{margin:0}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.filters button,.filter-link{padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:none;color:var(--muted);font:inherit;font-size:14px;cursor:pointer}
.filters button.active,.filters button:hover,.filter-link:hover{border-color:var(--accent);color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{display:block;background:var(--bg2);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:var(--accent)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.card-body{padding:16px}
.card h3{font-size:18px;margin-bottom:4px}
.card p{color:var(--muted);font-size:14px}
.tags{margin-top:10px;display:flex;gap:6px;flex-wrap:wrap}
.tags span{font-size:12px;padding:3px 8px;border-radius:999px;background:var(--bg);color:var(--muted);border:1px solid var(--line)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:32px}
.cols h3{color:var(--accent);font-size:18px;margin-bottom:12px}
.cols ul{list-style:none}
.cols li{padding:6px 0;border-bottom:1px solid var(--line);color:var(--muted)}
#about p{max-width:680px;color:var(--muted);margin-bottom:16px}
#contact a{color:var(--accent)}
footer{text-align:center;color:var(--muted);font-size:13px;padding:32px 20px;border-top:1px solid var(--line)}
@media (max-width:600px){.nav nav a{margin-left:14px;font-size:14px}section{padding:56px 16px}}

#webgl{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.nav,section,footer{position:relative;z-index:1}
.hero{min-height:100vh}
.hero h1,.hero .tagline,.hero .lede,.hero .btn,.hero .eyebrow{opacity:0}
.stats{display:flex;gap:36px;margin-top:56px;flex-wrap:wrap}
.stats b{display:block;font:700 40px/1 "Space Grotesk",sans-serif;color:var(--accent)}
.stats span{font-size:13px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.reveal{opacity:0;transform:translateY(24px)}
#work,#skills,#about,#contact{background:linear-gradient(180deg,rgba(14,14,16,0) 0%,rgba(14,14,16,.92) 12%,rgba(14,14,16,.92) 100%)}
.card{will-change:transform}

/* project page */
.project main{max-width:var(--w);margin:0 auto;padding:0 20px 40px}
.project section{padding:40px 0}
.p-hero{padding-top:24px}
.p-cover{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;display:block;border:1px solid var(--line)}
.p-head{margin-top:32px}
.p-head h1{font-size:clamp(36px,6vw,72px)}
.p-body{display:grid;grid-template-columns:220px 1fr;gap:40px;border-top:1px solid var(--line)}
.p-meta div{margin-bottom:18px}
.p-meta span{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.p-meta b{font-weight:500}
.p-text p{color:var(--muted);margin-bottom:14px;max-width:640px}
.p-text .lede{color:var(--fg);font-size:19px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.gallery img{width:100%;border-radius:10px;border:1px solid var(--line);display:block}
.ba{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba-top{clip-path:inset(0 50% 0 0)}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.viewer{aspect-ratio:16/9;border:1px dashed var(--line);border-radius:12px;display:grid;place-items:center;color:var(--muted)}
.p-nav{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);color:var(--accent);flex-wrap:wrap}
.loading{color:var(--muted);padding:80px 0}
@media (max-width:700px){.p-body{grid-template-columns:1fr;gap:20px}}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse 70% 80% at 25% 50%,rgba(14,14,16,.92) 0%,rgba(14,14,16,.7) 45%,rgba(14,14,16,.15) 100%)}
.hero{position:relative}
.hero h1,.hero .tagline{text-shadow:0 2px 24px rgba(0,0,0,.8)}
.hero .lede{color:#c9c9d1}
#webgl{opacity:.75}

.hero .btn{align-self:flex-start}
#journey{background:linear-gradient(180deg,rgba(14,14,16,0) 0%,rgba(14,14,16,.92) 12%,rgba(14,14,16,.92) 100%)}
#journey .lede{margin-bottom:48px}
.tl{position:relative;padding-left:40px}
.tl-line{position:absolute;left:8px;top:0;bottom:0;width:2px;background:var(--line)}
.tl-line span{display:block;width:100%;height:0;background:var(--accent)}
.tl-item{position:relative;margin-bottom:44px;max-width:640px}
.tl-item::before{content:"";position:absolute;left:-38px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--bg);border:2px solid var(--line);transition:border-color .3s,background .3s}
.tl-item.on::before{border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 6px rgba(224,179,74,.15)}
.tl-item time{font-size:13px;letter-spacing:.08em;color:var(--accent);text-transform:uppercase}
.tl-item h3{font-size:22px;margin:4px 0 8px}
.tl-item p{color:var(--muted)}
.tl-now h3{color:var(--accent)}
@media (max-width:600px){.tl{padding-left:28px}.tl-item::before{left:-26px}}

.card .role{color:var(--accent);font-size:13px;margin-bottom:2px}
.more{margin-top:72px}
.more-title{font-size:clamp(24px,3vw,32px);margin-bottom:8px}
.more .lede{margin-bottom:28px}
.more-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px 40px}
.more-group h3{font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:8px;display:flex;justify-content:space-between}
.more-group h3 span{color:var(--muted);font-weight:400;letter-spacing:0;text-transform:none}
.more-row{display:grid;grid-template-columns:1fr;padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.more-row b{font-weight:500}
.more-row span{color:var(--muted);font-size:13px}
.did-h{font-size:20px;margin:28px 0 12px}
.did{list-style:none;max-width:640px}
.did li{padding:8px 0 8px 22px;border-bottom:1px solid var(--line);color:var(--muted);position:relative}
.did li::before{content:"";position:absolute;left:0;top:16px;width:10px;height:2px;background:var(--accent)}

/* BIM viewer */
.viewer{aspect-ratio:16/10;border:1px solid var(--line);border-radius:12px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 50% 30%,#1c1c22,#0e0e10);display:block;min-height:420px}
.viewer-hint{color:var(--muted);margin:-12px 0 16px;font-size:14px}
.bv-wrap,.bv-canvas{position:absolute;inset:0;width:100%;height:100%}
.bv-ui{position:absolute;left:12px;top:12px;display:flex;flex-direction:column;gap:8px;z-index:2;pointer-events:none}
.bv-toggles{display:flex;gap:6px;flex-wrap:wrap;pointer-events:auto}
.bv-toggles button{font:500 12px Inter,sans-serif;padding:6px 10px;border-radius:999px;border:1px solid var(--line);background:rgba(14,14,16,.8);color:var(--muted);cursor:pointer}
.bv-toggles button.on{border-color:var(--accent);color:var(--accent)}
.bv-cut{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px;pointer-events:auto;background:rgba(14,14,16,.8);padding:6px 10px;border-radius:999px;border:1px solid var(--line)}
.bv-cut input{width:120px;accent-color:var(--accent)}
.bv-stats{font-size:11px;color:var(--muted);letter-spacing:.04em}
.bv-panel{position:absolute;right:12px;top:12px;bottom:12px;width:min(300px,80%);background:rgba(14,14,16,.92);border:1px solid var(--line);border-radius:10px;padding:16px;overflow:auto;z-index:3;backdrop-filter:blur(6px)}
.bv-panel h4{font-size:16px;margin:0 28px 4px 0}
.bv-sub{color:var(--accent);font-size:12px;margin-bottom:12px}
.bv-panel dl{display:grid;grid-template-columns:1fr 1fr;gap:4px 10px;font-size:12px}
.bv-panel dt{color:var(--muted)}.bv-panel dd{margin:0;word-break:break-word}
.bv-close{position:absolute;right:8px;top:6px;background:none;border:0;color:var(--muted);font-size:20px;cursor:pointer}
.bv-loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--muted);font-size:14px;z-index:1}