/* BUILT V4 — studio-grade interaction layer */
html{scroll-behavior:smooth}body{position:relative}body:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:1000;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='96' viewBox='0 0 96 96'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");mix-blend-mode:soft-light}.page-progress{position:fixed;top:0;left:0;height:2px;background:var(--accent);width:0;z-index:2000;box-shadow:0 0 18px color-mix(in srgb,var(--accent) 70%,transparent)}
.nav{transition:height .35s ease,box-shadow .35s ease,background .35s ease}.nav.is-scrolled{height:64px;box-shadow:0 18px 50px rgba(0,0,0,.08)}.hero{overflow:hidden;position:relative}.hero:after{content:"";position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.7}.hero-copy>*{position:relative;z-index:2}.hero h1{text-wrap:balance}.hero-media:before{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;background:linear-gradient(110deg,transparent 60%,color-mix(in srgb,var(--accent) 20%,transparent));mix-blend-mode:screen;opacity:.5}.hero-media img{transform:scale(1.02);transition:transform 1.2s cubic-bezier(.16,1,.3,1),filter .5s}.hero-media:hover img{transform:scale(1.055)}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .85s cubic-bezier(.16,1,.3,1),transform .85s cubic-bezier(.16,1,.3,1)}.reveal.is-visible{opacity:1;transform:none}.reveal-stagger>*{opacity:0;transform:translateY(22px);transition:opacity .75s,transform .75s}.reveal-stagger.is-visible>*{opacity:1;transform:none}.reveal-stagger.is-visible>*:nth-child(2){transition-delay:.08s}.reveal-stagger.is-visible>*:nth-child(3){transition-delay:.16s}.reveal-stagger.is-visible>*:nth-child(4){transition-delay:.24s}.reveal-stagger.is-visible>*:nth-child(5){transition-delay:.32s}.reveal-stagger.is-visible>*:nth-child(6){transition-delay:.4s}
.btn,.nav-cta,.pill{position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s,background .25s,color .25s}.btn:before,.nav-cta:before{content:"";position:absolute;inset:0;transform:translateX(-110%);background:linear-gradient(100deg,transparent,rgba(255,255,255,.25),transparent);transition:transform .65s}.btn:hover:before,.nav-cta:hover:before{transform:translateX(110%)}.btn:hover,.nav-cta:hover{transform:translateY(-2px)}.project-card{position:relative;transition:transform .5s cubic-bezier(.16,1,.3,1),box-shadow .5s}.project-card:hover{transform:translateY(-8px);box-shadow:0 28px 70px rgba(0,0,0,.16)}.project-card .img{position:relative}.project-card .img:after{content:"VIEW PROJECT ↗";position:absolute;right:14px;bottom:14px;padding:9px 11px;background:rgba(10,10,10,.72);color:#fff;font-size:9px;letter-spacing:.12em;transform:translateY(10px);opacity:0;transition:.35s}.project-card:hover .img:after{opacity:1;transform:none}.service-row{transition:padding .35s,background .35s}.service-row:hover{padding-left:14px;padding-right:14px;background:color-mix(in srgb,var(--accent) 7%,transparent)}.service-row h3{transition:transform .35s}.service-row:hover h3{transform:translateX(5px)}
.studio-rail{display:flex;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);white-space:nowrap}.studio-rail-track{display:flex;gap:48px;padding:12px 0;animation:rail 26s linear infinite}.studio-rail span{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}.studio-rail b{color:var(--accent)}@keyframes rail{to{transform:translateX(-50%)}}
.signature{padding:clamp(70px,7vw,112px) clamp(22px,5vw,76px);position:relative;overflow:hidden}.signature:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-170px;top:-180px;background:var(--accent);filter:blur(140px);opacity:.08;pointer-events:none}.signature-head{display:grid;grid-template-columns:.8fr 1.2fr;gap:38px;margin-bottom:42px;align-items:end}.signature-head h2{font-size:clamp(40px,5vw,78px);line-height:.93;letter-spacing:-.05em;margin:10px 0 0}.signature-head p{color:var(--muted);line-height:1.65;max-width:600px;margin:0}.signature-shell{border:1px solid var(--line);background:color-mix(in srgb,var(--panel) 88%,transparent);box-shadow:0 36px 100px rgba(0,0,0,.12);position:relative}.sig-top{display:flex;justify-content:space-between;gap:18px;padding:14px 18px;border-bottom:1px solid var(--line);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.sig-grid{display:grid;grid-template-columns:.9fr 1.1fr;min-height:430px}.sig-side{padding:28px;border-right:1px solid var(--line)}.sig-main{padding:28px}.sig-label{font-size:9px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted)}.sig-value{font-size:clamp(32px,4vw,58px);line-height:1;margin:10px 0 22px}.sig-list{display:grid;gap:8px}.sig-choice{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:14px;border:1px solid var(--line);background:transparent;color:var(--fg);transition:.25s}.sig-choice:hover,.sig-choice.active{background:var(--accent);color:var(--accentText);border-color:var(--accent);transform:translateX(4px)}.sig-choice small{opacity:.7}.sig-output{padding:18px;border:1px solid var(--line);min-height:110px;line-height:1.55;background:color-mix(in srgb,var(--bg) 76%,transparent)}.sig-meter{height:8px;background:color-mix(in srgb,var(--fg) 10%,transparent);overflow:hidden;margin:14px 0}.sig-meter>i{display:block;height:100%;background:var(--accent);width:50%;transition:width .5s cubic-bezier(.16,1,.3,1)}
.project-drawer-trigger{position:fixed;right:22px;bottom:22px;z-index:80;background:var(--accent);color:var(--accentText);border:0;padding:15px 18px;font-size:10px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;box-shadow:0 16px 45px rgba(0,0,0,.22)}.project-drawer{position:fixed;inset:0;z-index:200;pointer-events:none}.project-drawer.open{pointer-events:auto}.drawer-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.48);opacity:0;transition:.4s;backdrop-filter:blur(5px)}.project-drawer.open .drawer-backdrop{opacity:1}.drawer-panel{position:absolute;right:0;top:0;height:100%;width:min(520px,100%);background:var(--bg);border-left:1px solid var(--line);transform:translateX(105%);transition:transform .55s cubic-bezier(.16,1,.3,1);padding:28px;overflow:auto}.project-drawer.open .drawer-panel{transform:none}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:36px}.drawer-head button{background:none;color:var(--fg);border:1px solid var(--line);width:38px;height:38px}.drawer-panel h2{font-size:46px;line-height:.95;letter-spacing:-.045em;margin:0 0 14px}.drawer-step{display:none}.drawer-step.active{display:block}.drawer-options{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin:20px 0}.drawer-option{padding:14px;border:1px solid var(--line);background:transparent;color:var(--fg);text-align:left}.drawer-option.active{background:var(--accent);color:var(--accentText);border-color:var(--accent)}.drawer-actions{display:flex;justify-content:space-between;gap:10px;margin-top:26px}.drawer-progress{display:flex;gap:6px;margin:18px 0 30px}.drawer-progress i{height:3px;flex:1;background:color-mix(in srgb,var(--fg) 12%,transparent)}.drawer-progress i.active{background:var(--accent)}
.mobile-bar{display:none}.counter[data-count]{font-variant-numeric:tabular-nums}.cursor-label{position:fixed;z-index:150;pointer-events:none;transform:translate(-50%,-50%) scale(.7);opacity:0;background:var(--accent);color:var(--accentText);padding:9px 11px;font-size:9px;font-weight:900;letter-spacing:.1em;transition:opacity .2s,transform .2s}.cursor-label.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
/* bespoke components */
.control-board{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:12px 0 20px}.control-cell{padding:12px 9px;border:1px solid var(--line);min-height:100px;display:flex;flex-direction:column;justify-content:space-between;transition:.3s}.control-cell.active{background:var(--accent);color:var(--accentText);transform:translateY(-4px)}.control-cell small{font-size:9px;letter-spacing:.08em}.control-cell b{font-size:12px}.diagram{position:relative;height:230px;margin:15px 0}.diagram-line{position:absolute;left:8%;right:8%;top:50%;height:2px;background:color-mix(in srgb,var(--fg) 16%,transparent)}.diagram-line:after{content:"";display:block;height:100%;width:var(--flow,20%);background:var(--accent);box-shadow:0 0 22px var(--accent);transition:width .6s}.diagram-nodes{position:absolute;inset:0;display:flex;align-items:center;justify-content:space-around}.diagram-node{width:62px;height:62px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--fg);display:grid;place-items:center;font-size:9px;text-align:center;padding:5px;transition:.3s}.diagram-node.active{background:var(--accent);color:var(--accentText);transform:scale(1.12)}.thermostat{width:min(290px,80vw);aspect-ratio:1;border-radius:50%;border:1px solid var(--line);margin:10px auto;display:grid;place-items:center;position:relative;background:radial-gradient(circle,color-mix(in srgb,var(--accent) 10%,transparent),transparent 60%)}.thermostat:before{content:"";position:absolute;inset:16px;border:1px dashed color-mix(in srgb,var(--fg) 20%,transparent);border-radius:50%}.thermo-temp{font-size:72px;letter-spacing:-.06em}.thermo-range{width:100%;margin-top:22px}.emergency-state{padding:20px;border-left:4px solid var(--accent);background:color-mix(in srgb,var(--accent) 7%,var(--panel));min-height:150px}.season-stage{height:320px;position:relative;overflow:hidden}.season-stage img{position:absolute;inset:0;opacity:0;transition:opacity .65s,transform 1.2s;transform:scale(1.04)}.season-stage img.active{opacity:1;transform:scale(1)}.performance-bars{display:grid;gap:18px}.performance-row{display:grid;grid-template-columns:110px 1fr 42px;gap:12px;align-items:center}.performance-row input{width:100%}.scope-map{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.room-tile{padding:20px;border:1px solid var(--line);min-height:110px;background:transparent;color:var(--fg);text-align:left}.room-tile.active{background:var(--accent);color:var(--accentText)}.brick-wall{height:260px;border:1px solid var(--line);background-color:#a9553b;transition:.4s}.brick-wall.running{background-image:linear-gradient(#d9c1a8 3px,transparent 3px),linear-gradient(90deg,#d9c1a8 3px,transparent 3px);background-size:90px 42px;background-position:0 0}.brick-wall.stack{background-image:linear-gradient(#d9c1a8 3px,transparent 3px),linear-gradient(90deg,#d9c1a8 3px,transparent 3px);background-size:72px 42px}.brick-wall.flemish{background-image:linear-gradient(#d9c1a8 3px,transparent 3px),repeating-linear-gradient(90deg,transparent 0 44px,#d9c1a8 44px 47px,transparent 47px 88px,#d9c1a8 88px 91px);background-size:100% 42px}.shutdown-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.shutdown-card{min-height:150px;padding:14px;border:1px solid var(--line);background:transparent;color:var(--fg);text-align:left}.shutdown-card.active{background:var(--accent);color:var(--accentText);transform:translateY(-5px)}
@media(max-width:900px){.signature-head,.sig-grid{grid-template-columns:1fr}.sig-side{border-right:0;border-bottom:1px solid var(--line)}.control-board,.shutdown-grid{grid-template-columns:repeat(3,1fr)}.scope-map{grid-template-columns:1fr 1fr}.project-drawer-trigger{display:none}.mobile-bar{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:75;background:var(--bg);border-top:1px solid var(--line);padding:10px 12px;gap:8px}.mobile-bar a,.mobile-bar button{flex:1;padding:12px 8px;text-align:center;border:1px solid var(--line);background:transparent;color:var(--fg);font-size:9px;font-weight:800;text-transform:uppercase}.mobile-bar .primary{background:var(--accent);color:var(--accentText)}}
@media(max-width:600px){.signature{padding-left:20px;padding-right:20px}.signature-head h2{font-size:44px}.control-board,.shutdown-grid{grid-template-columns:1fr 1fr}.drawer-options{grid-template-columns:1fr}.scope-map{grid-template-columns:1fr}.performance-row{grid-template-columns:85px 1fr 36px}.studio-rail-track{animation-duration:18s}.cursor-label{display:none}}

/* V5.1 content visibility safety net */
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