/* Building Studio. Layout from the Kasterpillar Image Studio, recoloured for Building Augmented:
   blueprint navy with construction-site accents (safety yellow, sky blue, safety orange). */
:root{color-scheme:dark;--bg:#0b1f3a;--panel:#102a4d;--field:#081830;--ink:#eef4fb;--muted:#a6b8d1;--accent:#facc15;--blue:#38bdf8;--blue-deep:#0284c7;--orange:#fb923c;--line:#ffffff20;--grid:#7dd3fc0d}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:linear-gradient(var(--grid) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/32px 32px,var(--bg);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
.skip{position:absolute;top:-80px;left:20px;background:var(--accent);color:#0b1f3a;padding:12px;z-index:10}
.skip:focus{top:12px}
.site-header,footer{max-width:1180px;padding:25px 32px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:24px}
.site-header{border-bottom:1px solid #ffffff15}
body::before{content:"";display:block;height:6px;background:repeating-linear-gradient(-45deg,var(--accent) 0 14px,#0b1f3a 14px 28px)}
.brand{font-family:"Courier Prime","Courier New",Courier,monospace;font-weight:700;font-size:21px;color:var(--accent)}
.brand span{color:var(--muted);font-weight:400;font-size:14px}
nav{display:flex;gap:18px;font-size:14px}
nav [aria-current]{color:var(--accent)}
footer{border-top:1px solid #ffffff15;color:var(--muted);font-size:12px;flex-wrap:wrap}
footer p{margin:0}
.eyebrow{margin:0 0 20px;color:var(--accent);text-transform:uppercase;font:700 12px/1.4 ui-monospace,monospace;letter-spacing:2px}
h1,h2,h3,p{overflow-wrap:break-word}
h1{letter-spacing:-.045em;font-weight:750;margin:0 0 28px}
.intro{color:var(--muted);max-width:640px;line-height:1.65;margin:0 0 28px}

button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:disabled{opacity:.45;cursor:default}
.image-shell{max-width:1180px;padding:0 32px 80px;margin:auto}
.image-hero{padding:68px 0 48px;display:flex;gap:30px;align-items:center;justify-content:space-between}
.image-hero h1{font-size:clamp(40px,5.2vw,66px);line-height:1.08}
.image-hero h1 span{color:var(--accent)}
.image-hero .intro{font-size:18px;max-width:620px;margin-bottom:0}
.edition{flex:0 0 155px;padding:24px 0 24px 24px;border-left:1px solid #ffffff25;color:var(--muted);font:10px/1.5 ui-monospace,monospace;letter-spacing:1px}
.edition span{display:block}
.edition strong{display:block;font:90px/1.15 system-ui;color:var(--blue);letter-spacing:-8px;margin:4px 0 16px}
.model-card{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #facc1538;border-left:3px solid var(--accent);border-radius:8px;background:#facc1506;padding:18px 22px;margin:0 0 28px}
.model-card .eyebrow{font-size:10px;letter-spacing:1.4px;margin:0 0 6px}
.model-name{font-size:20px;font-weight:700;line-height:1.4;margin:0}
.model-name span{font-size:13px;font-weight:400;color:var(--muted);margin-left:8px}
.model-description{font-size:12px;color:var(--muted);margin:5px 0 0}
.model-name b{font-weight:700}
.model-link{display:inline-block;font-size:12px;color:var(--accent);margin-top:6px}
.model-switch{display:flex;gap:8px;border:0;margin:0;padding:0;flex:0 0 auto}
.model-switch legend{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.model-switch label{position:relative;display:flex;flex-direction:column;gap:2px;min-width:132px;padding:10px 14px;border:1px solid #ffffff30;border-radius:8px;cursor:pointer;font-size:14px;font-weight:650;line-height:1.3}
.model-switch small{font:10px/1.4 ui-monospace,monospace;color:var(--muted);font-weight:400}
.model-switch input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;pointer-events:none}
.model-switch label:has(input:checked){border-color:var(--accent);background:#facc1514;color:var(--accent)}
.model-switch label:has(input:focus-visible){outline:2px solid var(--blue);outline-offset:3px}
.model-switch label:has(input:disabled){opacity:.5;cursor:default}
.studio-grid{display:grid;grid-template-columns:minmax(300px,.85fr) minmax(0,1.15fr);gap:28px;align-items:start}
.controls{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:26px}
.panel-heading,.output-heading{display:flex;justify-content:space-between;align-items:start;gap:12px}
.tag{border:1px solid #38bdf855;color:var(--blue);font:9px/1.5 ui-monospace,monospace;letter-spacing:.7px;padding:4px 7px;border-radius:3px}
.controls .eyebrow,.output .eyebrow{font-size:10px;letter-spacing:1.4px}
.controls label{display:block;font-size:13px;font-weight:650;margin:0 0 8px}
.controls label span{font-weight:400;color:var(--muted)}
input,select,textarea{width:100%;min-width:0;background:var(--field);color:var(--ink);border:1px solid #ffffff30;border-radius:6px;padding:11px 12px;font-size:14px}
textarea{resize:vertical;line-height:1.65}
textarea::placeholder,input::placeholder{color:#7f93b0}
textarea[readonly]{color:#cfdcec;background:#08183099;border-style:dashed}
.examples{display:flex;flex-wrap:wrap;gap:7px;margin:4px 0 22px}
.examples button{border:1px solid #facc1538;border-radius:30px;padding:6px 10px;font:10px/1.4 ui-monospace,monospace;color:var(--accent);background:transparent}
.examples button:hover:not(:disabled){background:#facc1516}
.examples #surprise{border-color:#fb923c66;color:var(--orange)}
.brief-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:18px}
.brief-grid label{font-size:12px;margin-bottom:6px}
.brief-grid select{padding:9px 10px;font-size:13px}
#notes{margin-bottom:18px}
.prompt-box{border-top:1px solid var(--line);padding-top:18px;margin-bottom:20px}
.prompt-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.controls label.check{display:flex;align-items:center;gap:7px;font-weight:400;font-size:12px;color:var(--muted);cursor:pointer}
.check input{width:auto;margin:0;accent-color:var(--accent)}
#prompt{min-height:120px;font-size:13px}
.setting-row{display:grid;grid-template-columns:1.2fr 1fr;gap:14px;margin-bottom:20px}
.seed-row{grid-template-columns:1fr auto;align-items:end;margin-bottom:8px}
.hint{font-size:11px;line-height:1.7;color:var(--muted);margin:10px 0}
.start-note{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin:22px 0}
.start-note strong{font-size:14px;color:var(--ink)}
.start-note p{margin:10px 0}
.primary,.secondary,.quiet{border-radius:6px;padding:12px 16px;font-size:13px;font-weight:650;border:1px solid #ffffff35;color:var(--ink);background:transparent;line-height:1.5}
.primary{width:100%;background:var(--accent);color:#0b1f3a;border-color:var(--accent);display:flex;justify-content:space-between}
.primary:hover:not(:disabled){background:#fde047}
.secondary:hover:not(:disabled),.quiet:hover:not(:disabled){background:#ffffff0a}
.quiet{font-size:11px;padding:12px 10px}
#stop{width:100%;margin-top:10px}
.device-warning{border:1px solid #fb923c55;border-left:3px solid var(--orange);border-radius:6px;background:#fb923c12;padding:12px 14px;margin:0 0 14px;font-size:12px;line-height:1.6}
.device-warning strong{color:var(--orange)}
#clear{font-size:11px}
.status-panel{margin-top:16px;border-left:2px solid var(--accent);padding-left:12px}
.status-panel p:first-child{margin:0;font-size:12px}
progress{width:100%;accent-color:var(--accent);height:7px}
.cache-options{margin-top:25px;border-top:1px solid var(--line);padding-top:18px;font-size:12px;color:var(--muted)}
summary{cursor:pointer;color:var(--ink)}
.output{padding:14px 0}
.output-heading{align-items:center;margin-bottom:22px}
.output h2{font-size:23px;line-height:1.25;letter-spacing:-.5px;margin:0}
.output-heading .eyebrow{margin:0 0 9px}
.local-badge{white-space:nowrap;color:var(--muted);font:9px/1.5 ui-monospace,monospace}
.local-badge span{color:var(--accent);font-size:8px;margin-right:5px}
.picture-frame{display:grid;place-items:center;aspect-ratio:1;background:radial-gradient(ellipse at 50% 40%,#1d4373 0,transparent 65%),#081830;border:1px solid #facc1533;border-radius:10px;overflow:hidden;position:relative}
.picture-frame[aria-busy=true]{border-color:var(--blue)}
#empty{text-align:center;padding:20px}
#empty h3{font-size:21px;letter-spacing:-.5px;margin:25px 0 7px}
#empty p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}
.empty-art{position:relative;width:190px;height:150px;margin:auto}
.empty-art .ground{position:absolute;left:0;right:0;bottom:12px;border-top:1px solid #facc154d}
.empty-art .block{position:absolute;bottom:12px;border:2px solid var(--accent);background:linear-gradient(160deg,#facc1533,#facc1505)}
.empty-art .b1{left:28px;width:58px;height:62px}
.empty-art .b2{left:78px;width:72px;height:104px;border-color:var(--blue);background:linear-gradient(160deg,#38bdf844,#38bdf808);background-image:repeating-linear-gradient(0deg,transparent 0 14px,#38bdf833 14px 16px)}
.empty-art .b3{left:142px;width:30px;height:40px;border-color:var(--orange);background:linear-gradient(160deg,#fb923c44,#fb923c08)}
.empty-art .sun{position:absolute;width:12px;height:12px;border-radius:50%;background:var(--accent);left:24px;top:18px;box-shadow:0 0 20px #facc1560}
canvas{display:block;width:100%;height:100%;object-fit:contain}
.result-info{font:11px/1.8 ui-monospace,monospace;color:var(--muted);overflow-wrap:anywhere;white-space:pre-line}
.export-bar{border-top:1px solid var(--line);padding-top:20px;margin-top:20px;display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap}
.ideas{margin-top:26px}
.ideas .eyebrow{margin-bottom:12px}
.idea-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(76px,1fr));gap:10px}
.idea-strip button{padding:0;border:1px solid #ffffff25;border-radius:6px;overflow:hidden;background:var(--field);aspect-ratio:1}
.idea-strip button[aria-pressed=true]{border:2px solid var(--accent)}
.idea-strip button:hover:not(:disabled){border-color:var(--accent)}
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;border-top:1px solid var(--line);margin-top:60px;padding-top:32px}
.how>div>span{color:var(--orange);font:12px ui-monospace,monospace}
.how h3{font-size:16px;margin:16px 0 8px}
.how p{font-size:13px;color:var(--muted);margin:0}
.prose{max-width:760px;font-size:17px;line-height:1.85;color:#d6e2f0}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
code{font-size:.86em;background:#ffffff0a;border:1px solid #ffffff15;border-radius:4px;padding:2px 5px;overflow-wrap:anywhere}
@media(max-width:850px){.studio-grid{grid-template-columns:1fr 1fr;gap:20px}.controls{padding:20px}.local-badge{display:none}.edition{display:none}.setting-row,.brief-grid{grid-template-columns:1fr}.seed-row{grid-template-columns:1fr auto}}
@media(max-width:650px){.site-header,footer{padding:22px;gap:14px}.brand span{display:none}.image-shell{padding:0 20px 50px}.image-hero{padding:40px 0 30px}.image-hero h1{font-size:42px}.image-hero .intro{font-size:16px}.studio-grid{grid-template-columns:1fr}.output{padding-top:15px}.setting-row,.brief-grid{grid-template-columns:1fr 1fr}.seed-row{grid-template-columns:1fr auto}.how{grid-template-columns:1fr;gap:25px;margin-top:35px}.local-badge{display:block}.model-card{align-items:start;flex-direction:column;gap:12px;padding:16px 18px}.model-switch{width:100%}.model-switch label{flex:1;min-width:0}.model-name span{display:block;margin:4px 0 0}footer p{flex-basis:100%;order:3}}
@media(max-width:400px){.brief-grid{grid-template-columns:1fr}}