/* Initial page display scale requested for the visual library. Browser zoom remains user-controlled. */
html{zoom:80%}
:root{color-scheme:light;--bg:#f3f0e8;--panel:#fffdf9;--ink:#203044;--muted:#657284;--line:#ded6c8;--accent:#2c6e9e;--soft:#e9f0f5}
html[data-theme=dark]{color-scheme:dark;--bg:#151b25;--panel:#1d2633;--ink:#e5ebf3;--muted:#a0afc1;--line:#394657;--accent:#91c7ec;--soft:#26394b}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:94px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Segoe UI',Arial,sans-serif}a{color:var(--accent);text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}[hidden]{display:none!important}.skip{position:absolute;left:15px;top:-80px;z-index:20;background:var(--panel);padding:10px}.skip:focus{top:10px}
.wrap{width:min(1440px,calc(100% - 48px));margin:auto}.library-header{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.library-header img{width:180px;height:auto}.top-actions{display:flex;align-items:center;gap:12px}.back-link{font-size:14px;text-decoration:none}.hero{padding:48px 0 30px;max-width:950px}.eyebrow{font-size:12px;letter-spacing:.13em;text-transform:uppercase;font-weight:600;color:var(--accent);margin:0 0 10px}h1{font-size:clamp(30px,4vw,48px);letter-spacing:-.04em;line-height:1.13;margin:0 0 20px;font-weight:650}.hero>p:last-child{color:var(--muted);max-width:760px;font-size:18px;margin:0}.model-note{padding:16px 20px;border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;background:var(--panel);font-size:14px;color:var(--muted);margin-bottom:28px}.model-note strong{color:var(--ink)}
.section-nav{position:sticky;top:0;z-index:3;background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section-nav .wrap{display:flex;overflow:auto;gap:24px;padding:15px 0;white-space:nowrap}.section-nav a{font-size:14px;text-decoration:none;color:var(--muted);padding:5px 0}.section-nav a:hover,.section-nav a[aria-current]{color:var(--accent)}.filters{display:flex;flex-wrap:wrap;gap:18px;align-items:end;padding:26px 0 10px}.field{display:flex;flex-direction:column;gap:5px}.field label{font-size:12px;color:var(--muted)}.field.search{flex:1;min-width:230px}.field input,.field select{padding:10px 12px;background:var(--panel);border:1px solid var(--line);border-radius:8px;color:var(--ink);height:44px}.result-count{font-size:13px;color:var(--muted);margin:0 0 9px}.library-section{padding:32px 0 24px;scroll-margin-top:85px}.section-heading{display:flex;align-items:baseline;gap:14px}h2{font-size:28px;letter-spacing:-.025em;line-height:1.2;margin:0}.section-count{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:2px 9px}.section-description{color:var(--muted);max-width:900px;margin:12px 0 22px;font-size:15px}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.drawing-card{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--panel)}.drawing-link{display:block;background:#f7f5f1;position:relative;line-height:0;border-bottom:1px solid var(--line)}.drawing-link img{width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}.drawing-link span{position:absolute;right:12px;bottom:12px;border:1px solid #d6d5cf;padding:7px 10px;border-radius:6px;background:#fffdf9ec;color:#34566f;font-size:12px;line-height:1.3;opacity:0;transition:opacity .15s}.drawing-link:hover span,.drawing-link:focus-visible span{opacity:1}.card-copy{padding:20px 24px 22px}.meta{display:flex;gap:10px;flex-wrap:wrap;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.meta .material{color:var(--accent)}h3{font-size:21px;font-weight:600;letter-spacing:-.02em;line-height:1.25;margin:9px 0 10px}.card-copy p{font-size:14px;color:var(--muted);margin:0 0 14px}.card-actions{display:flex;gap:18px;align-items:center;font-size:13px}.detail-button{border:0;padding:0;background:none;color:var(--accent);text-decoration:underline;text-underline-offset:4px}.empty{padding:50px 0;text-align:center;color:var(--muted)}.empty button{color:var(--accent);background:var(--panel);border:1px solid var(--line);padding:8px 15px;border-radius:8px}.library-footer{padding:30px 0 36px;margin-top:30px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}.library-footer p{margin:8px 0}.library-footer a{margin-right:16px}
.drawing-viewer{width:min(1500px,96vw);height:94dvh;max-width:none;max-height:none;padding:0;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--ink)}.drawing-viewer::backdrop{background:#0c1726c9}.viewer-header{padding:14px 20px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}.viewer-header h2{flex:1;font-size:19px;line-height:1.3}.viewer-header button{background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:6px;padding:5px 12px}.viewer-controls{display:flex;align-items:center;flex-wrap:wrap;gap:14px;padding:10px 20px;font-size:13px}.viewer-controls input{width:110px;accent-color:var(--accent)}.viewer-controls label{display:flex;align-items:center;gap:8px}.viewer-controls button{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:5px;padding:3px 10px}.viewer-image-area{height:calc(100% - 125px);overflow:auto;background:#f7f5f1;text-align:center}.viewer-image-area img{display:block;width:100%;height:auto;margin:0 auto;max-width:none}.viewer-image-area.zoomed img{margin:0}.viewer-caption{margin-left:auto;color:var(--muted)}
@media(max-width:760px){.wrap{width:calc(100% - 28px)}.library-header{padding:14px 0}.library-header img{width:145px}.back-link{font-size:12px}.top-actions{gap:8px}.hero{padding:32px 0 22px}.card-grid{grid-template-columns:1fr}.section-nav .wrap{gap:20px}.card-copy{padding:18px}.filters{gap:12px}.field.search{min-width:100%;}.field:not(.search){flex:1}.field select{width:100%}.viewer-caption{display:none}.drawing-viewer{height:94dvh;width:98vw}.viewer-header{padding:12px;gap:8px}.viewer-header h2{font-size:16px}.viewer-controls{padding:8px 12px;gap:9px}.drawing-link span{opacity:1}h2{font-size:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.hero h1{white-space:nowrap;font-size:clamp(16px,3.6vw,48px)}
.illustration-note{font-size:14px;color:var(--muted);margin:0 0 26px}