:root{color-scheme:dark;--bg: #090b0e;--panel: #12161b;--panel-raised: #181d23;--surface: #1e242b;--surface-hover: #252c35;--stage: #202a34;--line: #303944;--line-strong: #46515e;--text: #f1f4f7;--muted: #98a3ae;--quiet: #697681;--accent: #72c6a5;--accent-strong: #9be5c9;--accent-ink: #07150f;--warm: #f0b778;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--radius-control: 7px;--radius-panel: 14px;--text-label: 11px;--text-small: 13px;--text-body: 15px;--text-title: clamp(22px, 2.2vw, 34px);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html{min-height:100%;background:radial-gradient(circle at 78% -10%,#21352f 0,transparent 28rem),var(--bg)}body{min-height:100dvh;margin:0;padding:env(safe-area-inset-top) max(var(--space-5),env(safe-area-inset-right)) max(var(--space-5),env(safe-area-inset-bottom)) max(var(--space-5),env(safe-area-inset-left));word-break:keep-all;overflow-wrap:anywhere}button,a,label{-webkit-tap-highlight-color:transparent}button{font:inherit}:focus-visible{outline:2px solid var(--accent-strong);outline-offset:3px}p,h1,h2,dl,dd{margin:0}.page-header,.workspace{width:min(1540px,100%);margin-inline:auto}.page-header{min-height:96px;padding-block:var(--space-5);display:flex;justify-content:space-between;align-items:center;gap:var(--space-5)}.title-block{min-width:0}.eyebrow,.stage-kicker{color:var(--accent);font-size:var(--text-label);font-weight:700;letter-spacing:.13em}h1{margin-top:var(--space-1);font-size:var(--text-title);font-weight:620;letter-spacing:-.035em}.lede{margin-top:var(--space-1);color:var(--muted);font-size:var(--text-small)}.viewer-tabs{display:flex;flex:0 0 auto;padding:3px;border:1px solid var(--line);border-radius:9px;background:color-mix(in srgb,var(--panel) 92%,transparent)}.viewer-tabs a{display:grid;place-items:center;min-height:38px;padding-inline:var(--space-4);border-radius:6px;color:var(--muted);text-decoration:none;font-size:var(--text-small);transition:color .14s ease,background-color .14s ease}.viewer-tabs a:hover{color:var(--text)}.viewer-tabs a[aria-current=page]{color:var(--accent-ink);background:var(--accent);font-weight:700}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 344px;gap:var(--space-4);align-items:start}.preview,.controls{border:1px solid var(--line);border-radius:var(--radius-panel);background:color-mix(in srgb,var(--panel) 96%,transparent);box-shadow:0 24px 60px #00000047,inset 0 1px #ffffff08}.preview{min-width:0;overflow:hidden}.stage-label,.stage-footer{display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);padding:var(--space-3) var(--space-4)}.stage-label{min-height:66px}.stage-label h2{margin-top:3px;font-size:17px;font-weight:620}.inspection-status{color:var(--muted);font-size:var(--text-small);text-align:end}#viewport{position:relative;height:min(72dvh,820px);min-height:600px;overflow:hidden;border-block:1px solid var(--line);background:radial-gradient(circle at 58% 38%,rgb(87 111 124 / 30%),transparent 36%),linear-gradient(145deg,#1d252e,#101419 68%)}#viewport:after{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;background:linear-gradient(90deg,rgb(255 255 255 / 2%) 1px,transparent 1px),linear-gradient(rgb(255 255 255 / 2%) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(to bottom,transparent,black 36%,transparent);mask-image:linear-gradient(to bottom,transparent,black 36%,transparent);content:""}#scene{position:relative;z-index:1;display:block;width:100%;height:100%;touch-action:none}.render-status{position:absolute;inset:42% var(--space-6) auto;z-index:2;color:var(--muted);text-align:center;font-size:var(--text-small)}.render-status[hidden]{display:none}.canvas-key{position:absolute;right:var(--space-4);bottom:var(--space-4);z-index:2;display:flex;align-items:center;gap:var(--space-2);padding:7px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:#0a0d10c7;font-size:var(--text-label);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.canvas-key span{width:7px;height:7px;border-radius:50%;background:var(--warm);box-shadow:0 0 0 3px #f0b7782e}.stage-footer{min-height:62px;color:var(--muted);font-size:var(--text-small)}.view-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:var(--space-1)}.quiet-button{min-height:38px;padding-inline:var(--space-3);border:1px solid var(--line);border-radius:var(--radius-control);color:var(--text);background:var(--panel-raised);cursor:pointer;font-size:var(--text-label);transition:border-color .14s ease,background-color .14s ease}.quiet-button:hover{border-color:var(--line-strong);background:var(--surface-hover)}.controls{position:sticky;top:var(--space-4);padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-5)}.control-section{min-width:0;padding:0;margin:0;border:0}legend,.spec-heading h2,.notice h2{padding:0;color:var(--muted);font-size:var(--text-label);font-weight:700;letter-spacing:.09em;text-transform:uppercase}.material-options{display:grid;gap:var(--space-2)}.material-options legend{margin-bottom:var(--space-1)}.material-card{width:100%;min-height:68px;padding:var(--space-3);display:grid;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:var(--space-2);border:1px solid var(--line);border-radius:10px;color:var(--text);background:var(--panel-raised);text-align:start;cursor:pointer;transition:border-color .14s ease,background-color .14s ease,transform .14s ease}.material-card:hover{border-color:var(--line-strong);background:var(--surface)}.material-card:active{transform:scale(.985)}.material-card[aria-pressed=true]{border-color:var(--accent);background:linear-gradient(90deg,rgb(114 198 165 / 12%),transparent 62%),var(--surface);box-shadow:inset 3px 0 var(--accent)}.material-index{color:var(--quiet);font-size:var(--text-label);font-variant-numeric:tabular-nums}.material-card strong,.material-card small{display:block}.material-card strong{font-size:var(--text-body);font-weight:620}.material-card small{margin-top:3px;color:var(--muted);font-size:var(--text-label)}.spec-card{padding:var(--space-4);border:1px solid var(--line);border-radius:10px;background:linear-gradient(145deg,rgb(240 183 120 / 8%),transparent 55%),var(--panel-raised)}.spec-heading{display:flex;justify-content:space-between;align-items:center}.spec-heading span{padding:3px 7px;border:1px solid rgb(240 183 120 / 30%);border-radius:999px;color:var(--warm);font-size:10px}.spec-card dl{margin-block:var(--space-4);display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.spec-card dl>div+div{padding-inline-start:var(--space-4);border-inline-start:1px solid var(--line)}.spec-card dt{color:var(--muted);font-size:var(--text-label)}.spec-card dd{margin-top:var(--space-1);font-size:19px;font-weight:650;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.spec-card p,.notice p{color:var(--muted);font-size:var(--text-label);line-height:1.6}.inspection-options{display:grid;gap:var(--space-1)}.inspection-options legend{margin-bottom:var(--space-2)}.toggle-row{min-height:52px;padding:var(--space-2);display:grid;grid-template-columns:22px minmax(0,1fr);align-items:center;gap:var(--space-2);border-radius:var(--radius-control);cursor:pointer}.toggle-row:hover{background:var(--panel-raised)}.toggle-row input{width:18px;height:18px;margin:0;accent-color:var(--accent)}.toggle-row strong,.toggle-row small{display:block}.toggle-row strong{font-size:var(--text-small)}.toggle-row small{margin-top:2px;color:var(--muted);font-size:var(--text-label)}.notice{padding-top:var(--space-4);border-top:1px solid var(--line)}.notice h2{margin-bottom:var(--space-2)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms}}@media(max-width:980px){.workspace{grid-template-columns:minmax(0,1fr)}.controls{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.material-options,.notice{grid-column:1 / -1}.material-options{grid-template-columns:repeat(3,minmax(0,1fr))}.material-options legend{grid-column:1 / -1}#viewport{height:58dvh;min-height:460px}}@media(max-width:680px){body{padding-inline:max(var(--space-3),env(safe-area-inset-left)) max(var(--space-3),env(safe-area-inset-right))}.page-header{align-items:flex-start;flex-direction:column}.viewer-tabs{width:100%}.viewer-tabs a{flex:1;padding-inline:var(--space-2);font-size:var(--text-label)}.stage-label,.stage-footer{align-items:flex-start;flex-direction:column}.inspection-status{text-align:start}#viewport{height:52dvh;min-height:340px}.stage-footer{min-height:auto}.view-actions{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.quiet-button{padding-inline:var(--space-2)}.controls,.material-options{grid-template-columns:minmax(0,1fr)}.material-options legend,.notice{grid-column:auto}}