:root{color-scheme:light;--ink: #18211d;--muted: #66756d;--line: #dce4dd;--line-strong: #c8d2ca;--panel: rgba(255, 255, 252, .94);--surface: #f5f7f1;--surface-warm: #fbf7ec;--accent: #176b5d;--accent-strong: #0f4f45;--accent-soft: #e3f1ec;--warn: #a33a24;--shadow: 0 24px 70px rgba(32, 42, 35, .1)}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Aptos,Avenir Next,Helvetica Neue,ui-sans-serif,system-ui,sans-serif;color:var(--ink);background:radial-gradient(circle at 16% 8%,rgba(23,107,93,.13),transparent 30vw),radial-gradient(circle at 86% 14%,rgba(183,135,62,.11),transparent 28vw),linear-gradient(135deg,#ffffffc7,#f2f7f0b3),var(--surface)}.shell{min-height:100vh;display:grid;place-items:center;padding:clamp(20px,3vw,42px)}.workspace{width:min(1480px,100%);display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,360px);gap:22px;align-items:start}.panel,.result-panel{background:var(--panel);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.panel{padding:clamp(20px,2.4vw,32px)}.result-panel{position:sticky;top:28px;padding:26px;display:flex;flex-direction:column;min-height:300px;border-color:#176b5d2e}.title-row{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:20px}.eyebrow{margin:0 0 9px;color:var(--muted);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.1em}h1{margin:0;max-width:12ch;font-size:clamp(34px,4.8vw,64px);line-height:.94;letter-spacing:-.055em}.unit-switch{flex:0 0 auto;display:inline-grid;grid-template-columns:repeat(2,minmax(42px,1fr));gap:3px;padding:3px;border-radius:999px;background:#176b5d1a;border:0;cursor:pointer;font-family:inherit}.unit-option{display:inline-grid;place-items:center;min-height:32px;padding:4px 11px;border-radius:999px;background:transparent;color:var(--muted);font-size:13px;font-weight:800;pointer-events:none;transition:color .16s ease,background .16s ease,box-shadow .16s ease}.unit-switch:hover .unit-option{color:var(--accent-strong)}.unit-option[aria-pressed=true]{background:var(--panel);color:var(--accent-strong);box-shadow:none}.drop-zone{min-height:86px;border:1px dashed #9daf9f;border-radius:16px;display:grid;grid-template-columns:auto minmax(0,1fr);place-items:center start;align-content:center;gap:6px 12px;padding:14px 16px;cursor:pointer;background:#ffffff8c;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease,transform .16s ease}.drop-zone[data-active=true]{background:var(--accent-soft);border-color:var(--accent);box-shadow:0 12px 32px #176b5d1f;transform:translateY(-1px)}.drop-zone input{position:absolute;inline-size:1px;block-size:1px;opacity:0;pointer-events:none}.upload-icon{grid-row:span 2;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,var(--accent),#2f8b67);box-shadow:0 8px 18px #176b5d2e}.upload-icon svg{width:18px;height:18px}.drop-title{align-self:end;font-size:15px;font-weight:800;letter-spacing:-.01em}.drop-subtitle{align-self:start}.drop-subtitle,.status,.meta{color:var(--muted);font-size:13px}.upload-meta-row{display:grid;grid-template-columns:1fr;margin-top:14px;padding-bottom:12px}.viewer-workbench{margin-top:20px;display:grid;grid-template-columns:minmax(620px,1fr) minmax(240px,300px);gap:16px;align-items:stretch}.viewer-workbench[hidden]{display:none}.model-viewer{aspect-ratio:1 / 1;min-height:clamp(560px,52vw,760px);border:1px solid var(--line-strong);border-radius:18px;overflow:hidden;background:linear-gradient(145deg,#ffffffc7,#e7efe8cc),#eef3ef;box-shadow:inset 0 0 0 1px #ffffffc7,0 18px 48px #1d2b2217}.model-viewer canvas{display:block;width:100%;height:100%}.model-viewer>div{display:grid;min-height:clamp(560px,52vw,760px);place-items:center;color:var(--muted);font-size:13px}.part-panel{min-height:clamp(560px,52vw,760px);border:1px solid var(--line);border-radius:18px;background:#fbfdfae6;display:flex;flex-direction:column;overflow:hidden}.part-panel-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px 14px 11px;border-bottom:1px solid var(--line)}.part-panel-header .eyebrow{margin:0}.text-button{border:1px solid var(--line);border-radius:999px;background:var(--panel);color:var(--accent-strong);cursor:pointer;font:inherit;font-size:12px;font-weight:800;min-height:28px;padding:4px 11px;transition:border-color .16s ease,background .16s ease}.text-button:hover{border-color:#176b5d59;background:var(--accent-soft)}.part-list{flex:1;min-height:0;overflow:auto;padding:9px 0}.part-loading{display:inline-block;padding:10px 12px;color:var(--muted);font-size:13px}.part-row{min-height:32px;display:grid;grid-template-columns:18px minmax(0,1fr);align-items:center;gap:8px;padding:5px 12px;color:var(--ink);cursor:pointer;font-size:13px;line-height:1.25;border-left:3px solid transparent;transition:background .14s ease,border-color .14s ease,color .14s ease}.part-row:hover{background:#176b5d0e}.part-row[data-selected=true]{border-left-color:#e08436;background:#e084361f;color:#54321f}.part-row input{margin:0;accent-color:var(--accent);cursor:pointer}.part-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.privacy-note{margin-top:4px;padding:13px 14px;border:1px solid rgba(214,221,214,.82);border-radius:14px;background:#ffffff85}.privacy-copy{margin:0;color:var(--muted);font-size:12px;line-height:1.55;max-width:52ch}.status{min-height:28px;display:inline-flex;width:fit-content;align-items:center;gap:8px;line-height:1.5;padding:4px 10px;border:1px solid rgba(214,221,214,.74);border-radius:999px;background:#ffffff8f}.status:before{content:"";width:7px;height:7px;border-radius:50%;background:#98a79e}.status[data-tone=success]{color:var(--accent);font-weight:700}.status[data-tone=success]:before{background:var(--accent)}.status[data-tone=error]{color:var(--warn);font-weight:700}.status[data-tone=error]:before{background:var(--warn)}.result{display:block;overflow-wrap:anywhere;font-family:SFMono-Regular,Cascadia Mono,Consolas,monospace;font-size:clamp(28px,4.5vw,48px);font-weight:800;line-height:1.08;letter-spacing:-.055em;margin:18px 0 22px;padding:18px;border:1px solid rgba(23,107,93,.14);border-radius:18px;background:linear-gradient(145deg,#e3f1ecb8,#fffc),var(--accent-soft)}.result-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.result-title{margin:0;font-size:18px;line-height:1.2;font-weight:800;letter-spacing:-.02em}.result-unit{flex:0 0 auto;display:inline-grid;place-items:center;min-width:44px;min-height:28px;padding:4px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:12px;font-weight:800;border:1px solid rgba(23,107,93,.14)}.meta{min-height:42px;margin-top:4px;line-height:1.5}.detected-material{margin-top:8px;font-size:14px;font-weight:700;color:var(--accent-strong)}.material-beta-notice{margin-top:4px;font-size:11px;color:var(--text-muted, #888);font-style:italic}@media(max-width:780px){.shell{padding:16px;place-items:start stretch}.workspace{grid-template-columns:1fr}.result-panel{position:static;min-height:210px}.viewer-workbench{grid-template-columns:1fr}.model-viewer{min-height:0;border-radius:16px}.model-viewer>div{min-height:min(92vw,560px)}.part-panel{min-height:220px;max-height:320px;border-radius:16px}h1{max-width:10ch}.drop-zone{min-height:78px}}@media(max-width:1100px){.workspace{grid-template-columns:1fr}.result-panel{position:static}.viewer-workbench{grid-template-columns:1fr}}