:root{--bg: #0d0e10;--glass: rgba(22, 24, 28, .74);--glass-strong: rgba(18, 20, 24, .92);--line: rgba(255, 255, 255, .09);--line-strong: rgba(255, 255, 255, .18);--ink: #eceef2;--ink-2: #b4b8c2;--ink-3: #7c818d;--accent: #f0a63a;--accent-ink: #1a1206;--select: #6f9bff;--red: #ff4a3d;--r-sm: 8px;--r-md: 12px;--r-lg: 18px;--pill: 999px;--shadow: 0 10px 40px rgba(0, 0, 0, .45);--font: "Inter", system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;--safe-b: env(safe-area-inset-bottom, 0px)}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;overflow:hidden;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}[hidden]{display:none!important}.icon{width:18px;height:18px;flex:none}#app,.viewport{position:fixed;inset:0}.viewport canvas{display:block;width:100%;height:100%;touch-action:none;outline:none}.panel,.toolbar,.dock,.popover,.engine-hud,.showcase-bar{background:var(--glass);backdrop-filter:blur(18px) saturate(1.2);-webkit-backdrop-filter:blur(18px) saturate(1.2);border:1px solid var(--line);box-shadow:var(--shadow)}.brand{position:fixed;top:18px;left:22px;display:flex;align-items:center;gap:12px;pointer-events:none;transition:opacity .4s}.brand-mark{font-size:34px;font-weight:200;letter-spacing:.34em;line-height:1;padding-left:.04em}.brand-text{display:flex;flex-direction:column;gap:3px;border-left:1px solid var(--line-strong);padding-left:12px}.brand-text strong{font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase}.brand-text span{font-size:11px;color:var(--ink-3)}.toolbar{position:fixed;top:16px;right:16px;display:flex;gap:2px;padding:5px;border-radius:var(--r-lg)}.tool{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:56px;padding:7px 8px 6px;border:0;border-radius:var(--r-md);background:transparent;color:var(--ink-2);font-size:11px;transition:background .15s,color .15s}.tool:hover{background:#ffffff0f;color:var(--ink)}.tool[aria-pressed=true],.tool[aria-expanded=true]{background:#ffffff1f;color:var(--ink)}.tool.accent[aria-pressed=true]{background:var(--accent);color:var(--accent-ink)}.only-narrow{display:none}.popover{position:fixed;top:84px;right:16px;width:236px;padding:14px;border-radius:var(--r-lg);z-index:5}.popover-title{font-size:12px;color:var(--ink-3);margin-bottom:10px}.swatches{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.swatch{aspect-ratio:1;border-radius:50%;border:2px solid transparent;background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.55),transparent 42%),var(--sw);box-shadow:inset 0 0 0 1px #ffffff2e}.swatch.active{border-color:var(--ink)}.popover-note{margin-top:10px;font-size:12px;color:var(--ink-2)}.panel{position:fixed;border-radius:var(--r-lg)}.parts{top:92px;left:16px;bottom:112px;width:248px;display:none;flex-direction:column;overflow:hidden}.parts.open{display:flex}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 8px 16px}.panel-head h2{margin:0;font-size:13px;font-weight:600;letter-spacing:.06em}.text-btn{border:0;background:none;color:var(--ink-3);font-size:12px;padding:4px}.text-btn:hover{color:var(--ink)}.parts-scroll{overflow-y:auto;padding:0 8px 12px;scrollbar-width:thin}.cat h3{margin:12px 8px 4px;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:.08em}.cat ul{list-style:none;margin:0;padding:0}.part-row{display:flex;align-items:center;border-radius:var(--r-sm)}.part-row:hover{background:#ffffff0d}.part-row.active{background:#6f9bff29}.part-row.active .part-name{color:#fff}.part-row.off .part-name{color:var(--ink-3);text-decoration:line-through;text-decoration-color:#ffffff40}.part-name{flex:1;text-align:left;border:0;background:none;padding:7px 8px;font-size:13px;color:var(--ink-2)}.eye{border:0;background:none;padding:6px 8px;color:var(--ink-3);display:grid;place-items:center}.eye:hover{color:var(--ink)}.eye .icon{width:16px;height:16px}.info{top:92px;right:16px;width:320px;max-height:calc(100% - 210px);overflow-y:auto;padding:18px 18px 16px;background:var(--glass-strong)}.close{position:absolute;top:10px;right:10px;border:0;background:#ffffff0f;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;color:var(--ink-2)}.close:hover{color:var(--ink);background:#ffffff1f}.info-cat{font-size:11px;color:var(--select);letter-spacing:.08em}.info h2{margin:6px 36px 2px 0;font-size:19px;font-weight:700;line-height:1.35}.info-en{font-size:12px;color:var(--ink-3);letter-spacing:.04em}.info p{margin:12px 0;line-height:1.8;color:var(--ink-2);font-size:13px}.specs{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0 0 4px;font-size:12.5px}.specs:empty{display:none}.specs dt{color:var(--ink-3)}.specs dd{margin:0;color:var(--ink);font-variant-numeric:tabular-nums}.info-actions{display:flex;gap:8px;margin-top:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line-strong);background:#ffffff0d;color:var(--ink);border-radius:var(--pill);padding:8px 14px;font-size:13px;white-space:nowrap;transition:background .15s,border-color .15s}.btn:hover{background:#ffffff1a}.btn[aria-pressed=true]{background:#6f9bff33;border-color:#6f9bff99}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}.btn.primary:hover{filter:brightness(1.08)}.btn.small{padding:6px 11px;font-size:12px}.btn .icon{width:16px;height:16px}.dock{position:fixed;left:50%;bottom:calc(18px + var(--safe-b));transform:translate(-50%);display:flex;align-items:center;gap:18px;padding:10px 12px 10px 10px;border-radius:var(--pill);max-width:calc(100% - 32px)}.explode{display:flex;align-items:center;gap:12px}#btn-explode{min-width:128px}.slider{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--ink-3)}.slider input{width:200px;accent-color:var(--accent)}.views{display:flex;gap:4px;padding-left:14px;border-left:1px solid var(--line)}.chip{white-space:nowrap;border:0;background:transparent;color:var(--ink-2);border-radius:var(--pill);padding:7px 11px;font-size:12px}.chip:hover{background:#ffffff14;color:var(--ink)}.engine-hud{position:fixed;right:16px;bottom:calc(96px + var(--safe-b));display:flex;align-items:center;gap:14px;padding:14px 16px 14px 14px;border-radius:var(--r-lg)}.tach{width:104px;height:104px;transform:rotate(135deg)}.tach circle{fill:none;stroke-width:7;stroke-dasharray:314.16}.tach-track{stroke:#ffffff1a;stroke-dashoffset:78.54}.tach-red{stroke:#ff4a3d8c;stroke-dasharray:23.56 314.16!important;stroke-dashoffset:-212.06}.tach-fill{stroke:var(--accent);stroke-linecap:round;stroke-dashoffset:314.16;transition:stroke .15s}.engine-hud.redline .tach-fill{stroke:var(--red)}.tach-read{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:104px;display:flex;flex-direction:column;align-items:center;pointer-events:none}.tach-read b{font-size:22px;font-weight:600;font-variant-numeric:tabular-nums}.tach-read span{font-size:10px;color:var(--ink-3);letter-spacing:.1em}.hud-actions{display:flex;flex-direction:column;gap:8px}.btn.rev{flex-direction:column;gap:1px;border-radius:var(--r-md);padding:9px 18px;font-weight:600;user-select:none;-webkit-user-select:none;touch-action:none}.btn.rev small{font-size:10px;font-weight:400;color:var(--ink-3)}.btn.rev.held{background:var(--red);border-color:var(--red)}.btn.rev.held small{color:#fffc}.hud-row{display:flex;gap:6px}.hud-note{margin:0;font-size:10px;color:var(--ink-3)}.labels{position:fixed;inset:0;pointer-events:none;opacity:0;transition:opacity .35s}.labels.visible{opacity:1}.labels.visible .label{pointer-events:auto}.label{position:absolute;left:0;top:0;margin:-12px 0 0 -6px;display:inline-flex;align-items:center;gap:6px;padding:4px 9px 4px 7px;border:1px solid var(--line-strong);border-radius:var(--pill);background:#0e0f12b8;color:var(--ink);font-size:11px;white-space:nowrap;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}.label:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}.label.active{border-color:var(--select)}.label.active:before{background:var(--select)}.tooltip{position:fixed;left:0;top:0;padding:5px 9px;border-radius:var(--r-sm);background:#0a0b0dd9;border:1px solid var(--line);font-size:12px;pointer-events:none;z-index:10}.showcase-bar{position:fixed;left:50%;bottom:calc(22px + var(--safe-b));transform:translate(-50%);display:flex;align-items:center;gap:14px;padding:8px 8px 8px 18px;border-radius:var(--pill);font-size:12px;color:var(--ink-2)}body.bare .brand,body.bare .toolbar,body.bare .labels,body.bare .parts,body.bare .dock,body.bare .info,body.showcase .parts,body.showcase .info,body.showcase .dock,body.showcase .engine-hud,body.showcase .popover{display:none!important}.sheet{width:min(520px,calc(100% - 32px));max-height:calc(100% - 48px);padding:24px 24px 20px;border:1px solid var(--line-strong);border-radius:var(--r-lg);background:var(--glass-strong);color:var(--ink);box-shadow:var(--shadow)}.sheet::backdrop{background:#0000008c;backdrop-filter:blur(4px)}.sheet h2{margin:0 0 16px;font-size:18px}.sheet h3{margin:20px 0 8px;font-size:13px;color:var(--ink-2)}.howto{margin:0;padding-left:18px;color:var(--ink-2);line-height:1.8;font-size:13px}.fine{margin:14px 0 0;font-size:11.5px;line-height:1.7;color:var(--ink-3)}.fine a{color:var(--ink-2)}.loading{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:var(--bg);color:var(--ink-3);font-size:12px;letter-spacing:.1em;z-index:20;transition:opacity .5s}.loading.done{opacity:0;pointer-events:none}.spinner{width:28px;height:28px;border:2px solid rgba(255,255,255,.12);border-top-color:var(--accent);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:1180px){.tool{min-width:44px}.slider input{width:140px}.slider-end{display:none}.parts{width:220px}.dock{gap:12px}.views{padding-left:10px}.chip{padding:7px 8px}}@media(max-width:760px){.brand{top:12px;left:14px;gap:9px}.brand-mark{font-size:24px}.brand-text span{display:none}.toolbar{top:54px;left:10px;right:10px;overflow-x:auto;scrollbar-width:none;gap:0;padding:4px;border-radius:var(--r-md)}.toolbar::-webkit-scrollbar{display:none}.tool{flex:1;min-width:38px;padding:6px 2px 5px;font-size:10px}.only-narrow{display:flex}.popover{top:122px;left:10px;right:10px;width:auto}.parts{top:auto;left:10px;right:10px;bottom:calc(132px + var(--safe-b));width:auto;max-height:52vh}.info{top:auto;left:10px;right:10px;bottom:calc(132px + var(--safe-b));width:auto;max-height:46vh;padding:16px}.dock{left:10px;right:10px;bottom:calc(10px + var(--safe-b));transform:none;max-width:none;flex-direction:column;align-items:stretch;gap:8px;border-radius:var(--r-lg);padding:10px}.explode{gap:10px}#btn-explode{min-width:0;flex:none}.slider{flex:1}.slider input{width:100%;min-width:0}.slider-end{display:none}.views{border-left:0;padding-left:0;justify-content:space-between}.chip{flex:1;padding:6px 4px}.engine-hud{left:10px;right:10px;bottom:calc(132px + var(--safe-b));padding:10px 12px}.tach{width:84px;height:84px}.tach-read{left:10px;width:84px}.tach-read b{font-size:18px}.hud-actions{flex:1}}