:root{color-scheme:dark;--font: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-head: "Comfortaa", "Manrope", system-ui, sans-serif;--font-dots: "Doto", "Comfortaa", monospace;--bg: #151d29;--grid: rgba(255, 255, 255, .045);--surface: #1b2535;--surface-2: #222d40;--surface-3: #2a3750;--line: rgba(255, 255, 255, .12);--line-strong: rgba(255, 255, 255, .24);--text: #eef2f7;--text-2: rgba(238, 242, 247, .78);--muted: rgba(238, 242, 247, .52);--accent: #d8f34a;--accent-hover: #e4f87a;--accent-ink: #283444;--accent-soft: rgba(216, 243, 74, .16);--accent-line: rgba(216, 243, 74, .5);--ink: #283444;--pill: #e9edf3;--pill-btn: #d6dce5;--menu: rgba(30, 40, 56, .92);--menu-ink: #eef2f7;--scene-1: #1d2f4c;--scene-2: #27385a;--scene-3: #4a4252;--ok: #8fe3a6;--info: #8fc4ff;--warn: #ffc98a;--violet: #d9b8ff;--r-sm: 10px;--r-md: 14px;--r-lg: 22px;--shadow-1: 0 1px 2px rgba(0, 0, 0, .4);--shadow-2: 0 14px 40px rgba(0, 0, 0, .55);--bar-h: 58px;--nav-h: 62px;--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px)}:root[data-theme=light]{--bg: #5f7792;--grid: rgba(255, 255, 255, .07);--surface: #6a82a0;--surface-2: #758fac;--surface-3: #819bb8;--line: rgba(255, 255, 255, .34);--line-strong: rgba(255, 255, 255, .58);--text: #ffffff;--text-2: rgba(255, 255, 255, .86);--muted: rgba(255, 255, 255, .62);--pill: #ffffff;--pill-btn: #eceef1;--menu: rgba(255, 255, 255, .84);--menu-ink: #283444;--scene-1: #6aa7e2;--scene-2: #a7c0d6;--scene-3: #e8dec3;--ok: #1c7a4c;--info: #1d5f9e;--warn: #8a5a00;--violet: #6b3fa0;--shadow-1: 0 1px 2px rgba(20, 35, 60, .25);--shadow-2: 0 14px 40px rgba(20, 35, 60, .35)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font:14px/1.45 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select{font:inherit;color:inherit}button{cursor:pointer}h1,h2,h3,p,dl,dd{margin:0}canvas{display:block;touch-action:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.center-message{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted);padding:24px;text-align:center}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation:none!important;transition:none!important}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 14px;border-radius:10px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--text);font-weight:600;font-size:13.5px;line-height:1;white-space:nowrap;transition:background .15s,border-color .15s,color .15s,transform .06s}.btn:hover{background:var(--surface-3)}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost{background:transparent;border-color:transparent;color:var(--text-2)}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.vmode{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:var(--glass, rgba(255, 255, 255, .07));border:1px solid var(--glass-line, var(--line))}.vmode .vm{padding:6px 16px;border-radius:999px;font:700 13px/1 Manrope,system-ui,sans-serif;color:var(--text-2);text-decoration:none;cursor:pointer}.vmode a.vm:hover{color:var(--text)}.vmode .vm.on{background:var(--accent);color:var(--accent-ink)}.vmode .vm.is-pending,.vmode 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9px;border-radius:8px;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:12.5px;font-variant-numeric:tabular-nums;white-space:nowrap}.code b{font-weight:700;opacity:.75}.code-block{background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent-line)}.flag{margin-left:8px;padding:1px 8px;border-radius:999px;background:#ffd23f24;color:var(--warn);font-size:12px}.search{display:flex;flex:1;min-width:0;align-items:center;gap:8px;height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--muted)}.search:focus-within{border-color:var(--accent);color:var(--accent)}.search input{flex:1;min-width:0;border:0;outline:0;background:none;color:var(--text)}.search input::placeholder{color:var(--muted)}.select{height:34px;padding:0 28px 0 10px;border-radius:10px;border:1px solid var(--line-strong);background:var(--surface-2);color:var(--text);font-size:13px}.switches{display:flex;flex-wrap:wrap;gap:4px 16px;margin-left:auto}.switch{display:inline-flex;align-items:center;gap:8px;padding:6px 2px;border:0;background:none;color:var(--text-2);font-size:13px}.switch i{position:relative;width:34px;height:20px;border-radius:999px;border:1px solid var(--line-strong);background:var(--surface-3);transition:background .15s,border-color .15s}.switch i:after{content:"";position:absolute;top:2px;left:2px;width:14px;height:14px;border-radius:50%;background:var(--muted);transition:transform .15s,background .15s}.switch[aria-checked=true]{color:var(--text)}.switch[aria-checked=true] i{background:var(--accent-soft);border-color:var(--accent)}.switch[aria-checked=true] i:after{transform:translate(14px);background:var(--accent)}.switch:disabled{opacity:.4;cursor:not-allowed}.section-title{display:flex;align-items:center;gap:7px;margin:0 0 6px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.app{position:relative;display:flex;flex-direction:column;height:100dvh;min-height:0;overflow:hidden}.appbar{display:flex;align-items:center;gap:12px;height:calc(var(--bar-h) + var(--safe-t));padding:var(--safe-t) 12px 0 16px;background:var(--surface);border-bottom:1px solid var(--line);flex:none}.brand{display:flex;align-items:center;gap:12px;flex:1;min-width:0}.brand-home{display:flex;align-items:center;gap:12px;flex:none;color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}.brand-home:active .brand-mark{transform:scale(.94)}.brand-mark{display:block;width:36px;height:36px;flex:none;border-radius:10px}.brand-word{display:none;flex:none;padding-right:14px;border-right:1px solid var(--line-strong);color:var(--text-2);font-size:15px;font-weight:500;letter-spacing:.02em;line-height:36px;white-space:nowrap}.brand-word b{color:var(--text);font-weight:750}@media (min-width: 1100px){.brand-word{display:block}}.brand-text{min-width:0}.brand-text h1{font-size:15px;font-weight:650;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.brand-text p{font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.appbar-actions{display:flex;align-items:center;gap:4px}.lang{padding:0 10px}.viewport{position:relative;flex:1;min-height:0;background:linear-gradient(180deg,var(--scene-1) 0%,var(--scene-2) 55%,var(--scene-3) 100%)}.hint{display:flex;align-items:center;gap:8px;max-width:calc(100% - 96px);padding:7px 14px;border-radius:999px;border:1px solid var(--accent-line);background:#14171beb;color:var(--accent);font-size:12.5px;font-weight:600;pointer-events:none;z-index:5}.toast{position:absolute;left:50%;bottom:24px;transform:translate(-50%);max-width:min(92vw,460px);padding:11px 16px;border-radius:12px;border:1px solid var(--line-strong);background:var(--surface-3);box-shadow:var(--shadow-2);font-size:13.5px;z-index:80}.bottomnav{display:none}.tools{position:absolute;top:12px;right:12px;z-index:6;display:flex;flex-direction:column;gap:2px;padding:4px;border-radius:14px;border:1px solid var(--line);background:#14171bdb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-1)}.tool{position:relative;display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:10px;background:transparent;color:var(--text-2);transition:background .15s,color .15s}.tool:hover{background:var(--surface-3);color:var(--text)}.tool.is-on{background:var(--accent-soft);color:var(--accent)}@media (hover: hover){.tool:after{content:attr(data-tip);position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%);padding:5px 10px;border-radius:8px;background:var(--surface-3);border:1px solid var(--line-strong);color:var(--text);font-size:12.5px;white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .12s}.tool:hover:after{opacity:1}}.tools-sep{height:1px;margin:3px 6px;background:var(--line)}.tools-views{position:relative}.pop{position:absolute;right:calc(100% + 8px);top:0;min-width:150px;padding:4px;border-radius:12px;border:1px solid var(--line-strong);background:var(--surface-2);box-shadow:var(--shadow-2)}.pop-item{display:block;width:100%;padding:9px 12px;border:0;border-radius:8px;background:none;text-align:left;font-size:13.5px}.pop-item:hover{background:var(--surface-3)}.dim-label,.measure-label{padding:1px 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16px;flex:none}.sheet-title{min-width:0}.sheet-title h2{font-size:15.5px;font-weight:650;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sheet-title p{font-size:12.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sheet-body{overflow-y:auto;overscroll-behavior:contain;padding:0 16px 16px;border-top:1px solid var(--line)}.facts{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;padding-top:12px;font-size:13.5px}.facts dt{color:var(--muted)}.facts dd{min-width:0;overflow-wrap:anywhere}.actions{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 2px}.scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:center;justify-content:center;padding:20px;background:#050709ad;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.scrim-side{justify-content:flex-end;padding:0}.drawer{display:flex;flex-direction:column;width:min(450px,100%);height:100%;background:var(--surface);border-left:1px solid var(--line-strong);box-shadow:var(--shadow-2)}.drawer-head,.drawer-header{display:flex;align-items:center;gap:8px;padding:10px 10px 10px 14px;flex:none}.drawer-header{border-bottom:1px solid var(--line)}.drawer-tabs{padding:0 14px 10px;flex:none}.drawer-list{flex:1;overflow-y:auto;overscroll-behavior:contain;border-top:1px solid var(--line)}.drawer-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px 14px;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;color:var(--text)}.drawer-item:hover{background:var(--surface-2)}.drawer-item-active{background:var(--accent-soft);box-shadow:inset 3px 0 0 var(--accent)}.drawer-item-code{flex:none;min-width:58px;padding:3px 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var(--accent)}.tree-caret{display:grid;place-items:center;width:28px;height:28px;border:0;border-radius:8px;background:none;color:var(--muted)}.tree-caret:hover{background:var(--surface-3)}.tree-name{flex:1;min-width:0;padding:4px 0;border:0;background:none;text-align:left;font-size:13.5px}.tree-name em{margin-left:8px;color:var(--accent);font-style:normal;font-size:11.5px}.tree-count{padding:1px 9px;border-radius:999px;background:var(--bg);color:var(--muted);font-size:11.5px;font-variant-numeric:tabular-nums}.tree-part{display:flex;align-items:baseline;gap:8px;width:100%;padding:7px 12px;border:0;border-bottom:1px solid var(--line);background:none;color:var(--text-2);text-align:left;font-size:12.5px}.tree-part:hover,.tree-part-active{background:var(--accent-soft)}.tree-part-name{flex:1;min-width:0}.tree-hw{display:flex;flex-wrap:wrap;gap:4px;padding:6px 12px}.hw-list{margin-top:16px}.hw-item{padding:8px 0;border-bottom:1px solid var(--line);font-size:13.5px}.hw-item:last-child{border-bottom:0}.hw-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px}.hw-count{color:var(--accent);font-weight:700}.hw-to{color:var(--muted)}.hw-to em{color:var(--accent);font-style:normal;font-weight:600}.hw-holes{display:flex;flex-wrap:wrap;gap:4px 6px;margin-top:5px}.hw-hole{padding:2px 8px;border-radius:6px;border-left:3px solid var(--accent);background:var(--surface-3);color:var(--text-2);font-size:12px}.hw-hole-B{border-left-color:var(--info)}.hw-hole-edge{border-left-color:var(--violet)}.hw-flat{display:flex;flex-wrap:wrap;gap:5px}.hw-chip{padding:3px 9px;border-radius:7px;background:var(--surface-3);color:var(--text-2);font-size:12px}.hw-chip b{color:var(--accent)}.spec-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:flex;align-items:stretch;justify-content:center;padding:20px;background:#050709ad;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.spec{--spec-bg: var(--surface);--spec-panel: var(--surface-2);--spec-ink: var(--text);--spec-dim: var(--muted);--spec-line: #4a515c;--spec-rule: var(--line);--spec-accent: var(--accent);display:flex;flex-direction:column;width:min(1200px,100%);max-height:100%;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);background:var(--spec-bg);color:var(--spec-ink);box-shadow:var(--shadow-2);font-size:13px}.spec-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 16px;padding:12px 12px 12px 18px;border-bottom:1px solid var(--spec-rule)}.spec-title{display:flex;flex-direction:column;gap:2px;min-width:0}.spec-title b{font-size:17px;font-weight:650}.spec-title span{color:var(--spec-dim);font-size:12.5px}.spec-tools{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.spec-search{flex:0 1 190px;height:34px}.spec-body{min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:0 18px 18px}.spec-summary,.spec-legend{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;padding-top:12px;color:var(--spec-dim)}.spec-summary span{padding:4px 10px;border-radius:8px;background:var(--surface-2)}.spec-summary b{color:var(--spec-ink);font-variant-numeric:tabular-nums}.spec-legend{padding-bottom:12px;font-size:12px}.spec-lg{display:inline-block;width:16px;height:4px;border-radius:2px;vertical-align:middle}.spec-lg-edge{background:var(--accent)}.spec-scroll{overflow-x:auto;border:1px solid var(--spec-rule);border-radius:var(--r-md)}.spec-table{width:100%;min-width:880px;border-collapse:collapse}.spec-table th{position:sticky;top:0;padding:9px 8px;border-bottom:1px solid var(--spec-rule);background:var(--spec-panel);color:var(--spec-dim);font-size:12px;font-weight:600;text-align:center;white-space:nowrap}.spec-table td{padding:6px 8px;border-bottom:1px solid var(--spec-rule);text-align:center;vertical-align:middle}.spec-left{text-align:left!important}.spec-row{cursor:pointer}.spec-row:hover td{background:var(--accent-soft)}.spec-num{color:var(--spec-dim)}.spec-des{color:var(--spec-accent);font-weight:700;white-space:nowrap;font-variant-numeric:tabular-nums}.spec-mat{max-width:250px;color:var(--spec-dim)}.spec-block{color:var(--spec-dim);font-size:11.5px}.spec-dim{font-weight:600;font-variant-numeric:tabular-nums}.spec-qty{font-weight:700}.spec-none{color:#4a515c}.spec-glyph{display:block;margin:0 auto}.spec-link{padding:3px 7px;border:0;border-radius:7px;background:none;font-weight:700}.spec-link:hover{background:var(--accent-soft);color:var(--accent)}.spec-check{width:17px;height:17px;accent-color:var(--accent)}.spec-group td{padding:8px 12px;background:var(--surface-3);font-weight:650;text-align:left}.spec-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:20px}.spec-cols h3{margin-bottom:8px;font-size:12px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--spec-dim)}.spec-mini{width:100%;border-collapse:collapse}.spec-mini td{padding:5px 6px;border-bottom:1px solid var(--spec-rule);vertical-align:top}.spec-mini td:not(:first-child){text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}.spec-cards{display:none}.drilling-panel{display:flex;flex-direction:column;width:min(940px,100%);max-height:100%;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line-strong);background:var(--surface);box-shadow:var(--shadow-2)}.drilling-title{flex:1;min-width:0;font-size:15px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.drilling-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;padding:10px 14px;border-bottom:1px solid 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