:root{--bg:#f4f1ea;--panel:#fffdf8;--ink:#1f1d1a;--muted:#6b665d;--line:#d9d2c5;--accent:#0f5c4a;--accent-soft:#eef6f2;--accent-ink:#fff;--warn-bg:#fff4d6;--warn-line:#e0b84c;--err-bg:#fbe9e7;--err-line:#c9453a;--mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--sans:system-ui, -apple-system, "Segoe UI", sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);font:16px/1.55 var(--sans);margin:0}a{color:var(--accent)}h1,h2,h3{letter-spacing:-.01em;line-height:1.2}h1{margin:0 0 12px;font-size:clamp(28px,4vw,40px)}h2{margin:0 0 10px;font-size:22px}h3{margin:0 0 6px;font-size:17px}p{margin:0 0 12px}code{font-family:var(--mono);font-size:.92em}.skip{background:var(--panel);border-radius:6px;padding:8px 12px;position:absolute;top:8px;left:-999px}.skip:focus{z-index:10;left:8px}.shell{max-width:880px;margin:0 auto;padding:0 20px 60px}.site-header{border-bottom:1px solid var(--line);background:var(--panel)}.site-header .row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;max-width:880px;margin:0 auto;padding:14px 20px;display:flex}.brand{color:var(--ink);letter-spacing:-.01em;font-size:18px;font-weight:700;text-decoration:none}.brand span{color:var(--accent)}.site-nav{flex-wrap:wrap;align-items:center;gap:10px 18px;display:flex}.site-nav a{color:var(--muted);font-size:15px;text-decoration:none}.site-nav a:hover{color:var(--ink)}.lang{border:1px solid var(--line);background:var(--panel);border-radius:8px;display:inline-flex;overflow:hidden}.lang a{color:var(--muted);letter-spacing:.04em;border-left:1px solid var(--line);padding:6px 12px;font-size:13px;font-weight:600;text-decoration:none}.lang a:first-child{border-left:0}.lang a:hover{color:var(--ink)}.lang a[aria-current=true]{background:var(--accent);color:var(--accent-ink)}.site-footer{border-top:1px solid var(--line);color:var(--muted);margin-top:40px;font-size:14px}.site-footer .row{flex-wrap:wrap;justify-content:space-between;gap:16px;max-width:880px;margin:0 auto;padding:20px;display:flex}.site-footer a{color:var(--muted)}.site-footer nav{flex-wrap:wrap;gap:14px;display:flex}a.donate{border:1px solid var(--accent);background:var(--accent-soft);color:var(--accent);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:7px 14px;font-size:14px;font-weight:600;line-height:1;text-decoration:none;transition:background .12s,color .12s;display:inline-flex}a.donate:hover{background:var(--accent);color:var(--accent-ink)}a.donate svg{flex:none}.hero{padding:48px 0 24px}.hero p{color:var(--muted);max-width:640px;font-size:18px}.lede{color:var(--muted);max-width:700px;font-size:17px}.grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:12px 0 32px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;flex-direction:column;gap:8px;padding:20px;display:flex}.card p{color:var(--muted);flex:1}.card .ext{font-family:var(--mono);color:var(--muted);font-size:12px}.button{background:var(--accent);color:var(--accent-ink);border-radius:8px;align-self:flex-start;padding:10px 16px;font-weight:600;text-decoration:none;display:inline-block}.button.secondary{color:var(--accent);border:1px solid var(--accent);background:0 0}.crumbs{color:var(--muted);flex-wrap:wrap;gap:8px;margin:20px 0 8px;padding:0;font-size:14px;list-style:none;display:flex}.crumbs li+li:before{content:"/";color:var(--line);margin-right:8px}.crumbs a{color:var(--muted);text-decoration:none}.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;margin-bottom:18px;padding:20px}.drop{cursor:pointer;border:2px dashed var(--line);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:44px 20px;transition:border-color .12s,background .12s;display:flex}.drop:hover,.drop:focus-visible,.drop.over{border-color:var(--accent);background:var(--accent-soft);outline:none}.controls{margin-top:14px}.check{color:var(--muted);align-items:flex-start;gap:10px;font-size:14px;display:flex}.check input{margin-top:4px}.busy{opacity:.6;pointer-events:none}.steps{grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 14px;padding:0;list-style:none;display:grid}.step{color:var(--muted);align-items:center;gap:8px;font-size:14px;display:flex}.step .dot{border:2px solid var(--line);border-radius:50%;flex:none;width:12px;height:12px}.step.active{color:var(--ink);font-weight:600}.step.active .dot{border-color:var(--accent);animation:.9s ease-in-out infinite pulse}.step.done{color:var(--ink)}.step.done .dot{background:var(--accent);border-color:var(--accent)}.step.failed{color:var(--err-line)}.step.failed .dot{background:var(--err-line);border-color:var(--err-line);animation:none}.step-detail{font-family:var(--mono);color:var(--muted);font-size:12px;font-weight:400}.bar{background:var(--line);border-radius:999px;height:8px;overflow:hidden}.bar-fill{background:var(--accent);border-radius:999px;width:0;height:100%;transition:width .16s linear}.bar-fill.indeterminate{width:35%;animation:1.1s ease-in-out infinite slide}.bar-fill.failed{background:var(--err-line);width:100%;animation:none}.status{color:var(--muted);margin:10px 0 0;font-size:14px}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.35)}}@keyframes slide{0%{margin-left:-35%}to{margin-left:100%}}.result-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.facts{grid-template-columns:max-content 1fr;gap:6px 18px;margin:18px 0 0;display:grid}.facts dt{color:var(--muted)}.facts dd{font-family:var(--mono);margin:0;font-size:14px}.warning{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:8px;margin-top:16px;padding:12px 14px}.warning h3{margin:0 0 6px;font-size:15px}.warning ul{margin:0;padding-left:18px}.warning li{font-size:14px}.error{background:var(--err-bg);border-color:var(--err-line)}.share{border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.share h3{margin:0 0 6px;font-size:15px}.share-warning{color:var(--muted);max-width:60ch;font-size:14px}.share-error{color:var(--err-line);margin:10px 0 0;font-size:14px}.share-link{margin-top:12px}.share-link label{color:var(--muted);margin-bottom:4px;font-size:13px;display:block}.share-row{flex-wrap:wrap;gap:8px;display:flex}.share-row input{border:1px solid var(--line);background:var(--bg);min-width:0;color:var(--ink);font-family:var(--mono);border-radius:8px;flex:260px;padding:9px 12px;font-size:14px}.issues{border-collapse:collapse;width:100%;margin-top:12px;font-size:14px}.issues th,.issues td{text-align:left;border-top:1px solid var(--line);vertical-align:top;padding:6px 8px}.issues th{color:var(--muted);border-top:0;font-weight:600}.support{gap:10px;margin:8px 0 24px;padding:0;list-style:none;display:grid}.support li{background:var(--panel);border:1px solid var(--line);border-radius:8px;grid-template-columns:130px 1fr;gap:12px;padding:12px 14px;font-size:15px;display:grid}.support .level{font-weight:600}.support .verified{color:var(--accent)}.support .unverified{color:#9a6b00}.support .unsupported{color:var(--err-line)}.links{flex-wrap:wrap;gap:12px;margin:8px 0 24px;display:flex}.prose{max-width:720px}.prose section{margin:28px 0}.faq details{background:var(--panel);border:1px solid var(--line);border-radius:8px;margin-bottom:10px;padding:12px 16px}.faq summary{cursor:pointer;font-weight:600}.faq details p{color:var(--muted);margin:10px 0 0}@media (max-width:560px){.site-header .row{row-gap:10px}.site-nav{gap:14px}.steps,.support li{grid-template-columns:1fr}}.drawing-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.seg{border:1px solid var(--line);border-radius:8px;display:inline-flex;overflow:hidden}.seg button{appearance:none;color:var(--muted);font:inherit;cursor:pointer;border:0;border-left:1px solid var(--line);background:0 0;padding:6px 12px;font-size:13px;font-weight:600}.seg button:first-child{border-left:0}.seg button[aria-selected=true]{background:var(--accent);color:var(--accent-ink)}.seg button:disabled{opacity:.45;cursor:not-allowed}.toolpath{border:1px solid var(--line);background:#fbfaf6;border-radius:8px;width:100%;max-height:520px;display:block}.toolpath .panel-outline{stroke:var(--line);fill:#fff}.toolpath .rapid{stroke:#9a948a;stroke-dasharray:4 3}.toolpath .drill{stroke:var(--drill,#b45309);fill:color-mix(in srgb, var(--drill,#b45309) 18%, transparent)}.toolpath .cut{stroke:var(--accent)}.toolpath path:hover{stroke:#c9453a}.drawing-meta{color:var(--muted);flex-wrap:wrap;gap:16px;margin-top:10px;font-size:13px;display:flex}.drawing-skipped{color:#9a6b00}.legend{align-items:center;gap:6px;display:inline-flex}.swatch{border-top:2px solid;width:18px;height:0;margin-left:10px;display:inline-block}.swatch.rapid{border-color:#9a948a;border-top-style:dashed}.swatch.cut{border-color:var(--accent)}.drawing-empty,.drawing-error{color:var(--muted);margin:8px 0 0}.drawing-error{color:var(--err-line)}.badge{letter-spacing:.02em;white-space:nowrap;border:1px solid;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:700;display:inline-block}.badge.verified{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}.badge.unverified{color:#7a5500;border-color:var(--warn-line);background:var(--warn-bg)}.badge.unsupported{color:var(--err-line);border-color:var(--err-line);background:var(--err-bg)}.badge.parse{color:var(--muted);border-color:var(--line);background:var(--panel)}.badge.notice{background:color-mix(in srgb, currentColor 8%, transparent);color:var(--muted)}.code-block{background:var(--panel);border:1px solid var(--line);border-radius:8px;margin:0 0 8px;padding:12px 14px;font-size:14px;overflow-x:auto}.code-block code{white-space:pre}.code-chip{background:var(--panel);border:1px solid var(--line);border-radius:6px;padding:1px 6px}.table-scroll{margin:0 0 12px;overflow-x:auto}.ref-table{border-collapse:collapse;width:100%;font-size:15px}.ref-table th,.ref-table td{text-align:left;border-top:1px solid var(--line);vertical-align:top;padding:8px 10px}.ref-table th{color:var(--muted);border-top:0;font-weight:600}.ref-table code{font-size:13px}.ref-list{gap:8px;margin:0 0 12px;padding:0;list-style:none;display:grid}.ref-list li{background:var(--panel);border:1px solid var(--line);border-radius:8px;flex-wrap:wrap;align-items:center;gap:10px;padding:10px 12px;font-size:15px;display:flex}.support-line{color:var(--muted);flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;display:flex}.meta-line{color:var(--muted);font-size:13px}.message{border-left:3px solid var(--accent);background:var(--accent-soft);font-family:var(--mono);margin:0 0 8px;padding:12px 14px;font-size:14px}.spec{margin:16px 0 24px}.reason-link{color:inherit;text-decoration:underline;-webkit-text-decoration-color:var(--line);text-decoration-color:var(--line);text-underline-offset:2px}.reason-link:hover{text-decoration-color:currentColor}.faq summary h2,.faq summary h3{margin:0;font-size:16px;display:inline}.icon{vertical-align:-.18em;flex:none}.button,.target,a.donate{align-items:center;gap:8px;display:inline-flex}.panel h2,.warning h3,.share h3{align-items:center;gap:8px;display:flex}.icon.ok{color:var(--accent)}.warning h3 .icon{color:#9a6b00}.panel.error h2 .icon{color:var(--err-line)}.drop{gap:8px;padding:48px 20px}.drop-icon{color:var(--muted);transition:color .12s,transform .12s}.drop:hover .drop-icon,.drop:focus-visible .drop-icon,.drop.over .drop-icon{color:var(--accent);transform:translateY(-2px)}.drop-title{font-size:19px;font-weight:600}.drop-btn{pointer-events:none;align-self:center;margin-top:4px}.drop-sub{color:var(--muted);font-size:13px}.check-hint{color:var(--muted);margin:4px 0 0 26px;font-size:13px}.chosen{border-bottom:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:10px;padding-bottom:14px;display:flex}.chosen .icon{color:var(--muted)}.chosen-name{overflow-wrap:anywhere;flex:1;min-width:0;font-weight:600}.button.ghost{color:var(--muted);border:1px solid var(--line);background:0 0;padding:7px 12px;font-size:14px;font-weight:500}.button.ghost:hover{color:var(--ink);border-color:var(--muted)}.choose{padding-top:16px}.choose-title{margin:0 0 12px;font-size:17px}.choose-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:12px;display:grid}.target{appearance:none;text-align:left;font:inherit;color:inherit;cursor:pointer;background:var(--panel);border:2px solid var(--line);border-radius:12px;gap:14px;padding:16px;transition:border-color .12s,background .12s,transform .12s}.target:hover,.target:focus-visible{border-color:var(--accent);background:var(--accent-soft);outline:none;transform:translateY(-1px)}.target-ext{font-family:var(--mono);color:var(--accent-ink);background:var(--accent);white-space:nowrap;border-radius:8px;padding:8px 10px;font-size:15px;font-weight:700}.target-body{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.target-name{font-weight:600}.target-for{color:var(--muted);font-size:13px}.target-go{color:var(--accent)}.unreadable{align-items:flex-start;gap:12px;padding-top:16px;display:flex}.unreadable .icon{color:var(--err-line)}.unreadable p{color:var(--muted);margin:0}.unreadable .choose-title{margin-bottom:4px}.step .dot{border:2px solid var(--line);width:26px;height:26px;color:var(--muted);background:var(--panel);border-radius:50%;justify-content:center;align-items:center;display:inline-flex}.step.active .dot{border-color:var(--accent);color:var(--accent);animation:none}.step.done .dot{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.step.failed .dot{background:var(--err-line);border-color:var(--err-line);color:#fff}.badges{flex-wrap:wrap;gap:8px;margin:0 0 32px;padding:0;list-style:none;display:flex}.badges li{background:var(--accent-soft);color:var(--accent);border:1px solid color-mix(in srgb, var(--accent) 22%, transparent);border-radius:999px;align-items:center;gap:7px;padding:7px 13px;font-size:13.5px;font-weight:600;display:inline-flex}.card.reason>.icon{color:var(--accent)}@media (max-width:560px){.drop{padding:40px 16px}.chosen-name{flex:auto}.chosen .button.ghost{flex-basis:100%;justify-content:center}}.support .level{align-items:center;gap:7px;display:inline-flex}.support .unverified .icon,.support .unsupported .icon{color:inherit}