@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');
:root{--ink:#1e293b;--muted:#758196;--line:#e6eaf0;--paper:#f5f7fa;--blue:#4263eb;--blue-soft:#edf1ff;--green:#15a47a;--orange:#f29b38}
*{box-sizing:border-box}body{margin:0;background:#f7f8fb;color:var(--ink);font:14px 'DM Sans',sans-serif;height:100vh;overflow:hidden}button,input{font:inherit;color:inherit}button{cursor:pointer}.topbar{height:64px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 22px;gap:22px}.brand{font:700 18px 'Space Grotesk';display:flex;align-items:center;gap:10px;white-space:nowrap}.logo{width:30px;height:30px;border-radius:9px;background:var(--blue);color:white;display:grid;place-items:center;font-size:18px}.divider{height:26px;width:1px;background:var(--line)}.project-name{font-weight:600}.saved{color:var(--muted);font-size:12px;margin-left:8px}.grow{flex:1}.btn{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 12px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:7px}.btn.danger{border-color:#ff4d4f;background:#fff;color:#ff4d4f}.btn.danger:hover{background:#ff4d4f;color:#fff}.btn:hover{background:#f8f9fc}.btn.primary{background:var(--blue);color:white;border-color:var(--blue)}.btn.primary:hover{background:#3555d8}.btn.icon{width:34px;height:34px;padding:0;justify-content:center}.layout{height:calc(100vh - 64px);display:grid;grid-template-columns:260px 1fr 280px}.sidebar{background:#fff;border-right:1px solid var(--line);overflow:auto}.right{border-right:0;border-left:1px solid var(--line)}.side-head{padding:20px 18px 13px;font:700 12px 'Space Grotesk';letter-spacing:.08em;text-transform:uppercase;color:#68758a;display:flex;justify-content:space-between;align-items:center}.search{margin:0 14px 14px;position:relative}.search input{width:100%;border:1px solid var(--line);background:#fafbfc;border-radius:8px;padding:9px 10px 9px 32px;outline:none}.search:before{content:'⌕';position:absolute;left:11px;top:6px;font-size:19px;color:#8994a6}.category{font-size:11px;font-weight:700;color:#9aa3b1;text-transform:uppercase;letter-spacing:.07em;padding:9px 18px 6px}.item{margin:0 10px 5px;padding:9px 8px;border-radius:9px;display:flex;gap:10px;align-items:center;cursor:grab;border:1px solid transparent}.item:hover{background:#f8f9fc;border-color:#edf0f5}.item:active{cursor:grabbing}.chip{width:39px;height:39px;border-radius:8px;display:grid;place-items:center;font-size:18px;flex:none}.item-title{font-weight:600;font-size:12px}.item-sub{color:var(--muted);font-size:11px;margin-top:3px}.item-add{margin-left:auto;color:#9aa3b1;font-size:18px}.new-part{margin:12px 14px;width:calc(100% - 28px);justify-content:center;color:var(--blue);border-color:#dce3ff}.canvas-area{min-width:0;display:flex;flex-direction:column}.toolbar{height:54px;background:white;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 16px;gap:7px}.tool-sep{width:1px;height:25px;background:var(--line);margin:0 4px}.tool.active{background:var(--blue-soft);color:var(--blue);border-color:#dbe3ff}.stage{flex:1;overflow:auto;display:grid;place-items:center;padding:40px;background-color:#f2f4f8;background-image:radial-gradient(#d4dae4 0.8px,transparent .8px);background-size:18px 18px}.board-wrap{position:relative;filter:drop-shadow(0 7px 15px #25334a18)}svg#board{background:#fff;border:1px solid #c8d0dc;touch-action:none;user-select:none}.board-label{position:absolute;top:-28px;left:0;color:#6b7789;font-size:11px;font-weight:600}.right .side-head{padding-bottom:14px}.section{padding:0 17px 17px;border-bottom:1px solid #eff1f4;margin-bottom:16px}.field-label{font-size:11px;color:var(--muted);font-weight:600;margin:10px 0 6px}.field-row{display:flex;gap:9px}.field{position:relative;flex:1}.field input{width:100%;border:1px solid var(--line);border-radius:7px;padding:8px 27px 8px 9px;outline:none;font-size:13px}.field input:focus{border-color:#9daefb}.unit{position:absolute;right:9px;top:8px;color:#9aa3b1;font-size:11px}.select{width:100%;padding:8px;border:1px solid var(--line);border-radius:7px;background:white}.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:7px 0;font-size:12px}.toggle{width:32px;height:18px;border-radius:12px;background:#d8dde6;padding:2px;cursor:pointer}.toggle i{display:block;width:14px;height:14px;border-radius:50%;background:white;transition:.15s}.toggle.on{background:var(--blue)}.toggle.on i{transform:translateX(14px)}.empty{text-align:center;color:#96a0ae;font-size:12px;line-height:1.5;padding:17px 5px}.props-title{font-weight:700;font-size:13px}.mini-actions{display:flex;gap:7px;margin-top:12px}.mini-actions .btn{flex:1;justify-content:center;font-size:12px;padding:7px 5px}.statusbar{height:31px;background:white;border-top:1px solid var(--line);display:flex;align-items:center;padding:0 14px;color:#758196;font-size:11px;gap:17px}.status-dot{width:7px;height:7px;border-radius:50%;background:#1ab586;display:inline-block;margin-right:5px}.statusbar .grow{flex:1}.part{cursor:move}.part.selected .outline{stroke:#4263eb;stroke-width:2.5}.part text{pointer-events:none}.context-hint{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);border:1px solid #e5e9ef;border-radius:7px;background:#ffffffdd;padding:7px 11px;color:#697589;font-size:11px;box-shadow:0 2px 8px #2233440d;white-space:nowrap}.kbd{background:#f0f2f6;border-radius:4px;padding:2px 5px;font-size:10px}.modal-back{position:fixed;inset:0;background:#10182766;display:none;align-items:center;justify-content:center;z-index:5}.modal{width:380px;background:white;border-radius:14px;padding:22px;box-shadow:0 20px 70px #17203333}.modal h3{margin:0 0 15px;font:700 18px 'Space Grotesk'}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.toast{position:fixed;bottom:46px;left:50%;transform:translateX(-50%);background:#202b3c;color:white;border-radius:8px;padding:9px 14px;font-size:12px;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1}@media(max-width:1000px){.layout{grid-template-columns:220px 1fr 230px}.stage{padding:32px 20px}}@media(max-width:760px){body{overflow:auto;height:auto}.layout{height:auto;min-height:calc(100vh - 64px);grid-template-columns:1fr}.sidebar{display:none}.right{display:none}.canvas-area{height:calc(100vh - 95px)}.topbar{padding:0 12px;gap:10px}.project-name,.saved{display:none}}
.item.selected{background:var(--blue-soft);border-color:#dbe3ff}#stage{display:block;position:relative;overflow:hidden;cursor:grab}.board-wrap{width:max-content;margin:54px auto 40px}#stage.panning{cursor:grabbing;user-select:none}.panel-color-swatch{width:25px;height:25px;border:1px solid #aeb7c4;border-radius:6px;padding:0}.panel-color-swatch[aria-pressed="true"]{outline:2px solid var(--blue);outline-offset:2px}.item-del{margin-right:6px;color:#c00;font-size:14px;cursor:pointer;opacity:.6}.item-del:hover{opacity:1}