:root{--panel: #ffffff;--ink: #0f172a;--muted: #64748b;--line: #e2e8f0;--accent: #2563eb;--warn-bg: #fef3c7;--warn-ink: #92400e}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:#f1f5f9}.app{max-width:1320px;margin:0 auto;padding:0 16px 48px}.topbar{padding:22px 0 6px}.brand{display:flex;align-items:center;gap:14px}.brand-mark{font-size:32px;color:var(--accent);background:#dbeafe;border-radius:12px;width:54px;height:54px;display:grid;place-items:center}.brand h1{margin:0;font-size:21px}.brand p{margin:2px 0 0;color:var(--muted);font-size:14px}.layout{display:grid;grid-template-columns:340px 1fr;grid-template-areas:"controls canvas" "controls results";gap:16px;align-items:start;margin-top:12px}.controls{grid-area:controls}.canvas{grid-area:canvas}.results{grid-area:results}@media (max-width: 980px){.layout{grid-template-columns:1fr;grid-template-areas:"controls" "canvas" "results"}}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:0 1px 2px #0f172a0a}.card h2{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:16px 0 10px}.card h2:first-child{margin-top:0}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}label{display:flex;flex-direction:column;font-size:13px;font-weight:600;gap:6px;color:#334155}input,select{font:inherit;font-weight:500;padding:9px 10px;border:1px solid var(--line);border-radius:9px;background:#f8fafc;color:var(--ink)}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;background:#fff}label.check{flex-direction:row;align-items:flex-start;gap:8px;font-weight:500;margin-top:10px}.hint{font-size:13px;color:var(--muted);background:#f8fafc;border-radius:8px;padding:10px 12px;margin:0}.toolbar{display:flex;gap:8px;margin-bottom:6px;flex-wrap:wrap}.toolbar button,button.link{font:inherit;font-weight:600;font-size:13px;border:1px solid var(--line);background:#f8fafc;color:#334155;border-radius:9px;padding:8px 12px;cursor:pointer}.toolbar button:hover{background:#eef2f7}.toolbar button:disabled{opacity:.45;cursor:not-allowed}.toolbar button.danger{color:#b91c1c}button.link{border:none;background:none;color:var(--accent);padding:12px 0 0}.canvas-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width: 1240px){.canvas-grid{grid-template-columns:1fr}}.plan-svg,.model3d{width:100%;height:420px;background:#f8fafc;border:1px solid var(--line);border-radius:10px;touch-action:none;display:block}.plan-svg{cursor:crosshair}.plan-label{font-size:22px;font-weight:700;fill:#1e293b;pointer-events:none}.legend{list-style:none;display:flex;flex-wrap:wrap;gap:14px;padding:14px 0 0;margin:0;font-size:13px;color:#334155}.legend li{display:flex;align-items:center;gap:7px}.sw{width:16px;height:8px;border-radius:3px;display:inline-block}.warns{background:var(--warn-bg);color:var(--warn-ink);border-radius:10px;padding:8px 12px;margin-bottom:14px;font-size:13px}.warns p{margin:4px 0}.materials{width:100%;border-collapse:collapse;font-size:14px}.materials th,.materials td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}.materials th{font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}.materials td.big{font-size:20px;font-weight:700;color:var(--accent)}.materials tfoot td{font-weight:700;border-bottom:none}.kpis{display:flex;gap:12px;margin:16px 0;flex-wrap:wrap}.kpi{background:#f8fafc;border:1px solid var(--line);border-radius:10px;padding:10px 16px;display:flex;flex-direction:column}.kpi-n{font-size:22px;font-weight:800}.kpi-l{font-size:12px;color:var(--muted)}.cutplan{margin-top:18px}.cutplan-title{font-size:13px;font-weight:700;color:#334155;margin-bottom:8px}.cutbar{display:flex;align-items:center;gap:8px;margin-bottom:6px}.cutbar-idx{font-size:12px;color:var(--muted);width:26px;flex:none}.cutbar-track{flex:1;display:flex;height:26px;border-radius:6px;overflow:hidden;border:1px solid var(--line)}.cutseg{display:grid;place-items:center;color:#fff;font-size:11px;font-weight:700;border-right:1px solid rgba(255,255,255,.5);overflow:hidden;white-space:nowrap}.cutseg.waste{background:repeating-linear-gradient(45deg,#e2e8f0,#e2e8f0 5px,#cbd5e1 5px,#cbd5e1 10px);color:#475569}.cutseg-label{padding:0 2px}.notes{margin-top:22px;border-top:1px solid var(--line);padding-top:14px}.notes h3{font-size:13px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:0 0 8px}.notes ul{margin:0;padding-left:18px;font-size:13px;color:#334155}.notes li{margin-bottom:5px}.disclaimer{font-size:12px;color:var(--muted);background:#f8fafc;border-radius:8px;padding:10px 12px;margin-top:12px}