:root{--bg: #f4f6f8;--surface: #ffffff;--ink: #16212d;--ink-soft: #5b6b7c;--line: #dde3ea;--accent: #2f6fb0;--accent-soft: #e8f0f8;--warn: #a8620a;--warn-soft: #fdf1e0;--danger: #a32f2f;--danger-soft: #fbeaea;--radius: 8px;--shadow: 0 1px 2px rgba(22, 33, 45, .06), 0 1px 8px rgba(22, 33, 45, .04);color-scheme:light}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-variant-numeric:tabular-nums}button,input,select{font:inherit;color:inherit}button{cursor:pointer;border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:6px 12px}button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}button:disabled{opacity:.5;cursor:not-allowed}input,select{border:1px solid var(--line);border-radius:6px;padding:5px 8px;background:var(--surface)}input:focus-visible,select:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.app{display:flex;flex-direction:column;min-height:100vh}.topbar{display:flex;align-items:center;gap:24px;padding:10px 20px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.brand{display:flex;align-items:baseline;gap:10px}.brand strong{font-size:16px}.brand span{color:var(--ink-soft);font-size:13px}.brand .back{padding:2px 9px;align-self:center}.topbar-kpis{display:flex;gap:28px;margin:0 auto 0 0}.topbar-kpis div{display:flex;flex-direction:column}.topbar-kpis dt{color:var(--ink-soft);font-size:11px;text-transform:uppercase;letter-spacing:.04em}.topbar-kpis dd{margin:0;font-size:17px;font-weight:600}.lang-toggle{display:flex;margin-left:auto}.lang-toggle button{border-radius:0;padding:4px 10px;font-size:12px}.lang-toggle button:first-child{border-radius:6px 0 0 6px}.lang-toggle button:last-child{border-radius:0 6px 6px 0;border-left:none}.lang-toggle .active{background:var(--accent);color:#fff;border-color:var(--accent)}.lang-toggle .active:hover{color:#fff}.centered{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px}.split{flex:1;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.2fr) minmax(300px,.9fr);gap:16px;padding:16px;align-items:start}.panel{min-width:0}.panel-right{position:sticky;top:68px}.panel-middle{position:sticky;top:68px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px 18px}.panel-title{margin:0 0 10px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}.dropzone{border:2px dashed var(--line);border-radius:var(--radius);background:var(--surface);padding:40px 32px;text-align:center;max-width:520px;width:100%;transition:border-color .15s,background .15s}.dropzone.over{border-color:var(--accent);background:var(--accent-soft)}.dropzone.busy{opacity:.7}.dropzone.compact{padding:12px 16px;max-width:none;display:flex;align-items:center;justify-content:center;gap:14px}.dropzone.compact p{margin:0}.dropzone-prompt{margin:0 0 4px;font-size:15px;font-weight:500}.dropzone-hint{margin:0 0 16px;color:var(--ink-soft);font-size:12px}.dropzone-busy{margin:0;color:var(--ink-soft)}.footer-upload{padding:0 16px 16px}.project-list{width:100%;max-width:520px}.project-list h2{margin:0 0 14px;font-size:18px}.new-project{display:flex;gap:8px;margin-bottom:18px}.new-project input{flex:1}.projects{list-style:none;margin:0;padding:0;display:grid;gap:8px}.projects button{width:100%;display:flex;justify-content:space-between;align-items:center;padding:12px 14px;box-shadow:var(--shadow)}.projects .open{color:var(--ink-soft);font-size:12px}.group{background:var(--surface);border:1px solid var(--line);border-left:3px solid transparent;border-radius:var(--radius);margin-bottom:12px;box-shadow:var(--shadow);scroll-margin-top:72px}.group.selected{border-left-color:var(--accent)}.group-head{display:flex;align-items:flex-start;gap:10px;padding:12px 14px 8px}.group-toggle{border:none;background:none;padding:0 2px;color:var(--ink-soft)}.group-title{flex:1;min-width:0}.group-title h3{margin:0;font-size:15px}.group-meta{margin:2px 0 0;color:var(--ink-soft);font-size:12px}.group-cost{font-size:15px;font-weight:600;white-space:nowrap}.group-controls{display:flex;flex-wrap:wrap;gap:14px;padding:0 14px 12px;border-bottom:1px solid var(--line)}.group-controls label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--ink-soft)}.group-controls input[type=number]{width:76px}.unit{color:var(--ink-soft);font-size:12px}.parts{list-style:none;margin:0;padding:0}.part+.part{border-top:1px solid var(--line)}.part-head{width:100%;display:flex;align-items:center;gap:12px;border:none;border-radius:0;background:none;padding:8px 14px;text-align:left}.part-head:hover{background:var(--accent-soft);color:inherit}.part-thumb{width:46px;height:46px;flex:none;display:grid;place-items:center;background:var(--bg);border-radius:6px;overflow:hidden}.part-thumb img{width:100%;height:100%;object-fit:contain}.part-thumb-empty{width:18px;height:18px;border:1px dashed var(--line);border-radius:3px}.part-main{flex:1;min-width:0;display:flex;flex-direction:column}.part-name{font-weight:500}.part-name .qty{margin-left:8px;background:var(--accent-soft);color:var(--accent);border-radius:10px;padding:1px 8px;font-size:12px;font-weight:600}.part-sub{color:var(--ink-soft);font-size:12px}.part-cost{font-variant-numeric:tabular-nums;white-space:nowrap}.part-detail{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:6px 18px;margin:0;padding:4px 14px 14px 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tr{cursor:pointer}.cost-table:not(.totals) tbody tr:hover{background:var(--accent-soft)}.cost-table tr.selected{background:var(--accent-soft);box-shadow:inset 3px 0 0 var(--accent)}.cost-table .pct{width:62px;margin-left:8px;padding:2px 6px;text-align:right}.cost-table .grand th,.cost-table .grand td{font-size:16px;font-weight:700;border-top:2px solid var(--ink)}.cost-table .per-piece th,.cost-table .per-piece td{color:var(--ink-soft)}.kpis{display:flex;justify-content:space-between;gap:16px;padding:10px 14px;margin:0}.kpis div{display:flex;flex-direction:column}.kpis dt{color:var(--ink-soft);font-size:11px;text-transform:uppercase;letter-spacing:.04em}.kpis dd{margin:0;font-weight:600}.chip{display:inline-block;border-radius:10px;padding:1px 9px;font-size:12px;font-weight:600}.chip.warn{background:var(--warn-soft);color:var(--warn)}.notice{margin:10px 16px;padding:9px 12px;border-radius:6px;font-size:13px}.notice.warn{background:var(--warn-soft);color:var(--warn)}.notice.error{background:var(--danger-soft);color:var(--danger)}.empty{color:var(--ink-soft)}@media(max-width:900px){.split{grid-template-columns:1fr}.panel-right{position:static}.topbar{flex-wrap:wrap;gap:12px}.topbar-kpis{gap:18px;order:3;width:100%}}.detail-empty{padding:48px 0;text-align:center}.detail-head h2{margin:0;font-size:17px}.detail-sub{margin:2px 0 12px;color:var(--ink-soft);font-size:12px}.detail-preview{margin:0 0 14px;display:grid;place-items:center;background:var(--bg);border-radius:var(--radius);padding:8px;min-height:200px}.detail-preview img{max-width:100%;max-height:300px;object-fit:contain}.detail-preview-empty{color:var(--ink-soft);font-size:12px}.detail-data{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:2px 20px;margin:0}.detail-data div{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dotted var(--line)}.detail-data dt{color:var(--ink-soft);font-size:12px}.detail-data dd{margin:0;font-size:12px;text-align:right}@media(max-width:1280px){.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.panel-right{grid-column:1 / -1;position:static}}@media(max-width:900px){.split{grid-template-columns:1fr}.panel-middle{position:static}}.upload-card{width:100%;max-width:560px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;display:grid;gap:14px}.upload-options{display:grid;grid-template-columns:1fr auto auto;gap:12px}.upload-options label{display:grid;gap:4px;font-size:12px;color:var(--ink-soft)}.upload-options input{width:90px}button.primary{background:var(--accent);border-color:var(--accent);color:#fff;padding:9px 16px;font-weight:500}button.primary:hover:not(:disabled){color:#fff;filter:brightness(1.08)}.job-bar{margin:12px 16px 0;padding:12px 14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.job-state{display:flex;align-items:center;gap:12px}.job-state progress{flex:1;height:8px}.job-pct{color:var(--ink-soft);font-size:12px;min-width:44px;text-align:right}.job-stages{margin:6px 0 0;color:var(--ink-soft);font-size:12px}.questions{display:grid;gap:10px;margin-top:12px;justify-items:start}.questions fieldset{border:1px solid var(--line);border-radius:6px;padding:8px 12px 12px;margin:0;width:100%}.questions legend{font-size:12px;color:var(--ink-soft);padding:0 4px}.chip.state{background:var(--accent-soft);color:var(--accent)}.chip.state.error{background:var(--danger-soft);color:var(--danger)}.warnings{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:6px}.warning{display:grid;gap:2px;padding:7px 10px;border-radius:6px;background:var(--bg);border-left:3px solid var(--line);font-size:12px}.warning.warn{border-left-color:var(--warn);background:var(--warn-soft)}.warning.blocker{border-left-color:var(--danger);background:var(--danger-soft)}.warning-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.warning-head code{color:var(--ink-soft);font-size:11px}.warning-stage{color:var(--ink-soft);font-size:11px;margin-left:auto}.warning-message{line-height:1.45}.chip.sev.info{background:var(--accent-soft);color:var(--accent)}.chip.sev.warn{background:var(--warn-soft);color:var(--warn)}.chip.sev.blocker{background:var(--danger-soft);color:var(--danger)}.chip.fidelity{margin-left:6px;font-size:10px;text-transform:uppercase;letter-spacing:.03em}.chip.fidelity.low_fidelity{background:var(--warn-soft);color:var(--warn)}.chip.fidelity.stub{background:var(--danger-soft);color:var(--danger)}.part-card{padding-bottom:4px}.part-card .part-head{align-items:flex-start;padding:12px 14px 6px}.part-card.selected{border-left-color:var(--accent)}.part-id{color:var(--ink-soft);font-size:10px;font-family:ui-monospace,monospace}.hint{color:var(--ink-soft);font-size:11px}.layout{margin:0;padding:8px;background:var(--bg);border-radius:var(--radius);display:grid;place-items:center}.layout img{max-width:100%;max-height:460px;object-fit:contain}.layout-actions{display:flex;gap:14px;margin:8px 0 0;font-size:12px}.cost-table th .bucket{display:block;font-weight:600}.cost-table th .row-sub{max-width:34ch}.row-sub.quiet,.quiet{color:var(--ink-soft);font-weight:400;font-size:11px}.provisional{display:grid;gap:3px}.provisional span{font-weight:400}.demand{flex-wrap:wrap;margin-bottom:8px}.snapshot{margin:10px 0 0;color:var(--ink-soft);font-size:11px}.version{color:var(--ink-soft);font-size:12px}.footer-upload{display:flex;gap:10px;justify-content:flex-end;padding:14px 16px}