:root{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#172033;background:#f2f5f9;line-height:1.45;--ink:#0f172a;--muted:#64748b;--line:#dce3ec;--brand:#0f3b5f;--accent:#f59e0b;--ok:#087f5b;--danger:#b42318}*{box-sizing:border-box}body{margin:0;background:#f2f5f9}button,input,select,textarea{font:inherit}button{cursor:pointer}.topbar{height:72px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:20;box-shadow:0 2px 12px #0002}.brand{display:flex;gap:12px;align-items:center}.brand .logo{width:42px;height:42px;display:grid;place-items:center;border:2px solid #fff;border-radius:10px;font-weight:900;background:#fff1;color:var(--accent)}.brand b{display:block;letter-spacing:.03em}.brand small{display:block;color:#b6c2d0}.status{display:flex;gap:10px;align-items:center}.pill{font-size:12px;font-weight:800;padding:5px 9px;border-radius:999px}.online{background:#d1fae5;color:#065f46}.offline{background:#fee2e2;color:#991b1b}.version{color:#cbd5e1;font-size:13px}.main{max-width:1500px;margin:0 auto;padding:28px 28px 100px}.bottom-nav{position:fixed;left:50%;transform:translateX(-50%);bottom:18px;z-index:30;background:#fff;border:1px solid #dbe3ec;border-radius:18px;padding:6px;display:flex;box-shadow:0 14px 38px #0f172a24;gap:2px}.bottom-nav button{border:0;background:transparent;min-width:78px;padding:7px 10px;border-radius:12px;color:#64748b}.bottom-nav i,.bottom-nav span{display:block;font-style:normal}.bottom-nav i{font-size:18px}.bottom-nav span{font-size:11px}.bottom-nav button.active{background:#eaf1f7;color:#0f3b5f;font-weight:800}.hero,.section-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px}.hero{background:linear-gradient(120deg,#0f172a,#17496f);color:white;padding:30px;border-radius:22px}.hero h1,.section-head h1{margin:0 0 6px;font-size:30px}.hero p,.section-head p{margin:0;color:#d7e0ea}.section-head p{color:var(--muted)}.primary{background:var(--accent);color:#241900;border:0;padding:11px 16px;border-radius:10px;font-weight:800}.primary:disabled{opacity:.4;cursor:not-allowed}.metrics{display:grid;grid-template-columns:repeat(5,minmax(150px,1fr));gap:14px;margin:18px 0}.metric{background:#fff;border:1px solid var(--line);border-radius:15px;padding:16px;min-height:110px;box-shadow:0 2px 8px #0f172a08}.metric span,.metric small{display:block;color:var(--muted)}.metric strong{display:block;font-size:23px;margin:8px 0}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 3px 12px #0f172a08}.panel h2{margin:0 0 14px;font-size:18px}.split{display:grid;grid-template-columns:minmax(320px,.8fr) minmax(480px,1.2fr);gap:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-grid label,.toolbox label,.selectors label{font-size:12px;color:#475569;font-weight:700}.form-grid input,.form-grid select,.form-grid textarea,.toolbox select,.selectors select{width:100%;margin-top:5px;border:1px solid #cfd8e3;border-radius:9px;padding:10px;background:#fff;color:#172033}.span-2{grid-column:span 2}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th{background:#f8fafc;color:#475569;text-align:left;font-weight:800}th,td{padding:11px 10px;border-bottom:1px solid #e8edf3;white-space:nowrap}tbody tr[data-open-project]{cursor:pointer}tbody tr[data-open-project]:hover{background:#f8fafc}.tag{padding:4px 7px;border-radius:7px;background:#eaf1f7;color:#0f3b5f;font-size:11px;font-weight:800}.empty{text-align:center;color:#7b8795;padding:24px}.selectors{display:flex;gap:12px;align-items:end;background:#fff;border:1px solid var(--line);padding:12px 14px;border-radius:14px;margin-bottom:14px}.selectors label{flex:1}.selectors button{height:40px;border:1px solid #ccd6e2;background:#fff;border-radius:9px;padding:0 12px}.survey-layout{display:grid;grid-template-columns:190px minmax(0,1fr) 210px;gap:12px;align-items:start}.toolbox,.checklist{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;position:sticky;top:84px}.toolbox h3,.checklist h3{margin:0 0 10px}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:12px}.tool-grid button,.toolbox>button{border:1px solid #ccd6e2;background:#fff;border-radius:9px;padding:9px;margin:4px 0;width:100%}.tool-grid button.active{background:#0f3b5f;color:#fff}.zoom{display:flex;gap:6px;align-items:center;justify-content:center;margin:10px 0}.zoom button{width:34px;height:34px;border:1px solid #ccd6e2;background:#fff;border-radius:8px}.hint{font-size:11px;color:#64748b;margin-top:10px}.drawing-panel{background:#dfe5ec;border-radius:14px;min-height:600px;overflow:hidden}.canvas-scroll{overflow:auto;max-height:72vh;padding:14px}.survey-canvas{background:#fff;display:block;border-radius:8px;box-shadow:0 2px 10px #0f172a12;color:#0f172a}.wall{stroke:#16263a;stroke-width:6;stroke-linecap:round}.dim{font-size:11px;text-anchor:middle;fill:#475569}.label{font-size:10px;fill:#334155}.opening{fill:#f59e0b;stroke:#fff;stroke-width:2}.mep{fill:#2563eb;stroke:#fff;stroke-width:2}.equip{fill:#d7e7dc;stroke:#1d5f3b;stroke-width:2}.equip-label{font-size:9px;fill:#153824}.draft{fill:#ef4444}.check{display:flex;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid #eef2f6;font-size:12px}.check span{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#fee2e2;color:#991b1b;font-weight:900}.check.done span{background:#d1fae5;color:#065f46}.checklist small{display:block;color:#64748b;margin-top:3px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.catalog-card{border:1px solid #e1e7ee;border-radius:12px;padding:12px;display:flex;gap:10px}.catalog-icon{width:40px;height:40px;border-radius:9px;background:#eef3f7;display:grid;place-items:center}.catalog-card b,.catalog-card small,.catalog-card span,.catalog-card strong{display:block}.catalog-card small,.catalog-card span{color:#64748b;font-size:11px}.catalog-card strong{margin-top:6px}.quote-preview{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;max-width:1050px;margin:0 auto 18px}.quote-head{display:flex;justify-content:space-between;align-items:start;border-bottom:3px solid #0f3b5f;padding-bottom:16px}.quote-head small{display:block;color:#64748b}.quote-head h2{margin:0;color:#0f3b5f}.quote-total{margin-left:auto;max-width:380px;padding-top:16px;display:grid;gap:8px}.quote-total span{display:flex;justify-content:space-between}.quote-total strong{background:#0f172a;color:white;padding:12px;border-radius:9px;text-align:right}.revision{display:grid;grid-template-columns:1fr 1fr auto auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid #e8edf3}.revision span,.revision em{color:#64748b;font-size:12px}.alert{padding:12px 14px;border-radius:10px;background:#eef4ff;color:#264c7d;margin:12px 0}.alert.danger{background:#fff1f0;color:#9f241c}.details{display:grid;grid-template-columns:140px 1fr;gap:8px}.details dt{color:#64748b}.details dd{margin:0;font-weight:700}.toast{position:fixed;right:22px;top:88px;z-index:99;background:#0f172a;color:#fff;padding:12px 16px;border-radius:10px;box-shadow:0 10px 30px #0003;max-width:360px}.toast.warn{background:#92400e}.toast.err{background:#991b1b}.fatal,.splash{padding:40px;text-align:center}.check-label{display:flex;gap:8px;align-items:center}.check-label input{width:auto;margin:0}@media(max-width:1050px){.metrics{grid-template-columns:repeat(3,1fr)}.survey-layout{grid-template-columns:160px 1fr}.checklist{grid-column:1/-1;position:static;display:grid;grid-template-columns:repeat(4,1fr);gap:4px}.split{grid-template-columns:1fr}}@media(max-width:700px){.topbar{height:62px;padding:0 14px}.brand small{display:none}.brand b{font-size:13px}.main{padding:16px 12px 96px}.bottom-nav{bottom:8px;width:calc(100% - 12px);overflow-x:auto;justify-content:flex-start;border-radius:14px}.bottom-nav button{min-width:68px;padding:5px}.hero,.section-head{align-items:flex-start;flex-direction:column}.hero h1,.section-head h1{font-size:24px}.metrics{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.selectors{display:grid;grid-template-columns:1fr 1fr}.selectors button{grid-column:1/-1}.survey-layout{grid-template-columns:1fr}.toolbox,.checklist{position:static}.toolbox{display:grid;grid-template-columns:1fr 1fr;gap:8px}.toolbox h3,.toolbox .hint{grid-column:1/-1}.tool-grid{grid-column:1/-1;grid-template-columns:repeat(4,1fr)}.drawing-panel{min-height:460px}.canvas-scroll{max-height:55vh}.checklist{grid-template-columns:1fr 1fr}.cards{grid-template-columns:1fr}.revision{grid-template-columns:1fr 1fr}.quote-preview{padding:16px}.status .version{display:none}}

/* v1.0 auth/sync */
.sync-btn{border:0;cursor:pointer;font:inherit}.sync-btn:hover{filter:brightness(.96)}
.user-mini{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;color:#475569}
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#f8fafc,#e2e8f0)}
.auth-card{width:min(520px,100%);background:white;border:1px solid #e2e8f0;border-radius:18px;padding:24px;box-shadow:0 20px 60px rgba(15,23,42,.12)}
.auth-brand{display:flex;gap:14px;align-items:center;margin-bottom:20px}.auth-brand .logo{flex:0 0 auto}.auth-brand h1{font-size:20px;margin:0}.auth-brand p{margin:4px 0 0;color:#64748b;font-size:13px}
.auth-form{display:grid;gap:14px}.auth-form label{display:grid;gap:6px;font-size:13px;font-weight:600}.auth-form input,.auth-form select{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:10px;font:inherit}
.auth-card hr{border:0;border-top:1px solid #e2e8f0;margin:20px 0}.auth-version{display:block;margin-top:18px;color:#94a3b8;text-align:center}.subtle{color:#64748b;font-size:13px}.button-row{display:flex;gap:8px;flex-wrap:wrap}.danger-btn{border-color:#fecaca;color:#b91c1c}.span-all{grid-column:1/-1}
@media(max-width:720px){.user-mini{display:none}.status{gap:4px}.sync-btn{max-width:94px;overflow:hidden;text-overflow:ellipsis}.auth-card{padding:18px;border-radius:14px}}
.conflict-row{display:flex;justify-content:space-between;gap:14px;align-items:center;padding:12px 0;border-top:1px solid #e2e8f0}.conflict-row:first-child{border-top:0}.conflict-row small{display:block;color:#64748b;margin-top:3px}
@media(max-width:640px){.conflict-row{align-items:flex-start;flex-direction:column}}