:root{--bg:#f5f7fb;--surface:#fff;--text:#101828;--muted:#667085;--line:#e2e8f0;--brand:#5b5ce2;--soft:#eef2ff;--ok:#16a34a;--bad:#dc2626}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,sans-serif}.shell{width:min(960px,calc(100% - 32px));margin:auto}header{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;background:#ffffffdc;backdrop-filter:blur(14px);position:sticky;top:0;z-index:5}.nav{display:flex;justify-content:space-between;align-items:center}.back{color:var(--muted);text-decoration:none;font-size:14px}.back:hover{color:var(--brand)}.brand{font-weight:800}.hero{padding:46px 0 25px}.hero small{color:var(--brand);font-weight:800;text-transform:uppercase;letter-spacing:.09em}.hero h1{font-size:clamp(32px,6vw,52px);letter-spacing:-.04em;margin:10px 0}.hero p{color:var(--muted);line-height:1.6;max-width:680px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;margin-bottom:42px;box-shadow:0 16px 45px #0f172a0b}.grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{margin-bottom:16px}.field label{display:block;font-size:12px;font-weight:700;margin-bottom:7px;color:#475467}.input,select,textarea{width:100%;border:1px solid var(--line);border-radius:11px;background:#fff;padding:11px 12px;font:14px inherit;color:var(--text);outline:none}.input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px #5b5ce216}textarea{min-height:88px;resize:vertical}.drop{border:2px dashed #cbd5e1;border-radius:16px;padding:34px 18px;text-align:center;cursor:pointer;background:#fafbff;transition:.2s}.drop:hover,.drop.drag{border-color:var(--brand);background:var(--soft)}.drop strong{display:block;margin-bottom:8px}.drop span{font-size:13px;color:var(--muted)}.btn{border:0;border-radius:11px;padding:12px 17px;font-weight:700;cursor:pointer;background:var(--brand);color:#fff}.btn.secondary{background:#eef2f8;color:var(--text)}.btn.danger{background:#fee2e2;color:#b91c1c}.btn:disabled{opacity:.5;cursor:not-allowed}.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.status{display:none;margin-top:16px;padding:12px;border-radius:10px;font-size:13px;background:#f1f5f9;color:#475569}.status.show{display:block}.status.ok{background:#dcfce7;color:#166534}.status.bad{background:#fee2e2;color:#991b1b}.preview{margin-top:18px;max-height:420px;overflow:auto}.preview img{max-width:100%;border-radius:10px}.file-list{display:grid;gap:8px;margin-top:15px}.file{padding:11px 13px;background:#f8fafc;border:1px solid var(--line);border-radius:10px;font-size:13px;display:flex;justify-content:space-between}.rows{display:grid;gap:10px}.row{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:8px}.row button{border:0;border-radius:9px;background:#fee2e2;color:#b91c1c;padding:0 12px;cursor:pointer}.totals{margin-left:auto;width:min(320px,100%);margin-top:18px}.total-line{display:flex;justify-content:space-between;padding:7px 0}.total-line.grand{border-top:1px solid var(--line);font-size:18px;font-weight:800;margin-top:5px;padding-top:12px}.note{font-size:12px;color:var(--muted);line-height:1.5;margin-top:16px}@media(max-width:650px){.grid{grid-template-columns:1fr}.row{grid-template-columns:1fr 1fr}.row .desc{grid-column:1/-1}.panel{padding:18px}.hero{padding-top:34px}}