:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--background:#f4f6fb;--foreground:#111827;--card:#fff;--card-foreground:#111827;--border:#e4e7ee;--input:#e5e7eb;--muted:#f8fafc;--muted-foreground:#607089;--primary:#0f172a;--primary-foreground:#fff;--success:#166534;--success-bg:#eaf8ef;--error:#b42318;--error-bg:#fff1f1;--radius:14px}*{box-sizing:border-box}body{color:var(--foreground);background:radial-gradient(circle at 15% 10%, #e7efff 0%, transparent 38%), radial-gradient(circle at 85% 90%, #e9f4ff 0%, transparent 32%), var(--background);margin:0;font-family:Inter,Segoe UI,-apple-system,BlinkMacSystemFont,Helvetica Neue,sans-serif}.page-shell{place-items:center;min-height:100vh;padding:24px;display:grid}.upload-card{border:1px solid var(--border);border-radius:calc(var(--radius) + 4px);background:var(--card);width:100%;max-width:580px;color:var(--card-foreground);padding:28px;box-shadow:0 16px 50px #0f172a1a,0 2px 8px #0f172a0d}.card-header{margin-bottom:20px}.brand-mark{place-items:center;width:72px;height:72px;margin-bottom:10px;display:grid}.kicker{letter-spacing:.08em;text-transform:uppercase;color:#334155;margin:0 0 8px;font-size:.76rem;font-weight:700}h1{letter-spacing:-.02em;margin:0;font-size:clamp(1.55rem,2vw,1.9rem);line-height:1.25}.subtitle{color:var(--muted-foreground);margin:10px 0 0}.form-grid{gap:14px;display:grid}.field{gap:8px;display:grid}label{font-size:.92rem;font-weight:600}input[type=file],input[type=password]{border:1px solid var(--input);width:100%;min-height:42px;color:var(--foreground);background:#fff;border-radius:10px;outline:none;padding:10px 12px;font-size:.95rem;transition:border-color .2s,box-shadow .2s}input[type=file]{background:var(--muted);cursor:pointer}input[type=file]::file-selector-button{border:1px solid var(--border);color:var(--foreground);cursor:pointer;background:#fff;border-radius:8px;margin-right:10px;padding:7px 10px;font-weight:600}input[type=file]:focus,input[type=password]:focus{border-color:#6b86c7;box-shadow:0 0 0 3px #6b86c733}.field-note{color:var(--muted-foreground);margin:0;font-size:.86rem}button{background:var(--primary);min-height:44px;color:var(--primary-foreground);cursor:pointer;border:0;border-radius:10px;margin-top:4px;font-size:.95rem;font-weight:650;transition:transform .15s,opacity .2s,box-shadow .2s;box-shadow:0 8px 22px #0f172a40}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{opacity:.65;cursor:not-allowed;transform:none}.hint{color:var(--muted-foreground);margin:14px 0 0;font-size:.88rem}.alert{border:1px solid var(--border);border-radius:10px;margin:12px 0 0;padding:10px 12px;font-size:.9rem}.alert-success{color:var(--success);background:var(--success-bg);border-color:#bbebcc}.alert-neutral{background:var(--muted)}.alert-neutral code{border:1px solid var(--border);background:#fff;border-radius:6px;padding:2px 6px;font-size:.85rem}.alert-error{color:var(--error);background:var(--error-bg);border-color:#f9c9cb}@media (max-width:640px){.upload-card{padding:22px}}