*{box-sizing:border-box}:root{--bg: #f1f5f9;--surface: #ffffff;--border: #cbd5e1;--text: #0f172a;--text-secondary: #64748b;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--success: #16a34a;--radius: 12px}body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.download-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px 16px}.card{width:100%;max-width:420px;background:var(--surface);border-radius:var(--radius);padding:32px 28px;box-shadow:0 4px 24px #0f172a14}.download-box h1{margin:0 0 8px;font-size:1.35rem}.download-sub{margin:0 0 24px;font-size:.9rem;color:var(--text-secondary);line-height:1.5}.form-row{margin-bottom:16px}.form-row label{display:block;margin-bottom:6px;font-size:.875rem;font-weight:500;color:#334155}.form-row input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:1rem;outline:none}.form-row input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb26}button[type=submit]{width:100%;margin-top:8px;padding:11px 16px;background:var(--primary);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer}button[type=submit]:hover:not(:disabled){background:var(--primary-hover)}button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.status{margin:16px 0 0;font-size:.875rem;line-height:1.5}.status.error{color:var(--danger)}.status.success{color:var(--success)}