:root{--bg: #f4f5f7;--card-bg: #ffffff;--text: #0f172a;--text-muted: #64748b;--border: #e2e8f0;--border-strong: #cbd5e1;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef2ff;--danger: #dc2626;--danger-soft: #fef2f2;--success: #16a34a;--success-soft: #f0fdf4;--radius: 12px;--radius-sm: 8px;--shadow: 0 8px 32px rgba(15, 23, 42, .08);--focus-ring: 0 0 0 3px rgba(79, 70, 229, .18);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text)}#root{display:flex;flex-direction:column;align-items:center;padding:32px 16px 64px}.shell{width:100%;max-width:560px}.brand-row{display:flex;align-items:center;gap:10px;margin-bottom:20px;color:var(--text-muted);font-size:14px}.brand-row .lock{color:var(--success)}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.summary{margin-bottom:16px;padding:16px 20px;background:var(--primary-soft);border-radius:var(--radius-sm);border:1px solid #c7d2fe}.summary-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--primary-hover);margin:0 0 6px}.summary-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.summary-plan{font-size:18px;font-weight:600}.summary-total{font-size:20px;font-weight:700;color:var(--primary-hover)}h1{font-size:22px;margin:0 0 4px}h2{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin:24px 0 12px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field{display:flex;flex-direction:column;gap:4px}.field.full{grid-column:1 / -1}label{font-size:12px;font-weight:600;color:var(--text-muted)}.input-wrap{position:relative}input{width:100%;height:44px;padding:0 12px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:#fff;color:var(--text);font:inherit;font-size:15px;outline:none;transition:border-color .12s ease,box-shadow .12s ease;font-variant-numeric:tabular-nums}input::placeholder{color:#94a3b8}input:focus{border-color:var(--primary);box-shadow:var(--focus-ring)}input[aria-invalid=true]{border-color:var(--danger);background:var(--danger-soft)}.card-input{padding-right:64px;letter-spacing:.04em}.brand-badge{position:absolute;right:8px;top:50%;transform:translateY(-50%);background:#0f172a;color:#fff;font-size:11px;font-weight:700;letter-spacing:.06em;padding:4px 8px;border-radius:6px;text-transform:uppercase}.brand-badge.visa{background:#1a1f71}.brand-badge.mastercard{background:#eb001b}.brand-badge.amex{background:#2e77bb}.brand-badge.discover{background:#ff6000}.brand-badge.unknown{background:#94a3b8}.err{font-size:12px;color:var(--danger);min-height:16px;line-height:1.3}.actions{margin-top:24px;display:flex;flex-direction:column;gap:10px}button{font:inherit;cursor:pointer;border:none;border-radius:var(--radius-sm);height:48px;font-size:16px;font-weight:600;transition:background-color .12s ease,box-shadow .12s ease,color .12s ease}button:disabled{cursor:not-allowed;opacity:.55}button.primary{background:var(--primary);color:#fff}button.primary:hover:not(:disabled){background:var(--primary-hover)}button.primary:focus-visible{box-shadow:var(--focus-ring)}button.secondary{background:transparent;color:var(--text-muted);border:1px solid var(--border)}button.secondary:hover:not(:disabled){background:var(--bg);color:var(--text)}.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin-right:8px;vertical-align:-3px}@keyframes spin{to{transform:rotate(360deg)}}.trust{margin-top:20px;padding:16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}.trust-row{display:flex;align-items:center;gap:8px;color:var(--text-muted);font-size:13px}.trust-logos{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.network{display:inline-flex;align-items:center;justify-content:center;background:#fff;border:1px solid var(--border);color:#0f172a;border-radius:6px;padding:4px 10px;font-size:11px;font-weight:700;letter-spacing:.06em;min-width:44px;height:24px}.network.visa{color:#1a1f71}.network.mastercard{color:#eb001b}.network.amex{color:#2e77bb}.network.discover{color:#ff6000}.pci-badge{display:inline-flex;align-items:center;gap:6px;background:var(--success-soft);color:#15803d;border:1px solid #bbf7d0;padding:4px 10px;border-radius:6px;font-size:11px;font-weight:600}.banner{margin-top:16px;padding:12px 14px;border-radius:var(--radius-sm);font-size:14px;background:var(--danger-soft);color:var(--danger);border:1px solid #fecaca}.invalid-order{text-align:center;padding:32px 24px;color:var(--text)}.invalid-order p{color:var(--text-muted);margin-top:8px;font-size:14px}.success-state{text-align:center;padding:32px 16px}.success-state .icon{display:inline-flex;width:56px;height:56px;align-items:center;justify-content:center;border-radius:50%;background:var(--success-soft);color:var(--success);margin-bottom:12px}.success-state p{color:var(--text-muted);margin-top:6px;font-size:14px}@media (max-width: 480px){#root{padding-top:16px}.card{padding:20px 16px;border-radius:10px}.form-grid{grid-template-columns:1fr}.field.half{grid-column:auto}}