*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--brand: #2563eb;--brand-dark: #1d4ed8;--brand-soft: rgba(37,99,235,.08);--bg: #f8fafc;--surface: #ffffff;--border: #e2e8f0;--text: #0f172a;--text2: #475569;--text3: #94a3b8;--error: #dc2626;--success: #16a34a;--radius: 10px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-lg: 0 10px 25px rgba(0,0,0,.08);--sans: "Inter", system-ui, sans-serif;--mono: "DM Mono", monospace}body{font-family:var(--sans);background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}.checkout-layout{min-height:100vh;display:flex;flex-direction:column}.checkout-header{background:var(--surface);border-bottom:1px solid var(--border);padding:16px 24px;display:flex;align-items:center;justify-content:space-between}.checkout-header img{height:32px}.checkout-header .brand-name{font-size:18px;font-weight:700;color:var(--brand)}.checkout-body{flex:1;display:grid;grid-template-columns:1fr 380px;gap:32px;max-width:960px;margin:40px auto;padding:0 24px;width:100%}@media(max-width:720px){.checkout-body{grid-template-columns:1fr;margin:16px auto}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card+.card{margin-top:16px}.card-title{font-size:14px;font-weight:600;color:var(--text2);letter-spacing:.5px;text-transform:uppercase;margin-bottom:16px}.summary-price{font-size:32px;font-weight:700;color:var(--text);margin:8px 0 4px}.summary-interval{font-size:13px;color:var(--text3)}.summary-trial{margin-top:12px;background:var(--brand-soft);color:var(--brand);border-radius:6px;padding:8px 12px;font-size:13px;font-weight:500}.summary-row{display:flex;justify-content:space-between;font-size:13px;color:var(--text2);padding:6px 0;border-bottom:1px solid var(--border)}.summary-row:last-child{border-bottom:none}.summary-row strong{color:var(--text)}.steps{display:flex;gap:0;margin-bottom:24px}.step{flex:1;text-align:center;font-size:12px;padding:8px 4px;color:var(--text3);border-bottom:2px solid var(--border);position:relative}.step.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}.step.done{color:var(--success);border-bottom-color:var(--success)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:12px;font-weight:500;color:var(--text2);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.form-input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-family:var(--sans);font-size:14px;color:var(--text);background:var(--surface);outline:none;transition:border .15s}.form-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}.form-input.error{border-color:var(--error)}.form-hint{font-size:11px;color:var(--text3);margin-top:4px}.form-error{font-size:11px;color:var(--error);margin-top:4px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:480px){.two-col{grid-template-columns:1fr}}.payment-options{display:flex;flex-direction:column;gap:10px}.payment-option{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .15s}.payment-option:hover,.payment-option.selected{border-color:var(--brand);background:var(--brand-soft)}.payment-option input[type=radio]{accent-color:var(--brand);width:16px;height:16px}.payment-label{font-size:14px;font-weight:500}.payment-hint{font-size:11px;color:var(--text3)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:none;transition:all .15s;gap:6px;font-family:var(--sans)}.btn-primary{background:var(--brand);color:#fff;width:100%}.btn-primary:hover:not(:disabled){background:var(--brand-dark)}.btn-primary:disabled{opacity:.55;cursor:default}.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border)}.btn-ghost:hover{background:var(--bg)}.btn-row{display:flex;gap:10px;margin-top:20px}.btn-row .btn-ghost{flex:0 0 auto}.btn-row .btn-primary{flex:1}.agb-row{display:flex;align-items:flex-start;gap:10px;font-size:12px;color:var(--text2);margin-top:16px}.agb-row input{accent-color:var(--brand);margin-top:2px;flex-shrink:0}.agb-row a{color:var(--brand);text-decoration:none}.agb-row a:hover{text-decoration:underline}.error-box{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:12px 14px;font-size:13px;color:var(--error);margin-bottom:16px}.success-screen{text-align:center;padding:40px 24px}.success-icon{font-size:56px;margin-bottom:16px}.success-title{font-size:22px;font-weight:700;margin-bottom:8px}.success-sub{font-size:14px;color:var(--text2);margin-bottom:24px}.loader{display:flex;align-items:center;justify-content:center;min-height:200px;gap:10px;color:var(--text3);font-size:14px}.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.checkout-footer{text-align:center;padding:20px;font-size:11px;color:var(--text3);border-top:1px solid var(--border)}.checkout-footer a{color:var(--text3);text-decoration:none}.checkout-footer a:hover{color:var(--text2)}.embed-layout{background:transparent;padding:0}.embed-body{padding:0;width:100%}.embed-body .card{border-radius:0;border:none;box-shadow:none;padding:16px}