:root{--checkout-bg: #f8f9fa;--checkout-surface: #ffffff;--checkout-border: #e2e8f0;--checkout-text: #2d3748;--checkout-muted: #718096;--checkout-primary: #10b981;--checkout-primary-hover: #059669;--checkout-radius: 12px;--checkout-shadow: 0 20px 44px rgba(15, 23, 42, .06);--checkout-font: Inter, system-ui, sans-serif}*{box-sizing:border-box}body{margin:0;font-family:var(--checkout-font);background:linear-gradient(180deg,#ffffff 0%,var(--checkout-bg) 100%);color:var(--checkout-text);line-height:1.6;-webkit-font-smoothing:antialiased}.payment-shell{min-height:100vh;padding:36px 20px 56px}.payment-layout{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(320px,408px);gap:22px;align-items:start}.payment-form-card,.payment-summary-card{background:#fffffffa;border:1px solid var(--checkout-border);border-radius:var(--checkout-radius);box-shadow:var(--checkout-shadow)}.payment-form-card,.payment-summary-card{padding:28px 28px 30px}.eyebrow,.card-label{margin:0 0 16px;color:var(--checkout-primary);font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.section-head h1{margin:0;font-size:clamp(2.1rem,3.6vw,3.2rem);line-height:1.02;font-weight:300;letter-spacing:-.02em}.subcopy{margin:14px 0 0;max-width:62ch;color:var(--checkout-muted);font-size:1rem;line-height:1.6}.checkout-form{margin-top:24px;display:grid;gap:16px}.checkout-form label{display:grid;gap:8px}.checkout-form span,.field-title{font-size:.95rem;font-weight:500}.checkout-form input{width:100%;border:1px solid var(--checkout-border);border-radius:999px;background:#fff;color:var(--checkout-text);padding:14px 16px;font:inherit}.helper-copy{margin:-2px 0 0;color:var(--checkout-muted);font-size:.92rem}.method-block{margin-top:8px}.method-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.method-chip{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:flex;align-items:center;gap:12px;border:1px solid var(--checkout-border);border-radius:var(--checkout-radius);padding:14px 16px;background:#fff;min-height:68px;text-align:left}.method-chip img{width:auto;max-width:84px;max-height:22px;object-fit:contain}.method-chip span{font-size:.92rem;font-weight:600}.method-chip.active{border-color:#10b98173;box-shadow:inset 0 0 0 1px #10b9812e;background:#10b9810d}.summary-top{padding-bottom:20px;border-bottom:1px solid var(--checkout-border)}.summary-brand{margin:0 0 12px;font-size:1.1rem;font-weight:600}.summary-top strong{display:block;font-size:2.1rem;line-height:1}.summary-top span{display:block;margin-top:10px;color:var(--checkout-muted);font-size:.92rem}.summary-section{padding:20px 0}.summary-row,.summary-total{display:flex;align-items:center;justify-content:space-between;gap:12px}.summary-row{padding:10px 0;color:var(--checkout-muted)}.summary-row strong{color:var(--checkout-text)}.summary-total{margin-top:4px;padding-top:18px;border-top:1px solid var(--checkout-border)}.summary-total strong{font-size:1.3rem}.primary-button{width:100%;margin-top:20px;border:0;border-radius:100px;background:var(--checkout-primary);color:#fff;font:inherit;font-weight:500;padding:16px 20px;cursor:pointer;transition:background-color .2s ease}.primary-button:hover{background:var(--checkout-primary-hover)}.mobile-submit{display:none}@media(max-width:1024px){.payment-layout,.method-grid{grid-template-columns:1fr}.payment-shell{padding-top:28px}.desktop-submit{display:none}.mobile-submit{display:block}}@media(max-width:640px){.payment-form-card,.payment-summary-card{padding:22px 20px 24px}.section-head h1{font-size:2rem}}