*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #F7931A;--primary-dark: #E6830F;--primary-light: #FFF3E6;--bg: #f5f7fa;--bg-card: #ffffff;--bg-input: #ffffff;--text: #1a1a2e;--text-dim: #6a6a7a;--text-muted: #9a9aaa;--success: #00D54B;--error: #FF5252;--border: #e8e8f0;--border-active: #00D54B;--radius: 12px;--radius-sm: 8px;--shadow: 0 12px 48px rgba(0, 0, 0, .1)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;-webkit-font-smoothing:antialiased}.page-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:#f0f2f5}.page-container.cashapp-theme{background:#f0f2f5}.payment-card{width:100%;max-width:420px;background:var(--bg-card);border-radius:24px;box-shadow:0 12px 48px #00000014;overflow:hidden;border:1px solid #e8e8f0;position:relative}.payment-card:before{content:"";position:absolute;top:12px;left:50%;transform:translate(-50%);width:48px;height:5px;background:#e0e0e8;border-radius:3px;z-index:10}.card-body{padding:32px 28px 28px}.checkout-input{display:flex;flex-direction:column;align-items:center;gap:18px;padding-top:12px}.checkout-header{display:flex;flex-direction:column;align-items:center;gap:10px}.checkout-title{display:flex;align-items:center;gap:6px;font-size:24px;font-weight:700;color:#1a1a2e}.cashapp-text{color:#00d54b}.secure-checkout-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:#00d54b;background:#eafff1;padding:6px 12px;border-radius:20px}.cashapp-intro-card{width:100%;background:#fff;border:1px solid #e8e8f0;border-radius:16px;padding:28px 20px;display:flex;flex-direction:column;align-items:center;gap:10px;box-shadow:0 2px 12px #00000008}.intro-title{font-size:20px;font-weight:700;color:#1a1a2e}.intro-subtitle{font-size:13px;color:#8a8a9a}.amount-select-box{width:100%;background:#eafff4;border-radius:16px;padding:18px;display:flex;flex-direction:column;gap:14px}.amount-select-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:#008a3a;letter-spacing:.3px}.amount-presets{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.amount-preset-btn{padding:12px 8px;border:1px solid #c8f0d8;border-radius:12px;background:#fff;color:#1a1a2e;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;font-family:inherit}.amount-preset-btn:hover{border-color:#00d54b;background:#f0fff6}.amount-preset-btn.active{background:#00d54b;border-color:#00d54b;color:#fff;box-shadow:0 4px 12px #00d54b40}.custom-amount-input{position:relative;display:flex;align-items:center}.custom-amount-prefix{position:absolute;left:16px;font-size:16px;font-weight:700;color:#8a8a9a;pointer-events:none}.custom-amount-field{width:100%;padding:14px 16px 14px 32px;border:1px solid #c8f0d8;border-radius:12px;background:#fff;font-size:16px;font-weight:600;color:#1a1a2e;outline:none;font-family:inherit;transition:border-color .15s,box-shadow .15s}.custom-amount-field::placeholder{color:#b0b0c0}.custom-amount-field:focus{border-color:#00d54b;box-shadow:0 0 0 3px #00d54b1f}.btc-estimate-light{font-size:12px;color:#8a8a9a;font-weight:500;text-align:center}.checkout-error{font-size:12px;color:#ff5252;font-weight:600;text-align:center}.checkout-pay-btn{width:100%;padding:17px;background:#00d54b;border:none;border-radius:14px;color:#fff;font-size:17px;font-weight:700;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 8px 24px #00d54b59;display:flex;align-items:center;justify-content:center;gap:8px}.checkout-pay-btn:hover:not(:disabled){background:#00c244;transform:translateY(-1px);box-shadow:0 10px 28px #00d54b73}.checkout-pay-btn:disabled{opacity:.7;cursor:not-allowed}.spinner-light{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.checkout-footer-text{font-size:12px;color:#8a8a9a;font-weight:600;text-align:center}.payment-card.invoice-mode{background:#fff;border:none;box-shadow:0 12px 48px #0000001f}.invoice-cashapp{display:flex;flex-direction:column;align-items:center;gap:20px;padding:8px 0 16px}.invoice-timer-bar{width:100%;background:#fff8e6;border:1px solid #ffe4a3;color:#b87300;font-size:13px;font-weight:700;letter-spacing:.5px;text-transform:uppercase;padding:10px 16px;border-radius:10px;display:flex;align-items:center;justify-content:center;gap:8px}.timer-icon{font-size:14px}.invoice-amount-section{text-align:center}.amount-due-label{font-size:12px;font-weight:700;color:#8a8a9a;letter-spacing:1px;margin-bottom:4px}.amount-due-value{font-size:48px;font-weight:800;color:#00c853;line-height:1.1;letter-spacing:-1px}.amount-due-hint{font-size:14px;color:#8a8a9a;margin-top:6px}.qr-card{width:100%;background:#fff;border:1px solid #e8e8f0;border-radius:16px;padding:24px;display:flex;justify-content:center;box-shadow:0 4px 20px #0000000d}.qr-link{text-decoration:none;display:inline-flex}.qr-frame{position:relative;display:inline-flex;align-items:center;justify-content:center}.qr-frame svg{display:block}.qr-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;border-radius:12px;padding:4px;box-shadow:0 2px 12px #0000001a}.qr-placeholder{width:220px;height:220px;background:#f5f5fa;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#b0b0c0;font-size:14px}.invoice-info-list{width:100%;display:flex;flex-direction:column;gap:14px}.info-row{display:flex;align-items:center;justify-content:space-between;gap:12px}.info-label{font-size:11px;font-weight:700;color:#8a8a9a;letter-spacing:.8px;flex-shrink:0}.info-value-group{display:flex;align-items:center;gap:10px}.info-value{font-size:13px;color:#1a1a2e;font-weight:600}.mono{font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px}.info-value.invoice-code{font-size:13px;color:#1a1a2e}.status-badge{font-size:10px;font-weight:800;letter-spacing:.5px;padding:4px 10px;border-radius:20px;text-transform:uppercase}.status-badge.pending{background:#fff8e6;color:#b87300}.invoice-actions{width:100%;display:flex;flex-direction:column;gap:12px;margin-top:8px}.cashapp-pay-btn{width:100%;padding:16px;background:#00d54b;border:none;border-radius:14px;color:#fff;font-size:17px;font-weight:700;text-align:center;text-decoration:none;cursor:pointer;transition:all .2s;font-family:inherit;box-shadow:0 6px 20px #00d54b4d}.cashapp-pay-btn:hover{background:#00c244;transform:translateY(-1px);box-shadow:0 8px 24px #00d54b66}.copy-invoice-btn{width:100%;padding:12px;background:transparent;border:none;color:#1a1a2e;font-size:15px;font-weight:600;cursor:pointer;transition:color .2s;font-family:inherit}.copy-invoice-btn:hover{color:#00c853}.back-link{background:transparent;border:none;color:#8a8a9a;font-size:13px;font-weight:500;cursor:pointer;margin-top:4px;font-family:inherit}.back-link:hover{color:#1a1a2e}.confirmed-section{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}.confirmed-icon{width:64px;height:64px;border-radius:50%;background:var(--success);display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff;font-weight:700;margin-top:8px}.confirmed-title{font-size:22px;font-weight:700;color:#1a1a2e}.confirmed-amount{font-size:28px;font-weight:800;color:#00d54b}.confirmed-btc{display:block;font-size:14px;color:#8a8a9a;font-weight:500;margin-top:4px}.confirmed-details{width:100%;background:#f8f8fc;border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:10px}.detail-row{display:flex;justify-content:space-between;font-size:13px;color:#1a1a2e}.detail-row span:first-child{color:#8a8a9a}.error-section{display:flex;flex-direction:column;align-items:center;gap:14px;padding:20px 0}.error-icon{width:48px;height:48px;border-radius:50%;background:#ff5252;display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff;font-weight:700}.error-section p{font-size:14px;color:var(--text-dim);text-align:center}@media (max-width: 520px){.page-container{padding:12px}.payment-card{border-radius:20px}.card-body{padding:28px 20px 24px}.amount-due-value{font-size:40px}.qr-card{padding:18px}.invoice-cashapp{gap:16px}.cashapp-pay-btn{font-size:16px;padding:14px}.amount-presets{gap:8px}.amount-preset-btn{font-size:13px;padding:10px 6px}}