*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--purple:#4f6ef7;--purple-light:#eef1fe;--green:#16a34a;--green-light:#dcfce7;--amber:#d97706;--amber-light:#fef3c7;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-700:#374151;--gray-900:#111827;--radius:12px;--radius-sm:8px;--shadow:0 4px 24px rgba(0,0,0,.08);--shadow-lg:0 8px 40px rgba(0,0,0,.12)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gray-50);color:var(--gray-900);-webkit-font-smoothing:antialiased}.pay-page,body{min-height:100vh}.pay-page{display:flex;flex-direction:column;align-items:center;padding:32px 16px 64px}.pay-card{width:100%;max-width:560px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.pay-header{background:var(--purple);padding:28px 32px 24px;display:flex;align-items:center;gap:16px}.pay-header__logo{object-fit:cover}.pay-header__logo,.pay-header__logo-placeholder{width:48px;height:48px;border-radius:10px;flex-shrink:0}.pay-header__logo-placeholder{background:hsla(0,0%,100%,.2);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;color:#fff}.pay-header__info{flex:1 1}.pay-header__business{font-size:18px;font-weight:700;color:#fff;margin:0 0 2px}.pay-header__id{font-size:12px;color:hsla(0,0%,100%,.7);margin:0}.pay-body{padding:28px 32px}.pay-section{margin-bottom:24px}.pay-section-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--gray-400);margin-bottom:10px}.pay-summary{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.pay-summary__name{font-size:20px;font-weight:700;color:var(--gray-900)}.pay-summary__sub{font-size:13px;color:var(--gray-500);margin-top:3px}.pay-summary__total{text-align:right}.pay-summary__amount{font-size:26px;font-weight:800;color:var(--gray-900)}.pay-summary__currency{font-size:12px;color:var(--gray-400);text-transform:uppercase}.pay-items{border:1px solid var(--gray-200);border-radius:var(--radius-sm);overflow:hidden}.pay-item{display:flex;justify-content:space-between;align-items:center;padding:11px 14px;font-size:14px;border-bottom:1px solid var(--gray-100)}.pay-item:last-child{border-bottom:none}.pay-item__desc{color:var(--gray-700)}.pay-item__qty{color:var(--gray-400);font-size:12px;margin-left:8px}.pay-item__amount{font-weight:600;color:var(--gray-900)}.pay-notes{font-size:13px;color:var(--gray-500);font-style:italic;margin-top:12px;padding:10px 12px;background:var(--gray-50);border-radius:var(--radius-sm);border-left:3px solid var(--gray-200)}.pay-milestones{display:flex;flex-direction:column;gap:10px}.pay-milestone{border:1px solid var(--gray-200);border-radius:var(--radius-sm);padding:14px 16px;display:flex;align-items:center;gap:12px;transition:border-color .15s}.pay-milestone--paid{background:var(--green-light);border-color:rgba(22,163,74,.2)}.pay-milestone--open{background:#fff}.pay-milestone__dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;background:var(--gray-200)}.pay-milestone__dot--paid{background:var(--green)}.pay-milestone__dot--open{background:var(--purple)}.pay-milestone__info{flex:1 1}.pay-milestone__label{font-size:14px;font-weight:600;color:var(--gray-900)}.pay-milestone__due{font-size:12px;color:var(--gray-400);margin-top:2px}.pay-milestone__amount{font-size:16px;font-weight:700;color:var(--gray-900);margin-right:8px}.pay-milestone__status-paid{font-size:12px;font-weight:600;color:var(--green);background:var(--green-light);padding:3px 10px;border-radius:20px}.pay-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;background:var(--purple);color:#fff;border:none;border-radius:var(--radius-sm);font-size:13px;font-weight:600;cursor:pointer;transition:background .15s,opacity .15s;white-space:nowrap}.pay-btn:hover{background:#3d5ce0}.pay-btn:disabled{opacity:.5;cursor:not-allowed}.pay-progress{margin-top:16px}.pay-progress__bar{height:6px;background:var(--gray-100);border-radius:99px;overflow:hidden}.pay-progress__fill{height:100%;background:var(--purple);border-radius:99px;transition:width .4s}.pay-progress__text{font-size:12px;color:var(--gray-400);margin-top:6px;display:flex;justify-content:space-between}.checkout-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100;padding:16px}.checkout-modal{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;position:relative}.checkout-modal__header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--gray-100)}.checkout-modal__title{font-size:15px;font-weight:600;color:var(--gray-900)}.checkout-modal__close{background:none;border:none;cursor:pointer;color:var(--gray-400);font-size:20px;line-height:1;padding:4px;border-radius:6px;transition:color .12s}.checkout-modal__close:hover{color:var(--gray-900)}.checkout-modal__body{padding:20px}.pay-footer{margin-top:24px;text-align:center;font-size:12px;color:var(--gray-400)}.pay-footer a{color:var(--gray-400);text-decoration:none}.pay-footer a:hover{text-decoration:underline}.pay-status{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:20px}.pay-status--paid{background:var(--green-light);color:var(--green)}.pay-status--partial{background:var(--amber-light);color:var(--amber)}.pay-status--open{background:var(--purple-light);color:var(--purple)}.pay-success{text-align:center;padding:48px 32px}.pay-success__icon{width:64px;height:64px;border-radius:50%;background:var(--green-light);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:28px}.pay-success__title{font-size:22px;font-weight:700;color:var(--gray-900);margin-bottom:8px}.pay-success__sub{font-size:14px;color:var(--gray-500);line-height:1.6}.pay-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;gap:12px;color:var(--gray-400);font-size:14px}.pay-spinner{width:28px;height:28px;border:3px solid var(--gray-200);border-top-color:var(--purple);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.pay-error{padding:32px;text-align:center;color:#dc2626;font-size:14px}@media (max-width:480px){.pay-body,.pay-header{padding:20px}.pay-summary{flex-direction:column;gap:8px}.pay-summary__total{text-align:left}}