:root{--qb-primary:#2563EB;--qb-primary-dark:#1D4ED8;--qb-primary-light:#EFF6FF;--qb-black:#0F172A;--qb-dark:#1E293B;--qb-gray-900:#0F172A;--qb-gray-700:#374151;--qb-gray-500:#6B7280;--qb-gray-300:#D1D5DB;--qb-gray-100:#F3F4F6;--qb-white:#FFFFFF;--qb-success:#16A34A;--qb-error:#DC2626;--qb-warning:#D97706;--qb-radius:12px;--qb-radius-sm:8px;--qb-shadow:0 4px 24px rgba(0, 0, 0, 0.08);--qb-shadow-hover:0 8px 32px rgba(37, 99, 235, 0.15);--qb-transition:0.2s ease}.qb-checkout *,.qb-checkout *::before,.qb-checkout *::after{box-sizing:border-box}.qb-checkout{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Inter',sans-serif;color:var(--qb-gray-700);max-width:1100px;margin:32px auto;padding:0 16px;-webkit-font-smoothing:antialiased}.qb-steps{display:flex;align-items:center;justify-content:center;gap:0;margin-bottom:40px;padding:0 20px}.qb-step{display:flex;flex-direction:column;align-items:center;gap:8px;position:relative}.qb-step__dot{width:40px;height:40px;border-radius:50%;background:var(--qb-gray-100);color:var(--qb-gray-500);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;border:2px solid var(--qb-gray-300);transition:all var(--qb-transition);position:relative;z-index:2}.qb-step span{font-size:12px;font-weight:500;color:var(--qb-gray-500);white-space:nowrap;transition:color var(--qb-transition)}.qb-step.active .qb-step__dot{background:var(--qb-primary);color:var(--qb-white);border-color:var(--qb-primary);box-shadow:0 0 0 4px rgb(37 99 235 / .2)}.qb-step.active span{color:var(--qb-primary);font-weight:600}.qb-step.completed .qb-step__dot{background:var(--qb-success);border-color:var(--qb-success);color:var(--qb-white)}.qb-step__line{flex:1;height:2px;background:var(--qb-gray-300);min-width:60px;max-width:120px;margin-bottom:26px;transition:background var(--qb-transition)}.qb-step__line.active{background:var(--qb-primary)}.qb-checkout__layout{display:grid;grid-template-columns:1fr 340px;gap:28px;align-items:start}@media (max-width:900px){.qb-checkout__layout{grid-template-columns:1fr}.qb-checkout__sidebar{order:-1}}.qb-panel{display:none;background:var(--qb-white);border-radius:var(--qb-radius);box-shadow:var(--qb-shadow);padding:36px;animation:qb-fadein 0.3s ease forwards}.qb-panel.active{display:block}@keyframes qb-fadein{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.qb-panel__header{margin-bottom:28px;border-bottom:1px solid var(--qb-gray-100);padding-bottom:20px}.qb-panel__header h2{font-size:22px;font-weight:700;color:var(--qb-black);margin:0 0 6px}.qb-panel__header p{font-size:14px;color:var(--qb-gray-500);margin:0}.qb-panel__footer{margin-top:28px;display:flex;justify-content:flex-end;gap:12px;align-items:center;border-top:1px solid var(--qb-gray-100);padding-top:24px}.qb-services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.qb-service-card{border:2px solid var(--qb-gray-300);border-radius:var(--qb-radius);padding:20px;cursor:pointer;transition:all var(--qb-transition);position:relative;user-select:none;background:var(--qb-white)}.qb-service-card:hover{border-color:var(--qb-primary);box-shadow:var(--qb-shadow-hover);transform:translateY(-2px)}.qb-service-card.selected{border-color:var(--qb-primary);background:var(--qb-primary-light);box-shadow:var(--qb-shadow-hover)}.qb-service-card input[type="checkbox"]{position:absolute;top:16px;right:16px;width:20px;height:20px;accent-color:var(--qb-primary);cursor:pointer}.qb-service-card__name{font-size:16px;font-weight:700;color:var(--qb-black);margin:0 0 6px;padding-right:30px}.qb-service-card__desc{font-size:13px;color:var(--qb-gray-500);margin:0 0 14px;line-height:1.5}.qb-service-card__price{font-size:20px;font-weight:800;color:var(--qb-primary)}.qb-service-card__price span{font-size:13px;font-weight:400;color:var(--qb-gray-500)}.qb-loading{grid-column:1 / -1;display:flex;align-items:center;gap:10px;color:var(--qb-gray-500);padding:20px 0}.qb-spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--qb-gray-300);border-top-color:var(--qb-primary);border-radius:50%;animation:qb-spin 0.7s linear infinite;flex-shrink:0}@keyframes qb-spin{to{transform:rotate(360deg)}}.qb-form{display:flex;flex-direction:column;gap:20px}.qb-form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width:600px){.qb-form__row{grid-template-columns:1fr}}.qb-form__field{display:flex;flex-direction:column;gap:6px}.qb-form__field label{font-size:13px;font-weight:600;color:var(--qb-gray-700)}.qb-required{color:var(--qb-error)}.qb-form__field input{height:46px;border:2px solid var(--qb-gray-300);border-radius:var(--qb-radius-sm);padding:0 14px;font-size:14px;color:var(--qb-black);background:var(--qb-white);transition:border-color var(--qb-transition),box-shadow var(--qb-transition);outline:none;width:100%}.qb-form__field input:focus{border-color:var(--qb-primary);box-shadow:0 0 0 3px rgb(37 99 235 / .15)}.qb-form__field input.error{border-color:var(--qb-error)}.qb-field-error{font-size:12px;color:var(--qb-error);min-height:16px}.qb-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:var(--qb-radius-sm);font-size:14px;font-weight:600;cursor:pointer;border:2px solid #fff0;transition:all var(--qb-transition);text-decoration:none;white-space:nowrap}.qb-btn--primary{background:var(--qb-primary);color:var(--qb-white);border-color:var(--qb-primary)}.qb-btn--primary:hover:not(:disabled){background:var(--qb-primary-dark);border-color:var(--qb-primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgb(37 99 235 / .3)}.qb-btn--ghost{background:#fff0;color:var(--qb-gray-700);border-color:var(--qb-gray-300)}.qb-btn--ghost:hover:not(:disabled){border-color:var(--qb-gray-700);background:var(--qb-gray-100)}.qb-btn--pay{background:var(--qb-black);color:var(--qb-white);border-color:var(--qb-black);padding:14px 32px;font-size:15px}.qb-btn--pay:hover:not(:disabled){background:var(--qb-dark);transform:translateY(-1px);box-shadow:0 4px 16px rgb(0 0 0 / .3)}.qb-btn:disabled{opacity:.55;cursor:not-allowed;transform:none!important}.qb-notice{font-size:13px;padding:10px 14px;border-radius:var(--qb-radius-sm);flex:1}.qb-notice--error{background:#FEF2F2;color:var(--qb-error);border:1px solid #FECACA}.qb-notice--success{background:#F0FDF4;color:var(--qb-success);border:1px solid #BBF7D0}.qb-payment-info{display:flex;flex-direction:column;gap:20px}.qb-payment-info__secure{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--qb-success);font-weight:500;background:#F0FDF4;padding:8px 14px;border-radius:999px;width:fit-content}.qb-payment-summary{background:var(--qb-gray-100);border-radius:var(--qb-radius-sm);padding:16px 20px}.qb-payment-summary__item{display:flex;justify-content:space-between;font-size:14px;padding:6px 0;color:var(--qb-gray-700)}.qb-payment-summary__total{display:flex;justify-content:space-between;font-size:16px;font-weight:700;color:var(--qb-black);padding:10px 0 0;margin-top:8px;border-top:1px solid var(--qb-gray-300)}.qb-stripe-badge{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--qb-gray-500)}.qb-checkout__sidebar{position:sticky;top:24px}.qb-summary{background:var(--qb-black);color:var(--qb-white);border-radius:var(--qb-radius);padding:28px;box-shadow:var(--qb-shadow)}.qb-summary__header h3{margin:0 0 20px;font-size:16px;font-weight:700;color:var(--qb-white);letter-spacing:.5px;text-transform:uppercase}.qb-summary__items{display:flex;flex-direction:column;gap:12px;min-height:60px}.qb-summary__empty{font-size:13px;color:rgb(255 255 255 / .4);margin:0;text-align:center;padding:16px 0}.qb-summary__item{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;font-size:14px;animation:qb-fadein 0.2s ease forwards}.qb-summary__item-name{color:rgb(255 255 255 / .85);flex:1}.qb-summary__item-price{color:var(--qb-white);font-weight:600;white-space:nowrap}.qb-summary__divider{height:1px;background:rgb(255 255 255 / .12);margin:20px 0}.qb-summary__total{display:flex;justify-content:space-between;align-items:center;font-size:18px;font-weight:800}.qb-summary__total span:first-child{color:rgb(255 255 255 / .7);font-size:14px;font-weight:400;text-transform:uppercase;letter-spacing:.5px}.qb-summary__trust{margin-top:24px;display:flex;flex-direction:column;gap:8px}.qb-trust-item{display:flex;align-items:center;gap:8px;font-size:12px;color:rgb(255 255 255 / .45)}.qb-badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.qb-badge--active,.qb-badge--paid{background:#D1FAE5;color:#065F46}.qb-badge--inactive,.qb-badge--pending{background:#FEF3C7;color:#92400E}.qb-badge--failed{background:#FEE2E2;color:#991B1B}.qb-card{background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:24px;margin-top:0}@media (max-width:768px){.qb-panel{padding:24px 18px}.qb-steps{padding:0}.qb-step__line{min-width:30px}}