:root {
        --primary: #FF4B1F;
        --primary-hover: #FF6A2A;
        --black: #111111;
        --white: #FFFFFF;
        --font: Inter, Arial, Helvetica, sans-serif;
        --ease: all 0.2s ease;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html,
    body {
        min-height: 100%;
        font-family: var(--font);
        background: var(--black);
        color: var(--white);
    }

    /* ── header ── */
    header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(17, 17, 17, .97);
        backdrop-filter: blur(8px);
        border-bottom: 1px solid rgba(255, 255, 255, .07);
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 48px;
    }

    .logo a {
        display: flex;
        align-items: center;
        text-decoration: none;
    }

    .logo img {
        height: 26px;
        width: auto;
        display: block;
    }

    .header-right {
        display: flex;
        align-items: center;
        gap: 14px;
    }

    .header-divider {
        width: 1px;
        height: 20px;
        background: rgba(255, 255, 255, .15);
    }

    .partner-label {
        font-size: 10px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: .8px;
        color: rgba(255, 255, 255, .3);
        white-space: nowrap;
    }

    .tray-logo img {
        height: 35px;
        width: auto;
        display: block;
    }

    /* ── layout ── */
    .checkout-wrap {
        max-width: 1080px;
        margin: 0 auto;
        padding: 48px 24px 80px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 48px;
        align-items: start;
    }

    /* ── LEFT: order summary ── */
    .checkout-summary {
        position: sticky;
        top: 88px;
    }

    .summary-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 75, 31, .12);
        border: 1px solid rgba(255, 75, 31, .35);
        color: var(--primary);
        padding: 5px 14px;
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 20px;
    }

    .summary-badge-dot {
        width: 6px;
        height: 6px;
        background: var(--primary);
        border-radius: 50%;
        animation: pulse 2s ease-in-out infinite;
    }

    @keyframes pulse {

        0%,
        100% {
            opacity: 1;
        }

        50% {
            opacity: .4;
        }
    }

    .summary-title {
        font-size: 22px;
        font-weight: 700;
        color: var(--white);
        line-height: 1.3;
        margin-bottom: 24px;
    }

    .summary-title em {
        font-style: normal;
        color: var(--primary);
    }

    .summary-price {
        background: rgba(255, 255, 255, .04);
        border: 1px solid rgba(255, 255, 255, .08);
        border-left: 3px solid var(--primary);
        padding: 20px 24px;
        margin-bottom: 24px;
    }

    .price-label {
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: rgba(255, 255, 255, .4);
        margin-bottom: 10px;
    }

    .price-amount {
        display: flex;
        align-items: baseline;
        gap: 3px;
        margin-bottom: 10px;
    }

    .cur {
        font-size: 17px;
        font-weight: 700;
    }

    .val {
        font-size: 44px;
        line-height: 1;
        font-weight: 700;
    }

    .cents {
        font-size: 20px;
        font-weight: 700;
        align-self: flex-start;
        margin-top: 7px;
    }

    .period {
        font-size: 14px;
        color: rgba(255, 255, 255, .4);
        margin-left: 4px;
    }

    .price-note {
        display: flex;
        align-items: center;
        gap: 7px;
        font-size: 12px;
        color: rgba(255, 255, 255, .45);
    }

    .price-note svg {
        color: var(--primary);
        flex-shrink: 0;
    }

    .summary-features {
        list-style: none;
        padding: 0;
        margin: 0 0 24px;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .summary-features li {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        font-size: 13px;
        color: rgba(255, 255, 255, .7);
        line-height: 1.5;
    }

    .summary-features li svg {
        color: var(--primary);
        flex-shrink: 0;
        margin-top: 2px;
    }

    .summary-security {
        display: flex;
        align-items: center;
        gap: 10px;
        background: rgba(255, 255, 255, .03);
        border: 1px solid rgba(255, 255, 255, .07);
        padding: 12px 16px;
        font-size: 12px;
        color: rgba(255, 255, 255, .4);
    }

    .summary-security svg {
        color: rgba(255, 255, 255, .3);
        flex-shrink: 0;
    }

    /* ── RIGHT: form card ── */
    .checkout-card {
        background: rgba(255, 255, 255, .03);
        border: 1px solid rgba(255, 255, 255, .08);
    }

    .checkout-card::before {
        content: '';
        display: block;
        height: 3px;
        background: var(--primary);
    }

    .checkout-card-inner {
        padding: 32px;
    }

    /* ── PF / PJ toggle ── */
    .type-toggle {
        display: grid;
        grid-template-columns: 1fr 1fr;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .10);
        padding: 4px;
        margin-bottom: 28px;
        gap: 4px;
    }

    .type-btn {
        padding: 11px 8px;
        background: transparent;
        border: none;
        color: rgba(255, 255, 255, .4);
        font-family: var(--font);
        font-size: 13px;
        font-weight: 700;
        cursor: pointer;
        transition: var(--ease);
        letter-spacing: .3px;
    }

    .type-btn:hover {
        color: rgba(255, 255, 255, .7);
    }

    .type-btn.active {
        background: var(--primary);
        color: var(--white);
    }

    /* ── form sections ── */
    .form-section-title {
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 1px;
        color: rgba(255, 255, 255, .4);
        padding-left: 12px;
        border-left: 2px solid var(--primary);
        margin-bottom: 20px;
    }

    .form-section+.form-section {
        margin-top: 28px;
    }

    .field {
        margin-bottom: 16px;
    }

    .field label {
        display: block;
        font-size: 12px;
        font-weight: 700;
        color: rgba(255, 255, 255, .5);
        margin-bottom: 6px;
        text-transform: uppercase;
        letter-spacing: .4px;
    }

    .field input[type="text"],
    .field input[type="email"] {
        width: 100%;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .10);
        color: var(--white);
        padding: 13px 16px;
        font-family: var(--font);
        font-size: 14px;
        outline: none;
        transition: border-color 0.18s, background 0.18s;
        -webkit-appearance: none;
    }

    .field input[type="text"]:focus,
    .field input[type="email"]:focus {
        border-color: rgba(255, 75, 31, .55);
        background: rgba(255, 255, 255, .07);
    }

    .field input::placeholder {
        color: rgba(255, 255, 255, .22);
    }

    .field-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .field-row-3 {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 12px;
    }

    .card-field-wrap {
        position: relative;
    }

    .card-field-wrap input {
        padding-right: 52px;
        letter-spacing: .5px;
    }

    .card-brand-icon {
        position: absolute;
        right: 14px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 11px;
        font-weight: 700;
        color: rgba(255, 255, 255, .35);
        pointer-events: none;
        letter-spacing: .5px;
    }

    /* ── checkbox ── */
    .field-checkbox {
        margin-top: 20px;
        margin-bottom: 0;
    }

    .checkbox-wrap {
        display: flex;
        align-items: flex-start;
        gap: 10px;
        cursor: pointer;
        user-select: none;
    }

    .checkbox-wrap input[type="checkbox"] {
        width: 16px;
        height: 16px;
        flex-shrink: 0;
        margin-top: 2px;
        accent-color: var(--primary);
        cursor: pointer;
    }

    .checkbox-text {
        font-size: 12px;
        color: rgba(255, 255, 255, .5);
        line-height: 1.7;
    }

    .checkbox-text a {
        color: rgba(255, 255, 255, .75);
        text-decoration: underline;
        text-underline-offset: 2px;
        transition: var(--ease);
    }

    .checkbox-text a:hover {
        color: var(--primary);
    }

    /* ── submit ── */
    .btn-submit {
        width: 100%;
        background: var(--primary);
        color: var(--white);
        border: none;
        padding: 16px 28px;
        font-family: var(--font);
        font-size: 15px;
        font-weight: 700;
        cursor: pointer;
        transition: background 0.2s;
        margin-top: 20px;
        letter-spacing: .3px;
    }

    .btn-submit:hover:not(:disabled) {
        background: var(--primary-hover);
    }

    .btn-submit:disabled {
        opacity: .6;
        cursor: not-allowed;
    }

    /* ── feedback ── */
    .feedback {
        margin-top: 14px;
        padding: 13px 16px;
        font-size: 13px;
        font-weight: 700;
        display: none;
    }

    .feedback.visible {
        display: block;
    }

    .feedback.error {
        background: rgba(220, 60, 60, .1);
        border: 1px solid rgba(220, 60, 60, .3);
        color: #f87171;
    }

    .feedback.success {
        background: rgba(34, 197, 94, .1);
        border: 1px solid rgba(34, 197, 94, .3);
        color: #4ade80;
    }

    .form-footer-note {
        margin-top: 14px;
        font-size: 11px;
        color: rgba(255, 255, 255, .22);
        text-align: center;
        line-height: 1.6;
    }

    /* ── reinstall notice ── */
    .reinstall-notice {
        display: none;
        align-items: flex-start;
        gap: 10px;
        background: rgba(255, 75, 31, .08);
        border: 1px solid rgba(255, 75, 31, .25);
        border-left: 3px solid var(--primary);
        padding: 14px 16px;
        margin-bottom: 24px;
        font-size: 13px;
        line-height: 1.5;
        color: rgba(255, 255, 255, .75);
    }

    .reinstall-notice.visible {
        display: flex;
    }

    .reinstall-notice svg {
        color: var(--primary);
        flex-shrink: 0;
        margin-top: 1px;
    }

    /* ── store verified banner ── */
    .store-verified {
        background: rgba(34, 197, 94, .07);
        border: 1px solid rgba(34, 197, 94, .2);
        border-left: 3px solid #4ade80;
        padding: 14px 16px;
        margin-bottom: 24px;
    }

    .store-verified-row {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 10px;
    }

    .store-verified-check {
        width: 30px;
        height: 30px;
        background: rgba(34, 197, 94, .15);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        color: #4ade80;
    }

    .store-verified-title {
        font-size: 11px;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: .8px;
        color: #4ade80;
        margin-bottom: 3px;
    }

    .store-verified-url {
        font-size: 12px;
        color: rgba(255, 255, 255, .6);
        word-break: break-all;
    }

    .store-verified-tags {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
    }

    .store-tag {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 10px;
        font-weight: 700;
        color: #4ade80;
        background: rgba(34, 197, 94, .1);
        border: 1px solid rgba(34, 197, 94, .2);
        padding: 3px 8px;
        letter-spacing: .3px;
    }

    /* ── store url view ── */
    .checkout-support {
        display: none;
    }

    .checkout-support.visible {
        display: block;
    }

    .support-state-icon {
        width: 48px;
        height: 48px;
        background: rgba(255, 75, 31, .1);
        border: 1px solid rgba(255, 75, 31, .3);
        border-radius: 50%;
        align-items: center;
        justify-content: center;
    }

    .support-state-icon svg {
        color: var(--primary);
    }

    .url-input-wrap {
        display: flex;
        align-items: center;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .10);
        transition: border-color .18s, background .18s;
    }

    .url-input-wrap:focus-within {
        border-color: rgba(255, 75, 31, .55);
        background: rgba(255, 255, 255, .07);
    }

    .url-prefix {
        padding: 13px 0 13px 16px;
        font-size: 14px;
        color: rgba(255, 255, 255, .35);
        font-family: var(--font);
        white-space: nowrap;
        user-select: none;
        pointer-events: none;
    }

    .url-input-wrap input {
        flex: 1;
        background: transparent !important;
        border: none !important;
        outline: none;
        color: var(--white);
        padding: 13px 16px 13px 4px;
        font-family: var(--font);
        font-size: 14px;
        -webkit-appearance: none;
        min-width: 0;
    }

    .url-input-wrap input::placeholder {
        color: rgba(255, 255, 255, .22);
    }

    .store-url-msg {
        font-size: 12px;
        font-weight: 700;
        min-height: 18px;
        margin-bottom: 8px;
    }

    .store-url-msg.error {
        color: #f87171;
    }

    .store-url-msg.info {
        color: rgba(255, 255, 255, .45);
    }

    .btn-support-store {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        background: transparent;
        border: 1px solid rgba(255, 255, 255, .12);
        color: rgba(255, 255, 255, .6);
        padding: 12px;
        font-family: var(--font);
        font-size: 13px;
        font-weight: 700;
        text-decoration: none;
        margin-bottom: 10px;
        transition: border-color .2s, color .2s;
    }

    .btn-support-store:hover {
        border-color: var(--primary);
        color: var(--primary);
    }

    .store-url-support {
        display: flex;
        align-items: center;
        gap: 6px;
        margin-top: 16px;
        font-size: 12px;
        color: rgba(255, 255, 255, .35);
        text-decoration: none;
        transition: color .2s;
    }

    .store-url-support:hover {
        color: var(--primary);
    }

    /* ── success state ── */
    .checkout-success {
        display: none;
        padding: 48px 32px;
        text-align: center;
    }

    .checkout-success.visible {
        display: block;
    }

    .success-icon {
        width: 56px;
        height: 56px;
        background: rgba(34, 197, 94, .12);
        border: 1px solid rgba(34, 197, 94, .3);
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 20px;
    }

    .success-icon svg {
        color: #4ade80;
    }

    .success-title {
        font-size: 20px;
        font-weight: 700;
        margin-bottom: 10px;
    }

    .success-sub {
        font-size: 14px;
        color: rgba(255, 255, 255, .55);
        line-height: 1.6;
        margin-bottom: 28px;
    }

    .btn-success {
        display: inline-block;
        background: var(--primary);
        color: var(--white);
        padding: 14px 28px;
        font-family: var(--font);
        font-size: 14px;
        font-weight: 700;
        text-decoration: none;
        transition: background 0.2s;
    }

    .btn-success:hover {
        background: var(--primary-hover);
    }

    .success-tx-id {
        font-size: 12px;
        color: rgba(255, 255, 255, .35);
        margin-bottom: 24px;
        font-family: monospace;
        letter-spacing: .5px;
    }

    .success-tx-id strong {
        color: rgba(255, 255, 255, .6);
    }

    .success-countdown {
        font-size: 13px;
        color: rgba(255, 255, 255, .4);
        margin-bottom: 20px;
    }

    .success-countdown strong {
        color: var(--primary);
        font-size: 15px;
    }

    /* ── footer ── */
    footer {
        border-top: 1px solid rgba(255, 255, 255, .07);
        padding: 16px 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
    }

    .footer-links {
        display: flex;
        align-items: center;
        gap: 24px;
    }

    .footer-link {
        font-size: 12px;
        color: rgba(255, 255, 255, .4);
        text-decoration: none;
        transition: var(--ease);
        white-space: nowrap;
    }

    .footer-link:hover {
        color: var(--primary);
    }

    .footer-link.support {
        display: flex;
        align-items: center;
        gap: 6px;
        color: rgba(255, 255, 255, .55);
        font-weight: 700;
    }

    .footer-link.support:hover {
        color: var(--primary);
    }

    .footer-copy {
        font-size: 11px;
        color: rgba(255, 255, 255, .2);
    }

    /* ── responsive ── */
    @media (max-width: 860px) {
        header {
            padding: 14px 20px;
        }

        .partner-label,
        .header-divider {
            display: none;
        }

        .checkout-wrap {
            grid-template-columns: 1fr;
            padding: 28px 20px 60px;
            gap: 32px;
        }

        .checkout-summary {
            position: static;
        }

        .checkout-card-inner {
            padding: 24px 20px;
        }

        footer {
            padding: 16px 20px;
            flex-direction: column;
            align-items: flex-start;
            gap: 12px;
        }

        .footer-links {
            flex-wrap: wrap;
            gap: 16px;
        }
    }

    @media (max-width: 480px) {
        .field-row {
            grid-template-columns: 1fr;
        }

        .field-row-3 {
            grid-template-columns: 1fr 1fr;
        }

        .field-row-3 .field:last-child {
            grid-column: span 2;
        }
    }