:root {
    --payment-ink: #24252a;
    --payment-paper: #f4f5f2;
    --payment-white: #ffffff;
    --payment-teal: #08b9c6;
    --payment-gold: #f8ca73;
    --payment-muted: #687078;
    --payment-line: rgba(36, 37, 42, 0.14);
}

body.payment-modal-open {
    overflow: hidden;
}

body.payment-modal-open > header,
body.payment-modal-open > main,
body.payment-modal-open > footer {
    filter: blur(7px);
    pointer-events: none;
    user-select: none;
}

.payment-modal[hidden] {
    display: none;
}

.payment-modal {
    position: fixed;
    z-index: 1000;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 24px;
}

.payment-modal__backdrop {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    background: rgba(20, 22, 27, 0.64);
    border: 0;
    cursor: default;
    backdrop-filter: blur(2px);
}

.payment-modal__dialog {
    position: relative;
    display: flex;
    width: min(880px, 100%);
    max-height: min(760px, calc(100vh - 48px));
    overflow: hidden;
    flex-direction: column;
    color: var(--payment-ink);
    background: var(--payment-paper);
    border: 0;
    border-radius: 30px;
    box-shadow: 0 34px 110px rgba(12, 15, 20, 0.36);
    animation: payment-modal-enter 0.24s ease-out;
}

.payment-modal__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    padding: 30px 32px 27px;
    color: var(--payment-white);
    background: var(--payment-ink);
}

.payment-modal__header p {
    margin: 0 0 8px;
    color: var(--payment-teal);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.payment-modal__header h2 {
    margin: 0;
    font-family: Montserrat-Bold, Montserrat-Alternates-Bold, sans-serif;
    font-size: clamp(27px, 5vw, 42px);
    line-height: 1.04;
    letter-spacing: -0.035em;
}

.payment-modal__header > div > span {
    display: block;
    max-width: 660px;
    margin-top: 13px;
    color: rgba(255, 255, 255, 0.66);
    font-size: 14px;
    line-height: 1.5;
}

.payment-modal__close {
    position: relative;
    width: 46px;
    min-width: 46px;
    height: 46px;
    padding: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 14px;
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease;
}

.payment-modal__close:hover,
.payment-modal__close:focus-visible {
    background: rgba(248, 202, 115, 0.14);
    border-color: rgba(248, 202, 115, 0.5);
}

.payment-modal__close span::before,
.payment-modal__close span::after {
    position: absolute;
    top: 21px;
    left: 13px;
    width: 20px;
    height: 2px;
    content: "";
    background: var(--payment-white);
    border-radius: 2px;
}

.payment-modal__close span::before {
    transform: rotate(45deg);
}

.payment-modal__close span::after {
    transform: rotate(-45deg);
}

.payment-modal__body {
    min-height: 190px;
    padding: 27px 32px;
    overflow-y: auto;
    scrollbar-color: rgba(36, 37, 42, 0.25) transparent;
}

.payment-modal__loading {
    display: flex;
    min-height: 140px;
    align-items: center;
    justify-content: center;
    gap: 13px;
    color: var(--payment-muted);
    font-weight: 750;
}

.payment-modal__loading[hidden] {
    display: none;
}

.payment-modal__loading i {
    width: 22px;
    height: 22px;
    border: 3px solid rgba(8, 185, 198, 0.2);
    border-top-color: var(--payment-teal);
    border-radius: 50%;
    animation: payment-modal-spin 0.75s linear infinite;
}

.payment-modal__message {
    padding: 17px 18px;
    color: #8f3232;
    background: #fff3f3;
    border: 1px solid rgba(192, 61, 61, 0.25);
    border-radius: 14px;
    line-height: 1.5;
}

.payment-modal__message--neutral {
    color: var(--payment-muted);
    background: var(--payment-white);
    border-color: var(--payment-line);
}

.payment-modal__months {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
}

.payment-modal__months[hidden] {
    display: none;
}

.payment-month {
    position: relative;
    min-height: 128px;
    padding: 18px;
    text-align: left;
    color: var(--payment-ink);
    background: var(--payment-white);
    border: 1px solid var(--payment-line);
    border-radius: 18px;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.payment-month:hover {
    border-color: rgba(8, 185, 198, 0.5);
    transform: translateY(-2px);
}

.payment-month:focus-visible {
    outline: 3px solid rgba(8, 185, 198, 0.24);
    outline-offset: 2px;
}

.payment-month[aria-pressed="true"] {
    background: #f0fbfb;
    border-color: var(--payment-teal);
    box-shadow: inset 0 0 0 1px rgba(8, 185, 198, 0.4);
}

.payment-month__check {
    position: absolute;
    top: 15px;
    right: 15px;
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    color: transparent;
    background: var(--payment-paper);
    border: 1px solid var(--payment-line);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 900;
}

.payment-month[aria-pressed="true"] .payment-month__check {
    color: #063f3a;
    background: #91e0c2;
    border-color: transparent;
}

.payment-month small {
    display: block;
    padding-right: 32px;
    color: var(--payment-muted);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.payment-month strong {
    display: block;
    margin-top: 12px;
    font-family: Montserrat-Bold, Montserrat-Alternates-Bold, sans-serif;
    font-size: 18px;
    line-height: 1.2;
}

.payment-month span:last-child {
    display: block;
    margin-top: 12px;
    color: #116c73;
    font-size: 15px;
    font-weight: 900;
}

.payment-modal__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    padding: 21px 32px 24px;
    background: var(--payment-white);
    border-top: 1px solid var(--payment-line);
}

.payment-modal__selection span {
    display: block;
    color: var(--payment-muted);
    font-size: 9px;
    font-weight: 900;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.payment-modal__selection strong {
    display: block;
    margin-top: 5px;
    font-size: 16px;
}

.payment-modal__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.payment-modal__cart {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 13px;
    padding: 0 20px;
    color: var(--payment-ink);
    background: var(--payment-gold);
    border: 0;
    border-radius: 14px;
    font-size: 13px;
    font-weight: 900;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}

.payment-modal__cart:hover {
    transform: translateY(-2px);
}

.payment-modal__cart {
    color: var(--payment-white);
    background: var(--payment-ink);
}

.payment-modal__cart[aria-disabled="true"] {
    opacity: 0.42;
    pointer-events: none;
    cursor: default;
    transform: none;
}

@keyframes payment-modal-enter {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.98);
    }
}

@keyframes payment-modal-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 720px) {
    .payment-modal {
        padding: 12px;
    }

    .payment-modal__dialog {
        max-height: calc(100vh - 24px);
        border-radius: 22px;
    }

    .payment-modal__header,
    .payment-modal__body,
    .payment-modal__footer {
        padding-right: 20px;
        padding-left: 20px;
    }

    .payment-modal__months {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .payment-modal__footer {
        align-items: stretch;
        flex-direction: column;
    }

    .payment-modal__actions,
    .payment-modal__cart {
        width: 100%;
    }
}

@media (max-width: 430px) {
    .payment-modal__months {
        grid-template-columns: 1fr;
    }

    .payment-modal__actions {
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    .payment-modal__dialog,
    .payment-modal__loading i {
        animation: none;
    }

    .payment-month,
    .payment-modal__cart {
        transition: none;
    }
}