.payment-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 0 0 14px;
}

.payment-back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.82);
    font: inherit;
    font-size: 13px;
    font-weight: 650;
    cursor: pointer;
    transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

.payment-bottom-back {
    display: none !important;
}

.payment-topbar-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: rgba(255, 255, 255, 0.42);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.rocket-guide {
    margin: 16px 0;
    padding: 18px;
    border: 1px solid rgba(52, 211, 153, 0.16);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(16, 34, 33, 0.76), rgba(8, 18, 22, 0.78));
}

.rocket-guide-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.rocket-guide-kicker {
    margin-bottom: 4px;
    color: #6ee7b7;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.rocket-guide-title {
    color: rgba(255, 255, 255, 0.92);
    font-size: 16px;
    font-weight: 720;
}

.rocket-guide-badge {
    flex-shrink: 0;
    padding: 5px 9px;
    border-radius: 999px;
    background: rgba(52, 211, 153, 0.1);
    color: #86efac;
    font-size: 10px;
    font-weight: 700;
}

.rocket-guide-steps {
    display: grid;
    gap: 9px;
    margin: 0 0 14px;
    padding: 0;
    list-style: none;
}

.rocket-guide-step {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    align-items: start;
    gap: 9px;
    color: rgba(255, 255, 255, 0.58);
    font-size: 12px;
    line-height: 1.5;
}

.rocket-guide-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    background: rgba(52, 211, 153, 0.1);
    color: #86efac;
    font-size: 11px;
    font-weight: 750;
}

.rocket-guide-open {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 44px;
    padding: 0 14px;
    border: 1px solid rgba(52, 211, 153, 0.22);
    border-radius: 14px;
    background: rgba(52, 211, 153, 0.1);
    color: #a7f3d0;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

@media (hover: hover) and (pointer: fine) {
    .payment-back:hover,
    .rocket-guide-open:hover {
        border-color: rgba(52, 211, 153, 0.34);
        background: rgba(52, 211, 153, 0.13);
        transform: translateY(-1px);
    }
}

@media (max-width: 360px) {
    .payment-topbar {
        gap: 8px;
    }

    .payment-back {
        padding: 0 12px;
    }

    .rocket-guide {
        padding: 16px;
    }

    .rocket-guide-title {
        font-size: 15px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .payment-back,
    .rocket-guide-open {
        transition-duration: 0.01ms;
    }
}