.checkout-loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.74);
    backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, visibility 0.18s ease;
}

.checkout-loading-overlay.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.checkout-loading-card {
    min-width: min(420px, 100%);
    max-width: 420px;
    padding: 1.35rem 1.5rem;
    border-radius: 1.2rem;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(154, 102, 127, 0.16);
    box-shadow: 0 20px 40px rgba(120, 88, 101, 0.18);
    text-align: center;
}

.checkout-loading-spinner {
    width: 56px;
    height: 56px;
    margin: 0 auto 1rem;
    border-radius: 999px;
    border: 4px solid rgba(215, 203, 255, 0.58);
    border-top-color: #9a667f;
    animation: checkout-loading-spin 0.82s linear infinite;
}

.checkout-loading-title {
    margin: 0 0 0.35rem;
    color: #443948;
    font-size: 1.4rem;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.checkout-loading-copy {
    margin: 0;
    color: #6d6170;
    font-size: 0.98rem;
    line-height: 1.55;
}

@keyframes checkout-loading-spin {
    to {
        transform: rotate(360deg);
    }
}