.andala-checkout-modal {
    position: fixed;
    inset: 0;
    z-index: 10050;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.andala-checkout-modal.is-open {
    display: flex;
}

.andala-checkout-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(11, 18, 32, 0.55);
    backdrop-filter: blur(4px);
}

.andala-checkout-panel {
    position: relative;
    width: min(100%, 440px);
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    background: var(--andala-surface, #fff);
    border-radius: 18px;
    box-shadow: var(--andala-shadow-lg, 0 32px 80px rgba(11, 18, 32, 0.12));
    padding: 1.5rem;
    animation: andalaCheckoutIn 0.25s ease;
}

@keyframes andalaCheckoutIn {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.andala-checkout-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    border: 0;
    background: transparent;
    font-size: 1.5rem;
    line-height: 1;
    color: var(--andala-muted, #8b93a7);
    cursor: pointer;
}

.andala-checkout-header {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1.25rem;
}

.andala-checkout-header h2 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--andala-ink, #0b1220);
}

.andala-checkout-header p {
    margin: 0.15rem 0 0;
    font-size: 0.85rem;
    color: var(--andala-slate, #5b6478);
}

.andala-checkout-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    background: var(--andala-bg, #f7f9fc);
    border: 1px solid var(--andala-border, #e4e8ef);
    margin-bottom: 1rem;
}

.andala-checkout-summary .label {
    display: block;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--andala-muted, #8b93a7);
    margin-bottom: 0.2rem;
}

.andala-checkout-summary strong {
    font-size: 0.95rem;
    color: var(--andala-ink, #0b1220);
    word-break: break-word;
}

.andala-checkout-summary strong#andala-checkout-amount {
    color: var(--andala-emerald, #059669);
    font-size: 1.05rem;
}

.andala-checkout-footnote {
    margin: 1rem 0 0;
    text-align: center;
    font-size: 0.75rem;
    color: var(--andala-muted, #8b93a7);
}

.andala-checkout-spinner {
    width: 42px;
    height: 42px;
    margin: 0 auto;
    border: 3px solid var(--andala-border, #e4e8ef);
    border-top-color: var(--andala-primary, #0052ff);
    border-radius: 50%;
    animation: andalaCheckoutSpin 0.8s linear infinite;
}

@keyframes andalaCheckoutSpin {
    to { transform: rotate(360deg); }
}

.andala-checkout-panel .form-control {
    border-radius: 10px;
}

.andala-checkout-panel .btn-primary {
    border-radius: 10px;
    background: var(--andala-gradient-warm, linear-gradient(135deg, #0052ff 0%, #7c3aed 100%));
    border: 0;
}

.andala-checkout-panel .btn-primary:disabled {
    opacity: 0.7;
}

@media (prefers-reduced-motion: reduce) {
    .andala-checkout-panel,
    .andala-checkout-spinner {
        animation: none;
    }
}