/* ==========================================================================
   Modal — generic dialog pattern for future use: product quick-view,
   size guide, age/region gate, confirmation dialogs. Not wired up yet;
   JS toggles `.is-open` on `.modal-overlay` and moves focus in/out.
   ========================================================================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 10, .55);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: var(--z-modal);
}

.modal-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 100%;
    max-width: 560px;
    max-height: 88vh;
    overflow-y: auto;
    background: var(--bg);
    color: var(--text);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transform: translateY(16px) scale(.98);
    transition: transform var(--transition);
}

.modal-overlay.is-open .modal {
    transform: translateY(0) scale(1);
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-5) var(--space-3);
    border-bottom: 1px solid var(--border);
}

.modal__title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin: 0;
}

.modal__close {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--secondary);
    padding: var(--space-2);
    line-height: 0;
    border-radius: 50%;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.modal__close:hover {
    background: var(--border);
    color: var(--text);
}

.modal__body {
    padding: var(--space-5);
}

.modal__footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5) var(--space-5);
    border-top: 1px solid var(--border);
}

body.modal-active {
    overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .modal-overlay,
    .modal {
        transition-duration: .01ms;
    }
}

@media (max-width: 480px) {
    .modal-overlay {
        align-items: flex-end;
        padding: 0;
    }

    .modal {
        max-width: 100%;
        max-height: 92vh;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        transform: translateY(100%);
    }

    .modal-overlay.is-open .modal {
        transform: translateY(0);
    }
}