/* =========================================================
   MODAL
   assets/css/components/modal.css
   =========================================================
   Global modal dialog (assets/js/components/ui/modal.js).
   Loaded on every page via main.css.
   ========================================================= */

.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: var(--overlay);
    animation: modal-fade 0.2s ease;
}

.modal-dialog {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-height: calc(100vh - 3rem);
    background: var(--surface-primary);
    border: 1px solid var(--border-primary);
    border-radius: 0.75rem;
    box-shadow: var(--shadow-lg);
    animation: modal-scale-in 0.2s ease;
}

.modal-dialog--sm { max-width: 24rem; }
.modal-dialog--md { max-width: 32rem; }
.modal-dialog--lg { max-width: 48rem; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semi-bold);
    color: var(--text-primary);
    line-height: var(--leading-tight);
}

.modal-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    flex-shrink: 0;
    font-size: var(--text-xl);
    line-height: 1;
    color: var(--text-muted);
    border-radius: 0.4rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--text-secondary);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

.modal-footer .modal-action {
    text-decoration: none;
}

body.modal-open {
    overflow: hidden;
}

@keyframes modal-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modal-scale-in {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(4px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .modal-backdrop,
    .modal-dialog {
        animation: none;
    }
}

@media (max-width: 640px) {
    .modal-backdrop {
        padding: 1rem;
        align-items: flex-end;
    }

    .modal-dialog {
        max-height: calc(100vh - 2rem);
    }

    .modal-dialog--sm,
    .modal-dialog--md,
    .modal-dialog--lg {
        max-width: 100%;
    }
}