/**
 * Modal System Styles
 * Unified modal components with glassmorphism backdrop
 * @version 4.1.0
 */

/* ============================================
 * Modal Backdrop - Glassmorphism
 * ============================================ */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 0;
    cursor: pointer;
}

/* ============================================
 * Modal Container
 * ============================================ */

.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: calc(var(--z-modal, 200) + 1);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1)),
                visibility var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
    padding: var(--spacing-4, 1rem);
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

/* ============================================
 * Modal Content - With Animation
 * ============================================ */

.modal-content {
    position: relative;
    z-index: 1;
    width: 100%;
    background: hsl(var(--background, 0 0% 100%));
    border-radius: var(--radius-lg, 0.5rem);
    box-shadow: var(--shadow-xl, 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1));
    max-width: 90vw;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform var(--transition-normal, 200ms cubic-bezier(0.4, 0, 0.2, 1));
}

.modal.open .modal-content {
    transform: scale(1);
}

/* ============================================
 * Modal Header
 * ============================================ */

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
    border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
    background: hsl(var(--muted, 210 40% 96.1%));
}

.modal-header h3 {
    margin: 0;
    font-size: var(--text-lg, 1.125rem);
    font-weight: var(--font-semibold, 600);
    color: hsl(var(--foreground, 222.2 84% 4.9%));
}

/* ============================================
 * Modal Close Button
 * ============================================ */

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: var(--radius, 0.5rem);
    background: transparent;
    color: hsl(var(--muted-foreground, 215.4 16.3% 46.9%));
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: background-color var(--transition-fast, 150ms),
                color var(--transition-fast, 150ms);
}

.modal-close:hover {
    background: hsl(var(--accent, 210 40% 96.1%));
    color: hsl(var(--foreground, 222.2 84% 4.9%));
}

.modal-close:focus-visible {
    outline: 2px solid hsl(var(--ring, 227 44% 52%));
    outline-offset: 2px;
}

/* ============================================
 * Modal Body
 * ============================================ */

.modal-body {
    padding: var(--spacing-6, 1.5rem);
    overflow-y: auto;
    flex: 1;
}

/* ============================================
 * Modal Footer
 * ============================================ */

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-3, 0.75rem);
    padding: var(--spacing-4, 1rem) var(--spacing-6, 1.5rem);
    border-top: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
    background: hsl(var(--muted, 210 40% 96.1%));
}

.modal-footer .btn {
    min-width: 80px;
    /* styles-modern.css sets flex:1 on .btn-primary/.btn-secondary globally
     * which causes footer buttons to stretch to full width. Override here. */
    flex: none;
}

/* ============================================
 * Form Elements within Modal
 * ============================================ */

.modal-body .form-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-3, 0.75rem);
    margin-bottom: var(--spacing-3, 0.75rem);
}

.modal-body .form-row label {
    min-width: 100px;
    font-size: var(--text-sm, 0.875rem);
    color: hsl(var(--foreground, 222.2 84% 4.9%));
}

.modal-body .form-row input,
.modal-body .form-row select {
    flex: 1;
    padding: var(--spacing-2, 0.5rem) var(--spacing-3, 0.75rem);
    border: 1px solid hsl(var(--input, 214.3 31.8% 91.4%));
    border-radius: var(--radius, 0.5rem);
    font-size: var(--text-sm, 0.875rem);
    background: hsl(var(--background, 0 0% 100%));
    color: hsl(var(--foreground, 222.2 84% 4.9%));
}

.modal-body .form-row input:focus,
.modal-body .form-row select:focus {
    outline: 2px solid hsl(var(--ring, 227 44% 52%));
    outline-offset: 1px;
}

.modal-body .export-section {
    margin-bottom: var(--spacing-4, 1rem);
    padding-bottom: var(--spacing-4, 1rem);
    border-bottom: 1px solid hsl(var(--border, 214.3 31.8% 91.4%));
}

.modal-body .export-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.modal-body .export-section label {
    display: block;
    font-weight: var(--font-medium, 500);
    margin-bottom: var(--spacing-2, 0.5rem);
    color: hsl(var(--foreground, 222.2 84% 4.9%));
}

.modal-body .checkbox-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2, 0.5rem);
    margin-bottom: var(--spacing-2, 0.5rem);
    font-weight: var(--font-normal, 400);
    cursor: pointer;
}

/* ============================================
 * Size Variants
 * ============================================ */

.modal-content.small {
    max-width: 400px;
    min-width: 320px;
}

.modal-content.large {
    max-width: 800px;
    min-width: 560px;
}

.modal-content.full {
    max-width: 95vw;
    max-height: 95vh;
    min-width: min(95vw, 700px);
}

/* ============================================
 * Dark Mode Support
 * ============================================ */

.dark .modal-content,
[data-theme="dark"] .modal-content {
    background: hsl(var(--background));
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.3);
}

.dark .modal-header,
.dark .modal-footer,
[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    background: hsl(var(--muted));
}

/* ============================================
 * Accessibility - Reduced Motion
 * ============================================ */

@media (prefers-reduced-motion: reduce) {
    .modal,
    .modal-content {
        transition: none;
    }
}

/* ============================================
 * Legacy Support - Hidden class
 * ============================================ */

.modal.hidden {
    display: none;
}