/**
 * Design System Integration
 * Applies design system classes to existing HTML elements
 */

/* -------------------------------- 
   General Design System Integration
-------------------------------- */

/* Apply color system */
:root {
    /* Map existing variables to design system */
    --primary-color: var(--primary-500);
    --primary-light: var(--primary-300);
    --primary-dark: var(--primary-700);
    
    --success-color: var(--success-500);
    --success-light: var(--success-100);
    --success-dark: var(--success-700);
    
    --warning-color: var(--warning-500);
    --warning-light: var(--warning-100);
    --warning-dark: var(--warning-700);
    
    --danger-color: var(--danger-500);
    --danger-light: var(--danger-100);
    --danger-dark: var(--danger-700);
    
    --info-color: var(--info-500);
    --info-light: var(--info-100);
    --info-dark: var(--info-700);
}

/* -------------------------------- 
   Navigation Upgrades
-------------------------------- */

/* Enhanced sidebar */
.sidebar {
    background-color: var(--bg-secondary);
    transition: all var(--transition-normal) var(--easing-default);
}

/* Enhanced nav items */
.nav-item a {
    transition: all var(--transition-fast) var(--easing-default);
}

.nav-item a:hover {
    background-color: var(--bg-tertiary);
}

.nav-item.active a {
    background-color: var(--primary-50);
    color: var(--primary-700);
    font-weight: var(--font-weight-medium);
}

/* Icon enhancements */
.nav-icon, .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
}

.nav-icon svg, .icon svg {
    width: 100%;
    height: 100%;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    width: 44px;
    height: 44px;
    cursor: pointer;
    color: var(--text-primary);
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
}

/* -------------------------------- 
   Typography Enhancements
-------------------------------- */

/* Apply typography system */
body {
    font-family: var(--font-family-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
}

.page-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-2);
}

.welcome-message {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

/* -------------------------------- 
   Button Enhancements
-------------------------------- */

/* Apply design system to buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast) var(--easing-default);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-500-rgb), 0.25);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-color);
}

.btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
}

.btn-danger {
    background-color: var(--danger-color);
    border: none;
}

.btn-danger:hover {
    background-color: var(--danger-color);
    border: none;
}

.btn-success {
    background-color: var(--success-color);
}

.btn-success:hover {
    background-color: var(--success-color);
}

/* -------------------------------- 
   Card Enhancements
-------------------------------- */

/* Apply design system to cards */
.card,
.dashboard-widget,
.booking-card,
.meeting-type-card,
.stat-card {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal) var(--easing-default);
}

.card:hover,
.dashboard-widget:hover,
.booking-card:hover,
.meeting-type-card:hover {
    box-shadow: var(--shadow-md);
}

.widget-header,
.card-header {
    border-bottom: 1px solid var(--border-color);
}

.widget-footer,
.card-footer {
    border-top: 1px solid var(--border-color);
}

/* -------------------------------- 
   Form Enhancements
-------------------------------- */

/* Apply design system to forms */
.form-input,
.form-select,
.form-textarea {
    border-radius: var(--radius-md);
    transition: all var(--transition-fast) var(--easing-default);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 2px var(--primary-100);
}

.form-label {
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-1);
}

/* -------------------------------- 
   Table Enhancements
-------------------------------- */

/* Apply design system to tables */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table th {
    text-align: left;
    font-weight: var(--font-weight-semibold);
    padding: var(--space-3);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--space-3);
    border-bottom: 1px solid var(--border-color);
}

.table tr:last-child td {
    border-bottom: none;
}

.table-striped tbody tr:nth-child(odd) {
    background-color: var(--bg-secondary);
}

.table-hover tbody tr:hover {
    background-color: var(--bg-tertiary);
}

/* -------------------------------- 
   Utility Classes Integration
-------------------------------- */

/* Apply spacing utility classes */
.content-wrapper {
    padding: var(--space-6);
}

@media (max-width: 768px) {
    .content-wrapper {
        padding: var(--space-4);
    }
}

@media (max-width: 576px) {
    .content-wrapper {
        padding: var(--space-3);
    }
}

/* -------------------------------- 
   Mobile Enhancements
-------------------------------- */

/* Enhanced mobile sidebar */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        top: var(--header-mobile-height);
        left: 0;
        height: calc(100vh - var(--header-mobile-height));
        z-index: var(--z-index-nav);
        width: 280px;
        box-shadow: var(--shadow-lg);
        transition: transform var(--transition-normal) var(--easing-default);
    }
    
    .sidebar.visible {
        transform: translateX(0);
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: var(--header-mobile-height);
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: calc(var(--z-index-nav) - 1);
    }
    
    .sidebar-overlay.visible {
        display: block;
    }
}

/* -------------------------------- 
   Icon Sizing and Colors
-------------------------------- */

/* Icon sizing */
.icon-xs {
    width: 16px;
    height: 16px;
}

.icon-sm {
    width: 20px;
    height: 20px;
}

.icon-md {
    width: 24px;
    height: 24px;
}

.icon-lg {
    width: 32px;
    height: 32px;
}

.icon-xl {
    width: 48px;
    height: 48px;
}

/* Icon colors */
.icon-primary {
    color: var(--primary-500);
}

.icon-secondary {
    color: var(--text-secondary);
}

.icon-success {
    color: var(--success-500);
}

.icon-warning {
    color: var(--warning-500);
}

.icon-danger {
    color: var(--danger-500);
}

.icon-light {
    color: var(--text-tertiary);
}

/* -------------------------------- 
   Dark Mode Enhancements
-------------------------------- */

/* Enhanced dark mode */
[data-theme="dark"] .card,
[data-theme="dark"] .dashboard-widget,
[data-theme="dark"] .booking-card,
[data-theme="dark"] .meeting-type-card,
[data-theme="dark"] .stat-card {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
    background-color: var(--bg-secondary);
    border-color: var(--border-dark);
}

[data-theme="dark"] .btn-secondary {
    background-color: var(--bg-tertiary);
    border-color: var(--border-dark);
}

[data-theme="dark"] .nav-item.active a {
    background-color: var(--primary-900);
    color: var(--primary-300);
}

/* Dark mode icon placeholder */
[data-theme="dark"] .icon-placeholder {
    background-color: var(--bg-tertiary);
}