/* ============================================
   Shared Components CSS - World-Class Design
   مكونات مشتركة - تصميم عالمي
   ============================================ */

:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-lighter: #dbeafe;
    
    /* Secondary Colors */
    --secondary-color: #7c3aed;
    --secondary-dark: #6d28d9;
    --secondary-light: #8b5cf6;
    
    /* Success Colors */
    --success-color: #10b981;
    --success-dark: #059669;
    --success-light: #34d399;
    --success-lighter: #d1fae5;
    
    /* Warning Colors */
    --warning-color: #f59e0b;
    --warning-dark: #d97706;
    --warning-light: #fbbf24;
    --warning-lighter: #fef3c7;
    
    /* Danger Colors */
    --danger-color: #ef4444;
    --danger-dark: #dc2626;
    --danger-light: #f87171;
    --danger-lighter: #fee2e2;
    
    /* Info Colors */
    --info-color: #06b6d4;
    --info-dark: #0891b2;
    --info-light: #22d3ee;
    --info-lighter: #cffafe;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   Modern Card Component
   ============================================ */
.modern-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-200);
}

.modern-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.modern-card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.modern-card-body {
    padding: 1.5rem;
}

.modern-card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================================
   Modern Button Component
   ============================================ */
.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
}

.btn-modern:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-modern:active {
    transform: translateY(0);
}

.btn-modern:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Button Variants */
.btn-modern-primary {
    background: var(--primary-color);
    color: white;
}

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

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

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

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

.btn-modern-danger:hover {
    background: var(--danger-dark);
    color: white;
}

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

.btn-modern-warning:hover {
    background: var(--warning-dark);
    color: white;
}

.btn-modern-outline {
    background: transparent;
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.btn-modern-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

/* Button Sizes */
.btn-modern-sm {
    padding: 0.375rem 0.875rem;
    font-size: 0.8125rem;
}

.btn-modern-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

/* ============================================
   Modern Badge Component
   ============================================ */
.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    line-height: 1.5;
}

.badge-modern-primary {
    background: var(--primary-lighter);
    color: var(--primary-dark);
}

.badge-modern-success {
    background: var(--success-lighter);
    color: var(--success-dark);
}

.badge-modern-danger {
    background: var(--danger-lighter);
    color: var(--danger-dark);
}

.badge-modern-warning {
    background: var(--warning-lighter);
    color: var(--warning-dark);
}

.badge-modern-info {
    background: var(--info-lighter);
    color: var(--info-dark);
}

/* ============================================
   Modern Input Component
   ============================================ */
.input-modern {
    display: block;
    width: 100%;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-900);
    background: white;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.input-modern:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.input-modern:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

.input-modern-error {
    border-color: var(--danger-color);
}

.input-modern-error:focus {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 3px var(--danger-lighter);
}

/* ============================================
   Modern Select Component
   ============================================ */
.select-modern {
    display: block;
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 1rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-900);
    background: white url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e") no-repeat right 0.5rem center/1.5em 1.5em;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    appearance: none;
}

.select-modern:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

/* ============================================
   Modern Checkbox & Radio
   ============================================ */
.checkbox-modern,
.radio-modern {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--gray-300);
    transition: all var(--transition-base);
    cursor: pointer;
}

.checkbox-modern {
    border-radius: var(--radius-sm);
}

.radio-modern {
    border-radius: var(--radius-full);
}

.checkbox-modern:checked,
.radio-modern:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-modern:focus,
.radio-modern:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

/* ============================================
   Modern Alert Component
   ============================================ */
.alert-modern {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border-left: 4px solid;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.alert-modern-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.alert-modern-content {
    flex: 1;
}

.alert-modern-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.alert-modern-success {
    background: var(--success-lighter);
    border-color: var(--success-color);
    color: var(--success-dark);
}

.alert-modern-danger {
    background: var(--danger-lighter);
    border-color: var(--danger-color);
    color: var(--danger-dark);
}

.alert-modern-warning {
    background: var(--warning-lighter);
    border-color: var(--warning-color);
    color: var(--warning-dark);
}

.alert-modern-info {
    background: var(--info-lighter);
    border-color: var(--info-color);
    color: var(--info-dark);
}

/* ============================================
   Modern Loading Spinner
   ============================================ */
.spinner-modern {
    display: inline-block;
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.spinner-modern-sm {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

.spinner-modern-lg {
    width: 3rem;
    height: 3rem;
    border-width: 4px;
}

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

/* ============================================
   Modern Progress Bar
   ============================================ */
.progress-modern {
    height: 0.5rem;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-modern-bar {
    height: 100%;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-modern-bar-success {
    background: var(--success-color);
}

.progress-modern-bar-warning {
    background: var(--warning-color);
}

.progress-modern-bar-danger {
    background: var(--danger-color);
}

/* ============================================
   Modern Tooltip
   ============================================ */
.tooltip-modern {
    position: relative;
    display: inline-block;
}

.tooltip-modern-text {
    visibility: hidden;
    position: absolute;
    z-index: var(--z-tooltip);
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0.75rem;
    background: var(--gray-900);
    color: white;
    font-size: 0.75rem;
    border-radius: var(--radius);
    white-space: nowrap;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.tooltip-modern:hover .tooltip-modern-text {
    visibility: visible;
    opacity: 1;
}

/* ============================================
   Modern Empty State
   ============================================ */
.empty-state-modern {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state-modern-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    color: var(--gray-400);
}

.empty-state-modern-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.empty-state-modern-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

/* ============================================
   Modern Stats Card
   ============================================ */
.stats-card-modern {
    background: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.stats-card-modern:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stats-card-modern-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.stats-card-modern-icon-primary {
    background: var(--primary-lighter);
    color: var(--primary-color);
}

.stats-card-modern-icon-success {
    background: var(--success-lighter);
    color: var(--success-color);
}

.stats-card-modern-icon-warning {
    background: var(--warning-lighter);
    color: var(--warning-color);
}

.stats-card-modern-icon-danger {
    background: var(--danger-lighter);
    color: var(--danger-color);
}

.stats-card-modern-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 0.25rem;
}

.stats-card-modern-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
}

.stats-card-modern-change {
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.stats-card-modern-change-positive {
    color: var(--success-color);
}

.stats-card-modern-change-negative {
    color: var(--danger-color);
}

/* ============================================
   Modern Table
   ============================================ */
.table-modern {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-modern thead th {
    background: var(--gray-50);
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 1rem;
    text-align: right;
    border-bottom: 1px solid var(--gray-200);
}

.table-modern tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-900);
}

.table-modern tbody tr:hover {
    background: var(--gray-50);
}

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

/* ============================================
   Modern Pagination
   ============================================ */
.pagination-modern {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.pagination-modern-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    background: white;
    color: var(--gray-700);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.pagination-modern-item:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.pagination-modern-item.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination-modern-item:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   Modern Modal Component
   ============================================ */
.modal-backdrop-modern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    animation: fadeIn 0.2s ease;
}

.modal-modern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-dialog-modern {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    max-width: 70vw;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalSlideIn 0.3s ease-out;
}

.modal-header-modern {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title-modern {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.modal-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-400);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body-modern {
    padding: 2rem;
    max-height: 60vh;
    overflow-y: auto;
    flex: 1;
}

.modal-footer-modern {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

/* ============================================
   Form Controls in Modals - تقليل حجم الحقول
   ============================================ */
.modal-body-modern .form-control,
.modal-body-modern .form-select {
    padding: 0.4rem 0.75rem;
    font-size: 0.875rem;
    height: 2rem;
}

.modal-body-modern .form-select {
    padding-right: 2rem;
}

.modal-body-modern .form-label {
    font-size: 0.8rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.modal-body-modern .form-group,
.modal-body-modern .mb-3 {
    margin-bottom: 0.75rem;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* ============================================
   Modern Toast Notifications
   ============================================ */
.toast-modern {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-bottom: 0.75rem;
    animation: toastSlideIn 0.3s ease-out;
    max-width: 400px;
    min-width: 300px;
}

.toast-modern-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
}

.toast-message {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--gray-900);
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: currentColor;
    opacity: 0.3;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastSlideInRTL {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

[dir="rtl"] .toast-modern {
    animation: toastSlideInRTL 0.3s ease-out;
}

/* ============================================
   Unified Toast (success/error/warning/info)
   ============================================ */
.unified-toast-container {
    padding: 12px;
    width: 100%;
    max-width: 420px;
    pointer-events: none;
}

.unified-toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 16px;
    color: #fff;
    box-shadow: 0 14px 40px rgba(0,0,0,0.18);
    margin-bottom: 12px;
    min-width: 280px;
    max-width: 420px;
    transform: translateY(10px);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
    pointer-events: auto;
}

.unified-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.unified-toast .toast-icon-wrap {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(255,255,255,0.18);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.unified-toast .toast-body-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.unified-toast .toast-title-text {
    font-weight: 700;
    font-size: 15px;
    line-height: 1.3;
}

.unified-toast .toast-message-text {
    font-size: 14px;
    line-height: 1.5;
    opacity: 0.92;
}

.unified-toast .toast-close-btn {
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.9);
    font-size: 18px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.unified-toast .toast-close-btn:hover {
    background: rgba(255,255,255,0.12);
    transform: scale(1.02);
}

.unified-toast.toast-success { background: #1f9e64; }
.unified-toast.toast-danger  { background: #d64545; }
.unified-toast.toast-warning { background: #f3a73b; }
.unified-toast.toast-info    { background: #2f80ed; }

.unified-toast.rtl {
    direction: rtl;
}

@media (max-width: 768px) {
    .unified-toast-container {
        width: calc(100% - 24px);
        left: 50% !important;
        transform: translateX(-50%);
    }
    .unified-toast {
        width: 100%;
        max-width: 100%;
    }
}

/* ============================================
   Modern Loading Indicators
   ============================================ */
.loader-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.2s ease;
}

.loader-spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

.loader-text {
    font-size: 0.875rem;
    color: var(--gray-600);
    text-align: center;
    margin-top: 1rem;
}

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

@keyframes dotPulse {
    0%, 80%, 100% { 
        transform: scale(0); 
        opacity: 0.5; 
    }
    40% { 
        transform: scale(1); 
        opacity: 1; 
    }
}

@keyframes barScale {
    0%, 40%, 100% { 
        transform: scaleY(0.4); 
    }
    20% { 
        transform: scaleY(1); 
    }
}

/* ============================================
   Modern Empty States
   ============================================ */
.empty-state-modern {
    text-align: center;
    padding: 3rem 1.5rem;
}

.empty-state-modern i {
    font-size: 4rem;
    color: var(--gray-400);
    opacity: 0.6;
    margin-bottom: 1rem;
}

.empty-state-modern h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.empty-state-modern p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Modern Error States
   ============================================ */
.error-state-modern {
    text-align: center;
    padding: 3rem 1.5rem;
    background: var(--danger-lighter);
    border: 1px solid var(--danger-light);
    border-radius: var(--radius-lg);
    margin: 1rem 0;
}

.error-state-modern i {
    font-size: 4rem;
    color: var(--danger-color);
    margin-bottom: 1rem;
}

.error-state-modern h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--danger-dark);
    margin-bottom: 0.5rem;
}

.error-state-modern p {
    color: var(--danger-dark);
    margin-bottom: 1.5rem;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ============================================
   Modern Skeleton Loading
   ============================================ */
.skeleton-modern {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-modern-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-modern-title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: 1rem;
}

.skeleton-modern-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-full);
}

@keyframes skeletonLoading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   Modern File Upload
   ============================================ */
.file-upload-modern {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    background: var(--gray-50);
}

.file-upload-modern:hover {
    border-color: var(--primary-color);
    background: var(--primary-lighter);
}

.file-upload-modern.dragover {
    border-color: var(--primary-color);
    background: var(--primary-lighter);
    transform: scale(1.02);
}

.file-upload-modern i {
    font-size: 3rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.file-upload-modern h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.file-upload-modern p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.file-item-modern {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
}

.file-item-modern i {
    font-size: 2rem;
    color: var(--gray-400);
}

.file-item-modern-info {
    flex: 1;
}

.file-item-modern-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-900);
}

.file-item-modern-size {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ============================================
   Modern Stepper/Wizard
   ============================================ */
.stepper-modern {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    position: relative;
}

.stepper-modern::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gray-200);
    z-index: 1;
}

.step-modern {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    z-index: 2;
    flex: 1;
}

.step-modern-circle {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
    background: var(--gray-200);
    color: var(--gray-600);
    border: 2px solid var(--gray-200);
}

.step-modern.active .step-modern-circle {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.step-modern.completed .step-modern-circle {
    background: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.step-modern-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--gray-600);
    text-align: center;
    max-width: 100px;
}

.step-modern.active .step-modern-label {
    color: var(--primary-color);
}

/* ============================================
   Responsive Utilities
   ============================================ */
@media (max-width: 768px) {
    .modern-card-header,
    .modern-card-body,
    .modern-card-footer {
        padding: 1rem;
    }
    
    .stats-card-modern {
        padding: 1rem;
    }
    
    .stats-card-modern-value {
        font-size: 1.5rem;
    }
    
    .modal-dialog-modern {
        max-width: 95vw;
    }
    
    .modal-header-modern,
    .modal-body-modern,
    .modal-footer-modern {
        padding: 1rem;
    }
    
    .toast-modern {
        min-width: 280px;
        max-width: 90vw;
    }
    
    .stepper-modern {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stepper-modern::before {
        display: none;
    }
}

/* ============================================
   RTL Support
   ============================================ */
[dir="rtl"] .table-modern thead th,
[dir="rtl"] .table-modern tbody td {
    text-align: right;
}

[dir="ltr"] .table-modern thead th,
[dir="ltr"] .table-modern tbody td {
    text-align: left;
}

[dir="rtl"] .modal-footer-modern {
    flex-direction: row-reverse;
}

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */
@media (prefers-color-scheme: dark) {
    .dark-mode .modern-card {
        background: var(--gray-800);
        border-color: var(--gray-700);
    }
    
    .dark-mode .modern-card-header,
    .dark-mode .modern-card-footer {
        background: var(--gray-900);
        border-color: var(--gray-700);
    }
    
    .dark-mode .input-modern,
    .dark-mode .select-modern {
        background: var(--gray-800);
        border-color: var(--gray-700);
        color: white;
    }
    
    .dark-mode .table-modern thead th {
        background: var(--gray-900);
        color: var(--gray-300);
    }
    
    .dark-mode .table-modern tbody td {
        color: var(--gray-300);
        border-color: var(--gray-700);
    }
    
    .dark-mode .table-modern tbody tr:hover {
        background: var(--gray-900);
    }
    
    .dark-mode .modal-dialog-modern {
        background: var(--gray-800);
    }
    
    .dark-mode .modal-header-modern,
    .dark-mode .modal-footer-modern {
        border-color: var(--gray-700);
    }
    
    .dark-mode .modal-title-modern {
        color: white;
    }
    
    .dark-mode .loader-backdrop {
        background: rgba(0, 0, 0, 0.8);
    }
}