/* ============================================
   CSS متقدم جداً - توزيع ألوان احترافي
   Advanced Professional CSS - Color Distribution
   ============================================ */

/* CSS Variables متقدمة */
:root {
    /* Color Palette - نظام ألوان متقدم */
    --color-primary: #28a745;
    --color-primary-light: #48c765;
    --color-primary-dark: #218838;
    --color-secondary: #dc3545;
    --color-secondary-light: #e4606d;
    --color-secondary-dark: #c82333;
    --color-accent: #ff6b35;
    --color-accent-light: #ff8c5a;
    --color-accent-dark: #e55a2b;
    
    /* Neutral Colors - ألوان محايدة */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #f8f9fa;
    --color-gray-100: #e9ecef;
    --color-gray-200: #dee2e6;
    --color-gray-300: #ced4da;
    --color-gray-400: #adb5bd;
    --color-gray-500: #6c757d;
    --color-gray-600: #495057;
    --color-gray-700: #343a40;
    --color-gray-800: #212529;
    --color-gray-900: #1a1a1a;
    
    /* Advanced Gradients - تدرجات متقدمة */
    --gradient-primary: linear-gradient(135deg, #28a745 0%, #20c997 50%, #17a2b8 100%);
    --gradient-secondary: linear-gradient(135deg, #dc3545 0%, #fd7e14 50%, #ffc107 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #f7931e 50%, #ffc837 100%);
    --gradient-hero: linear-gradient(135deg, rgba(40, 167, 69, 0.1) 0%, rgba(220, 53, 69, 0.1) 50%, rgba(255, 107, 53, 0.1) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 50%, #1a1a1a 100%);
    --gradient-light: linear-gradient(135deg, #ffffff 0%, #f8f9fa 50%, #ffffff 100%);
    
    /* Advanced Shadows - ظلال متقدمة */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.18);
    --shadow-2xl: 0 16px 32px rgba(0, 0, 0, 0.2);
    --shadow-3xl: 0 24px 48px rgba(0, 0, 0, 0.25);
    
    /* Colored Shadows - ظلال ملونة */
    --shadow-primary: 0 8px 24px rgba(40, 167, 69, 0.3);
    --shadow-secondary: 0 8px 24px rgba(220, 53, 69, 0.3);
    --shadow-accent: 0 8px 24px rgba(255, 107, 53, 0.3);
    --shadow-primary-lg: 0 16px 48px rgba(40, 167, 69, 0.4);
    --shadow-secondary-lg: 0 16px 48px rgba(220, 53, 69, 0.4);
    --shadow-accent-lg: 0 16px 48px rgba(255, 107, 53, 0.4);
    
    /* Spacing System - نظام المسافات */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Border Radius - زوايا مدورة */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Typography - الخطوط */
    --font-family-primary: 'Hacen Casablanca', 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-english: 'AmpleSoft Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Transitions - انتقالات */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale - مستويات الطبقات */
    --z-base: 1;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ============================================
   Light Theme - الثيم النهاري
   ============================================ */
.light-theme {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-hover: #f1f3f5;
    --bg-active: #e9ecef;
    
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-tertiary: #6c757d;
    --text-muted: #adb5bd;
    
    --border-primary: #dee2e6;
    --border-secondary: #ced4da;
    --border-accent: #28a745;
    
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

/* ============================================
   Dark Theme - الثيم الليلي
   ============================================ */
.dark-theme {
    --bg-primary: #000000;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2d2d2d;
    --bg-hover: #333333;
    --bg-active: #404040;
    
    --text-primary: #ffffff;
    --text-secondary: #e9ecef;
    --text-tertiary: #ced4da;
    --text-muted: #adb5bd;
    
    --border-primary: #404040;
    --border-secondary: #4d4d4d;
    --border-accent: #ffffff;
    
    --shadow-color: rgba(255, 255, 255, 0.1);
    --shadow-hover: rgba(255, 255, 255, 0.15);
}

/* ============================================
   Advanced Card System - نظام البطاقات المتقدم
   ============================================ */
.advanced-card {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    overflow: hidden;
    border: 1px solid var(--border-primary);
}

.advanced-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.advanced-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl), var(--shadow-primary);
    border-color: var(--color-primary);
}

.advanced-card:hover::before {
    opacity: 1;
}

.advanced-card-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
}

.advanced-card-secondary {
    background: var(--gradient-secondary);
    color: var(--color-white);
    border: none;
}

.advanced-card-glass {
    background: var(--gradient-glass);
    backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ============================================
   Advanced Button System - نظام الأزرار المتقدم
   ============================================ */
.btn-advanced {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-family-primary);
    font-weight: var(--font-weight-semibold);
    font-size: 1rem;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
    z-index: var(--z-base);
}

.btn-advanced::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn-advanced:hover::before {
    width: 300px;
    height: 300px;
}

.btn-advanced-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-primary);
}

.btn-advanced-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-lg);
}

.btn-advanced-secondary {
    background: var(--gradient-secondary);
    color: var(--color-white);
    box-shadow: var(--shadow-secondary);
}

.btn-advanced-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-secondary-lg);
}

.btn-advanced-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-advanced-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-advanced-ghost {
    background: transparent;
    color: var(--text-primary);
    border: none;
}

.btn-advanced-ghost:hover {
    background: var(--bg-hover);
}

/* ============================================
   Advanced Grid System - نظام الشبكة المتقدم
   ============================================ */
.grid-advanced {
    display: grid;
    gap: var(--space-lg);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-advanced-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-advanced-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-advanced-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (min-width: 768px) {
    .grid-advanced-responsive {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .grid-advanced-responsive {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .grid-advanced-responsive {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   Advanced Typography - خطوط متقدمة
   ============================================ */
.text-gradient-primary {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-secondary {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-accent {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-shadow-sm {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.text-shadow-md {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.text-shadow-lg {
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* ============================================
   Advanced Animations - حركات متقدمة
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base);
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-base);
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-base);
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-base);
}

.animate-slide-in-left {
    animation: slideInLeft var(--transition-base);
}

.animate-scale-in {
    animation: scaleIn var(--transition-base);
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================
   Advanced Effects - تأثيرات متقدمة
   ============================================ */
.effect-glow {
    position: relative;
}

.effect-glow::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(40, 167, 69, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    z-index: -1;
}

.effect-glow:hover::after {
    opacity: 1;
}

.effect-shimmer {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.effect-ripple {
    position: relative;
    overflow: hidden;
}

.effect-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.effect-ripple:active::before {
    width: 300px;
    height: 300px;
}

/* ============================================
   Advanced Layout Utilities - أدوات التخطيط المتقدمة
   ============================================ */
.container-advanced {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section-advanced {
    padding: var(--space-4xl) 0;
}

.flex-advanced {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    justify-content: space-between;
}

.flex-advanced-center {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.flex-advanced-column {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* ============================================
   Advanced Form Elements - عناصر النماذج المتقدمة
   ============================================ */
.form-advanced {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.input-advanced {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-family-primary);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    outline: none;
}

.input-advanced:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(40, 167, 69, 0.1);
    transform: translateY(-2px);
}

.input-advanced::placeholder {
    color: var(--text-muted);
}

/* ============================================
   Responsive Design - تصميم متجاوب
   ============================================ */
@media (max-width: 768px) {
    .container-advanced {
        padding: 0 var(--space-md);
    }
    
    .section-advanced {
        padding: var(--space-2xl) 0;
    }
    
    .grid-advanced {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .btn-advanced {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   Performance Optimizations - تحسينات الأداء
   ============================================ */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* ============================================
   Accessibility - إمكانية الوصول
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

.focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   Print Styles - أنماط الطباعة
   ============================================ */
@media print {
    .advanced-card,
    .btn-advanced {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .text-gradient-primary,
    .text-gradient-secondary,
    .text-gradient-accent {
        -webkit-text-fill-color: #000;
        color: #000;
    }
}