/* ===========================
   استشارات الأعمال - ملف الأنماط الرئيسي
   Business Consulting - Main Stylesheet
   =========================== */

/* ===========================
   1. متغيرات CSS العامة
   CSS Custom Properties
   =========================== */
:root {
  /* الألوان الأساسية - Primary Colors */
  --primary-color: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --primary-rgb: 37, 99, 235;
  --primary-hsl: 221, 83%, 53%;
  --secondary-color: #64748b;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #06b6d4;
  
  /* الألوان المحايدة - Neutral Colors */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* الخطوط - Typography */
  --font-family-arabic: 'Cairo', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-family-english: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* المسافات - Spacing */
  --section-padding: 80px 0;
  --container-max-width: 1200px;
  
  /* الانتقالات - Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* الظلال - 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);
  
  /* الحدود - Borders */
  --border-radius-sm: 0.375rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-2xl: 1.5rem;
  --border-radius-full: 9999px;
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

/* ===========================
   2. إعدادات عامة
   General Settings
   =========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 80px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-family-arabic);
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  transition: var(--transition-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'liga' 1, 'kern' 1;
  min-height: 100vh;
}

/* تحسين الخطوط للشاشات عالية الكثافة */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  body {
    -webkit-font-smoothing: subpixel-antialiased;
  }
}

/* إعدادات اللغة العربية - Arabic Language Settings */
html[lang="ar"] {
  direction: rtl;
  text-align: right;
}

html[lang="ar"] body {
  font-family: var(--font-family-arabic);
  font-feature-settings: 'liga' 1, 'kern' 1, 'calt' 1;
}

/* تحسينات النصوص العربية */
html[lang="ar"] h1,
html[lang="ar"] h2,
html[lang="ar"] h3,
html[lang="ar"] h4,
html[lang="ar"] h5,
html[lang="ar"] h6 {
  font-weight: 600;
  letter-spacing: -0.025em;
}

/* إعدادات اللغة الإنجليزية - English Language Settings */
html[lang="en"] {
  direction: ltr;
  text-align: left;
}

html[lang="en"] body {
  font-family: var(--font-family-english);
}

/* ===========================
   3. مكونات Bootstrap المخصصة
   Custom Bootstrap Components
   =========================== */

/* الحاوي - Container */
.container {
  max-width: var(--container-max-width);
}

/* الأزرار - Buttons */
.btn {
  font-weight: 500;
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-color: var(--primary-color);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), #1e40af);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

.btn-outline-primary:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 12px 32px;
  font-size: var(--font-size-lg);
  border-radius: var(--border-radius-lg);
}

.btn-floating {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: var(--border-radius-full);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-xl);
}

.btn-floating.show {
  opacity: 1;
  visibility: visible;
}

/* البطاقات - Cards */
.card {
  border: none;
  border-radius: var(--border-radius-xl);
  transition: var(--transition-normal);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

/* ===========================
   4. شريط التنقل
   Navigation Bar
   =========================== */
.navbar {
  padding: 1rem 0;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95) !important;
  box-shadow: var(--shadow-md);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  transition: var(--transition-fast);
}

.navbar-brand:hover {
  transform: scale(1.05);
}

.nav-link {
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition-fast);
  position: relative;
  margin: 0 0.5rem;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* ===========================
   5. قسم البطل (Hero)
   Hero Section
   =========================== */
.hero-section {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--gray-50) 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.1"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="100" fill="url(%23a)"/><circle cx="800" cy="300" r="150" fill="url(%23a)"/><circle cx="400" cy="700" r="120" fill="url(%23a)"/></svg>') no-repeat center center;
  background-size: cover;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.hero-stats {
  margin: 2rem 0;
}

.stat-item {
  padding: 1rem;
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  transition: var(--transition-normal);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.95);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-buttons {
  margin-top: 2rem;
}

/* العناصر المتحركة في قسم البطل */
.hero-image {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-card {
  position: absolute;
  top: 20%;
  right: 10%;
  width: 280px;
  animation: floating 3s ease-in-out infinite;
  z-index: 3;
}

.floating-element {
  position: absolute;
  bottom: 20%;
  left: 10%;
  width: 120px;
  text-align: center;
  animation: floating 3s ease-in-out infinite reverse;
  z-index: 3;
}

.hero-bg-shape {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(29, 78, 216, 0.05));
  border-radius: 50%;
  filter: blur(40px);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes floating {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.7; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.3; }
}

.avatar {
  width: 40px;
  height: 40px;
}

/* مؤشر التمرير */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.scroll-down {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--gray-600);
  transition: var(--transition-fast);
}

.scroll-down:hover {
  color: var(--primary-color);
  transform: translateY(-3px);
}

.scroll-down i {
  animation: bounce 2s infinite;
  margin-top: 0.5rem;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* ===========================
   6. الأقسام العامة
   General Sections
   =========================== */
.section-padding {
  padding: var(--section-padding);
}

.section-label {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  display: inline-block;
  position: relative;
}

.section-label::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 50px;
  height: 2px;
  background: var(--primary-color);
}

.section-title {
  font-weight: 800;
  line-height: 1.2;
  color: var(--gray-900);
}

/* ===========================
   7. قسم من نحن
   About Section
   =========================== */
.about-content {
  padding-right: 2rem;
}

html[lang="en"] .about-content {
  padding-right: 0;
  padding-left: 2rem;
}

.features-list {
  margin-top: 2rem;
}

.feature-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition-fast);
}

.feature-item:last-child {
  border-bottom: none;
}

.feature-item:hover {
  padding-left: 1rem;
  background: var(--gray-50);
  border-radius: var(--border-radius);
}

html[lang="ar"] .feature-item:hover {
  padding-left: 0;
  padding-right: 1rem;
}

.feature-icon {
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
}

.about-visual {
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.stat-card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--border-radius-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.stat-description {
  color: var(--gray-600);
  font-size: var(--font-size-sm);
}

/* ===========================
   8. قسم الخدمات
   Services Section
   =========================== */
.service-card {
  transition: var(--transition-normal);
  height: 100%;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  width: 70px;
  height: 70px;
  font-size: 1.8rem;
}

.service-features li {
  padding: 0.25rem 0;
  transition: var(--transition-fast);
}

.service-features li:hover {
  color: var(--primary-color);
  padding-left: 0.5rem;
}

html[lang="ar"] .service-features li:hover {
  padding-left: 0;
  padding-right: 0.5rem;
}

/* ===========================
   9. قسم المعرض (Portfolio)
   Portfolio Section
   =========================== */
.portfolio-filters {
  margin-bottom: 3rem;
}

.portfolio-filters .btn {
  margin: 0 0.25rem 0.5rem 0.25rem;
  border-radius: var(--border-radius-full);
  font-weight: 500;
}

.portfolio-item {
  transition: var(--transition-normal);
}

.portfolio-item.hidden {
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
}

.portfolio-card {
  overflow: hidden;
  transition: var(--transition-normal);
}

.portfolio-image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

.image-placeholder {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-card:hover .image-placeholder {
  transform: scale(1.1);
}

.portfolio-stats {
  font-size: var(--font-size-sm);
}

/* ===========================
   10. قسم آراء العملاء
   Testimonials Section
   =========================== */
.testimonial-card {
  transition: var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.testimonial-rating {
  font-size: var(--font-size-sm);
}

.testimonial-quote {
  font-style: italic;
  color: var(--gray-600);
  line-height: 1.8;
}

.author-avatar {
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
}

/* ===========================
   11. قسم التواصل
   Contact Section
   =========================== */
.contact-item {
  margin-bottom: 2rem;
}

.contact-icon {
  width: 50px;
  height: 50px;
  font-size: 1.2rem;
}

.contact-form {
  background: var(--white);
  border-radius: var(--border-radius-xl);
}

.form-label {
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-control,
.form-select {
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  transition: var(--transition-fast);
  background: var(--white);
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
  outline: none;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger-color);
}

.invalid-feedback {
  font-size: var(--font-size-sm);
  color: var(--danger-color);
  margin-top: 0.25rem;
}

.form-check-input:checked {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

/* ===========================
   12. التذييل
   Footer
   =========================== */
.footer {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  color: var(--white);
}

.footer-brand h5 {
  color: var(--primary-color);
}

.footer-links li a {
  transition: var(--transition-fast);
}

.footer-links li a:hover {
  color: var(--primary-color) !important;
  padding-left: 0.5rem;
}

html[lang="ar"] .footer-links li a:hover {
  padding-left: 0;
  padding-right: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===========================
   13. شاشة التحميل
   Loading Screen
   =========================== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: var(--transition-slow);
}

.loading-screen.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loader {
  text-align: center;
  color: var(--white);
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top: 4px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  font-size: var(--font-size-lg);
  font-weight: 500;
}

/* ===========================
   14. تأثيرات الحركة
   Animation Effects
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: var(--transition-slow);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: var(--transition-slow);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-slow);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ===========================
   15. تحسينات الأداء
   Performance Optimizations
   =========================== */
.lazy-load {
  opacity: 0;
  transition: opacity 0.3s;
}

.lazy-load.loaded {
  opacity: 1;
}

/* تحسين الخطوط */
@font-display: swap;

/* تحسين الصور */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===========================
   16. تحسينات الأداء
   Performance Optimizations
   =========================== */

/* تسريع العناصر المتحركة */
.will-change-transform {
  will-change: transform;
}

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

/* تحسين الرسوم المتحركة */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  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); }
}

/* فئات الأنيميشن */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out forwards;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.6s ease-out forwards;
}

/* تحسين التمرير */
.smooth-scroll {
  scroll-behavior: smooth;
}

/* تحسين الصور */
.lazy-image {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.lazy-image.loaded {
  opacity: 1;
}

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

/* تحسين اللمس */
.touch-target {
  min-height: 44px;
  min-width: 44px;
}

/* إخفاء العناصر بصرياً مع الحفاظ على إمكانية الوصول */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ===========================
   17. إضافات مفيدة
   Utility Classes
   =========================== */
.text-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.border-gradient {
  border: 2px solid transparent;
  background: linear-gradient(var(--white), var(--white)) padding-box,
              linear-gradient(135deg, var(--primary-color), var(--primary-dark)) border-box;
}

.backdrop-blur {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.no-scroll {
  overflow: hidden;
}