/* ==================== CSS VARIABLES ==================== */
:root {
  /* Colors - Blue theme */
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --accent: #60a5fa;

  --secondary: #0ea5e9;
  --secondary-dark: #0284c7;

  /* 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;

  /* Gradients - Modern Blue */
  --gradient-primary: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
  --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #60a5fa 100%);
  --gradient-hero: linear-gradient(135deg, rgba(37, 99, 235, 0.85) 0%, rgba(14, 165, 233, 0.85) 100%);
  --gradient-soft: linear-gradient(135deg, #7dd3fc 0%, #3b82f6 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 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: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;

  /* Shadows - Soft & Subtle */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px 0 rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 40px -10px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 25px 60px -15px rgba(0, 0, 0, 0.15);
  --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);

  /* Border radius */
  --radius-sm: 0.25rem;
  --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: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== RESET & BASE ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ==================== UTILITIES ==================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.text-gradient {
  color: var(--gray-900);
  font-weight: 800;
}

.hero-text-white {
  color: var(--white);
  font-weight: 800;
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
}

/* ==================== HEADER & NAVIGATION ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-base);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.navbar {
  padding: 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.logo-image {
  height: 150px;
  width: auto;
  transition: all var(--transition-base);
  background: transparent;
  display: block;
}

.nav-brand:hover .logo-image {
  transform: scale(1.03);
}

.logo-container {
  position: relative;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 4px 12px rgba(37, 99, 235, 0.3));
  transition: all var(--transition-base);
}

.nav-brand:hover .logo-icon {
  transform: scale(1.05) rotate(5deg);
  filter: drop-shadow(0 6px 16px rgba(37, 99, 235, 0.5));
}

.nav-brand i {
  font-size: var(--font-size-2xl);
}

.brand-name {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.15em;
  font-weight: 800;
  font-size: 1.5rem;
  filter: drop-shadow(0 2px 8px rgba(37, 99, 235, 0.2));
  position: relative;
  transition: all var(--transition-base);
}

.nav-brand:hover .brand-name {
  letter-spacing: 0.18em;
  filter: drop-shadow(0 4px 12px rgba(37, 99, 235, 0.4));
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--gray-700);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-xs);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  transition: all var(--transition-base);
}

/* ==================== HERO SECTION ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 80px;
  overflow: hidden;
}

/* Animated Background Images Slider */
.hero-background-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.hero-bg-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
  background-color: #1a1a1a;
  opacity: 0;
  transition: opacity 2s ease-in-out;
  animation: kenBurns 25s ease-in-out infinite;
}

.hero-bg-slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-bg-slide:nth-child(2) {
  animation-delay: 8s;
}

.hero-bg-slide:nth-child(3) {
  animation-delay: 16s;
}

.hero-bg-slide:nth-child(4) {
  animation-delay: 24s;
}

.hero-bg-slide:nth-child(5) {
  animation-delay: 32s;
}

.hero-bg-slide:nth-child(6) {
  animation-delay: 40s;
}

/* Ken Burns effect - zoom and pan */
@keyframes kenBurns {
  0% {
    transform: scale(1) translateX(0);
  }

  50% {
    transform: scale(1.1) translateX(-2%);
  }

  100% {
    transform: scale(1) translateX(0);
  }
}

/* Overlay with soft gradient */
.hero-overlay {
  position: absolute !important;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.7) 100%) !important;
  opacity: 1 !important;
  z-index: 0 !important;
  pointer-events: none;
  backdrop-filter: blur(2px);
}

.hero-overlay::before {
  content: '';
  display: none;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

.hero-content {
  position: relative;
  text-align: center;
  color: var(--white);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-2xl);
  z-index: 10;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease-out;
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.6);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  font-weight: 300;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  animation: fadeInUp 1s ease-out 0.2s backwards;
  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
  line-height: 1.7;
  letter-spacing: 0.3px;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.4s backwards;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.25);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.35);
  background: rgba(255, 255, 255, 1);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  border-color: rgba(255, 255, 255, 0.95);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.3);
}

/* ==================== CAROUSEL ==================== */
.carousel-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
  position: relative;
}

.carousel-container {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: 24px;
  box-shadow: 0 20px 60px -10px rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.carousel {
  display: flex;
  transition: transform var(--transition-slow);
  height: 500px;
}

.carousel-slide {
  min-width: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: flex-end;
}

.carousel-slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to top,
      rgba(37, 99, 235, 0.5) 0%,
      rgba(14, 165, 233, 0.3) 40%,
      transparent 70%);
}

.carousel-content {
  position: relative;
  z-index: 1;
  color: var(--white);
  padding: var(--spacing-xl);
  width: 100%;
}

.carousel-content h3 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.carousel-content p {
  font-size: var(--font-size-lg);
  opacity: 0.9;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: var(--white);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  transition: all var(--transition-base);
  z-index: 10;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.carousel-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-50%) scale(1.08);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.3);
}

.carousel-btn-prev {
  left: var(--spacing-md);
}

.carousel-btn-next {
  right: var(--spacing-md);
}

.carousel-dots {
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--spacing-xs);
  z-index: 10;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-dot.active {
  background: var(--white);
  width: 30px;
}

/* ==================== SECTION DIVIDER ==================== */
.section-divider {
  position: relative;
  width: 100%;
  height: 120px;
  overflow: hidden;
  background: var(--white);
  margin: 0;
  padding: 0;
}

.divider-diagonal {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* ==================== VIDEOS SECTION ====================  */
.videos-section {
  background: var(--white);
  position: relative;
}

.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.video-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.12);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.18);
  position: relative;
}

.video-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 0;
  border-radius: 20px;
}

.video-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(37, 99, 235, 0.25);
  border-color: rgba(37, 99, 235, 0.3);
}

.video-card:hover::before {
  opacity: 0.03;
}

.video-thumbnail {
  position: relative;
  padding-top: 56.25%;
  /* 16:9 aspect ratio */
  background: var(--gray-200);
  overflow: hidden;
}

.video-thumbnail iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-info {
  padding: var(--spacing-lg);
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.95);
}

.video-info h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.video-info p {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  line-height: 1.5;
}

/* ==================== BLOG SECTION ==================== */
.blog-section {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.blog-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 20px;
  padding: var(--spacing-xl);
  box-shadow: 0 8px 32px rgba(102, 126, 234, 0.1);
  transition: all var(--transition-base);
  border: 1px solid rgba(255, 255, 255, 0.18);
  position: relative;
  overflow: hidden;
}

.blog-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(102, 126, 234, 0.2);
  border-color: rgba(102, 126, 234, 0.2);
}

.blog-card:hover::before {
  transform: scaleY(1);
}

.blog-card h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.blog-card p {
  color: var(--gray-600);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.blog-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--gray-500);
}

.blog-meta i {
  color: var(--primary);
}

/* ==================== ABOUT US SECTION ==================== */
.about-section {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
  position: relative;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  margin-top: var(--spacing-2xl);
}

.about-image-wrapper {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(37, 99, 235, 0.2);
  transition: all var(--transition-base);
}

.about-image-wrapper:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 80px rgba(37, 99, 235, 0.3);
}

.about-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.about-image-wrapper:hover .about-image {
  transform: scale(1.05);
}

.about-image-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.about-image-wrapper:hover .about-image-overlay {
  opacity: 1;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.about-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.3;
}

.about-description {
  font-size: var(--font-size-lg);
  color: var(--gray-600);
  line-height: 1.8;
}

.about-description strong {
  color: var(--primary);
  font-weight: 700;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.feature-item:hover {
  transform: translateX(8px);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.15);
}

.feature-item:hover::before {
  transform: scaleY(1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.feature-content h4 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.feature-content p {
  font-size: var(--font-size-base);
  color: var(--gray-600);
  line-height: 1.6;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  transition: all var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.2);
  border-color: rgba(37, 99, 235, 0.3);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--gray-600);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ==================== CONTACT SECTION ====================  */
.contact-section {
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
  position: relative;
}

.contact-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.contact-icon {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  color: var(--white);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
  position: relative;
  overflow: hidden;
}

.contact-icon::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.2);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.contact-item:hover .contact-icon::before {
  opacity: 1;
}

.contact-item h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.contact-item p {
  color: var(--gray-600);
}

.contact-form-wrapper {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  padding: var(--spacing-2xl);
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid rgba(102, 126, 234, 0.1);
  border-radius: 12px;
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1), 0 4px 12px rgba(102, 126, 234, 0.15);
  background: rgba(255, 255, 255, 1);
}

/* ==================== FOOTER ==================== */
.footer {
  background: linear-gradient(135deg, var(--gray-900) 0%, #1a1f35 100%);
  color: var(--white);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at top right, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.footer-brand i {
  font-size: var(--font-size-2xl);
  color: var(--accent);
}

.footer-brand .brand-name {
  background: linear-gradient(135deg, #60a5fa 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.15em;
  font-weight: 800;
  font-size: var(--font-size-2xl);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.social-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.social-link i {
  position: relative;
  z-index: 1;
}

.social-link:hover {
  transform: translateY(-4px);
  border-color: rgba(102, 126, 234, 0.5);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.social-link:hover::before {
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--gray-400);
  font-size: var(--font-size-sm);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    background: var(--white);
    flex-direction: column;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: left var(--transition-base);
    gap: var(--spacing-md);
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-lg);
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

  .carousel {
    height: 350px;
  }

  .carousel-content h3 {
    font-size: var(--font-size-xl);
  }

  .blog-grid {
    grid-template-columns: 1fr;
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .about-title {
    font-size: var(--font-size-2xl);
  }

  .about-stats {
    grid-template-columns: 1fr;
  }

  .contact-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-3xl: 3rem;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }

  .carousel {
    height: 300px;
  }

  .carousel-btn {
    width: 40px;
    height: 40px;
    font-size: var(--font-size-lg);
  }
}

/* ==================== WHATSAPP FLOATING BUTTON ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: var(--white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  animation: whatsappPulse 2s ease-in-out infinite;
}

.whatsapp-float::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.whatsapp-float i {
  position: relative;
  z-index: 1;
}

.whatsapp-float:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 12px 40px rgba(37, 211, 102, 0.6);
  animation: none;
}

.whatsapp-float:hover::before {
  opacity: 1;
}

.whatsapp-float:active {
  transform: translateY(-3px) scale(1.02);
}

@keyframes whatsappPulse {

  0%,
  100% {
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
  }

  50% {
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.6), 0 0 0 15px rgba(37, 211, 102, 0.1);
  }
}

/* Responsive WhatsApp */
@media (max-width: 768px) {
  .whatsapp-float {
    width: 56px;
    height: 56px;
    font-size: 28px;
    bottom: 20px;
    right: 20px;
  }
}