/* Modern GRII Website Styling */
:root {
  /* Vibrant Color Palette */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
  --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  
  /* Modern Colors */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #4facfe;
  --accent-orange: #ff6b35;
  --accent-blue: #4facfe;
  --accent-green: #43e97b;
  --accent-yellow: #f5a623;
  --success-color: #43e97b;
  --warning-color: #fa709a;
  --danger-color: #ff6b6b;
  
  /* Background Colors */
  --primary-bg: #f8fafc;
  --secondary-bg: #1e293b;
  --bg-primary: #f8fafc;
  --bg-secondary: #1e293b;
  --bg-dark: #0f172a;
  --bg-light: #ffffff;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Text Colors */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  --white: #ffffff;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: all 0.15s ease-in-out;
  --transition-normal: all 0.3s ease-in-out;
  --transition-slow: all 0.5s ease-in-out;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
}

/* Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Animation Classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s ease-out;
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s ease-out;
}

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

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease-out;
}

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

.bounce-in {
  opacity: 0;
  transform: translateY(50px) scale(0.8);
  transition: all 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.bounce-in.visible {
  opacity: 1 !important;
  transform: translateY(0) scale(1) !important;
}

/* Hover Animations */
.hover-lift {
  transition: all 0.3s ease;
}

.hover-lift:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.hover-scale {
  transition: all 0.3s ease;
}

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

.hover-glow {
  transition: all 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
}

/* Section Hover Animations */
.section-hover {
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.section-hover::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: all 0.6s ease;
}

.section-hover:hover::before {
  left: 100%;
}

.section-hover:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Card Hover Effects */
.card-hover {
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.card-hover:hover {
  transform: translateY(-12px) scale(1.05);
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.3);
}

.card-hover:hover .card-body {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(118, 75, 162, 0.08));
}

/* Enhanced Card Zoom Effect */
.card-zoom {
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
}

.card-zoom:hover {
  transform: translateY(-15px) scale(1.08);
  box-shadow: 0 35px 70px -15px rgba(0, 0, 0, 0.4);
  z-index: 10;
}

.card-zoom:hover .card-body {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
}

.card-zoom:hover .service-icon {
  transform: scale(1.3) rotate(10deg);
}

.card-zoom:hover .card-title {
  color: var(--primary-color);
  transform: translateY(-2px);
}

/* Button Hover Effects */
.btn-hover {
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-hover::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: all 0.5s ease;
}

.btn-hover:hover::before {
  left: 100%;
}

.btn-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Icon Hover Effects */
.icon-hover {
  transition: all 0.3s ease;
}

.icon-hover:hover {
  transform: scale(1.2) rotate(5deg);
  color: var(--primary-color);
}

/* Text Hover Effects */
.text-hover {
  transition: all 0.3s ease;
}

.text-hover:hover {
  color: var(--primary-color);
  transform: translateX(5px);
}

/* Image Hover Effects */
.img-hover {
  transition: all 0.4s ease;
}

.img-hover:hover {
  transform: scale(1.05) rotate(2deg);
  filter: brightness(1.1);
}

/* Index Logos Styling */
.index-logo-container {
  padding: 20px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}

.index-logo-container:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: var(--shadow-xl);
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
}

.index-logo {
  max-height: 60px;
  max-width: 120px;
  object-fit: contain;
  transition: all 0.3s ease;
}

.index-logo-container:hover .index-logo {
  transform: scale(1.1);
  filter: brightness(1.1);
}

/* Floating Animation */
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.float-animation {
  animation: float 6s ease-in-out infinite;
}

/* Pulse Animation */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pulse-animation {
  animation: pulse 2s ease-in-out infinite;
}

/* Rotate Animation */
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.rotate-animation {
  animation: rotate 20s linear infinite;
}

/* Gradient Animation */
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.gradient-animation {
  background-size: 200% 200%;
  animation: gradient-shift 3s ease infinite;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  font-weight: 400;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.display-1, .display-2, .display-3, .display-5, .display-6 {
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.display-4 {
  font-weight: 800;
  color: inherit;
}

.lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Custom Font Weights */
.fw-light { font-weight: 300 !important; }
.fw-normal { font-weight: 400 !important; }
.fw-medium { font-weight: 500 !important; }
.fw-semibold { font-weight: 600 !important; }
.fw-bold { font-weight: 700 !important; }
.fw-extrabold { font-weight: 800 !important; }
.fw-black { font-weight: 900 !important; }

/* Brand Logo */
.brand-logo {
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-weight: 800;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.brand-logo:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98) !important;
  box-shadow: var(--shadow-md);
}

.navbar-brand {
  transition: var(--transition-normal);
}

.navbar-brand:hover {
  transform: translateY(-1px);
}

.nav-link {
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  transition: var(--transition-normal);
  position: relative;
  padding: 0.75rem 1rem !important;
  border-radius: var(--radius-md);
  margin: 0 0.25rem;
}

.nav-link:hover {
  color: var(--primary-color) !important;
  background: rgba(102, 126, 234, 0.1);
  transform: translateY(-1px);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

/* Dropdown */
.dropdown-menu {
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
}

.dropdown-item {
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-weight: 600;
  transition: var(--transition-normal);
  margin-bottom: 0.25rem;
}

.dropdown-item:hover {
  background: var(--primary-gradient);
  color: white !important;
  transform: translateX(4px);
}

/* Buttons */
.btn {
  font-weight: 600;
  border-radius: var(--radius-lg);
  padding: 0.75rem 1.5rem;
  transition: var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

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

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

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

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

/* Hero Section */
.hero {
  background: var(--bg-gradient);
  color: var(--text-white);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.hero::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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

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

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: float 3s ease-in-out infinite;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-2xl);
  opacity: 0.9;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-actions {
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-image {
  position: relative;
  animation: fadeInRight 1s ease-out 0.6s both;
}

.book-cover {
  width: 100%;
  height: auto;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  transition: var(--transition-slow);
}

.book-cover:hover {
  transform: rotateY(10deg) rotateX(5deg) scale(1.05);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

/* Floating Elements */
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-element {
  position: absolute;
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.floating-element:nth-child(2) {
  top: 60%;
  right: 15%;
  animation-delay: 2s;
}

.floating-element:nth-child(3) {
  bottom: 30%;
  left: 20%;
  animation-delay: 4s;
}

/* Cards */
.card {
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
  overflow: hidden;
  background: var(--bg-light);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.card-body {
  padding: var(--spacing-xl);
}

/* Service Cards */
.service-card {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 2rem;
  color: white;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-xl);
}

/* Member Cards */
.member-card {
  background: var(--bg-light);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.member-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--secondary-gradient);
  transform: scaleX(0);
  transition: var(--transition-normal);
}

.member-card:hover::before {
  transform: scaleX(1);
}

.member-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.member-avatar {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #38b6ff 0%, #0cc0df 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.member-card:hover .member-avatar {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* Accordion */
.accordion-item {
  border: none;
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-normal);
}

.accordion-item:hover {
  box-shadow: var(--shadow-lg);
}

.accordion-button {
  background: var(--bg-light);
  border: none;
  padding: var(--spacing-lg);
  font-weight: 600;
  color: var(--text-primary);
  transition: var(--transition-normal);
}

.accordion-button:not(.collapsed) {
  background: var(--primary-gradient);
  color: white;
  box-shadow: none;
}

.accordion-button:focus {
  box-shadow: none;
  border: none;
}

.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23667eea'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transition: var(--transition-normal);
}

.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ffffff'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  transform: rotate(180deg);
}

.accordion-body {
  padding: var(--spacing-lg);
  background: var(--bg-light);
  color: var(--text-secondary);
  font-weight: 500;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: var(--text-white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--primary-gradient);
}

.footer h3, .footer h4 {
  color: var(--text-white);
  margin-bottom: var(--spacing-lg);
  font-weight: 700;
}

.footer p, .footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition-normal);
}

.footer a:hover {
  color: var(--primary-color);
  transform: translateX(4px);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-links a:hover {
  background: var(--primary-gradient);
  transform: translateY(-4px) scale(1.1);
  box-shadow: var(--shadow-lg);
}

/* Form Controls */
.form-control {
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-lg);
  padding: 0.75rem 1rem;
  font-weight: 500;
  transition: var(--transition-normal);
  background: var(--bg-light);
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
  background: var(--bg-light);
}

/* Badges */
.badge {
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
}

.bg-light {
  background: rgba(102, 126, 234, 0.1) !important;
  color: var(--primary-color) !important;
}

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

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

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
  }
  50% {
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.6);
  }
}

/* Utility Classes */
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-gradient-primary {
  background: var(--primary-gradient);
}

.bg-gradient-secondary {
  background: var(--secondary-gradient);
}

.bg-gradient-accent {
  background: var(--accent-gradient);
}

.shadow-custom {
  box-shadow: var(--shadow-xl);
}

.rounded-custom {
  border-radius: var(--radius-xl);
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .display-4 {
    font-size: 2.5rem;
  }
  
  .display-5 {
    font-size: 2rem;
  }
  
  .card-body {
    padding: var(--spacing-lg);
  }
  
  .service-icon, .member-avatar {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
  
  .member-avatar {
    width: 80px;
    height: 80px;
    font-size: 2rem;
  }
}

@media (max-width: 576px) {
  .hero {
    padding: 4rem 0;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }
  
  .card-body {
    padding: var(--spacing-md);
  }
}

/* Scroll Animations - Always Visible */
.fade-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: var(--transition-slow);
}

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

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 1s ease-in-out infinite;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-gradient);
}

/* Selection */
::selection {
  background: var(--primary-color);
  color: white;
}

/* Enhanced Responsive Design */

/* Large Desktop (1200px+) */
@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
  
  .hero-title {
    font-size: 4rem;
  }
  
  .display-4 {
    font-size: 3.5rem;
  }
  
  .navbar-brand img {
    height: 55px;
  }
}

/* Desktop (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
  .hero-title {
    font-size: 3.5rem;
  }
  
  .display-4 {
    font-size: 3rem;
  }
  
  .service-icon {
    width: 70px;
    height: 70px;
    font-size: 1.6rem;
  }
  
  .navbar-brand img {
    height: 50px;
  }
}

/* Tablet (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .display-4 {
    font-size: 2.8rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .service-icon {
    width: 65px;
    height: 65px;
    font-size: 1.4rem;
  }
  
  .member-avatar {
    width: 100px;
    height: 100px;
    font-size: 2.2rem;
  }
  
  .navbar-brand img {
    height: 45px;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
  
  .d-flex.gap-3 {
    flex-wrap: wrap;
  }
}

/* Mobile Large (576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .display-4 {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .service-icon {
    width: 60px;
    height: 60px;
    font-size: 1.3rem;
  }
  
  .member-avatar {
    width: 90px;
    height: 90px;
    font-size: 2rem;
  }
  
  .navbar-brand img {
    height: 40px;
  }
  
  .btn-lg {
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }
  
  .d-flex.gap-3 {
    flex-direction: column;
    gap: 0.5rem !important;
  }
  
  /* Book image mobile optimization */
  .hero img {
    max-width: 300px !important;
    height: auto;
  }
}

/* Extra Small Mobile (up to 375px) */
@media (max-width: 375px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .display-4 {
    font-size: 1.8rem;
  }
  
  .display-5 {
    font-size: 1.6rem;
  }
  
  .service-icon {
    width: 45px;
    height: 45px;
    font-size: 1rem;
  }
  
  .member-avatar {
    width: 60px;
    height: 60px;
    font-size: 1.6rem;
  }
  
  .navbar-brand img {
    height: 30px;
  }
  
  .btn-lg {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
  }
  
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}

/* Landscape Mobile */
@media (max-height: 500px) and (orientation: landscape) {
  .py-5 {
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
  }
  
  .min-vh-75 {
    min-height: 50vh !important;
  }
  
  .hero {
    padding: 2rem 0;
  }
}

::-moz-selection {
  background: var(--primary-color);
  color: white;
}

/* Header Mobile Responsive */
@media (max-width: 991px) {
  .navbar-brand {
    flex-direction: column;
    align-items: flex-start !important;
  }
  
  .navbar-brand img {
    margin-bottom: 0.25rem;
  }
  
  .navbar-nav {
    text-align: center;
    margin-top: 1rem;
  }
  
  .navbar-nav .nav-link {
    padding: 0.5rem 1rem;
    font-size: 1.1rem;
  }
  
  .navbar-nav .dropdown-menu {
    position: static !important;
    float: none;
    width: 100%;
    margin-top: 0.5rem;
    background-color: #f8f9fa;
    border: none;
    box-shadow: none;
  }
  
  .navbar-nav .dropdown-item {
    padding: 0.5rem 1rem;
    text-align: center;
  }
  
  .btn {
    width: 100%;
    margin-top: 0.5rem;
    justify-content: center;
  }
}

@media (max-width: 576px) {
  .navbar-brand {
    flex-direction: row;
    align-items: center !important;
  }
  
  .navbar-brand img {
    height: 35px;
    margin-right: 0.5rem;
    margin-bottom: 0;
  }
  
  .navbar-toggler {
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
  }
  
  .navbar-collapse {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #dee2e6;
  }
  
  .navbar-nav .nav-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-bottom: 1px solid #f8f9fa;
  }
  
  .navbar-nav .nav-link:last-child {
    border-bottom: none;
  }
  
  .btn {
    width: 100%;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
}

@media (max-width: 375px) {
  .navbar-brand img {
    height: 30px;
  }
  
  .navbar-toggler {
    padding: 0.2rem 0.4rem;
    font-size: 0.9rem;
  }
  
  .navbar-nav .nav-link {
    padding: 0.6rem 0.8rem;
    font-size: 0.95rem;
  }
  
  .btn {
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
  }
}

/* Book Image Mobile Optimization */
@media (max-width: 768px) {
  .hero img {
    max-width: 200px !important;
    height: auto !important;
    width: 100% !important;
    max-height: 300px !important;
    margin: 0 auto;
    display: block;
    object-fit: contain;
  }
  
  .hero .col-lg-6:last-child {
    text-align: center;
    margin-top: 2rem;
  }
}

@media (max-width: 576px) {
  .hero img {
    max-width: 180px !important;
    height: auto !important;
    width: 100% !important;
    max-height: 250px !important;
    margin: 0 auto;
    display: block;
    object-fit: contain;
  }
  
  .hero .col-lg-6:last-child {
    text-align: center;
    margin-top: 1.5rem;
  }
}

@media (max-width: 375px) {
  .hero img {
    max-width: 150px !important;
    height: auto !important;
    width: 100% !important;
    max-height: 200px !important;
    margin: 0 auto;
    display: block;
    object-fit: contain;
  }
  
  .hero .col-lg-6:last-child {
    text-align: center;
    margin-top: 1rem;
  }
}

/* Tablet book image optimization */
@media (min-width: 768px) and (max-width: 991px) {
  .hero img {
    max-width: 350px !important;
    height: auto;
  }
}

/* Comprehensive Mobile Responsive Fixes */
@media (max-width: 768px) {
  /* Hero Section Mobile */
  .hero {
    padding: 4rem 0 !important;
    text-align: center !important;
  }
  
  .min-vh-75 {
    min-height: 70vh !important;
  }
  
  .hero .row {
    flex-direction: column !important;
    align-items: center !important;
  }
  
  .hero .col-lg-6:first-child {
    margin-top: 0;
    margin-bottom: 2rem;
    order: 2;
  }
  
  .hero .col-lg-6:last-child {
    order: 1;
    margin-bottom: 2rem;
  }
  
  /* Hero section mobile layout fix */
  .hero .row > div {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
    margin-bottom: 1.5rem;
  }
  
  .hero .row > div:last-child {
    margin-bottom: 0;
  }
  
  /* Mobile text alignment */
  .hero .text-center {
    text-align: center !important;
  }
  
  .hero h1 {
    text-align: center !important;
    margin-bottom: 1.5rem !important;
  }
  
  .hero p {
    text-align: center !important;
    margin-bottom: 2rem !important;
  }
  
  .hero .d-flex {
    justify-content: center !important;
    flex-direction: column !important;
    align-items: center !important;
  }
  
  .hero .d-flex.gap-4 {
    flex-direction: column !important;
    align-items: center !important;
    gap: 1rem !important;
  }
  
  /* Mobile feature highlights center alignment */
  .hero .d-flex.gap-4 {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    flex-direction: column !important;
  }
  
  .hero .d-flex.gap-4 .d-flex {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    width: 100% !important;
  }
  
  .hero .d-flex.gap-4 .d-flex i {
    margin-right: 0.5rem !important;
  }
  
  /* Force mobile layout */
  .col-lg-6 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-lg-4 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-lg-3 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-lg-2 {
    width: 50% !important;
    max-width: 50% !important;
    flex: 0 0 50% !important;
  }
  
  /* Text Mobile */
  .display-4 {
    font-size: 2.2rem !important;
    line-height: 1.2;
  }
  
  .lead {
    font-size: 1.1rem !important;
    line-height: 1.6;
  }
  
  /* Buttons Mobile */
  .d-flex.gap-3 {
    flex-direction: column !important;
    gap: 0.75rem !important;
  }
  
  .btn-lg {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
  
  /* Features Mobile */
  .d-flex.gap-4 {
    flex-direction: column !important;
    gap: 0.5rem !important;
    align-items: flex-start !important;
  }
  
  /* Cards Mobile */
  .card-body {
    padding: 1.5rem !important;
  }
  
  .service-icon {
    width: 60px !important;
    height: 60px !important;
    font-size: 1.3rem !important;
  }
  
  .member-avatar {
    width: 80px !important;
    height: 80px !important;
    font-size: 1.8rem !important;
  }
  
  /* Sections Mobile */
  .py-5 {
    padding-top: 2.5rem !important;
    padding-bottom: 2.5rem !important;
  }
  
  .mb-5 {
    margin-bottom: 2rem !important;
  }
  
  /* Index Logos Mobile */
  .index-logo-container {
    height: 100px !important;
    padding: 15px !important;
  }
  
  .index-logo {
    max-height: 50px !important;
    max-width: 100px !important;
  }
  
  /* Testimonials Mobile */
  .member-avatar {
    width: 70px !important;
    height: 70px !important;
    font-size: 1.6rem !important;
  }
}

@media (max-width: 576px) {
  /* Extra Mobile Optimizations */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  
  .hero {
    padding: 3rem 0 !important;
    text-align: center !important;
  }
  
  .min-vh-75 {
    min-height: 60vh !important;
  }
  
  .display-4 {
    font-size: 1.8rem !important;
    text-align: center !important;
    margin-bottom: 1rem !important;
  }
  
  .display-5 {
    font-size: 1.6rem !important;
    text-align: center !important;
  }
  
  .lead {
    font-size: 1rem !important;
    text-align: center !important;
    margin-bottom: 1.5rem !important;
  }
  
  .btn-lg {
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
    width: 100%;
    margin-bottom: 0.5rem;
  }
  
  /* Mobile hero layout */
  .hero .d-flex.gap-3 {
    flex-direction: column !important;
    gap: 0.5rem !important;
    align-items: center !important;
  }
  
  .hero .d-flex.gap-4 {
    flex-direction: column !important;
    gap: 0.75rem !important;
    align-items: center !important;
  }
  
  /* Small mobile feature highlights center alignment */
  .hero .d-flex.gap-4 {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    flex-direction: column !important;
  }
  
  .hero .d-flex.gap-4 .d-flex {
    justify-content: center !important;
    align-items: center !important;
    text-align: center !important;
    width: 100% !important;
  }
  
  .hero .d-flex.gap-4 .d-flex i {
    margin-right: 0.5rem !important;
  }
  
  .service-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.1rem !important;
  }
  
  .member-avatar {
    width: 60px !important;
    height: 60px !important;
    font-size: 1.4rem !important;
  }
  
  .index-logo-container {
    height: 80px !important;
    padding: 10px !important;
  }
  
  .index-logo {
    max-height: 40px !important;
    max-width: 80px !important;
  }
  
  .card-body {
    padding: 1rem !important;
  }
  
  .py-5 {
    padding-top: 1.5rem !important;
    padding-bottom: 1.5rem !important;
  }
  
  /* Force single column layout */
  .col-md-6 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-md-3 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-md-4 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-sm-4 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  .col-sm-6 {
    width: 100% !important;
    max-width: 100% !important;
    flex: 0 0 100% !important;
  }
  
  /* Index logos mobile */
  .col-6 {
    width: 50% !important;
    max-width: 50% !important;
    flex: 0 0 50% !important;
  }
}

@media (max-width: 375px) {
  /* Very Small Mobile */
  .display-4 {
    font-size: 1.6rem !important;
  }
  
  .display-5 {
    font-size: 1.4rem !important;
  }
  
  .service-icon {
    width: 45px !important;
    height: 45px !important;
    font-size: 1rem !important;
  }
  
  .member-avatar {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.2rem !important;
  }
  
  .index-logo-container {
    height: 70px !important;
    padding: 8px !important;
  }
  
  .index-logo {
    max-height: 35px !important;
    max-width: 70px !important;
  }
}