/* ============================================================================
   ENHANCED MENTORBRIDGE AI STYLES
   ============================================================================ */

/* Custom Color Palette */
:root {
  --primary-blue: #2563eb;
  --primary-green: #10b981;
  --primary-purple: #8b5cf6;
  --primary-orange: #f59e0b;
  --primary-red: #ef4444;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: var(--primary-blue);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #1d4ed8;
}

/* Enhanced Body Background */
body {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

/* Glass Morphism Effect */
.glass-effect {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 20px;
}

/* Enhanced Navbar */
nav {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* Hero Section Enhancements */
#home {
  position: relative;
  overflow: hidden;
}

#home::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(180deg); }
}

/* Feature Cards Hover Effects */
.feature-card {
  transition: all 0.3s ease;
  border: 2px solid transparent;
  background: white;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.5s;
}

.feature-card:hover::before {
  left: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary-blue);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Gradient Backgrounds for Sections */
.bg-gradient-primary {
  background: var(--gradient-primary);
}

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

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

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

/* Animated Buttons */
.btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: white;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 12px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary::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: left 0.5s;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-success {
  background: var(--gradient-success);
  border: none;
  color: white;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
}

/* Mentor Cards Enhancement */
.mentor-card {
  transition: all 0.3s ease;
  border: 2px solid transparent;
  background: white;
  position: relative;
}

.mentor-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-purple);
  box-shadow: 0 15px 30px rgba(139, 92, 246, 0.2);
}

.mentor-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.mentor-card:hover::after {
  transform: scaleX(1);
}

/* Modal Enhancements */
.modal-overlay {
  backdrop-filter: blur(5px);
}

.modal-content {
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Form Input Enhancements */
.form-input {
  transition: all 0.3s ease;
  border: 2px solid #e2e8f0;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 14px;
}

.form-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  transform: translateY(-1px);
}

/* Loading Animations */
.loading-spinner {
  border: 3px solid #f3f4f6;
  border-top: 3px solid var(--primary-blue);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

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

/* Pulse Animation for CTAs */
.pulse-cta {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7);
  }
  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

/* Success Stories Carousel Effect */
.success-story {
  transition: all 0.3s ease;
  background: white;
  border-left: 4px solid transparent;
}

.success-story:hover {
  border-left-color: var(--primary-green);
  transform: translateX(10px);
}

/* Stats Counter Animation */
.stat-number {
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation Link Hover Effects */
.nav-link {
  position: relative;
  padding: 8px 0;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-blue);
  transition: width 0.3s ease;
}

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

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

/* Dropdown Menu Enhancements */
.dropdown-menu {
  animation: dropdownSlide 0.2s ease-out;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes dropdownSlide {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Progress Bar Styles */
.progress-bar {
  background: #e2e8f0;
  border-radius: 10px;
  overflow: hidden;
  height: 8px;
}

.progress-fill {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 10px;
  transition: width 0.5s ease;
}

/* Badge Styles */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-primary {
  background: var(--gradient-primary);
  color: white;
}

.badge-success {
  background: var(--gradient-success);
  color: white;
}

.badge-warning {
  background: var(--gradient-warning);
  color: white;
}

/* Avatar Styles */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: white;
  background: var(--gradient-primary);
}

.avatar-lg {
  width: 80px;
  height: 80px;
  font-size: 24px;
}

/* Card Hover Shadows */
.card-hover {
  transition: all 0.3s ease;
}

.card-hover:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: translateY(-5px);
}

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

/* Section Dividers */
.section-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
  margin: 60px auto;
  width: 80%;
  max-width: 200px;
}

/* Responsive Design Enhancements */
@media (max-width: 768px) {
  .feature-card:hover {
    transform: translateY(-5px);
  }
  
  .mentor-card:hover {
    transform: translateY(-3px);
  }
  
  .btn-primary:hover,
  .btn-success:hover {
    transform: translateY(-1px);
  }
}

/* Print Styles */
@media print {
  .no-print {
    display: none !important;
  }
  
  body {
    background: white !important;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --primary-blue: #0000ff;
    --primary-green: #008000;
    --primary-purple: #800080;
    --primary-orange: #ffa500;
    --primary-red: #ff0000;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
  body {
    background: #1a202c;
    color: #e2e8f0;
  }
  
  .feature-card,
  .mentor-card {
    background: #2d3748;
    color: #e2e8f0;
  }
  
  .form-input {
    background: #2d3748;
    border-color: #4a5568;
    color: #e2e8f0;
  }
  
  .form-input:focus {
    border-color: var(--primary-blue);
  }
}