/* Developed by vilvapriyan */
/* Custom Dark Blue Theme for Sociocloud */
:root {
  /* Primary Colors - Blue Shades Only */
  --primary-color: #1e40af;
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --primary-lighter: #60a5fa;
  --primary-lightest: #93c5fd;
  
  /* Accent Colors - Blue Shades */
  --accent-color: #3b82f6;
  --accent-dark: #2563eb;
  --accent-light: #60a5fa;
  
  /* Background Colors */
  --bg-primary: #0f1629;
  --bg-secondary: #1e293b;
  --bg-dark: #0c1220;
  --bg-light: #f8fafc;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  
  /* Border Colors */
  --border-color: #1e40af;
  --border-light: #3b82f6;
  
  /* Shadow Colors */
  --shadow-primary: rgba(30, 64, 175, 0.3);
  --shadow-dark: rgba(30, 58, 138, 0.4);
  --shadow-blue: rgba(59, 130, 246, 0.2);
  
  /* Status Colors */
  --success-color: #3b82f6;
  --warning-color: #60a5fa;
  --danger-color: #1e40af;
  --info-color: #3b82f6;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  margin: 0;
  padding: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

.lead {
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.7;
}

/* Navigation Styles */
.navbar {
  background-color: var(--primary-color) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 20px var(--shadow-primary);
  transition: all 0.3s ease;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  padding: 0.75rem 1rem !important;
  transition: all 0.3s ease;
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: rgba(255, 255, 255, 0.9) !important;
  transform: translateY(-1px);
}

.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background-color: white;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

/* Button Styles */
.btn {
  font-weight: 600;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  transition: all 0.3s ease;
  border: none;
  text-transform: none;
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
  color: #ffffff;
  box-shadow: 0 4px 15px var(--shadow-blue);
}

.btn-accent:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--primary-light));
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow-blue);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
  transform: translateY(-2px);
}

.btn-outline-light {
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-dark) 50%, var(--primary-color) 100%);
  min-height: 50vh;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Add padding to prevent navbar overlap */
  transform: none !important;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(147, 197, 253, 0.1) 0%, transparent 50%);
  z-index: 1;
}

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

.text-accent {
  color: var(--accent-color) !important;
}

.hero-buttons .btn {
  margin-bottom: 1rem;
}

.hero-image img {
  border-radius: 1rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
}

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

/* Page Header */
.page-header {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-dark) 50%, var(--primary-color) 100%);
  padding: 4rem 0 2rem;
}

/* Card Styles */
.course-card,
.service-card,
.internship-card,
.auth-card {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-dark));
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px var(--shadow-primary);
  position: relative;
  overflow: hidden;
}

.course-card::before,
.service-card::before,
.internship-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary-lighter));
}

.course-card:hover,
.service-card:hover,
.internship-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px var(--shadow-dark);
  border-color: var(--primary-light);
}

.course-card img,
.course-card-small img {
  border-radius: 0.5rem;
  transition: transform 0.3s ease;
}

.course-card:hover img,
.course-card-small:hover img {
  transform: scale(1.05);
}

/* Feature Cards */
.feature-card {
  background: rgba(30, 41, 59, 0.5);
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: rgba(30, 41, 59, 0.8);
  transform: translateY(-3px);
}

.feature-icon,
.service-icon {
  padding: 1rem;
  background: rgba(59, 130, 246, 0.15);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* Form Styles */
.form-control,
.form-select {
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
  background-color: var(--bg-secondary);
  border-color: var(--primary-light);
  color: var(--text-primary);
  box-shadow: 0 0 0 0.2rem rgba(59, 130, 246, 0.25);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-label {
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.input-group-text {
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-color);
  color: var(--text-secondary);
}

/* Authentication Pages */
.auth-page {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-dark) 50%, var(--primary-color) 100%);
  min-height: 100vh;
  padding-top: 80px; /* Add padding to prevent navbar overlap */
}

.auth-section {
  padding: 2rem 0;
}

.auth-card {
  max-width: 100%;
  margin: 0 auto;
}

.password-strength .progress {
  background-color: var(--bg-dark);
}

.password-strength .progress-bar {
  transition: all 0.3s ease;
}

/* Team and Instructor Cards */
.team-card,
.instructor-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s ease;
}

.team-card:hover,
.instructor-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px var(--shadow-dark);
}

.team-img,
.instructor-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary-light);
  margin: 0 auto;
  display: block;
}

/* Pricing Cards */
.pricing-card {
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: 1rem;
  padding: 2rem;
  transition: all 0.3s ease;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary-light);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px var(--shadow-dark);
}

.pricing-card.featured:hover {
  transform: translateY(-5px) scale(1.05);
}

/* Process Steps */
.process-step {
  padding: 2rem 1rem;
}

.step-number .badge,
.step-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: #ffffff;
  font-weight: bold;
}

/* Benefit Cards */
.benefit-card {
  background: rgba(30, 41, 59, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  transition: all 0.3s ease;
}

.benefit-card:hover {
  background: rgba(30, 41, 59, 0.6);
  transform: translateY(-3px);
}

.benefit-icon {
  padding: 1rem;
  background: rgba(59, 130, 246, 0.15);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
}

/* Course Filters */
.filter-buttons {
  margin-bottom: 2rem;
}

.filter-btn.active {
  background-color: var(--primary-light);
  color: #ffffff;
  border-color: var(--primary-light);
}

/* Contact Information */
.contact-item {
  padding: 1rem;
  background: rgba(30, 41, 59, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: rgba(59, 130, 246, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Social Links */
.social-links a {
  transition: all 0.3s ease;
}

.social-links a:hover {
  color: var(--primary-light) !important;
  transform: translateY(-2px);
}

/* Accordion Styles */
.accordion-item {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem !important;
  margin-bottom: 0.5rem;
}

.accordion-button {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: none;
}

.accordion-button:not(.collapsed) {
  background-color: var(--bg-dark);
  color: var(--primary-light);
}

.accordion-button:focus {
  box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

.accordion-body {
  background-color: var(--bg-dark);
}

/* Breadcrumb */
.breadcrumb {
  background: none;
  padding: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: var(--text-muted);
}

/* Rating Stars */
.rating {
  display: flex;
  align-items: center;
}

.rating i {
  margin-right: 2px;
}

/* Course Meta */
.course-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.course-meta .badge {
  font-size: 0.75rem;
  padding: 0.375rem 0.75rem;
}

/* Lesson Items */
.lesson-item {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

/* Stats Section */
.stat-item {
  padding: 2rem 1rem;
}

.stat-item h3 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: var(--bg-dark) !important;
  border-top: 1px solid var(--border-color);
}

footer a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s ease;
}

footer a:hover {
  color: var(--accent-color);
}

/* Utility Classes */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-accent { background-color: var(--primary-light) !important; }
.bg-dark { background-color: var(--bg-dark) !important; }
.text-accent { color: var(--primary-light) !important; }
.border-accent { border-color: var(--primary-light) !important; }

/* Course Page Specific Styles */
.course-header {
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-dark) 100%);
  position: relative;
  overflow: hidden;
}

.course-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  z-index: 1;
}

.course-header .container {
  position: relative;
  z-index: 2;
}

.course-price-card {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-dark));
  border: 2px solid var(--primary-light);
  box-shadow: 0 15px 35px var(--shadow-blue);
}

.course-section {
  background: rgba(30, 41, 59, 0.3);
  border-radius: 1rem;
  padding: 2rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border-color);
}

.lesson-item {
  background: rgba(59, 130, 246, 0.05);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 0.5rem;
  border-left: 4px solid var(--primary-light);
}

.instructor-card {
  background: linear-gradient(145deg, var(--primary-dark), var(--bg-dark));
  border: 2px solid var(--primary-light);
  box-shadow: 0 10px 25px var(--shadow-blue);
}

.course-card-small {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.course-card-small:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px var(--shadow-blue);
  border-color: var(--primary-light);
}

/* Contact Page Specific Styles */
.contact-form {
  background: linear-gradient(145deg, var(--bg-secondary), var(--bg-dark));
  border: 2px solid var(--primary-light);
  box-shadow: 0 15px 35px var(--shadow-blue);
}

.contact-info {
  background: rgba(30, 41, 59, 0.5);
  border-radius: 1rem;
  padding: 2rem;
  border: 1px solid var(--border-color);
}

.contact-item {
  background: linear-gradient(145deg, var(--primary-dark), var(--bg-dark));
  border: 2px solid var(--primary-light);
  box-shadow: 0 8px 20px var(--shadow-blue);
  transition: all 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px var(--shadow-blue);
}

.contact-icon {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-lighter));
  color: #ffffff;
}

.social-media {
  background: rgba(59, 130, 246, 0.1);
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
}

.social-links .btn {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #ffffff;
}

.social-links .btn:hover {
  background: var(--primary-lighter);
  border-color: var(--primary-lighter);
  transform: translateY(-2px);
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 0.6s ease-in;
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

/* Loading States */
.btn.loading {
  position: relative;
  color: transparent;
}

.btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

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

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

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-color);
}

/* Selection Color */
::selection {
  background-color: var(--primary-light);
  color: #ffffff;
}

::-moz-selection {
  background-color: var(--primary-light);
  color: #ffffff;
}