/* GenZ-friendly styles for Agentic AI Systems Architect Course */

:root {
  --primary-color: #00ff8c; /* Neon green */
  --secondary-color: #6e00ff; /* Electric purple */
  --accent-color: #ff2a6d; /* Vibrant pink */
  --dark-bg: #121212; /* Dark mode background */
  --dark-bg-secondary: #1e1e1e; /* Slightly lighter dark background */
  --light-text: #ffffff;
  --light-text-secondary: rgba(255, 255, 255, 0.87);
  --glow-shadow: 0 0 15px rgba(0, 255, 140, 0.7);
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: 1px solid rgba(255, 255, 255, 0.1);
}

body {
  background-color: var(--dark-bg);
  color: var(--light-text);
  font-family: 'Inter', 'Roboto', sans-serif;
  line-height: 1.6;
  transition: all 0.3s ease;
}

/* Navbar styling */
.navbar {
  background-color: rgba(18, 18, 18, 0.8) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar-brand, .nav-link {
  color: var(--light-text) !important;
  transition: all 0.3s ease;
}

.navbar-brand:hover {
  color: var(--primary-color) !important;
  text-shadow: var(--glow-shadow);
}

.nav-link:hover {
  color: var(--primary-color) !important;
  text-shadow: var(--glow-shadow);
}

.navbar-toggler {
  border-color: var(--primary-color);
}

/* Hero section */
header.bg-dark {
  background: linear-gradient(135deg, var(--dark-bg), var(--dark-bg-secondary)) !important;
  border-bottom: 1px solid var(--primary-color);
  position: relative;
  overflow: hidden;
}

header.bg-dark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(110, 0, 255, 0.15), transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(0, 255, 140, 0.15), transparent 50%);
  z-index: 0;
}

header.bg-dark .container {
  position: relative;
  z-index: 1;
}

header h1 {
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(0, 255, 140, 0.3);
}

header .lead {
  color: var(--light-text-secondary);
  font-size: 1.2rem;
}

/* Breadcrumb styling */
.breadcrumb {
  background: transparent;
}

.breadcrumb-item a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

.breadcrumb-item a:hover {
  text-shadow: var(--glow-shadow);
}

/* Module cards */
.card {
  background-color: var(--card-bg);
  border: var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  margin-bottom: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 255, 140, 0.3);
  border-color: var(--primary-color);
}

.card-header {
  background-color: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 700;
}

.card-header.bg-primary {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color)) !important;
  color: var(--dark-bg);
}

.card-body {
  padding: 1.5rem;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  color: var(--dark-bg);
}

.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: all 0.6s ease;
}

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

.btn-primary:hover {
  box-shadow: 0 0 15px rgba(0, 255, 140, 0.5);
  transform: translateY(-2px);
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
  background: transparent;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  color: var(--dark-bg);
  box-shadow: 0 0 15px rgba(0, 255, 140, 0.5);
}

/* Sidebar */
.sidebar {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  border: var(--card-border);
  position: sticky;
  top: 2rem;
}

.sidebar h4 {
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 1rem;
}

.sidebar .nav-link {
  color: var(--light-text-secondary);
  padding: 0.5rem 0;
  transition: all 0.3s ease;
  border-left: 2px solid transparent;
  padding-left: 1rem;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
  color: var(--primary-color);
  border-left-color: var(--primary-color);
  background-color: rgba(0, 255, 140, 0.05);
}

/* Module content */
.module-content {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 2rem;
  border: var(--card-border);
}

.module-content h2 {
  color: var(--primary-color);
  font-weight: 800;
  margin-top: 2rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.module-content h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 50px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.module-content h3 {
  color: var(--light-text);
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
}

.module-content p {
  color: var(--light-text-secondary);
  margin-bottom: 1.5rem;
}

.module-content ul, .module-content ol {
  color: var(--light-text-secondary);
  margin-bottom: 1.5rem;
}

.module-content a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

.module-content a:hover {
  text-shadow: var(--glow-shadow);
}

/* Code blocks */
pre {
  background-color: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

code {
  color: var(--accent-color);
  font-family: 'Fira Code', monospace;
}

/* Alerts */
.alert {
  background-color: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
}

.alert-primary {
  background-color: rgba(0, 255, 140, 0.1);
  border-color: var(--primary-color);
}

.alert-info {
  background-color: rgba(110, 0, 255, 0.1);
  border-color: var(--secondary-color);
}

/* Tables */
.table {
  color: var(--light-text-secondary);
}

.table-bordered {
  border-color: rgba(255, 255, 255, 0.1);
}

.table-light, .table thead th {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--light-text);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
  background-color: var(--dark-bg-secondary) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--light-text-secondary);
}

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

footer a:hover {
  text-shadow: var(--glow-shadow);
}

/* Animations */
@keyframes glow {
  0% {
    box-shadow: 0 0 5px rgba(0, 255, 140, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(0, 255, 140, 0.8);
  }
  100% {
    box-shadow: 0 0 5px rgba(0, 255, 140, 0.5);
  }
}

.glow-effect {
  animation: glow 3s infinite;
}

/* Micro-interactions */
.nav-link, .btn, .card {
  position: relative;
  overflow: hidden;
}

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

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

/* Emoji usage */
.emoji-icon {
  font-size: 1.2em;
  margin-right: 0.3em;
  vertical-align: middle;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .sidebar {
    position: static;
    margin-bottom: 2rem;
  }
  
  .module-content {
    padding: 1.5rem;
  }
  
  header h1 {
    font-size: 2rem;
  }
}

/* AIVibes branding elements */
.aivibes-link {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
}

.aivibes-link:hover {
  text-shadow: var(--glow-shadow);
}

.aivibes-badge {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  color: var(--dark-bg);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  margin-left: 0.5rem;
  vertical-align: middle;
  transition: all 0.3s ease;
}

.aivibes-badge:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-shadow);
}

.aivibes-footer {
  background: linear-gradient(90deg, rgba(0, 255, 140, 0.1), rgba(110, 0, 255, 0.1));
  padding: 1rem 0;
  text-align: center;
  font-weight: 500;
}

/* Dark mode toggle */
.dark-mode-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--card-bg);
  border: var(--card-border);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1000;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.dark-mode-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--glow-shadow);
}

.dark-mode-toggle i {
  color: var(--primary-color);
  font-size: 1.5rem;
}