:root {
  --primary-color: #ffc107;
  --bg-dark: #1a1a1a;
  --bg-dark-alt: #2d2d2d;
  --bg-light: #f5f5f5;
  --bg-light-alt: #ffffff;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --border-color: #404040;
}

html.light-mode {
  --bg-dark: #ffffff;
  --bg-dark-alt: #f9f9f9;
  --bg-light: #1a1a1a;
  --bg-light-alt: #2d2d2d;
  --text-primary: #1a1a1a;
  --text-secondary: #666666;
  --border-color: #e0e0e0;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  transition: background-color 0.3s, color 0.3s;
}

/* Navbar Styles */
#navbar {
  background-color: var(--bg-dark-alt) !important;
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s;
}

.logo-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-dark);
  font-weight: bold;
}

.navbar-brand {
  font-size: 1.5rem;
  color: var(--text-primary) !important;
}

.nav-link {
  color: var(--text-secondary) !important;
  transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color) !important;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-dark-alt) 0%, var(--bg-dark) 100%);
  padding: 80px 0 !important;
  text-align: center;
}

.hero h1 {
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero p {
  color: var(--text-secondary);
  margin-bottom: 30px;
}

/* Features Section */
.features {
  background-color: var(--bg-dark);
  padding: 60px 0;
}

.feature-card {
  background-color: var(--bg-dark-alt);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(255, 193, 7, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.feature-card h5 {
  color: var(--text-primary);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9rem;
}

/* Areas Section */
.areas {
  background-color: var(--bg-dark-alt);
  padding: 60px 0;
}

.area-box {
  background-color: var(--bg-dark);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
  cursor: pointer;
}

.area-box:hover {
  background-color: var(--bg-dark-alt);
  border-color: var(--primary-color);
  transform: scale(1.05);
}

.area-box i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.area-box h5 {
  color: var(--text-primary);
  margin-bottom: 10px;
}

.area-box p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.9rem;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, var(--bg-dark-alt) 0%, var(--bg-dark) 100%);
  padding: 60px 0;
}

.cta h2 {
  color: var(--text-primary);
}

.cta .lead {
  color: var(--text-secondary);
}

/* Mentors Grid */
#mentors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 25px;
}

.mentor-card {
  background-color: var(--bg-dark-alt);
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
  cursor: pointer;
}

.mentor-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary-color);
  box-shadow: 0 15px 40px rgba(255, 193, 7, 0.15);
}

.mentor-avatar {
  font-size: 3rem;
  margin-bottom: 15px;
}

.mentor-card h3 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-weight: 600;
}

.mentor-category {
  color: var(--primary-color);
  font-size: 0.9rem;
  margin-bottom: 10px;
  font-weight: 600;
}

.mentor-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.mentor-contact a {
  display: inline-block;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: var(--bg-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  text-decoration: none;
}

.mentor-contact a:hover {
  background-color: var(--text-primary);
  transform: scale(1.1);
}

/* Project Cards */
#projects-grid, #workshops-grid, #resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.project-card, .workshop-card, .resource-card {
  background-color: var(--bg-dark-alt);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s;
  border: 1px solid var(--border-color);
}

.project-card:hover, .workshop-card:hover, .resource-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(255, 193, 7, 0.15);
}

.project-header, .workshop-header, .resource-header {
  padding: 20px;
  background-color: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
}

.project-title, .workshop-title, .resource-title {
  color: var(--text-primary);
  font-weight: 600;
  margin: 0;
}

.project-content, .workshop-content, .resource-content {
  padding: 20px;
}

.project-content p, .workshop-content p, .resource-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.project-details, .workshop-details, .resource-details {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 15px;
}

.project-btn, .workshop-btn, .resource-btn {
  background-color: var(--primary-color);
  color: var(--bg-dark);
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all 0.3s;
  font-weight: 600;
}

.project-btn:hover, .workshop-btn:hover, .resource-btn:hover {
  background-color: var(--text-primary);
  transform: scale(1.05);
}

/* About Section */
.about-content h2 {
  color: var(--primary-color);
  margin-top: 30px;
  margin-bottom: 15px;
}

.about-content p, .about-content li {
  color: var(--text-secondary);
  line-height: 1.8;
}

.about-content ul {
  padding-left: 20px;
}

.about-content li {
  margin-bottom: 10px;
}

.about-stats {
  display: grid;
  gap: 20px;
}

.stat-card {
  background-color: var(--bg-dark-alt);
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: all 0.3s;
}

.stat-card:hover {
  border-color: var(--primary-color);
  box-shadow: 0 10px 30px rgba(255, 193, 7, 0.1);
}

.stat-card h3 {
  color: var(--primary-color);
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.stat-card p {
  color: var(--text-secondary);
  margin: 0;
}

/* Contact Section */
.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-dark);
  font-size: 1.5rem;
}

.form-control {
  background-color: var(--bg-dark-alt);
  border-color: var(--border-color);
  color: var(--text-primary);
  transition: all 0.3s;
}

.form-control:focus {
  background-color: var(--bg-dark-alt);
  border-color: var(--primary-color);
  color: var(--text-primary);
  box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
}

.form-label {
  color: var(--text-primary);
}

/* Auth Page */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.auth-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  background-color: var(--bg-dark-alt);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.auth-card .card-body {
  color: var(--text-primary);
}

.auth-card h2 {
  color: var(--text-primary);
}

.auth-card p {
  color: var(--text-secondary);
}

.auth-card hr {
  border-color: var(--border-color);
}

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

footer h6 {
  color: var(--text-primary);
}

footer p {
  color: var(--text-secondary);
  margin: 0;
}

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

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

footer hr {
  border-color: var(--border-color);
}

/* Buttons */
.btn-warning {
  background-color: var(--primary-color) !important;
  color: var(--bg-dark) !important;
  border-color: var(--primary-color) !important;
}

.btn-warning:hover {
  background-color: #ffb300 !important;
  border-color: #ffb300 !important;
}

.btn-outline-light {
  border-color: var(--text-secondary);
  color: var(--text-secondary);
}

.btn-outline-light:hover {
  background-color: var(--text-secondary);
  border-color: var(--text-secondary);
  color: var(--bg-dark);
}

/* Filter Buttons */
.filter-btn {
  transition: all 0.3s;
}

.filter-btn.active {
  background-color: var(--primary-color) !important;
  color: var(--bg-dark) !important;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  #mentors-grid, #projects-grid, #workshops-grid, #resources-grid {
    grid-template-columns: 1fr;
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  nav.navbar .navbar-brand {
    font-size: 1.2rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 50px 0 !important;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .feature-card, .area-box {
    padding: 20px;
  }

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

  .mentor-card {
    padding: 20px;
  }
}