:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --light-gray: #ecf0f1;
  --dark-gray: #34495e;
  --text-color: #2c3e50;
  --border-radius: 10px;
  --box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  scroll-behavior: smooth;
}

/* Navbar Enhancements */
.navbar {
  background: linear-gradient(135deg, var(--primary-color), var(--dark-gray)) !important;
  box-shadow: var(--box-shadow);
  backdrop-filter: blur(10px);
  padding: 0.2rem 1rem !important;
  min-height: 40px;
}

.navbar-brand {
  font-weight: bold;
  font-size: 1.1rem;
  color: white !important;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8) !important;
  font-weight: 500;
  padding: 0.2rem 0.6rem !important;
  border-radius: var(--border-radius);
  transition: var(--transition);
  margin: 0 0.05rem;
  font-size: 0.85rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: white !important;
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Section Styling */
.container-fluid {
  padding: 3rem 2rem !important;
}

.bg-body-secondary {
  background: linear-gradient(135deg, #f8f9fa, #e9ecef) !important;
}

.bg-body-tertiary {
  background: linear-gradient(135deg, #ffffff, #f8f9fa) !important;
}

/* Home Section */
#home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--secondary-color), #9b59b6) !important;
  color: white;
  padding-top: 60px !important;
}

#home h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

#home h5 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

#home .img-thumbnail {
  border-radius: 50%;
  border: 5px solid white;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  max-width: 300px;
  width: 100%;
  height: auto;
}

#home .img-thumbnail:hover {
  transform: scale(1.05);
}

#home .btn-primary {
  background: var(--accent-color);
  border: none;
  padding: 12px 30px;
  font-size: 1.1rem;
  border-radius: 25px;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

#home .btn-primary:hover {
  background: #c0392b;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Section Headers */
h1 {
  color: var(--primary-color);
  font-weight: 700;
  border-bottom: 3px solid var(--secondary-color);
  padding-bottom: 0.5rem;
  margin-bottom: 3rem !important;
}

h2, h3 {
  color: var(--dark-gray);
  font-weight: 600;
}

/* Education & Experience Sections */
.row.mb-5 {
  background: white;
  border-radius: var(--border-radius);
  padding: 2rem;
  margin-bottom: 3rem !important;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.row.mb-5:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.row.mb-5 img {
  border-radius: var(--border-radius);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 200px;
  height: auto;
  object-fit: contain;
}

/* Cards Enhancement */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  overflow: hidden;
  margin-bottom: 2rem;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.card-img-top {
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

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

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.card .btn-primary {
  background: var(--secondary-color);
  border: none;
  border-radius: 20px;
  padding: 8px 20px;
  transition: var(--transition);
}

.card .btn-primary:hover {
  background: #2980b9;
  transform: translateY(-2px);
}

/* Certificates Section */
#certs .img-thumbnail {
  border-radius: var(--border-radius);
  transition: var(--transition);
  max-width: 200px;
  width: 100%;
  height: auto;
}

#certs .img-thumbnail:hover {
  transform: scale(1.1);
}

/* Contact Section */
#contact {
  background: linear-gradient(135deg, var(--primary-color), var(--dark-gray)) !important;
  color: white;
}

#contact h1 {
  color: white;
  border-bottom-color: var(--secondary-color);
}

#contact p {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

#contact i {
  margin-right: 0.5rem;
  color: var(--secondary-color);
}

#contact a {
  color: white !important;
  text-decoration: none;
  transition: var(--transition);
}

#contact a:hover {
  color: var(--secondary-color) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container-fluid {
    padding: 2rem 1rem !important;
  }
  
  #home {
    padding-top: 70px !important;
  }
  
  .navbar {
    padding: 0.15rem 0.5rem !important;
    min-height: 35px;
  }
  
  .navbar-brand {
    font-size: 1rem;
  }
  
  .navbar-nav .nav-link {
    padding: 0.25rem 0.5rem !important;
    font-size: 0.8rem;
  }
  
  .row.mb-5 {
    text-align: center;
  }
  
  .card-img-top {
    height: 200px;
  }
}

@media (max-width: 576px) {
  #home h1 {
    font-size: 2rem;
  }
  
  #home .img-thumbnail {
    max-width: 250px;
  }
  
  .card-img-top {
    height: 180px;
  }
}

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

.card, .row.mb-5 {
  animation: fadeInUp 0.6s ease-out;
}

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

/* Loading animation for images */
img {
  transition: opacity 0.3s ease;
}

img:not([src]) {
  opacity: 0;
}

/* Utility classes */
.text-gradient {
  background: linear-gradient(135deg, var(--secondary-color), #9b59b6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn-custom {
  background: linear-gradient(135deg, var(--secondary-color), #9b59b6);
  border: none;
  color: white;
  padding: 10px 25px;
  border-radius: 25px;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.btn-custom:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

@keyframes increaseFontSize {
  from {}
  to {font-size: 20px;}
}


.home_columns {
    background-color: gray;
}