/* Custom CSS Variables */
:root {
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --dark-color: #212529;
  --light-color: #f8f9fa;
  --font-family: 'Inter', sans-serif;
}

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

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--dark-color);
  scroll-behavior: smooth;
}

/* Header Styles */
.navbar {
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95) !important;
  padding: 1rem 0;
}

.navbar-brand {
  color: var(--dark-color) !important;
}

.nav-link {
  color: var(--secondary-color) !important;
  font-weight: 500;
  transition: color 0.3s ease;
}

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

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding-top: 80px;
}

.hero-content {
  animation: fadeInUp 1s ease-out;
}

.profile-img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.95;
}

.hero-buttons {
  margin-bottom: 3rem;
}

.hero-buttons .btn {
  padding: 12px 30px;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;
}

.hero-buttons .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.bounce-arrow {
  font-size: 2rem;
  cursor: pointer;
  animation: bounce 2s infinite;
  transition: color 0.3s ease;
}

.bounce-arrow:hover {
  color: var(--primary-color);
}

/* Section Styles */
.section-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section-divider {
  width: 80px;
  height: 4px;
  background-color: var(--primary-color);
  margin: 0 auto 2rem;
  border-radius: 2px;
}

/* Feature Cards */
.feature-card {
  background: var(--light-color);
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e9ecef;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* Skills */
.progress {
  height: 8px;
  border-radius: 10px;
  background-color: #e9ecef;
}

.progress-bar {
  border-radius: 10px;
  transition: width 1s ease-in-out;
}

/* Portfolio Cards */
.portfolio-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
  position: relative;
  overflow: hidden;
  height: 250px;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-image img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 123, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-content {
  padding: 2rem;
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.portfolio-tags .badge {
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  border-radius: 20px;
}

/* Contact */
.contact-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  transition: background-color 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.contact-icon:hover {
  background-color: #fff;
  color: var(--primary-color);
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.form-control {
  border-radius: 10px;
  border: 2px solid #e9ecef;
  padding: 12px 20px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Footer */
.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-link {
  width: 50px;
  height: 50px;
  background-color: #495057;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  font-size: 1.2rem;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.social-link:hover {
  background-color: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

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

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-buttons .btn {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .profile-img {
    width: 150px;
    height: 150px;
  }
}

@media (max-width: 576px) {
  .hero-section {
    padding: 100px 0 50px;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

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

/* Custom button hover effects */
.btn-primary {
  background: linear-gradient(45deg, var(--primary-color), #0056b3);
  border: none;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(45deg, #0056b3, var(--primary-color));
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}

.btn-outline-primary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  transition: all 0.3s ease;
}

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