/* Custom Variables */
:root {
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --accent-color: #28a745;
  --dark-color: #343a40;
  --light-color: #f8f9fa;
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #333;
  scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
  background: var(--light-color);
}

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

::-webkit-scrollbar-thumb:hover {
  background: #0056b3;
}

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

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark-color);
  margin-bottom: 1rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--secondary-color);
  margin-bottom: 2rem;
}

/* Utilities */
.section-padding {
  padding: 80px 0;
}

/* Navigation */
.navbar {
  background: rgba(0, 0, 0, 0.9) !important;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  padding: 1rem 0;
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95) !important;
  box-shadow: var(--box-shadow);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: white !important;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.8) !important;
  font-weight: 500;
  margin: 0 0.5rem;
  transition: var(--transition);
}

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

/* Hero Section */
.hero-section {
  min-height: 100vh;
  background: #0a2540;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://pixabay.com/get/g2457e7928f4a213ca3ec94f1699a798eec2dce60ad7d4035a641d0129000d7a711eeac8f0545b0c83d13ef6c8d2799dd6174f5feed570a446df9f7c201e706f6_1280.jpg') center/cover;
  opacity: 0.1;
  z-index: -1;
}

.hero-section h1 {
  color: white;
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  animation: fadeInUp 1s ease-out;
}

.hero-section .lead {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.3rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-buttons {
  animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons .btn {
  margin-right: 1rem;
  padding: 12px 30px;
  font-weight: 600;
  border-radius: 30px;
  transition: var(--transition);
}

.hero-buttons .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.profile-img {
  width: 350px;
  height: 400px;
  object-fit: cover;
  border: 5px solid rgba(255, 255, 255, 0.3);
  animation: float 3s ease-in-out infinite;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-down {
  color: white;
  font-size: 2rem;
  animation: bounce 2s infinite;
  text-decoration: none;
}

/* About Section */
.about-content {
  padding: 2rem 0;
}

.about-content h3 {
  color: var(--dark-color);
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.about-content p {
  font-size: 1.1rem;
  color: var(--secondary-color);
  line-height: 1.8;
}

.about-stats {
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1rem;
  background: white;
  border-radius: 10px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.stat-item h4 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-family: Arial, sans-serif; /* Or another readable font */
  letter-spacing: 0.5px;
}

.about-image img {
  border-radius: 15px;
  box-shadow: var(--box-shadow);
}

/* Skills Section */
.skill-category {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--box-shadow);
  margin-bottom: 2rem;
  transition: var(--transition);
}

.skill-category:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.skill-category h4 {
  color: var(--dark-color);
  border-bottom: 2px solid var(--primary-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1.5rem;
}

.skill-item {
  margin-bottom: 1.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.skill-bar {
  height: 8px;
  background: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
}

.skill-progress {
  height: 100%;
  background: var(--gradient-primary);
  width: 0%;
  transition: width 1.5s ease-in-out;
  border-radius: 4px;
}

/* Timeline */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary-color);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  width: 100%;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: 0;
  margin-right: 50%;
  padding-right: 2rem;
  text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: 50%;
  margin-right: 0;
  padding-left: 2rem;
  text-align: left;
}

.timeline-marker {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: var(--box-shadow);
  z-index: 10;
}

.timeline-content {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
}

.timeline-content:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.timeline-content h4 {
  color: var(--dark-color);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.timeline-content h5 {
  color: var(--primary-color);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.timeline-date {
  color: var(--secondary-color);
  font-size: 0.9rem;
  font-weight: 600;
}

.timeline-list {
  list-style: none;
  padding: 0;
}

.timeline-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.timeline-list li::before {
  content: '▶';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary-color);
}

/* Project Cards */
.project-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  height: 100%;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.project-header {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

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

.project-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}

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

.project-overlay h4 {
  color: white;
  font-size: 1.3rem;
  text-align: center;
}

.project-content {
  padding: 1.5rem;
}

.project-content p {
  color: var(--secondary-color);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-tag {
  background: var(--gradient-primary);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Education & Achievements */
.education-item,
.achievement-item {
  background: white;
  padding: 1.5rem;
  border-radius: 15px;
  box-shadow: var(--box-shadow);
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.education-item:hover,
.achievement-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.education-content h4,
.achievement-content h5 {
  color: var(--dark-color);
  margin-bottom: 0.5rem;
}

.education-content h5 {
  color: var(--primary-color);
}

.education-date {
  color: var(--secondary-color);
  font-size: 0.9rem;
  font-weight: 600;
}

.achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.achievement-icon {
  background: var(--gradient-primary);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.achievement-content a {
  color: var(--primary-color);
  text-decoration: none;
}

.achievement-content a:hover {
  text-decoration: underline;
}

/* Contact Section */
.contact-item {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
}

.contact-icon {
  background: var(--gradient-primary);
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 1rem;
}

.contact-content h5 {
  color: white;
  margin-bottom: 0.5rem;
}

.contact-content p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0;
}

.social-links {
  margin-top: 3rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: 50%;
  margin: 0 0.5rem;
  font-size: 1.2rem;
  text-decoration: none;
  transition: var(--transition);
}

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

/* Footer */
.footer {
  background: #000;
  color: rgba(255, 255, 255, 0.7);
  padding: 2rem 0;
  text-align: center;
}

/* 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);
  }
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-section h1 {
    font-size: 2.5rem;
  }
  
  .hero-section .lead {
    font-size: 1.1rem;
  }
  
  .profile-img {
    width: 280px;
    height: 280px;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item .timeline-content {
    margin-left: 60px !important;
    margin-right: 0 !important;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
    text-align: left !important;
  }
  
  .timeline-marker {
    left: 30px;
  }
  
  .project-tech {
    justify-content: center;
  }
  
  .hero-buttons .btn {
    margin-bottom: 1rem;
    display: block;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .section-padding {
    padding: 60px 0;
  }
  
  .hero-section h1 {
    font-size: 2rem;
  }
  
  .profile-img {
    width: 240px;
    height: 240px;
  }
  
  .skill-category,
  .timeline-content,
  .project-card {
    padding: 1rem;
  }
  
  .contact-item {
    padding: 1.5rem;
  }
}