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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Nav */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e7eb;
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo a {
  font-size: 24px;
  font-weight: 700;
  color: #2563eb;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-logo a:hover {
  color: #1d4ed8;
}

.nav-menu {
  display: flex;
  gap: 30px;
}

.nav-link {
  text-decoration: none;
  color: #374151;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #2563eb;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: #2563eb;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #374151;
  margin: 3px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #1f2937;
}

.highlight {
  color: #2563eb;
  position: relative;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #6b7280;
  margin-bottom: 20px;
  font-weight: 500;
}

.hero-description {
  font-size: 1.1rem;
  color: #4b5563;
  margin-bottom: 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

.btn {
  padding: 12px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  display: inline-block;
}

.btn-primary {
  background: #2563eb;
  color: white;
  border: 2px solid #2563eb;
}

.btn-primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: #2563eb;
  border: 2px solid #2563eb;
}

.btn-secondary:hover {
  background: #2563eb;
  color: white;
  transform: translateY(-2px);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.profile-card {
  background: white;
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  transform: rotate(5deg);
  transition: transform 0.3s ease;
}

.profile-card:hover {
  transform: rotate(0deg);
}

.profile-avatar {
  width: 200px;
  height: 200px;
  margin: 0 auto;
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 700;
  color: white;
}

/* Section Styles */
section {
  padding: 80px 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  color: #1f2937;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 60px;
  height: 4px;
  background: #2563eb;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

/* About Section */
.about {
  background: #f9fafb;
}

.about-text {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text p {
  font-size: 1.1rem;
  color: #4b5563;
  margin-bottom: 40px;
  line-height: 1.8;
}

.about-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.detail-item {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  text-align: left;
}

.detail-item h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #2563eb;
  margin-bottom: 10px;
}

.detail-item p {
  color: #6b7280;
  margin-bottom: 5px;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.skill-category {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.skill-category:hover {
  transform: translateY(-5px);
}

.skill-category h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 20px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  background: #e0f2fe;
  color: #0277bd;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.skill-tag:hover {
  background: #2563eb;
  color: white;
  transform: scale(1.05);
}

/* Experience Section */
.experience {
  background: #f9fafb;
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e5e7eb;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 80px;
}

.timeline-marker {
  position: absolute;
  left: 20px;
  top: 0;
  width: 20px;
  height: 20px;
  background: #2563eb;
  border-radius: 50%;
  border: 4px solid white;
  box-shadow: 0 0 0 4px #e5e7eb;
}

.timeline-content {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.timeline-content h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 5px;
}

.timeline-content h4 {
  font-size: 1.1rem;
  color: #2563eb;
  margin-bottom: 10px;
}

.timeline-date {
  color: #6b7280;
  font-size: 0.9rem;
  font-weight: 500;
  display: block;
  margin-bottom: 15px;
}

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

.timeline-content li {
  color: #4b5563;
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.timeline-content li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: #2563eb;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 30px;
}

.project-card {
  background: white;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 15px;
}

.project-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #1f2937;
}

.project-links {
  display: flex;
  gap: 10px;
}

.project-link {
  color: #2563eb;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.project-link:hover {
  color: #1d4ed8;
}

.project-description {
  color: #4b5563;
  margin-bottom: 20px;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  background: #f3f4f6;
  color: #374151;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* Contact Section */
.contact {
  background: #f9fafb;
}

.contact-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-description {
  font-size: 1.1rem;
  color: #4b5563;
  margin-bottom: 40px;
  line-height: 1.7;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px 30px;
  background: white;
  border-radius: 12px;
  text-decoration: none;
  color: #374151;
  font-weight: 500;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  min-width: 300px;
}

.contact-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
  color: #2563eb;
}

.contact-icon {
  font-size: 1.2rem;
}

/* Footer */
.footer {
  background: #1f2937;
  color: #9ca3af;
  text-align: center;
  padding: 30px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu a {
    padding: 15px;
    display: block;
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
  }

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

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .timeline::before {
    left: 15px;
  }

  .timeline-item {
    padding-left: 50px;
  }

  .timeline-marker {
    left: 5px;
  }

  .contact-link {
    min-width: auto;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .section-title {
    font-size: 2rem;
  }

  section {
    padding: 60px 0;
  }

  .skill-category,
  .project-card,
  .detail-item,
  .timeline-content {
    padding: 20px;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    text-align: center;
    max-width: 250px;
  }
}

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

.hero-content > * {
  animation: fadeInUp 0.8s ease-out;
}

.hero-text > * {
  animation-delay: 0.2s;
}

.hero-image {
  animation-delay: 0.4s;
}