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

:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --bg-primary: #ffffff;
  --bg-secondary: #f7fafc;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-medium: 0 10px 25px rgba(0, 0, 0, 0.1);
  --shadow-heavy: 0 20px 40px rgba(0, 0, 0, 0.15);
  --border-radius: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-primary);
  background: var(--bg-secondary);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Navigation */
.nav {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  gap: 1rem;
}

.nav-item {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-decoration: none;
  transition: var(--transition);
  font-size: 1.1rem;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* Intro Section */
#intro {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  background: var(--bg-gradient);
  overflow: hidden;
}

#intro::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  animation: float 20s infinite linear;
}

@keyframes float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-60px); }
}

.intro-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 2rem;
}

.intro-content h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 0%, #f093fb 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  animation: slideInUp 1s ease-out;
}

.intro-content .subtitle {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  font-weight: 300;
  animation: slideInUp 1s ease-out 0.2s both;
}

.intro-content .description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: slideInUp 1s ease-out 0.4s both;
}

.cta-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: slideInUp 1s ease-out 0.6s both;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.btn-primary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-primary:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

/* About Section */
#about {
  padding: 8rem 2rem;
  background: var(--bg-primary);
  position: relative;
}

.section-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 4rem;
  background: var(--bg-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

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

.contact-info {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--bg-primary);
  border-radius: 15px;
  transition: var(--transition);
}

.contact-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-light);
}

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

.contact-details h4 {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.contact-details p {
  color: var(--text-light);
  font-size: 0.9rem;
}

.contact-details a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.contact-details a:hover {
  text-decoration: underline;
}

/* Projects Section */
#projects {
  padding: 8rem 2rem;
  background: var(--bg-secondary);
}

.projects-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: var(--shadow-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--bg-gradient);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-heavy);
}

.project-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

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

.project-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  transition: var(--transition);
}

.project-title:hover {
  color: var(--primary-color);
}

.project-description {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.tech-tag {
  background: rgba(102, 126, 234, 0.1);
  color: var(--primary-color);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.project-link:hover {
  transform: translateX(5px);
}

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

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav {
    top: 1rem;
    right: 1rem;
  }

  .nav-item {
    width: 45px;
    height: 45px;
    font-size: 1rem;
  }

  .about-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .contact-info {
    padding: 2rem;
  }

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

  .btn {
    width: 200px;
    justify-content: center;
  }

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

@media (max-width: 480px) {
  #intro,
  #about,
  #projects {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .intro-content {
    padding: 0 1rem;
  }

  .project-card {
    padding: 1.5rem;
  }
}