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

:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --secondary: #22d3ee;
  --dark: #0f172a;
  --darker: #020617;
  --card: #1e293b;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
  --gradient-1: #6366f1;
  --gradient-2: #22d3ee;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--dark);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */
.navbar {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 10px 20px;
  border-radius: 8px;
  transition: background 0.3s ease !important;
}

.nav-cta:hover {
  background: var(--primary-hover) !important;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  background: radial-gradient(
    ellipse at top,
    rgba(99, 102, 241, 0.15) 0%,
    transparent 50%
  );
}

.hero-container {
  max-width: 900px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 40px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--card);
  border-color: var(--primary);
}

.btn-large {
  padding: 18px 36px;
  font-size: 1.1rem;
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--secondary);
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text);
}

/* About Section */
.about-section {
  background: var(--darker);
}

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

.about-text p {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 48px;
  line-height: 1.8;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
  line-height: 1.6;
}

.service-link {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap 0.3s ease;
}

.service-link:hover {
  gap: 12px;
}

/* Projects Section */
.projects-section {
  background: var(--darker);
}

.projects-category {
  margin-bottom: 60px;
}

.projects-category:last-child {
  margin-bottom: 0;
}

.projects-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.projects-subtitle i {
  color: var(--secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.project-image {
  height: 140px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark);
  padding: 16px;
}

.project-image img {
  max-width: 120px;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
  border-radius: 12px;
}

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

.project-content {
  padding: 24px;
}

.project-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}

.project-content p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.project-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.project-link {
  color: var(--secondary);
  font-size: 0.875rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.project-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--dark);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.skill-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  color: var(--text);
  transition: all 0.3s ease;
}

.skill-item:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-3px);
}

.skill-item i {
  color: var(--secondary);
  font-size: 1.1rem;
}

.skill-item:hover i {
  color: white;
}

/* Experience Section */
.experience-section {
  background: var(--darker);
}

.experience-grid {
  display: grid;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.experience-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.experience-card:hover {
  border-color: var(--primary);
}

.experience-header {
  margin-bottom: 16px;
}

.experience-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.company {
  display: block;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.period {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.experience-card > p {
  color: var(--text-muted);
  line-height: 1.7;
}

/* Contact Section */
.contact-section {
  background: linear-gradient(
    135deg,
    rgba(99, 102, 241, 0.1) 0%,
    rgba(34, 211, 238, 0.05) 100%
  );
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-text h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.contact-text > p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
}

.contact-item i {
  width: 40px;
  height: 40px;
  background: var(--card);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
}

.contact-item a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact-item a:hover {
  color: var(--primary);
}

/* Footer */
.footer {
  background: var(--darker);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-muted);
  margin-top: 12px;
  max-width: 300px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--text);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--darker);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    display: flex;
  }

  .nav-links.mobile-active {
    transform: translateY(0);
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero {
    padding: 140px 20px 60px;
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .contact-info {
    align-items: center;
  }

  .footer-content {
    flex-direction: column;
    gap: 32px;
    text-align: center;
  }

  .footer-brand p {
    max-width: none;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .section {
    padding: 60px 0;
  }
}

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

.hero-content,
.section-header,
.service-card,
.project-card,
.experience-card {
  animation: fadeInUp 0.6s ease-out forwards;
}