:root {
  --bg-primary: #0b0f14;
  --bg-secondary: #121821;
  --bg-tertiary: #1a222e;

  --text-primary: #e6edf3;
  --text-secondary: #9aa4af;

  --accent: #00D9FF;
  --accent-secondary: #FF6B35;
  --accent-hover: #FF8C42;
  --accent-dark: #00A8CC;
  --accent-light: #FFD700;

  --border: #2a3441;
  --glow-cyan: rgba(0, 217, 255, 0.3);
  --glow-orange: rgba(255, 107, 53, 0.3);
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding-top: 70px;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: linear-gradient(90deg, var(--bg-secondary) 0%, rgba(255, 107, 53, 0.05) 100%);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  border-bottom: 2px solid var(--accent-secondary);
  box-shadow: 0 0 20px var(--glow-orange);
  transition: transform 0.3s ease;
  box-sizing: border-box;
}

.navbar.hidden {
  transform: translateY(-100%);
}

.navbar-left {
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--accent-secondary);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar a {
  color: var(--text-primary);
  text-decoration: none;
  margin-left: 1rem;
  transition: color 0.2s ease;
}

.navbar a:hover {
  color: var(--accent-secondary);
  text-shadow: 0 0 10px var(--accent-secondary);
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(0, 217, 255, 0.1) 100%);
  border-radius: 16px;
  margin: 2rem auto;
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--accent-secondary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  color: var(--text-secondary);
}

.profile-image {
  max-width: 150px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 2px solid var(--accent-secondary);
  box-shadow: 0 0 20px var(--glow-orange);
  margin-top: 1rem;
  object-fit: cover;
}

.buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-hover) 100%);
  color: white;
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s ease;
  border: 1px solid var(--accent-secondary);
  box-shadow: 0 0 15px var(--glow-orange);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--glow-cyan), 0 0 40px var(--glow-orange);
  border-color: var(--accent);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  transition: 0.2s ease;
  border: 1px solid var(--accent-secondary);
}

.btn-secondary:hover {
  background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-hover) 100%);
  color: white;
  box-shadow: 0 0 15px var(--glow-orange);
}

section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

section h2 {
  background: linear-gradient(90deg, var(--accent-secondary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

section h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent));
  border-radius: 2px;
}

.skills, .project-grid, .timeline {
  display: grid;
  gap: 1.5rem;
}

.skills {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

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

.card {
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(0, 217, 255, 0.05) 100%);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent));
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-secondary);
  box-shadow: 0 10px 30px var(--glow-orange), 0 5px 15px var(--glow-cyan);
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.1) 0%, rgba(0, 217, 255, 0.1) 100%);
}

.card h3 {
  background: linear-gradient(90deg, var(--accent-secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
  border-top: 2px solid var(--accent-secondary);
  margin-top: 2rem;
}

.navigation {
  margin-top: 2rem;
}

.resume {
  text-align: center;
  padding: 4rem 2rem;
}

.resume .btn-primary {
  margin-top: 1rem;
}

.contact-card {
  max-width: 600px;
  margin: 0 auto;
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  text-align: center;
}

.contact-item h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.contact-link {
  color: var(--accent-secondary);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  transition: 0.3s ease;
  display: inline-block;
  border: 2px solid var(--accent-secondary);
  background: rgba(255, 107, 53, 0.1);
}

.contact-link:hover {
  color: white;
  background: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-hover) 100%);
  box-shadow: 0 0 15px var(--glow-orange);
  transform: translateY(-2px);
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    align-items: flex-start;
  }

  .navbar-left {
    width: 100%;
    font-size: 1.1rem;
  }

  .navbar-right {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .navbar a {
    margin-left: 0;
    padding: 0.5rem 0;
    display: block;
    font-size: 0.95rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero p {
    font-size: 1rem;
  }

  section h2 {
    font-size: 1.8rem;
  }

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

  .skills {
    grid-template-columns: repeat(2, 1fr);
  }

  section {
    padding: 2rem 1rem;
  }
}