/* Professional Software Engineer Theme */
:root {
  --primary-color: #00d4ff;
  --secondary-color: #ff6b6b;
  --accent-color: #4ecdc4;
  --dark-bg: #0a0a0a;
  --darker-bg: #050505;
  --light-bg: #1a1a1a;
  --text-color: #ffffff;
  --text-muted: #cccccc;
  --border-color: #333333;
  --code-bg: #1e1e1e;
  --font-mono: 'Fira Code', 'Monaco', 'Consolas', monospace;
  --font-sans: 'Inter', 'Segoe UI', sans-serif;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--dark-bg);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navigation */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-title {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

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

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

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 20px 80px;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.hero-content {
  flex: 1;
  padding-right: 4rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-family: var(--font-mono);
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--dark-bg);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--dark-bg);
}

.hero-image {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.code-preview {
  background: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

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

.code-preview pre {
  margin: 0;
}

.code-preview code {
  color: var(--accent-color);
}

/* Skills Section */
.skills {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.skills h2 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--primary-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-card {
  background: var(--dark-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.skill-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.skill-card p {
  color: var(--text-muted);
}

/* Services Section */
.services-hero {
  padding: 120px 0 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.services-hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.services-hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.services {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 3rem;
}

.service-card {
  background: var(--dark-bg);
  padding: 2.5rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  text-align: center;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.service-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.service-card p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.service-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.service-features li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-color);
}

.service-features li:last-child {
  border-bottom: none;
}

.service-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.tech-tag {
  background: var(--code-bg);
  color: var(--accent-color);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  border: 1px solid var(--border-color);
}

/* Blog Section */
.blog-hero {
  padding: 120px 0 80px;
  text-align: center;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.blog-hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.blog-hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
}

.blog-posts {
  padding: 80px 0;
  background-color: var(--light-bg);
}

.post-card {
  background: var(--dark-bg);
  padding: 2rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
  transition: all 0.3s ease;
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
}

.post-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.post-card h2 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.post-card h2 a {
  color: var(--primary-color);
  text-decoration: none;
}

.post-card h2 a:hover {
  text-decoration: underline;
}

.post-excerpt {
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.read-more {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.read-more:hover {
  text-decoration: underline;
}

.post-full {
  background: var(--dark-bg);
  padding: 3rem;
  border-radius: 16px;
  border: 1px solid var(--border-color);
  margin-bottom: 3rem;
}

.post-header {
  margin-bottom: 2rem;
}

.post-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.post-content {
  line-height: 1.8;
}

.post-content h1,
.post-content h2,
.post-content h3 {
  color: var(--primary-color);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.post-content p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

.post-content pre {
  background: var(--code-bg);
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-color);
}

.post-content code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.post-content pre code {
  background: none;
  padding: 0;
}

.back-to-top {
  display: inline-block;
  margin-top: 2rem;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
}

.back-to-top:hover {
  text-decoration: underline;
}

/* CTA Section */
.cta {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--dark-bg);
}

.cta h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

/* Footer */
footer {
  padding: 2rem 0;
  background-color: var(--darker-bg);
  text-align: center;
  border-top: 1px solid var(--border-color);
}

footer p {
  color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 1rem 2rem;
  }

  .nav-links {
    margin-top: 1rem;
    gap: 1rem;
  }

  .hero {
    flex-direction: column;
    text-align: center;
    padding: 100px 0 60px;
  }

  .hero-content {
    padding-right: 0;
    margin-bottom: 3rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

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

  .service-card,
  .skill-card {
    padding: 1.5rem;
  }

  .post-full {
    padding: 2rem;
  }

  .post-header h1 {
    font-size: 2rem;
  }
}