/* Base styles */
:root {
  --primary: #0d1117;
  --secondary: #161b22;
  --accent: #58a6ff;
  --text: #c9d1d9;
  --light-text: #8b949e;
}

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

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--primary);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1000px;
  margin: auto;
}

/* Header */
header {
  padding: 3rem 0 1rem;
  text-align: center;
  background-color: var(--secondary);
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

header p {
  font-size: 1.2rem;
  color: var(--light-text);
}

/* Navigation */
nav {
  background-color: #0d1117;
  padding: 1rem 0;
  border-bottom: 1px solid #21262d;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

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

nav a:hover {
  color: var(--accent);
}

/* Section styles */
.section {
  padding: 4rem 0;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

/* Projects */
.project-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  margin-top: 2rem;
}

.project-card {
  background-color: var(--secondary);
  padding: 1.5rem;
  border-radius: 8px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(88, 166, 255, 0.2);
}

.project-card h3 {
  margin-bottom: 0.5rem;
  color: var(--accent);
}

/* Contact */
.btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent);
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #4094e5;
}

/* Footer */
footer {
  padding: 2rem 0;
  text-align: center;
  background-color: var(--secondary);
  color: var(--light-text);
  font-size: 0.9rem;
}