:root {
  --bg: #f7f8fa;
  --text: #1f2430;
  --muted: #5b6472;
  --accent: #2f6fed;
  --card: #ffffff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: linear-gradient(135deg, #2f6fed, #6b4cf6);
  color: #fff;
  padding: 64px 0 40px;
  text-align: center;
}

header h1 { font-size: 2.4rem; letter-spacing: 0.5px; }
.tagline { opacity: 0.9; margin-top: 8px; }

nav {
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

nav a:hover { border-color: #fff; }

main { padding: 48px 0; }

section {
  background: var(--card);
  border-radius: 12px;
  padding: 28px 32px;
  margin-bottom: 24px;
  box-shadow: 0 2px 12px rgba(20, 30, 60, 0.06);
}

section h2 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--accent);
}

section p + p { margin-top: 10px; }

.skills {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 8px;
}

.skills li {
  background: #eef2ff;
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--muted);
}

a { color: var(--accent); }
a:hover { text-decoration: none; }

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 24px 0 40px;
}

@media (max-width: 600px) {
  header { padding: 48px 0 32px; }
  header h1 { font-size: 1.8rem; }
  section { padding: 22px 20px; }
}