body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f7f8fa;
  color: #1f2937;
}
header {
  background: white;
  padding: 18px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #e5e7eb;
}

header h1 {
  margin: 0;
  font-size: 26px;
}

nav {
  display: flex;
  gap: 28px;
}

nav a {
  color: #1f2937;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
}

nav a:hover {
  text-decoration: underline;
}
.hero {
  text-align: center;
  padding: 90px 20px;
}

.hero h2 {
  margin: 0 0 18px;
  font-size: 42px;
}

.hero p {
  margin: 0 auto 28px;
  max-width: 650px;
  font-size: 18px;
  line-height: 1.6;
  color: #4b5563;
}

.hero-button {
  display: inline-block;
  padding: 12px 22px;
  background: #111827;
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
}

.hero-button:hover {
  opacity: 0.9;
}
.skills {
  text-decoration: none;
color: inherit;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 40px 80px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-card {
  background: white;
  padding: 28px;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
}

.skill-card h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.skill-card p {
  margin: 0;
  color: #4b5563;
  line-height: 1.6;
}
.skill-card:hover {
  transform: translateY(-3px);
}