:root {
  --primary: #0078D4;
  --accent: #1890FF;
  --dark: #222222;
  --light: #F4F4F4;
  --white: #FFFFFF;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: var(--light);
  color: var(--dark);
}

header {
  background: var(--white);
  border-bottom: 3px solid var(--primary);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 50px;
}

nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: var(--dark);
  font-weight: bold;
}

.hero {
  background: linear-gradient(to right, var(--primary), var(--accent));
  color: var(--white);
  text-align: center;
  padding: 4rem 2rem;
}

.section {
  padding: 3rem 2rem;
  background: var(--white);
}

.section:nth-of-type(even) {
  background: #e9f1fa;
}

.features {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.feature-box {
  flex: 1 1 300px;
  padding: 1.5rem;
  border-left: 4px solid var(--primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  background: var(--white);
}

.contact {
  text-align: center;
  padding: 2rem;
  background: var(--primary);
  color: var(--white);
}

.contact a {
  color: var(--white);
}

footer {
  text-align: center;
  padding: 1rem;
  background: #111;
  color: #ccc;
}