:root {
    --bg: #fafafa;
    --panel: #ffffff;
    --ink: #222222;
    --muted: #777777;
    --accent: #3b82f6;
    --line: #e0e0e0;
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; }
  body { margin: 0; font-family: 'Arial', sans-serif; background: var(--bg); color: var(--ink); display: flex; flex-direction: column; min-height: 100vh; }

  /* Header layout */
  header { background: var(--panel); border-bottom: 1px solid var(--line); padding: 20px 30px; }
  .brand { display: flex; align-items: center; gap: 15px; justify-content: center; }
  .logo { width: 45px; height: 45px; border-radius: 12px; background: var(--accent); color: #fff; display: grid; place-items: center; font-weight: bold; font-size: 1.4rem; }
  .brand .name { font-size: 1.25rem; font-weight: 600; letter-spacing: .5px; }
  .brand .tag { color: var(--muted); font-size: 0.9rem; }

  /* Navigation bar */
  nav { display: flex; justify-content: center; gap: 24px; margin-top: 12px; }
  nav a { color: var(--ink); text-decoration: none; font-weight: 600; transition: color 0.3s ease-in-out; padding: 6px 12px; border-radius: 12px; }
  nav a:hover { color: var(--accent); background-color: var(--line); }

  /* Main content section */
  main { flex: 1; padding: 40px 30px; display: grid; gap: 40px; max-width: 1200px; margin: 0 auto; }

  /* Hero Section */
  .hero { text-align: center; background: var(--accent); color: #fff; padding: 60px 20px; border-radius: 12px; }
  .hero h1 { font-size: clamp(2.2rem, 5vw, 3rem); margin-bottom: 16px; }
  .hero p { color: #e5e7eb; max-width: 800px; margin: 0 auto; font-size: 1rem; }

  /* Service cards */
  .services { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 24px 0; }
  .service-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05); transition: transform 0.3s ease-in-out; }
  .service-card:hover { transform: translateY(-8px); }
  .service-card h3 { color: var(--accent); margin-bottom: 12px; font-size: 1.1rem; }
  .service-card p { color: var(--muted); font-size: 1rem; text-align: center; }

  /* Contact banner */
  .contact { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 32px 20px; background: #e0f7fa; border-radius: 12px; text-align: center; }
  .contact a { text-decoration: none; color: var(--accent); font-weight: 600; border: 2px solid var(--accent); padding: 12px 24px; border-radius: 999px; }

  /* Footer */
  footer { background: var(--panel); text-align: center; padding: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }

  /* Responsive design */
  @media (max-width: 768px) {
    .services { grid-template-columns: 1fr 1fr; }
  }
  @media (max-width: 480px) {
    .services { grid-template-columns: 1fr; }
  }