:root {
  --primary: #1f2933;
  --accent: #2563eb;
  --bg: #f9fafb;
  --text: #374151;
}

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

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

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

.navbar {
  background: white;
  border-bottom: 1px solid #e5e7eb;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
}

nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
}

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

.hero {
  background: linear-gradient(135deg, #1f2933, #111827);
  color: white;
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.services {
  padding: 4rem 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: white;
  padding: 1.8rem;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

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

.cta {
  background: white;
  padding: 3.5rem 0;
  text-align: center;
}

.cta h2 {
  margin-bottom: 0.5rem;
}

button {
  margin-top: 1.2rem;
  padding: 0.7rem 1.5rem;
  border: none;
  border-radius: 5px;
  background: var(--accent);
  color: white;
  font-size: 1rem;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

footer {
  background: #111827;
  color: #d1d5db;
  padding: 1.2rem 0;
  text-align: center;
  font-size: 0.9rem;
}

/* Mobile tweaks */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }
}