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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fafafa;
}

header {
  background: #1f2937;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo { font-weight: 700; font-size: 1.25rem; }

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
}

.nav-links a {
  color: #fff;
  text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: #60a5fa; }

.hero {
  text-align: center;
  padding: 5rem 1.5rem;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: #fff;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.15rem; margin-bottom: 2rem; }

.btn {
  display: inline-block;
  background: #fff;
  color: #3b82f6;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s;
}
.btn:hover { transform: translateY(-2px); }

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}
.section.alt { background: #f3f4f6; max-width: none; }
.section.alt > * { max-width: 1100px; margin-left: auto; margin-right: auto; }

.section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: #1f2937;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.card h3 { margin-bottom: 0.5rem; color: #3b82f6; }

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 500px;
  margin-top: 1.5rem;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  font-weight: 600;
  gap: 0.25rem;
}
.contact-form input,
.contact-form textarea {
  padding: 0.6rem;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font: inherit;
  font-weight: normal;
}
.contact-form .btn {
  background: #3b82f6;
  color: #fff;
  align-self: flex-start;
}

footer {
  background: #1f2937;
  color: #9ca3af;
  text-align: center;
  padding: 1.5rem;
}

@media (max-width: 600px) {
  .nav-links { gap: 0.75rem; font-size: 0.9rem; }
  .hero h1 { font-size: 1.75rem; }
}