/* Basic reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: #222;
  background: #f5f5f7;
}

/* Layout helpers */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid #e2e2e2;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

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

.nav a {
  margin-left: 1.25rem;
  text-decoration: none;
  color: #333;
  font-size: 0.95rem;
}

.nav a:hover {
  color: #0070f3;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #0070f3, #7928ca);
  color: #ffffff;
  padding: 5rem 0 4rem;
  text-align: center;
}

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

.hero-content p {
  max-width: 600px;
  margin: 0.5rem auto 2rem;
  font-size: 1.05rem;
}

/* Button */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: #ffffff;
  color: #0070f3;
  border-radius: 999px;
  border: none;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: #ffffff;
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.card {
  background: #fdfdfd;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.03);
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

/* Contact form */
.contact-form {
  margin-top: 1.5rem;
  max-width: 600px;
}

.form-row {
  margin-bottom: 1rem;
}

.form-row label {
  display: block;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid #ccc;
  font-size: 0.95rem;
}

/* Footer */
.site-footer {
  background: #111827;
  color: #9ca3af;
  padding: 1.5rem 0;
  text-align: center;
  margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    margin-top: 0.5rem;
  }

  .nav a {
    margin-left: 0;
    margin-right: 1rem;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .hero-content h1 {
    font-size: 2rem;
  }
}