body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f8fafc;
  color: #222;
  margin: 0;
  padding: 0;
}
header, nav, main, footer {
  width: 100%;
  margin: 0 auto;
}
nav {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  border-radius: 2em;
  margin: 2em auto 2em auto;
  max-width: 96vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5em 2em;
}
nav .brand {
  font-weight: bold;
  font-size: 1.3em;
  color: #0a192f;
}
nav ul {
  list-style: none;
  display: flex;
  gap: 2em;
  margin: 0;
  padding: 0;
}
nav ul li a {
  color: #222;
  text-decoration: none;
  font-size: 1em;
  transition: color 0.2s;
}
nav ul li a:hover {
  color: #0a192f;
}
.hero {
  text-align: center;
  padding: 3em 1em 2em 1em;
}
.hero h1 {
  font-size: 2.5em;
  font-weight: 800;
  margin-bottom: 0.5em;
}
.hero p {
  font-size: 1.2em;
  color: #555;
  margin-bottom: 1.5em;
}
.cta-btn {
  background: #111;
  color: #fff;
  padding: 0.8em 2em;
  border-radius: 0.5em;
  font-size: 1.1em;
  border: none;
  cursor: pointer;
  margin: 0.5em;
  transition: background 0.2s;
  text-decoration: none;
  display: inline-block;
}
.cta-btn:hover {
  background: #333;
}
.services {
  max-width: 1100px;
  margin: 2em auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2em;
}
.service-card {
  background: #fff;
  border-radius: 1em;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  padding: 2em 1.5em 1.5em 1.5em;
  text-align: center;
}
.service-card img {
  width: 40px;
  height: 40px;
  margin-bottom: 1em;
}
.service-card h3 {
  font-size: 1.2em;
  font-weight: 700;
  margin-bottom: 0.5em;
}
.service-card p {
  color: #555;
  font-size: 1em;
}
footer {
  background: #18181b;
  color: #fff;
  text-align: center;
  padding: 2em 1em 1em 1em;
  margin-top: 3em;
  border-radius: 1em 1em 0 0;
}
.contact-form {
  max-width: 500px;
  margin: 2em auto;
  background: #fff;
  border-radius: 1em;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  padding: 2em 2em 1.5em 2em;
}
.contact-form label {
  display: block;
  margin-bottom: 0.3em;
  font-weight: 500;
}
.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 0.7em;
  margin-bottom: 1em;
  border: 1px solid #ddd;
  border-radius: 0.4em;
  font-size: 1em;
}
.contact-form button {
  background: #111;
  color: #fff;
  padding: 0.8em 2em;
  border-radius: 0.5em;
  font-size: 1.1em;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.contact-form button:hover {
  background: #333;
}
.success-msg {
  color: #16a34a;
  font-weight: 600;
  margin-bottom: 1em;
}
.error-msg {
  color: #dc2626;
  font-weight: 600;
  margin-bottom: 1em;
}