* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f8fafc;
  color: #0f172a;
}

header {
  background: #0f172a;
  color: white;
  padding: 20px 0;
}

.container {
  max-width: 1150px;
  margin: auto;
  padding: 0 20px;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero {
  background: linear-gradient(to right, #0f172a, #1e293b);
  color: white;
  padding: 80px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: center;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  opacity: 0.9;
}

.card {
  background: white;
  border-radius: 10px;
  padding: 25px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

button {
  background: #0f172a;
  color: white;
  padding: 12px 18px;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #1e293b;
}

input, select {
  width: 100%;
  padding: 10px;
  margin-bottom: 12px;
  border-radius: 6px;
  border: 1px solid #cbd5e1;
}

.section {
  padding: 70px 0;
}

.section-dark {
  background: #0f172a;
  color: white;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 25px;
}

.service-card {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transition: 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-card h3 {
  margin-top: 0;
}

.cta-block {
  background: #1e293b;
  color: white;
  padding: 60px 20px;
  text-align: center;
}

footer {
  background: #0f172a;
  color: #cbd5e1;
  text-align: center;
  padding: 30px 20px;
  font-size: 14px;
}