:root {
  --primary: #0f1f2e;
  --accent: #1e88e5;
  --light: #f5f7fa;
  --dark: #111;
}

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

body {
  font-family: 'Segoe UI', sans-serif;
  color: #333;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

.navbar {
  background: var(--primary);
  padding: 20px 0;
}

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

.logo {
  color: #fff;
  font-weight: bold;
  font-size: 20px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 25px;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
}

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

.btn-small {
  background: var(--accent);
  padding: 8px 14px;
  border-radius: 4px;
}

.hero {
  position: relative;
  height: 85vh;
  background: url('../images/hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  color: #fff;
}

.hero-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(15,31,46,0.85);
}

.hero-content {
  position: relative;
  text-align: left;
}

.hero h1 {
  font-size: 52px;
  margin-bottom: 20px;
}

.hero p {
  max-width: 600px;
  margin-bottom: 30px;
  font-size: 18px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 12px 25px;
  text-decoration: none;
  margin-right: 15px;
  border-radius: 4px;
}

.btn-secondary {
  border: 2px solid #fff;
  color: #fff;
  padding: 12px 25px;
  text-decoration: none;
  border-radius: 4px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  font-size: 32px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.card {
  background: #fff;
  padding: 30px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.05);
  transition: 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
}

.cta-section {
  background: var(--primary);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.footer {
  background: #0a0f14;
  color: #bbb;
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.footer h3, .footer h4 {
  color: #fff;
  margin-bottom: 15px;
}

.footer ul {
  list-style: none;
}

.footer a {
  color: #bbb;
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  font-size: 14px;
}