:root {
  --primary: #1e3a5f;
  --secondary: #f4f7fb;
  --accent: #2da44e;
  --dark: #1f2933;
  --light: #6b7280;
  --white: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: var(--secondary);
  color: var(--dark);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}

a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

/* Header */
.header {
  background: linear-gradient(135deg, #1e3a5f, #274c77);
  color: var(--white);
  padding: 30px 0 80px;
}

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

.logo {
  font-size: 26px;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 50px;
}

.hero-text h1 {
  font-size: 42px;
  margin-bottom: 15px;
}

.hero-text p {
  color: #e5e7eb;
  font-size: 18px;
  margin-bottom: 25px;
}

.hero-box {
  background: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 12px;
}

/* Buttons */
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: 14px 30px;
  border-radius: 6px;
  transition: background 0.3s ease;
}

.btn:hover {
  background: #238636;
}

/* Sections */
.section {
  background: var(--white);
  padding: 70px 0;
}

.section.alt {
  background: var(--secondary);
}

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

.section-title h2 {
  font-size: 32px;
  margin-bottom: 10px;
}

.section-title p {
  color: var(--light);
  max-width: 650px;
  margin: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background: var(--white);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.card h3 {
  margin-bottom: 10px;
}

.card p {
  color: var(--light);
}

.content-text {
  max-width: 850px;
  margin: auto;
  text-align: center;
  font-size: 17px;
}

.center {
  text-align: center;
}

.cta-text {
  max-width: 700px;
  margin: 15px auto 30px;
  color: var(--light);
}

/* Footer */
.footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 50px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}

.footer h4 {
  color: var(--white);
  margin-bottom: 10px;
}

.footer p {
  font-size: 14px;
}

.copyright {
  text-align: center;
  margin-top: 30px;
  font-size: 13px;
  color: #94a3b8;
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }

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

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