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

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --dark: #0f172a;
  --text: #334155;
  --light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background-color: var(--white);
  line-height: 1.6;
}

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

.hero {
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  color: var(--white);
  padding-bottom: 80px;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}

.logo {
  font-size: 1.6rem;
  font-weight: bold;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 24px;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
}

.nav-links a:hover {
  opacity: 0.85;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: center;
  padding-top: 50px;
}

.hero-text h1 {
  font-size: 2.8rem;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-text p {
  font-size: 1.1rem;
  margin-bottom: 28px;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: 0.3s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.08);
}

.hero-card {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 30px;
  border-radius: 16px;
  backdrop-filter: blur(6px);
}

.hero-card h3 {
  margin-bottom: 18px;
  font-size: 1.4rem;
}

.hero-card p {
  margin-bottom: 12px;
}

.section {
  padding: 80px 0;
}

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

.section-title {
  font-size: 2rem;
  color: var(--dark);
  margin-bottom: 30px;
  text-align: center;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.card h3 {
  color: var(--dark);
  margin-bottom: 14px;
}

.about {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 30px;
  align-items: start;
}

.about-box {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.about-box h3 {
  margin-bottom: 16px;
  color: var(--dark);
}

.about-box ul {
  list-style: none;
}

.about-box li {
  margin-bottom: 10px;
}

.contact {
  max-width: 700px;
  text-align: center;
}

.contact p {
  margin-bottom: 28px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
}

.footer {
  background-color: var(--dark);
  color: var(--white);
  text-align: center;
  padding: 24px 0;
}

@media (max-width: 900px) {
  .hero-content,
  .cards,
  .about {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 2.2rem;
  }

  .navbar {
    flex-direction: column;
    gap: 16px;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}