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

:root {
  --primary-blue: #0066cc;
  --dark-blue: #003d7a;
  --bright-yellow: #ffd700;
  --dark-yellow: #cc9900;
  --black: #000000;
  --dark-gray: #1a1a1a;
  --medium-gray: #333333;
  --light-gray: #f5f5f5;
  --white: #ffffff;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--white);
  background: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 50%, var(--medium-gray) 100%);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: linear-gradient(90deg, var(--black) 0%, var(--dark-blue) 100%);
  box-shadow: 0 4px 20px rgba(0, 102, 204, 0.3);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--bright-yellow);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);
}

.logo-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-blue), var(--bright-yellow));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.logo-text h1 {
  font-size: 1.8rem;
  color: var(--white);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logo-text p {
  font-size: 0.85rem;
  color: var(--bright-yellow);
  margin: 0;
}

nav ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

nav a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 8px 16px;
  border-radius: 6px;
  transition: all 0.3s ease;
  position: relative;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--bright-yellow);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

nav a:hover {
  color: var(--bright-yellow);
  background: rgba(0, 102, 204, 0.2);
}

nav a:hover::after {
  width: 80%;
}

.hero {
  background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
  padding: 4rem 0;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0, 102, 204, 0.4);
  margin-bottom: 3rem;
  border-bottom: 4px solid var(--bright-yellow);
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
  font-size: 1.3rem;
  color: var(--bright-yellow);
  max-width: 800px;
  margin: 0 auto;
}

main {
  padding: 3rem 0;
}

.content-section {
  background: linear-gradient(135deg, var(--medium-gray) 0%, var(--dark-gray) 100%);
  padding: 3rem;
  border-radius: 16px;
  margin-bottom: 3rem;
  box-shadow: 0 10px 40px rgba(0, 102, 204, 0.2);
  border: 2px solid rgba(0, 102, 204, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.content-section:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 50px rgba(255, 215, 0, 0.3);
}

.content-section h3 {
  font-size: 2rem;
  color: var(--bright-yellow);
  margin-bottom: 1.5rem;
  border-bottom: 3px solid var(--primary-blue);
  padding-bottom: 0.5rem;
}

.content-section h4 {
  font-size: 1.5rem;
  color: var(--white);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.content-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--light-gray);
  margin-bottom: 1.2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.feature-card {
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--black) 100%);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  border: 2px solid var(--primary-blue);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: var(--bright-yellow);
  box-shadow: 0 15px 40px rgba(255, 215, 0, 0.3);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h4 {
  color: var(--bright-yellow);
  margin: 0 0 1rem 0;
}

.feature-card p {
  color: var(--light-gray);
  font-size: 1rem;
  margin: 0;
}

.cta-section {
  background: linear-gradient(90deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
  padding: 3rem;
  border-radius: 16px;
  text-align: center;
  margin: 3rem 0;
  border: 3px solid var(--bright-yellow);
}

.cta-section h3 {
  font-size: 2.5rem;
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.2rem;
  color: var(--bright-yellow);
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  background: var(--bright-yellow);
  color: var(--black);
  padding: 1rem 3rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.2rem;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px rgba(255, 215, 0, 0.4);
}

.cta-button:hover {
  background: var(--dark-yellow);
  transform: scale(1.05);
  box-shadow: 0 12px 30px rgba(255, 215, 0, 0.6);
}

footer {
  background: linear-gradient(90deg, var(--black) 0%, var(--dark-gray) 100%);
  color: var(--white);
  padding: 3rem 0 1rem;
  margin-top: 4rem;
  border-top: 4px solid var(--bright-yellow);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--bright-yellow);
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: var(--light-gray);
  text-decoration: none;
  display: block;
  padding: 0.5rem 0;
  transition: all 0.3s ease;
}

.footer-section a:hover {
  color: var(--bright-yellow);
  padding-left: 10px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--medium-gray);
  color: var(--light-gray);
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  nav ul {
    flex-direction: column;
    gap: 0.5rem;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .content-section {
    padding: 1.5rem;
  }

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