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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.8;
  color: #333;
  background-color: #f4f4f4;
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

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

.site-title {
  font-size: 1.8rem;
  font-weight: 600;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid white;
  color: white;
  font-size: 1.5rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  border-radius: 5px;
  transition: all 0.3s;
}

.menu-toggle:hover {
  background: white;
  color: #667eea;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s;
  padding: 0.5rem 1rem;
  cursor: pointer;
}

nav a:hover {
  opacity: 0.8;
  background: rgba(255,255,255,0.1);
  border-radius: 5px;
}

nav a.active {
  background: rgba(255,255,255,0.2);
  border-radius: 5px;
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
              url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 400"><rect fill="%23667eea" width="1200" height="400"/><circle fill="%23764ba2" opacity="0.3" cx="200" cy="200" r="150"/><circle fill="%23667eea" opacity="0.3" cx="800" cy="150" r="200"/></svg>');
  background-size: cover;
  background-position: center;
  color: white;
  text-align: center;
  padding: 3rem 2rem;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.btn-access {
  display: inline-block;
  padding: 1rem 3rem;
  background: white;
  color: #667eea;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: 50px;
  transition: all 0.3s;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-access:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}


/* Main Content */
main {
  padding: 2rem 0;
}

.section {
  margin-bottom: 3rem;
  display: none;
}

.section.active {
  display: block;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: #667eea;
  border-bottom: 3px solid #667eea;
  padding-bottom: 0.5rem;
}

/* Text Content Sections */
.text-content {
  background: white;
  padding: 2.5rem;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  line-height: 1.9;
}

.text-content p {
  margin-bottom: 1.5rem;
  color: #555;
  text-align: justify;
  font-size: 1.05rem;
}

.text-content p:last-child {
  margin-bottom: 0;
}

/* Footer */
footer {
  background: #333;
  color: white;
  text-align: center;
  padding: 2rem 0;
  margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .menu-toggle {
      display: block;
  }

  .header-content {
      flex-wrap: nowrap;
  }

  .nav-wrapper {
      flex-direction: column;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
      padding: 1rem;
      gap: 1rem;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
  }

  .nav-wrapper.active {
      max-height: 500px;
  }

  nav {
      width: 100%;
  }

  nav ul {
      flex-direction: column;
      gap: 0.5rem;
      align-items: center;
      width: 100%;
  }

  nav li {
      width: 100%;
      text-align: center;
  }

  nav a {
      display: block;
      width: 100%;
  }

  .hero h1 {
      font-size: 2rem;
  }

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

  .section-title {
      font-size: 1.5rem;
  }

  .text-content {
      padding: 1.5rem;
  }

  .text-content p {
      font-size: 1rem;
  }
}