:root {
  --background-color: #121212;
  --text-color: #e0e0e0;
  --accent-color: #90caf9;
  --nav-bg: #1c1c1c;
  --nav-text: #ffffff;
  --footer-bg: #0d0d0d;
  --link-color: #c2d5e6;
  --card-bg: #1e1e1e;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --card-hover: #2a2a2a;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}

main {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

header {
  background-color: var(--nav-bg);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
  margin: 0;
  font-size: 3rem;
  color: var(--nav-text);
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  height: 100px;
  border-radius: 50%;
}

nav {
  position: relative;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

nav a {
  color: var(--nav-text);
  font-weight: bold;
}

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

.hamburger {
  display: none;
  background: none;
  color: var(--text-color);
  font-size: 2rem;
  border: none;
  cursor: pointer;
}

a {
  color: var(--link-color);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

section {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  scroll-margin-top: 90px;
}

section h2 {
  margin-top: 0;
  text-align: center;
}

.company-section {
  width: 50%;
  margin: 0 auto;
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  transition: background-color 0.3s, transform 0.3s;
}

.company-section a {
  display: block;
  color: inherit;
  text-decoration: none;
}

.company-section a:hover .company-content {
  background-color: var(--card-hover);
}

.company-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  transition: background-color 0.3s;
  padding: 1rem;
}

.company-logo {
  width: 110px;
  height: auto;
  margin-bottom: 1rem;
  border-radius: 8px;
}

address p {
  margin: 0.3rem 0;
}

footer {
  background-color: var(--footer-bg);
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-color);
}

@media (max-width: 768px) {
  main {
    padding: 0.5rem;
    gap: 1rem;
  }

  nav ul {
    flex-direction: column;
    display: none;
    background-color: var(--nav-bg);
    position: absolute;
    top: 70px;
    right: 0;
    width: 200px;
    padding: 1rem;
  }

  nav ul.open {
    display: flex;
  }

  .hamburger {
    display: block;
  }

  .company-section {
    width: 80%;
    margin: 0.5rem auto;
  }

  .company-content {
    width: 100%;
    padding: 0;
    margin: 0.5rem;
  }

  header h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--nav-text);
  }

  section h2 {
    text-align: left;
    margin: 0;
  }

  .logo {
    height: 75px;
  }
}