:root {
  --color-primary: #00f0ff;
  --color-background: #0c0c0c;
  --color-text: #e0e0e0;
  --color-dark: #111;
}

body {
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: 'Poppins', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding-top: 100px; 
}

header {
  width: 100%;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 40px;
  position: fixed;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--color-primary);
  box-shadow: 0 4px 15px rgba(0, 240, 255, 0.15);
}

header .logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--color-primary);
  font-size: 1.8rem;
  font-weight: 800;
}

header img {
   height: 200px;
  position: fixed;
  margin-top: -10px;
}

nav {
  display: flex;
  gap: 15px;
}

.nav-btn {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1rem;
  padding: 10px 20px;
  border: 2px solid var(--color-primary);
  border-radius: 20px;
  transition: all 0.3s ease;
  background-color: transparent;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}

.nav-btn.active, .nav-btn:hover {
  background: var(--color-primary);
  color: var(--color-dark);
  box-shadow: 0 0 20px var(--color-primary), 0 0 40px rgba(0, 240, 255, 0.6);
  transform: scale(1.05);
}

.nav-btn.active {
    pointer-events: none;
}

main {
  text-align: center;
  max-width: 800px;
  padding: 40px 20px;
  line-height: 1.8;
}

h1, h2 {
  color: var(--color-primary);
  font-weight: 800;
}

h1 {
  font-size: 3rem;
  margin-bottom: 30px;
}

h2 {
  font-size: 2rem;
  margin-top: 40px;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 5px;
  display: inline-block;
}

.anime-intro p, .how-to-play p {
    font-size: 1.15rem;
    margin-bottom: 30px;
    text-align: left;
}

ol {
    list-style: none;
    counter-reset: item;
    padding: 0;
    margin: 30px 0;
    text-align: left;
}

ol li {
    counter-increment: item;
    margin-bottom: 15px;
    font-size: 1.1rem;
    padding-left: 50px;
    position: relative;
}

ol li::before {
    content: counter(item);
    position: absolute;
    left: 0;
    background-color: var(--color-primary);
    color: var(--color-dark);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    line-height: 30px;
    text-align: center;
    font-weight: 700;
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
}

.big-button {
  text-decoration: none;
  color: var(--color-dark);
  background: var(--color-primary);
  padding: 15px 35px;
  font-size: 1.4rem;
  font-weight: 800;
  border-radius: 30px;
  transition: all 0.3s ease;
  display: inline-block;
  margin-top: 20px;
  box-shadow: 0 0 15px var(--color-primary);
  border: 3px solid var(--color-primary);
}

.big-button:hover {
  background: var(--color-dark);
  color: var(--color-primary);
  box-shadow: 0 0 30px var(--color-primary);
  transform: translateY(-3px) scale(1.02);
}


footer {
  width: 100%;
  background: var(--color-dark);
  padding: 20px 0;
  margin-top: auto;
  text-align: center;
  border-top: 3px solid var(--color-primary);
  box-shadow: 0 -4px 15px rgba(0, 240, 255, 0.15);
}

footer p {
    margin: 5px 0 15px 0;
    font-size: 0.9rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 25px;
  margin-bottom: 10px;
}

.social-links a {
  color: var(--color-text);
  font-size: 1.5rem;
  text-decoration: none;
  transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover {
  color: var(--color-primary);
  transform: translateY(-2px) scale(1.1);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
  padding: 20px;
}

@media (max-width: 768px) {
  body {
    padding-top: 80px;
  }
  
  header {
    padding: 10px 20px;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  header .logo-link {
    font-size: 1.5rem;
  }

  header img {
    margin-top: 30px;
    transform: translateX(-50%);
  }

  nav {
    gap: 10px;
    justify-content: center;
  }

  .nav-btn {
    font-size: 0.6rem;
    margin-top: 35px;
    padding: 8px 15px;
  }

  main {
    padding: 20px 10px;
  }

  h1 {
    font-size: 2.2rem;
  }

  h2 {
    font-size: 1.6rem;
  }
  
  .anime-intro p, .how-to-play p, ol li {
    font-size: 1rem;
  }

  .big-button {
    font-size: 1.2rem;
    padding: 12px 25px;
  }
}