:root {
  --bg-color: #121212;
  --text-color: #eee;
  --details-bg: #121212;
  --btn-bg: #eee;
  --btn-hover: #9b9b9b;
  --detail-bg: #4CAF50;
}

body.light-mode {
  --bg-color: #f5f5f5;
  --text-color: #121212;
  --details-bg: #ffffff;
  --btn-bg: #121212;
  --btn-hover: #444;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: 'Courier New', Courier, monospace;
  text-align: center;
  margin: 0;
  padding: 0;
  transition: background-color 0.4s, color 0.4s;
}

body::-webkit-scrollbar {
  width: 10px;
}
body::-webkit-scrollbar-track {
  background: #2e2e2e;
  border-radius: 10px;
}
body::-webkit-scrollbar-thumb {
  background-color: #555;
  border-radius: 10px;
  border: 2px solid #2e2e2e;
}
body::-webkit-scrollbar-thumb:hover {
  background-color: #777;
}

.theme-btn {
  position: fixed;
  top: 10px;
  right: 10px;
  font-size: 1.5em;
  padding: 10px;
  border: none;
  background-color: var(--text-color);
  color: var(--bg-color);
  border-radius: 5px;
  cursor: pointer;
  z-index: 1000;
}

h1 {
  text-align: center;
  font-family: system-ui;
  font-size: 4em;
  font-weight: 900;
  margin-top: 2vh;
}

#typewriter {
  font-size: 1.75em;
  line-height: 1.2;
  min-height: 1.75em;
  display: inline-block;
  border-right: 2px solid var(--text-color);
  white-space: nowrap;
  overflow: hidden;
  animation: blink 0.8s step-end infinite;
}

@keyframes typing {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  0%, 100% { border-color: var(--text-color); }
  50% { border-color: transparent; }
}

#description, #free, #slogan {
  width: 90%;
  margin: 4vh auto;
  text-align: left;
  font-size: 1.25em;
  line-height: 1.6em;
}

#bots {
  width: 90%;
  margin: 2.5vh auto;
  text-align: left;
  font-size: 1.25em;
}

details {
  background-color: var(--detail-bg);
  border: 1px solid #ccc;
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 2vh;
  font-family: Arial, sans-serif;
}

summary {
  font-weight: bold;
  cursor: pointer;
  position: relative;
  padding-left: 20px;
  list-style: none;
}

summary::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 1.25em;
}

details[open] summary::before {
  content: "−";
}

p {
  margin-top: 10px;
  background-color: var(--detail-bg);
  padding: 5px;
}

#getstarted {
  font-size: 1.5em;
  border-radius: 8px;
  padding: 10px 20px;
  background-color: var(--btn-bg);
  color: var(--bg-color);
  margin-top: 4vh;
  cursor: pointer;
  transition: background-color 0.5s ease-in-out;
  border: none;
}

#getstarted:hover {
  background-color: var(--btn-hover);
}

@media (max-width: 768px) {
  h1 {
    font-size: 3em;
  }

  #typewriter {
    font-size: 1.4em;
    width: 100%;
  }

  #description, #free, #slogan, #bots {
    font-size: 1.1em;
  }

  #getstarted {
    font-size: 1em;
    padding: 8px 16px;
  }

  .theme-btn {
    font-size: 1.2em;
    padding: 8px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.2em;
  }

  #typewriter {
    font-size: 1.2em;
  }

  #description, #free, #slogan, #bots {
    font-size: 1em;
    width: 95%;
  }

  summary {
    font-size: 1em;
  }

  p {
    font-size: 0.95em;
  }

  #getstarted {
    font-size: 1em;
    padding: 6px 12px;
  }

  .theme-btn {
    font-size: 1em;
    padding: 6px;
  }
}