/* === Default Global Styling === */
body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  transition: background 0.4s, color 0.4s;
}

/* === Green Theme === */
body.green-theme {
  background: #0a0a0a;
  color: white;
}

body.green-theme header {
  background: #111;
  border-bottom: 1px solid #222;
}

body.green-theme .logo {
  color: #00ff99;
}

body.green-theme nav a:hover {
  color: #00ff99;
}

body.green-theme .chat,
body.green-theme .game-box,
body.green-theme .rooms-box {
  background: #111;
  box-shadow: 0 0 15px #00ff99;
}

body.green-theme .join-btn {
  background: black;
  border: 2px solid #00ff99;
  color: white;
  box-shadow: 0 0 10px #00ff99;
}

body.green-theme .join-btn:hover {
  background: #00ff99;
  color: black;
}

/* === Purple Theme === */
body.purple-theme {
  background: #120012;
  color: white;
}

body.purple-theme header {
  background: #1a001a;
  border-bottom: 1px solid #330033;
}

body.purple-theme .logo {
  color: #cc66ff;
}

body.purple-theme nav a:hover {
  color: #cc66ff;
}

body.purple-theme .chat,
body.purple-theme .game-box,
body.purple-theme .rooms-box {
  background: #1a001a;
  box-shadow: 0 0 15px #cc66ff;
}

body.purple-theme .join-btn {
  background: black;
  border: 2px solid #cc66ff;
  color: white;
  box-shadow: 0 0 10px #cc66ff;
}

body.purple-theme .join-btn:hover {
  background: #cc66ff;
  color: black;
}

/* === Shared Component Styling === */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.logo {
  font-size: 1.8em;
  font-weight: bold;
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: white;
  font-weight: 500;
  transition: color 0.3s;
}

#theme-toggle {
  padding: 10px 20px;
  background: transparent;
  color: white;
  border: 1px solid white;
  border-radius: 8px;
  cursor: pointer;
}

.main {
  display: flex;
  height: calc(100vh - 80px);
}

.chat {
  width: 20%;
  padding: 20px;
  border-right: 1px solid #222;
  display: flex;
  flex-direction: column;
}

.chat h3 {
  margin-bottom: 10px;
}

.chat-box {
  flex-grow: 1;
  margin-bottom: 10px;
  border-radius: 10px;
  background: #1a1a1a;
}

.chat input {
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #222;
  color: white;
}

.main-content {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 40px;
  padding: 40px;
  overflow-y: auto;
}

.game-box {
  width: 600px;
  height: 90%;
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  color: white;
}

.rooms-box {
  width: 300px;
  min-height: 300px;
  border-radius: 20px;
  padding: 30px;
  color: white;
}

.join-btn {
  padding: 15px 40px;
  font-size: 1.2em;
  border-radius: 12px;
  cursor: pointer;
  transition: 0.3s;
}

.rooms-box input {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #222;
  color: white;
  margin-top: 15px;
  margin-bottom: 20px;
}