body {
  margin: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(120deg, #6dd5ed, #2193b0);
  min-height: 100vh;
}
.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
  padding: 32px 24px;
  margin-bottom: 32px;
  text-align: center;
  max-width: 350px;
  width: 100%;
}
.card h1 {
  margin-bottom: 24px;
  font-size: 2rem;
  color: #2193b0;
}
.card input {
  width: 80%;
  padding: 10px;
  margin-bottom: 16px;
  border-radius: 8px;
  border: 1px solid #ccc;
  font-size: 1rem;
}
.actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.actions button {
  padding: 10px 18px;
  border: none;
  border-radius: 8px;
  background: #2193b0;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.actions button:hover {
  background: #6dd5ed;
}
#conference {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}
.video-section {
  display: flex;
  gap: 16px;
  justify-content: center;
}
video {
  width: 320px;
  height: 240px;
  background: #222;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}
.chat-section {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  padding: 16px;
  width: 350px;
  max-width: 100vw;
}
#chatMessages {
  min-height: 120px;
  max-height: 180px;
  overflow-y: auto;
  margin-bottom: 12px;
}
.chat-input {
  display: flex;
  gap: 8px;
}
.chat-input input {
  flex: 1;
  padding: 8px;
  border-radius: 8px;
  border: 1px solid #ccc;
}
.chat-input button {
  padding: 8px 12px;
  border: none;
  border-radius: 8px;
  background: #2193b0;
  color: #fff;
  cursor: pointer;
}
.chat-input button:hover {
  background: #6dd5ed;
}
#emojiPicker {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  background: #f7f7f7;
  border-radius: 8px;
  padding: 8px;
  max-width: 320px;
}
.hidden {
  display: none !important;
}
@media (max-width: 700px) {
  .video-section video {
    width: 160px;
    height: 120px;
  }
  .chat-section {
    width: 95vw;
    padding: 8px;
  }
}