body { 
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial; 
  background: #f0f0f5; 
  margin: 0; 
  padding: 0;
}

.container { 
  max-width: 600px; 
  margin: 24px auto; 
  background: white; 
  border-radius: 12px; 
  box-shadow: 0 6px 20px rgba(0,0,0,0.08); 
  overflow: hidden;
}

.header { 
  padding: 12px 16px; 
  background: #007aff; 
  color: white; 
  font-weight: 600;
}

.chat-window { 
  padding: 16px; 
  height: 60vh; 
  overflow-y: auto; 
  background: linear-gradient(#f7f7fb,#f0f0f5);
}

.bubble { 
  display: inline-block; 
  padding: 10px 14px; 
  margin: 8px 0; 
  border-radius: 18px; 
  max-width: 78%; 
  line-height: 1.3;
  word-wrap: break-word;
}

.bubble.bot { 
  background: #e5e5ea; 
  color: #000; 
  border-top-left-radius: 6px;
  float: left;
  clear: both;
}

.bubble.user { 
  background: #0b93f6; 
  color: white; 
  border-top-right-radius: 6px;
  float: right;
  clear: both;
}

.composer { 
  display: flex; 
  padding: 12px; 
  gap: 8px; 
  background: white;
  clear: both;
}

.composer input { 
  flex: 1; 
  padding: 10px; 
  border: 1px solid #ddd; 
  border-radius: 18px; 
  outline: none;
  font-size: 1rem;
}

.composer input:focus {
  border-color: #007aff;
}

.composer button { 
  background: #007aff; 
  color: white; 
  border: none; 
  padding: 10px 14px; 
  border-radius: 14px; 
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}

.composer button:hover {
  background: #0051d5;
}

.composer button:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.error-message {
  background: #ff3b30;
  color: white;
  padding: 12px;
  margin: 12px;
  border-radius: 6px;
  text-align: center;
  font-size: 0.9rem;
}

.admin-container { 
  max-width: 900px; 
  margin: 24px auto; 
  padding: 16px; 
  background: white; 
  border-radius: 8px; 
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.admin-list { 
  list-style: none; 
  padding: 0;
}

.admin-list li { 
  border-bottom: 1px dashed #ddd; 
  padding: 12px 0;
}

.admin-list textarea { 
  width: 100%; 
  min-height: 70px; 
  margin-top: 8px;
  box-sizing: border-box;
}

.meta { 
  background: #fff7cc; 
  padding: 6px; 
  margin-top: 6px; 
  border-radius: 6px; 
  font-size: 0.9em;
}