body {
  display: flex;
  flex-direction: column;
  height: 100vh;
  margin: 0;
  font-family: Arial, sans-serif;
}

.vh-100 {
  height: 100vh;
}

.header {
  flex-shrink: 0;
}

.main {
  display: flex;
  flex-grow: 1;
  overflow: hidden;
}

.sidebar {
  width: 250px;
  background-color: #f8f9fa;
  padding: 15px;
  overflow-y: auto;
  flex-shrink: 0;
}

.content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
  overflow-y: auto;
}

.main-content {
  flex-grow: 1;
}

.footer {
  flex-shrink: 0;
  display: flex;
  gap: 10px;
  padding-top: 10px;
}

textarea#msg {
  flex-grow: 1;
}

button#send {
  flex-shrink: 0;
}

/* Add cursor change on hover for radio buttons */
.form-check-input:hover, 
.form-check-label:hover {
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin-top: 10px;
}
th, td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}
th {
  background-color: #f4f4f4;
  font-weight: bold;
}
.active-item {
background-color: #6c757d; /* 밝은 회색 */
color: #fff; /* 텍스트 색상 */
border-color: #6c757d; /* 테두리 색상 */
}