/* layout.css */
/* 헤더, 메뉴, 메인, 섹션, 푸터 등 전체 레이아웃 스타일 */
header {
  background-color: #4C6EF5;
  color: white;
  text-align: center;
  padding: 1rem;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

#menu {
  position: fixed;
  left: 0;
  top: 60px;
  bottom: 0;
  width: 250px;
  background-color: #f8f9fa;
  padding: 1.2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
  overflow-y: auto;
}

#menu button {
  display: block;
  width: 100%;
  padding: 8px 12px;
  margin-bottom: 0.3rem;
  border: none;
  border-radius: 4px;
  background-color: transparent;
  color: #495057;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9em;
}

#menu button:hover {
  background-color: #e9ecef;
  color: #2A395A;
}

#menu button.active {
  background-color: #4C6EF5;
  color: white;
  font-weight: 500;
}

main {
  margin-left: 250px;
  margin-top: 60px;
  padding: 20px;
  padding-bottom: 60px;
  background-color: #f8f9fa;
}

.section {
  display: none;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin-bottom: 20px;
}

.section.active {
  display: block;
}

footer {
  background-color: #fff;
  color: #6c757d;
  text-align: center;
  padding: 1rem;
  position: fixed;
  bottom: 0;
  margin-left: 250px;
  width: calc(100% - 250px);
  border-top: 1px solid #dee2e6;
}

/* 메뉴 그룹 스타일 */
.menu-group {
  margin-bottom: 1.2rem;
  background: #fff;
  border-radius: 8px;
  padding: 0.8rem;
}

.menu-group-title {
  color: #2A395A;
  font-weight: 600;
  font-size: 0.95em;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #e9ecef;
}

/* 오디오 플레이어 스타일 */
#audioPlayer {
  background: #fff;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

#audioPlayer .menu-group-title {
  color: #2A395A;
  font-weight: 600;
  font-size: 0.95em;
  margin-bottom: 0.8rem;
}

.audio-container {
  background: #f8f9fa;
  border-radius: 6px;
  padding: 0.8rem;
}

.audio-select {
  width: 100%;
  padding: 6px 10px;
  border: 1px solid #dee2e6;
  background: #fff;
  color: #495057;
  border-radius: 4px;
  margin-bottom: 0.8rem;
  font-size: 0.9em;
  cursor: pointer;
}

.audio-select option {
  background: #fff;
  color: #495057;
}

#audioElement {
  width: 100%;
  height: 32px;
}

/* 스크롤바 스타일링 */
#menu::-webkit-scrollbar {
  width: 4px;
}

#menu::-webkit-scrollbar-track {
  background: transparent;
}

#menu::-webkit-scrollbar-thumb {
  background: #dee2e6;
  border-radius: 4px;
}

#menu::-webkit-scrollbar-thumb:hover {
  background: #ced4da;
}

/* 반응형 조정 */
@media screen and (max-width: 768px) {
  #menu {
    width: 220px;
    padding: 1rem;
  }

  main {
    margin-left: 220px;
  }

  footer {
    margin-left: 220px;
    width: calc(100% - 220px);
  }
}