:root {
    --primary: #1e3a8a;      /* Navy */
    --accent: #f97316;       /* Orange */
    --light-bg: #f9fafb;
    --dark-text: #1e293b;
    --muted-text: #6b7280;
    --border: #dbdde1;
    --bg: #ffffff;
  }

body {
text-align: center;
padding: 0;
margin: 0;
background-color: var(--bg);
font-family: 'Segoe UI', sans-serif;
color: var(--dark-text);
line-height: 1.6;
}

/* 서론 구역 */
.title_abstract {
    max-width: 900px;
    margin: 40px auto 40px auto;
    padding: 40px 20px;
  }
  
  /* 메인 섹션들 */
  .main-content,
  .main-content2,
  .main-content3 {
    max-width: 900px;
    margin: 30px auto 30px auto; /* 섹션 간 충분한 공간 확보 */
    padding: 60px 30px;
    border-top: 1px solid var(--border); /* 구분감 주기 */
  }

  .main-content2 {
    padding-bottom: 0px;
  }
  
  /* 헤더 강조 (섹션 구분을 더 강하게 시각적으로 인식하게 함) */
  .main-content h2,
  .main-content2 h2,
  .main-content3 h2 {
    font-size: 2.2em;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary);
    display: inline-block;
  }
  
  /* 서브헤더 간격 및 계층감 */
  .main-content2 h3,
  .main-content3 h3 {
    margin-top: 48px;
    font-size: 1.5em;
    margin-bottom: 10px;
  }
  
  .main-content2 h4,
  .main-content3 h4 {
    font-size: 1.1em;
    margin-top: 10px;
    line-height: 1.7;
    color: var(--muted-text);
  }
  
  /* 비교 영역 간 간격도 증가 */
  .comparison-container2 {
    margin: 48px 0;
  }

  .query-retrieved-container {
    border-radius: 12px;
  }
  

#originVisualizer, #retrievedVisualizer {
    overflow-x: hidden;
    overflow-y: hidden;
    scrollbar-width: thin;
}



.comparison-item2 midi-visualizer .piano-roll-visualizer {
    overflow: auto !important;
    max-height: none !important;
    overflow-y: hidden !important;
}

.comparison-container2 {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    margin: 25px 0;
    gap: 24px;
    flex-wrap: wrap;
}

.comparison-item2 {
    flex: 1;
    text-align: center;
    max-width: 500px;
    min-width: 300px;
    background: white;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    box-sizing: border-box;
    height: auto;
}

.comparison-item2 h4 {
    margin-bottom: 4px;
    color: var(--dark-text);
    font-size: 1.1em;
    font-weight: 500;
    width: 100%;
}

.comparison-item2 midi-player {
    width: 100%;
    margin-top: auto;
}

/* MIDI visualizer styling */
.comparison-item2 midi-visualizer svg rect.note {
    opacity: 0.8;
    stroke-width: 1;
}

.comparison-item2 midi-visualizer svg rect.note {
    fill: var(--primary);
}

.comparison-item2 midi-visualizer svg rect.note.active {
    fill: var(--accent);
}
.comparison-item2 midi-player::part(seek-bar) {
    accent-color: var(--primary);
}

.comparison-item2 midi-visualizer {
    width: 100%;
    margin-bottom: 12px;
    overflow: visible;
    overflow-x: scroll;
    overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--border);
    display: block;
}

/* Webkit 브라우저용 스크롤바 스타일 */
.comparison-item2 midi-visualizer::-webkit-scrollbar {
    height: 8px;
    display: block;
}

.comparison-item2 midi-visualizer::-webkit-scrollbar-track {
    background: var(--border);
    border-radius: 4px;
}

.comparison-item2 midi-visualizer::-webkit-scrollbar-thumb {
    background-color: var(--primary);
    border-radius: 4px;
}

h1 {
color: var(--primary);
margin: 40px 0 20px;
font-size: 2.2em;
font-weight: 800;
}

h2, h3, h4 {
color: var(--dark-text);
font-weight: 500;
}

h2 {
font-size: 1.6em;
margin-top: 30px;
margin-bottom: 20px;
font-weight: 800;
}

h3 {
font-size: 1.2em;
margin-top: 0px;
margin-bottom: 0px;
}

h4{
font-size: 1.2em;
margin: 0 0 8px 0;
}


.title_abstract h2 {
    margin-top: 0px;
    font-weight: 500;
}

.main-content {
max-width: 900px;
margin: 0 auto;
padding: 40px 20px;
}

.file-path {
color: var(--muted-text);
font-size: 0.9em;
margin: 0 0 4px 0;
text-align: center;
}

button,
select {
font-family: inherit;
font-size: 0.95em;
border: 1px solid var(--border);
border-radius: 6px;
padding: 8px 14px;
background-color: white;
color: var(--dark-text);
cursor: pointer;
transition: all 0.2s ease;
}

button:hover,
select:hover {
border-color: var(--primary);
}

/* 선택 요소 컨테이너 */
.select-container {
max-width: 600px;
margin: 0 auto 20px;
text-align: center;
}

/* 버튼 컨테이너 */
.button-container {
display: flex;
justify-content: center;
margin-bottom: 16px;
}

#toggleBtn {
background-color: var(--accent);
color: white;
font-weight: 500;
min-width: 400px;
white-space: nowrap;
padding: 10px 20px;
box-sizing: border-box;
}

select {
width: 100%;
max-width: 600px;
margin: 8px auto;
display: block;
text-align: left;
box-sizing: border-box;
}

select option, select optgroup {
text-overflow: ellipsis;
white-space: nowrap;
overflow: hidden;
}

.comparison-container {
display: flex;
flex-direction: column;
gap: 24px;
align-items: center;
margin: 30px 0;
}

.comparison-item {
background-color: white;
width: 90%;
max-width: 850px;
padding: 20px;
border-radius: 8px;
border: 1px solid var(--border);
text-align: center;
position: relative;
}

.loading-message {
color: var(--accent);
font-size: 1.1em;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 1;
}

.comparison-item midi-visualizer {
position: relative;
min-height: 200px;
overflow-x: scroll;
overflow-y: hidden;
scrollbar-width: thin;
scrollbar-color: var(--primary) var(--border);
}

/* Webkit 브라우저용 스크롤바 스타일 */
.comparison-item midi-visualizer::-webkit-scrollbar {
height: 8px;
display: block;
}

.comparison-item midi-visualizer::-webkit-scrollbar-track {
background: var(--border);
border-radius: 4px;
}

.comparison-item midi-visualizer::-webkit-scrollbar-thumb {
background-color: var(--primary);
border-radius: 4px;
}

.comparison-item h4 {
font-size: 1.1em;
margin-bottom: 4px;
color: var(--dark-text);
font-weight: 500;
}

midi-visualizer svg rect.note {
fill: var(--primary);
}

midi-visualizer svg rect.note.active {
fill: var(--accent);
}

@media (max-width: 768px) {
#toggleBtn {
    min-width: 90%;
}

select {
    width: 90%;
}
}
midi-player::part(seek-bar) {
accent-color: var(--primary);
}

.main-content2 h1, .main-content3 h1 {
    color: var(--primary);
    margin: 40px 0 20px;
    font-size: 2.2em;
    font-weight: 800;
}

.main-content2 h3, .main-content2 h4, .main-content3 h2, .main-content3 h3, .main-content3 h4 {
    color: var(--dark-text);
    font-weight: 500;
}

.main-content h2, .main-content2 h2, .main-content3 h2 {
    font-size: 1.6em;
    margin-top: 30px;
    font-weight: 900;
}

.main-content2 h3, .main-content3 h3 {
    font-size: 1.4em;
    margin-top: 20px;
    font-weight: 600;
}


.main-content2 h4, .main-content3 h4 {
    font-size: 1.2em;
    margin: 0 0 8px 0;
}


.main-content h2, .main-content2 h2, .main-content3 h2 {
    color: var(--primary);
}


.comparison-item2 .file-path {
    color: var(--muted-text);
    font-size: 0.9em;
    margin: 0 0 4px 0;
}

/* 네비게이션 메뉴 */
.navigation {
  position: fixed;
  top: 10px;
  right: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  padding: 6px 8px;
  border-radius: 6px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border);
}

.navigation a {
  text-decoration: none;
  color: var(--dark-text);
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.9em;
}

.navigation a:hover {
  background-color: var(--light-bg);
  color: var(--primary);
}

.navigation a.active {
  background-color: var(--primary);
  color: white;
}

/* 모바일에서의 네비게이션 스타일 */
@media (max-width: 768px) {
  .navigation {
    top: 3px;
    right: 3px;
    padding: 4px 6px;
    gap: 4px;
  }
  
  .navigation a {
    font-size: 0.75em;
    padding: 2px 4px;
    white-space: nowrap;
  }
}