@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@600&display=swap');

:root {
    --primary-color: #007bff;
    --bg-color: #f4f7f9;
    --card-bg: #ffffff;
    --text-color: #333;
    --border-color: #e0e0e0;
    --pitch-color: #28a745;
    --stability-color: #ffc107;
    --longtone-color: #17a2b8;
    --rhythm-color: #dc3545;
    --tech-color: #6f42c1;
    --highlight-bg: #e7f1ff;
}

body {
    font-family: "Noto Sans JP", sans-serif;
    font-optical-sizing: auto;
    font-weight: 600;
    font-style: normal;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
}

header h1 { margin: 0; }

.file-loader { text-align: center; padding: 20px 0; }
.file-loader label {
    cursor: pointer;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.2s;
}
.file-loader label:hover { background-color: #0056b3; }
.file-loader input[type="file"] { display: none; }

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.hidden { display: none; }

#merge-box {
    padding: 15px;
    border: 1px dashed var(--primary-color);
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.file-input-group { display: flex; flex-direction: column; gap: 5px; }
.file-input-group label { font-weight: bold; font-size: 0.9em; }

#json-input-b {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    box-sizing: border-box;
}

#merge-btn {
    padding: 10px 15px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s;
}
#merge-btn:hover { background-color: #218838; }

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    margin-bottom: 10px;
}

.list-header h2 { margin: 0; padding: 0; border: none; }
.record-count {
    font-size: 0.7em;
    font-weight: normal;
    color: #6c757d;
    margin-left: 10px;
    vertical-align: middle;
}

#toggle-scores-btn {
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    background-color: #f8f9fa;
    border-radius: 5px;
    cursor: pointer;
    white-space: nowrap;
}
#toggle-scores-btn:hover { background-color: #e9ecef; }

#filter-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
    margin-bottom: 20px;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 150px;
    flex-grow: 1;
}
.filter-group label { font-size: 0.8em; font-weight: bold; color: #555; }
.multi-input-group { display: flex; gap: 5px; width: 100%; }
#filter-controls select,
#filter-controls input,
#filter-controls button {
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1em;
    box-sizing: border-box;
}
.multi-input-group > * { flex-grow: 1; }
.multi-input-group > input[type="number"] { flex-grow: 0.5; }
.button-group { flex-direction: row; align-self: flex-end; }
#filter-controls button { border: none; cursor: pointer; font-weight: bold; }
#apply-filter-btn { background-color: var(--primary-color); color: white; }
#reset-filter-btn { background-color: #6c757d; color: white; }

.footer { padding: 30px 0; text-align: center; font-size: 0.9rem; color: #333; }
#detail-view h2, #songlist-page h2 {
    margin-top: 0;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
}

#song-list, #unique-song-list { list-style: none; padding: 0; margin: 0; }
#song-list li {
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background-color 0.2s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
#song-list li:last-child { border-bottom: none; }
#song-list li:hover { background-color: #f8f9fa; }
#song-list .list-song-name { font-weight: bold; }
#song-list .list-score { font-size: 1.1em; color: var(--primary-color); }
.scores-hidden .list-score { display: none; }

#back-to-list-btn {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    margin-bottom: 15px;
    transition: background-color 0.2s, color 0.2s;
}
#back-to-list-btn:hover { background-color: var(--primary-color); color: white; }

.song-header { display: flex; justify-content: space-between; align-items: flex-end; }
.song-title-artist h2 { margin: 0; font-size: 1.8em; font-weight: bold; }
.song-title-artist p { margin: 5px 0 0 0; font-size: 1.1em; color: #555; }
.song-meta p { margin: 0; font-size: 0.9em; color: #777; white-space: nowrap; }
hr { border: none; height: 1px; background-color: var(--border-color); margin: 15px 0; }

.total-score-container { text-align: center; font-size: 2.5em; font-weight: bold; margin: 25px 0; }
.total-score-container .score-value { font-size: 1.5em; color: var(--primary-color); }

.score-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width: 768px) { .score-grid { grid-template-columns: repeat(2, 1fr); } }

.score-item .item-header { display: flex; justify-content: space-between; margin-bottom: 5px; font-weight: bold; }
.progress-bar-bg { height: 20px; background-color: #e9ecef; border-radius: 10px; overflow: hidden; }
.progress-bar { height: 100%; width: 0; border-radius: 10px; transition: width 0.5s ease-in-out; }
.pitch-bg { background-color: var(--pitch-color); }
.stability-bg { background-color: var(--stability-color); }
.longtone-bg { background-color: var(--longtone-color); }
.rhythm-bg { background-color: var(--rhythm-color); }
.tech-bg { background-color: var(--tech-color); }

.technique-counts {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    text-align: center;
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}
.tech-item { margin: 10px; }
.tech-item p:first-child { font-weight: bold; margin: 0; }
.tech-item p:last-child { font-size: 1.5em; margin: 5px 0 0 0; }

.table-container { overflow-x: auto; }
#history-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
#history-table th, #history-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
#history-table thead { background-color: var(--primary-color); color: white; }
.current-row { background-color: var(--highlight-bg); }
.best-score { font-weight: bold; color: var(--rhythm-color); }

.toggle-switch-container { display: flex; align-items: center; margin-top: 8px; }
.toggle-switch-text { margin-left: 10px; font-size: 0.9em; color: #333; }
.toggle-switch-checkbox { display: none; }
.toggle-switch-label {
    display: block;
    width: 48px;
    height: 24px;
    background-color: #ccc;
    border-radius: 12px;
    cursor: pointer;
    position: relative;
    transition: background-color 0.2s ease-in-out;
}
.toggle-switch-label::after {
    content: '';
    display: block;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: left 0.2s ease-in-out;
}
.toggle-switch-checkbox:checked + .toggle-switch-label { background-color: var(--primary-color); }
.toggle-switch-checkbox:checked + .toggle-switch-label::after { left: 26px; }

.checkbox-group label { font-size: 1em; font-weight: normal; color: var(--text-color); }
.checkbox-group input[type="checkbox"] { margin-right: 8px; }

@media (max-width: 768px) {
    body { padding: 10px; }
    .card { padding: 15px; }
    header h1 { font-size: 1.5em; }
    .file-loader label { padding: 10px 15px; }
    #filter-controls { flex-direction: column; align-items: stretch; gap: 20px; }
    .filter-group { min-width: unset; width: 100%; }
    .multi-input-group { flex-wrap: wrap; }
    .multi-input-group select, .multi-input-group input { flex-grow: 1; flex-basis: 100px; }
    .button-group { flex-direction: row; gap: 10px; }
    .button-group button { flex-grow: 1; }
    .song-header { flex-direction: column; align-items: flex-start; gap: 8px; }
    .song-title-artist h2 { font-size: 1.4em; }
    .song-meta p { font-size: 0.9em; }
    .list-header { flex-wrap: wrap; gap: 10px; }
    .list-header h2 { font-size: 1.4em; }
    #song-list li { flex-direction: column; align-items: flex-start; gap: 5px; }
    .list-score { width: 100%; text-align: right; font-size: 1.3em; margin-top: 5px; }
    .total-score-container { font-size: 1.8em; }
    .total-score-container .score-value { font-size: 1.5em; }
}