:root {
    --primary: #FF7043;
    --primary-dark: #F4511E;
    --secondary: #FFB74D;
    --bg-color: #FFF8F1;
    --panel-bg: #FFFFFF;
    --text-main: #3E2723;
    --text-muted: #795548;
    --accent: #E91E63;
    --facebook: #1877F2;
    --twitter: #1DA1F2;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 0.8rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    z-index: 1000;
}

.title-group { display: flex; align-items: baseline; gap: 10px; }
.title-group h1 { font-size: 1.2rem; white-space: nowrap; }
.subtitle { font-size: 0.75rem; opacity: 0.9; font-weight: normal; }

.controls { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
input[type="date"], input[type="text"], select {
    padding: 0.4rem;
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    outline: none;
}

button {
    background-color: white;
    color: var(--primary-dark);
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    font-size: 0.85rem;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    gap: 4px;
}
button:hover { opacity: 0.8; }
.btn-share-x { background-color: var(--twitter); color: white; }
.btn-share-fb { background-color: var(--facebook); color: white; }
.btn-fav { background-color: var(--accent); color: white; }

main { display: flex; flex: 1; overflow: hidden; }
#map { flex: 2; height: 100%; }
#info-panel {
    flex: 1;
    min-width: 320px;
    max-width: 380px;
    background: var(--panel-bg);
    padding: 1.2rem;
    overflow-y: auto;
    box-shadow: -2px 0 10px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card {
    background: var(--bg-color);
    border-radius: 8px;
    padding: 1rem;
    border-left: 5px solid var(--primary);
}

.info-card h3 { color: var(--primary-dark); margin-bottom: 0.5rem; font-size: 0.95rem; }
.data-row { display: flex; justify-content: space-between; margin-bottom: 0.3rem; font-size: 0.85rem; }

#fav-list { margin-top: 10px; list-style: none; }
.fav-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #fff;
    padding: 8px 10px;
    margin-bottom: 5px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    border: 1px solid #eee;
}
.fav-item:hover { background: #fff5f0; }
.fav-actions { display: flex; gap: 8px; align-items: center; }
.btn-edit-fav { color: var(--text-muted); cursor: pointer; font-size: 0.9rem; }
.btn-edit-fav:hover { color: var(--primary-dark); }
.del-fav { color: #ccc; cursor: pointer; padding: 0 5px; font-size: 1.1rem; }
.del-fav:hover { color: red; }

/* レスポンシブデザインの調整 */
@media (max-width: 768px) {
    main { flex-direction: column; }
    #map { height: 35vh; flex: none; }
    #info-panel { max-width: 100%; }
    
    header {
        padding: 0.6rem;
    }
    .title-group h1 { font-size: 1.1rem; }
    .subtitle { display: none; } /* 狭い画面ではサブタイトルを隠してスペースを確保 */

    .controls {
        flex-wrap: nowrap; /* 1行に収める */
        width: 100%;
        gap: 4px; /* ボタン間の隙間を狭くする */
    }
    
    .controls select,
    .controls input[type="date"],
    .controls button {
        font-size: 0.75rem; /* フォントサイズを小さく */
        padding: 0.3rem 0.4rem; /* 余白を小さく */
        min-width: 0;
    }
    
    #langMenu { flex-shrink: 1; width: auto; }
    #datePicker { flex-shrink: 1; width: auto; }
    
    /* お気に入りボタンのテキストを短縮して1行に収めやすくする */
    .btn-fav { white-space: nowrap; flex-shrink: 0; }
    .btn-share-x, .btn-share-fb { padding: 0.3rem 0.5rem; flex-shrink: 0; }
}