:root {
    --primary-color: #e74c3c; /* 麻辣湯イメージに合わせて赤系に変更 */
    --primary-dark: #c0392b;
    --accent-color: #d35400;
    --bg-color: #fdfaf9;
    --card-bg: #ffffff;
    --text-main: #2c3e50;
    --text-muted: #7f8c8d;
    --border-color: #f5e6e4;
    --transition: all 0.25s ease-in-out;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
}

.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 12px 20px;
}
.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-dark);
    letter-spacing: 1px;
}
.lang-switch {
    display: flex;
    gap: 6px;
}
.btn-lang {
    background: #fdf0ef;
    border: 1px solid transparent;
    padding: 5px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 15px;
    transition: var(--transition);
}
.btn-lang.active, .btn-lang:hover {
    background: var(--primary-color);
    color: white;
}

/* ヒーローヘッダーエリアの修正 */
header, .hero-header {
    position: relative;
    /* 背景画像の設定：中央配置、覆い尽くすサイズ、固定（またはscroll） */
    background: url('../images/back.jpg') center center / cover no-repeat;
    padding: 100px 20px; /* 上下の余白（画像の見える広さ）を調整 */
    text-align: center;
    color: #ffffff; /* 文字色を完全に白に固定 */
    overflow: hidden;
    z-index: 1;
}

/* 画像の上に暗いフィルターをかけて文字を読みやすくする（重要） */
header::before, .hero-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 黒の透過グラデーションを重ねてシネマティックに */
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.4));
    z-index: -1;
}

/* ヘッダー内のテキストの調整 */
#ui-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); /* 文字に影をつけてさらにクッキリ */
}

#ui-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}
.main-container {
    max-width: 1100px;
    margin: 30px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 30px;
}

@media (max-width: 850px) {
    .main-container {
        grid-template-columns: 1fr;
    }
}

.filter-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    align-self: start;
}
.btn-nearme {
    width: 100%;
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 20px;
    transition: var(--transition);
}
.btn-nearme:hover {
    opacity: 0.9;
}
.search-box input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #eccbc8;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.filter-group {
    margin-bottom: 22px;
}
.filter-group h3 {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.area-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 6px;
    margin-top: 10px;
    margin-bottom: 15px;
}
.btn-area {
    background-color: #fef2f0;
    color: #4b5563;
    border: 1px solid #f5d6d2;
    padding: 6px 12px;
    font-size: 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.btn-area:hover {
    background-color: #fcdad5;
    color: #1f2937;
}
.btn-area.active {
    background-color: var(--primary-color);
    color: #ffffff;
    border-color: var(--primary-color);
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(231, 76, 60, 0.2);
}

.filter-options label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

.sidebar-counter {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px dashed var(--border-color);
    text-align: center;
}
#results-count {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
}
#count-num {
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 0.95rem;
}

.results-section {
    padding-top: 0;
}
.store-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}
.store-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 3px 10px rgba(0,0,0,0.01);
    transition: transform 0.2s;
}
.store-card:hover {
    transform: translateY(-3px);
}
.card-body {
    padding: 20px;
}
.card-header-flex {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}
.area-badge {
    background: #fde8e6;
    color: var(--primary-dark);
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 700;
}
.price-badge {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 0.9rem;
}
.store-name {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--text-main);
}
.store-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}
.card-tags-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.feature-badge {
    font-size: 0.75rem;
    color: #7f8c8d;
    background: #fbeee3;
    padding: 2px 6px;
    border-radius: 4px;
}
.distance-badge-inline {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.card-footer-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--border-color);
}
.btn-action {
    text-align: center;
    padding: 12px;
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}
.btn-visit {
    background: #ffffff;
    color: var(--primary-dark);
    word-break: break-all;
}
.btn-visit:hover {
    background: #fdf5f4;
}
.btn-maps {
    background: var(--primary-color);
    color: white;
}
.btn-maps:hover {
    background: var(--primary-dark);
}

footer {
    background: #ffffff;
    border-top: 1px solid var(--border-color);
    padding: 40px 20px;
    margin-top: 60px;
    text-align: center;
}
.footer-container {
    max-width: 600px;
    margin: 0 auto;
}
.footer-share-section {
    margin-bottom: 25px;
}
.share-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}
.share-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}
.share-btn {
    display: inline-block;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}
.share-btn:hover {
    opacity: 0.85;
}
.share-btn.whatsapp { background-color: #25d366; }
.share-btn.wechat   { background-color: #07c160; }
.share-btn.line     { background-color: #06c755; }
.share-btn.copy-link { background-color: #6c757d; }

.disclaimer-box {
    background: #fdfcfb;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 20px;
    text-align: left;
}
#ui-footer-disclaimer {
    font-size: 0.75rem;
    line-height: 1.5;
    color: var(--text-muted);
    margin: 0;
}
.copyright {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

@media (max-width: 768px) {
    .navbar {
        padding: 8px 12px !important;
    }
    .nav-logo {
        font-size: 1.05rem !important;
        white-space: nowrap !important;
        letter-spacing: 0.5px !important;
    }
    .lang-switch {
        gap: 4px !important;
    }
    .btn-lang {
        padding: 4px 8px !important;
        font-size: 0.75rem !important;
    }
    header { padding: 50px 15px !important; }
    header h1, #hero-title { font-size: 1.6rem !important; margin-bottom: 8px !important; }
    header p, #hero-subtitle { font-size: 0.85rem !important; line-height: 1.4 !important; }
    .filter-card { padding: 10px !important; margin-bottom: 10px !important; }
    .btn-nearme { padding: 8px !important; margin-bottom: 10px !important; font-size: 0.9rem !important; }
    .search-box input { padding: 6px 10px !important; margin-bottom: 10px !important; }
    .filter-group { margin-bottom: 8px !important; }
    .filter-group h3 { font-size: 0.8rem !important; margin-bottom: 4px !important; }
    .filter-options label { margin-bottom: 2px !important; font-size: 0.85rem !important; }
    #area-buttons { margin-top: 2px !important; margin-bottom: 2px !important; gap: 4px 4px !important; }
    .btn-area { padding: 2px 8px !important; font-size: 0.7rem !important; }
}