/* === 基本設定と変数定義 === */
:root {
    --primary-color: #132e5b;
    --header-bg-color: #132e5b;
    --header-icon-color: #ffffff;
    --background-color: #f8f9fa;
    --text-color: #212529;
    --card-bg-color: #ffffff;
    --border-color: #dee2e6;
    --accent-color: #4a90e2;
    --required-color: #d9534f;
    --header-height: 70px;
    --container-width: 700px; /* ★コンテンツの最大幅を定義 */
    --font-family-base: 'Noto Sans JP', sans-serif;
    --font-family-title: 'Roboto', sans-serif;
}

/* === ダークモード用変数 === */
body.dark-theme {
    --primary-color: #8ab4f8;
    --header-bg-color: #1e1e1e;
    --header-icon-color: #e8eaed;
    --background-color: #121212;
    --text-color: #e8eaed;
    --card-bg-color: #1e1e1e;
    --border-color: #3c4043;
    --accent-color: #8ab4f8;
}

/* === 全体スタイル === */
body {
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-family-base);
    line-height: 1.7;
    margin: 0;
    padding-top: var(--header-height);
    transition: background-color 0.3s, color 0.3s;
}

/* === 新しいシンプルヘッダーのスタイル === */
.global-header {
    background-color: var(--header-bg-color);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
}

/* ★★★この部分が今回の重要な変更点です★★★ */
.header-inner {
    position: relative;
    display: flex;
    justify-content: space-between; /* ★左寄せと右寄せのレイアウトに */
    align-items: center;
    height: 100%;
    max-width: var(--container-width); /* ★下のコンテナと同じ最大幅を指定 */
    margin: 0 auto; /* ★中央揃えにする */
    padding: 0 20px; /* ★左右の余白はコンテナに合わせる */
}

.header-logo img {
    height: 45px;
    width: auto;
    vertical-align: middle;
}
.header-right {
    position: absolute; /* 右端に絶対配置 */
    right: 20px; /* ★.header-innerの右端から20pxの位置 */
    top: 50%;
    transform: translateY(-50%);
}

/* === ダークモードスイッチャー（ヘッダー内） === */
.theme-switcher { position: relative; }
#theme-toggle { display: none; }
.theme-toggle-label {
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}
.theme-toggle-label svg { color: var(--header-icon-color); transition: color 0.3s; }
.sun-icon { display: none; } .moon-icon { display: block; }
body.dark-theme .sun-icon { display: block; } body.dark-theme .moon-icon { display: none; }


/* === ページ本体のコンテナ === */
.container {
    max-width: var(--container-width); /* ★変数で管理 */
    margin: 2rem auto;
    background-color: var(--card-bg-color);
    padding: 2rem;
    border-radius: 8px;
    transition: background-color 0.3s;
}
.page-header { text-align: center; margin-bottom: 2rem; border-bottom: 1px solid var(--border-color); padding-bottom: 1.5rem; }
.page-header h1 { color: var(--primary-color); font-family: var(--font-family-title); font-weight: 700; font-size: 2rem; line-height: 1.4; }
.page-header p { font-size: 1rem; color: var(--text-color); opacity: 0.9; }
h2 { font-family: var(--font-family-title); color: var(--primary-color); border-bottom: 2px solid var(--primary-color); padding-bottom: 0.5rem; margin-bottom: 1.5rem; font-size: 1.5rem; }
section { margin-bottom: 2.5rem; opacity: 1; transition: opacity 0.5s; }
.hidden { display: none !important; opacity: 0; }
.calendar-container { border: 1px solid var(--border-color); border-radius: 8px; padding: 1rem; }
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.calendar-header h3 { margin: 0; font-size: 1.2rem; }
.calendar-header button { background: none; border: 1px solid var(--border-color); border-radius: 50%; width: 36px; height: 36px; cursor: pointer; color: var(--text-color); font-size: 1.5rem; transition: background-color 0.2s, border-color 0.2s; }
.calendar-header button:hover { background-color: var(--primary-color); color: var(--card-bg-color); border-color: var(--primary-color); }
.calendar-header button:disabled { opacity: 0.3; cursor: not-allowed; }
#calendar-body { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; text-align: center; }
#calendar-body div { padding: 0.5rem 0; border-radius: 4px; }
.day-name { font-weight: bold; font-size: 0.9rem; }
.date { cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.date:hover { background-color: var(--accent-color); color: white; }
.date.selected { background-color: var(--primary-color) !important; color: var(--card-bg-color) !important; font-weight: bold; }
.date.past, .date.unavailable { color: var(--text-color); opacity: 0.4; cursor: not-allowed; text-decoration: line-through; pointer-events: none; }
.date.today { border: 2px solid var(--accent-color); }
#time-slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
.time-slot { padding: 0.75rem; border: 1px solid var(--border-color); border-radius: 4px; text-align: center; cursor: pointer; transition: all 0.2s; }
.time-slot:hover { background-color: var(--accent-color); color: white; border-color: var(--accent-color); }
.time-slot.selected { background-color: var(--primary-color) !important; color: var(--card-bg-color) !important; border-color: var(--primary-color); font-weight: bold; }
.time-slot.booked { background-color: var(--background-color); color: var(--text-color); opacity: 0.4; cursor: not-allowed; text-decoration: line-through; pointer-events: none; }
.notice { margin-top: 1.5rem; padding: 1rem; background-color: rgba(255, 165, 0, 0.1); border: 1px solid orange; border-radius: 4px; font-size: 0.9rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: bold; }
.required { background-color: var(--required-color); color: white; padding: 2px 6px; border-radius: 4px; font-size: 0.75rem; margin-left: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 0.75rem; border: 1px solid var(--border-color); border-radius: 4px; background-color: var(--background-color); color: var(--text-color); font-size: 1rem; box-sizing: border-box; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent-color); box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2); }
.submit-btn { display: block; width: 100%; padding: 1rem; background-color: var(--primary-color); color: white; border: none; border-radius: 4px; font-size: 1.2rem; font-weight: bold; cursor: pointer; transition: background-color 0.2s, transform 0.1s; }
.submit-btn:hover { background-color: #0c244a; }
body.dark-theme .submit-btn { color: #1e1e1e; }
body.dark-theme .submit-btn:hover { background-color: #a0c3f0; }
.submit-btn:active { transform: translateY(1px); }
.submit-btn:disabled { opacity: 0.5; cursor: wait; }
#message-container { text-align: center; }
#message-container a { color: var(--accent-color); }
@media (max-width: 600px) {
    body { padding-top: 60px; }
    .global-header { height: 60px; }
    .header-logo img { height: 35px; }
    .header-right { right: 15px; }
    .container { padding: 1.5rem 1rem; margin: 1rem auto; }
    .page-header h1 { font-size: 1.8rem; }
    .page-header p { font-size: 0.9rem; }
    h2 { font-size: 1.3rem; }
}

/* === ロゴと会社名のスタイル === */
.site-branding {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--header-icon-color);
}
.site-logo {
    height: 45px;
    width: auto;
    vertical-align: middle;
    margin-right: 12px; /* ロゴと文字の間隔 */
}
.site-name {
    font-family: 'Play', sans-serif; /* Google Fontsを適用 */
    font-weight: 700; /* Bold */
    font-size: 1.5rem; /* 文字サイズはお好みで調整してください */
    line-height: 1;
}

/* スマホ用のサイズ調整 */
@media (max-width: 600px) {
    .site-logo {
        height: 35px;
        margin-right: 10px;
    }
    .site-name {
        font-size: 1.2rem;
    }
}