/* ==========================================================================
   共通の構造スタイル
   ========================================================================== */
body {
    margin: 0;
    padding: 0;
}

.section {
    padding: 20px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

.btn-submit {
    width: 100%;
    padding: 12px;
}

/* ==========================================================================
   ログインページ (`login.html`) の構造
   ========================================================================== */
body#login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#login-page .container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    text-align: center;
}

/* ==========================================================================
   管理ページ (`admin.html`) の構造
   ========================================================================== */
#admin-page .container {
    max-width: none; /* 幅の制限をなくす */
    margin: auto;
    padding: 10px;
}

#admin-page .header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    margin-bottom: 10px;
}

#admin-page .header h1 {
    margin: 0;
}

#admin-page .section h2 {
    margin-top: 0;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
    margin-bottom: 15px;
}

#admin-page table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

#admin-page table, #admin-page th, #admin-page td {
    border: 1px solid #ddd;
}

#admin-page th, #admin-page td {
    padding: 12px;
    text-align: left;
}

#admin-page .logout-btn {
    padding: 10px 15px;
}

/* --- 予約カレンダー --- */
#custom-calendar {
    width: 100%;
    border: 1px solid #ddd;
    display: flex;
    flex-direction: column;
}
.calendar-nav {
    display: flex;
    align-items: center;
    padding: 10px;
    gap: 15px;
}
.calendar-nav h3 {
    margin: 0 auto; /* 中央に配置 */
}
.timeline-header, .timeline-row {
    display: flex;
    flex-direction: row;
}
.timeline-header {
    border-bottom: 1px solid #ddd;
    position: sticky;
    top: 0;
    z-index: 10;
    min-height: 40px;
    background-color: #f5f5f5;
}
.timeline-corner, .date-label {
    flex: 0 0 100px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid #ddd;
    background-color: #f9f9f9;
}
.timeline-header-main {
    flex: 1;
    display: flex;
}
.hour-label {
    flex: 1;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid #eee;
}
.timeline-body {
    display: flex;
    flex-direction: column;
}
.timeline-row {
    position: relative;
    border-bottom: 1px solid #ddd;
}
.grid-area {
    flex: 1;
    display: flex;
    position: relative;
}
.grid-cell {
    flex: 1;
    box-sizing: border-box;
    box-shadow: -1px 0 0 0 #eee inset;
    cursor: pointer;
}
.reservation-block {
    position: absolute;
    box-sizing: border-box;
}

/* --- 予約追加モーダル --- */
.modal-overlay {
    display: none;
    position: fixed;
    top:0;
    left:0;
    width:100%;
    height:100%;
    background: rgba(0,0,0,0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}
.modal-content {
    background: white;
    padding: 20px;
    border-radius: 6px;
    width: 300px;
}
.form-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}


/* ==========================================================================
   キャンセル待ちページ (`index.html`) の構造
   ========================================================================== */
#index-page .container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
}

#index-page h1 {
    text-align: center;
}

#index-page .form-message {
    margin-top: 15px;
    padding: 10px;
    text-align: center;
    display: none;
}

#index-page .info-box {
    padding: 15px;
    margin-bottom: 20px;
}

#index-page .closed-dates-list {
    padding-left: 0;
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

#index-page .closed-date-item:not(:last-child)::after {
    content: ",";
}

#index-page .month-group {
    width: 100%;
    margin-top: 10px;
}