* {
    margin: 0;
    padding: 0;
    box-sizing: content-box;
}

body {
    background-color: #d4d0c8;
    font-family: Arial, "MS UI Gothic", "ＭＳ ゴシック", Verdana, sans-serif;
    font-size: 13px;
    color: #000000;
}

#form1 {
    width: 640px;
    margin: 0 auto;
    padding: 10px;
}

/* ヘッダー: 典型的なWebForms MasterPage の青グラデ */
.page-header {
    background: linear-gradient(to bottom, #0a246a 0%, #3a6ea8 100%);
    color: #ffffff;
    padding: 7px 12px;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    border: 1px solid #0a246a;
}

.page-header span {
    font-size: 11px;
    font-weight: normal;
    margin-left: 12px;
    opacity: 0.85;
}

/* パネル: WebForms Panel コントロール相当 */
.panel {
    background-color: #ece9d8;
    border: 1px solid #7f9db9;
    margin-bottom: 10px;
    padding: 0;
}

.panel-title {
    background: #d4d0c8;
    border-bottom: 1px solid #7f9db9;
    padding: 4px 10px;
    font-weight: bold;
    font-size: 12px;
    color: #0a246a;
}

.panel-body {
    padding: 10px;
}

/* フォームテーブル */
table.form-table {
    width: 100%;
    border-collapse: collapse;
}

table.form-table td {
    padding: 4px 6px;
    vertical-align: middle;
}

.label-cell {
    width: 110px;
    text-align: right;
    padding-right: 8px;
    white-space: nowrap;
}

/* テキストボックス */
input[type="text"] {
    border: 2px inset #7f9db9;
    background: #ffffff;
    padding: 2px 4px;
    font-family: Arial, "MS UI Gothic", sans-serif;
    font-size: 13px;
    height: 20px;
}

/* ドロップダウン */
select {
    border: 2px inset #7f9db9;
    background: #ffffff;
    padding: 1px 2px;
    font-family: Arial, "MS UI Gothic", sans-serif;
    font-size: 13px;
    height: 24px;
}

/* AutoPostBack ラベル */
.autopostback-note {
    font-size: 10px;
    color: #808080;
    margin-left: 4px;
}

/* Windows Classic ボタン */
.btn {
    background-color: #d4d0c8;
    border-top: 2px solid #ffffff;
    border-left: 2px solid #ffffff;
    border-right: 2px solid #404040;
    border-bottom: 2px solid #404040;
    outline: 1px solid #000000;
    outline-offset: -2px;
    padding: 3px 10px;
    font-family: Arial, "MS UI Gothic", sans-serif;
    font-size: 13px;
    cursor: pointer;
    min-width: 88px;
    color: #000000;
    text-align: center;
}

.btn:hover:not(:disabled) {
    background-color: #e0ddd4;
}

.btn:active:not(:disabled) {
    border-top: 2px solid #404040;
    border-left: 2px solid #404040;
    border-right: 2px solid #ffffff;
    border-bottom: 2px solid #ffffff;
    padding: 4px 9px 2px 11px;
}

.btn:disabled {
    color: #808080;
    cursor: default;
}

/* ボタン列 */
.btn-row {
    display: flex;
    gap: 8px;
    padding: 6px 0;
}

/* 集計テーブル */
table.stats-table {
    border-collapse: collapse;
    width: 100%;
    margin-top: 4px;
}

table.stats-table td {
    padding: 4px 10px;
    border: 1px solid #7f9db9;
    font-size: 13px;
}

table.stats-table .stat-label {
    background: #d4d0c8;
    font-weight: bold;
    width: 160px;
}

table.stats-table .stat-value {
    background: #ffffff;
    font-family: "Courier New", monospace;
}

/* ステータスメッセージ (UpdatePanel的な) */
.status-message {
    background: #ffffc0;
    border: 1px solid #c0b000;
    padding: 4px 10px;
    margin-top: 8px;
    font-size: 12px;
}

.status-message.hidden {
    display: none;
}

/* PostBack オーバーレイ (白フラッシュ) */
#postback-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #ffffff;
    z-index: 9999;
}

/* フッター */
.page-footer {
    border-top: 1px solid #7f9db9;
    padding-top: 6px;
    margin-top: 4px;
    text-align: center;
    font-size: 11px;
    color: #808080;
}

/* ViewState 展開エリア */
.viewstate-section {
    margin-top: 14px;
}

.viewstate-toggle {
    background: none;
    border: none;
    color: #0000cc;
    text-decoration: underline;
    font-size: 11px;
    cursor: pointer;
    font-family: Arial, sans-serif;
    padding: 0;
}

.viewstate-toggle:hover {
    color: #cc0000;
}

.viewstate-box {
    display: none;
    margin-top: 6px;
    border: 1px solid #7f9db9;
    background: #ffffff;
    padding: 8px;
}

.viewstate-box table {
    width: 100%;
    border-collapse: collapse;
    font-size: 11px;
}

.viewstate-box td {
    padding: 3px 6px;
    border: 1px solid #d0d0d0;
    vertical-align: top;
}

.viewstate-box .vs-key {
    background: #ece9d8;
    font-weight: bold;
    white-space: nowrap;
    width: 200px;
}

.viewstate-box .vs-val {
    font-family: "Courier New", monospace;
    font-size: 10px;
    word-break: break-all;
    color: #333;
    max-height: 60px;
    overflow: hidden;
}