/* =========================================================
   コラム記事のサイドバー：資料ダウンロードフォーム
   参考：BIRDY のサイドバーフォーム（ブランド色の見出し＋グレーの面＋大きめの入力欄＋大きなボタン）
   ========================================================= */

/* フォームがあるコラム記事は、サイドバーを広げて本文とのバランスをとる（PC） */
@media screen and (min-width: 969px) {
    .pageflex-inner:has(.columnform) { max-width: 1120px; }
    .pageflex-inner:has(.columnform) .pageflex-main { width: calc(100% - 370px); }
    .pageflex-inner:has(.columnform) .sidebar { width: 300px; }
}
@media screen and (min-width: 769px) and (max-width: 968px) {
    .pageflex-inner:has(.columnform) .pageflex-main { width: calc(100% - 290px); }
    .pageflex-inner:has(.columnform) .sidebar { width: 260px; }
}

/* スクロールに追従（PC）。内容が画面より長い場合は内部でスクロール（バーは出さない） */
@media screen and (min-width: 769px) {
    .sidebar:has(.columnform) {
        position: sticky;
        top: 110px;
        max-height: calc(100vh - 130px);
        overflow-y: auto;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }
    .sidebar:has(.columnform)::-webkit-scrollbar { display: none; }
}

/* サイドバー：外枠を外して、フォームを主役にする */
.sidebar:has(.columnform) { border: 0; padding: 0; background: none; }
.columnform { margin-bottom: 22px !important; }
.columnform__ttl {
    margin: 0 0 10px;
    font-size: 20px;
    font-weight: 900;
    line-height: 1.4;
    color: var(--main-theme-color, #0A32FF);
}
.columnform .wpcf7 { padding: 16px 14px 18px; background: #f3f4f6; border-radius: 4px; }

/* --- CF7 フォーム本体 --- */
.columnform .wpcf7 p { margin: 0; }
.columnform .wpcf7 br { display: none; }
.columnform .colform__row { margin: 0 0 14px !important; }
.columnform .colform__row label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    color: #1f2937;
}
.columnform .colform__req,
.columnform .colform__opt {
    margin-left: 6px;
    font-size: 12px;
    font-weight: 700;
}
.columnform .colform__req { color: var(--accent-color, #F37600); }
.columnform .colform__opt { color: #707070; }
.columnform .wpcf7-form-control-wrap { display: block; }
.columnform input[type="text"],
.columnform input[type="email"],
.columnform input[type="tel"],
.columnform select {
    display: block;
    width: 100%;
    height: 46px;
    padding: 0 12px;
    border: 1px solid #d5d8de;
    border-radius: 4px;
    background: #fff;
    font-size: 14px;
    line-height: 1.4;
    color: #222;
    box-sizing: border-box;
}
.columnform select {
    padding-right: 34px;
    text-overflow: ellipsis;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, #555 50%), linear-gradient(135deg, #555 50%, transparent 50%);
    background-position: calc(100% - 17px) 20px, calc(100% - 12px) 20px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}
.columnform input:focus,
.columnform select:focus {
    outline: 2px solid var(--main-theme-color, #0A32FF);
    outline-offset: 0;
    border-color: var(--main-theme-color, #0A32FF);
}
.columnform input::placeholder { color: #9aa1ac; }
.columnform .colform__policy {
    margin: 4px 0 14px;
    font-size: 12px;
    line-height: 1.6;
}
.columnform .colform__policy .wpcf7-list-item { margin: 0; }
.columnform .colform__policy label { display: flex; align-items: flex-start; gap: 6px; margin: 0; font-size: 12px; font-weight: 500; color: #333; }
.columnform .colform__policy input[type="checkbox"] { margin-top: 3px; flex-shrink: 0; }
.columnform .colform__policy a { color: var(--main-theme-color, #0A32FF); text-decoration: underline; }
.columnform .colform__btn { margin: 0 !important; }
.columnform .wpcf7-submit {
    display: block;
    width: 100%;
    padding: 18px 8px;
    border: 0;
    border-radius: 6px;
    font-size: 17px;
    font-weight: 900;
    cursor: pointer;
    color: #fff;
}
.columnform .wpcf7-not-valid-tip { margin-top: 3px; font-size: 11px; color: #c62828; }
.columnform .wpcf7 form .wpcf7-response-output {
    margin: 12px 0 0;
    padding: 8px 10px;
    font-size: 12px;
    line-height: 1.5;
}

/* スマホ：サイドバーは記事の下に並ぶ。iOSの自動ズームを避けるため入力文字は16px */
@media screen and (max-width: 768px) {
    .columnform input[type="text"],
    .columnform input[type="email"],
    .columnform input[type="tel"],
    .columnform select { font-size: 16px; }
    .columnform select { background-position: calc(100% - 17px) 20px, calc(100% - 12px) 20px; }
}