/* 資料ダウンロード 専用CSS
   Ctrl+Fで「02 表紙画像」「03 資料説明」「04 ダウンロード」を検索。
   バナーと共通部分はcommon.css・technical-information.cssを再利用。 */

/* #region 01 資料一覧・余白と3列の配置 */
.dl-documents { padding-top: 22px; padding-bottom: 95px; }
.dl-document { display: grid; grid-template-columns: 260px minmax(0,1fr) 245px; gap: 45px; align-items: center; padding: 50px 20px; border-bottom: 1px solid #c5dbee; }
.dl-document:last-child { border-bottom: 0; }
/* #endregion */

/* #region 02 表紙画像・差し替え用プレースホルダー */
.dl-cover { display: block; width: 100%; aspect-ratio: 210 / 280; object-fit: contain; box-shadow: 0 2px 10px #163a5320; }
.dl-placeholder { display: flex; flex-direction: column; align-items: flex-start; justify-content: flex-start; padding: 36px 25px; background: linear-gradient(145deg,#002c49,#001321); color: #fff; overflow-wrap: anywhere; }
.dl-cover-en { font-size: 18px; letter-spacing: .05em; margin-bottom: 14px; }
.dl-cover-title { font-size: 15px; font-weight: 600; line-height: 1.8; }
.dl-cover-pending { margin-top: auto; border-top: 1px solid #ffffff55; padding-top: 15px; font-size: 11px; letter-spacing: .05em; }
.dl-cover-reverse-engineering { background: linear-gradient(145deg,#f4f9fc,#dbeaf5); color: #123b59; }
.dl-cover-reverse-engineering .dl-cover-pending { border-color: #9eb9cf; }
.dl-cover-nfwc { background: linear-gradient(145deg,#06131e,#03324b); }
/* #endregion */

/* #region 03 資料の見出し・説明・PDF情報 */
.dl-document h3 { font: 600 clamp(24px,2.6vw,36px)/1.6 "Yu Mincho","YuMincho",serif; margin-bottom: 17px; }
.dl-description { color: #405b78; font-size: 17px; line-height: 1.9; margin-bottom: 28px; }
.dl-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; color: #496685; font-size: 14px; line-height: 1.8; }
.dl-pdf { display: inline-flex; justify-content: center; align-items: center; background: #ef5059; color: #fff; border-radius: 3px; width: 31px; height: 36px; font-size: 9px; font-weight: 600; }
.dl-meta-divider { color: #9bb4cc; }
/* #endregion */

/* #region 04 ダウンロードボタン・準備中の状態 */
.dl-button { display: flex; align-items: center; justify-content: center; gap: 16px; width: 100%; min-height: 64px; border: 0; border-radius: 2px; background: #001b2e; color: #fff; padding: 17px 22px; font-size: 15px; font-weight: 600; }
.dl-button:disabled { cursor: default; background: #42596b; }
.dl-action p { margin-top: 10px; font-size: 11px; line-height: 1.7; color: #6c8193; text-align: center; }
/* #endregion */

/* #region 05 タブレット・スマートフォン */
@media(max-width:1200px) {
    .dl-document { grid-template-columns: 210px minmax(0,1fr); gap: 25px 35px; }
    .dl-cover { grid-row: span 2; }
    .dl-action { grid-column: 2; max-width: 245px; }
    .dl-description { font-size: 16px; margin-bottom: 18px; }
}
@media(max-width:767px) {
    .dl-documents { padding-top: 0; padding-bottom: 45px; }
    .dl-document { grid-template-columns: 1fr; gap: 25px; padding: 35px 0; }
    .dl-cover { grid-row: auto; width: min(240px,75%); margin: 0 auto; }
    .dl-document h3 { font-size: 25px; margin-bottom: 13px; }
    .dl-description { font-size: 14px; }
    .dl-meta { font-size: 13px; }
    .dl-action { grid-column: auto; max-width: none; }
}
/* #endregion */