/* ==========================================================
   右下固定 資料DL CTA（.dl-cta）
   - 高さは中身に追従（JS で高さを指定しない）
   - 状態は data-state="open" | "min" で切り替え
   - アクセント色は要素の style 属性で --dl-accent / --dl-accent-text を上書き
   - ボタン・上端ラインをグラデーションにする場合は --dl-accent-bg を上書き
   ========================================================== */
.dl-cta {
  --dl-accent: #1f6feb;
  --dl-accent-text: #fff;
  --dl-accent-bg: var(--dl-accent);
  --dl-ink: #1a1a1a;
  --dl-muted: #5c6370;
  --dl-line: #e6e8eb;
  --dl-radius: 14px;
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  width: 320px;
  max-width: calc(100vw - 24px);
  color: var(--dl-ink);
  font-size: 14px;
  line-height: 1.5;
  text-align: left;
  transition: opacity .3s ease, transform .3s ease, visibility .3s;
}
.dl-cta *,
.dl-cta *::before,
.dl-cta *::after { box-sizing: border-box; }
.dl-cta a { text-decoration: none; }
.dl-cta img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* フッター付近では隠す */
.dl-cta.is-hidden {
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  pointer-events: none;
}

/* ---------- パネル（開いた状態） ---------- */
.dl-cta__panel {
  position: relative;
  padding: 18px 18px 16px;
  background: #fff;
  border: 1px solid var(--dl-line);
  border-radius: var(--dl-radius);
  box-shadow: 0 12px 32px rgba(15, 23, 42, .18), 0 2px 6px rgba(15, 23, 42, .08);
  transform-origin: bottom right;
  transition: opacity .25s ease, transform .25s ease;
}
.dl-cta__panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  height: 5px;
  border-radius: var(--dl-radius) var(--dl-radius) 0 0;
  background: var(--dl-accent-bg);
}
.dl-cta[data-state="min"] .dl-cta__panel { display: none; }

.dl-cta__close {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--dl-muted);
  cursor: pointer;
  transition: background-color .2s;
}
.dl-cta__close:hover { background: #f1f3f5; color: var(--dl-ink); }
.dl-cta__close:focus-visible,
.dl-cta__tab:focus-visible,
.dl-cta__btn:focus-visible,
.dl-cta__thumb:focus-visible {
  outline: 3px solid var(--dl-accent);
  outline-offset: 2px;
}
.dl-cta__close svg { width: 16px; height: 16px; }

.dl-cta__badge {
  display: inline-block;
  margin: 0 0 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #f1f3f5;
  color: var(--dl-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
}
.dl-cta__title {
  margin: 0 36px 12px 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--dl-ink);
}

/* 資料サムネイル（2枚重ね） */
.dl-cta__thumbs {
  position: relative;
  display: flex;
  align-items: flex-end;
  margin: 0 0 12px;
  padding: 0 0 4px;
}
.dl-cta__thumb {
  display: block;
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 4px 12px rgba(15, 23, 42, .18);
  transition: transform .25s ease;
}
.dl-cta__thumb--main {
  position: relative;
  z-index: 2;
  width: 66%;
}
.dl-cta__thumb--sub {
  z-index: 1;
  width: 50%;
  margin-left: -16%;
  transform: translateY(-14px);
}
.dl-cta__thumb--main:hover { transform: translateY(-2px); }
.dl-cta__thumb--sub:hover { transform: translateY(-16px); }


.dl-cta__points {
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  color: var(--dl-muted);
}
.dl-cta__points li {
  position: relative;
  margin: 0;
  padding-left: 18px;
  line-height: 1.6;
}
.dl-cta__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .45em;
  width: 8px;
  height: 5px;
  border-left: 2px solid var(--dl-accent);
  border-bottom: 2px solid var(--dl-accent);
  transform: rotate(-45deg);
}

.dl-cta__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 48px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--dl-accent-bg);
  color: var(--dl-accent-text) !important;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  box-shadow: 0 4px 12px rgba(15, 23, 42, .16);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.dl-cta__btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(15, 23, 42, .22);
  filter: brightness(1.05);
}
.dl-cta__btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.dl-cta__note {
  margin: 8px 0 0;
  font-size: 11px;
  color: var(--dl-muted);
  text-align: center;
}

/* ---------- タブ（最小化した状態） ---------- */
.dl-cta__tab {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 12px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--dl-accent-bg);
  color: var(--dl-accent-text);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .22);
  transition: transform .2s ease;
}
.dl-cta__tab:hover { transform: translateY(-2px); }
.dl-cta__tab svg { width: 18px; height: 18px; flex-shrink: 0; }
.dl-cta[data-state="min"] { width: auto; }
.dl-cta[data-state="min"] .dl-cta__tab { display: flex; }

/* 開閉アニメーション */
.dl-cta.is-animating .dl-cta__panel { animation: dl-cta-in .3s ease both; }
@keyframes dl-cta-in {
  from { opacity: 0; transform: translateY(12px) scale(.97); }
  to   { opacity: 1; transform: none; }
}

/* ---------- スマホ：横並びのコンパクト表示 ---------- */
@media (max-width: 600px) {
  .dl-cta {
    right: 12px;
    bottom: 12px;
    width: calc(100vw - 24px);
  }
  .dl-cta__panel {
    display: grid;
    grid-template-columns: 92px 1fr;
    grid-template-areas:
      "thumbs title"
      "thumbs btn";
    column-gap: 12px;
    row-gap: 8px;
    align-items: center;
    padding: 14px 12px 12px;
  }
  .dl-cta__badge,
  .dl-cta__points,
  .dl-cta__note,
  .dl-cta__thumb--sub { display: none; }
  .dl-cta__thumbs { grid-area: thumbs; margin: 0; padding: 0; }
  .dl-cta__thumb--main { width: 100%; }
  .dl-cta__title {
    grid-area: title;
    margin: 0 28px 0 0;
    font-size: 13px;
    line-height: 1.4;
  }
  .dl-cta__title br { display: none; }
  .dl-cta__btn {
    grid-area: btn;
    min-height: 40px;
    padding: 8px 12px;
    font-size: 13px;
  }
  .dl-cta__close { top: 4px; right: 4px; }
  .dl-cta[data-state="min"] { width: auto; }
  .dl-cta__tab { padding: 10px 16px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  .dl-cta,
  .dl-cta * { transition: none !important; animation: none !important; }
}