/* ============================================================
  サイト共通ヘッダー・フッター (全ページで読み込み)
  main.css の変数・共通クラス(.btn, .comic-card, .comic-grid, .no-image 等)を
  そのまま流用し、新規要素だけをここに追加している。
============================================================ */

body { background: #fff; }

/* ---------- Header ---------- */
.km-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.km-header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
  width: 100%;
  padding: 0 32px;
}

.km-brand img { display: block; }

.km-nav {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 22px;
  font-weight: 700;
  font-size: 14px;
}

.km-nav-item { position: relative; }

.km-nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--ink);
  white-space: nowrap;
}

.km-nav-item > a:hover { color: var(--pink); }

.km-caret { font-size: 10px; }

.km-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 5;
  min-width: 180px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 14px 30px rgba(44, 25, 39, 0.14);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
}

.km-nav-item.has-dropdown:hover .km-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.km-dropdown a {
  display: block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.km-dropdown a:hover { background: var(--paper); color: var(--pink); }

.km-header-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}

.km-header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 280px;
  padding: 0 14px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
}

.km-header-search input {
  flex: 1;
  border: 0;
  background: none;
  height: 100%;
  font: inherit;
  font-size: 13px;
}

.km-header-search button {
  border: 0;
  background: none;
  color: var(--pink);
  cursor: pointer;
  display: flex;
}

.km-menu-toggle {
  display: none;
  border: 0;
  background: none;
  color: var(--ink);
  cursor: pointer;
}

/* ハンバーガーメニュー: 左からのスライドイン式ドロワー+背景オーバーレイ */
.km-nav-mobile {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 70;
  width: min(320px, 86vw);
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: #fff;
  padding: 28px 24px;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.28s ease;
}

.km-nav-mobile.is-open {
  transform: translateX(0);
  box-shadow: 20px 0 50px rgba(44, 25, 39, 0.18);
}

.km-nav-mobile a {
  padding: 10px 4px;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.km-nav-mobile form.km-header-search {
  width: 100%;
  margin-top: 10px;
}

.km-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 65;
  background: rgba(43, 29, 46, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

.km-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* ---------- Footer ---------- */
.km-footer {
  background: var(--dark);
  color: #fff;
  padding: 48px 0 28px;
  text-align: center;
}

.km-footer-inner { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.km-footer-brand img { display: block; filter: brightness(0) invert(1); }

.km-footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  font-weight: 700;
}

.km-footer-nav a { color: rgba(255, 255, 255, 0.82); }
.km-footer-nav a:hover { color: #fff; }

.km-footer-tagline { font-size: 13px; color: rgba(255, 255, 255, 0.7); margin: 0; }

.km-footer-social { display: flex; gap: 14px; }
.km-footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}
.km-footer-social a:hover { background: var(--pink); }

.km-footer-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.km-footer-badges img { display: block; border-radius: 4px; }

.km-footer-copyright { font-size: 12px; color: rgba(255, 255, 255, 0.55); margin: 6px 0 0; }

/* ---------- どんな探し方をしますか？(フッター直前のCTA帯、全ページ共通) ---------- */
.km-howto {
  padding: 80px 0;
}
.km-section-kicker {
  text-align: center;
  font-size: 20px;
  margin: 0 0 24px;
}

.km-howto-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.km-howto-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
  transition: transform 0.2s, box-shadow 0.2s;
}

.km-howto-card:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(44, 25, 39, 0.1); }

.km-howto-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.km-howto-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.km-howto-icon img {
  width: 22px;
  height: 22px;
  display: block;
}

.km-howto-headtext {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.km-howto-label {
  font-size: 12px;
  font-weight: 800;
}

.km-howto-title {
  font-size: 17px;
  font-weight: 900;
  color: var(--dark);
  line-height: 1.4;
}

.km-howto-corner {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 28px;
  height: 28px;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.km-howto-card.is-search { background: linear-gradient(160deg, #fdeef3 0%, #fff 100%); }
.km-howto-card.is-search .km-howto-icon,
.km-howto-card.is-search .km-howto-corner { background: #e85d8d; }
.km-howto-card.is-search .km-howto-label { color: #e85d8d; }

.km-howto-card.is-fsti { background: linear-gradient(160deg, #efeafd 0%, #fff 100%); }
.km-howto-card.is-fsti .km-howto-icon,
.km-howto-card.is-fsti .km-howto-corner { background: #6c4fd6; }
.km-howto-card.is-fsti .km-howto-label { color: #6c4fd6; }

.km-howto-card.is-word { background: linear-gradient(160deg, #e9f2fc 0%, #fff 100%); }
.km-howto-card.is-word .km-howto-icon,
.km-howto-card.is-word .km-howto-corner { background: #1e6fd9; }
.km-howto-card.is-word .km-howto-label { color: #1e6fd9; }

.km-howto-card.is-trend { background: linear-gradient(160deg, #fff2df 0%, #fff 100%); }
.km-howto-card.is-trend .km-howto-icon,
.km-howto-card.is-trend .km-howto-corner { background: #d98c1f; }
.km-howto-card.is-trend .km-howto-label { color: #d98c1f; }

.km-howto-card p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.6; }

/* ---------- スマホ ---------- */
@media (max-width: 900px) {
  .km-header-inner { padding: 0 16px; }
  .km-nav, .km-header-search { display: none; }
  .km-menu-toggle { display: block; }
  .km-howto { padding: 48px 0; }
  .km-howto-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .km-howto-grid { grid-template-columns: 1fr; }
}