@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Montserrat:wght@400;600&display=swap');

/* =============================================
   インプラス共通ヘッダー  implus-header.css
   全ページの既存ヘッダーHTMLと差し替えて使用
   ============================================= */

/* ── ヘッダー内のリセット（全ページ共通で揃える） ── */
.implus-header,
.implus-header * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
.implus-header img {
  vertical-align: middle;
  border: none;
  max-width: none;
  display: block;
}
.implus-header a {
  text-decoration: none;
  color: inherit;
}
.implus-header ul {
  list-style: none;
}

.implus-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, #001433 0%, #002266 100%);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.implus-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── ロゴ ── */
.implus-header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.implus-header__logo img {
  height: 32px;
  display: block;
  mix-blend-mode: screen;
}

/* ── ナビゲーション ── */
.implus-header__nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.implus-header__nav li a {
  display: block;
  padding: 8px 16px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  letter-spacing: 0.5px;
  border-radius: 6px;
  transition: background .18s, color .18s;
  white-space: nowrap;
}

.implus-header__nav li a:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

/* アクティブページ（現在のページ）*/
.implus-header__nav li a.is-active {
  background: rgba(0, 180, 255, 0.15);
  color: #00b4ff;
  font-weight: 700;
}

/* お問合せだけCTAボタン風に */
.implus-header__nav li a.is-cta {
  border: 1px solid rgba(0, 180, 255, 0.5);
  color: #00b4ff;
  margin-left: 8px;
}

.implus-header__nav li a.is-cta:hover {
  background: rgba(0, 180, 255, 0.2);
  border-color: #00b4ff;
  color: #ffffff;
}

/* ── アクセントライン（下部） ── */
.implus-header::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(to right, #00b4ff, #0059cc, transparent);
}

/* ── レスポンシブ ── */
@media (max-width: 768px) {
  .implus-header__inner {
    padding: 0 20px;
    height: 56px;
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 10px;
  }

  .implus-header__nav {
    gap: 2px;
    flex-wrap: wrap;
  }

  .implus-header__nav li a {
    font-size: 12px;
    padding: 6px 10px;
  }
}