/* =========================================================
   梅雨データベース 共通デザインシステム
   Header Ver.1.0
   ========================================================= */

/* ---------- 共通ヘッダー ---------- */

.site-header {
  color: #ffffff;
  padding: 34px 0 30px;
}

.site-header .header-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

/* ---------- テーマ ---------- */

.site-header.theme-blue {
  background: linear-gradient(135deg, #2556dc 0%, #38bdf8 100%);
}

.site-header.theme-orange {
  background: linear-gradient(135deg, #c95c00 0%, #ffca18 100%);
}

.site-header.theme-neutral {
  background: linear-gradient(135deg, #5b3fb4 0%, #8b7de8 100%);
}

/* ---------- パンくず ---------- */

.site-header .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0 0 7px;
  padding: 0;
  font-size: 0.82rem;
  line-height: 1.4;
  color: #ffffff;
}

.site-header .breadcrumb a {
  color: #ffffff;
  text-decoration: none;
}

.site-header .breadcrumb a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ---------- ページタイトル ---------- */

.site-header .page-title-group {
  margin: 0;
}

.site-header .page-title-group h1 {
  margin: 0;
  padding: 0;
  border: 0;
  color: #ffffff;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.site-header .page-subtitle {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(0.92rem, 1.6vw, 1.05rem);
  line-height: 1.7;
}

/* ---------- スマートフォン ---------- */

@media (max-width: 640px) {
  .site-header {
    padding: 26px 0 24px;
  }

  .site-header .header-inner {
    width: min(100% - 28px, 1180px);
  }

  .site-header .breadcrumb {
    font-size: 0.76rem;
  }

  .site-header .page-title-group h1 {
    font-size: 1.8rem;
  }

  .site-header .page-subtitle {
    margin-top: 8px;
    font-size: 0.88rem;
  }
}