:root {
  --primary: #7f3150;
  --accent: #c9943f;
  --bg: #fffaf5;
  --surface: #ffffff;
  --text: #2c2228;
  --muted: #6f5f66;
  --line: #eadbd2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.75;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 250, 245, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand,
.site-header nav,
.actions,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

.logo {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
}

.site-header nav a,
.site-footer nav a {
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.nav-toggle {
  display: none;
}

.hero {
  min-height: 76vh;
  display: grid;
  align-items: center;
  padding: clamp(72px, 10vw, 128px) clamp(20px, 6vw, 88px);
  color: #fff;
  background: linear-gradient(110deg, rgba(50, 24, 37, 0.88), rgba(127, 49, 80, 0.72)), url("/assets/ogp.svg") center / cover;
}

.hero > div {
  max-width: 760px;
}

.hero h1 {
  margin: 8px 0 18px;
  font-family: Georgia, serif;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 1.08;
}

.section {
  padding: 72px clamp(20px, 5vw, 72px);
}

.container,
.article,
.breadcrumb {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.section-title p,
.hero p:first-child,
.post-card > p,
.article > p {
  margin: 0 0 6px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0;
}

.section-title h2 {
  margin: 0 0 28px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
}

.card-grid,
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.card,
.post-card,
.split,
.cta,
.toolbar,
.news article,
.faq details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.card,
.post-card,
.split,
.cta,
.toolbar,
.faq details {
  padding: 24px;
}

.post-card span {
  display: inline-block;
  margin: 8px 8px 0 0;
  padding: 2px 8px;
  border-radius: 999px;
  background: #f4e8df;
  color: var(--muted);
  font-size: 12px;
}

.split,
.cta {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
}

.flow {
  display: grid;
  gap: 14px;
  padding-left: 24px;
}

.faq {
  display: grid;
  gap: 12px;
}

.news {
  display: grid;
  gap: 12px;
}

.news article {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
  padding: 18px 22px;
}

.toolbar {
  display: grid;
  gap: 14px;
  margin-bottom: 22px;
}

.toolbar input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.toolbar a,
.share a {
  display: inline-block;
  margin: 0 8px 8px 0;
  color: var(--primary);
  font-weight: 700;
}

.article {
  padding: 72px 20px 28px;
}

.article h1 {
  margin: 8px 0 24px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.2;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  text-decoration: none;
  font-weight: 700;
}

.button.primary,
.button.small {
  background: var(--primary);
  color: #fff;
}

.button.secondary {
  background: #fff;
  color: var(--primary);
}

.breadcrumb {
  padding: 28px 20px 0;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb span {
  margin-left: 8px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 36px clamp(20px, 5vw, 72px) 96px;
  background: #2c2228;
  color: #fff;
}

.floating-cta {
  position: fixed;
  right: 18px;
  bottom: 18px;
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
    border: 0;
    background: transparent;
    font-size: 26px;
  }

  .site-header nav {
    display: none;
    position: absolute;
    inset: 67px 0 auto;
    padding: 18px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
  }

  .nav-open .site-header nav {
    display: grid;
  }

  .split,
  .cta,
  .news article,
  .site-footer {
    grid-template-columns: 1fr;
    display: grid;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }
}