:root {
  --bg: #f5f1e8;
  --surface: #fffdfa;
  --surface-muted: #f7f1e7;
  --surface-strong: #efe6d6;
  --surface-deep: #e7dbc7;
  --surface-dark: #2f261f;
  --surface-dark-soft: #43342a;
  --text: #2c241d;
  --muted: #6d6153;
  --text-on-dark: #f4ebdd;
  --muted-on-dark: #d5c6b0;
  --line: rgba(44, 36, 29, 0.14);
  --line-soft: rgba(44, 36, 29, 0.08);
  --line-strong: rgba(44, 36, 29, 0.24);
  --accent: #9f6a2e;
  --accent-soft: #d8b27a;
  --accent-teal: #5a9ea6;
  --accent-forest: #54724d;
  --shadow: 0 18px 50px rgba(44, 36, 29, 0.08);
  --shadow-soft: 0 12px 32px rgba(44, 36, 29, 0.08);
  --shadow-strong: 0 24px 70px rgba(44, 36, 29, 0.14);
  --radius-sm: 0.85rem;
  --radius-md: 1.4rem;
  --radius-lg: 2rem;
  --radius-pill: 999px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;
  --max-width: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0)),
    var(--bg);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "BIZ UDPMincho", serif;
  line-height: 1.8;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 1000;
  padding: 0.65rem 0.9rem;
  color: #fff;
  background: var(--text);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}