:root {
  --canvas: #f7f1e7;
  --surface: rgba(255, 250, 242, 0.88);
  --ink: #243127;
  --muted: #5c675b;
  --forest: #5b7451;
  --clay: #b9744d;
  --sun: #dbc18a;
  --line: rgba(36, 49, 39, 0.12);
  --shadow: 0 18px 50px rgba(66, 53, 30, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 999px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(219, 193, 138, 0.35), transparent 30%),
    linear-gradient(180deg, #fbf6ee 0%, var(--canvas) 46%, #efe4d3 100%);
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-shell {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(247, 241, 231, 0.86);
  border-bottom: 1px solid var(--line);
}

.site-header__inner,
.section,
.site-footer__inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.branding small,
.section-label,
.card-label {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--forest);
}

.branding strong {
  display: block;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
}

.nav-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.nav-menu a {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: background-color 0.25s ease, transform 0.25s ease;
}

.nav-menu a:hover,
.nav-menu a:focus-visible,
.nav-menu .is-current {
  background: rgba(91, 116, 81, 0.12);
  transform: translateY(-1px);
}

.hero {
  padding: 72px 0 40px;
}

.hero__grid,
.grid-two,
.grid-three {
  display: grid;
  gap: 24px;
}

.hero__grid,
.grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-card,
.panel,
.cta-panel,
.value-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: clamp(28px, 5vw, 56px);
}

.hero-copy h1,
.page-hero h1 {
  margin: 16px 0;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.04;
}

.hero-copy p,
.page-hero p,
.panel p,
.value-card p,
.site-footer p,
ul {
  color: var(--muted);
}

.lead {
  font-size: 1.06rem;
}

.hero-visual {
  padding: 28px;
  position: relative;
  overflow: hidden;
  min-height: 100%;
}

.hero-visual::before,
.hero-visual::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(219, 193, 138, 0.3);
}

.hero-visual::before {
  width: 280px;
  height: 280px;
  top: -90px;
  right: -80px;
}

.hero-visual::after {
  width: 180px;
  height: 180px;
  bottom: -50px;
  left: -40px;
  background: rgba(185, 116, 77, 0.18);
}

.material-stack {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 18px;
}

.material-tile {
  padding: 22px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(91, 116, 81, 0.14);
}

.material-tile strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.15rem;
}

.section {
  padding: 32px 0 72px;
}

.section h2 {
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  margin: 12px 0 18px;
}

.panel,
.value-card,
.cta-panel {
  padding: 28px;
}

.feature-list,
.fact-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: grid;
  gap: 14px;
}

.feature-list li,
.fact-list li {
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(91, 116, 81, 0.08);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.button {
  color: #fffaf2;
  background: linear-gradient(135deg, var(--forest), #6e8d63);
  box-shadow: 0 12px 28px rgba(91, 116, 81, 0.22);
}

.button-secondary {
  background: rgba(36, 49, 39, 0.06);
}

.button:hover,
.button:focus-visible,
.button-secondary:hover,
.button-secondary:focus-visible {
  transform: translateY(-2px);
}

.page-hero {
  padding: 68px 0 20px;
}

.site-footer {
  padding: 36px 0 56px;
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  align-items: center;
}

.fade-up {
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-2 {
  animation-delay: 0.12s;
}

.delay-3 {
  animation-delay: 0.24s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 860px) {
  .hero__grid,
  .grid-two,
  .grid-three {
    grid-template-columns: 1fr;
  }

  .site-header__inner,
  .site-footer__inner {
    align-items: flex-start;
  }

  .nav-menu {
    width: 100%;
  }
}

@media (max-width: 560px) {
  .site-header__inner,
  .section,
  .site-footer__inner {
    width: min(100% - 24px, 1180px);
  }

  .hero {
    padding-top: 48px;
  }

  .hero-copy,
  .panel,
  .value-card,
  .cta-panel,
  .hero-visual {
    padding: 22px;
  }
}