:root {
  --ink: #14241f;
  --pine: #16352c;
  --pine-mid: #1f4a3d;
  --gold: #c4a05a;
  --gold-soft: #e4d2a8;
  --paper: #f5f1e8;
  --cream: #fbf8f2;
  --muted: #5c6b66;
  --line: #e2ddd2;
  --max: 1080px;
  --bar: 76px;
  --serif: "Cormorant Garamond", "Noto Serif JP", "Yu Mincho", serif;
  --sans: "Source Sans 3", "Noto Sans JP", "Hiragino Sans", "Segoe UI", sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar) + 0.6rem);
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.2;
}
p { margin: 0; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--pine);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip:focus { left: 1rem; top: 1rem; }

.wrap {
  width: min(var(--max), calc(100% - 2.2rem));
  margin-inline: auto;
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(251, 248, 242, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.head-inner {
  min-height: var(--bar);
  display: flex;
  align-items: center;
  gap: 1rem;
}
.head-inner .logo { margin-right: auto; }
.head-tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo strong {
  font-family: var(--serif);
  font-size: 1.35rem;
  letter-spacing: 0.14em;
  color: var(--pine);
}
.logo span {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}
.nav a {
  font-size: 0.92rem;
  color: var(--ink);
  position: relative;
}
.nav a.is-active,
.nav a:hover { color: var(--pine); }
.nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.45rem;
  height: 2px;
  background: var(--gold);
}

.lang {
  display: flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}
.lang button {
  border: 0;
  background: #fff;
  padding: 0.35rem 0.65rem;
  min-width: 2.4rem;
  cursor: pointer;
  color: var(--muted);
  font: inherit;
}
.lang button.is-on {
  background: var(--pine);
  color: #fff;
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
}
.menu-btn span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  margin: 4px auto;
}

.hero {
  position: relative;
  min-height: 78vh;
  display: grid;
  align-items: end;
  padding: 5rem 0 4rem;
  background:
    linear-gradient(180deg, rgba(22, 53, 44, 0.18), rgba(22, 53, 44, 0.72)),
    radial-gradient(ellipse at 20% 20%, #2d6a56 0%, transparent 50%),
    linear-gradient(135deg, #16352c, #0d221c 55%, #3a2a16);
  color: #fff;
}
.hero .wrap { position: relative; z-index: 1; }
.hero .kicker {
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--gold-soft);
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  color: #fff;
  max-width: 14ch;
}
.hero .lead {
  max-width: 38rem;
  margin-top: 1.2rem;
  color: rgba(255,255,255,0.88);
  font-size: 1.08rem;
}
.btns { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 2rem; }
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-size: 0.95rem;
  border: 1px solid transparent;
}
.btn-fill { background: var(--gold); color: var(--pine); }
.btn-ghost { border-color: rgba(255,255,255,0.45); color: #fff; }

.section { padding: 4.2rem 0; }
.section-head { max-width: 40rem; margin-bottom: 2rem; }
.section-head .tag {
  color: var(--gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin-bottom: 0.6rem;
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); margin-bottom: 0.8rem; }
.section-head p { color: var(--muted); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem 1.3rem 1.5rem;
  min-height: 100%;
}
.card em {
  font-style: normal;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.card h3 { margin: 0.45rem 0 0.7rem; font-size: 1.35rem; }
.card p { color: var(--muted); font-size: 0.98rem; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.4rem;
  align-items: start;
}
.panel {
  background: var(--pine);
  color: #e8f0ea;
  border-radius: 16px;
  padding: 1.8rem;
}
.panel h3 { color: #fff; margin-bottom: 0.7rem; }
.panel p { color: rgba(232,240,234,0.86); }

.contact-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.contact-box dl {
  margin: 0;
  display: grid;
  grid-template-columns: 180px 1fr;
}
.contact-box dt,
.contact-box dd {
  margin: 0;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
}
.contact-box dt {
  background: #f7f4ee;
  font-weight: 600;
  color: var(--pine);
}
.contact-box a { color: var(--pine-mid); text-decoration: underline; text-underline-offset: 3px; }

.site-foot {
  padding: 1.6rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 860px) {
  .menu-btn { display: block; }
  .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--bar);
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.2rem 1.2rem;
    border-bottom: 1px solid var(--line);
    gap: 0.9rem;
  }
  .nav.is-open { display: flex; }
  .cards,
  .about-grid,
  .contact-box dl { grid-template-columns: 1fr; }
  .contact-box dt { border-bottom: 0; padding-bottom: 0.2rem; }
}