@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Cormorant+Garamond:ital,wght@0,300;0,400;1,300;1,400&family=Noto+Sans+JP:wght@300;400&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d0d0d;
  --bg2: #141414;
  --text: #e8e4de;
  --text-muted: rgba(232,228,222,0.55);
  --text-dim: rgba(232,228,222,0.35);
  --border: rgba(232,228,222,0.12);
  --border-mid: rgba(232,228,222,0.22);
  --accent: rgba(180,155,100,0.85);
  --font-display: 'Bebas Neue', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-serif: 'Cormorant Garamond', serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1.7;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 56px;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: padding 0.3s;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.18em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img { height: 28px; width: auto; filter: brightness(0) invert(1); opacity: 0.9; }
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }
.nav-links a.active { color: var(--text); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-hamburger span { display: block; width: 22px; height: 1px; background: var(--text); transition: all 0.3s; }

.page-header {
  padding: 160px 56px 80px;
  border-bottom: 1px solid var(--border);
}
.page-header-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.page-header-en {
  font-family: var(--font-display);
  font-size: clamp(56px, 8vw, 100px);
  letter-spacing: 0.06em;
  line-height: 0.95;
  color: var(--text);
  display: block;
}
.page-header-ja {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 2;
  max-width: 560px;
}

.section { border-bottom: 1px solid var(--border); }
.section-inner { padding: 80px 56px; }
.section-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  margin-bottom: 24px;
}
.section-en {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 60px);
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--text);
  display: block;
  margin-bottom: 16px;
}
.section-ja { font-size: 13px; color: var(--text-muted); line-height: 2.1; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); }

.btn {
  display: inline-block;
  padding: 13px 32px;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  font-family: var(--font-body);
  font-weight: 300;
  border: 1px solid var(--border-mid);
  color: var(--text);
  background: transparent;
  cursor: pointer;
  transition: all 0.25s;
}
.btn:hover { background: rgba(232,228,222,0.06); border-color: rgba(232,228,222,0.45); }
.btn-primary { background: var(--text); color: var(--bg); border-color: var(--text); }
.btn-primary:hover { background: #f0ece6; border-color: #f0ece6; }

.footer {
  padding: 48px 56px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 48px;
  border-top: 1px solid var(--border);
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.16em;
  color: var(--text);
  margin-bottom: 10px;
  display: block;
}
.footer-tagline { font-size: 11px; color: var(--text-dim); line-height: 1.8; }
.footer-col-title {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 16px;
  display: block;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 12px; color: var(--text-muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--text); }
.footer-bottom {
  padding: 20px 56px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy { font-size: 10px; color: var(--text-dim); letter-spacing: 0.1em; }
.footer-social { display: flex; gap: 20px; }
.footer-social a { font-size: 10px; letter-spacing: 0.12em; color: var(--text-dim); transition: color 0.2s; }
.footer-social a:hover { color: var(--text-muted); }

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .nav { padding: 20px 24px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    align-items: center;
    justify-content: center;
    gap: 32px;
  }
  .nav-links.open a { font-size: 14px; }
  .page-header { padding: 120px 24px 56px; }
  .section-inner { padding: 56px 24px; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr 1fr; padding: 40px 24px; gap: 32px; }
  .footer-bottom { padding: 16px 24px; flex-direction: column; gap: 12px; text-align: center; }
}