:root {
  --bg: #f6f3ec;
  --bg-card: #ffffff;
  --text: #1d1d1d;
  --sub: #6b6b6b;
  --line: #e1ddd1;
  --accent-a: #1f2a44;
  --accent-a-2: #c8a96a;
  --accent-b: #3f5841;
  --accent-c: #d34f3a;
  --accent-d: #78918a;
  --accent-e: #5d6f2f;
  --accent-f: #b86135;
  --radius: 4px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Noto Sans JP", system-ui, -apple-system, "Hiragino Kaku Gothic ProN", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.85;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

.top-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px 24px 48px;
  text-align: center;
}
.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 32px;
}
.brand__en {
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--sub);
  font-size: 14px;
  text-transform: uppercase;
}
.brand__jp {
  font-family: "Noto Serif JP", serif;
  font-weight: 600;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.2em;
  margin: 0;
}
.lead {
  font-size: 15px;
  color: #333;
  max-width: 640px;
  margin: 0 auto 16px;
}
.note {
  font-size: 12px;
  color: var(--sub);
  margin: 0;
}

.patterns {
  max-width: var(--max);
  margin: 24px auto 96px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pattern-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.pattern-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 48px rgba(0,0,0,.08);
  border-color: transparent;
}

.pattern-card__thumb {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: #ddd;
}
.pattern-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .8s ease;
}
.pattern-card:hover .pattern-card__thumb img {
  transform: scale(1.05);
}
.pattern-card__label {
  position: absolute;
  left: 16px;
  top: 16px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-family: "Cormorant Garamond", serif;
  font-size: 18px;
  background: rgba(255,255,255,.92);
  border-radius: 50%;
  color: var(--text);
}
.pattern-card--a .pattern-card__label { background: var(--accent-a); color: var(--accent-a-2); }
.pattern-card--b .pattern-card__label { background: var(--accent-b); color: #fff; }
.pattern-card--c .pattern-card__label { background: var(--accent-c); color: #fff; }
.pattern-card--d .pattern-card__label { background: var(--accent-d); color: #fff; }
.pattern-card--e .pattern-card__label { background: var(--accent-e); color: #fff; }
.pattern-card--f .pattern-card__label { background: var(--accent-f); color: #fff; }

.pattern-card__body {
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.pattern-card__eyebrow {
  margin: 0;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: var(--sub);
  text-transform: uppercase;
}
.pattern-card__title {
  font-family: "Cormorant Garamond", serif;
  font-weight: 600;
  font-size: 28px;
  letter-spacing: 0.04em;
  margin: 0;
}
.pattern-card__sub {
  font-family: "Noto Serif JP", serif;
  font-weight: 600;
  font-size: 15px;
  margin: 0 0 12px;
  color: var(--text);
}
.pattern-card__desc {
  font-size: 14px;
  color: #444;
  margin: 0 0 20px;
}
.pattern-card__cta {
  margin-top: auto;
  font-family: "Cormorant Garamond", serif;
  font-style: italic;
  letter-spacing: 0.12em;
  font-size: 15px;
  color: var(--text);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.top-footer {
  text-align: center;
  padding: 48px 24px 64px;
  color: var(--sub);
  font-size: 12px;
}
.top-footer p { margin: 4px 0; }
.top-footer__src { letter-spacing: 0.05em; }

@media (max-width: 900px) {
  .patterns { grid-template-columns: 1fr; gap: 20px; max-width: 520px; }
  .top-header { padding-top: 64px; }
}