:root {
  --ink: #292521;
  --ink-soft: #5c544d;
  --ink-faint: #8b8177;
  --paper: #fbf8f0;
  --paper-deep: #f2ede2;
  --line: #ddd5c8;
  --stamp: #a62f28;
  --display: "Shippori Mincho", "Noto Serif JP", serif;
  --body: "Inter Tight", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --frame: min(1200px, calc(100% - 3rem));
}

* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 400 1rem/1.65 var(--body); }
body::before { content: ""; position: fixed; inset: 0; pointer-events: none; opacity: .025; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
img { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--stamp); outline-offset: 3px; }

.frame { width: var(--frame); margin-inline: auto; }
.eyebrow { margin: 0 0 1rem; color: var(--stamp); font: 500 .72rem/1 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.site-header { position: sticky; top: 0; z-index: 5; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 94%, transparent); backdrop-filter: blur(10px); }
.site-header__row { min-height: 4.75rem; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; }
.brand { text-decoration: none; font: 500 1.05rem/1 var(--display); letter-spacing: -.02em; }
.brand span { display: block; margin-top: .25rem; color: var(--stamp); font: .6rem/1 var(--mono); letter-spacing: .15em; }
.nav { display: flex; align-items: center; gap: clamp(.85rem, 2vw, 1.75rem); }
.nav a { color: var(--ink-soft); font: .71rem/1 var(--mono); letter-spacing: .12em; text-decoration: none; text-transform: uppercase; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--stamp); }
.buy { display: inline-flex; padding: .72rem .95rem; border: 1px solid var(--ink); color: var(--ink) !important; }
.buy:hover { background: var(--stamp); border-color: var(--stamp); color: white !important; }

.page-hero { padding: clamp(4rem, 9vw, 8rem) 0 clamp(3rem, 7vw, 6rem); border-bottom: 1px solid var(--line); }
.page-hero__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(16rem, .75fr); align-items: end; gap: 3rem; }
.page-hero h1 { max-width: 12ch; margin: 0; font: 500 clamp(2.8rem, 7vw, 5.5rem)/1.02 var(--display); letter-spacing: -.04em; }
.page-hero p:not(.eyebrow) { max-width: 48ch; margin: 0; color: var(--ink-soft); font-size: 1.12rem; }
.page-hero__spec { border-left: 1px solid var(--line); padding-left: 1.5rem; color: var(--ink-soft); font-size: .92rem; }
.page-hero__spec strong { display: block; margin-bottom: .5rem; color: var(--ink); font: .7rem/1 var(--mono); letter-spacing: .15em; text-transform: uppercase; }

.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section--tint { background: var(--paper-deep); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 2.75rem; }
.section-head h2 { margin: 0; font: 500 clamp(2rem, 4vw, 3.25rem)/1.08 var(--display); letter-spacing: -.035em; }
.section-head p { max-width: 42ch; margin: 0; color: var(--ink-soft); }
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: 2rem 1.25rem; }
.product-card { display: grid; gap: 1rem; text-decoration: none; }
.product-card__image { aspect-ratio: 4 / 5; overflow: hidden; background: var(--paper-deep); }
.product-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover img { transform: scale(1.025); }
.product-card__details { display: grid; gap: .3rem; }
.product-card__title { font: 500 1.2rem/1.2 var(--display); }
.product-card__price { color: var(--stamp); font: .72rem/1 var(--mono); letter-spacing: .1em; }
.product-card__note { color: var(--ink-soft); font-size: .88rem; }

.prose { max-width: 44rem; }
.prose h2 { font: 500 clamp(2rem, 4vw, 3.25rem)/1.1 var(--display); letter-spacing: -.035em; }
.prose p, .prose li { color: var(--ink-soft); }
.prose a { text-decoration-color: var(--stamp); text-underline-offset: .2em; }
.callout { border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); padding: 2rem 0; font: 500 clamp(1.7rem, 3vw, 2.5rem)/1.2 var(--display); }
.cta { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.button { display: inline-flex; padding: .9rem 1.1rem; background: var(--stamp); border: 1px solid var(--stamp); color: white; font: .72rem/1 var(--mono); letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.button--quiet { background: transparent; color: var(--ink); }
.button:hover { background: var(--ink); border-color: var(--ink); color: white; }

.site-footer { border-top: 1px solid var(--line); padding: 3rem 0 2rem; }
.site-footer__grid { display: grid; grid-template-columns: 2fr repeat(2, 1fr); gap: 2rem; }
.site-footer h2 { margin: 0 0 .75rem; font: 500 1.4rem/1.1 var(--display); }
.site-footer h3 { margin: 0 0 .85rem; font: .68rem/1 var(--mono); letter-spacing: .15em; text-transform: uppercase; }
.site-footer p, .site-footer li { color: var(--ink-soft); font-size: .9rem; }
.site-footer ul { padding: 0; margin: 0; list-style: none; }
.site-footer li + li { margin-top: .5rem; }
.site-footer a { text-underline-offset: .2em; }
.site-footer__base { margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--ink-faint); font: .65rem/1.5 var(--mono); letter-spacing: .1em; text-transform: uppercase; }

@media (max-width: 680px) {
  :root { --frame: min(100% - 2rem, 1200px); }
  .site-header__row { min-height: 4rem; flex-wrap: wrap; align-items: flex-start; padding-block: .75rem; gap: .75rem; }
  .nav { order: 2; width: 100%; justify-content: flex-start; overflow-x: auto; padding-bottom: .25rem; }
  .nav a { flex: 0 0 auto; }
  .page-hero__grid, .site-footer__grid { grid-template-columns: 1fr; }
  .page-hero__spec { border-left: 0; border-top: 1px solid var(--line); padding: 1rem 0 0; }
  .section-head { display: block; }
  .section-head p { margin-top: 1rem; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }