:root {
  --paper: #f4eedf;
  --paper-deep: #e8dcc3;
  --ink: #2d342b;
  --muted: #667064;
  --moss: #52644d;
  --moss-dark: #394735;
  --line: rgba(45, 52, 43, 0.18);
  --white: rgba(255, 255, 255, 0.46);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 8%, rgba(255,255,255,.65), transparent 28rem),
    linear-gradient(180deg, var(--paper), #eee5d3 58%, #e5d8bd);
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  line-height: 1.6;
}
a { color: inherit; }
.skip-link {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 10;
  background: var(--ink);
  color: white;
  padding: .7rem 1rem;
}
.skip-link:focus { top: 1rem; }

.site-header,
main,
footer {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .55rem;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: .02em;
}
.brand-mark {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: lowercase;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: .22rem .48rem;
}
nav { display: flex; flex-wrap: wrap; gap: 1rem; }
nav a {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .88rem;
  text-decoration: none;
  color: var(--muted);
}
nav a:hover, nav a:focus { color: var(--ink); text-decoration: underline; }

.hero {
  min-height: 72vh;
  display: grid;
  align-content: center;
  padding: clamp(4rem, 9vw, 8rem) 0;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  margin: 0 0 .7rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--moss);
}
h1, h2, h3 { margin-top: 0; line-height: 1.05; }
h1 {
  max-width: 12ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3.6rem, 11vw, 8.2rem);
  font-weight: 500;
  letter-spacing: -.055em;
}
.lede {
  max-width: 760px;
  margin: 0;
  font-size: clamp(1.2rem, 2.7vw, 1.75rem);
  color: var(--muted);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: .7rem 1rem;
  border: 1px solid var(--moss);
  border-radius: 999px;
  color: var(--moss-dark);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
  text-decoration: none;
}
.button.primary { background: var(--moss-dark); color: #f7f1e5; }
.material-line {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-top: 2.5rem;
}
.material-line span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .38rem .7rem;
  background: rgba(255,255,255,.2);
  font-family: Arial, Helvetica, sans-serif;
  font-size: .8rem;
}

.section { padding: clamp(4rem, 8vw, 7rem) 0; border-bottom: 1px solid var(--line); }
.section-heading { max-width: 760px; margin-bottom: 2.2rem; }
.section-heading h2,
.manifesto h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 500;
  letter-spacing: -.04em;
}
.section-heading > p:last-child { color: var(--muted); font-size: 1.1rem; }

.pattern-grid,
.principles-grid,
.materials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.card,
.principles-grid article,
.material-card {
  min-height: 250px;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  backdrop-filter: blur(7px);
}
.card h3,
.principles-grid h3,
.material-card h3 { margin: .85rem 0 .7rem; font-size: 1.45rem; }
.card p,
.principles-grid p,
.material-card p { color: var(--muted); }
.feature-card { background: rgba(82,100,77,.11); }
.number {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--moss);
}
.note { padding-top: .7rem; border-top: 1px solid var(--line); }
.prototype-note {
  margin-top: 1rem;
  padding: 1.15rem 1.25rem;
  border-left: 4px solid var(--moss);
  background: rgba(82,100,77,.08);
  font-size: 1.05rem;
}

.materials-section { background: rgba(255,255,255,.12); }
.material-card {
  display: flex;
  flex-direction: column;
}
.material-card p { flex: 1; }
.buy-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .75rem;
  margin-top: 1rem;
}
.buy-links .button { width: 100%; }
.text-link {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .86rem;
  font-weight: 700;
  color: var(--moss-dark);
}
.no-buy {
  display: inline-block;
  padding: .62rem .8rem;
  border: 1px dashed var(--moss);
  border-radius: 999px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .86rem;
  font-weight: 700;
  color: var(--moss-dark);
}
.purchase-note {
  margin: 1rem 0 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: .82rem;
}

.principles-grid article { min-height: 190px; }
.principles-grid h3 { margin-top: 0; }

.wardrobe-list { border-top: 1px solid var(--line); }
.wardrobe-list div {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
}
.wardrobe-list span,
.wardrobe-list em {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .82rem;
  color: var(--muted);
  font-style: normal;
}
.wardrobe-list strong { font-size: 1.18rem; }

.manifesto {
  padding: clamp(5rem, 11vw, 9rem) 0;
  text-align: center;
}
.manifesto p {
  margin: 0 auto 1rem;
  max-width: 850px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .9rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--moss);
}
.manifesto h2 { max-width: 850px; margin-inline: auto; }

footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .6rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  font-family: Arial, Helvetica, sans-serif;
  font-size: .82rem;
  color: var(--muted);
}

@media (max-width: 850px) {
  .pattern-grid,
  .principles-grid,
  .materials-grid { grid-template-columns: 1fr 1fr; }
  .site-header { align-items: flex-start; }
  nav { justify-content: flex-end; }
}

@media (max-width: 620px) {
  .site-header { display: block; }
  nav { margin-top: .9rem; justify-content: flex-start; gap: .8rem; }
  .hero { min-height: auto; }
  h1 { font-size: clamp(3.4rem, 17vw, 5.5rem); }
  .pattern-grid,
  .principles-grid,
  .materials-grid { grid-template-columns: 1fr; }
  .card,
  .principles-grid article,
  .material-card { min-height: auto; }
  .wardrobe-list div { grid-template-columns: 3rem 1fr; }
  .wardrobe-list em { grid-column: 2; }
}