:root {
  --ink: #1c1917;
  --muted: #78716c;
  --line: #e7e5e4;
  --paper: #fafaf9;
  --card: #ffffff;
  --copper: #9a3412;
  --copper-dark: #7c2d12;
  --copper-soft: #fff7ed;
  --tray: #f5f5f4;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Source Sans 3", "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 1.05rem;
  line-height: 1.55;
}
a { color: var(--copper); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.4rem;
  background: rgba(250, 250, 249, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}
.nav-brand img { width: 1.7rem; height: 1.7rem; border-radius: 0.35rem; }
.nav-links { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 0.92rem; font-weight: 600; }
.nav-links a:hover { color: var(--copper); text-decoration: none; }
.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1.4rem; }
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  padding: 3.2rem 0 2.4rem;
}
.hero h1 {
  font-family: Fraunces, Georgia, serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 500;
  line-height: 1.12;
  margin: 0 0 0.8rem;
  letter-spacing: -0.02em;
}
.hero .lede { font-size: 1.15rem; color: #44403c; max-width: 36rem; }
.cmd {
  margin: 1.3rem 0 1rem;
  background: var(--ink);
  color: #fefce8;
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
  overflow-x: auto;
}
.cmd span { color: #fdba74; }
.hero-actions { display: flex; gap: 0.7rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  background: var(--copper);
  color: #fff8f3;
  font-weight: 600;
  padding: 0.45rem 0.95rem;
  border-radius: 4px;
  text-decoration: none;
}
.btn:hover { background: var(--copper-dark); text-decoration: none; }
.btn.ghost {
  background: transparent;
  color: var(--copper);
  border: 1px solid var(--copper);
}
.mosaic {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
}
.mosaic figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 1;
  background: var(--tray);
}
.mosaic img { width: 100%; height: 100%; object-fit: cover; }
.mosaic figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1.4rem 0.5rem 0.4rem;
  background: linear-gradient(transparent, rgba(28, 25, 23, 0.78));
  color: #fff7ed;
  font-size: 0.72rem;
  font-weight: 600;
}
.section { padding: 2.8rem 0; }
.section h2 {
  font-family: Fraunces, Georgia, serif;
  font-size: 1.85rem;
  font-weight: 500;
  margin: 0 0 0.4rem;
}
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--copper);
  margin: 0 0 0.35rem;
}
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.4rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem 1.05rem 1.1rem;
}
.card h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  align-items: center;
  margin-top: 1.6rem;
}
.pair img { width: 100%; border-radius: 6px; }
.pair.wide { grid-template-columns: 0.9fr 1.1fr; }
.lens-demo {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.45rem;
}
.tile {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 1;
  border: 2px solid transparent;
}
.tile img { width: 100%; height: 100%; object-fit: cover; }
.tile.yes { border-color: #15803d; }
.tile.no { border-color: #b91c1c; }
.tile .mark {
  position: absolute;
  top: 0.3rem;
  left: 0.3rem;
  background: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.08rem 0.35rem;
  border-radius: 3px;
}
.tile.yes .mark { color: #15803d; }
.tile.no .mark { color: #b91c1c; }
.pipe {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.6rem;
  margin-top: 1.3rem;
  counter-reset: step;
}
.pipe li {
  list-style: none;
  background: var(--copper-soft);
  border-radius: 8px;
  padding: 0.9rem 0.85rem;
  margin: 0;
}
.pipe ol { display: contents; padding: 0; margin: 0; }
.pipe strong { display: block; color: var(--copper-dark); font-size: 0.92rem; }
.pipe span { color: var(--muted); font-size: 0.85rem; }
.band {
  background: var(--ink);
  color: #f5f5f4;
  padding: 2.6rem 0;
}
.band h2 { color: #fff7ed; }
.band .cmd { background: #292524; }
.band p { color: #d6d3d1; }
footer {
  padding: 1.6rem 0 2.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--line);
}
footer a { font-weight: 600; }
@media (max-width: 860px) {
  .hero, .pair, .pair.wide, .features, .pipe, .lens-demo { grid-template-columns: 1fr; }
  .mosaic { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 1.6rem; }
}