:root {
  --ink: #1d211e;
  --paper: #f6f5f1;
  --white: #ffffff;
  --green: #3e5748;
  --line: #d8d8d1;
  --muted: #666c67;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}
a { color: inherit; }
img { display: block; width: 100%; }

.topbar {
  height: 68px;
  padding: 0 clamp(20px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.brand { font-size: 21px; font-weight: 700; text-decoration: none; }
nav { display: flex; gap: 28px; }
nav a { color: var(--muted); font-size: 14px; text-decoration: none; }
nav a:hover { color: var(--ink); }

.hero { min-height: calc(100vh - 68px); position: relative; display: grid; align-items: end; overflow: hidden; }
.hero > img { position: absolute; inset: 0; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16, 24, 19, .75), rgba(16, 24, 19, .08) 68%); }
.hero-copy { position: relative; z-index: 1; max-width: 650px; padding: 10vh clamp(20px, 7vw, 110px); color: var(--white); }
.eyebrow { margin: 0 0 14px; font-size: 12px; font-weight: 700; letter-spacing: 1.8px; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; line-height: 1.08; letter-spacing: 0; }
h1 { margin-bottom: 22px; font-size: clamp(42px, 6vw, 78px); }
h2 { margin-bottom: 22px; font-size: clamp(32px, 4vw, 52px); }
h3 { margin-bottom: 12px; font-size: 23px; }
.hero-copy > p:not(.eyebrow) { max-width: 540px; margin: 0 0 32px; font-size: 18px; }
.button { display: inline-block; padding: 13px 20px; color: var(--ink); background: var(--white); border: 1px solid var(--white); border-radius: 4px; font-weight: 700; text-decoration: none; }
.button:hover { color: var(--white); background: transparent; }
.button.dark { color: var(--white); background: var(--green); border-color: var(--green); }

.intro { padding: 100px clamp(20px, 7vw, 110px); background: var(--white); }
.intro > p:not(.eyebrow) { max-width: 650px; color: var(--muted); font-size: 18px; }
.features { margin-top: 58px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.features article { padding: 34px 32px 12px 0; }
.features article + article { padding-left: 32px; border-left: 1px solid var(--line); }
.features span { display: block; margin-bottom: 32px; color: var(--green); font-size: 13px; font-weight: 700; }
.features p { margin: 0; color: var(--muted); }

.showcase { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(360px, .7fr); background: #e8ebe5; }
.showcase-image img { height: 100%; min-height: 650px; object-fit: cover; }
.showcase-copy { padding: clamp(52px, 7vw, 110px); align-self: center; }
.showcase-copy > p:not(.eyebrow) { color: var(--muted); }
dl { margin: 38px 0 0; border-top: 1px solid #bec6bd; }
dl div { padding: 14px 0; display: flex; justify-content: space-between; gap: 24px; border-bottom: 1px solid #bec6bd; }
dt { color: var(--muted); }
dd { margin: 0; font-weight: 700; }

.materials { padding: 90px clamp(20px, 7vw, 110px); display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; }
.materials p:last-child { max-width: 620px; margin: 26px 0 0; color: var(--muted); font-size: 18px; }
.contact { padding: 110px 20px; text-align: center; color: var(--white); background: var(--ink); }
.contact h2 { max-width: 850px; margin-left: auto; margin-right: auto; }
.contact > p:not(.eyebrow) { max-width: 650px; margin: 0 auto 34px; color: #c9cec9; }
footer { padding: 28px clamp(20px, 5vw, 72px); display: flex; justify-content: space-between; gap: 20px; color: var(--muted); background: var(--white); font-size: 13px; }

@media (max-width: 760px) {
  nav { display: none; }
  .hero { min-height: 78vh; }
  .hero-shade { background: linear-gradient(0deg, rgba(16, 24, 19, .78), rgba(16, 24, 19, .08) 80%); }
  .hero-copy { padding-bottom: 54px; }
  .intro { padding-top: 72px; padding-bottom: 72px; }
  .features { grid-template-columns: 1fr; }
  .features article + article { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .showcase { grid-template-columns: 1fr; }
  .showcase-image img { min-height: 0; aspect-ratio: 4 / 3; }
  .showcase-copy { padding: 56px 24px; }
  .materials { grid-template-columns: 1fr; gap: 0; padding-top: 70px; padding-bottom: 70px; }
  footer { flex-direction: column; }
}