:root {
  --bg: #0d1117;
  --bg-raised: #161b24;
  --line: #2a3140;
  --text: #e8ecf2;
  --muted: #9aa4b5;
  --grass: #5fb83a;
  --grass-dark: #3f8f22;
  --dirt: #8a5a35;
  --sky: #6aa6e0;
  --radius: 14px;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(106, 166, 224, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(95, 184, 58, 0.12), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--sky); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font: 0.88em ui-monospace, "SF Mono", Menlo, monospace;
  background: rgba(255, 255, 255, 0.07);
  padding: 0.1em 0.35em;
  border-radius: 5px;
  word-break: break-word;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px max(20px, calc((100% - var(--max)) / 2));
  background: rgba(13, 17, 23, 0.8);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }

.nav nav { display: flex; gap: 22px; flex-wrap: wrap; }
.nav nav a { color: var(--muted); font-size: 15px; }
.nav nav a:hover { color: var(--text); text-decoration: none; }

main, footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

section { padding: 72px 0 8px; }

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; }
h1 { font-size: clamp(36px, 5vw, 58px); margin: 8px 0 18px; }
h2 { font-size: clamp(28px, 3.5vw, 38px); margin: 0 0 12px; }
h3 { font-size: 19px; margin: 0 0 6px; }

.eyebrow {
  margin: 0;
  color: var(--grass);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
}

.lead { font-size: 19px; color: var(--muted); max-width: 40em; }
.section-lead { color: var(--muted); max-width: 46em; margin: 0 0 28px; }
.note { color: var(--muted); font-size: 15px; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 48px;
  align-items: center;
  padding-top: 64px;
}

.buttons { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0 14px; }

.button {
  display: inline-flex;
  flex-direction: column;
  padding: 12px 22px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-raised);
  color: var(--text);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.button:hover { text-decoration: none; transform: translateY(-1px); border-color: #3b4558; }
.button-title { font-weight: 700; font-size: 17px; }
.button-sub { font-size: 13px; color: var(--muted); }

.button.primary {
  background: linear-gradient(180deg, var(--grass), var(--grass-dark));
  border-color: #2f6f18;
  box-shadow: 0 6px 24px rgba(95, 184, 58, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.button.primary .button-sub { color: rgba(255, 255, 255, 0.82); }

.window {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  background: #1d1f24;
  border: 1px solid #2c2f36;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.window img { display: block; width: 100%; height: auto; }
.window figcaption {
  padding: 10px 14px;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid #2c2f36;
}

.hero-shot { transform: perspective(1600px) rotateY(-6deg); }

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.fact, .card {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.fact p, .card p { margin: 0; color: var(--muted); font-size: 16px; }
.fact h3::before {
  content: "";
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-right: 10px;
  background: linear-gradient(180deg, var(--grass) 0 40%, var(--dirt) 40%);
  vertical-align: 1px;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.gallery .wide { grid-column: 1 / -1; }

.steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 28px 0 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.steps li {
  counter-increment: step;
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.steps li::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  border-radius: 8px;
  background: var(--grass-dark);
  font-weight: 800;
}
.steps p { margin: 0; color: var(--muted); font-size: 16px; }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 18px;
}

details {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
  max-width: 52em;
}
summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 10px 0 0; }

footer {
  padding-top: 64px;
  padding-bottom: 48px;
  color: var(--muted);
  font-size: 14px;
}
footer p { margin: 4px 0; }

@media (max-width: 900px) {
  .hero, .facts, .cards { grid-template-columns: 1fr; }
  .hero-shot { transform: none; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav nav a:not(:last-child) { display: none; }
}

@media (max-width: 600px) {
  .gallery, .steps { grid-template-columns: 1fr; }
  section { padding-top: 52px; }
}