:root {
  --bg: #0f1410;
  --card: #1a221c;
  --text: #eef6ef;
  --muted: #9aab9d;
  --green: #26a17b;
  --line: #2c3a30;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

header, main, footer {
  width: min(840px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 28px 0 8px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 14px;
}

header img, footer img {
  border-radius: 50%;
  background: #111;
}

.hero { padding: 48px 0 28px; }

.kicker {
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h1 {
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.lead {
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
  max-width: 38ch;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 12px 0 40px;
}

.cards article, .who div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

h2 { font-size: 18px; margin-bottom: 8px; }

.cards p, .who p, .how p { color: var(--muted); font-size: 15px; }

.how { padding: 8px 0 36px; }
.how h2 { margin-bottom: 14px; }
.how ol { padding-left: 22px; color: var(--muted); }
.how li { margin: 8px 0; }

.who {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  padding-bottom: 48px;
}

footer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 24px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 700px) {
  .cards, .who { grid-template-columns: 1fr; }
  h1 { max-width: none; }
}