:root {
  --ink: #13231f;
  --muted: #52615b;
  --paper: #f6f4ee;
  --accent: #d9ff5b;
  --line: #d7dbcf;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main { max-width: 1180px; margin: 0 auto; padding: 28px; }

.hero {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 8vw 7vw;
  border-radius: 28px;
  background: var(--ink);
  color: #f5f7ed;
}

.eyebrow { margin: 0 0 28px; color: var(--accent); font-size: .73rem; font-weight: 800; letter-spacing: .12em; }
h1 { max-width: 880px; margin: 0; font-size: clamp(2.75rem, 7vw, 6.75rem); line-height: .96; letter-spacing: -.065em; }
.lead { max-width: 650px; margin: 32px 0; color: #d3dad4; font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.5; }
.cta { display: inline-block; padding: 16px 22px; border-radius: 99px; background: var(--accent); color: var(--ink); font-weight: 800; text-decoration: none; }
.cta:hover, .cta:focus-visible { outline: 3px solid #fff; outline-offset: 4px; }
.fine-print { max-width: 550px; margin: 32px 0 0; color: #aeb9b1; font-size: .83rem; line-height: 1.5; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 56px 0 24px; border: 1px solid var(--line); background: var(--line); }
.principles article { min-height: 245px; padding: 28px; background: var(--paper); }
.principles span { color: #78867d; font-family: ui-monospace, monospace; font-size: .8rem; }
.principles h2 { margin: 56px 0 12px; font-size: 1.5rem; letter-spacing: -.04em; }
.principles p { margin: 0; color: var(--muted); line-height: 1.55; }
footer { max-width: 1180px; margin: 0 auto; padding: 0 28px 36px; color: var(--muted); font-size: .8rem; }

@media (max-width: 680px) {
  main { padding: 12px; }
  .hero { min-height: 620px; padding: 48px 28px; border-radius: 18px; }
  .principles { grid-template-columns: 1fr; margin-top: 28px; }
  .principles article { min-height: 200px; }
  footer { padding: 0 16px 28px; }
}