:root {
  color-scheme: dark;
  --bg: #090b0c;
  --surface: #0d0f10;
  --text: #f4f5f3;
  --muted: #a8aaad;
  --line: #343739;
  --accent: #c8ff38;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
.skip-link { position: fixed; top: -4rem; left: 1rem; z-index: 10; padding: .75rem 1rem; background: var(--accent); color: #090b0c; }
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }

.site-header, main, footer { max-width: 1440px; margin: 0 auto; }
.site-header { min-height: 76px; display: flex; align-items: center; justify-content: space-between; padding: 0 42px; border-bottom: 1px solid var(--line); }
.wordmark { color: var(--accent); font: 700 1.75rem/1 var(--mono); letter-spacing: -.06em; }
nav, .footer-links { display: flex; align-items: center; gap: 3.5rem; }
nav a { padding: 27px 0 25px; color: #dedfdd; }
nav a:hover, .footer-links a:hover { color: var(--accent); }
.nav-profile { color: var(--accent); border-bottom: 2px solid var(--accent); }

.hero {
  display: grid;
  grid-template-columns: 1fr minmax(470px, .9fr);
  gap: 6.5rem;
  min-height: 550px;
  align-items: center;
  padding: 76px 82px;
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(rgba(70,75,76,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(70,75,76,.14) 1px, transparent 1px);
  background-size: 108px 108px;
}
h1 { margin: 0; max-width: 720px; font-size: clamp(3.25rem, 5vw, 5rem); line-height: 1.03; letter-spacing: -.055em; }
.hero-copy > p { max-width: 650px; margin: 34px 0 38px; color: var(--muted); font: 1.25rem/1.7 var(--mono); }
.primary-link { display: inline-flex; align-items: center; gap: 2rem; padding: 17px 22px; border: 1px solid var(--accent); border-radius: 5px; color: var(--accent); font: 1rem/1 var(--mono); transition: .18s ease; }
.primary-link svg { width: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.primary-link:hover { background: var(--accent); color: #090b0c; transform: translateY(-2px); }
.identity { position: relative; margin: 0; padding: 20px 32px; border: 1px solid var(--line); border-radius: 5px; background: rgba(13,15,16,.88); font: 1.1rem/1.4 var(--mono); }
.identity::before, .identity::after { content: ""; position: absolute; width: 15px; height: 15px; }
.identity::before { top: 8px; left: 8px; border-top: 2px solid var(--accent); border-left: 2px solid var(--accent); }
.identity::after { right: 8px; bottom: 8px; border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); }
.identity div { display: grid; grid-template-columns: 165px 1fr; gap: 1rem; padding: 30px 12px; }
.identity div + div { border-top: 1px solid var(--line); }
.identity dt { color: var(--accent); }
.identity dd { display: flex; gap: 2.5rem; margin: 0; }
.identity dd span { color: var(--muted); }

.about { display: grid; grid-template-columns: 1.05fr 1fr; gap: 5rem; padding: 56px 82px; border-bottom: 1px solid var(--accent); }
h2 { margin: 0 0 34px; font-size: 2rem; letter-spacing: -.04em; }
h2::after { content: ""; display: block; width: 38px; margin-top: 16px; border-bottom: 3px solid var(--accent); }
.about > div > p { max-width: 650px; margin: 0; color: var(--muted); font-size: 1.05rem; line-height: 1.65; }
.principle { display: flex; align-items: center; gap: 2rem; margin: 0; padding-left: 4.5rem; border-left: 1px solid var(--line); color: #d5d6d4; font: 1rem/1.65 var(--mono); }
.principle span { display: grid; flex: 0 0 62px; height: 62px; place-items: center; border: 1px solid var(--accent); border-radius: 5px; color: var(--accent); font-weight: 700; }

footer { min-height: 118px; display: flex; justify-content: space-between; padding: 28px 82px; }
footer > div { display: flex; flex-direction: column; gap: 18px; }
footer strong { color: var(--accent); font: 700 1rem/1 var(--mono); }
footer small, .footer-links span { color: #818487; }
.footer-links { flex-direction: row; font-size: .9rem; }

@media (max-width: 950px) {
  .hero { grid-template-columns: 1fr; gap: 3.5rem; padding: 64px 42px; }
  .about { grid-template-columns: 1fr; padding: 52px 42px; }
  .principle { padding: 36px 0 0; border-top: 1px solid var(--line); border-left: 0; }
  footer { padding-inline: 42px; }
}

@media (max-width: 600px) {
  .site-header { min-height: 64px; padding-inline: 22px; }
  nav { gap: 1.5rem; }
  nav a { padding-block: 22px 20px; font-size: .9rem; }
  .hero { min-height: auto; padding: 54px 22px; gap: 2.8rem; }
  h1 { font-size: clamp(2.65rem, 12vw, 4rem); }
  .hero-copy > p { margin-block: 28px 32px; font-size: 1rem; }
  .primary-link { justify-content: space-between; width: 100%; }
  .identity { padding: 14px 20px; font-size: .85rem; }
  .identity div { grid-template-columns: 100px minmax(0, 1fr); padding: 23px 5px; }
  .identity dd { gap: .8rem; overflow-wrap: anywhere; }
  .about { padding: 44px 22px; gap: 3rem; }
  .principle { gap: 1.25rem; }
  footer { min-height: 160px; flex-direction: column; gap: 28px; padding: 28px 22px; }
  .footer-links { align-items: flex-start; gap: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .primary-link { transition: none; }
}