:root {
  color-scheme: dark;
  --bg: #0d0f11;
  --surface: #14171a;
  --line: #23282d;
  --line-strong: #353b42;
  --text: #ece8e1;
  --muted: #a1a8b0;
  --faint: #7f8790;
  --accent: #e8b04a;
  --accent-ink: #1a1306;
  --display: "Inter Tight", "Inter", system-ui, sans-serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Header */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(13, 15, 17, 0.82);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
}

.mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 16px/1 var(--display);
  letter-spacing: -0.01em;
  text-decoration: none;
}

.mark::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

nav { display: flex; gap: 8px; }

nav a {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
}

nav a:hover { color: var(--text); background: var(--surface); }

/* Type */

.eyebrow,
.label {
  margin: 0;
  font: 500 13px/1.4 var(--mono);
  letter-spacing: 0.04em;
  color: var(--accent);
}

h1, h2, h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  color: var(--text);
}

h1 {
  margin-top: 28px;
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  max-width: 15ch;
}

h1 span { color: var(--faint); }

h2 {
  margin-top: 12px;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h3 {
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

/* Hero */

.hero { padding: 136px 0 120px; }

.lede {
  margin: 36px 0 0;
  max-width: 56ch;
  font-size: 20px;
  line-height: 1.65;
  color: var(--muted);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  font-weight: 500;
  font-size: 15px;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}

.btn:hover { background: var(--surface); border-color: var(--faint); }

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.btn.primary:hover { opacity: 0.9; }

/* Sections */

.section {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
  padding: 104px 0;
  border-top: 1px solid var(--line);
}

.section-head { align-self: start; }

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--line-strong); }

.card.wide { grid-column: 1 / -1; }

.card p {
  margin: 14px 0 0;
  font-size: 16px;
  color: var(--muted);
}

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px 40px;
}

.principles li { padding-top: 24px; border-top: 1px solid var(--line-strong); }

.principles .label { color: var(--faint); }

.principles h3 { margin-top: 14px; }

.principles p { margin: 10px 0 0; font-size: 16px; color: var(--muted); }

.prose p {
  margin: 0;
  max-width: 60ch;
  font-size: 18px;
  color: var(--muted);
}

.prose .actions { margin-top: 36px; }

/* Footer */

.foot { border-top: 1px solid var(--line); }

.foot .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 40px;
  padding-bottom: 56px;
  font-size: 14px;
  color: var(--faint);
}

.foot p { margin: 0; }

/* Small screens */

@media (max-width: 820px) {
  .section { grid-template-columns: minmax(0, 1fr); gap: 32px; padding: 80px 0; }
  .grid, .principles { grid-template-columns: minmax(0, 1fr); }
  .principles { gap: 36px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding: 0 20px; }
  .top .wrap { min-height: 64px; }
  nav { gap: 0; }
  nav a { padding: 10px; font-size: 14px; }
  .hero { padding: 80px 0 72px; }
  .lede { font-size: 18px; margin-top: 28px; }
  .actions { margin-top: 36px; }
  .section { padding: 64px 0; }
  .card { padding: 24px; }
}

@media (max-width: 380px) {
  .mark span { display: none; }
}