:root {
  color-scheme: light dark;

  --page: #ffffff;
  --page-2: #f6f7f8;
  --line: #e4e6e9;
  --text: #16181c;
  --text-2: #43474e;
  --muted: #6b7078;
  --accent: #1f4e5f;
  --accent-text: #ffffff;
  --tint: #edf3f5;
  --added: #2e7d4f;
  --changed: #1f4e5f;
  --fixed: #a8560d;
  --dot: rgba(31, 78, 95, 0.055);

  --sans: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', system-ui, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --page-width: 1120px;
  --text-width: 640px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #141417;
    --page-2: #1b1c20;
    --line: #2b2d33;
    --text: #f1f2f4;
    --text-2: #c6c9cf;
    --muted: #979ba3;
    --accent: #7fb3c4;
    --accent-text: #10272f;
    --tint: #1d262a;
    --added: #7fc99a;
    --changed: #7fb3c4;
    --fixed: #e0a060;
    --dot: rgba(160, 200, 214, 0.05);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  /* The icon's cells, faint, as a grid behind the page. */
  background-color: var(--page);
  background-image: radial-gradient(var(--dot) 1.5px, transparent 1.6px);
  background-size: 26px 26px;
  background-position: 13px 13px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

h1, h2, h3 { letter-spacing: -0.02em; line-height: 1.15; margin: 0; }

.mono { font-family: var(--mono); font-size: 0.85em; }

.quiet { color: var(--muted); }

/* Top bar */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
  padding: 0 28px;
  background: color-mix(in srgb, var(--page) 82%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
}

.nav-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 15px;
}

.nav-links a { color: var(--text-2); text-decoration: none; }

.nav-links a:hover { color: var(--text); }

.nav-cta {
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text) !important;
  font-weight: 600;
}

/* Hero */

.hero {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 88px 28px 0;
  text-align: center;
}

.hero-mark { margin-bottom: 26px; }

h1 {
  font-size: clamp(38px, 5.4vw, 60px);
  max-width: 16ch;
  margin: 0 auto;
}

.lede {
  max-width: 62ch;
  margin: 22px auto 0;
  font-size: 19px;
  color: var(--text-2);
}

.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin: 32px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  padding: 13px 30px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 17px;
  font-weight: 600;
  text-decoration: none;
}

.button:hover { filter: brightness(1.08); }

.under { font-size: 14px; color: var(--muted); }

/* Screenshots */

.shot { margin: 0; }

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.16);
}

@media (prefers-color-scheme: dark) {
  .shot img { box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); }
}

.shot.wide { margin-top: 64px; }

/* Features */

.band {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 40px 28px;
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: center;
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}

.feature:last-child { border-bottom: 0; }

.feature.reverse .feature-text { order: 2; }

h2 { font-size: clamp(26px, 3vw, 34px); }

.feature p {
  margin: 16px 0 0;
  color: var(--text-2);
  max-width: var(--text-width);
}

.ticks {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 16px;
  color: var(--text-2);
}

.ticks li { position: relative; padding-left: 26px; }

.ticks li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 10px;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* Engines */

.engines {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 72px 28px;
  border-top: 1px solid var(--line);
}

.engine-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.engine {
  padding: 24px;
  border-radius: 14px;
  background: var(--page-2);
  border: 1px solid var(--line);
}

.engine h3 { font-size: 19px; }

.engine p { margin: 10px 0 0; font-size: 15px; color: var(--text-2); }

.engines-note { margin: 24px 0 0; color: var(--muted); font-size: 15px; max-width: var(--text-width); }

/* Changes */

.changes {
  padding: 84px 28px;
  border-top: 1px solid var(--line);
  background-color: var(--page-2);
  background-image: none;
  text-align: center;
}

.changes-head { display: flex; align-items: baseline; justify-content: center; gap: 14px; }

.change-list {
  margin: 30px auto 0;
  text-align: left;
  padding: 0;
  list-style: none;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 16px;
  color: var(--text-2);
}

.change-list li { display: flex; gap: 12px; align-items: flex-start; }

.change-list .ver {
  justify-content: space-between;
  margin-top: 18px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
}

.change-list .ver:first-child { margin-top: 0; }

.when { color: var(--muted); }

.st {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  background: var(--tint);
  color: var(--changed);
}

.st.a { color: var(--added); background: color-mix(in srgb, var(--added) 14%, transparent); }

.st.f { color: var(--fixed); background: color-mix(in srgb, var(--fixed) 14%, transparent); }

/* Closing and footer */

.closing {
  text-align: center;
  padding: 96px 28px 104px;
  border-top: 1px solid var(--line);
  background-color: var(--page);
}

.closing h2 { max-width: 18ch; margin: 0 auto; }

.foot {
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: center;
  padding: 28px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.brand-foot { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 600; }

/* Narrow screens */

@media (max-width: 900px) {
  .feature { grid-template-columns: minmax(0, 1fr); gap: 32px; padding: 56px 0; }

  .feature.reverse .feature-text { order: 0; }

  .engine-grid { grid-template-columns: minmax(0, 1fr); }

  .hero { padding-top: 56px; }

  .shot.wide { margin-top: 44px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .nav { padding: 0 16px; gap: 14px; }

  .nav-links { gap: 14px; font-size: 14px; }

  .nav-links a:not(.nav-cta) { display: none; }

  .hero, .band, .engines, .changes { padding-left: 16px; padding-right: 16px; }
}