/* firmware.llc. One typeface, Inter (SIL Open Font License 1.1, see
   fonts/Inter-OFL.txt), served from this site so no visitor's browser asks
   anyone else for it. It is a variable font: the optical size axis gives
   large text tighter, display-cut letterforms automatically. */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(fonts/inter-latin-opsz-normal.woff2) format('woff2');
}

:root {
  color-scheme: light dark;
  --paper: #f8f7f4;
  --ink: #161616;
  --soft: #4b4b49;
  --muted: #7a7975;
  --rule: #dfddd7;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121212;
    --ink: #ededeb;
    --soft: #bdbcb8;
    --muted: #8a8985;
    --rule: #2a2a29;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--sans);
  font-optical-sizing: auto;
  font-kerning: normal;
  font-feature-settings: 'ss03', 'cv11';
  letter-spacing: -.006em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 44rem; margin: 0 auto; padding: 0 1.5rem; }

/* Small letterspaced capitals for section labels. */
.caps {
  font-size: .6875rem;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.top { padding-top: 2.75rem; }
.brand {
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -.02em;
  color: var(--ink);
}

.hero { padding: 9rem 0 7rem; }
h1 {
  font-size: clamp(2.75rem, 9.5vw, 4.75rem);
  font-weight: 650;
  line-height: 1.02;
  letter-spacing: -.04em;
  margin: 0;
  text-wrap: balance;
}
.tag {
  font-size: clamp(1.25rem, 3.6vw, 1.625rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: -.02em;
  color: var(--muted);
  margin: 1.125rem 0 0;
}

.row {
  display: grid;
  grid-template-columns: 10.5rem 1fr;
  gap: 2rem;
  padding: 2.25rem 0;
  border-top: 1px solid var(--rule);
}
.row .caps { margin: .45rem 0 0; }
h2 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -.028em;
  margin: 0 0 .375rem;
}
.row p { margin: 0 0 1rem; color: var(--soft); text-wrap: pretty; }
.row p:last-child { margin-bottom: 0; }
.row .lead { color: var(--ink); font-size: 1.125rem; letter-spacing: -.012em; margin-bottom: .875rem; }
.row .plain { color: var(--ink); font-weight: 500; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: .25em;
  transition: text-decoration-color .15s;
}
a:hover { text-decoration-color: var(--ink); }
.brand, .brand:hover { text-decoration: none; }
:focus-visible { outline: 1px solid var(--ink); outline-offset: 4px; border-radius: 2px; }

.foot {
  margin-top: 3rem;
  padding-bottom: 3.5rem;
  color: var(--muted);
  font-size: .8125rem;
  line-height: 1.7;
  letter-spacing: 0;
}
.foot-in {
  border-top: 1px solid var(--rule);
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .375rem 2rem;
}
.foot p { margin: 0; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--ink); }
.foot .quiet { flex-basis: 100%; }

@media (max-width: 640px) {
  .top { padding-top: 2rem; }
  .hero { padding: 5rem 0 4rem; }
  .row { grid-template-columns: 1fr; gap: .25rem; padding: 1.75rem 0; }
  .row .caps { margin: 0 0 .5rem; }
}

/* The Timecrumbs icon and screenshot are loaded from timecrumbs.com, so they
   stay current when that site updates them. */
.product { display: flex; align-items: center; gap: .75rem; margin-bottom: .75rem; }
.product img { width: 2.5rem; height: 2.5rem; border-radius: 22%; flex: none; }
.shot { grid-column: 1 / -1; display: block; margin-top: .5rem; }
.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--rule);
  box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 12px 32px -12px rgba(0,0,0,.18);
}