/* Bytes & Rust — a workshop in primer grey. Bare panels, stamped plates, oxide as the only warm colour. */
:root {
  --primer: #d3d5cf;        /* the page: a body shell in grey primer */
  --primer-deep: #b8bbb3;
  --plate: #eef0ec;         /* brushed aluminium plates */
  --ink: #13262f;           /* deep petrol, for text */
  --ink-soft: #3c4f57;
  --oxide: #9a3d14;         /* rust: the one warm colour */
  --cobalt: #2340a0;        /* links */
  --rule: #9da196;
  --f-display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --f-body: "Atkinson Hyperlegible", system-ui, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --primer: #1b2328;
    --primer-deep: #232d33;
    --plate: #2b363c;
    --ink: #e6e9e4;
    --ink-soft: #b4bdb9;
    --oxide: #e0794a;
    --cobalt: #9db3ff;
    --rule: #3e4b52;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--primer);
  color: var(--ink);
  font: 400 1.0625rem/1.55 var(--f-body);
}
a { color: var(--cobalt); text-underline-offset: 0.15em; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--oxide); outline-offset: 3px; }

.wrap {
  max-width: 68rem;
  margin: 0 auto;
  padding: 2.5rem max(1rem, env(safe-area-inset-left)) 4rem max(1rem, env(safe-area-inset-right));
}
.measure { max-width: 40rem; }

/* Studio bar */
.studio {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 0.5rem 1.5rem;
  border-bottom: 2px solid var(--ink); padding-bottom: 0.6rem; margin-bottom: 3rem;
}
.studio a.home { font: 800 1.5rem/1 var(--f-display); letter-spacing: 0.01em; color: var(--ink); text-decoration: none; }
.studio nav { display: flex; gap: 1.25rem; font-size: 0.95rem; }

/* Headings: tall, condensed, stamped */
h1, h2, h3 { font-family: var(--f-display); font-weight: 800; line-height: 0.95; margin: 0; }
h1 { font-size: clamp(3.5rem, 12vw, 8.5rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(2rem, 5vw, 3rem); margin-top: 4rem; margin-bottom: 1rem; }
h3 { font-size: 1.6rem; }
.lede { font-size: 1.3rem; line-height: 1.45; color: var(--ink-soft); margin: 1rem 0 0; }
.tagline { font: 700 clamp(1.4rem, 3.2vw, 2rem)/1.15 var(--f-display); color: var(--oxide); margin: 1.75rem 0 0; }

/* The build plates: the page's one bold element. Riveted aluminium tags, text stamped in. */
.plates {
  display: grid; gap: 1.25rem; margin-top: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.plate {
  position: relative;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0 1px, transparent 1px 3px),
    var(--plate);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.6rem 1.6rem 1.4rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 2px 0 var(--primer-deep);
}
.plate::before, .plate::after {   /* rivets */
  content: ""; position: absolute; top: 0.7rem; width: 0.55rem; height: 0.55rem; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff 0 15%, #9aa09a 60%, #6b716b 100%);
}
.plate::before { left: 0.7rem; }
.plate::after { right: 0.7rem; }
.plate h3 { font-size: 2.2rem; color: var(--ink); text-shadow: 0 1px 0 rgba(255,255,255,0.6); }
.plate .jargon { font-weight: 700; margin: 0.6rem 0 0.25rem; }
.plate .plain { margin: 0; color: var(--ink-soft); font-size: 0.98rem; }
.plate.mod { border-color: var(--oxide); box-shadow: inset 0 1px 0 rgba(255,255,255,0.5), 0 2px 0 var(--oxide); }
@media (prefers-color-scheme: dark) {
  .plate h3 { text-shadow: none; }
  .plate { box-shadow: 0 2px 0 #0e1417; }
}

/* Status line under the hero */
.status {
  margin-top: 2.5rem; padding: 1rem 1.25rem; border-left: 6px solid var(--oxide);
  background: var(--primer-deep);
}
.status p { margin: 0; }
.status p + p { margin-top: 0.4rem; }

/* Lists and FAQ */
ul.changes { padding-left: 1.2rem; margin: 0; }
ul.changes li { margin: 0.45rem 0; }
ul.changes li strong { font-weight: 700; }
dl.faq dt { font-weight: 700; margin-top: 1.4rem; }
dl.faq dd { margin: 0.3rem 0 0; }

.note { color: var(--ink-soft); font-size: 0.95rem; }

footer {
  margin-top: 5rem; padding-top: 1rem; border-top: 2px solid var(--ink);
  font-size: 0.9rem; color: var(--ink-soft);
}
footer p { margin: 0.35rem 0; max-width: 46rem; }

/* Studio page: one project, one row */
.project {
  display: grid; gap: 0.5rem 2rem; grid-template-columns: minmax(0, 1fr);
  padding: 1.5rem 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin-top: 2rem;
}
@media (min-width: 46rem) { .project { grid-template-columns: 18rem minmax(0, 1fr); } }
.project h3 a { color: var(--ink); }
.project p { margin: 0; }