:root {
  --bg: #f4f1ea;
  --ink: #14130f;
  --muted: #6b665a;
  --rule: #d6d0c2;
  --accent: #f38020;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12110e;
    --ink: #ece7dc;
    --muted: #8f897b;
    --rule: #2c2a24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  max-width: 64rem;
  padding: 0 1.5rem;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.55 var(--serif);
}

a { color: inherit; text-decoration-color: var(--accent); text-underline-offset: 3px; }

.masthead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.85rem;
}
.mark { font-weight: 700; letter-spacing: 0.02em; text-decoration: none; }
.dot { color: var(--accent); }
.tag { color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; }

.hero { padding: 5rem 0 3rem; }
.hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.02;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.lede { max-width: 36rem; color: var(--muted); font-size: 1.15rem; margin: 0; }

.panel {
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--ink);
  color: var(--bg);
}
.panel-head button {
  font: inherit;
  background: var(--accent);
  color: #14130f;
  border: 0;
  padding: 0.3rem 0.75rem;
  cursor: pointer;
}
.panel-head button:focus-visible { outline: 2px solid var(--bg); outline-offset: 2px; }

.readout { margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); }
.readout div { padding: 1rem; border-top: 1px solid var(--rule); }
.readout dt { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.readout dd { margin: 0.25rem 0 0; font-size: 1rem; word-break: break-word; }

.stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0;
  margin: 3rem 0;
  border-top: 1px solid var(--rule);
}
.stack article { padding: 1.25rem 1.25rem 1.25rem 0; }
.stack h2 { margin: 0 0 0.25rem; font-size: 1.1rem; font-weight: 600; }
.stack p { margin: 0; color: var(--muted); }

footer {
  padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}