/* Birchwren - shop notes */

:root {
  --paper: #f8f3e8;
  --sand: #efe5cf;
  --walnut: #3b2a1e;
  --walnut-soft: #6e5a48;
  --rust: #a24e2a;
  --ochre: #b8862f;
  --line: #dccdb0;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
}

* { box-sizing: border-box; }

html { font-size: 18px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--walnut);
  font-family: var(--serif);
  line-height: 1.55;
}

/* two columns: bench and board */

.frame {
  display: grid;
  grid-template-columns: 14rem minmax(0, 42rem);
  grid-template-areas:
    "side main"
    "side foot";
  grid-template-rows: 1fr auto;
  min-height: 100vh;
  column-gap: 3.5rem;
}

.side {
  grid-area: side;
  background: var(--sand);
  border-right: 3px double var(--line);
  padding: 2.5rem 1.6rem;
}

.side-inner { position: sticky; top: 2.5rem; }

.mark {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--walnut);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.mark svg { width: 1.7rem; height: 1.7rem; flex: none; }

.tag {
  margin: 0.6rem 0 2rem;
  font-size: 0.86rem;
  font-style: italic;
  color: var(--walnut-soft);
}

.side nav { display: flex; flex-direction: column; gap: 0.15rem; }

.side nav a {
  display: block;
  padding: 0.35rem 0 0.35rem 0.75rem;
  border-left: 3px solid transparent;
  color: var(--walnut);
  text-decoration: none;
  font-variant: small-caps;
  letter-spacing: 0.08em;
  font-size: 1.05rem;
}

.side nav a:hover { border-left-color: var(--ochre); }

.side nav a[aria-current] {
  border-left-color: var(--rust);
  color: var(--rust);
}

main {
  grid-area: main;
  padding: 2.8rem 1rem 2rem 0;
}

.foot {
  grid-area: foot;
  padding: 1rem 0 2rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--walnut-soft);
  letter-spacing: 0.06em;
  font-variant: small-caps;
}

/* type */

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 0.4rem;
  font-weight: 700;
}

h2 {
  font-size: 1.05rem;
  margin: 2.2rem 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--rust);
}

p, ul, ol { margin: 0 0 1rem; }

ul, ol { padding-left: 1.3rem; }

li { margin-bottom: 0.35rem; }

a { color: var(--rust); text-underline-offset: 0.18em; }

a:hover { color: var(--walnut); }

.label, time.label {
  display: inline-block;
  font-variant: small-caps;
  letter-spacing: 0.14em;
  font-size: 0.85rem;
  color: var(--ochre);
}

.lede {
  font-size: 1.12rem;
  color: var(--walnut-soft);
  margin-bottom: 1.6rem;
}

/* write-up list */

.cards { list-style: none; padding: 0; margin: 1.8rem 0 0; }

.cards li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px dashed var(--line);
  margin: 0;
}

.cards li:first-child { border-top: 1px dashed var(--line); }

.cards a {
  color: var(--walnut);
  font-weight: 700;
  text-decoration: none;
  font-size: 1.1rem;
}

.cards a:hover { color: var(--rust); }

.cards p { margin: 0.2rem 0 0; font-size: 0.95rem; color: var(--walnut-soft); }

/* cut lists */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.4rem 0 1.4rem;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

th {
  text-align: left;
  font-weight: 400;
  font-variant: small-caps;
  letter-spacing: 0.1em;
  color: var(--walnut-soft);
  border-bottom: 2px solid var(--walnut);
  padding: 0.3rem 0.5rem 0.3rem 0;
}

td {
  border-bottom: 1px solid var(--line);
  padding: 0.35rem 0.5rem 0.35rem 0;
  vertical-align: top;
}

.note {
  background: var(--sand);
  border-left: 4px solid var(--ochre);
  padding: 0.9rem 1.1rem;
  margin: 2rem 0 1rem;
}

.note h2 { margin-top: 0; }

.note p:last-child { margin-bottom: 0; }

.back { margin-top: 2.4rem; font-size: 0.92rem; }

.big {
  font-size: 4.5rem;
  line-height: 1;
  color: var(--ochre);
  margin: 0 0 0.6rem;
  font-weight: 700;
}

/* narrow screens */

@media (max-width: 760px) {
  html { font-size: 17px; }

  .frame {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "side" "main" "foot";
    grid-template-rows: auto 1fr auto;
    column-gap: 0;
  }

  .side {
    border-right: 0;
    border-bottom: 3px double var(--line);
    padding: 1.2rem 16px 0.9rem;
  }

  .side-inner { position: static; }

  .tag { margin: 0.3rem 0 0.8rem; }

  .side nav { flex-direction: row; flex-wrap: wrap; gap: 1.1rem; }

  .side nav a {
    padding: 0.2rem 0 0.15rem;
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .side nav a:hover { border-bottom-color: var(--ochre); }

  .side nav a[aria-current] { border-bottom-color: var(--rust); }

  main { padding: 1.8rem 16px 1.5rem; }

  .foot { padding: 1rem 16px 1.6rem; }

  h1 { font-size: 1.6rem; }

  .cards li { grid-template-columns: 1fr; gap: 0.2rem; }

  table { font-size: 0.85rem; }
}