/*
  Public journal identity: masthead, home page and footer, shared by all three pages.
  Tokens, the shared frame (masthead / main / footer width) and the breakpoint tiers are
  defined in site.css.
*/
.folio-skip {
  position: absolute;
  top: -100px;
  left: var(--sp-5);
}
.folio-skip:focus {
  top: var(--sp-2);
  z-index: 100;
  background: var(--bg);
  padding: var(--sp-3);
}

/* Masthead: the same height on every page so the first block starts at the same y. */
.folio-masthead {
  --mast-pad: var(--sp-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  min-height: calc(44px + 2 * var(--mast-pad));
  padding-block: var(--mast-pad);
}
.folio-brand {
  display: flex;
  align-items: baseline;
  gap: var(--sp-5);
  width: fit-content;
  font: 32px var(--font-display);
  text-decoration: none;
}
.folio-brand span,
.folio-edition {
  font: 11px var(--font-body);
  letter-spacing: 0.05em;
  color: var(--text-dim);
}
.folio-edition .ver {
  margin-left: var(--sp-4);
  font: 10px var(--font-mono);
}
.folio-masthead .folio-inline {
  padding-block: var(--sp-2);
}
/* The brand takes the slack so the edition (or back link) and the theme toggle sit together. */
.folio-masthead > :first-child {
  margin-right: auto;
}
.folio-theme {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: border-color 0.16s ease;
}
.folio-theme[hidden] {
  display: none;
}
.folio-theme svg {
  width: 18px;
  height: 18px;
}
.folio-theme-sun,
:root[data-theme="dark"] .folio-theme-moon {
  display: none;
}
:root[data-theme="dark"] .folio-theme-sun {
  display: block;
}
@media (hover: hover) {
  .folio-theme:hover {
    border-color: var(--text-dim);
  }
}
.folio-open {
  position: fixed;
  bottom: max(var(--sp-6), env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  padding: var(--sp-4) var(--sp-6);
  background: var(--text);
  color: var(--bg);
  border-radius: 999px;
  text-decoration: none;
  font-size: 13px;
  box-shadow: 0 8px 30px #00000015;
  white-space: nowrap;
}

/* Underlined text link; the box is 44px tall so the underline sits clear of the text. */
.folio-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-7);
  width: fit-content;
  min-height: 44px;
  padding-block: var(--sp-3);
  border-bottom: 1px solid var(--text);
  text-decoration: none;
}
.folio-inline img {
  width: 18px;
  height: 18px;
}
.folio-kicker,
.folio-chapter-label {
  font: 10px/1.7 var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.folio-kicker {
  display: block;
}
.folio-caption {
  margin-top: var(--sp-6);
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.8;
}

/* Opening: hero and sample journal. One column below 1024, two columns from the laptop tier. */
.folio-opening {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--block-gap);
  align-items: center;
  padding-block: var(--section-y);
}
.folio-hero h1 {
  margin: var(--sp-6) 0;
  font: 400 clamp(38px, 5vw, 72px) / 1.16 var(--font-display);
  letter-spacing: -0.055em;
}
.folio-hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.folio-lead {
  max-width: 440px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.9;
}
.folio-hero .folio-inline {
  margin-top: var(--sp-6);
}
.folio-sample {
  background: var(--card);
  padding: var(--sp-6);
  border: 1px solid var(--border);
  border-radius: 3px;
  box-shadow: 10px 16px 0 var(--bg-alt);
}
.folio-sample-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--sp-1) var(--sp-3);
  font: 22px var(--font-display);
}
.folio-sample-head small {
  font: 10px var(--font-mono);
  color: var(--text-dim);
}
.folio-sample-balance {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding-block: var(--sp-7);
}
.folio-sample-balance > span {
  color: var(--text-dim);
  font-size: 12px;
}
.folio-sample-balance strong {
  font: 400 clamp(22px, 2.4vw, 32px) var(--font-mono);
  letter-spacing: -0.04em;
}
.folio-sample-balance small {
  font-size: 10px;
  color: var(--text-dim);
}
.folio-entry {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding-block: var(--sp-5);
  border-top: 1px solid var(--border);
  font-size: 12px;
}
.folio-entry time {
  flex: none;
  width: 40px;
  font: 10px var(--font-mono);
  color: var(--text-dim);
}
.folio-entry > div {
  flex: 1;
  min-width: 0;
}
.folio-entry strong {
  display: block;
  font-weight: 500;
}
.folio-entry div span {
  display: block;
  margin-top: var(--sp-1);
  color: var(--text-dim);
  font-size: 10px;
}
.folio-entry b {
  font: 10px var(--font-mono);
  white-space: nowrap;
}
.folio-sample-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-1) var(--sp-3);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-dim);
}

/* Chapters: a label row, then ruled text columns pushed to the right edge of the frame. */
.folio-chapter {
  border-top: 1px solid var(--border);
  padding-block: var(--sp-7) var(--section-y);
}
.folio-chapter-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 var(--sp-6);
}
.folio-chapter-label > span {
  margin-right: auto;
}
.folio-chapter-label a {
  padding-block: var(--sp-3);
  text-decoration: none;
}
.folio-story,
.folio-questions {
  max-width: 740px;
  margin: var(--block-gap) 0 0 auto;
  padding-left: var(--indent);
  border-left: 1px solid var(--border);
}
.folio-story {
  padding-bottom: var(--sp-7);
}
.folio-story h2,
.folio-ending h2 {
  margin: var(--sp-4) 0 var(--sp-6);
  font: 400 clamp(32px, 4vw, 52px) / 1.2 var(--font-display);
  letter-spacing: -0.04em;
}
.folio-story > h2:first-child {
  margin-top: 0;
}
.folio-story > p:not(.folio-caption) {
  max-width: var(--measure);
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.9;
}
.folio-story > p + p {
  margin-top: var(--sp-4);
}
.folio-story > .folio-caption {
  margin-top: var(--sp-6);
}
.folio-questions details {
  border-bottom: 1px solid var(--border);
}
.folio-questions summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  min-height: 44px;
  padding-block: var(--sp-5);
  font-size: 16px;
  list-style: none;
  cursor: pointer;
}
.folio-questions summary::after {
  content: "+";
  font: 22px var(--font-mono);
}
.folio-questions details[open] summary::after {
  content: "−";
}
.folio-questions p {
  max-width: var(--measure);
  margin-bottom: var(--sp-5);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.9;
}
.folio-ending {
  padding-block: var(--section-y);
  border-top: 1px solid var(--border);
}

/* Footer: the shared frame, with room underneath for the floating "Open Custos" pill. */
.folio-footer {
  padding-block: var(--sp-7) 120px;
  border-top: 1px solid var(--border);
}
.folio-footer > div {
  display: flex;
  flex-wrap: wrap;
  gap: 0 var(--sp-6);
  margin-block: var(--sp-2);
  font-size: 12px;
}
.folio-footer > div a {
  padding-block: var(--sp-2);
}
.folio-footer p {
  max-width: 72ch;
  color: var(--text-dim);
  font-size: 12px;
}

@media (min-width: 1024px) {
  .folio-opening {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
    column-gap: clamp(var(--sp-7), 7vw, 96px);
  }
  .folio-sample {
    padding: var(--sp-7);
  }
}
@media (max-width: 639px) {
  .folio-masthead {
    --mast-pad: var(--sp-5);
  }
  .folio-brand span,
  .folio-edition {
    display: none;
  }
  .folio-brand {
    font-size: 28px;
  }
  .folio-masthead {
    gap: var(--sp-3);
  }
  .folio-masthead .folio-inline {
    font-size: 13px;
    white-space: nowrap;
  }
  .folio-hero h1 {
    font-size: clamp(38px, 10vw, 58px);
  }
  .folio-lead {
    font-size: 15px;
  }
  .folio-sample {
    padding: var(--sp-6) var(--sp-5);
    box-shadow: 6px 8px 0 var(--bg-alt);
  }
  .folio-sample-head {
    font-size: 20px;
  }
  .folio-story > p:not(.folio-caption) {
    font-size: 15px;
  }
  .folio-chapter-label > span {
    width: 100%;
  }
  .folio-open {
    bottom: calc(var(--sp-3) + env(safe-area-inset-bottom));
  }
}