@import url('https://fonts.googleapis.com/css2?family=Libre+Franklin:wght@100..900&family=Spectral:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500;1,600;1,700&display=swap');

:root { --font-spectral: 'Spectral'; --font-franklin: 'Libre Franklin'; }

/* ============================================================
   Steady Atlas, a standing reference volume.
   Architecture: VOLUME NAMEPLATE + ALPHABETICAL INDEX + ENTRY.
   Palette: warm paper, ink, restrained forest-ink accent.
   ============================================================ */

:root {
  --paper: #f6f1e8;
  --paper-deep: #efe7d7;
  --paper-card: #fbf7ef;
  --ink: #26221c;
  --ink-soft: #534b40;
  --ink-faint: #8a8073;
  --forest: #3a5a47;
  --forest-deep: #2c4636;
  --forest-tint: #e6ece4;
  --rule: #cdbfa6;
  --rule-soft: #ddd1ba;
  --serif: var(--font-spectral), Georgia, "Times New Roman", serif;
  --sans: var(--font-franklin), "Helvetica Neue", Arial, sans-serif;
  --measure: 44rem;
  --page: 72rem;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 18% 8%, rgba(58, 90, 71, 0.04), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(58, 90, 71, 0.03), transparent 38%);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.66;
  font-feature-settings: "onum" 1, "pnum" 1;
}

a {
  color: var(--forest-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  z-index: 50;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.plate-dot {
  margin: 0 0.5em;
  color: var(--forest);
}

/* ---------- Volume nameplate (running head, no nav, no h1) ---------- */

.volume-plate {
  max-width: var(--page);
  margin: 0 auto;
  padding: 2.4rem 2rem 1.4rem;
  text-align: center;
}

.plate-rule {
  height: 2px;
  background: var(--ink);
}

.plate-rule-double {
  height: 4px;
  background: var(--paper);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.plate-mark {
  display: block;
  text-decoration: none;
  color: var(--ink);
  padding: 1.5rem 0 1.2rem;
}

.plate-wordmark {
  display: block;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.1rem);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  line-height: 1;
}

.plate-sub {
  display: block;
  margin-top: 0.7rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}

.plate-edition {
  margin: 0 0 1.1rem;
  font-family: var(--sans);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
}

.plate-edition .plate-dot {
  color: var(--rule);
}

/* ---------- Shared page frame ---------- */

.volume-main,
.entry-shell {
  max-width: var(--page);
  margin: 0 auto;
  padding: 1rem 2rem 3rem;
}

/* ---------- Title page (front matter) ---------- */

.title-page {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 2.6rem;
  align-items: stretch;
  padding: 2.4rem 0 2.8rem;
  border-bottom: 1px solid var(--rule-soft);
}

.title-kicker {
  margin: 0 0 1.1rem;
  font-family: var(--sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--forest);
}

.volume-title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 4.6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  max-width: 16ch;
}

.volume-blurb {
  margin: 1.3rem 0 1.8rem;
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 38ch;
}

.scope-list {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.8rem;
}

.scope-list dt {
  font-family: var(--sans);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-right: 0.3rem;
}

.scope-list dd {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  padding: 0.22rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
}

.frontispiece {
  position: relative;
  min-height: 16rem;
  border: 1px solid var(--ink);
  border-radius: 3px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  background-color: var(--forest-deep);
  background-image:
    linear-gradient(165deg, rgba(58, 90, 71, 0.86), rgba(38, 34, 28, 0.82)),
    url("/images/steadyatlas-lead.jpg");
  background-size: cover;
  background-position: center;
}

.frontispiece::after {
  content: "";
  position: absolute;
  inset: 0.5rem;
  border: 1px solid rgba(246, 241, 232, 0.35);
  pointer-events: none;
}

.frontispiece-caption {
  position: relative;
  margin: 0;
  padding: 1.3rem 1.4rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.04rem;
  line-height: 1.4;
  color: var(--paper);
  text-shadow: 0 1px 10px rgba(20, 18, 14, 0.5);
}

/* ---------- How to use this index (apparatus) ---------- */

.how-to-use {
  padding: 2.2rem 0;
  border-bottom: 1px solid var(--rule-soft);
}

.how-to-use h2 {
  margin: 0 0 1.1rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
}

.how-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: how;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.how-list li {
  counter-increment: how;
  position: relative;
  padding-left: 2.2rem;
  font-size: 1.02rem;
  color: var(--ink-soft);
}

.how-list li::before {
  content: counter(how);
  position: absolute;
  left: 0;
  top: 0.05rem;
  width: 1.55rem;
  height: 1.55rem;
  display: grid;
  place-items: center;
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--forest-deep);
  border: 1px solid var(--forest);
  border-radius: 50%;
}

/* ---------- The index ---------- */

.index {
  padding: 2.4rem 0 1rem;
}

.index-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.8rem;
  padding-bottom: 0.9rem;
  border-bottom: 2px solid var(--ink);
}

.index-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: 0.01em;
}

.index-folio {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}

.index-columns {
  columns: 2;
  column-gap: 3.4rem;
}

.letter-group {
  break-inside: avoid;
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  gap: 0 1rem;
  margin-bottom: 1.9rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--rule-soft);
}

.letter-mark {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--forest);
  padding-top: 0.5rem;
}

.entry-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.index-entry {
  padding: 0.55rem 0;
  border-bottom: 1px dotted var(--rule);
}

.entry-headword {
  display: inline;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.entry-headword:hover {
  color: var(--forest-deep);
  border-bottom-color: var(--forest);
}

.entry-gloss {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.96rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.index-xref {
  padding: 0.4rem 0;
  font-size: 0.98rem;
  color: var(--ink-soft);
}

.xref-term {
  font-style: italic;
}

.xref-see {
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--ink-faint);
}

.xref-see a {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.98rem;
}

/* ---------- Entry page ---------- */

.entry-shell {
  max-width: calc(var(--measure) + 6rem);
}

.entry {
  max-width: var(--measure);
  margin: 0 auto;
  padding-top: 1.6rem;
}

.entry-head {
  padding-bottom: 1.4rem;
  border-bottom: 2px solid var(--ink);
}

.entry-field {
  margin: 0 0 0.9rem;
  font-family: var(--sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

.entry-field-tag {
  color: var(--forest);
  font-weight: 600;
}

.headword {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 4.4vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.entry-class {
  margin: 0.8rem 0 0;
  font-family: var(--sans);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.entry-class em {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--forest-deep);
}

.entry-lead {
  position: relative;
  margin: 1.8rem 0 2rem;
  padding-left: 1.4rem;
  border-left: 3px solid var(--forest);
  font-size: 1.24rem;
  line-height: 1.55;
  color: var(--ink);
}

.entry-def {
  display: inline-block;
  margin-right: 0.5rem;
  font-family: var(--sans);
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--forest);
  vertical-align: 0.18em;
}

/* injected reference-entry body */

.entry-body {
  counter-reset: section;
  font-size: 1.06rem;
}

.entry-body p {
  margin: 1.05rem 0;
}

.entry-body h2 {
  counter-increment: section;
  position: relative;
  margin: 2.4rem 0 0.9rem;
  padding-left: 2.4rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.42rem;
  line-height: 1.25;
  letter-spacing: 0.005em;
}

.entry-body h2::before {
  content: counter(section, upper-alpha) ".";
  position: absolute;
  left: 0;
  top: 0.05em;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--forest);
  letter-spacing: 0.02em;
}

.entry-body h3 {
  margin: 1.7rem 0 0.7rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.16rem;
}

.entry-body blockquote {
  margin: 1.6rem 0;
  padding: 1rem 1.4rem;
  background: var(--forest-tint);
  border-left: 4px solid var(--forest);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.12rem;
  color: var(--forest-deep);
}

.entry-body ul,
.entry-body ol {
  margin: 1.1rem 0;
  padding-left: 0;
  list-style: none;
}

.entry-body ul li,
.entry-body ol li {
  position: relative;
  padding-left: 1.6rem;
  margin: 0.5rem 0;
}

.entry-body ul li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.62em;
  width: 0.42rem;
  height: 0.42rem;
  background: var(--forest);
  transform: rotate(45deg);
}

.entry-body ol {
  counter-reset: item;
}

.entry-body ol li {
  counter-increment: item;
}

.entry-body ol li::before {
  content: counter(item) ".";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--forest);
}

.entry-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.7rem 0;
  font-size: 0.97rem;
}

.entry-body thead th {
  text-align: left;
  font-family: var(--sans);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--forest-deep);
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--forest-deep);
}

.entry-body tbody td {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--rule);
  vertical-align: top;
}

.entry-body tbody tr:nth-child(even) {
  background: var(--paper-card);
}

.entry-body a {
  color: var(--forest-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

/* ---------- Entry apparatus blocks ---------- */

.entry-notes,
.entry-xref,
.entry-sources {
  margin-top: 2.6rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--rule-soft);
}

.entry-notes h2,
.entry-xref h2,
.entry-sources h2 {
  margin: 0 0 1rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

.entry-notes details {
  border-bottom: 1px dotted var(--rule);
  padding: 0.5rem 0;
}

.entry-notes summary {
  cursor: pointer;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.06rem;
  color: var(--ink);
  list-style: none;
  position: relative;
  padding-left: 1.5rem;
}

.entry-notes summary::-webkit-details-marker {
  display: none;
}

.entry-notes summary::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0;
  display: inline-block;
  font-family: var(--sans);
  color: var(--forest);
  font-size: 1.1rem;
  line-height: 1.3;
  transition: transform 0.15s ease;
}

/* open state turns the plus into a cross (rotated glyph), no dash character */
.entry-notes details[open] summary::before {
  transform: rotate(45deg);
}

.entry-notes details p {
  margin: 0.6rem 0 0.3rem;
  padding-left: 1.5rem;
  color: var(--ink-soft);
}

.entry-xref ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.entry-xref li {
  padding: 0.55rem 0;
  border-bottom: 1px dotted var(--rule);
}

.xref-entry {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.08rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--forest-tint);
}

.xref-entry:hover {
  color: var(--forest-deep);
  border-bottom-color: var(--forest);
}

.xref-entry-gloss {
  display: block;
  margin-top: 0.12rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.entry-sources p {
  margin: 0 0 0.9rem;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.filed-under {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.filed-label {
  font-family: var(--sans);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}

.filed-tag {
  font-family: var(--sans);
  font-size: 0.8rem;
  padding: 0.2rem 0.65rem;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: var(--paper-card);
  color: var(--ink);
}

.entry-foot {
  margin-top: 2.4rem;
}

.return-link {
  font-family: var(--sans);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--forest-deep);
}

/* ---------- Colophon ---------- */

.colophon {
  margin-top: 3rem;
  border-top: 2px solid var(--ink);
  background: var(--paper-deep);
}

.colophon-inner {
  max-width: var(--page);
  margin: 0 auto;
  padding: 2.4rem 2rem 3rem;
  text-align: center;
}

.colophon-mark {
  margin: 0 0 0.6rem;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.3rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.colophon-blurb {
  margin: 0 auto 1.3rem;
  max-width: 52ch;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.colophon-notes {
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.4rem;
}

.colophon-notes li {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.96rem;
  color: var(--ink-soft);
}

.colophon-foot {
  margin: 0;
  font-family: var(--sans);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
}

.colophon-foot .plate-dot {
  color: var(--rule);
}

/* ---------- Narrow screens ---------- */

@media (max-width: 900px) {
  .title-page {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
  .frontispiece {
    min-height: 12rem;
  }
  .how-list {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .index-columns {
    columns: 1;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 17px;
  }
  .volume-plate,
  .volume-main,
  .entry-shell,
  .colophon-inner {
    padding-left: 1.2rem;
    padding-right: 1.2rem;
  }
  .entry-body table {
    font-size: 0.86rem;
  }
  .entry-body thead th,
  .entry-body tbody td {
    padding: 0.45rem 0.5rem;
  }
}