/* Chavrusa — Sefas Emes study collection, quiet reading interface.
   Logical properties throughout so Hebrew blocks lay out correctly. */

:root {
  --paper: #f7f2e8;
  --paper-deep: #efe7d6;
  --card: #fbf8f1;
  --ink: #23201b;
  --ink-soft: #4a443a;
  --ink-muted: #6e6656;
  --rule: #d9cfbb;
  --rule-soft: #e7dfcd;
  --accent: #6f2d1e;
  --accent-soft: #f1e3d9;
  --accent-ink: #5a2316;
  --link: #6f2d1e;
  --focus: #1f4f6e;
  --warn-bg: #fbecd2;
  --warn-rule: #b77a1f;
  --warn-ink: #5a3a08;
  --note-bg: #f2ede2;
  --ok: #3f5a3a;

  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", "Charter", Georgia, serif;
  --hebrew: "Frank Ruehl CLM", "Taamey Frank CLM", "SBL Hebrew", "Ezra SIL", "David", "Narkisim",
            "New Peninim MT", "Times New Roman", "Arial Hebrew", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --measure: 42rem;
  --wide: 68rem;
  --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  min-block-size: 100vh;
  display: flex;
  flex-direction: column;
}

:lang(he), [lang="he"] {
  font-family: var(--hebrew);
}

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--accent-ink); text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 3px;
}
main:focus, h1:focus, h2:focus { outline: none; }
h1[tabindex]:focus-visible { outline: 3px solid var(--focus); }

.visually-hidden {
  position: absolute !important;
  inline-size: 1px; block-size: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  inset-inline-start: 1rem;
  inset-block-start: -3rem;
  z-index: 10;
  background: var(--ink);
  color: var(--paper);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: 0.95rem;
  text-decoration: none;
}
.skip-link:focus { inset-block-start: 0.75rem; color: var(--paper); }

/* ---------- Header ---------- */

.site-header {
  background: var(--paper-deep);
  border-block-end: 1px solid var(--rule);
}
.header-inner {
  max-inline-size: var(--wide);
  margin-inline: auto;
  padding: 0.9rem 1.25rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem 1.5rem;
  align-items: center;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--accent-ink); }
.brand-en { font-size: 1.35rem; letter-spacing: 0.01em; font-weight: 600; }
.brand-he { font-size: 1.35rem; color: var(--accent); }

.search { display: flex; gap: 0.4rem; min-inline-size: 0; }
.search input {
  flex: 1;
  min-inline-size: 0;
  font: inherit;
  font-family: var(--sans);
  font-size: 0.98rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
}
.search input::placeholder { color: var(--ink-muted); }
.search-button, .button {
  font-family: var(--sans);
  font-size: 0.92rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fffaf3;
  border-radius: var(--radius);
  cursor: pointer;
}
.search-button:hover, .button:hover { background: var(--accent-ink); }

.site-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: 0.25rem; flex-wrap: wrap;
}
.site-nav a {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius);
  color: var(--ink-soft);
  text-decoration: none;
}
.site-nav a:hover { background: var(--rule-soft); color: var(--ink); }
.site-nav a[aria-current="page"] {
  color: var(--accent-ink);
  background: var(--accent-soft);
  font-weight: 600;
}

/* ---------- Page layout ---------- */

.page {
  flex: 1;
  inline-size: 100%;
  max-inline-size: var(--wide);
  margin-inline: auto;
  padding: 2rem 1.25rem 4rem;
}
.prose { max-inline-size: var(--measure); }

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}
h1 { font-size: 2.05rem; margin: 0 0 0.4rem; letter-spacing: -0.005em; }
h2 { font-size: 1.4rem; margin: 2.4rem 0 0.8rem; padding-block-end: 0.35rem; border-block-end: 1px solid var(--rule); }
h3 { font-size: 1.15rem; margin: 1.8rem 0 0.6rem; }
h4 { font-size: 1rem; margin: 1.2rem 0 0.4rem; }
p { margin: 0 0 1em; }

.eyebrow {
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin: 0 0 0.4rem;
}
.title-he {
  font-family: var(--hebrew);
  font-size: 1.55rem;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
.lede { font-size: 1.12rem; color: var(--ink-soft); max-inline-size: var(--measure); }
.muted { color: var(--ink-muted); }
.small { font-size: 0.9rem; }
.sans { font-family: var(--sans); }
.mono { font-family: var(--mono); font-size: 0.85em; overflow-wrap: anywhere; }

.breadcrumb {
  font-family: var(--sans);
  font-size: 0.88rem;
  margin: 0 0 1rem;
  color: var(--ink-muted);
}
.breadcrumb a { color: var(--ink-soft); }

/* ---------- Badges, chips ---------- */

.badge {
  display: inline-block;
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  background: var(--card);
  vertical-align: middle;
  white-space: nowrap;
}
.badge-full { border-color: #9fb59a; color: var(--ok); background: #eef3ea; }
.badge-emerging { border-color: #c9b58d; color: #6a5420; background: #f6efdc; }
.badge-warn { border-color: var(--warn-rule); color: var(--warn-ink); background: var(--warn-bg); }
.badge-kind { text-transform: none; letter-spacing: 0; font-size: 0.78rem; }

.meta-row {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.4rem 0.9rem;
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--ink-muted);
  margin: 0 0 1.25rem;
}

.chips {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 0.45rem;
}
.chip {
  display: inline-flex; align-items: baseline; gap: 0.4rem;
  padding: 0.28rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  line-height: 1.35;
}
a.chip:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-soft); }
.chip .chip-he { font-family: var(--hebrew); color: var(--accent); }
.chip.chip-missing { color: var(--ink-muted); border-style: dashed; }

/* ---------- Overview ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.9rem;
  margin: 1.5rem 0 0.75rem;
}
.stat {
  border: 1px solid var(--rule);
  background: var(--card);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
}
.stat-num { display: block; font-size: 1.9rem; line-height: 1.1; font-weight: 600; color: var(--accent-ink); }
.stat-label { display: block; font-family: var(--sans); font-size: 0.88rem; color: var(--ink-soft); }
.stat a { text-decoration: none; color: inherit; }
.stat:has(a:hover) { border-color: var(--accent); }

.callout {
  border-inline-start: 3px solid var(--rule);
  background: var(--note-bg);
  padding: 0.85rem 1.1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1rem 0 1.25rem;
  max-inline-size: var(--measure);
}
.callout p:last-child { margin-block-end: 0; }
.callout-warn { border-inline-start-color: var(--warn-rule); background: var(--warn-bg); color: var(--warn-ink); }

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 0 2.5rem;
}

/* ---------- Lists ---------- */

.entry-list { list-style: none; margin: 0; padding: 0; }
.entry-list > li {
  border-block-end: 1px solid var(--rule-soft);
  padding: 0.7rem 0;
}
.entry-list > li:first-child { border-block-start: 1px solid var(--rule-soft); }
.entry-head {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: 0.25rem 0.75rem;
}
.entry-title { font-size: 1.06rem; font-weight: 600; text-decoration: none; }
.entry-title:hover { text-decoration: underline; }
.entry-he { font-family: var(--hebrew); color: var(--accent); font-size: 1.08rem; }
.entry-meta { font-family: var(--sans); font-size: 0.85rem; color: var(--ink-muted); }
.entry-desc { margin: 0.3rem 0 0; color: var(--ink-soft); font-size: 0.97rem; max-inline-size: var(--measure); }

.toolbar {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0.5rem 1rem;
  margin: 1rem 0 1.25rem;
  font-family: var(--sans);
  font-size: 0.92rem;
}
.segmented { display: inline-flex; border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
.segmented button {
  font: inherit;
  padding: 0.35rem 0.8rem;
  background: var(--card);
  color: var(--ink-soft);
  border: 0;
  border-inline-end: 1px solid var(--rule);
  cursor: pointer;
}
.segmented button:last-child { border-inline-end: 0; }
.segmented button[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent-ink); font-weight: 600; }
.filter-input {
  font: inherit;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--ink);
  min-inline-size: 0;
  inline-size: 16rem;
  max-inline-size: 100%;
}

.group-heading { margin-block-start: 2rem; }
.letter-index {
  display: flex; flex-wrap: wrap; gap: 0.25rem 0.6rem;
  font-family: var(--sans); font-size: 0.9rem;
  margin: 0 0 1rem;
}

/* ---------- Concept description ---------- */

.description p { max-inline-size: var(--measure); }
.description .desc-heading { font-size: 1.08rem; margin: 1.6rem 0 0.5rem; color: var(--accent-ink); }
.description .desc-lead {
  font-size: 1.12rem;
  color: var(--ink-soft);
  border-inline-start: 3px solid var(--accent);
  padding-inline-start: 0.9rem;
}

.locator {
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 0.55rem 0.85rem;
  display: inline-block;
  margin: 0 0 1.25rem;
}

/* ---------- Source cards ---------- */

.source-group { margin: 0 0 2rem; }
.source-group > h3 { margin-block-start: 1.6rem; }
.source-group .group-sub { margin: -0.3rem 0 0.8rem; font-family: var(--sans); font-size: 0.86rem; color: var(--ink-muted); }

.source-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem 1.15rem 0.9rem;
  margin: 0 0 1rem;
}
.card-head {
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between;
  gap: 0.5rem 1rem;
  margin: 0 0 0.6rem;
}
.card-ref {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 0;
  overflow-wrap: anywhere;
  flex: 1 1 14rem;
}
.copy-button {
  font-family: var(--sans);
  font-size: 0.82rem;
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink-soft);
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
}
.copy-button:hover { border-color: var(--accent); color: var(--accent-ink); }
.copy-button.copied { border-color: var(--ok); color: var(--ok); }

.source-warning {
  display: flex; gap: 0.6rem;
  background: var(--warn-bg);
  border: 1px solid var(--warn-rule);
  border-inline-start-width: 4px;
  color: var(--warn-ink);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  margin: 0 0 0.8rem;
  font-family: var(--sans);
  font-size: 0.92rem;
  line-height: 1.5;
}
.source-warning strong { white-space: nowrap; }

.text-block { margin: 0 0 0.8rem; }
.text-label {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--ink-muted);
  margin: 0 0 0.25rem;
}
.text-label .label-name { text-transform: uppercase; letter-spacing: 0.06em; }
.hebrew-text {
  font-family: var(--hebrew);
  font-size: 1.28rem;
  line-height: 1.85;
  margin: 0;
  text-align: start;
  unicode-bidi: plaintext;
}
.english-text { margin: 0; font-size: 1.02rem; line-height: 1.7; }
.text-withheld {
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--warn-ink);
  border: 1px dashed var(--warn-rule);
  border-radius: var(--radius);
  padding: 0.5rem 0.7rem;
  margin: 0;
}
.variant-block {
  border-inline-start: 2px solid var(--rule);
  padding-inline-start: 0.8rem;
}
.commentary-text {
  border-inline-start: 2px dotted var(--rule);
  padding-inline-start: 0.8rem;
  color: var(--ink-soft);
}

.note {
  background: var(--note-bg);
  border-radius: var(--radius);
  margin: 0 0 0.8rem;
  font-size: 0.95rem;
}
.note > summary {
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--ink-soft);
  list-style-position: inside;
}
.note > summary .summary-preview { color: var(--ink-muted); font-family: var(--serif); font-size: 0.92rem; }
.note[open] > summary .summary-preview { display: none; }
.note-body { padding: 0 0.85rem 0.7rem; }
.note-body p { margin: 0 0 0.5rem; }
.redacted { font-family: var(--sans); font-size: 0.82rem; color: var(--ink-muted); font-style: italic; }

.study-commentary {
  border-block-start: 1px solid var(--rule-soft);
  padding-block-start: 0.7rem;
  margin-block-start: 0.4rem;
}
.study-commentary > .text-label { margin-block-end: 0.5rem; }
.commentary-entry { margin: 0 0 0.75rem; }
.commentary-entry:last-child { margin-block-end: 0; }
.commentary-entry .chip { font-size: 0.88rem; margin-block-end: 0.3rem; }
.commentary-entry dl { margin: 0.25rem 0 0; display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 0.75rem; font-size: 0.95rem; }
.commentary-entry dt { font-family: var(--sans); font-size: 0.8rem; color: var(--ink-muted); padding-block-start: 0.15rem; }
.commentary-entry dd { margin: 0; color: var(--ink-soft); }
.anchor-phrase { font-family: var(--hebrew); font-size: 1.08rem; color: var(--ink); }

.card-foot {
  display: flex; flex-wrap: wrap; gap: 0.3rem 1rem;
  font-family: var(--sans);
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-block-start: 0.7rem;
}

/* ---------- Search ---------- */

.result-section { margin-block-end: 1.5rem; }
mark { background: #f4dfa6; color: inherit; padding: 0 0.1em; border-radius: 2px; }

/* ---------- Audit ---------- */

.audit-body h3 { color: var(--accent-ink); }
.table-wrap { overflow-x: auto; margin: 0.5rem 0 1.25rem; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--card); }
table { border-collapse: collapse; inline-size: 100%; font-size: 0.93rem; }
th, td { text-align: start; vertical-align: top; padding: 0.5rem 0.7rem; border-block-end: 1px solid var(--rule-soft); }
th { font-family: var(--sans); font-size: 0.82rem; color: var(--ink-soft); background: var(--paper-deep); }
tr:last-child td { border-block-end: 0; }
td:first-child { overflow-wrap: anywhere; }
.audit-body ul { padding-inline-start: 1.3rem; max-inline-size: var(--measure); }
.audit-body li { margin-block-end: 0.3rem; }

.hash-list { font-family: var(--sans); font-size: 0.9rem; margin: 0; }
.hash-list dt { color: var(--ink-muted); margin-block-start: 0.5rem; }
.hash-list dd { margin: 0; overflow-wrap: anywhere; }
.snapshot-details { margin-block: 0.5rem 1.2rem; }
.snapshot-details > .hash-list,
.snapshot-details > .callout { margin: 0 0.85rem 0.8rem; }

/* ---------- States ---------- */

.state { max-inline-size: var(--measure); padding-block: 2rem; }
.state-error h1 { color: var(--accent-ink); }

/* ---------- Footer ---------- */

.site-footer {
  border-block-start: 1px solid var(--rule);
  background: var(--paper-deep);
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--ink-muted);
}
.footer-inner { max-inline-size: var(--wide); margin-inline: auto; padding: 1.25rem; }
.footer-inner p { max-inline-size: 52rem; margin: 0 0 0.4rem; }
.snapshot-line { overflow-wrap: anywhere; }

/* ---------- Responsive ---------- */

@media (max-width: 52rem) {
  .header-inner { grid-template-columns: 1fr auto; }
  .search { grid-column: 1 / -1; grid-row: 2; }
  .site-nav { grid-column: 2; grid-row: 1; justify-self: end; }
}

@media (max-width: 34rem) {
  body { font-size: 1rem; }
  .header-inner { grid-template-columns: 1fr; padding: 0.75rem 0.9rem; gap: 0.6rem; }
  .site-nav { grid-column: 1; grid-row: 2; justify-self: start; }
  .search { grid-row: 3; }
  .site-nav a { padding: 0.35rem 0.55rem; font-size: 0.9rem; }
  .page { padding: 1.4rem 0.9rem 3rem; }
  h1 { font-size: 1.65rem; }
  h2 { font-size: 1.25rem; }
  .source-card { padding: 0.85rem 0.85rem 0.75rem; }
  .hebrew-text { font-size: 1.18rem; }
  .commentary-entry dl { grid-template-columns: 1fr; }
  .filter-input { inline-size: 100%; }
}

@media (prefers-reduced-motion: no-preference) {
  .chip, .copy-button, .site-nav a { transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease; }
}

@media print {
  .site-header, .site-footer, .copy-button, .skip-link, .toolbar { display: none; }
  body { background: #fff; }
  .source-card { break-inside: avoid; }
}