/* CBDT circular archive — shared styles */

:root {
  --ink: #16232b;
  --ink-soft: #55666f;
  --paper: #fafaf7;
  --paper-raised: #ffffff;
  --rule: #d8dcd8;
  --rule-strong: #b6bdb7;
  --seal: #0f5d54;
  --seal-dim: #e3ede9;
  --mark: #f3e3a4;
  --warn: #8a3b1e;

  --measure: 64ch;
  --serif: "Source Serif 4", "Charter", "Georgia", serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
}

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

:focus-visible {
  outline: 2px solid var(--seal);
  outline-offset: 2px;
}

.wrap { max-width: 1020px; margin: 0 auto; padding: 0 24px; }

/* ---------------------------------------------------------------- masthead */

.masthead {
  border-bottom: 1px solid var(--rule);
  background: var(--paper-raised);
}

.masthead-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  flex-wrap: wrap;
}

.wordmark {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark span { color: var(--seal); }

.masthead nav { display: flex; gap: 20px; font-size: 14px; }

/* ------------------------------------------------------------------ search */

.hero { padding: 56px 0 32px; }

.hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 4.2vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  max-width: 22ch;
}

.hero p {
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: 15.5px;
  max-width: 60ch;
}

.searchbar {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  background: var(--paper-raised);
  overflow: hidden;
}

.searchbar:focus-within { border-color: var(--seal); box-shadow: 0 0 0 3px var(--seal-dim); }

.searchbar input {
  flex: 1;
  border: 0;
  padding: 15px 16px;
  font: inherit;
  font-size: 17px;
  background: transparent;
  color: var(--ink);
  min-width: 0;
}

.searchbar input:focus { outline: none; }

.searchbar button {
  border: 0;
  border-left: 1px solid var(--rule);
  background: var(--seal);
  color: #fff;
  font: inherit;
  font-weight: 500;
  padding: 0 22px;
  cursor: pointer;
}

.searchbar button:hover { background: #0b4a43; }

.hint {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--ink-soft);
}

.hint code {
  font-family: var(--sans);
  background: var(--seal-dim);
  border-radius: 2px;
  padding: 1px 5px;
  color: var(--seal);
}

/* ------------------------------------------------------------- year filter */

.years {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 14px 0 16px;
  border-bottom: 1px solid var(--rule);
  scrollbar-width: thin;
}

.years button {
  flex: none;
  border: 1px solid transparent;
  background: transparent;
  font: inherit;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  padding: 4px 9px;
  border-radius: 2px;
  cursor: pointer;
}

.years button:hover { background: var(--seal-dim); color: var(--seal); }
.years button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

/* ----------------------------------------------------------------- results */

.resultmeta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0 6px;
  font-size: 14px;
  color: var(--ink-soft);
  flex-wrap: wrap;
}

.yeargroup {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  padding: 22px 0 6px;
  border-bottom: 1px solid var(--rule-strong);
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 2;
}

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

.entry {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.entry:hover { background: #f2f4f1; }

.entry-no {
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.45;
  padding-top: 2px;
}

.entry-no strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  font-size: 15px;
}

.entry-date { font-size: 13px; }

.entry-title {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.4;
  margin: 0 0 4px;
  max-width: var(--measure);
}

.entry-title a { color: var(--ink); text-decoration: none; }
.entry-title a:hover { text-decoration: underline; color: var(--seal); }

.entry-snippet {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.55;
  max-width: var(--measure);
  margin: 6px 0 0;
}

.entry-snippet mark { background: var(--mark); color: inherit; padding: 0 1px; }

.tag {
  display: inline-block;
  font-size: 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: 0 5px;
  color: var(--ink-soft);
  vertical-align: 1px;
  margin-left: 6px;
}

.tag.pdf { border-color: var(--seal); color: var(--seal); }

/* -------------------------------------------------------------- pagination */

.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 30px 0 60px;
  font-size: 14px;
}

.pager button {
  font: inherit;
  border: 1px solid var(--rule-strong);
  background: var(--paper-raised);
  border-radius: 2px;
  padding: 7px 14px;
  cursor: pointer;
  color: var(--ink);
}

.pager button:disabled { opacity: 0.4; cursor: default; }
.pager button:not(:disabled):hover { border-color: var(--seal); color: var(--seal); }

/* ------------------------------------------------------------ empty/loading */

.state {
  padding: 48px 0;
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 52ch;
}

.state strong { color: var(--ink); }

/* ------------------------------------------------------------------ reader */

.reader { display: grid; grid-template-columns: 220px 1fr; gap: 44px; padding: 36px 0 80px; }

.docmeta { font-size: 14px; border-top: 2px solid var(--ink); padding-top: 14px; align-self: start; }
.docmeta dl { margin: 0; }
.docmeta dt { color: var(--ink-soft); font-size: 12.5px; margin-top: 12px; }
.docmeta dd { margin: 2px 0 0; font-variant-numeric: tabular-nums; }
.docmeta dd:first-of-type { margin-top: 0; }

.doctitle {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(23px, 3vw, 31px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  max-width: 30ch;
}

.doccite {
  font-variant-numeric: tabular-nums;
  color: var(--seal);
  font-size: 15px;
  margin: 0 0 26px;
}

.docbody {
  font-family: var(--serif);
  font-size: 17.5px;
  line-height: 1.62;
  max-width: var(--measure);
  overflow-wrap: break-word;
}

.docbody p { margin: 0 0 1.05em; }
.docbody table { border-collapse: collapse; width: 100%; margin: 1.2em 0; font-size: 15px; }
.docbody td, .docbody th { border: 1px solid var(--rule-strong); padding: 6px 9px; vertical-align: top; }
.docbody img { max-width: 100%; height: auto; }

.pdfframe { width: 100%; height: 82vh; border: 1px solid var(--rule-strong); border-radius: 3px; background: #fff; }

/* ------------------------------------------------------------------- admin */

.panel {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 22px;
  margin-bottom: 22px;
}

.panel h2 {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 4px;
}

.panel .lede { margin: 0 0 18px; color: var(--ink-soft); font-size: 14.5px; max-width: 68ch; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.cell { background: var(--paper-raised); padding: 14px 16px; }
.cell .k { font-size: 12.5px; color: var(--ink-soft); }
.cell .v { font-family: var(--serif); font-size: 25px; font-variant-numeric: tabular-nums; line-height: 1.2; }
.cell .v.bad { color: var(--warn); }

.btn {
  font: inherit;
  font-weight: 500;
  border: 1px solid var(--seal);
  background: var(--seal);
  color: #fff;
  border-radius: 2px;
  padding: 9px 18px;
  cursor: pointer;
}

.btn:hover { background: #0b4a43; }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn.ghost { background: transparent; color: var(--seal); }
.btn.ghost:hover { background: var(--seal-dim); }

input[type="password"], input[type="text"], input[type="file"] {
  font: inherit;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: 9px 11px;
  background: var(--paper-raised);
  color: var(--ink);
  width: 100%;
}

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.progress {
  height: 6px;
  background: var(--rule);
  border-radius: 3px;
  overflow: hidden;
  margin: 16px 0 8px;
}

.progress span { display: block; height: 100%; background: var(--seal); width: 0; transition: width 0.2s linear; }

.log {
  margin-top: 14px;
  max-height: 260px;
  overflow: auto;
  border: 1px solid var(--rule);
  border-radius: 2px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.log div { padding: 5px 11px; border-bottom: 1px solid var(--rule); }
.log div:last-child { border-bottom: 0; }
.log .err { color: var(--warn); background: #fdf3ef; }

table.plain { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.plain th { text-align: left; font-weight: 500; color: var(--ink-soft); border-bottom: 1px solid var(--rule-strong); padding: 7px 8px; }
table.plain td { border-bottom: 1px solid var(--rule); padding: 7px 8px; font-variant-numeric: tabular-nums; }

.note { font-size: 13.5px; color: var(--ink-soft); margin-top: 12px; }

@media (max-width: 780px) {
  .reader { grid-template-columns: 1fr; gap: 26px; }
  .entry { grid-template-columns: 1fr; gap: 4px; }
  .entry-no { display: flex; gap: 10px; align-items: baseline; }
  .entry-no strong { display: inline; }
  .hero { padding: 36px 0 24px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ------------------------------------------------------------ admin tabs */

.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: 24px;
  overflow-x: auto;
}

.tab {
  flex: none;
  font: inherit;
  font-size: 14.5px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  padding: 10px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab:hover { color: var(--ink); }
.tab[aria-selected="true"] { color: var(--seal); border-bottom-color: var(--seal); font-weight: 500; }

/* ----------------------------------------------------------- step rail */

ol.steps {
  display: flex;
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  gap: 0;
  counter-reset: s;
  overflow-x: auto;
}

ol.steps li {
  counter-increment: s;
  flex: 1;
  min-width: 92px;
  font-size: 13.5px;
  color: var(--ink-soft);
  padding: 0 0 10px;
  border-bottom: 2px solid var(--rule);
  white-space: nowrap;
}

ol.steps li::before {
  content: counter(s);
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--rule-strong);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  margin-right: 7px;
  vertical-align: -4px;
}

ol.steps li.on { color: var(--seal); border-bottom-color: var(--seal); font-weight: 500; }
ol.steps li.on::before { border-color: var(--seal); background: var(--seal); color: #fff; }
ol.steps li.done { color: var(--ink); border-bottom-color: var(--seal); }
ol.steps li.done::before { content: "✓"; border-color: var(--seal); color: var(--seal); }

/* -------------------------------------------------------------- pickers */

.picker { display: grid; gap: 8px; margin-bottom: 18px; }

.pick {
  display: block;
  width: 100%;
  text-align: left;
  font: inherit;
  background: var(--paper-raised);
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 13px 16px;
  cursor: pointer;
  color: var(--ink);
}

.pick:hover { border-color: var(--seal); background: var(--seal-dim); }
.pick strong { display: block; font-size: 15.5px; font-weight: 500; }
.pick span { display: block; font-size: 13px; color: var(--ink-soft); margin-top: 2px; }

details > summary {
  cursor: pointer;
  font-size: 14.5px;
  color: var(--seal);
  padding: 6px 0;
}

.formgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 14px 0;
}

.formgrid label { font-size: 13px; color: var(--ink-soft); display: block; }
.formgrid input { margin-top: 4px; }

select {
  font: inherit;
  font-size: 14px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: 7px 9px;
  background: var(--paper-raised);
  color: var(--ink);
  width: 100%;
  max-width: 100%;
}

.checkline { font-size: 14px; color: var(--ink-soft); display: flex; gap: 7px; align-items: center; }

.subhead {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  margin: 26px 0 12px;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.err { color: var(--warn); }
.req { color: var(--warn); font-size: 12px; }

/* ------------------------------------------------------- mapping table */

.maptable td { vertical-align: top; }
.maptable td:first-child { width: 38%; }
.maptable td:nth-child(2) { width: 34%; }
.maptable .sample {
  font-size: 12.5px;
  color: var(--ink-soft);
  word-break: break-word;
  max-width: 220px;
}

.prevwrap { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 12px; }

.prev {
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  padding: 13px 15px;
  background: var(--paper-raised);
}

.prev.bad { border-color: var(--warn); }
.prev-h { font-variant-numeric: tabular-nums; font-size: 13.5px; color: var(--seal); margin-bottom: 4px; }
.prev-t { font-family: var(--serif); font-size: 15px; line-height: 1.35; margin-bottom: 10px; }
.prev dl { display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; margin: 0; font-size: 12.5px; }
.prev dt { color: var(--ink-soft); }
.prev dd { margin: 0; font-variant-numeric: tabular-nums; }

.libsrc { padding: 16px 0; border-top: 1px solid var(--rule); }
.libsrc:first-child { border-top: 0; padding-top: 0; }
.libsrc h3 { font-family: var(--serif); font-size: 17px; font-weight: 600; margin: 0; }

/* --------------------------------------------------------- source rail */

.sourcerail {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 16px 0 0;
}

.sourcerail a {
  font-size: 14px;
  text-decoration: none;
  color: var(--ink-soft);
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  padding: 5px 11px;
}

.sourcerail a:hover { border-color: var(--seal); color: var(--seal); }
.sourcerail a[aria-current="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }