/* ==========================================================================
   MediRec project documentation — shared design system
   Used by every page in docs/html/. Edit here, not per-page.
   ========================================================================== */

:root {
  /* surfaces & ink */
  --paper:      #F2F5F6;
  --surface:    #FFFFFF;
  --surface-2:  #E9EEF0;
  --ink:        #14202A;
  --ink-2:      #3D4E59;
  --muted:      #67787F;
  --rule:       #D3DCDF;
  --rule-soft:  #E3EAEC;

  /* brand accent */
  --accent:     #1F5E6E;
  --accent-2:   #2E7F91;

  /* status — reserved, never reused for series identity */
  --critical:   #A8412C;
  --major:      #8C6614;
  --good:       #2F6B52;

  /* role identity — categorical, validated for CVD separation (light steps) */
  --role-reception: #00899B;
  --role-nurse:     #6D3FC0;
  --role-doctor:    #C2367E;
  --role-terminal:  #67787F;

  --shadow: 0 1px 2px rgba(20,32,42,.06), 0 8px 24px -16px rgba(20,32,42,.28);

  --f-display: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --f-body:    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-mono:    ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --measure: 68ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #0F1619;
    --surface:   #161F24;
    --surface-2: #1D282E;
    --ink:       #DCE6E9;
    --ink-2:     #AEBEC4;
    --muted:     #7F929A;
    --rule:      #2A383F;
    --rule-soft: #212C32;
    --accent:    #63B4C6;
    --accent-2:  #8CCBD9;
    --critical:  #E08A73;
    --major:     #D6AC5A;
    --good:      #74BC9B;
    /* dark steps are re-derived, not inverted */
    --role-reception: #0E9AAD;
    --role-nurse:     #8355DB;
    --role-doctor:    #D14A8E;
    --role-terminal:  #7F929A;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.7);
  }
}

:root[data-theme="dark"] {
  --paper:     #0F1619;
  --surface:   #161F24;
  --surface-2: #1D282E;
  --ink:       #DCE6E9;
  --ink-2:     #AEBEC4;
  --muted:     #7F929A;
  --rule:      #2A383F;
  --rule-soft: #212C32;
  --accent:    #63B4C6;
  --accent-2:  #8CCBD9;
  --critical:  #E08A73;
  --major:     #D6AC5A;
  --good:      #74BC9B;
  --role-reception: #0E9AAD;
  --role-nurse:     #8355DB;
  --role-doctor:    #D14A8E;
  --role-terminal:  #7F929A;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.7);
}

:root[data-theme="light"] {
  --paper:     #F2F5F6;
  --surface:   #FFFFFF;
  --surface-2: #E9EEF0;
  --ink:       #14202A;
  --ink-2:     #3D4E59;
  --muted:     #67787F;
  --rule:      #D3DCDF;
  --rule-soft: #E3EAEC;
  --accent:    #1F5E6E;
  --accent-2:  #2E7F91;
  --critical:  #A8412C;
  --major:     #8C6614;
  --good:      #2F6B52;
  --role-reception: #00899B;
  --role-nurse:     #6D3FC0;
  --role-doctor:    #C2367E;
  --role-terminal:  #67787F;
  --shadow: 0 1px 2px rgba(20,32,42,.06), 0 8px 24px -16px rgba(20,32,42,.28);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.shell { max-width: 1180px; margin: 0 auto; padding: 0 24px 96px; }
.shell.narrow { max-width: 940px; }

/* ---------- doc-set navigation ---------- */

.docnav {
  border-bottom: 1px solid var(--rule);
  background: var(--surface);
}
.docnav__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 11px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 22px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
}
.docnav a { color: var(--muted); text-decoration: none; }
.docnav a:hover, .docnav a:focus-visible { color: var(--accent); }
.docnav a[aria-current="page"] { color: var(--ink); }
.docnav .brand {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .14em;
  margin-right: auto;
}

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

.masthead { border-bottom: 2px solid var(--ink); padding: 52px 0 20px; margin-bottom: 40px; }
.eyebrow {
  font-family: var(--f-mono);
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); margin: 0 0 18px;
}
.masthead h1 {
  font-family: var(--f-display); font-weight: 600;
  font-size: clamp(2.05rem, 5vw, 3.3rem); line-height: 1.08;
  letter-spacing: -.015em; text-wrap: balance; margin: 0 0 20px;
}
.masthead h1 em { font-style: normal; color: var(--muted); }
.masthead .standfirst {
  font-size: 1.06rem; color: var(--ink-2); max-width: var(--measure); margin: 0 0 22px;
}
.meta {
  display: flex; flex-wrap: wrap; gap: 8px 28px;
  font-family: var(--f-mono); font-size: 12px; color: var(--muted);
  margin: 0; padding: 0; list-style: none;
}
.meta b { color: var(--ink-2); font-weight: 500; }

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

.layout { display: block; }
nav.toc { display: none; }

@media (min-width: 1040px) {
  .layout { display: grid; grid-template-columns: 172px minmax(0, 1fr); gap: 56px; align-items: start; }
  nav.toc { display: block; position: sticky; top: 28px; font-size: 13px; line-height: 1.45; }
  nav.toc ol {
    list-style: none; margin: 0; padding: 0 0 0 16px;
    display: flex; flex-direction: column; gap: 11px;
    border-left: 1px solid var(--rule);
  }
  nav.toc a { color: var(--muted); text-decoration: none; display: block; }
  nav.toc a:hover, nav.toc a:focus-visible { color: var(--accent); }
}

main { min-width: 0; }
section { padding-top: 8px; margin-bottom: 56px; scroll-margin-top: 24px; }

h2 {
  font-family: var(--f-display); font-size: 1.55rem; font-weight: 600;
  letter-spacing: -.01em; text-wrap: balance; margin: 0 0 6px;
  padding-bottom: 10px; border-bottom: 1px solid var(--rule);
}
.sub { color: var(--muted); font-size: .93rem; margin: 0 0 26px; max-width: var(--measure); }

h3 {
  font-family: var(--f-body); font-size: .82rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
  margin: 36px 0 14px;
}
h4 { font-family: var(--f-body); font-size: 1.02rem; font-weight: 600; margin: 0 0 7px; text-wrap: balance; }

p { max-width: var(--measure); margin: 0 0 16px; }
main a { color: var(--accent); }
main ul, main ol { max-width: var(--measure); padding-left: 20px; }
main li { margin-bottom: 8px; }

code, .mono { font-family: var(--f-mono); font-size: .855em; font-variant-ligatures: none; }
code { background: var(--surface-2); padding: .1em .38em; border-radius: 2px; }
.num { font-variant-numeric: tabular-nums; }

/* ---------- tiles ---------- */

.tiles {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(178px, 1fr));
  gap: 1px; background: var(--rule); border: 1px solid var(--rule); margin-bottom: 44px;
}
.tile { background: var(--surface); padding: 20px 18px 18px; display: flex; flex-direction: column; gap: 7px; }
.tile .figure {
  font-family: var(--f-display); font-size: 2.15rem; line-height: 1;
  font-variant-numeric: tabular-nums; letter-spacing: -.02em;
}
.tile .label { font-size: .82rem; color: var(--ink-2); line-height: 1.4; }
.tile .foot {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .09em;
  text-transform: uppercase; color: var(--muted); margin-top: auto; padding-top: 8px;
}
.tile.is-critical .figure { color: var(--critical); }
.tile.is-live .figure { color: var(--accent); }
.tile.is-null .figure { color: var(--muted); }
.tile.is-major .figure { color: var(--major); }

/* ---------- callout ---------- */

.callout {
  background: var(--surface); border: 1px solid var(--rule);
  border-top: 2px solid var(--accent); padding: 22px 24px; margin-bottom: 26px;
}
.callout h3 { margin-top: 0; }
.callout > :last-child { margin-bottom: 0; }
.callout ul { margin: 0 0 16px; }
.callout.is-critical { border-top-color: var(--critical); }
.callout.is-major    { border-top-color: var(--major); }

/* ---------- tables ---------- */

.tw { overflow-x: auto; border: 1px solid var(--rule); background: var(--surface); margin-bottom: 8px; }
table { border-collapse: collapse; width: 100%; font-size: .89rem; min-width: 540px; }
thead th {
  text-align: left; font-family: var(--f-mono); font-size: 10.5px;
  letter-spacing: .09em; text-transform: uppercase; color: var(--muted);
  font-weight: 500; padding: 11px 14px; border-bottom: 1px solid var(--rule);
  background: var(--surface-2); white-space: nowrap;
}
tbody td { padding: 10px 14px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.c, th.c { text-align: center; }
caption { caption-side: bottom; text-align: left; font-size: .8rem; color: var(--muted); padding: 10px 0 0; }

/* magnitude bar inside a table cell */
.bar { display: block; height: 5px; background: var(--accent); opacity: .58; min-width: 1px; }
.bar.is-ref { background: var(--muted); opacity: .38; }
td.barcell { width: 138px; padding-top: 16px; }

/* presence dot for matrix tables */
.dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
}
.dot.is-off { background: transparent; box-shadow: inset 0 0 0 1px var(--rule); }

/* ---------- chips ---------- */

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .06em;
  text-transform: uppercase; white-space: nowrap; padding: 3px 8px;
  border: 1px solid currentColor; border-radius: 2px;
}
.chip::before { content: ""; width: 5px; height: 5px; background: currentColor; border-radius: 50%; flex: none; }
.chip.critical { color: var(--critical); }
.chip.major    { color: var(--major); }
.chip.parity   { color: var(--muted); }
.chip.ahead    { color: var(--good); }
.chip.scope    { color: var(--muted); opacity: .75; }
.chip.reception { color: var(--role-reception); }
.chip.nurse     { color: var(--role-nurse); }
.chip.doctor    { color: var(--role-doctor); }
.chip.terminal  { color: var(--role-terminal); }

/* ---------- struck-through tag list ---------- */

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.tag {
  font-family: var(--f-mono); font-size: 11.5px; color: var(--muted);
  background: var(--surface); border: 1px solid var(--rule);
  padding: 4px 8px; border-radius: 2px;
}
.tag.is-struck {
  text-decoration: line-through;
  text-decoration-color: color-mix(in srgb, var(--critical) 55%, transparent);
}

/* ---------- ranked findings ---------- */

.findings { display: flex; flex-direction: column; }
.finding {
  display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 0 18px;
  padding: 22px 0; border-top: 1px solid var(--rule-soft);
}
.finding:first-child { border-top: 1px solid var(--rule); }
.rank {
  font-family: var(--f-mono); font-size: 12px; color: var(--accent);
  padding-top: 3px; font-variant-numeric: tabular-nums;
}
.finding p { margin: 0; font-size: .945rem; color: var(--ink-2); }

/* ---------- gap / item register ---------- */

.register { border-top: 1px solid var(--rule); }
.entry {
  display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 4px 18px;
  padding: 20px 0; border-bottom: 1px solid var(--rule-soft);
}
.entry .gid {
  font-family: var(--f-mono); font-size: 12px; font-weight: 600;
  color: var(--ink-2); padding-top: 2px;
}
.entry .head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; margin-bottom: 7px; }
.entry h4 { margin: 0; }
.entry p { margin: 0 0 10px; font-size: .93rem; color: var(--ink-2); }
.entry p:last-child { margin-bottom: 0; }
.entry .aside {
  font-size: .875rem; color: var(--muted);
  border-left: 2px solid var(--rule); padding-left: 13px;
}

/* ---------- split list ---------- */

.split-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule);
}
.split-list li {
  background: var(--surface); padding: 15px 18px;
  display: grid; grid-template-columns: minmax(0, 210px) minmax(0, 1fr);
  gap: 4px 20px; font-size: .92rem;
}
.split-list span { color: var(--ink-2); }
@media (max-width: 620px) { .split-list li { grid-template-columns: 1fr; } }

/* ---------- numbered questions ---------- */

.questions {
  list-style: none; margin: 0; padding: 0; counter-reset: q;
  border-top: 1px solid var(--rule);
}
.questions li {
  counter-increment: q; display: grid; grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--rule-soft); font-size: .95rem;
}
.questions li::before {
  content: "Q" counter(q); font-family: var(--f-mono); font-size: 11.5px;
  color: var(--accent); padding-top: 3px;
}
.questions em { font-style: normal; color: var(--muted); display: block; font-size: .87rem; margin-top: 3px; }

/* ---------- numbered steps (procedures, not questions) ---------- */

.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; border-top: 1px solid var(--rule); }
.steps li {
  counter-increment: s; display: grid; grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--rule-soft); font-size: .95rem;
}
.steps li::before {
  content: counter(s); font-family: var(--f-mono); font-size: 11.5px;
  color: var(--accent); padding-top: 3px; font-variant-numeric: tabular-nums;
}
.steps em { font-style: normal; color: var(--muted); display: block; font-size: .87rem; margin-top: 3px; }

/* ---------- figures & diagrams ---------- */

.figure-block { margin: 0 0 30px; }
.figure-block .frame {
  border: 1px solid var(--rule); background: var(--surface);
  overflow-x: auto; padding: 26px 22px;
}
.figure-block svg { display: block; min-width: 720px; width: 100%; height: auto; }
/* Wide diagrams must scroll inside .frame rather than scale down into illegibility.
   Keep min-width close to the viewBox width so label type stays near its authored size. */
.figure-block.w-md svg { min-width: 900px; }
.figure-block.w-lg svg { min-width: 1180px; }
.figcap { font-size: .82rem; color: var(--muted); margin: 10px 0 0; max-width: var(--measure); }

.legend {
  display: flex; flex-wrap: wrap; gap: 8px 20px;
  margin: 0 0 16px; padding: 0; list-style: none;
  font-family: var(--f-mono); font-size: 11px;
  letter-spacing: .05em; text-transform: uppercase; color: var(--muted);
}
.legend li { display: flex; align-items: center; gap: 7px; margin: 0; }
.legend .swatch { width: 10px; height: 10px; border-radius: 2px; flex: none; }

/* ---------- horizontal range chart ---------- */

.rangechart { border: 1px solid var(--rule); background: var(--surface); padding: 20px 22px 14px; }
.rangechart .row {
  display: grid; grid-template-columns: minmax(120px, 190px) minmax(0, 1fr) 62px;
  align-items: center; gap: 14px; padding: 6px 0;
  font-size: .87rem;
}
.rangechart .rname { color: var(--ink-2); }
.rangechart .track { position: relative; height: 16px; }
.rangechart .track::before {
  content: ""; position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; background: var(--rule-soft);
}
.rangechart .span {
  position: absolute; top: 50%; transform: translateY(-50%);
  height: 8px; border-radius: 4px; background: var(--accent); opacity: .72;
}
.rangechart .rval {
  font-family: var(--f-mono); font-size: 11.5px; color: var(--muted);
  font-variant-numeric: tabular-nums; text-align: right;
}
.rangechart .axis {
  display: flex; justify-content: space-between;
  font-family: var(--f-mono); font-size: 10.5px; color: var(--muted);
  border-top: 1px solid var(--rule-soft); margin-top: 10px; padding-top: 7px;
}
.rangechart .row.is-total { border-top: 1px solid var(--rule); margin-top: 8px; padding-top: 12px; }
.rangechart .row.is-total .rname { color: var(--ink); font-weight: 600; }
.rangechart .row.is-total .span { opacity: 1; }

/* ---------- small column chart (change over time) ---------- */

.chart-pair { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 12px; }

.colchart { border: 1px solid var(--rule); background: var(--surface); padding: 18px 20px 14px; }
.colchart .ct {
  font-family: var(--f-body); font-size: .9rem; font-weight: 600;
  margin: 0 0 2px; color: var(--ink);
}
.colchart .cs {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 18px;
}
/* content-box so `height` is the bar area only and padding-top is pure headroom
   for the floating value labels on the tallest column. */
.colchart .plot {
  display: flex; align-items: flex-end; gap: 10px;
  box-sizing: content-box; height: 116px; padding-top: 20px;
  border-bottom: 1px solid var(--rule);
}
.colchart .col { flex: 1; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; }
/* The fill's percentage height must be measured against the full column, so the
   value label is taken out of flow — otherwise it steals height from the tallest
   bar and the scale stops being linear. */
.colchart .fill {
  position: relative; width: 100%;
  background: var(--accent); opacity: .72;
  border-radius: 4px 4px 0 0; min-height: 2px;
}
.colchart .v {
  position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
  margin-bottom: 5px; white-space: nowrap;
  font-family: var(--f-mono); font-size: 10.5px; color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.colchart .col.is-peak .fill { opacity: 1; }
.colchart .xaxis { display: flex; gap: 10px; padding-top: 7px; }
.colchart .xaxis span {
  flex: 1; text-align: center; font-family: var(--f-mono);
  font-size: 10.5px; color: var(--muted); font-variant-numeric: tabular-nums;
}

/* ---------- phase ladder ---------- */

.ladder { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.ladder > li {
  display: grid; grid-template-columns: 88px minmax(0, 1fr);
  gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--rule-soft);
}
.ladder .phase {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); padding-top: 3px;
}
.ladder .items { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 8px; }
.ladder .item {
  font-family: var(--f-mono); font-size: 11.5px;
  border: 1px solid var(--rule); background: var(--surface-2);
  padding: 4px 9px; border-radius: 2px; color: var(--ink-2);
}
.ladder .why { font-size: .88rem; color: var(--muted); margin: 0; }

/* ---------- index cards ---------- */

.doc-index { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.doc-index li { background: var(--surface); }
.doc-index a {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 20px;
  padding: 24px 26px; text-decoration: none; color: inherit;
}
.doc-index a:hover, .doc-index a:focus-visible { background: var(--surface-2); }
.doc-index .t { font-family: var(--f-display); font-size: 1.3rem; font-weight: 600; letter-spacing: -.01em; }
.doc-index .d { grid-column: 1 / -1; color: var(--ink-2); font-size: .93rem; max-width: var(--measure); }
.doc-index .k {
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted); white-space: nowrap; padding-top: 6px;
}

/* ---------- footer ---------- */

footer {
  margin-top: 72px; padding-top: 22px; border-top: 2px solid var(--ink);
  font-size: .85rem; color: var(--muted);
}
footer p { max-width: var(--measure); }

/* ---------- a11y & print ---------- */

:where(a, [tabindex], button):focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

@media print {
  body { background: #fff; color: #000; }
  .docnav, nav.toc { display: none; }
  .layout { display: block; }
  .tw, .figure-block .frame { overflow: visible; border-color: #bbb; }
  section { break-inside: avoid-page; }
  a { color: #000; text-decoration: underline; }
}