/*
  McIndi Solutions — briefing pages
  Long-form incident analysis. Loaded only by templates/briefing.html.
  Every class is namespaced .br-* so nothing here collides with styles.css.
  Light-only, matching the rest of the site. No webfonts.
*/

.br {
  --br-ink: var(--txt, #0f172a);
  --br-ink-mid: #475569;          /* slate-600 */
  --br-ink-soft: var(--muted, #64748b);
  --br-surface: var(--card, #ffffff);
  --br-sunk: #f1f5f9;             /* slate-100 */
  --br-rule: #e2e8f0;             /* slate-200 */
  --br-rule-strong: #cbd5e1;      /* slate-300 */

  --br-brand: var(--brand, #274472);
  --br-control: #0e7490;          /* cyan-700, readable on white */
  --br-control-soft: #ecfeff;     /* cyan-50 */
  --br-control-ink: #155e75;      /* cyan-800 */
  --br-incident: #b45309;         /* amber-700 */
  --br-incident-soft: #fffbeb;    /* amber-50 */
  --br-incident-ink: #92400e;     /* amber-800 */

  --br-stop: #0e7490;
  --br-contain: #a16207;          /* yellow-700 */
  --br-record: #475569;
  --br-none: #94a3b8;             /* slate-400 */

  --br-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, 'DejaVu Sans Mono', monospace;
  --br-serif: Georgia, Cambria, 'Times New Roman', Times, serif;
  --br-measure: 68ch;
}

/* ---------- shared bits ---------- */
.br-label {
  font-family: var(--br-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--br-control);
}

.br h2,
.br h3 {
  text-wrap: balance;
  color: var(--br-ink);
}

.br code,
.br .br-k {
  font-family: var(--br-mono);
  font-size: .86em;
  background: var(--br-sunk);
  border: 1px solid var(--br-rule);
  border-radius: 4px;
  padding: .08em .34em;
  word-break: break-word;
}

/* ---------- run sheet under the hero ---------- */
.br-runsheet {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 2rem;
  font-family: var(--br-mono);
  font-size: .76rem;
  color: #94a3b8;
  margin-top: .4rem;
}
.br-runsheet span { white-space: nowrap; }
.br-runsheet b { color: #cbd5e1; font-weight: 500; }

/* ---------- intro ---------- */
.br-intro {
  display: grid;
  gap: .75rem;
  max-width: var(--br-measure);
}
.br-intro h2 {
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  line-height: 1.2;
  margin: 0;
}
.br-intro p { margin: 0; color: var(--br-ink-mid); line-height: 1.7; }

/* ---------- case files ---------- */
.br-cases {
  display: grid;
  gap: 2rem;
}

.br-case {
  background: var(--br-surface);
  border: 1px solid var(--br-rule);
  border-top: 3px solid var(--br-incident);
  border-radius: var(--radius-md, 12px);
  box-shadow: var(--shadow, 0 10px 30px rgba(15, 23, 42, .08));
  overflow: hidden;
}

.br-case-head {
  padding: 1.5rem clamp(1.1rem, 3vw, 2rem) 1.25rem;
  display: grid;
  gap: .8rem;
  border-bottom: 1px solid var(--br-rule);
}
.br-case-title {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: .4rem .9rem;
}
.br-case-no {
  font-family: var(--br-mono);
  font-size: .78rem;
  font-weight: 700;
  color: var(--br-incident);
  letter-spacing: .08em;
}
.br-case-title h3 {
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  line-height: 1.25;
  margin: 0;
}

.br-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: .8rem 1.5rem;
  font-family: var(--br-mono);
  font-size: .74rem;
  line-height: 1.45;
  margin: 0;
}
.br-meta > div { display: grid; gap: .15rem; }
.br-meta dt {
  color: var(--br-ink-soft);
  letter-spacing: .09em;
  text-transform: uppercase;
  font-size: .64rem;
  font-weight: 700;
}
.br-meta dd { margin: 0; color: var(--br-ink); font-weight: 500; }

.br-case-body {
  padding: 1.5rem clamp(1.1rem, 3vw, 2rem) 1.75rem;
  display: grid;
  gap: 1.5rem;
}
.br-case-body > p {
  margin: 0;
  max-width: var(--br-measure);
  color: var(--br-ink-mid);
  line-height: 1.7;
}

/* ---------- chain of events ---------- */
.br-chain-label {
  font-family: var(--br-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--br-ink-soft);
}
ol.br-chain {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: br-step;
}
ol.br-chain > li {
  counter-increment: br-step;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: .1rem 1rem;
  padding: 0 0 1.1rem;
  position: relative;
}
ol.br-chain > li::before {
  content: counter(br-step);
  font-family: var(--br-mono);
  font-size: .72rem;
  font-weight: 700;
  color: var(--br-ink-soft);
  background: var(--br-sunk);
  border: 1px solid var(--br-rule-strong);
  border-radius: 50%;
  width: 1.7rem;
  height: 1.7rem;
  display: grid;
  place-items: center;
  grid-row: 1 / span 2;
  z-index: 1;
}
ol.br-chain > li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: .85rem;
  top: 1.75rem;
  bottom: 0;
  width: 1px;
  background: var(--br-rule-strong);
}
ol.br-chain > li > .br-step {
  grid-column: 2;
  max-width: var(--br-measure);
  line-height: 1.7;
  color: var(--br-ink-mid);
}
ol.br-chain > li.br-terminal::before {
  background: var(--br-incident-soft);
  border-color: var(--br-incident);
  color: var(--br-incident-ink);
}
ol.br-chain > li.br-terminal > .br-step {
  font-weight: 600;
  color: var(--br-incident-ink);
}

.br-intercept {
  grid-column: 2;
  margin-top: .65rem;
  background: var(--br-control-soft);
  border: 1px solid #a5f3fc;
  border-left: 3px solid var(--br-control);
  border-radius: 0 var(--radius-sm, 10px) var(--radius-sm, 10px) 0;
  padding: .8rem 1rem;
  display: grid;
  gap: .35rem;
}
.br-intercept .br-who {
  font-family: var(--br-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--br-control-ink);
  text-transform: uppercase;
}
.br-intercept p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--br-ink);
  max-width: 64ch;
}
.br-intercept code { background: #ffffff; border-color: #a5f3fc; }

/* ---------- quotes and sources ---------- */
blockquote.br-quote {
  margin: 0;
  padding: .9rem 0 .9rem 1.2rem;
  border-left: 3px solid var(--br-rule-strong);
  font-family: var(--br-serif);
  font-size: 1.1rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--br-ink);
  max-width: 58ch;
}
blockquote.br-quote footer {
  margin-top: .55rem;
  font-family: var(--br-mono);
  font-style: normal;
  font-size: .7rem;
  color: var(--br-ink-soft);
  letter-spacing: .04em;
}

.br-sources {
  font-family: var(--br-mono);
  font-size: .72rem;
  line-height: 1.7;
  color: var(--br-ink-soft);
  padding-top: .5rem;
  border-top: 1px dashed var(--br-rule-strong);
  margin: 0;
}
.br-sources a { color: var(--br-control-ink); text-underline-offset: .18em; }
.br a:focus-visible { outline: 2px solid var(--br-control); outline-offset: 3px; border-radius: 3px; }

/* ---------- coverage matrix ---------- */
.br-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.25rem;
  font-size: .85rem;
  color: var(--br-ink-mid);
  align-items: center;
}
.br-legend > span { display: inline-flex; align-items: center; gap: .45rem; }

.br-scroller {
  overflow-x: auto;
  border: 1px solid var(--br-rule);
  border-radius: var(--radius-md, 12px);
  background: var(--br-surface);
  box-shadow: var(--shadow, 0 10px 30px rgba(15, 23, 42, .08));
}
table.br-matrix {
  border-collapse: collapse;
  width: 100%;
  min-width: 46rem;
  font-size: .85rem;
}
table.br-matrix th,
table.br-matrix td {
  text-align: left;
  padding: .75rem .9rem;
  border-bottom: 1px solid var(--br-rule);
  vertical-align: middle;
}
table.br-matrix thead th {
  font-family: var(--br-mono);
  font-size: .66rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--br-ink-soft);
  font-weight: 700;
  background: var(--br-sunk);
}
table.br-matrix tbody th {
  font-weight: 600;
  color: var(--br-ink);
  width: 15rem;
}
table.br-matrix tbody tr:last-child th,
table.br-matrix tbody tr:last-child td { border-bottom: none; }

.br-chip {
  display: inline-block;
  font-family: var(--br-mono);
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: .22rem .5rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
}
.br-chip.br-stop { color: var(--br-stop); }
.br-chip.br-contain { color: var(--br-contain); }
.br-chip.br-record { color: var(--br-record); }
.br-chip.br-none { color: var(--br-none); }

/* ---------- how to read this ---------- */
.br-notes {
  background: var(--br-sunk);
  border: 1px solid var(--br-rule);
  border-left: 3px solid var(--br-brand);
  border-radius: 0 var(--radius-md, 12px) var(--radius-md, 12px) 0;
  padding: 1.5rem clamp(1.1rem, 3vw, 2rem);
  display: grid;
  gap: 1rem;
}
.br-notes h2 { font-size: 1.35rem; margin: 0; }
.br-notes ol {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: .9rem;
}
.br-notes li {
  max-width: var(--br-measure);
  color: var(--br-ink-mid);
  line-height: 1.7;
}
.br-notes li b { color: var(--br-ink); font-weight: 600; }

/* ---------- closing ---------- */
.br-close {
  border-top: 1px solid var(--br-rule);
  padding-top: 1.5rem;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--br-ink-soft);
  max-width: var(--br-measure);
  display: grid;
  gap: .7rem;
}

@media (max-width: 34rem) {
  ol.br-chain > li { grid-template-columns: 1.7rem 1fr; gap: .1rem .75rem; }
  ol.br-chain > li:not(:last-child)::after { left: .82rem; }
  table.br-matrix tbody th { width: auto; }
}

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

/* ---------- mitigation heading ---------- */
.br-mitigation {
  justify-self: start;   /* grid item: keep the pill to its own width */
  display: inline-block;
  background: var(--br-control);
  color: #ffffff;
  font-family: var(--br-mono);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .25rem .6rem;
  border-radius: 999px;
  margin-bottom: .1rem;
}

/* The control name now sits under the badge, so give it title weight. */
.br-intercept .br-who {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  color: var(--br-control-ink);
  line-height: 1.35;
}

/* ---------- hero without the stat column ---------- */
.br-hero .hero-inner { grid-template-columns: 1fr; }
.br-hero .hero-content { max-width: 54rem; gap: 1.35rem; }
/* .br-hero IS the .hero element, so these must not nest .hero again. */
.br-hero h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); }
.br-hero .hero-content p { max-width: 60ch; font-size: 1.05rem; }

/* ---------- the three causes ---------- */
ol.br-causes {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: br-cause;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.25rem;
}
ol.br-causes > li {
  counter-increment: br-cause;
  background: var(--br-surface);
  border: 1px solid var(--br-rule);
  border-top: 3px solid var(--br-brand);
  border-radius: var(--radius-md, 12px);
  padding: 1.15rem 1.25rem 1.35rem;
  display: grid;
  gap: .5rem;
  align-content: start;
}
ol.br-causes > li::before {
  content: "Cause " counter(br-cause);
  font-family: var(--br-mono);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--br-brand);
}
ol.br-causes h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}
ol.br-causes p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.6;
  color: var(--br-ink-mid);
}

/* ---------- index of the four cases ---------- */
ol.br-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}
ol.br-index > li { margin: 0; }
ol.br-index a {
  display: grid;
  grid-template-columns: 6.5rem minmax(9rem, auto) 1fr auto;
  align-items: baseline;
  gap: .35rem 1.1rem;
  padding: .85rem 1.1rem;
  background: var(--br-surface);
  border: 1px solid var(--br-rule);
  border-left: 3px solid var(--br-incident);
  border-radius: var(--radius-sm, 10px);
  text-decoration: none;
  color: inherit;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
ol.br-index a:hover {
  border-color: var(--br-rule-strong);
  border-left-color: var(--br-incident);
  transform: translateX(2px);
  box-shadow: var(--shadow, 0 10px 30px rgba(15, 23, 42, .08));
}
.br-index-no {
  font-family: var(--br-mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--br-incident);
}
.br-index-name { font-weight: 700; color: var(--br-ink); }
.br-index-what { color: var(--br-ink-mid); }
.br-index-when {
  font-family: var(--br-mono);
  font-size: .72rem;
  color: var(--br-ink-soft);
  white-space: nowrap;
}

@media (max-width: 46rem) {
  ol.br-index a {
    grid-template-columns: 1fr auto;
    gap: .3rem .8rem;
  }
  .br-index-name { grid-column: 1; }
  .br-index-what { grid-column: 1 / -1; font-size: .9rem; }
}

/* anchored cases clear the sticky header */
.br-case { scroll-margin-top: calc(var(--header-height, 64px) + 16px); }