/* UCD Neurology: clinical, editorial, no external requests */
:root {
  --ink: #18202b;
  --text: #2b3442;
  --muted: #5b6577;
  --navy: #14284b;
  --navy-2: #1f3d6e;
  --line: #dde2ea;
  --tint: #f4f6f9;
  --todo-bg: #fff7d6;
  --todo-line: #e3c45a;
  --serif: Charter, "Bitstream Charter", "Iowan Old Style", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --measure: 42rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: #fff; color: var(--text); font: 1.0625rem/1.7 var(--sans); }
img, svg { max-width: 100%; }
a { color: var(--navy-2); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--navy); text-decoration-thickness: 2px; }
a:focus-visible, .btn:focus-visible { outline: 3px solid #7aa2e3; outline-offset: 2px; border-radius: 3px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: 0.5rem 1rem; z-index: 10; }
.skip:focus { left: 1rem; }
.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1rem; }
.narrow { max-width: calc(var(--measure) + 2rem); }

/* header */
header.site { border-bottom: 1px solid var(--line); background: #fff; }
.bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1.5rem; min-height: 4rem; }
.wordmark { display: inline-flex; align-items: center; text-decoration: none; }
.wordmark img { display: block; height: 34px; width: auto; }
.fbrand img { display: block; height: 28px; width: auto; }
.nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; font-size: 0.95rem; }
.nav a { color: var(--text); text-decoration: none; padding: 0.25rem 0; }
.nav a:hover { color: var(--navy); text-decoration: underline; }

/* type */
h1, h2, h3, h4 { font-family: var(--serif); color: var(--ink); line-height: 1.25; font-weight: 600; }
h1 { font-size: clamp(1.9rem, 1.4rem + 2.2vw, 2.6rem); margin: 0.4rem 0 0.75rem; letter-spacing: -0.01em; }
h2 { font-size: 1.55rem; margin: 2.6rem 0 0.75rem; }
h3 { font-size: 1.2rem; margin: 1.8rem 0 0.5rem; }
p, ul, ol { margin: 0 0 1.05rem; }
li { margin: 0.3rem 0; }
strong { color: var(--ink); }
code { font-size: 0.9em; background: var(--tint); padding: 0.1em 0.35em; border-radius: 4px; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2rem 0; }

/* breadcrumbs */
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem; padding: 0; margin: 1.25rem 0 0; font-size: 0.875rem; color: var(--muted); }
.crumbs li { margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 0.35rem; color: #a3abb8; }
.crumbs a { color: var(--muted); }

/* article */
.ahead { margin-bottom: 1.25rem; }
.byline { color: var(--muted); font-size: 0.9rem; margin: 0; }
.lede > p:first-child { font-size: 1.15rem; line-height: 1.65; color: var(--ink); }
.facts { border: 1px solid var(--line); background: var(--tint); border-radius: 10px; padding: 1rem 1.25rem 0.4rem; margin: 1.5rem 0 0.5rem; }
.facts-h { font: 600 0.8rem/1 var(--sans); letter-spacing: 0.08em; text-transform: uppercase; color: var(--navy); margin: 0 0 0.6rem; }
.facts ul { padding-left: 1.1rem; margin-bottom: 0.6rem; }
.srcnote { font-size: 0.82rem; font-style: italic; color: var(--muted); line-height: 1.5; margin-top: -0.2rem; }
.srcnote a { color: var(--muted); }
.table { overflow-x: auto; margin: 1.25rem 0 1.5rem; border: 1px solid var(--line); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; line-height: 1.5; }
th, td { text-align: left; vertical-align: top; padding: 0.65rem 0.85rem; border-bottom: 1px solid var(--line); }
thead th { background: var(--tint); color: var(--ink); font-weight: 600; }
tbody tr:last-child td { border-bottom: 0; }
.faq h3 { font-family: var(--sans); font-size: 1.05rem; font-weight: 650; margin-top: 1.5rem; }
.sources { font-size: 0.9rem; color: var(--muted); border-top: 1px solid var(--line); margin-top: 2.5rem; }
.sources h2 { font-size: 1.15rem; }
.sources ul { padding-left: 1.1rem; }
.related { border-top: 1px solid var(--line); margin: 2.5rem 0 3rem; padding-top: 0.5rem; }
.related h2 { font-size: 1.15rem; margin-top: 1rem; }
.related ul { list-style: none; padding: 0; display: grid; gap: 0.5rem; }

/* placeholders (local review only; release build refuses them) */
.todo { background: var(--todo-bg); border: 1px dashed var(--todo-line); border-radius: 4px; padding: 0.05rem 0.35rem; font-size: 0.92em; color: #5a4a10; }

/* homepage */
.hero { background: linear-gradient(180deg, #f6f8fb 0%, #fff 100%); border-bottom: 1px solid var(--line); padding: 3rem 0 2.75rem; }
.kicker { font: 600 0.8rem/1 var(--sans); letter-spacing: 0.1em; text-transform: uppercase; color: var(--navy-2); margin: 0 0 0.75rem; }
.hero h1 { max-width: 46rem; }
.intro { font-size: 1.15rem; max-width: 44rem; color: var(--text); }
.cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }
.btn { display: inline-block; background: var(--navy); color: #fff; text-decoration: none; padding: 0.7rem 1.15rem; border-radius: 8px; font-weight: 600; font-size: 0.95rem; border: 1px solid var(--navy); }
.btn:hover { background: var(--navy-2); color: #fff; text-decoration: none; }
.btn.ghost { background: #fff; color: var(--navy); }
.btn.ghost:hover { background: var(--tint); color: var(--navy); }
.conditions h2 { margin-top: 2.5rem; }
.group h3 { font-family: var(--sans); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 650; margin: 2rem 0 0.75rem; }
.cards { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.85rem; grid-template-columns: 1fr; }
.cards li { margin: 0; }
.cards a { display: block; height: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.15rem; text-decoration: none; background: #fff; transition: border-color 0.15s, box-shadow 0.15s; }
.cards a:hover { border-color: #b7c3d6; box-shadow: 0 2px 10px rgba(20, 40, 75, 0.07); }
.ct { display: block; font: 600 1.1rem/1.3 var(--serif); color: var(--ink); margin-bottom: 0.35rem; }
.cd { display: block; font-size: 0.92rem; line-height: 1.5; color: var(--muted); }
.nicc-band { margin: 3rem 0 0; padding: 1.5rem; border: 1px solid var(--line); border-radius: 14px; background: var(--tint); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; }
.nicc-band h2 { margin: 0 0 0.4rem; font-size: 1.35rem; }
.nicc-band p { margin: 0; max-width: 40rem; }
.about { max-width: var(--measure); margin-bottom: 3rem; }
.notfound { padding: 3rem 1rem; }

/* footer */
footer.site { border-top: 1px solid var(--line); background: #fafbfc; color: var(--muted); font-size: 0.9rem; padding: 2rem 0 2.5rem; }
footer.site p { max-width: 44rem; }
.fbrand { font: 600 1.05rem/1 var(--serif); color: var(--navy); }
.fsmall { font-size: 0.78rem; margin: 1.25rem 0 0; }
footer.site a { color: var(--muted); }

@media (min-width: 40rem) {
  .cards { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 64rem) {
  .cards { grid-template-columns: repeat(3, 1fr); }
  .hero { padding: 4.5rem 0 4rem; }
}
@media print {
  header.site, footer.site, .related, .crumbs { display: none; }
  a { color: inherit; }
}

/* photos */
.lead-img { margin: 0.25rem 0 1.5rem; }
.lead-img img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 12px; background: var(--tint); }
.lead-img figcaption { font-size: 0.75rem; color: var(--muted); margin-top: 0.4rem; }
.lead-img figcaption a { color: var(--muted); }
.cards .thumb { display: block; width: calc(100% + 2.3rem); max-width: none; height: auto; aspect-ratio: 16 / 9; object-fit: cover; margin: -1rem -1.15rem 0.85rem; border-radius: 11px 11px 0 0; background: var(--tint); }
.hero-grid { display: grid; gap: 1.5rem; align-items: center; }
.hero .lead-img { margin: 0; }
@media (min-width: 64rem) {
  .hero-grid { grid-template-columns: 1.1fr 1fr; gap: 3rem; }
}