/* Laurie M. Bridges — site styles
   Colors meet WCAG AA contrast (most pairs AAA) in light and dark modes. */

:root {
  --bg: #ffffff;
  --surface: #f6f8fb;
  --ink: #1b2430;
  --muted: #4f5b69;
  --line: #dde3ea;
  --accent: #1f4e8c;        /* library navy: 8.2:1 on white */
  --accent-soft: #e8eef7;
  --tag-bg: #eef1f5;
  --tag-ink: #2f3d4f;
  --keynote-bg: #1f4e8c;
  --keynote-ink: #ffffff;
  --focus: #c2410c;
  --max: 46rem;
  --sans: "Source Sans 3", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111821;
    --surface: #18212c;
    --ink: #e8edf3;
    --muted: #aeb9c6;
    --line: #2a3644;
    --accent: #8fb8ee;
    --accent-soft: #1c2b3d;
    --tag-bg: #223041;
    --tag-ink: #d5dfeb;
    --keynote-bg: #8fb8ee;
    --keynote-ink: #0e1a2a;
    --focus: #f59e62;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.125rem;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }

a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: 1rem; top: -3rem;
  background: var(--ink); color: var(--bg);
  padding: 0.5rem 0.9rem; z-index: 10; border-radius: 4px;
}
.skip-link:focus { top: 1rem; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1rem; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.site-header .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0.5rem 1.5rem; padding-top: 1rem; padding-bottom: 1rem;
}
.site-name {
  font-family: var(--sans); font-weight: 700; font-size: 1.2rem;
  color: var(--ink); text-decoration: none;
}
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin: 0; padding: 0; }
.site-nav a {
  color: var(--muted); text-decoration: none; font-size: 1rem; font-weight: 600;
  padding: 0.25rem 0; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }

/* Page heading */
main { padding: 3rem 0 4rem; }
h1, h2, h3 { font-family: var(--sans); line-height: 1.2; }

h1 { font-size: clamp(2rem, 5vw, 2.6rem); font-weight: 700; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
.lede { color: var(--muted); font-size: 1.2rem; margin: 0 0 2.5rem; }
h2 { font-size: 1.4rem; font-weight: 700; margin: 2.75rem 0 1rem; }

/* Year dividers */
.year {
  display: flex; align-items: center; gap: 1rem;
  font-family: var(--sans); font-size: 1.1rem; font-weight: 700; color: var(--ink);
  margin: 2.5rem 0 1rem;
}
.year::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* Home */
.intro { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 40rem) { .intro { grid-template-columns: 11rem 1fr; } }
.headshot {
  width: 11rem; height: 11rem; object-fit: cover; object-position: 50% 30%; border-radius: 50%;
  border: 1px solid var(--line); background: var(--accent-soft);
}
.roles { list-style: none; margin: 0 0 0.5rem; padding: 0; font-size: 1.15rem; }
.roles li + li { margin-top: 0.15rem; }
.org { color: var(--muted); margin: 0; }


/* About */
.positions { list-style: none; padding: 0; margin: 0 0 0.9rem; }
.positions li { margin-bottom: 0.35rem; }
.positions .dates { color: var(--muted); white-space: nowrap; }
.edu { margin: 0; }
.edu dt { font-weight: 700; margin-top: 1rem; }
.edu dd { margin: 0; color: var(--muted); }
.involve { padding-left: 1.2rem; }
.involve li { margin-bottom: 0.5rem; }
.involve .dates { color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding: 2rem 0; font-size: 0.95rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 0.75rem 1.5rem; justify-content: space-between; }
.site-footer ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; margin: 0; padding: 0; }
.site-footer p { margin: 0; }

/* Home hero: spacious, minimal */
.hero {
  min-height: 58vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 2rem 0;
}
.hero .name {
  font-size: clamp(2.75rem, 8vw, 4.5rem);
  font-weight: 700; letter-spacing: -0.02em; line-height: 1.05;
  margin: 0 0 1.5rem;
}
.hero .tagline { font-size: clamp(1.1rem, 2.4vw, 1.35rem); margin: 0 0 0.4rem; color: var(--ink); }
.hero .org { font-size: 1.1rem; }
.hero-links {
  list-style: none; padding: 0; margin: 2.75rem 0 0;
  display: flex; flex-wrap: wrap; gap: 0.4rem 1.5rem; font-size: 1.05rem;
}
.hero-links a { font-weight: 600; }

/* Header and footer: white, blending into the page */
.site-header, .site-footer { background: var(--bg); }

/* ---------- Card catalog cards ---------- */
:root {
  --card: #fbf8f1;
  --card-edge: #e3dccd;
  --card-ink: #23262b;
  --card-muted: #4a4d52;
  --card-red: #b3261e;
  --type: "Courier Prime", "Courier New", Courier, monospace;
}
@media (prefers-color-scheme: dark) {
  :root { --card: #f3eee2; --card-edge: #d8cfbc; }
}
.cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.25rem; }
.card {
  position: relative;
  display: grid; grid-template-columns: 5rem 1fr; gap: 0 1.1rem;
  padding: 1.5rem 1.75rem 2.6rem 1.25rem;
  background: var(--card); color: var(--card-ink);
  border: 1px solid var(--card-edge); border-radius: 3px;
  box-shadow: 0 1px 0 #ebe4d5, 0 8px 16px -10px rgba(27, 36, 48, .35);
  font-family: var(--type); font-size: 1rem; line-height: 1.5;
}
.card::after { /* the punched rod hole */
  content: ""; position: absolute; left: 50%; bottom: .75rem;
  width: .8rem; height: .8rem; margin-left: -.4rem; border-radius: 50%;
  background: var(--bg); box-shadow: inset 0 1px 2px rgba(0, 0, 0, .3);
}
.card-call {
  font-family: var(--type); font-weight: 700; font-size: .85rem;
  letter-spacing: .06em; text-transform: uppercase; line-height: 1.6;
  border-right: 1.5px solid var(--card-red); padding-right: .5rem;
}
.card-call abbr { text-decoration: none; }
.card-body { min-width: 0; }
.card-body a { color: #1f4e8c; }
.card-head {
  font-family: var(--type); font-weight: 700; font-size: 1.05rem; line-height: 1.4;
  color: var(--card-ink); margin: 0 0 .75rem; padding-bottom: .6rem;
  border-bottom: 1.5px solid var(--card-red);
}
.card-head a { color: var(--card-ink); text-decoration-color: rgba(35, 38, 43, .35); }
.card-head a:hover { color: #1f4e8c; }
.card p { margin: 0 0 .2rem; color: var(--card-muted); overflow-wrap: anywhere; }
.card .with { font-style: italic; }
.card-doi { font-size: .9rem; }
.card-note { margin-top: .6rem !important; }
.card-subjects { margin-top: .9rem !important; font-size: .9rem; color: var(--card-ink) !important; }
.card-tags { list-style: none; margin: .8rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem; }
.card-tags li { font-weight: 700; font-size: .82rem; letter-spacing: .05em; text-transform: uppercase; }
.card-tags li + li::before { content: "— "; }
.card-tags li.keynote { color: var(--card-red); }
@media (max-width: 34rem) {
  .card { grid-template-columns: 1fr; padding: 1.25rem 1.25rem 2.5rem; }
  .card-call { border-right: 0; padding: 0; margin-bottom: .6rem; }
  .card-call br { display: none; }
}

/* About: author card with a clipped-on photo */
.author-card { grid-template-columns: 5rem 1fr 8rem; margin-bottom: 1.5rem; }
.card-photo {
  width: 7.5rem; height: 9.4rem; object-fit: cover; object-position: 50% 25%;
  border: 6px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.2); transform: rotate(2deg);
  justify-self: end;
}
@media (max-width: 40rem) {
  .author-card { grid-template-columns: 1fr; }
  .card-photo { grid-row: 1; justify-self: start; margin-bottom: 1rem; }
}
.author-card .positions li { color: var(--card-ink); }

/* Plain row of profile links (About page) — same style as the homepage links */
.link-row { list-style: none; padding: 0; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: 0.4rem 1.5rem; font-size: 1.05rem; }
.link-row a { font-weight: 600; }
.author-card { grid-template-columns: 2.5rem 1fr 8rem; }
@media (max-width: 40rem) { .author-card { grid-template-columns: 1fr; } .author-card .card-call { display: none; } }