/* Dr Liam Cahill — site styles */
:root {
  --paper: #faf7f2;
  --ink: #21272b;
  --ink-soft: #5a6570;
  --teal: #14666b;
  --teal-dark: #0e4b4f;
  --teal-tint: #e3efef;
  --line: #e2ddd3;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: var(--paper); color: var(--ink); line-height: 1.7; }
h1, h2, h3 { font-family: 'Fraunces', serif; font-weight: 600; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* Header */
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; }
.brand { font-family: 'Fraunces', serif; font-size: 1.2rem; font-weight: 700; }
.brand a { color: var(--ink); text-decoration: none; }
nav a { color: var(--ink-soft); text-decoration: none; margin-left: 26px; font-size: 0.93rem; }
nav a:hover { color: var(--teal); }
nav a.active { color: var(--teal); font-weight: 600; }

/* Hero (home) */
.hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; padding: 76px 0; }
.kicker { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; color: var(--teal); font-weight: 600; margin-bottom: 16px; }
.hero h1 { font-size: 3.3rem; line-height: 1.08; margin-bottom: 22px; font-weight: 700; }
.hero h1 em { font-style: italic; color: var(--teal); }
.hero p { color: var(--ink-soft); font-size: 1.08rem; max-width: 460px; }
.photo {
  aspect-ratio: 4/4.8; border-radius: 10px;
  background: linear-gradient(165deg, #e9e2d5, #d4cbb9);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft); font-size: 0.9rem;
  box-shadow: 14px 14px 0 var(--teal-tint);
  overflow: hidden;
}
.photo img { width: 100%; height: 100%; object-fit: cover; }

/* Page header (inner pages) */
.page-head { padding: 56px 0 8px; }
.page-head h1 { font-size: 2.6rem; font-weight: 700; }
.page-head p.sub { color: var(--ink-soft); max-width: 640px; margin-top: 10px; }

/* Buttons */
.btn {
  display: inline-block; background: var(--teal); color: #fff; padding: 13px 30px;
  border-radius: 6px; text-decoration: none; font-weight: 600; font-size: 0.95rem;
  margin-top: 28px; margin-right: 14px;
}
.btn.ghost { background: transparent; color: var(--teal); border: 1.5px solid var(--teal); }
.btn:hover { opacity: 0.88; }

/* Sections */
section { padding: 64px 0; }
.tint { background: var(--teal-tint); }
h2 { font-size: 2rem; margin-bottom: 10px; }
.rule { width: 56px; height: 3px; background: var(--teal); margin: 14px 0 30px; }
.section-intro { color: var(--ink-soft); max-width: 620px; }

/* Interests grid */
.interests { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--line); margin-top: 36px; }
.interest { padding: 28px 28px 28px 0; border-bottom: 1px solid var(--line); }
.interest:nth-child(odd) { border-right: 1px solid var(--line); padding-right: 28px; }
.interest:nth-child(even) { padding-left: 28px; }
.interest h3 { font-size: 1.15rem; margin-bottom: 8px; }
.interest p { color: var(--ink-soft); font-size: 0.95rem; }
.interest .n { font-family: 'Fraunces', serif; color: var(--teal); font-size: 0.9rem; display: block; margin-bottom: 6px; }

/* Stats */
.stats { display: flex; gap: 70px; flex-wrap: wrap; }
.stat .num { font-family: 'Fraunces', serif; font-size: 3rem; font-weight: 700; color: var(--teal); line-height: 1; }
.stat .label { color: var(--ink-soft); font-size: 0.95rem; margin-top: 6px; }
.stats-note { color: var(--ink-soft); font-size: 0.8rem; margin-top: 22px; }

/* Publications */
.year-heading { font-family: 'Fraunces', serif; font-size: 1.5rem; color: var(--teal); margin: 38px 0 6px; }
.pub { padding: 22px 0; border-bottom: 1px solid var(--line); }
.pub h3 { font-size: 1.08rem; font-weight: 600; margin-bottom: 5px; }
.pub h3 a { color: var(--ink); text-decoration: none; }
.pub h3 a:hover { color: var(--teal); text-decoration: underline; }
.pub .meta { font-size: 0.9rem; color: var(--ink-soft); }
.pub .meta em { font-style: italic; }
.pub .tag {
  display: inline-block; background: var(--teal-tint); color: var(--teal-dark);
  font-size: 0.75rem; font-weight: 600; border-radius: 4px; padding: 2px 8px;
  margin-left: 8px; vertical-align: middle;
}
.pub .doi { font-size: 0.85rem; }
.pub .doi a { color: var(--teal); text-decoration: none; }
.pub .doi a:hover { text-decoration: underline; }
.loading-note { color: var(--ink-soft); font-style: italic; padding: 30px 0; }

/* Prose (about / research) */
.prose { max-width: 720px; }
.prose p { margin-bottom: 18px; }
.prose ul { margin: 0 0 18px 22px; }
.prose li { margin-bottom: 8px; }
.prose a { color: var(--teal); }
.prose h3 { font-size: 1.3rem; margin: 34px 0 10px; }

/* Cards (projects) */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 32px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 26px; }
.card h3 { font-size: 1.12rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 0.95rem; }
.card .status { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--teal); font-weight: 600; display: block; margin-bottom: 10px; }

/* Contact block */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 30px; }
.contact-grid h3 { font-size: 1.15rem; margin-bottom: 12px; }
.contact-grid ul { list-style: none; }
.contact-grid li { margin-bottom: 10px; color: var(--ink-soft); }
.contact-grid a { color: var(--teal); text-decoration: none; }
.contact-grid a:hover { text-decoration: underline; }

/* Footer */
footer { border-top: 1px solid var(--line); padding: 40px 0; margin-top: 40px; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
footer .small { color: var(--ink-soft); font-size: 0.85rem; }
footer a { color: var(--teal); text-decoration: none; margin-left: 18px; font-size: 0.9rem; }
footer a:hover { text-decoration: underline; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding: 48px 0; }
  .hero h1 { font-size: 2.3rem; }
  nav { display: none; }
  .interests, .cards, .contact-grid { grid-template-columns: 1fr; }
  .interest:nth-child(odd) { border-right: none; padding-right: 0; }
  .interest:nth-child(even) { padding-left: 0; }
}