/* ==========================================================
   Graham — Academic Portfolio
   Palette: cool paper, dark ink, single burnt-orange accent
   Type: STIX Two Text (body/display) + IBM Plex Mono (labels)
   ========================================================== */

:root {
  --paper: #F8F8F5;
  --ink: #1F1E1A;
  --muted: #6B695F;
  --line: #E0DFD6;
  --wash: #EFEEE7;
  --accent: #9C4A0F;
  --accent-dark: #7A3A0C;
  --max: 780px;
  --serif: "STIX Two Text", Georgia, serif;
  --mono: "IBM Plex Mono", "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.075rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

/* ---------- Header / navigation ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}
.wordmark:hover { color: var(--ink); }
.wordmark svg { display: block; }
.wordmark .name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

nav.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
nav.site-nav a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 0.2rem 0;
}
nav.site-nav a:hover { color: var(--ink); }
nav.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom: 2px solid var(--accent);
}

/* ---------- Page scaffold ---------- */

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.25rem 1.25rem 4.5rem;
  animation: rise 0.5s ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

h1 {
  font-weight: 600;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 0.9rem;
}

.affiliations {
  font-size: 0.95rem;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 0.35rem;
}
.affiliations sup {
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.65em;
  color: var(--accent);
  margin-right: 1px;
}

.meta-row {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 1.6rem 0 2.4rem;
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
}
.meta-row span b { color: var(--ink); font-weight: 500; }

/* ---------- Sections ---------- */

section { margin-bottom: 2.8rem; }

h2 {
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 1.1rem;
}
h2::after {
  content: "";
  display: block;
  width: 2.2rem;
  border-bottom: 2px solid var(--accent);
  margin-top: 0.45rem;
}

h3 {
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 0.15rem;
}

p + p { margin-top: 0.9rem; }

.lede { font-size: 1.15rem; }

/* ---------- Entries (experience / research) ---------- */

.entry {
  display: grid;
  grid-template-columns: 9.5rem 1fr;
  gap: 1.4rem;
  padding: 1.35rem 0;
  border-top: 1px solid var(--line);
}
.entry:last-child { border-bottom: 1px solid var(--line); }

.entry .when {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  padding-top: 0.35rem;
}

.entry .org {
  font-size: 0.95rem;
  color: var(--muted);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.entry ul { padding-left: 1.1rem; margin-top: 0.4rem; }
.entry li { margin-bottom: 0.35rem; }

@media (max-width: 620px) {
  .entry { grid-template-columns: 1fr; gap: 0.3rem; }
}

/* ---------- Cards (documents) ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}

.card {
  border: 1px solid var(--line);
  background: #FFFFFF;
  border-radius: 4px;
  padding: 1.5rem 1.5rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.card .doc-type {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.card p { font-size: 0.98rem; color: var(--muted); }

.card .actions { margin-top: auto; padding-top: 0.9rem; }

.button {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  background: var(--ink);
  padding: 0.55rem 1rem;
  border-radius: 3px;
  text-decoration: none;
}
.button:hover { background: var(--accent-dark); color: var(--paper); }
.button.secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
}
.button.secondary:hover { border-color: var(--accent-dark); color: var(--accent-dark); }

/* ---------- Abstract panel ---------- */

.abstract {
  background: var(--wash);
  border-left: 3px solid var(--accent);
  padding: 1.4rem 1.6rem;
  border-radius: 0 4px 4px 0;
}

/* ---------- Keywords / tags ---------- */

.keywords { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.keywords span {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  background: #FFFFFF;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

/* ---------- Footer ---------- */

footer {
  border-top: 1px solid var(--line);
  background: var(--wash);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 2.4rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-inner .contact { font-size: 0.95rem; }
.footer-inner .contact .label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.footer-inner .colophon {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  align-self: flex-end;
}