/* Type: Source Serif 4 (text) + IBM Plex Sans (metadata) */

@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Source Serif 4";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/source-serif-4-latin-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
}

:root {
  --ink: #1a1a1a;
  --paper: #fffefc;
  --accent: #8a2f22;
  --muted: #6f6a64;
  --rule: #e7e2da;
  --underline: #c9a49e;
  --abstract: #3a3733;
  --select: #f3dcd6;
  --serif: "Source Serif 4", Charter, Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e9e4dc;
    --paper: #14120f;
    --accent: #e08f7a;
    --muted: #a09890;
    --rule: #322e29;
    --underline: #8a5c50;
    --abstract: #c9c3ba;
    --select: #4a2f28;
  }
}

* { box-sizing: border-box; }

html { font-size: 18px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.page {
  max-width: 42rem;
  margin: 0 auto;
  padding: 3.5rem 1.25rem 5rem;
}

.masthead { margin-bottom: 3rem; }

.masthead h1 {
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0 0 0.2rem;
}

.masthead h1 a { color: var(--ink); text-decoration: none; }

.masthead .role {
  font-size: 0.98rem;
  color: var(--muted);
  margin: 0 0 1.1rem;
}

.masthead nav {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.1rem;
}

.masthead nav a {
  color: var(--muted);
  text-decoration: none;
  margin-right: 1.4rem;
}

.masthead nav a:hover { color: var(--accent); }
.masthead nav a[aria-current="page"] { color: var(--ink); }

h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 2.6rem 0 0.9rem;
}

h2:first-of-type { margin-top: 0; }

p { margin: 0 0 1.05rem; }

a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2.5px;
  text-decoration-color: var(--underline);
}

a:hover { text-decoration-color: var(--accent); }

/* Dated entries (news, publications): date hangs in the left margin */
.entry {
  position: relative;
  margin: 0 0 1.35rem;
}

.entry .date {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 0.15rem;
}

@media (min-width: 62rem) {
  .entry .date {
    position: absolute;
    left: -9.5rem;
    top: 0.28rem;
    width: 8.25rem;
    text-align: right;
    margin: 0;
  }
}

.pub { margin-bottom: 1.6rem; }

.pub .title {
  font-weight: 600;
  margin-bottom: 0.1rem;
}

.pub .byline {
  font-size: 0.93rem;
  margin-bottom: 0.15rem;
}

.pub .venue { font-style: italic; }

.pub .links {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pub .links a { text-decoration: none; color: var(--accent); }
.pub .links a:hover { text-decoration: underline; }

.pub details { margin-top: 0.25rem; }

.pub summary {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  list-style: none;
}

.pub summary::-webkit-details-marker { display: none; }
.pub summary::after { content: " +"; }
.pub details[open] summary::after { content: " \2212"; }

.pub details p {
  font-size: 0.93rem;
  color: var(--abstract);
  margin-top: 0.35rem;
}

ul { padding-left: 1.1rem; margin: 0 0 1.05rem; }
li { margin-bottom: 0.35rem; }

footer {
  margin-top: 4rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

footer a { color: var(--muted); text-decoration: none; margin-right: 1.2rem; }
footer a:hover { color: var(--accent); }

::selection { background: var(--select); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}