/* Isaac Dunn — personal website
   GENERATED from content/ + spec/ by Claude. Do not hand-edit; change the
   inputs (see spec/design.md for the design tokens) and recompile.
   Visual direction: a refresh of the old Hugo "Academic" (minimal) theme. */

/* ---- Design tokens ---- */
:root {
  --bg: #ffffff;
  --bg-alt: #f5f6f8;
  --surface: #ffffff;
  --text: #21242b;
  --muted: #6a6f78;
  --border: #e4e6ea;
  --accent: #2c64c4;
  --accent-strong: #1f4e9e;

  --font-serif: "Lora", Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --container: 60rem;
  --pad-x: clamp(1rem, 5vw, 2.5rem);
  --rail: minmax(13rem, 30%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171c;
    --bg-alt: #1b1e25;
    --surface: #1b1e25;
    --text: #e7e8ea;
    --muted: #9aa0a6;
    --border: #2b2f38;
    --accent: #7ea8f0;
    --accent-strong: #a9c5f5;
  }
}

/* ---- Base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
img { max-width: 100%; height: auto; display: block; }
p { margin: 0 0 1rem; }

h1, h2, h3 { font-family: var(--font-serif); line-height: 1.25; font-weight: 500; }
h1 { font-size: 2rem; margin: 0; }
h2 { font-size: 1.9rem; margin: 0 0 1rem; font-weight: 400; }
h3 { font-size: 1.2rem; margin: 0 0 0.3rem; font-weight: 600; }

.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--pad-x); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Nav ---- */
.site-nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-sans);
}
.site-nav .container {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: 0.5rem 1.5rem; padding-block: 0.85rem;
}
.site-nav .brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.site-nav .links { margin-left: auto; display: flex; flex-wrap: wrap; gap: 0.25rem 1.4rem; }
.site-nav .links a { color: var(--muted); font-size: 0.98rem; }
.site-nav .links a:hover, .site-nav .links a.active { color: var(--accent); text-decoration: none; }

/* ---- Widget sections ---- */
.widget { padding-block: 3.5rem; scroll-margin-top: 4rem; }
.widget:nth-of-type(even) { background: var(--bg-alt); }

.widget .grid {
  display: grid;
  grid-template-columns: var(--rail) 1fr;
  gap: 2.5rem;
  align-items: start;
}
.widget .grid > .body > :first-child { margin-top: 0; }

@media (max-width: 48rem) {
  .widget .grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---- Profile card (About rail) ---- */
.profile { text-align: center; font-family: var(--font-sans); }
.profile .photo {
  width: 180px; height: 180px; border-radius: 50%;
  object-fit: cover; margin: 0 auto 1rem; border: 1px solid var(--border);
}
.profile .name { font-family: var(--font-sans); font-weight: 500; font-size: 1.6rem; margin: 0; }
.profile .role { color: var(--muted); margin: 0.25rem 0 1rem; }

.social { display: flex; flex-wrap: wrap; gap: 1rem; list-style: none; margin: 0; padding: 0; }
.profile .social { justify-content: center; }
.social a { color: var(--accent); display: inline-flex; }
.social a:hover { color: var(--accent-strong); }
.social .icon { width: 1.5rem; height: 1.5rem; }

/* ---- Icons ---- */
.icon { width: 1em; height: 1em; fill: currentColor; vertical-align: -0.125em; }

/* ---- Interests / Education ---- */
.about-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 2rem; }
@media (max-width: 34rem) { .about-cols { grid-template-columns: 1fr; } }

.plain-list { margin: 0; padding-left: 1.1rem; }
.plain-list li { margin-bottom: 0.4rem; }

.edu-list { list-style: none; margin: 0; padding: 0; }
.edu-list li { display: grid; grid-template-columns: 1.5rem 1fr; grid-template-rows: auto auto; column-gap: 0.5rem; margin-bottom: 1rem; }
.edu-list .cap { grid-column: 1; grid-row: 1 / span 2; width: 1.1rem; height: 1.1rem; color: var(--muted); margin-top: 0.2rem; }
.edu-list .degree { grid-column: 2; grid-row: 1; font-weight: 500; }
.edu-list .inst { grid-column: 2; grid-row: 2; color: var(--muted); font-size: 0.92rem; }

/* ---- Publications ---- */
.pub { display: grid; grid-template-columns: 1fr; gap: 0.75rem 1.5rem; padding-block: 1.4rem; }
.pub:first-child { padding-top: 0; }  /* align first entry's top with the "Publications" rail heading */
.pub + .pub { border-top: 1px solid var(--border); }
.pub.has-image { grid-template-columns: 1fr minmax(120px, 180px); }
.pub .pub-main { min-width: 0; }
.pub h3 { font-size: 1.25rem; margin: 0 0 0.4rem; }
.pub .summary { margin: 0 0 0.6rem; }
.pub .authors { color: var(--muted); font-family: var(--font-sans); font-size: 0.92rem; margin: 0 0 0.6rem; }
.pub .thumb img { border-radius: 6px; border: 1px solid var(--border); width: 100%; }

.pub-links { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; margin: 0; padding: 0; }
.pub-links a {
  font-family: var(--font-sans); font-size: 0.85rem;
  border: 1px solid var(--accent); color: var(--accent);
  padding: 0.2rem 0.7rem; border-radius: 999px;
}
.pub-links a:hover { background: var(--accent); color: #fff; text-decoration: none; }

@media (max-width: 34rem) {
  .pub.has-image { grid-template-columns: 1fr; }
  .pub .thumb { max-width: 220px; }
}

/* ---- Contact list ---- */
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.1rem; }
.contact-list .ci { width: 1.7rem; height: 1.7rem; flex: none; fill: currentColor; color: var(--text); }

/* ---- Album grid ---- */
.album-grid {
  list-style: none; margin: 1.5rem 0 0; padding: 0;
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
}
.album-grid figure { margin: 0; }
.album-grid img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  border-radius: 6px; border: 1px solid var(--border);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.album-grid a:hover img { transform: translateY(-3px); box-shadow: 0 6px 18px rgba(0,0,0,0.18); }
.album-grid figcaption { color: var(--muted); font-family: var(--font-sans); font-size: 0.85rem; margin-top: 0.4rem; }

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