/* Shared polish layer. Loaded after w3.css, so it wins on equal specificity. */

:root {
  --ink: #16191d;
  --body: #3c444d;
  --muted: #737b85;
  --rule: #e5e8ec;
  --accent: #a4161a;
  --bg: #fff;
  --measure: 58rem;
}

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

body, html {
  height: auto;
  min-height: 100%;
}

body {
  /* Column layout so the footer sits at the bottom on short pages. */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: "Raleway", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: inherit;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 600;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
  transition: color .15s ease;
}

a:hover { text-decoration: underline; }

/* ---------- Navbar ---------- */

/* Sticky rather than fixed: the bar reserves its own space, so pages need no
   manual top offset to clear it. */
.w3-top {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .88);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--rule);
}

/* Same box as .wrap, so nav items line up with the text column. */
#myNavbar.w3-bar {
  background: transparent;
  box-shadow: none;
  max-width: var(--measure);
  margin: 0 auto;
  padding: .7rem 1.5rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0 .15rem;
}

#myNavbar .site-name {
  font-weight: 600;
  font-size: .95rem;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-right: auto;
  padding: 0;
}

#myNavbar .site-name:hover { text-decoration: none; color: var(--accent); }

/* w3.css styles .w3-button hover with !important, so these have to match it. */
#myNavbar .w3-bar-item.w3-button {
  padding: .4rem .7rem;
  margin: 0;
  width: auto;
  font-size: .82rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .02em;
  border-radius: 8px;
  color: var(--muted) !important;
  background-color: transparent !important;
  transition: color .15s ease, background-color .15s ease;
}

#myNavbar .w3-bar-item.w3-button:hover {
  color: var(--ink) !important;
  background-color: #f1f2f4 !important;
  text-decoration: none;
}

#myNavbar .w3-bar-item.w3-button[aria-current="page"] {
  color: var(--accent) !important;
  background-color: rgba(164, 22, 26, .08) !important;
}

/* ---------- Page shell ---------- */

.wrap {
  /* width:100% is required: auto cross-axis margins on a flex item cancel
     `stretch`, so without it the column shrink-to-fits its content. */
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 3.25rem 1.5rem 0;
}

.wrap.has-hero { padding-top: 2.25rem; }

/* ---------- Hero band ---------- */

.bgimg-1 {
  min-height: 0;
  height: 34vh;
  max-height: 320px;
  background-position: center 60%;
  background-size: cover;
}

/* ---------- Intro block ---------- */

.intro {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  margin-bottom: 2rem;
}

.intro-text { flex: 1 1 20rem; min-width: 0; }

.intro h1 {
  font-size: 2.35rem;
  margin: 0 0 .35rem;
}

.intro .role {
  margin: 0 0 .5rem;
  font-size: 1.02rem;
  color: var(--body);
}

.intro .contact {
  margin: 0;
  font-size: .92rem;
  color: var(--muted);
}

.portrait {
  flex: 0 0 172px;
  width: 172px;
  height: 212px;
  object-fit: cover;
  object-position: center 42%;
  border-radius: 8px;
  margin: 0;
  box-shadow: 0 1px 2px rgba(16, 24, 40, .1), 0 12px 28px -12px rgba(16, 24, 40, .35);
}

/* ---------- Body copy ---------- */

.wrap p { margin: 0 0 1.15rem; }

.wrap > h1 {
  font-size: 2.1rem;
  margin: 0 0 1.1rem;
}

.lede {
  font-size: 1.06rem;
  color: var(--body);
}

.wrap h2 {
  font-size: 1.32rem;
  margin: 2.75rem 0 .25rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--rule);
}

/* School colors */
.utah { color: #cc0000; }
.purdue { color: #8e6f3e; }
.michigan { color: #00274c; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: .9rem 0 0;
  padding: 0;
  list-style: none;
}

.tags li {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--body);
  background: #f4f5f7;
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: .2rem .7rem;
}

/* ---------- Publication / resource lists ---------- */

.pub-list, .link-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pub-list > li, .link-list > li {
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--rule);
  line-height: 1.55;
  font-size: .95rem;
  color: var(--muted);
}

.pub-list > li:last-child, .link-list > li:last-child { border-bottom: 0; }

/* First <i> in each entry is the paper title. */
.pub-list > li > i:first-child {
  display: block;
  font-style: normal;
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: .3rem;
}

/* The title is display:block, so the <br> that follows it would add a blank line. */
.pub-list > li > i:first-child + br { display: none; }

.pub-list b, .link-list b { color: var(--ink); font-weight: 600; }

.pub-list a, .link-list a {
  font-size: .88rem;
  font-weight: 500;
}

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

/* Width is the text column exactly, so the rule lines up with the copy above it. */
.site-footer {
  width: calc(100% - 3rem);
  max-width: calc(var(--measure) - 3rem);
  margin: auto auto 0;
  padding: 1.25rem 0 2.5rem;
  border-top: 1px solid var(--rule);
  font-size: .82rem;
  color: var(--muted);
}

.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--accent); }

/* ---------- Small screens ---------- */

@media (max-width: 640px) {
  body { font-size: 16px; }

  #myNavbar.w3-bar { padding: .6rem 1rem; }
  #myNavbar .site-name { width: 100%; margin: 0 0 .4rem; }
  #myNavbar .w3-bar-item.w3-button { margin: 0 .1rem 0 0; padding: .3rem .55rem; }
  /* Pull the first pill's padding back so its text lines up with the column edge. */
  #myNavbar .w3-bar-item.w3-button:first-of-type { margin-left: -.55rem; }

  .bgimg-1 { height: 26vh; }
  .wrap { padding-top: 2.5rem; }
  .wrap.has-hero { padding-top: 2rem; }

  /* Column direction turns flex-basis into a height, so reset it. */
  .intro { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
  .intro-text { flex: 0 0 auto; }
  .intro h1 { font-size: 2rem; }
  .portrait { flex-basis: auto; width: 160px; height: 200px; margin-top: 0; }
}