/* =========================================================
   Design tokens
   ========================================================= */

:root {
  --topbar-height: 68px;

  --home-content-width: 1130px;
  --interior-content-width: 980px;

  --home-paper: #ffffff;
  --home-ink: #23282b;
  --home-muted: #626a6e;
  --home-accent: #800000;
  --home-accent-hover: #5c0000;
  --home-line: #e2dbd8;
  --paper-title: #3d0000;
  --link-blue: #800000;
}

/* =========================================================
   Base
   ========================================================= */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Source Sans Pro", "Lato", Arial, sans-serif;
  color: var(--home-ink);
  background: var(--home-paper);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--home-accent);
  text-decoration: underline;
  text-decoration-color: #c9a0a0;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 150ms ease, text-decoration-color 150ms ease;
}

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

a:focus-visible {
  outline: 2px solid #c9a0a0;
  outline-offset: 3px;
}

/* =========================================================
   Top navigation
   ========================================================= */

.topbar {
  height: var(--topbar-height);
  background: var(--home-paper);
  color: var(--home-ink);

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding-right: max(24px, calc((100vw - var(--home-content-width)) / 2 + 24px));
  padding-left: max(24px, calc((100vw - var(--home-content-width)) / 2 + 24px));

  border-bottom: 1px solid var(--home-line);
}

.site-name {
  color: var(--home-ink);
  font-size: 23px;
  font-weight: 600;
  text-decoration: none;
}

.site-name:hover {
  color: var(--home-accent-hover);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  padding: 4px 0 3px;
  border-bottom: 2px solid transparent;
  color: #3c4448;
  font-size: 17px;
  font-weight: 400;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--home-accent-hover);
}

.nav-links a.active-white {
  border-bottom-color: var(--home-accent);
  color: var(--home-accent);
  font-weight: 600;
}

/* =========================================================
   Home page — sidebar + bio layout
   ========================================================= */

.home-content {
  padding-top: 56px;
  padding-bottom: 80px;
  min-height: calc(100vh - var(--topbar-height));
}

.home-wrapper {
  max-width: var(--home-content-width);
  margin: 0 auto;

  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  column-gap: 68px;
  align-items: start;

  padding: 0 24px;
}

.photo-column {
  width: 100%;
  padding-top: 5px;
  position: sticky;
  top: 24px;
}

.profile-photo-frame {
  width: 180px;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--home-line);
  background: #faf5f5;
  box-shadow: 0 8px 24px rgba(128, 0, 0, 0.08);
  overflow: hidden;
}

.profile-photo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center center;
}

.profile-name {
  margin: 22px 0 4px 0;
  color: var(--home-ink);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.25;
}

.profile-role,
.profile-affiliation {
  margin: 0 0 4px 0;
  color: var(--home-muted);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.4;
}

.profile-links {
  width: 180px;
  margin: 22px 0 0 0;
  border-top: 1px solid var(--home-line);
  color: var(--home-muted);
  font-size: 15.5px;
  line-height: 1.35;
}

.profile-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 42px;
  margin: 0;
  border-bottom: 1px solid var(--home-line);
  color: #3c4448;
  text-decoration: none;
  white-space: nowrap;
  transition: color 150ms ease, background-color 150ms ease;
}

.profile-links a::after {
  width: 6px;
  height: 6px;
  margin-right: 3px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  content: "";
  opacity: 0.5;
  transform: rotate(45deg);
}

.profile-links a span {
  flex: 1;
}

.profile-link-icon {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  color: var(--home-accent);
}

.profile-links a:hover {
  color: var(--home-accent-hover);
  background: #fbf5f5;
}

/* Bio column */

.bio-column {
  max-width: 780px;
  padding-top: 0;
}

.bio-column h2 {
  margin: 0 0 22px 0;
  color: var(--home-ink);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.25;
}

.bio-column > p {
  margin: 0 0 16px 0;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.55;
}

.bio-column > p a {
  color: var(--home-accent);
  text-decoration-color: #c9a0a0;
}

.bio-column > p a:hover {
  color: var(--home-accent-hover);
  text-decoration-color: var(--home-accent-hover);
}

.research-summary {
  text-align: justify;
  text-align-last: left;
}

.contact-block {
  margin-top: 22px;
}

.contact-block p {
  margin-bottom: 6px;
  line-height: 1.5;
}

.contact-block .cv-line {
  margin-bottom: 6px;
}

.home-research {
  margin-top: 44px;
  scroll-margin-top: 24px;
}

/* =========================================================
   Interior pages (research / teaching)
   ========================================================= */

.page-content {
  padding-top: 52px;
  padding-bottom: 100px;
  min-height: 650px;
}

.page-wrapper {
  width: min(
    var(--interior-content-width),
    calc(100vw - 96px)
  );
  margin: 0 auto;
}

.page-title {
  margin: 0 0 24px 0;
  color: var(--home-ink);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.25;
}

.section-heading {
  margin: 0 0 18px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--home-line);
  color: var(--home-accent);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: uppercase;
}

.section-heading-secondary {
  margin-top: 44px;
}

/* =========================================================
   Paper listings
   ========================================================= */

.paper {
  margin-bottom: 27px;
}

.paper-title {
  margin: 0 0 6px 0;
  font-size: 18px;
  line-height: 1.42;
}

.paper-title strong {
  color: var(--paper-title);
  font-weight: 600;
}

.paper-title-link {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 150ms ease, text-decoration-color 150ms ease;
}

.paper-title-link:hover,
.paper-title-link:focus-visible {
  color: var(--home-accent-hover);
  text-decoration-color: currentColor;
}

.draft-note {
  margin-left: 8px;
  color: var(--home-muted);
  font-size: 14px;
  font-weight: 400;
  font-style: italic;
  white-space: nowrap;
}

.paper-note {
  margin: 0 0 10px 0;
  color: var(--home-muted);
  font-size: 12pt;
  line-height: 1.45;
}

.coauthor-link,
.coauthor-link:visited {
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-style: inherit;
  font-weight: inherit;
  text-decoration: underline;
  text-decoration-color: #9ba3aa;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.coauthor-link:hover {
  color: var(--home-accent);
  text-decoration-color: currentColor;
}

.paper-status {
  width: fit-content;
  margin: 2px 0 12px 0;
  padding: 3px 0 3px 10px;
  border-left: 2px solid #c9a0a0;
  color: var(--home-muted);
  font-size: 15px;
  line-height: 1.45;
}

.paper-jmp {
  width: fit-content;
  margin: 2px 0 12px 0;
  padding: 3px 0 3px 10px;
  border-left: 3px solid var(--home-accent);
  color: var(--home-accent);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  line-height: 1.45;
}

.journal-name {
  color: var(--home-ink);
  font-size: 16px;
  font-style: italic;
  font-weight: 600;
}

.paper-award {
  width: fit-content;
  max-width: 100%;
  margin: 0 0 10px 0;
  font-size: 15px;
  line-height: 1.45;
}

.paper-award-link {
  color: var(--home-muted);
  text-decoration: underline;
  text-decoration-color: #b8bec1;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.paper-award-link strong {
  color: #51585b;
  font-weight: 500;
}

.paper-award-link:hover,
.paper-award-link:focus-visible {
  color: var(--home-accent-hover);
  text-decoration-color: currentColor;
}

.paper-award-text {
  color: var(--home-muted);
  font-size: 15px;
  line-height: 1.45;
}

.paper-award-text strong {
  color: #51585b;
  font-weight: 500;
}

.paper-presentations {
  margin: 0 0 10px 0;
  color: var(--home-muted);
  font-size: 10.5pt;
  line-height: 1.45;
}

/* Paper action pills */

.paper-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
}

.paper-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 2px 9px;
  border: 1px solid var(--link-blue);
  border-radius: 2px;
  background: transparent;
  color: var(--link-blue);
  cursor: pointer;
  font-family: inherit;
  font-size: 10pt;
  font-weight: 400;
  line-height: 1.25;
  text-decoration: none;
}

.paper-action:hover,
.paper-action:focus-visible,
.abstract-button[aria-expanded="true"] {
  background: #f5e8e8;
  color: var(--home-accent-hover);
  border-color: var(--home-accent-hover);
}

.paper-abstract-panel {
  margin-top: 14px;
}

.paper-abstract {
  margin: 0;
  font-size: 16px;
  line-height: 1.68;
  text-align: justify;
}

/* =========================================================
   Teaching listing (compact rows)
   ========================================================= */

.teaching-list .paper {
  margin-bottom: 20px;
}

/* =========================================================
   Mobile layout
   ========================================================= */

@media (max-width: 900px) {
  :root {
    --topbar-height: auto;
  }

  body {
    font-size: 16px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 22px;
  }

  .nav-links {
    gap: 18px;
    flex-wrap: wrap;
  }

  .nav-links a {
    font-size: 16px;
  }

  .home-content {
    padding-top: 46px;
    padding-bottom: 60px;
  }

  .home-wrapper {
    grid-template-columns: 1fr;
    row-gap: 38px;
    padding: 0 24px;
  }

  .photo-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 0;
    position: static;
    text-align: center;
  }

  .profile-photo-frame {
    width: 168px;
  }

  .profile-name {
    margin-top: 16px;
  }

  .profile-links {
    width: 100%;
    max-width: 320px;
  }

  .bio-column {
    max-width: 100%;
  }

  .bio-column h2 {
    font-size: 26px;
  }

  .bio-column > p {
    font-size: 17px;
  }

  .research-summary {
    text-align: left;
  }

  .page-content {
    padding-top: 42px;
    padding-bottom: 70px;
  }

  .page-wrapper {
    width: calc(100vw - 48px);
  }

  .page-title {
    font-size: 26px;
  }

  .section-heading {
    font-size: 19px;
  }

  .paper-title {
    font-size: 17px;
  }

  .paper-note,
  .paper-abstract {
    font-size: 12pt;
  }
}