/* ==========================================================================
   jacobrmorris.com
   Colors, type and spacing are defined once as custom properties in :root;
   dark mode only redefines the colors.

   1. Fonts & tokens      5. Sections
   2. Base                6. Research
   3. Layout              7. Teaching & references
   4. Profile & about     8. Footer, 404, utilities, print
   ========================================================================== */

/* 1. Fonts & tokens ------------------------------------------------------- */

@font-face {
  font-family: "Newsreader";
  src: url("../fonts/newsreader-latin.woff2") format("woff2");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* Georgia resized to Newsreader's proportions, so headings don't shift when
   the web font finishes loading. */
@font-face {
  font-family: "Newsreader Fallback";
  src: local("Georgia");
  size-adjust: 97.9%;
  ascent-override: 75.1%;
  descent-override: 27.1%;
  line-gap-override: 0%;
}

:root {
  color-scheme: light dark;

  --font-display: "Newsreader", "Newsreader Fallback", Georgia, serif;
  --font-text: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --bg: #fcfcfa;
  --text: #1a1a19;
  --text-muted: #4f4f4a;
  --text-faint: #6b6b65;
  --rule: #e3e2dd;
  --accent: #1f4f8f;
  --accent-hover: #173c6e;
  --accent-tint: rgb(31 79 143 / 0.08);
  --on-accent: #ffffff;

  --content: 64rem;
  --sidebar: 15rem;
  --column-gap: clamp(3rem, 6vw, 5rem);
  --measure: 44rem;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
  --radius: 0.375rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131417;
    --text: #ebebe7;
    --text-muted: #b9b9b2;
    --text-faint: #92928b;
    --rule: #2b2d32;
    --accent: #93b6f2;
    --accent-hover: #b8cff8;
    --accent-tint: rgb(147 182 242 / 0.12);
    --on-accent: #131417;
  }
}

/* 2. Base ----------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 1.5rem;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.65 var(--font-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  text-wrap: balance;
}

p,
ul,
ol,
address {
  margin: 0;
}

p {
  text-wrap: pretty;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  text-decoration-color: color-mix(in srgb, currentColor 40%, transparent);
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: var(--accent-tint);
}

main:focus {
  outline: none;
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* 3. Layout --------------------------------------------------------------- */

.wrap {
  width: min(100% - 2 * var(--gutter), var(--content));
  margin-inline: auto;
}

/* Home page: profile column beside the main column. */
.layout {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, var(--measure));
  gap: 0 var(--column-gap);
  align-items: start;
  padding-top: clamp(2.5rem, 7vw, 4.5rem);
}

.main-column {
  max-width: var(--measure);
}

/* Other pages (404) get a simple header with a link home. */
.site-header .wrap {
  padding-block: 1.5rem;
}

.wordmark {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 500;
  text-decoration: none;
}

.wordmark:hover {
  color: var(--text);
}

/* 4. Profile & about ------------------------------------------------------ */

.profile {
  position: sticky;
  top: 2.5rem;
}

.profile-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius);
  object-fit: cover;
}

.profile h1 {
  margin-top: 1.25rem;
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.profile-position {
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* Documents (CV, and the job market paper in job-market mode) get outlined
   buttons; contact and profile links stay plain text below them. */
.profile-docs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.doc-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.doc-button:hover {
  background: var(--accent-tint);
  color: var(--accent);
}

.doc-button svg {
  flex: none;
  width: 1.1em;
  height: 1.1em;
}

.profile-links {
  display: grid;
  justify-items: start;
  gap: 0.125rem;
  margin-top: 0.875rem;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.profile-links a {
  display: inline-block;
  padding-block: 0.125rem;
  text-decoration: none;
}

.profile-links a:hover {
  text-decoration: underline;
}

.profile-address {
  margin-top: 1.25rem;
  color: var(--text-faint);
  font-size: 0.875rem;
  font-style: normal;
  line-height: 1.55;
}

.about {
  font-size: 1rem;
}

.about p + p {
  margin-top: 0.75em;
}

.job-market {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-tint);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
}

.job-market::before {
  content: "";
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: 50%;
  background: currentColor;
}

/* A sticky column taller than the window would hide its last lines. */
@media (max-height: 44rem) {
  .profile {
    position: static;
  }
}

/* Narrow screens: one column, with a small photo beside the name. The mailing
   address is left out here so the bio follows right after the contact links. */
@media (max-width: 56rem) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.25rem;
    padding-top: 2rem;
  }

  .profile {
    position: static;
    display: grid;
    grid-template-columns: 5.5rem 1fr;
    gap: 0 1.25rem;
    align-items: center;
  }

  .profile-photo {
    grid-row: span 2;
  }

  .profile h1 {
    align-self: end;
    margin-top: 0;
    font-size: 1.875rem;
  }

  .profile-position {
    align-self: start;
    margin-top: 0.375rem;
  }

  .profile-docs {
    grid-column: 1 / -1;
  }

  .profile-links {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 1.25rem;
  }

  .profile-address {
    display: none;
  }
}

/* 5. Sections ------------------------------------------------------------- */

.section {
  margin-top: clamp(2.75rem, 6vw, 3.75rem);
}

.section-title {
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--rule);
  font-size: clamp(1.5rem, 1.3rem + 0.8vw, 1.75rem);
  letter-spacing: -0.01em;
}

.label {
  color: var(--text-faint);
  font-family: var(--font-text);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

/* 6. Research ------------------------------------------------------------- */

.paper-group + .paper-group {
  margin-top: 2.75rem;
}

.paper-group > .label {
  margin-bottom: 1rem;
}

.paper + .paper {
  margin-top: 1.75rem;
}

.paper-title {
  font-size: 1.1875rem;
  font-weight: 550;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

.paper--featured .paper-title {
  font-size: clamp(1.375rem, 1.2rem + 0.8vw, 1.625rem);
}

.paper-title a {
  color: inherit;
  text-decoration: none;
}

.paper-title a:hover {
  color: var(--accent);
}

.paper-meta {
  margin-top: 0.375rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.paper-meta a {
  color: inherit;
}

.paper-meta > * + *::before {
  content: "·";
  margin-inline: 0.5em;
  color: var(--text-faint);
}

.paper-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.25rem;
  margin-top: 0.5rem;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

.paper-actions a {
  text-decoration: none;
}

.paper-actions a:hover {
  text-decoration: underline;
}

/* Stands in for the Abstract toggle when an abstract can't be posted yet. */
.abstract-note {
  color: var(--text-faint);
  font-weight: 400;
}

/* Looks like the links beside it, plus a chevron that flips when open. */
.abstract-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}

.abstract-toggle[hidden] {
  display: none;
}

.abstract-toggle::after {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-0.125rem) rotate(45deg);
  transition: transform 0.15s ease;
}

.abstract-toggle[aria-expanded="true"]::after {
  transform: translateY(0.125rem) rotate(-135deg);
}

.abstract-toggle:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.paper-abstract {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.7;
}

/* A collapsed abstract (hidden="until-found") still has a box; drop its margin. */
.paper-abstract[hidden] {
  margin-top: 0;
}

.paper-abstract p + p {
  margin-top: 0.75em;
}

.figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.5rem 2rem;
  margin-top: 2rem;
}

.figures figure {
  margin: 0;
}

.figure-link {
  display: block;
  border-radius: var(--radius);
  cursor: zoom-in;
}

.figures img {
  width: 100%;
  border-radius: var(--radius);
  background: #fff;
}

.figures figcaption {
  margin-top: 0.75rem;
  color: var(--text-faint);
  font-size: 0.8125rem;
  line-height: 1.5;
}

@media (prefers-color-scheme: dark) {
  .figures img {
    padding: 0.375rem;
    filter: brightness(0.92);
  }
}

/* 7. Teaching & references ------------------------------------------------ */

.teaching-role {
  color: var(--text-muted);
}

.course-list {
  margin-top: 0.75rem;
  padding: 0;
  list-style: none;
}

.course-list li {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: 1rem;
  padding-block: 0.625rem;
  border-top: 1px solid var(--rule);
}

.course-list li:last-child {
  border-bottom: 1px solid var(--rule);
}

.course-code {
  color: var(--text-faint);
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
}

.awards {
  margin-top: 1.25rem;
  padding: 0;
  list-style: none;
  color: var(--text-muted);
}

.awards li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.awards svg {
  flex: none;
  width: 1.125rem;
  height: 1.125rem;
  color: var(--accent);
}

.references {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr));
  gap: 1.5rem 2rem;
  padding: 0;
  list-style: none;
}

.reference-name {
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 550;
}

.reference-name a {
  color: inherit;
  text-decoration: none;
}

.reference-name a:hover {
  color: var(--accent);
}

.references p:not(.reference-name) {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

/* 8. Footer, 404, utilities, print ---------------------------------------- */

.site-footer {
  margin-top: clamp(3.5rem, 9vw, 5.5rem);
  color: var(--text-faint);
  font-size: 0.875rem;
}

.site-footer .wrap {
  padding-block: 1.5rem 2.5rem;
}

/* On the home page, line the footer up with the main column. */
@media (min-width: 56.01rem) {
  .home .site-footer .wrap {
    padding-left: calc(var(--sidebar) + var(--column-gap));
  }
}

.not-found {
  padding-block: clamp(3rem, 12vw, 7rem) 0;
}

.not-found h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2.25rem, 1.75rem + 2vw, 3rem);
}

.not-found p + p {
  margin-top: 0.5rem;
}

.eyebrow {
  color: var(--text-faint);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.09em;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

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

@media print {
  :root {
    --bg: #fff;
    --text: #000;
    --text-muted: #222;
    --text-faint: #555;
    --rule: #ccc;
    --accent: #000;
  }

  body {
    font-size: 10.5pt;
  }

  .layout {
    display: block;
  }

  .profile {
    position: static;
  }

  .profile-photo {
    width: 7rem;
  }

  .skip-link,
  .abstract-toggle {
    display: none;
  }

  /* Print every abstract, including collapsed ones. */
  .paper-abstract[hidden] {
    display: block !important;
    content-visibility: visible !important;
    margin-top: 1rem;
  }

  .paper,
  .figures figure,
  .references li {
    break-inside: avoid;
  }

  .paper-actions a::after {
    content: " (" attr(href) ")";
    font-weight: 400;
  }
}