/* ==========================================================================
   Karaman Language & Cognition Lab
   assets/css/klab.css
   Palette is taken directly from the KLab logo. Everything tunable lives in
   the :root block below.
   ========================================================================== */

:root {
  /* brand — sampled from the lab logo */
  --navy:       #274375;
  --navy-deep:  #1B2F55;
  --navy-soft:  #35558C;
  --blue:       #3A87B9;
  --teal:       #6EB8BD;
  --teal-pale:  #A8D8DA;

  /* neutrals */
  --paper:      #F4F7F9;
  --surface:    #FFFFFF;
  --ink:        #1E2833;
  --ink-soft:   #55636F;
  --rule:       #D8E1E8;
  --on-navy:      #FFFFFF;
  --on-navy-soft: #B9CBE4;

  /* type */
  --display: "Newsreader", Georgia, "Times New Roman", serif;
  --body:    "Lato", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* measure & rhythm */
  --wrap: 1140px;
  --measure: 66ch;
  --s1: .5rem;
  --s2: 1rem;
  --s3: 1.5rem;
  --s4: 2.25rem;
  --s5: 3.75rem;
  --s6: 5.5rem;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.65;
  /* font smoothing is left on the browser default on purpose: forcing
     antialiasing makes text look thin and soft on Windows and on non-retina
     screens, which is the usual cause of "blurry" type */
  text-rendering: optimizeLegibility;
}

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

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--blue); }

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

.skip { position: absolute; left: -9999px; top: 0; background: var(--navy); color: #fff; padding: .75rem 1rem; z-index: 100; }
.skip:focus { left: 0; }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.measure { max-width: var(--measure); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

/* --------------------------------------------------------------- masthead */

.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; z-index: 50;
}
.masthead-in {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s3); padding-block: .9rem;
}

.mark { display: flex; align-items: center; gap: .75rem; text-decoration: none; }
.mark img { height: 42px; width: auto; }
.mark-text { display: flex; flex-direction: column; line-height: 1.1; }
.mark-1 { font-size: 1.5rem; font-weight: 400; color: var(--teal); letter-spacing: -.01em; }
.mark-k { font-weight: 700; color: var(--navy); }
.mark-2 { font-size: .74rem; color: var(--ink-soft); }

.nav ul { display: flex; gap: 1.5rem; list-style: none; margin: 0; padding: 0; }
.nav a {
  text-decoration: none; font-size: .95rem;
  padding-block: .4rem; border-bottom: 2px solid transparent; color: var(--ink);
}
.nav a:hover { border-bottom-color: var(--teal); }
.nav a[aria-current="page"] { border-bottom-color: var(--blue); color: var(--navy); font-weight: 700; }

.nav-toggle {
  display: none; font: inherit; font-size: .9rem;
  background: none; border: 1px solid var(--rule); border-radius: 4px;
  padding: .45rem .75rem; color: var(--ink); cursor: pointer;
}

/* ------------------------------------------------------------------- hero */

.hero {
  background:
    radial-gradient(90rem 40rem at 78% -10%, rgba(110,184,189,.20), transparent 60%),
    radial-gradient(60rem 30rem at 0% 110%, rgba(58,135,185,.28), transparent 62%),
    var(--navy);
  color: var(--on-navy);
  padding-block: var(--s6) var(--s5);
}
.hero-kicker { font-size: .84rem; color: var(--on-navy-soft); margin: 0 0 var(--s4); }

/* the speech stream */
.stream {
  font-family: var(--mono);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  line-height: 2.4;
  word-break: break-word;
  margin: 0 0 var(--s4);
  color: #EAF1F8;
}
.stream .w {
  display: inline-block;
  padding-bottom: .16em;
  background-image: linear-gradient(var(--teal), var(--teal));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0% 2px;
  margin-inline: 0;
  transition: margin .85s cubic-bezier(.2,.7,.2,1), background-size .85s cubic-bezier(.2,.7,.2,1);
  transition-delay: calc(var(--i) * 45ms);
}
.stream .w:nth-child(odd) { background-image: linear-gradient(var(--blue), var(--blue)); }
.stream.segmented .w { margin-inline: .42em; background-size: 100% 2px; }
.stream .tail { color: var(--on-navy-soft); }

.hero h1 {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(2.1rem, 4.9vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -.012em;
  margin: 0 0 var(--s3);
  max-width: 19ch;
}
.hero p.lede { max-width: 54ch; font-size: 1.12rem; margin: 0 0 var(--s4); color: #E7EEF6; }
.hero .note {
  max-width: 56ch; color: var(--on-navy-soft); font-size: .93rem;
  margin: var(--s4) 0 0; padding-left: 1rem; border-left: 2px solid var(--teal);
}

.actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.btn {
  display: inline-block; text-decoration: none;
  padding: .72rem 1.35rem; border-radius: 3px;
  font-size: .97rem; font-weight: 700;
  border: 1px solid transparent;
  transition: background-color .15s ease, border-color .15s ease;
}
.btn-1 { background: var(--teal); color: #10303A; }
.btn-1:hover { background: var(--teal-pale); }
.btn-2 { border-color: rgba(255,255,255,.45); color: #fff; }
.btn-2:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-deep); }

/* ------------------------------------------------------------- page heads */

.page-head {
  background:
    radial-gradient(70rem 26rem at 88% -20%, rgba(110,184,189,.20), transparent 60%),
    var(--navy);
  color: var(--on-navy);
  padding-block: var(--s5) var(--s4);
}
.page-head h1 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(2rem, 4.2vw, 3rem); line-height: 1.12;
  letter-spacing: -.012em; margin: 0 0 var(--s2); max-width: 22ch;
}
.page-head p { max-width: 58ch; margin: 0; color: #E7EEF6; }
.page-head a { color: #fff; }

/* ---------------------------------------------------------------- section */

section { padding-block: var(--s5); }
.page-head + section { padding-top: var(--s5); }

h2 {
  font-family: var(--display); font-weight: 500;
  font-size: clamp(1.55rem, 2.6vw, 2.05rem); line-height: 1.18;
  letter-spacing: -.01em; margin: 0 0 var(--s3); color: var(--navy);
}
h3 { font-family: var(--display); font-weight: 600; font-size: 1.24rem; line-height: 1.3; margin: 0 0 .4rem; }
h4 { font-size: 1rem; margin: 0 0 .3rem; }
p { margin: 0 0 var(--s2); }
p:last-child { margin-bottom: 0; }

.section-rule { border: 0; border-top: 1px solid var(--rule); margin: 0; }

.split {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: var(--s4) var(--s5);
  align-items: start;
}
.split > h2 { position: sticky; top: 6rem; margin-bottom: 0; }

/* ---------------------------------------------------------- research list */

.topics { list-style: none; margin: 0; padding: 0; }
.topics > li { padding-block: var(--s3); border-top: 1px solid var(--rule); }
.topics > li:first-child { border-top: 0; padding-top: 0; }
.topics h3 { margin-bottom: .45rem; color: var(--navy); }
.topics p { color: var(--ink-soft); max-width: 62ch; }

.projects { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s3); }
.project {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--blue);
  border-radius: 3px;
  padding: var(--s3) var(--s3) var(--s3) var(--s4);
  box-shadow: 0 1px 2px rgba(31, 51, 84, .05);
}
.project:nth-child(3n+2) { border-left-color: var(--teal); }
.project:nth-child(3n+3) { border-left-color: var(--navy); }
.project h3 { margin-bottom: .35rem; color: var(--navy); }
.project p { color: var(--ink-soft); max-width: 62ch; }
.project .meta { font-size: .85rem; color: var(--ink-soft); margin-top: .7rem; }
.status {
  font-size: .78rem; font-weight: 700;
  border-radius: 999px; padding: .15rem .7rem; white-space: nowrap;
  background: #E8F3F4; color: #1D5A63;
}

/* ----------------------------------------------------------------- people */

.people { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s4); }
.people.cols { grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); }

.person { display: grid; grid-template-columns: 6rem minmax(0,1fr); gap: var(--s3); align-items: start; }
.person.lead { grid-template-columns: 13rem minmax(0,1fr); gap: var(--s4); }

.portrait {
  width: 100%; aspect-ratio: 1; border-radius: 50%; overflow: hidden;
  background: var(--navy); color: #fff;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 600; font-size: 1.5rem;
  box-shadow: 0 0 0 1px var(--rule), 0 0 0 6px var(--surface), 0 0 0 7px var(--rule);
}
.person.lead .portrait { font-size: 2.6rem; }
.portrait img { width: 100%; height: 100%; object-fit: cover; }

.role { color: var(--blue); font-size: .92rem; font-weight: 700; margin: 0 0 .5rem; }
.person p { color: var(--ink-soft); font-size: .98rem; }
.person h3 { color: var(--navy); font-size: 1.32rem; }

.inline-links { list-style: none; display: flex; flex-wrap: wrap; gap: .3rem 1.1rem; margin: .8rem 0 0; padding: 0; font-size: .92rem; }
.inline-links a { color: var(--navy); }

.facts { margin: var(--s2) 0 0; padding: 0; list-style: none; font-size: .95rem; color: var(--ink-soft); }
.facts li { padding-block: .4rem; border-top: 1px solid var(--rule); }

.roster { list-style: none; margin: 0; padding: 0; }
.roster li { padding-block: .75rem; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; gap: .2rem 1rem; justify-content: space-between; }
.roster li:first-child { border-top: 0; }
.roster .where { color: var(--ink-soft); font-size: .92rem; }

/* ----------------------------------------------------------- publications */

.year {
  font-family: var(--display); font-weight: 600; font-size: 1.5rem; color: var(--navy);
  margin: 0 0 var(--s2); padding-bottom: .3rem; border-bottom: 2px solid var(--teal);
  display: inline-block;
}
.pubs { list-style: none; margin: 0 0 var(--s4); padding: 0; }
.pubs li { padding-block: var(--s2); border-top: 1px solid var(--rule); max-width: 76ch; }
.pubs li:first-child { border-top: 0; }
.pubs .title { font-family: var(--display); font-size: 1.1rem; color: var(--navy); }
.pubs .venue { color: var(--ink-soft); }
.pubs .doi { font-size: .88rem; }
.pubs .doi a { color: var(--blue); }

/* ------------------------------------------------------------------- news */

.news { list-style: none; margin: 0; padding: 0; }
.news li { display: grid; grid-template-columns: 7.5rem minmax(0,1fr); gap: var(--s2); padding-block: .95rem; border-top: 1px solid var(--rule); }
.news li:first-child { border-top: 0; }
.news time { color: var(--blue); font-size: .88rem; font-weight: 700; padding-top: .2rem; }

/* ------------------------------------------------------------------ lists */

.plain { padding-left: 1.15rem; margin: 0 0 var(--s2); }
.plain li { margin-bottom: .5rem; max-width: 62ch; color: var(--ink-soft); }
.plain li::marker { color: var(--teal); }

/* ------------------------------------------------------------------ bands */

.band { background: var(--surface); border-block: 1px solid var(--rule); }
.band-deep { background: var(--navy-deep); color: var(--on-navy); }
.band-deep h2 { color: #fff; }
.band-deep p { color: var(--on-navy-soft); }
.band-deep a { color: #fff; }

.cta { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: var(--s4); align-items: center; }
.cta p { max-width: 52ch; }

.courses { list-style: none; margin: 0; padding: 0; }
.courses li { padding-block: var(--s2); border-top: 1px solid var(--rule); max-width: 70ch; }
.courses li:first-child { border-top: 0; }
.courses .code { font-family: var(--mono); font-size: .84rem; color: var(--blue); margin-bottom: .2rem; }
.courses h3 { color: var(--navy); }
.courses p:not(.code) { color: var(--ink-soft); }

.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: var(--s4); }
address { font-style: normal; color: var(--ink-soft); }

/* ----------------------------------------------------------------- footer */

.foot { background: var(--navy-deep); color: var(--on-navy); padding-block: var(--s5) var(--s3); margin-top: var(--s5); }
.foot-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: var(--s4); }
.foot-mark { height: 58px; width: auto; margin-bottom: var(--s2); }
.foot h2 { font-size: 1.1rem; margin-bottom: .6rem; color: #fff; }
.foot p, .foot li { color: var(--on-navy-soft); font-size: .95rem; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { padding-block: .25rem; }
.foot a { color: #fff; }
.foot-base {
  margin-top: var(--s4); padding-top: var(--s2);
  border-top: 1px solid rgba(255,255,255,.16);
  font-size: .85rem; color: var(--on-navy-soft);
  display: flex; flex-wrap: wrap; gap: .4rem 1.5rem; justify-content: space-between;
}

/* ------------------------------------------------------------ responsive */

@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; gap: var(--s3); }
  .split > h2 { position: static; }
  .cta { grid-template-columns: 1fr; }
  .person.lead { grid-template-columns: 1fr; }
  .person.lead .portrait { width: 9rem; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--surface); border-bottom: 1px solid var(--rule);
    padding: var(--s2) 1.25rem var(--s3);
    box-shadow: 0 10px 20px rgba(27,47,85,.08);
  }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav a { display: block; padding-block: .7rem; border-bottom: 1px solid var(--rule); }
  .masthead-in { position: relative; }
  .mark img { height: 34px; }
  .mark-1 { font-size: 1.25rem; }
  .mark-2 { display: none; }
  .news li { grid-template-columns: 1fr; gap: .1rem; }
  .person { grid-template-columns: 1fr; }
  .person .portrait { width: 5rem; }
  :root { --s5: 2.75rem; --s6: 3.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .stream .w { transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

@media print {
  .masthead, .foot, .actions, .nav-toggle { display: none; }
  body { background: #fff; }
  .hero, .page-head, .band-deep { background: #fff; color: #000; }
  .hero h1, .page-head h1 { color: #000; }
}