/* ============================================================
   RealMedia — shared stylesheet
   Concept: "critically reading and marking up media"
   Ink on cool paper · lime highlighter · monospace annotations
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;1,6..72,400&family=Space+Mono:wght@400;700&display=swap');

:root{
  --ink:#16171d;
  --ink-soft:#2c2e39;
  --paper:#f4f4ef;
  --panel:#ececE4;
  --panel-2:#e4e4da;
  --muted:#6b6d75;
  --line:rgba(22,23,29,.14);
  --line-strong:rgba(22,23,29,.28);
  --mark:#cbf23d;         /* lime highlighter */
  --mark-soft:rgba(203,242,61,.55);
  --flag:#e5484d;         /* correction/annotation red, used sparingly */

  --display:"Space Grotesk",system-ui,sans-serif;
  --serif:"Newsreader",Georgia,serif;
  --mono:"Space Mono",ui-monospace,monospace;

  --wrap:1140px;
  --gutter:clamp(20px,5vw,64px);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:19px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit}

.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}

/* ---------- annotation / label device ---------- */
.tag{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
  display:inline-flex;
  align-items:center;
  gap:.5em;
}
.tag::before{
  content:"";
  width:14px;height:1px;background:var(--ink);
  display:inline-block;opacity:.5;
}
.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  margin:0 0 18px;
}

/* ---------- highlighter signature ---------- */
.mark{
  position:relative;
  white-space:nowrap;
  z-index:0;
}
.mark::before{
  content:"";
  position:absolute;
  left:-.12em;right:-.12em;
  bottom:.04em;
  height:.62em;
  background:var(--mark);
  z-index:-1;
  transform:scaleX(0);
  transform-origin:left center;
  transform:scaleX(0) skewX(-3deg);
  border-radius:2px 4px 3px 5px;
  animation:swipe .7s cubic-bezier(.6,.02,.2,1) forwards;
  animation-delay:.35s;
}
@keyframes swipe{to{transform:scaleX(1) skewX(-3deg)}}
.mark.mark--ink{color:var(--ink)}

/* ---------- header ---------- */
.site-head{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-head .wrap{
  display:flex;align-items:center;justify-content:space-between;
  min-height:72px;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand img{width:34px;height:34px}
.brand b{
  font-family:var(--display);font-weight:700;font-size:20px;letter-spacing:-.01em;
}
.brand b span{color:var(--flag)}
nav.main{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
nav.main a{
  font-family:var(--mono);
  font-size:13px;letter-spacing:.04em;text-transform:uppercase;
  text-decoration:none;color:var(--ink-soft);
  padding:8px 12px;border-radius:6px;
  transition:background .15s,color .15s;
}
nav.main a:hover{background:var(--panel)}
nav.main a[aria-current="page"]{
  color:var(--ink);
  box-shadow:inset 0 -2px 0 var(--mark);
}

/* ---------- hero ---------- */
.hero{padding:clamp(48px,9vw,110px) 0 clamp(40px,6vw,72px)}
.hero h1{
  font-family:var(--display);
  font-weight:700;
  font-size:clamp(40px,7.4vw,86px);
  line-height:1.02;
  letter-spacing:-.03em;
  margin:0 0 28px;
  max-width:15ch;
}
.hero .lede{
  font-size:clamp(19px,2.3vw,23px);
  max-width:46ch;color:var(--ink-soft);margin:0 0 32px;
}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  font-family:var(--mono);font-size:13.5px;letter-spacing:.04em;
  text-transform:uppercase;text-decoration:none;
  display:inline-flex;align-items:center;gap:.6em;
  padding:14px 22px;border-radius:8px;border:1.5px solid var(--ink);
  transition:transform .12s,background .15s,color .15s;
}
.btn--solid{background:var(--ink);color:var(--paper)}
.btn--solid:hover{background:var(--ink-soft)}
.btn--ghost:hover{background:var(--ink);color:var(--paper)}
.btn:active{transform:translateY(1px)}
.btn .arw{transition:transform .15s}
.btn:hover .arw{transform:translate(3px,-3px)}

/* ---------- generic section ---------- */
.section{padding:clamp(48px,7vw,88px) 0;border-top:1px solid var(--line)}
.section h2{
  font-family:var(--display);font-weight:700;
  font-size:clamp(28px,4.4vw,44px);line-height:1.06;letter-spacing:-.02em;
  margin:0 0 14px;
}
.section .intro{max-width:60ch;color:var(--ink-soft);margin:0 0 40px}
.page-title{
  font-family:var(--display);font-weight:700;
  font-size:clamp(38px,6.4vw,68px);letter-spacing:-.03em;line-height:1.02;
  margin:0 0 20px;
}

/* ---------- pull quote (Malcolm X) ---------- */
.pullquote{
  border-top:1.5px solid var(--ink);
  border-bottom:1.5px solid var(--ink);
  padding:40px 0;margin:8px 0;
}
.pullquote blockquote{
  margin:0;font-family:var(--serif);font-style:italic;
  font-size:clamp(22px,3.4vw,34px);line-height:1.32;letter-spacing:-.01em;
  max-width:24ch;
}
.pullquote cite{
  display:block;margin-top:20px;font-style:normal;
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);
}

/* ---------- problems / two-up cards ---------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:14px;
  padding:32px 30px;
}
.card .index{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
  display:flex;justify-content:space-between;margin-bottom:18px;
}
.card h3{
  font-family:var(--display);font-weight:600;font-size:26px;letter-spacing:-.01em;
  margin:0 0 12px;
}
.card p{margin:0;font-size:17px;color:var(--ink-soft)}

/* ---------- projects list ---------- */
.projects{display:flex;flex-direction:column;gap:2px}
.project{
  display:grid;
  grid-template-columns:220px 1fr auto;
  gap:32px;align-items:center;
  padding:26px 8px;
  border-top:1px solid var(--line);
  text-decoration:none;color:inherit;
  transition:background .15s,padding .18s;
}
.project:last-child{border-bottom:1px solid var(--line)}
.project:hover{background:var(--panel);padding-inline:20px}
.project .thumb{
  aspect-ratio:16/10;border-radius:8px;overflow:hidden;
  background:var(--panel-2);border:1px solid var(--line);
}
.project .thumb img{width:100%;height:100%;object-fit:cover}
.project .ptype{margin-bottom:10px}
.project h3{
  font-family:var(--display);font-weight:600;
  font-size:clamp(21px,2.6vw,27px);letter-spacing:-.01em;line-height:1.15;
  margin:0 0 8px;
}
.project p{margin:0;font-size:16.5px;color:var(--ink-soft);max-width:60ch}
.project .go{
  font-family:var(--mono);font-size:22px;color:var(--ink);
  transition:transform .15s;justify-self:end;
}
.project:hover .go{transform:translate(4px,-4px);color:var(--flag)}

/* ---------- research article ---------- */
.article{max-width:760px}
.article h1{
  font-family:var(--display);font-weight:700;
  font-size:clamp(30px,4.8vw,48px);line-height:1.08;letter-spacing:-.02em;margin:0 0 24px;
}
.byline{
  font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--muted);
  margin:0 0 32px;padding-bottom:24px;border-bottom:1px solid var(--line);
}
.article p{margin:0 0 22px}
.article figure{margin:36px 0}
.article figure img{border-radius:12px;border:1px solid var(--line);width:100%}
.article figcaption{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted);
  margin-top:12px;
}
.abstract{
  background:var(--panel);border-left:3px solid var(--mark);
  border-radius:0 12px 12px 0;padding:28px 30px;margin:36px 0;
}
.abstract .lbl{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);margin:0 0 14px;
}
.abstract p{font-size:17px;margin:0}
.doi{
  font-family:var(--mono);font-size:14px;word-break:break-all;
  display:inline-flex;gap:.6em;align-items:baseline;
}
.doi a{color:var(--flag);text-underline-offset:3px}

/* ---------- team ---------- */
.team-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.member{text-align:center}
.member .avatar{
  width:100%;max-width:200px;aspect-ratio:1;margin:0 auto 18px;
  border-radius:50%;overflow:hidden;border:2px solid var(--ink);
  background:var(--panel);
}
.member .avatar img{width:100%;height:100%;object-fit:cover}
.member h3{
  font-family:var(--display);font-weight:600;font-size:20px;margin:0 0 4px;letter-spacing:-.01em;
}
.member .role{
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin:0;
}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.field{margin-bottom:20px}
.field label{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--muted);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;font-family:var(--serif);font-size:17px;color:var(--ink);
  background:var(--paper);border:1.5px solid var(--line-strong);border-radius:9px;
  padding:13px 15px;transition:border-color .15s,box-shadow .15s;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);
  box-shadow:0 0 0 4px var(--mark-soft);
}
.field textarea{resize:vertical;min-height:130px}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:6px}
.form-status{
  font-family:var(--mono);font-size:14px;margin-top:16px;display:none;
}
.form-status.show{display:block}
.info-block{margin-bottom:28px}
.info-block .k{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);margin-bottom:6px;
}
.info-block .v{font-size:20px}
.info-block .v a{text-decoration:none;box-shadow:inset 0 -2px 0 var(--mark-soft)}
.info-block .v a:hover{box-shadow:inset 0 -10px 0 var(--mark-soft)}
.socials{display:flex;gap:12px;margin-top:8px}
.socials a{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;
  text-decoration:none;border:1.5px solid var(--ink);border-radius:7px;padding:9px 14px;
  transition:background .15s,color .15s;
}
.socials a:hover{background:var(--ink);color:var(--paper)}

/* ---------- footer ---------- */
.site-foot{
  border-top:1px solid var(--line);
  margin-top:40px;padding:48px 0 40px;
  background:var(--ink);color:var(--paper);
}
.site-foot .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.site-foot .brand b{color:var(--paper)}
.site-foot .brand b span{color:var(--mark)}
.site-foot p{font-size:16px;color:rgba(244,244,239,.75);max-width:34ch;margin:16px 0 0}
.foot-col h4{
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(244,244,239,.55);margin:0 0 16px;font-weight:400;
}
.foot-col a{
  display:block;text-decoration:none;color:var(--paper);
  font-family:var(--mono);font-size:14px;margin-bottom:10px;opacity:.85;
}
.foot-col a:hover{opacity:1;color:var(--mark)}
.foot-bar{
  border-top:1px solid rgba(244,244,239,.15);margin-top:36px;padding-top:22px;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  color:rgba(244,244,239,.55);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
}

/* ---------- responsive ---------- */
@media(max-width:860px){
  body{font-size:18px}
  .grid-2{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .project{grid-template-columns:1fr;gap:16px}
  .project .thumb{max-width:100%;order:-1}
  .project .go{display:none}
  .site-foot .wrap{grid-template-columns:1fr;gap:28px}
}
@media(max-width:560px){
  .site-head .wrap{flex-wrap:wrap;min-height:0;padding-block:12px}
  nav.main{width:100%;justify-content:flex-start;margin-left:-12px}
  .row-2{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr;gap:18px}
}

/* ---------- a11y ---------- */
:focus-visible{outline:3px solid var(--flag);outline-offset:3px;border-radius:3px}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto}
  .mark::before{transform:scaleX(1) skewX(-3deg)}
}