/* ============================================================
   MAVI Lab — stylesheet
   Palette is defined once here. Change these six values and the
   whole site follows.
   ============================================================ */

:root {
  /* --- colour tokens ------------------------------------- */
  --navy:    #0B1E33;  /* reading-room dark: hero, footer      */
  --navy-2:  #123252;  /* raised surface on dark               */
  --blue:    #12508C;  /* primary: headings, buttons           */
  --blue-lt: #2B7FC4;  /* links, hover                         */
  --beam:    #3FBBD8;  /* accent: crosshairs, scan line, rules */
  --paper:   #F4F8FC;  /* page background                      */
  --white:   #FFFFFF;
  --slate:   #5B7089;  /* muted body text                      */
  --line:    #D9E4F0;  /* hairlines on light                   */

  /* --- type ---------------------------------------------- */
  --display: "Space Grotesk", "Pretendard", sans-serif;
  --body:    "Pretendard", "Space Grotesk", -apple-system, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, monospace;

  /* --- rhythm -------------------------------------------- */
  --shell:   1180px;
  --gutter:  clamp(20px, 5vw, 48px);
  --band-y:  clamp(64px, 9vw, 120px);
  --radius:  4px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--navy);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a   { color: var(--blue-lt); text-decoration: none; }
a:hover { color: var(--blue); }

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

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

.skip {
  position: absolute; left: -9999px;
  background: var(--navy); color: var(--white);
  padding: 10px 16px; z-index: 999;
}
.skip:focus { left: 12px; top: 12px; }

/* ============================================================
   Type scale
   ============================================================ */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }

p { margin: 0 0 1em; }

.lede { font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--slate); max-width: 62ch; }

/* Eyebrow: a mono label with a registration-mark glyph. Used to
   open every section, so the reader always knows where they are. */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
}
.eyebrow::before {
  content: "+";
  color: var(--beam);
  font-size: 1rem;
  line-height: 1;
}
.eyebrow--onDark { color: var(--beam); }
.eyebrow--onDark::before { color: var(--white); }

/* ============================================================
   Header
   ============================================================ */

.masthead {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11, 30, 51, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(63, 187, 216, 0.22);
}

.masthead__row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 68px;
}

.brand { display: flex; align-items: baseline; gap: 10px; color: var(--white); }
.brand:hover { color: var(--white); }
.brand__icon { width: 26px; height: 26px; align-self: center; flex: none; }
.brand__mark {
  font-family: var(--display); font-weight: 700; font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.brand__sub {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--beam);
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: rgba(255,255,255,0.72);
  padding: 8px 12px; border-radius: var(--radius);
}
.nav a:hover, .nav a[aria-current="page"] {
  color: var(--white); background: rgba(63,187,216,0.16);
}

.navToggle {
  display: none; background: none; border: 1px solid rgba(255,255,255,0.28);
  color: var(--white); border-radius: var(--radius); padding: 8px 12px;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em;
  cursor: pointer;
}

@media (max-width: 620px) {
  .brand__sub { display: none; }
}

@media (max-width: 860px) {
  .navToggle { display: block; }
  .nav {
    position: absolute; inset: 68px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy); padding: 8px var(--gutter) 20px;
    border-bottom: 1px solid rgba(63,187,216,0.22);
  }
  .nav[hidden] { display: none; }
  .nav a { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.07); }
}

/* ============================================================
   Hero — the signature. A coordinate graticule (the shared visual
   grammar of a DICOM viewer and a map tile server) with a slow
   scan sweep across it.
   ============================================================ */

.hero {
  position: relative; overflow: hidden;
  background: var(--navy);
  color: var(--white);
  padding-block: clamp(88px, 15vw, 168px);
}

.hero__graticule {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right,  rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.055) 1px, transparent 1px),
    linear-gradient(to right,  rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px;
  -webkit-mask-image: radial-gradient(120% 90% at 22% 40%, #000 25%, transparent 78%);
          mask-image: radial-gradient(120% 90% at 22% 40%, #000 25%, transparent 78%);
}

.hero__scan {
  position: absolute; left: 0; right: 0; top: -220px; height: 220px;
  pointer-events: none;
  background: linear-gradient(to bottom,
    transparent, rgba(63,187,216,0.13) 55%, rgba(63,187,216,0.30) 88%, transparent);
  animation: sweep 11s linear infinite;
}
@keyframes sweep {
  from { transform: translateY(0); }
  to   { transform: translateY(calc(100vh + 220px)); }
}

.hero__tick {
  position: absolute; color: var(--beam); opacity: 0.5;
  font-family: var(--mono); font-size: 0.9rem; line-height: 1;
  pointer-events: none;
}

.hero__body { position: relative; }

.hero h1 { max-width: 20ch; margin-bottom: 40px; }
.hero h1 em {
  font-style: normal;
  color: var(--beam);
}
.hero .lede { color: rgba(255,255,255,0.74); margin: 0; }

/* The headline states the thesis; this split does the work underneath it —
   the argument on the left, the two domains it applies to on the right. */
.hero__split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 76px);
  align-items: start;
}

.domain { padding-top: 15px; border-top: 1px solid rgba(255,255,255,0.18); }
.domain + .domain { margin-top: 26px; }
.domain__label {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--beam);
  display: flex; align-items: baseline; gap: 10px; margin-bottom: 7px;
}
.domain__label span { color: rgba(255,255,255,0.34); }
.domain p { color: rgba(255,255,255,0.66); font-size: 0.93rem; line-height: 1.6; margin: 0; }

@media (max-width: 860px) {
  .hero__split { grid-template-columns: 1fr; gap: 34px; }
}

.hero__meta {
  display: flex; flex-wrap: wrap; gap: 10px 28px;
  margin-top: 40px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.14);
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
}
.hero__meta b { color: var(--beam); font-weight: 500; }
.hero__meta a {
  color: inherit; border-bottom: 1px solid rgba(255,255,255,0.18);
  padding-bottom: 2px; transition: border-color 0.2s ease;
}
.hero__meta a:hover { color: var(--white); border-bottom-color: var(--beam); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__scan { animation: none; opacity: 0.35; top: 30%; }
  * { transition: none !important; }
}

/* ============================================================
   Bands (section shells)
   ============================================================ */

.band { padding-block: var(--band-y); }
.band--tint { background: var(--white); }
.band--dark { background: var(--navy); color: var(--white); }
.band--dark h2, .band--dark h3 { color: var(--white); }
.band--dark .lede { color: rgba(255,255,255,0.7); }

.band__head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; flex-wrap: wrap; margin-bottom: 44px;
}
.band__head h2 { margin: 0; }

.moreLink {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.1em;
  text-transform: uppercase; white-space: nowrap;
  border-bottom: 1px solid currentColor; padding-bottom: 2px;
}

/* ============================================================
   News
   ============================================================ */

.newsGrid {
  display: grid; gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.newsCard {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.newsCard:hover {
  transform: translateY(-4px);
  border-color: var(--blue-lt);
  box-shadow: 0 14px 34px rgba(11,30,51,0.10);
}

.newsCard__thumb {
  aspect-ratio: 2 / 1; background: var(--navy-2);
  position: relative; overflow: hidden;
}
.newsCard__thumb img { width: 100%; height: 100%; object-fit: cover; }
.newsCard__thumb::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right,  rgba(63,187,216,0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(63,187,216,0.16) 1px, transparent 1px);
  background-size: 22px 22px;
}

.newsCard__body { padding: 20px 22px 24px; }

.tagRow {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px;
}
.tag {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--blue);
  background: rgba(18,80,140,0.08);
  padding: 4px 9px; border-radius: 2px;
}

.newsCard h3 { margin-bottom: 8px; }
.newsCard h3 a { color: var(--navy); }
.newsCard h3 a:hover { color: var(--blue); }
.newsCard p { color: var(--slate); font-size: 0.92rem; margin: 0; }

.newsCard time {
  display: block; margin-top: 14px;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em;
  color: var(--slate);
}

/* ============================================================
   Research
   ============================================================ */

.researchList { display: grid; gap: 1px; background: rgba(255,255,255,0.14); }

.researchItem {
  background: var(--navy);
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 8px 28px;
  padding: 32px 4px;
  align-items: start;
}
.researchItem__id {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em;
  color: var(--beam); padding-top: 6px;
}
.researchItem h3 { margin-bottom: 10px; font-size: 1.4rem; }
.researchItem p { color: rgba(255,255,255,0.66); margin: 0 0 14px; max-width: 68ch; }

.chipRow { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em;
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(63,187,216,0.4);
  padding: 3px 10px; border-radius: 100px;
}

@media (max-width: 640px) {
  .researchItem { grid-template-columns: 1fr; padding: 26px 4px; }
  .researchItem__id { padding-top: 0; }
}

/* ============================================================
   Publications
   ============================================================ */

.pubYear {
  font-family: var(--display); font-size: 2rem; font-weight: 600;
  color: var(--blue); letter-spacing: -0.02em;
  padding-bottom: 10px; margin: 56px 0 8px;
  border-bottom: 2px solid var(--beam);
}
.pubYear:first-of-type { margin-top: 0; }

.pub {
  display: grid; grid-template-columns: 190px 1fr; gap: 26px;
  padding: 28px 0; border-bottom: 1px solid var(--line);
  align-items: start;
}
.pub__thumb {
  aspect-ratio: 16 / 10; border-radius: var(--radius);
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%);
  overflow: hidden;
}
.pub__thumb img { width: 100%; height: 100%; object-fit: cover; }

.pub h3 { margin-bottom: 6px; font-size: 1.12rem; }
.pub__authors { font-size: 0.92rem; color: var(--slate); margin-bottom: 6px; }
.pub__authors strong { color: var(--navy); font-weight: 600; }
.pub__authors sup { font-size: 0.68em; line-height: 0; }
.pub__venue {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.05em;
  color: var(--blue); margin-bottom: 3px;
}
/* Indexing and impact numbers sit under the venue in a quieter register —
   present for the readers who look for them, out of the way for those who don't. */
.pub__metrics {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.03em;
  color: var(--slate); margin-bottom: 10px;
}
.pub__note {
  font-size: 0.78rem; color: var(--slate); margin-bottom: 10px;
}
.pub__links { display: flex; flex-wrap: wrap; gap: 8px; }
.pub__links a {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line); color: var(--blue);
  padding: 4px 11px; border-radius: 2px;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
.pub__links a:hover {
  background: var(--blue); border-color: var(--blue); color: var(--white);
}

@media (max-width: 640px) {
  .pub { grid-template-columns: 1fr; gap: 16px; }
  .pub__thumb { max-width: 260px; }
}

/* ============================================================
   Projects

   A funded project is a span of time before it is anything else,
   so the period takes the left rail and reads as a strip of tape:
   start, a drop, end. Scanning the column tells you what is live.
   ============================================================ */

.projectGroup { margin-bottom: 60px; }
.projectGroup:last-child { margin-bottom: 0; }
.projectGroup > h3 {
  font-family: var(--mono); font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--blue);
  padding-bottom: 12px; margin-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.project {
  display: grid; grid-template-columns: 132px 1fr; gap: 28px;
  padding: 30px 0; border-bottom: 1px solid var(--line);
  align-items: start;
}

.project__period {
  font-family: var(--mono); font-size: 0.8rem; line-height: 1.5;
  color: var(--slate); padding-top: 3px;
}
.project__period b {
  display: block; color: var(--blue); font-weight: 500; letter-spacing: 0.04em;
}
.project__period span { display: block; color: var(--beam); line-height: 1.2; }

.project h3 { font-size: 1.08rem; margin-bottom: 6px; }
.project__agency {
  font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.03em;
  color: var(--blue); margin-bottom: 10px;
}
.project__summary { color: var(--slate); font-size: 0.94rem; margin-bottom: 8px; max-width: 66ch; }
.project__partners { font-size: 0.84rem; color: var(--slate); margin-bottom: 12px; }
.project__meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

.role {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--white); background: var(--blue);
  padding: 3px 10px; border-radius: 2px;
}
.role--copi, .role--participant { background: var(--slate); }

.status {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--slate);
  display: inline-flex; align-items: center; gap: 7px;
}
.status::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--slate);
}
.status--ongoing { color: var(--blue); }
.status--ongoing::before { background: var(--beam); box-shadow: 0 0 0 3px rgba(63,187,216,0.22); }

.chip--light {
  color: var(--slate); border-color: var(--line);
}

@media (max-width: 640px) {
  .project { grid-template-columns: 1fr; gap: 12px; padding: 24px 0; }
  .project__period { display: flex; gap: 8px; padding-top: 0; }
  .project__period span { transform: rotate(-90deg); }
}

/* ============================================================
   Team
   ============================================================ */

.teamGroup { margin-bottom: 64px; }
.teamGroup > h3 {
  font-family: var(--mono); font-size: 0.8rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--blue);
  padding-bottom: 12px; margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.peopleGrid {
  display: grid; gap: 32px 26px;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.person__photo {
  aspect-ratio: 3 / 4; border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(160deg, var(--navy-2), var(--blue));
  margin-bottom: 14px; position: relative;
}
.person__photo img { width: 100%; height: 100%; object-fit: cover; }
.person__photo::after {
  content: ""; position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(11,30,51,0.10);
  border-radius: var(--radius);
}
.person__role {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--beam); margin-bottom: 4px;
}
.person__name {
  font-family: var(--display); font-weight: 600; font-size: 1.02rem;
  margin-bottom: 2px;
}
.person__name a { color: inherit; }
.person__name a:hover { color: var(--blue-lt); }
.person__kr { font-size: 0.86rem; color: var(--slate); margin-bottom: 6px; }
.person__topic { font-size: 0.82rem; color: var(--slate); line-height: 1.5; }

/* Alumni read as a list, not a gallery — no photos to maintain. */
.alumniList {
  columns: 3 240px; column-gap: 40px;
  font-size: 0.92rem;
}
.alumniList li {
  break-inside: avoid; margin-bottom: 12px; list-style: none;
}
.alumniList { padding: 0; margin: 0; }
.alumniList span {
  display: block; font-family: var(--mono); font-size: 0.72rem;
  color: var(--slate); letter-spacing: 0.04em;
}

/* ============================================================
   Contact + footer
   ============================================================ */

.contactGrid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px;
  align-items: start;
}
@media (max-width: 800px) { .contactGrid { grid-template-columns: 1fr; } }

.contactGrid iframe {
  width: 100%; height: 340px; border: 0;
  border-radius: var(--radius);
  filter: grayscale(0.35) contrast(1.05);
}

.addr { font-style: normal; line-height: 1.9; }
.addr dt {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--beam); margin-top: 20px;
}
.addr dd { margin: 0; color: rgba(255,255,255,0.82); }
.addr dd a { color: var(--white); border-bottom: 1px solid var(--beam); }

.addr--light dt { color: var(--blue); }
.addr--light dd { color: var(--navy); }
.addr--light dd a { color: var(--blue); border-bottom-color: var(--blue-lt); }

.colophon {
  background: var(--navy); color: rgba(255,255,255,0.45);
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-block: 28px;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em;
}
.colophon .shell {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.colophon a { color: rgba(255,255,255,0.6); }
.colophon a:hover { color: var(--beam); }

/* ============================================================
   Page header for interior pages
   ============================================================ */

.pageHead {
  background: var(--navy); color: var(--white);
  padding-block: clamp(56px, 8vw, 96px);
  position: relative; overflow: hidden;
}
.pageHead .hero__graticule {
  -webkit-mask-image: radial-gradient(100% 120% at 10% 50%, #000 20%, transparent 80%);
          mask-image: radial-gradient(100% 120% at 10% 50%, #000 20%, transparent 80%);
}
.pageHead h1 { margin-bottom: 12px; font-size: clamp(2rem, 5vw, 3.2rem); }
.pageHead .lede { color: rgba(255,255,255,0.72); }
.pageHead > .shell { position: relative; }