/* ============================================================
   HOME — geometry-faithful styles, measured from XD HOME–2
   Artboard: 1600 × 5572 · left margin 145 · right edge 1455
   ============================================================ */

/* grid reference: 1600px design width. Percentages = px/1600. */

.home main { overflow-x: clip; }

/* ---------- hero ---------- */
/* Materials y≈290 top, art block x879 w656 y294 h726 */
.hero { position: relative; padding: 150px 0 240px; }
.hero h1 { font-size: clamp(64px, 7.19vw, 115px); font-weight: 300; line-height: 1.0; }
.hero h1 .w1 { color: var(--blue-700); display: block; }
.hero h1 .w2 { color: var(--blue-500); display: block; margin-left: clamp(60px, 9.94vw, 159px); }

.hero-lede { max-width: 545px; margin-top: 56px; font-size: 22px; }
.hero-lede p + p { margin-top: 1em; }

/* compact CTA strip: x146 y789 w263 h28, 20px text + small cube */
.cta-strip {
  display: inline-flex; align-items: center; gap: 14px;
  background: var(--blue-200); color: var(--blue-700);
  font-size: 20px; line-height: 28px;
  padding: 0 10px; margin-top: 64px;
}
.cta-strip svg { width: 15px; height: 15px; }
.cta-strip:hover { background: var(--blue-300); opacity: 1; }

/* layered-planes art (real XD vector, with halftone image fills):
   XD x879 y294 w656 h726 on a 1600-wide artboard.
   left = 879/1600 = 54.9% ; width = 656/1600 = 41%.
   y294 sits ~79px above "Materials" (y373); hero padding-top 150 → top ≈ -56. */
.hero-art {
  position: absolute; left: 54.9%; top: -56px;
  width: 41%; max-width: 656px; height: auto; pointer-events: none;
}

/* ---------- The Group ---------- */
/* photo x0→879 (bleeds left), y1473 h646; right col x913 */
.group-section { padding-top: 110px; }
.group-section .section-title { margin-bottom: 100px; }

.group-layout { position: relative; }
.group-photo-bleed {
  width: 57.1%;           /* 913/1600 incl. gap */
  margin-left: calc(-1 * (50vw - 50%));   /* bleed to viewport left edge */
  padding-left: 0;
}
.group-photo-bleed img { width: 100%; height: auto; display: block; }

.group-members {
  position: absolute; left: 60%; top: 0; width: 36%;
}
.group-members h3 { font-size: 22px; font-weight: 500; margin-bottom: 28px; }
.group-members li { font-size: 22px; padding: 5px 0; list-style: none; }

/* play-the-video banner: x303 y2119 (= photo bottom edge), 384×76 */
.play-banner { margin-left: 19%; margin-top: 0; }   /* x303/1600 */

/* leader row: portrait x625 w350 h455 · text col x1012 w~420 · blue bar x815 y2000 384×76 */
.leader-row {
  position: relative;
  display: flex; gap: 0;
  margin-top: 120px;
  min-height: 455px;
}
.leader-portrait {
  margin-left: 36.7%;     /* 625-145 = 480 /1310 */
  width: 350px; height: 455px; object-fit: cover; position: relative; z-index: 2;
}
.leader-bar {
  position: absolute; left: 51.2%; top: 276px;     /* x815 y2105-1829 */
  width: 384px; height: 76px; background: var(--blue-300); z-index: 1;
}
.leader-text { margin-left: 4.6%; width: 33%; position: relative; z-index: 2; }
.leader-text h3 { font-size: 22px; font-weight: 500; margin-bottom: 30px; }
.leader-text .who { font-size: 22px; }
.leader-text p { font-size: 22px; font-weight: 600; margin-top: 22px; }
.leader-text .links { margin-top: 40px; display: grid; gap: 16px; justify-items: start; }
.leader-text .links .cv { letter-spacing: .5px; }
.link-hl { background: var(--blue-200); padding: 1px 8px; }

/* ---------- News ---------- */
/* left col x145 w734 · right col x975 w480 */
.news-section { padding-top: 160px; }
.news-section .section-title { margin-bottom: 120px; }
.news-cols { display: grid; grid-template-columns: 56% 36.6%; gap: 7.4%; align-items: start; }

.news-cols h3 { font-size: 33px; font-weight: 600; margin-bottom: 50px; }
.news-card { margin-bottom: 100px; }
.news-card img { width: 100%; margin-bottom: 56px; }   /* img 734×509 */
.news-card h4 { font-size: 33px; font-weight: 400; margin-bottom: 16px; }
.news-card p  { font-size: 22px; font-weight: 500; max-width: 700px; }
.news-card .read-more { display: inline-block; margin-top: 18px; font-size: 20px; }
.archive-row { margin-top: 44px; text-align: right; }   /* banner x495 → right side of col */

/* tweets col */
.tweets-box {
  background: var(--blue-200);
  padding: 30px 36px 36px;
  margin-bottom: 38px;
}
.tweets-box.intro p { font-size: 22px; }
.tweets-box.intro .handle { font-size: 33px; display: block; margin: 16px 0 10px; }
.tweets-box.intro .tags { font-size: 33px; color: var(--blue-500); line-height: 1.35; }

.tweet-card { min-height: 380px; position: relative; display: block; gap: 0; }  /* kill style.css flex */
.tweet-card .x-logo { width: 34px; height: 34px; margin: 0 auto 26px; display: block; }
.tweet-head { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 26px; }
.tweet-head img.mini-logo,
.tweet-card img.mini-logo { width: 50px; height: auto; border-radius: 0; }      /* kill style.css 72px circle */
.tweet-head .name { font-size: 26px; font-weight: 500; line-height: 1.15; }
.tweet-head .ago  { font-size: 14px; font-weight: 500; color: var(--blue-500); }
.tweet-card .body { font-size: 22px; font-weight: 600; }
.tweet-card .tags { font-size: 15px; color: var(--blue-500); margin-top: 22px; }

/* ---------- footer CTA ---------- */
.footer-cta { padding: 150px 0 0; max-width: none; }   /* XD: single line to x≈1430 */

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero-art { opacity: .3; }
  .group-members { position: static; width: auto; margin-top: 48px; }
  .group-photo-bleed { width: 100%; }
  .leader-row { flex-direction: column; min-height: 0; }
  .leader-portrait { margin-left: 0; }
  .leader-bar { display: none; }
  .leader-text { margin-left: 0; width: auto; margin-top: 40px; }
  .play-banner { margin-left: 0; }
  .news-cols { grid-template-columns: 1fr; gap: 64px; }
}
@media (max-width: 720px) {
  .hero { padding: 70px 0 90px; }
  .hero h1 { font-size: clamp(44px, 13vw, 64px); }
  .hero h1 .w2 { margin-left: 24px; }
  .hero-art { display: none; }
  .footer-cta { font-size: 36px; }
  .banner-btn { font-size: 24px; height: 60px; }
}

/* ---------- latest papers sidebar (replaces tweets) ---------- */
.paper-card { display: block; text-decoration: none; }
.paper-card .pc-year { font-size: 15px; font-weight: 600; color: var(--blue-500); letter-spacing: .5px; }
.paper-card .pc-title { font-size: 22px; font-weight: 600; margin-top: 12px; }
.paper-card .pc-src { font-size: 15px; color: var(--blue-500); margin-top: 16px; }
.paper-card .pc-src em { font-style: normal; font-weight: 600; }
.paper-card:hover { background: var(--blue-300); opacity: 1; }
.all-pubs { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; margin-top: 6px; }
.all-pubs .icon-corner { width: 12px; height: 12px; stroke: var(--blue-700); fill: none; stroke-width: 1.4; }