/* P10-T02 Home: shared design-system layer, scoped to the front page. */
body.home {
  --iwut-home-navy: #16295A;
  --iwut-home-deep: #0A1024;
  --iwut-home-turquoise: #12938C;
  --iwut-home-gold: #C0A165;
  --iwut-home-paper: #F6F7FA;
  --iwut-home-line: #D8DDE8;
  background: var(--iwut-home-paper);
}

body.home main.wp-block-group > .iwut-home-content > .block {
  position: relative;
  isolation: isolate;
  color: var(--iwut-home-deep);
}

body.home .sec-title {
  position: relative;
  width: fit-content;
  max-width: 100%;
  color: var(--iwut-home-navy);
  letter-spacing: -.02em;
  margin-block: 0 30px;
}

body.home .hero-card {
  border-inline-start: 3px solid var(--iwut-home-gold);
  background: color-mix(in srgb, var(--iwut-home-deep) 84%, transparent);
  box-shadow: 12px 12px 0 rgba(18,147,140,.55);
}

body.home #news {
  background-color: var(--iwut-home-paper);
  background-image: url("svg/girih/girih-strap-interlace.svg");
  background-size: 150px 150px;
  background-repeat: repeat;
  background-blend-mode: soft-light;
}

body.home #news::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: var(--iwut-home-turquoise);
  -webkit-mask: url("svg/girih/girih-strap-interlace.svg") center / 150px 150px repeat;
  mask: url("svg/girih/girih-strap-interlace.svg") center / 150px 150px repeat;
  opacity: .035;
  pointer-events: none;
}

body.home #courses { background: #fff; }
body.home #research {
  background: var(--iwut-home-navy);
  color: #fff;
  background-image: none;
}
body.home #research::before,
body.home #research::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  height: 20px;
  background: var(--iwut-home-gold);
  -webkit-mask: url("svg/border/border-diamond-star.svg") center / auto 100% repeat-x;
  mask: url("svg/border/border-diamond-star.svg") center / auto 100% repeat-x;
  opacity: .34;
  pointer-events: none;
}
body.home #research::before { top: 0; }
body.home #research::after { bottom: 0; }
body.home #research .sec-title,
body.home #research .res-tx h3,
body.home #research .res-tx h3 a { color: #fff; }
body.home #research .res-tx p { color: rgba(255,255,255,.76); }
body.home #research ul.res-card > li { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); }

body.home #life { background-color: var(--iwut-home-deep); background-image: none; }
body.home #life .sec-title { color: #fff; }
body.home #coop { background: #fff; }
body.home #stats { background: var(--iwut-home-navy); }
body.home #stats,
body.home #stats .sec-title,
body.home #stats .stats,
body.home #stats .stats b,
body.home #stats .stats span,
body.home #stats .asof { color: #fff; }
body.home #people { background: var(--iwut-home-paper); }
body.home #visit { background: #fff; }

body.home .news-card,
body.home .course-tiles .wp-block-post,
body.home ul.res-card > li,
body.home ul.tile > li.wp-block-post {
  border: 1px solid var(--iwut-home-line);
  transition: transform 240ms cubic-bezier(.2,.8,.2,1), box-shadow 240ms cubic-bezier(.2,.8,.2,1), border-color 180ms ease;
}

body.home .news-card:hover,
body.home .course-tiles .wp-block-post:hover,
body.home ul.res-card > li:hover,
body.home ul.tile > li.wp-block-post:hover {
  border-color: var(--iwut-home-turquoise);
  box-shadow: 0 16px 34px rgba(10,16,36,.14);
  transform: translateY(-4px);
}

/* Home sequence: keep Courses between Research and Student Life. */
body.home .iwut-home-content { display: flex; flex-direction: column; }
body.home .iwut-home-content > #home { order: 1; }
body.home .iwut-home-content > #news { order: 2; }
body.home .iwut-home-content > #research { order: 3; }
body.home .iwut-home-content > #courses { order: 4; }
body.home .iwut-home-content > #life { order: 5; }
body.home .iwut-home-content > #coop { order: 6; }
body.home .iwut-home-content > #stats { order: 7; }
body.home .iwut-home-content > #people { order: 8; }
body.home .iwut-home-content > #visit { order: 9; }

/* Academic panel navigation. */
body.home .stage-pages { gap: 7px; padding: 6px 8px; border: 1px solid rgba(192,161,101,.5); background: rgba(10,16,36,.46); }
body.home .stage-pages [role="tab"] { display: grid; place-items: center; width: 28px; height: 28px; padding: 0; border: 1px solid rgba(255,255,255,.42); color: #fff; font: 600 12px/1 "IWUT Inter",sans-serif; opacity: .78; transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease, transform 120ms ease; }
body.home .stage-pages [role="tab"]:hover,
body.home .stage-pages [role="tab"]:focus-visible { border-color: var(--iwut-home-gold); color: #fff; transform: translateY(-1px); }
body.home .stage-pages [role="tab"][aria-selected="true"] { background: var(--iwut-home-gold); border-color: var(--iwut-home-gold); color: var(--iwut-home-deep); opacity: 1; }
body.home .stage-pages .pg-next { width: 28px; height: 28px; padding: 0; color: var(--iwut-home-gold); }

/* Repeating reveal for the people cards, driven by IntersectionObserver. */
body.home .people-lead,
body.home .people-second {
  transition: opacity 520ms cubic-bezier(.2,.8,.2,1), transform 520ms cubic-bezier(.2,.8,.2,1), box-shadow 240ms ease, border-color 180ms ease;
  border: 1px solid transparent;
}
body.home .people-lead img,
body.home .people-second img { transition: transform 420ms cubic-bezier(.2,.8,.2,1), filter 240ms ease; }
body.home .people-lead:hover,
body.home .people-second:hover,
body.home .people-lead:focus-visible,
body.home .people-second:focus-visible {
  border-color: var(--iwut-home-turquoise);
  box-shadow: 18px 18px 0 var(--iwut-home-turquoise), 0 18px 34px rgba(10,16,36,.16);
  transform: translateY(-6px);
}
body.home .people-lead:hover img,
body.home .people-second:hover img,
body.home .people-lead:focus-visible img,
body.home .people-second:focus-visible img { transform: scale(1.025); filter: saturate(1.06) contrast(1.03); }
body.home .people-lead:not(.is-revealed),
body.home .people-second:not(.is-revealed) { opacity: 1; transform: translateY(18px); }
body.home .people-lead.is-revealed,
body.home .people-second.is-revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  body.home .news-card:hover,
  body.home .course-tiles .wp-block-post:hover,
  body.home ul.res-card > li:hover,
  body.home ul.tile > li.wp-block-post:hover,
  body.home .people-lead:not(.is-revealed),
  body.home .people-second:not(.is-revealed),
  body.home .people-lead:hover,
  body.home .people-second:hover,
  body.home .people-lead:focus-visible,
  body.home .people-second:focus-visible { transform: none; opacity: 1; box-shadow: 14px 14px 0 #087f91; }
  body.home .people-lead:hover img,
  body.home .people-second:hover img,
  body.home .people-lead:focus-visible img,
  body.home .people-second:focus-visible img { transform: none; filter: none; }
}