/* ===========================================================================
   styles.css — shared layout + responsive rules for every page.
   Linked from each page's <helmet>. This is the ONE place that controls how
   the site reflows on tablets and phones.

   How it works: the multi-column layouts (nav, people grids, cards, etc.) live
   here as classes instead of inline styles, so the mobile breakpoints below
   can override them cleanly. Two breakpoints are used:
       max-width: 900px  → tablet  (people grids go 4 → 3 columns)
       max-width: 640px  → phone   (hamburger nav, everything stacks)
   =========================================================================== */

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

/* --- Top navigation ------------------------------------------------------- */
/* The bar is a flex row: logo on the left, links on the right. On phones the
   links collapse behind a ☰ button (pure CSS — a hidden checkbox toggles them). */
.nav-inner { position: relative; }
.nav-links { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.nav-toggle { display: none; }
/* the checkbox is nested inside the ☰ label, kept off-screen but toggleable */
.nav-toggle-cb { position: absolute; width: 1px; height: 1px; opacity: 0; }

@media (max-width: 640px) {
  /* the ☰ / ✕ button */
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; border-radius: 12px; cursor: pointer;
    font-size: 20px; line-height: 1; user-select: none;
    border: 1px solid rgba(57,99,175,.22); color: #16324a;
  }
  .nav-toggle::before { content: '\2630'; }                                  /* ☰ */
  .nav-inner:has(.nav-toggle-cb:checked) .nav-toggle::before { content: '\2715'; }  /* ✕ */

  /* the links, revealed as a dropdown panel under the bar when checked */
  .nav-links {
    display: none;
    position: absolute; top: calc(100% + 10px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 8px;
    padding: 12px; border-radius: 16px; z-index: 40;
    background: rgba(244,251,255,.98);
    border: 1px solid rgba(57,99,175,.14);
    box-shadow: 0 24px 50px -28px rgba(20,50,80,.55);
  }
  .nav-inner:has(.nav-toggle-cb:checked) .nav-links { display: flex; }
  .nav-links a { text-align: center; }

  /* dark variant used on the Home hero toolbar */
  .nav-bar--dark .nav-toggle { color: #bcd6ea; border-color: rgba(127,214,255,.28); }
  .nav-bar--dark .nav-links {
    background: #0a1526; border-color: rgba(127,214,255,.16);
    box-shadow: 0 24px 50px -28px rgba(0,0,0,.6);
  }
}

/* --- Page headings + header padding --------------------------------------- */
.page-title { font-size: clamp(38px, 11vw, 68px); }
.page-head { padding: 76px 32px 0; }        /* bottom padding stays inline per page */
@media (max-width: 640px) { .page-head { padding: 44px 20px 0; } }

/* --- Team: people grids, pets, bio modal ---------------------------------- */
.people-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
@media (max-width: 900px) { .people-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px) { .people-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; } }

.pets-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; }
@media (max-width: 640px) { .pets-grid { grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 10px; } }

.modal-overlay { padding: 24px; }
@media (max-width: 640px) { .modal-overlay { padding: 14px; } }

.modal-card { padding: 30px; }
@media (max-width: 640px) { .modal-card { padding: 20px; } }

.modal-grid { display: grid; grid-template-columns: 150px 1fr; gap: 24px; }
@media (max-width: 640px) { .modal-grid { grid-template-columns: 96px 1fr; gap: 16px; } }

/* --- News: year sections --------------------------------------------------- */
.news-grid { display: grid; grid-template-columns: 180px 1fr; gap: 32px; }
@media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; gap: 10px; } }

.news-year { position: sticky; top: 96px; align-self: start; }
@media (max-width: 640px) { .news-year { position: static; } }

/* --- Publications: result cards ------------------------------------------- */
.pub-card { display: grid; grid-template-columns: 150px 1fr; gap: 22px; align-items: start; }
@media (max-width: 640px) { .pub-card { grid-template-columns: 84px 1fr; gap: 14px; } }

/* --- Home: news teasers + photo reel + horizontal padding ----------------- */
.teaser-row { display: grid; grid-template-columns: 130px 1fr; gap: 20px; align-items: baseline; }
@media (max-width: 640px) { .teaser-row { grid-template-columns: 82px 1fr; gap: 12px; } }

.reel-figure { width: 320px; }
/* Show the whole photo (no cropped faces): the image is contained inside a
   fixed frame, and a blurred, zoomed copy of the same photo fills the letterbox
   so the padding looks natural. */
.reel-frame {
  position: relative; width: 100%; height: 200px; border-radius: 18px; overflow: hidden;
  display: flex; align-items: center; justify-content: center; background: #0a1830;
}
.reel-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: blur(16px) brightness(.9); transform: scale(1.15); }
.reel-fg { position: relative; max-width: 100%; max-height: 100%; width: auto; height: auto; display: block; }
@media (max-width: 640px) {
  .reel-figure { width: 66vw; max-width: 280px; }
  .reel-frame { height: 170px; }
}

/* side gutters on the Home content wrappers (vertical padding stays inline) */
.home-pad { padding-left: 40px; padding-right: 40px; }
@media (max-width: 640px) { .home-pad { padding-left: 20px; padding-right: 20px; } }

/* --- Contact: address card beside the building photo ---------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }

/* --- Research: funder logo wall ------------------------------------------- */
/* Centered, wrapping cards of uniform height; each logo is capped to a common
   height so the mismatched source logos read as a balanced wall. */
.funder-grid { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.funder-cell {
  flex: 1 1 190px; max-width: 250px;
  background: #fff; border: 1px solid rgba(57,99,175,.12); border-radius: 16px;
  height: 118px; display: flex; align-items: center; justify-content: center; padding: 20px 24px;
}
.funder-cell img { max-width: 100%; max-height: 62px; width: auto; height: auto; object-fit: contain; display: block; }
@media (max-width: 640px) {
  .funder-grid { gap: 12px; }
  .funder-cell { flex-basis: 42%; height: 92px; padding: 14px 16px; }
  .funder-cell img { max-height: 46px; }
}