/* ==========================================================================
   OISMUN 2027: components
   One block per component. Class prefixes: c- component, l- layout, t- type, u- utility.
   The header/nav use WordPress' own menu classes (menu-item, current-menu-item,
   menu-item-has-children, sub-menu) so wp_nav_menu() output is styled directly.
   ========================================================================== */

/* ==== Buttons ============================================================== */
.c-btn {
  --btn-bg: var(--oismun-navy);
  --btn-fg: #fff;
  --btn-border: var(--oismun-navy);
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6em;
  min-height: 2.9rem; padding: 0.7rem 1.35rem;
  border: 2px solid var(--btn-border); border-radius: var(--radius-pill);
  background: var(--btn-bg); color: var(--btn-fg);
  font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 700; letter-spacing: 0.02em;
  text-decoration: none; line-height: 1.2; text-align: center;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out),
              border-color var(--dur) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.c-btn:hover { --btn-bg: var(--oismun-royal); --btn-border: var(--oismun-royal); }
.c-btn:active { transform: translateY(1px); }
.c-btn--outline { --btn-bg: transparent; --btn-fg: var(--oismun-navy); }
.c-btn--outline:hover { --btn-bg: var(--oismun-navy); --btn-fg: #fff; --btn-border: var(--oismun-navy); }
.c-btn--light { --btn-bg: #fff; --btn-fg: var(--oismun-navy); --btn-border: #fff; }
.c-btn--light:hover { --btn-bg: var(--oismun-light-blue); --btn-border: var(--oismun-light-blue); }
.c-btn--ghost-light { --btn-bg: transparent; --btn-fg: #fff; --btn-border: rgba(255, 255, 255, 0.6); }
.c-btn--ghost-light:hover { --btn-bg: rgba(255, 255, 255, 0.12); --btn-border: #fff; }
.c-btn--small { min-height: 2.4rem; padding: 0.45rem 1rem; font-size: var(--text-xs); }
.c-btn[aria-disabled="true"] { opacity: 0.55; pointer-events: none; }
.c-arrow { width: 1.05em; height: 1.05em; flex: none; transition: transform var(--dur) var(--ease-out); }
a:hover > .c-arrow, button:hover > .c-arrow, a:focus-visible > .c-arrow { transform: translateX(4px); }

.c-textlink {
  display: inline-flex; align-items: center; gap: 0.4em; color: var(--oismun-royal);
  font-weight: 700; font-size: var(--text-sm); text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1.5px no-repeat;
  transition: background-size var(--dur) var(--ease-out);
}
.c-textlink:hover, .c-textlink:focus-visible { background-size: 100% 1.5px; }

/* ==== Header ================================================================ */
.c-header { position: relative; z-index: var(--z-header); }
.c-header__brand { display: none; }
@media (min-width: 62em) {
  .c-header__brand { display: flex; justify-content: center; padding-top: clamp(1.25rem, 2vw, 2rem); padding-bottom: 0.5rem; }
  .c-header__logo { display: block; width: var(--header-logo-w); transition: opacity var(--dur) var(--ease-out); }
  .c-header__logo:hover { opacity: 0.85; }
}

.c-navbar {
  position: sticky; top: 0; z-index: var(--z-header);
  background: color-mix(in srgb, var(--oismun-ice) 94%, transparent);
  -webkit-backdrop-filter: saturate(1.3) blur(10px); backdrop-filter: saturate(1.3) blur(10px);
  border-bottom: 1px solid var(--oismun-line);
  transition: box-shadow var(--dur) var(--ease-out);
}
.c-navbar.is-stuck { box-shadow: var(--shadow-sm); }
.c-navbar__inner {
  display: flex; align-items: center; gap: var(--space-3);
  min-height: var(--navbar-h);
  width: min(100% - 2 * var(--gutter), var(--container-wide)); margin-inline: auto;
}
.c-navbar__mark { display: block; width: 8.5rem; margin-right: auto; }       /* small logo (phones; desktop when stuck) */
.c-navbar__mark img { width: 100%; }

.c-navbar__toggle, .c-search-toggle {
  display: inline-grid; place-items: center; width: 2.75rem; height: 2.75rem;
  border: 0; border-radius: var(--radius-pill); background: transparent; color: var(--oismun-navy);
  transition: background-color var(--dur-fast) var(--ease-out);
}
.c-navbar__toggle:hover, .c-search-toggle:hover { background: var(--oismun-light-blue); }
.c-navbar__toggle svg, .c-search-toggle svg { width: 1.5rem; height: 1.5rem; }
.c-navbar__toggle .icon-close { display: none; }
.c-navbar__toggle[aria-expanded="true"] .icon-open { display: none; }
.c-navbar__toggle[aria-expanded="true"] .icon-close { display: block; }

/* -- nav: phones (a panel under the bar) -- */
.c-nav { display: none; position: absolute; left: 0; right: 0; top: 100%;
  background: var(--oismun-ice); border-bottom: 1px solid var(--oismun-line); box-shadow: var(--shadow-md);
  max-height: calc(100vh - var(--navbar-h)); overflow-y: auto; }
.c-nav.is-open { display: block; animation: nav-in var(--dur) var(--ease-out); }
@keyframes nav-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.c-nav ul { list-style: none; margin: 0; padding: 0; }
.c-nav > ul { padding: var(--space-2) var(--gutter) var(--space-5); }
.c-nav .menu-item { position: relative; border-bottom: 1px solid var(--oismun-line); }
.c-nav a, .c-nav .c-nav__parent {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  min-height: 3rem; padding: 0.55rem 0; border: 0; background: none;
  font-family: var(--font-sans); font-size: 1.0625rem; font-weight: 600; color: var(--oismun-navy);
  text-decoration: none; text-align: left;
}
.c-nav .current-menu-item > a, .c-nav .current-menu-ancestor > .c-nav__parent { color: var(--oismun-royal); }
.c-nav .current-menu-item > a::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--oismun-accent); margin-right: 0.6rem; order: -1; }
.c-nav .current-menu-item > a { justify-content: flex-start; }
.c-nav__chevron { width: 1rem; height: 1rem; transition: transform var(--dur) var(--ease-out); }
.c-nav__parent[aria-expanded="true"] .c-nav__chevron { transform: rotate(180deg); }
.c-nav .sub-menu { display: none; padding: 0 0 var(--space-3) var(--space-4); }
.c-nav .sub-menu.is-open { display: block; }
.c-nav .sub-menu .menu-item { border: 0; }
.c-nav .sub-menu a { min-height: 2.6rem; font-weight: 500; font-size: 1rem; color: var(--oismun-text-soft); }

/* -- nav: desktop (centred links under the logo, as in the concepts) -- */
@media (min-width: 62em) {
  .c-navbar__toggle { display: none; }
  .c-navbar__mark { position: absolute; left: var(--gutter); width: 7.5rem; opacity: 0; visibility: hidden;
    transform: translateY(-4px); transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility var(--dur); }
  .c-navbar.is-stuck .c-navbar__mark { opacity: 1; visibility: visible; transform: none; }
  .c-navbar__inner { justify-content: center; position: relative; }
  .c-nav { display: block; position: static; background: none; border: 0; box-shadow: none; max-height: none; overflow: visible; animation: none; }
  .c-nav > ul { display: flex; align-items: center; gap: clamp(0.25rem, 1.4vw, 1.9rem); padding: 0; }
  .c-nav .menu-item { border: 0; }
  .c-nav > ul > .menu-item > a, .c-nav .c-nav__parent {
    position: relative; min-height: var(--navbar-h); padding: 0 0.35rem; width: auto; gap: 0.3rem;
    font-size: 0.975rem; font-weight: 500; color: var(--oismun-navy); justify-content: center;
  }
  /* hover/current: a short underline that grows from the centre */
  .c-nav > ul > .menu-item > a::after, .c-nav .c-nav__parent::after {
    content: ""; position: absolute; left: 50%; right: 50%; bottom: 0.7rem; height: 2px; border-radius: 2px;
    background: var(--oismun-blue); transition: left var(--dur) var(--ease-out), right var(--dur) var(--ease-out);
  }
  .c-nav > ul > .menu-item > a:hover::after, .c-nav > ul > .menu-item > a:focus-visible::after,
  .c-nav .c-nav__parent:hover::after, .c-nav .c-nav__parent[aria-expanded="true"]::after,
  .c-nav > ul > .current-menu-item > a::after, .c-nav > ul > .current-menu-ancestor > .c-nav__parent::after { left: 0.35rem; right: 0.35rem; }
  .c-nav > ul > .current-menu-item > a::after, .c-nav > ul > .current-menu-ancestor > .c-nav__parent::after { background: var(--oismun-navy); }
  .c-nav .current-menu-item > a::before { display: none; }
  .c-nav .current-menu-item > a, .c-nav .current-menu-ancestor > .c-nav__parent { font-weight: 700; }
  .c-nav__chevron { width: 0.85rem; height: 0.85rem; }

  .c-nav .sub-menu {
    display: block; position: absolute; left: 50%; top: calc(100% - 0.4rem); min-width: 15.5rem;
    padding: var(--space-2); background: var(--oismun-surface); border: 1px solid var(--oismun-line);
    border-radius: var(--radius-md); box-shadow: var(--shadow-md);
    opacity: 0; visibility: hidden; transform: translate(-50%, 6px);
    transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), visibility var(--dur);
  }
  .c-nav .sub-menu.is-open { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
  .c-nav .sub-menu a { min-height: 2.5rem; padding: 0.5rem 0.85rem; border-radius: var(--radius-sm);
    font-size: 0.94rem; font-weight: 500; color: var(--oismun-navy); }
  .c-nav .sub-menu a:hover, .c-nav .sub-menu a:focus-visible { background: var(--oismun-ice); }
  .c-nav .sub-menu .current-menu-item > a { font-weight: 700; background: var(--oismun-ice); }
  .c-search-toggle { position: absolute; right: var(--gutter); }
}

/* -- search -- */
.c-search { border-top: 1px solid var(--oismun-line); background: var(--oismun-surface); }
.c-search:not([hidden]) { animation: nav-in var(--dur) var(--ease-out); }
.c-search__form { display: flex; gap: var(--space-2); width: min(100% - 2 * var(--gutter), 44rem); margin: 0 auto; padding-block: var(--space-4); }
.c-search__input {
  flex: 1; min-width: 0; min-height: 2.9rem; padding: 0 1.1rem; border: 2px solid var(--oismun-line); border-radius: var(--radius-pill);
  background: var(--oismun-ice); color: var(--oismun-navy);
}
.c-search__input:focus { border-color: var(--oismun-blue); outline: none; box-shadow: 0 0 0 3px rgba(97, 158, 223, 0.35); }

/* ==== Section heading ========================================================== */
.c-section-head { display: grid; gap: var(--space-3); margin-bottom: clamp(1.75rem, 1rem + 2.5vw, 3rem); }
.c-section-head--center { text-align: center; justify-items: center; }
.c-section-head__title { font-size: var(--text-2xl); }
.c-section-head__title.t-display { font-size: clamp(1.9rem, 1.4rem + 2vw, 3rem); }
.c-section-head__lead { max-width: 40rem; color: var(--oismun-text-soft); font-size: var(--text-lg); }
.c-section-head__rule { width: 3rem; height: 3px; border-radius: 3px; background: var(--oismun-accent); }

/* ==== Emblem (globe + laurel from the OISMUN logo, tinted with `color`) ==== */
.c-emblem { position: relative; display: block; width: var(--emblem-size, 12rem); aspect-ratio: 1 / 1; color: var(--oismun-slate); flex: none; }
.c-emblem__laurel, .c-emblem__globe { position: absolute; background: currentColor;
  -webkit-mask: var(--mask) center / contain no-repeat; mask: var(--mask) center / contain no-repeat; }
.c-emblem__laurel { --mask: url("../images/emblem-laurel.png"); inset: 0; }
.c-emblem__globe  { --mask: url("../images/emblem-globe.png"); width: 64%; aspect-ratio: 432 / 434; left: 18%; top: 7%; }
.c-emblem--mist { color: var(--oismun-mist); }
.c-emblem--white { color: #fff; }
.c-emblem--navy { color: var(--oismun-navy); }

/* ==== Hero ======================================================================== */
.c-hero { position: relative; isolation: isolate; padding-block: clamp(2rem, 1rem + 4vw, 5rem) clamp(3rem, 2rem + 4vw, 6rem); overflow: hidden; }
.c-hero__title { font-size: var(--text-4xl); line-height: 1.05; color: var(--oismun-royal); }
.c-hero__lead { margin-top: var(--space-5); max-width: 34rem; font-size: var(--text-lg); color: var(--oismun-text-soft); }
.c-hero__actions { margin-top: var(--space-6); }

/* home: text + framed photo with a blob behind */
.c-hero--home .c-hero__media { position: relative; }
.c-hero--home .c-blob { position: absolute; width: 118%; right: -14%; top: -12%; color: var(--oismun-blue); opacity: 0.9; z-index: 0; }
.c-hero--home .c-frame { position: relative; z-index: 1; }
.c-hero--home .c-hero__emblem { position: absolute; z-index: 2; left: -1.25rem; bottom: -1.5rem; --emblem-size: clamp(5.5rem, 4rem + 5vw, 8.5rem);
  padding: 0.9rem; border-radius: 50%; background: var(--oismun-ice); box-shadow: var(--shadow-md); }
.c-hero--home .c-hero__watermark { position: absolute; z-index: -1; --emblem-size: 40rem; left: -12rem; top: -6rem; color: var(--oismun-light-blue); opacity: 0.8; }

/* team: engraved-style photo, and a blue shape flowing in from the right edge with emblem + quote (concept 2) */
.c-hero--team { padding: 0; display: grid; }
.c-hero--team .c-hero__photo { position: relative; height: clamp(14rem, 50vw, 20rem); }
.c-hero--team .c-hero__photo .c-duotone { height: 100%; }
.c-hero--team .c-hero__panel { position: relative; z-index: 1; display: grid; justify-items: center; align-content: center; gap: var(--space-4);
  margin: -2.5rem var(--gutter) 0; padding: clamp(2rem, 1.5rem + 3vw, 3rem) var(--space-5); color: #fff; text-align: center;
  border-radius: var(--radius-lg); overflow: hidden; background: var(--oismun-blue-deep); }
.c-hero--team .c-hero__panel .c-blob { display: none; }
.c-hero--team .c-emblem { --emblem-size: clamp(7rem, 5rem + 8vw, 12rem); }
.c-hero--team .c-quote__text { max-width: 14ch; margin-inline: auto; font-size: clamp(1.7rem, 1.2rem + 2vw, 2.7rem); }
@media (min-width: 48em) {
  .c-hero--team { grid-template-columns: 1fr minmax(22rem, 46%); min-height: clamp(28rem, 18rem + 22vw, 40rem); }
  .c-hero--team .c-hero__photo { position: absolute; inset: 0; height: auto; }
  .c-hero--team .c-hero__photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 45%, rgba(235, 248, 253, 0.35)); }
  .c-hero--team .c-hero__panel { grid-column: 2; margin: 0; border-radius: 0; background: none; overflow: visible;
    padding: clamp(2rem, 1rem + 3vw, 4rem) clamp(1.5rem, 1rem + 2vw, 3rem) clamp(2rem, 1rem + 3vw, 4rem) clamp(4rem, 2rem + 6vw, 9rem); }
  /* an SVG keeps its own proportions unless both sizes are given: explicit width + height (viewBox stretches, preserveAspectRatio="none") */
  .c-hero--team .c-hero__panel .c-blob { display: block; position: absolute; top: 0; left: -16%; width: 116%; height: 100%; max-width: none; z-index: -1; color: var(--oismun-blue-deep); }
  .c-hero--team .c-hero__panel .c-blob--soft { left: -27%; width: 127%; color: var(--oismun-blue); opacity: 0.5; }
}
/* committee: centred emblem, display title, function line (concept 3) */
.c-hero--emblem { text-align: center; padding-block: clamp(2.5rem, 1.5rem + 4vw, 5rem) clamp(3rem, 2rem + 4vw, 5.5rem); }
.c-hero--emblem .c-emblem { --emblem-size: clamp(11rem, 8rem + 16vw, 21rem); margin: 0 auto clamp(1.5rem, 1rem + 2vw, 2.75rem); }
.c-hero--emblem .c-hero__title { font-size: clamp(2rem, 1.4rem + 3vw, 3.6rem); color: var(--oismun-navy); }
.c-hero--emblem .c-hero__function { margin: var(--space-3) auto 0; max-width: 42rem; font-family: var(--font-serif); font-size: var(--text-xl); color: var(--oismun-navy); }

/* ==== Blob (organic shape, colour via `color`) ====================================== */
.c-blob { display: block; pointer-events: none; }
.c-blob path { fill: currentColor; }

/* ==== Framed photo (rounded, gentle zoom on hover) ================================== */
.c-frame { overflow: hidden; border-radius: var(--radius-lg); background: var(--oismun-light-blue); }
.c-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.c-frame:hover img, a:hover .c-frame img { transform: scale(1.035); }
.c-frame--wide { aspect-ratio: 4 / 3; }
@media (min-width: 60em) { .c-frame--tall { aspect-ratio: 5 / 6; } }

/* ==== Duotone photo (navy shadows, ice highlights: the concept's engraved look) ======= */
.c-duotone { position: relative; overflow: hidden; background: var(--oismun-navy); isolation: isolate; }
.c-duotone img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.15) brightness(1.08); mix-blend-mode: screen; }
.c-duotone::after { content: ""; position: absolute; inset: 0; background: var(--oismun-ice); mix-blend-mode: multiply; }

/* ==== Quote =========================================================================== */
.c-quote { position: relative; font-family: var(--font-serif); }
.c-quote__mark { display: block; width: 3.1rem; height: auto; color: var(--oismun-accent); }
.c-quote__mark path { fill: currentColor; }
.c-quote__text { font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.6rem); line-height: 1.2; font-weight: 500; }
.c-quote__cite { display: block; margin-top: var(--space-3); font-family: var(--font-sans); font-size: var(--text-sm); font-style: normal; font-weight: 600; letter-spacing: 0.04em; opacity: 0.9; }
.c-quote--inline { max-width: 46rem; margin: 0 auto; text-align: center; color: var(--oismun-navy); }
.c-quote--inline .c-quote__mark { margin: 0 auto var(--space-3); width: 2.4rem; }
.c-quote--inline .c-quote__text { font-size: clamp(1.3rem, 1.1rem + 1vw, 1.9rem); font-style: italic; font-weight: 400; }

/* ==== Stats ============================================================================= */
.c-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(0.75rem, 0.4rem + 2vw, 2rem); }
.c-stat { padding: clamp(0.9rem, 0.6rem + 1.2vw, 1.5rem) 0 0; border-top: 3px solid var(--oismun-navy); }
.c-stat__value { display: block; font-family: var(--font-serif); font-size: clamp(2rem, 1.4rem + 3vw, 3.6rem); font-weight: 700; line-height: 1; color: var(--oismun-royal); font-variant-numeric: lining-nums; }
.c-stat__label { display: block; margin-top: var(--space-2); font-size: clamp(0.8rem, 0.75rem + 0.3vw, 0.9375rem); line-height: 1.35; font-weight: 600; color: var(--oismun-text-soft); }

/* ==== Feature list ("Why join OISMUN?") ================================================== */
.c-features { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); list-style: none; padding: 0; }
.c-features li { flex: 1 1 calc(50% - var(--space-3)); max-width: 19rem; display: flex; gap: 0.75rem; align-items: flex-start; padding: var(--space-4); background: var(--oismun-surface); border-radius: var(--radius-md); border: var(--border-thin); font-weight: 600; line-height: 1.4; }
@media (min-width: 48em) { .c-features li { flex-basis: 15rem; } }
@media (max-width: 29.99em) { .c-features li { padding: var(--space-3); font-size: var(--text-sm); } }
.c-features li::before { content: ""; flex: none; width: 0.55rem; height: 0.55rem; margin-top: 0.45em; border-radius: 50%; background: var(--oismun-blue); box-shadow: 0 0 0 4px var(--oismun-light-blue); }

/* ==== Person card (rounded-square portrait; name and role underneath) ===================== */
.c-person { text-align: center; }
.c-person__trigger { position: relative; display: grid; justify-items: center; gap: var(--space-3); width: 100%; padding: 0; border: 0; background: none; color: inherit; text-align: center; }
.c-person__portrait {
  position: relative; display: grid; place-items: center; width: 100%; max-width: 13rem; aspect-ratio: 1 / 1;
  overflow: hidden; border: 3px solid var(--oismun-navy); border-radius: var(--radius-lg); background: var(--oismun-surface);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.c-person__portrait img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.c-person__portrait--circle { border-radius: 50%; }
/* no photo yet: a neutral portrait silhouette (initials read like committee abbreviations: GA, SC) */
.c-person__placeholder { position: absolute; inset: 0; display: grid; align-items: end; justify-items: center;
  background: linear-gradient(180deg, #fff 0%, var(--oismun-ice) 100%); color: var(--oismun-mist); }
.c-person__placeholder svg { width: 72%; height: auto; fill: currentColor; }
.c-person__monogram { font-family: var(--font-serif); font-style: italic; font-weight: 600; font-size: clamp(2rem, 1.5rem + 2vw, 3rem); color: var(--oismun-royal); letter-spacing: 0.02em; }
.c-person__name { font-family: var(--font-serif); font-size: var(--text-lg); font-weight: 600; line-height: 1.25; color: var(--oismun-royal); }
.c-person__role { margin-top: -0.35rem; font-size: var(--text-sm); color: var(--oismun-text-soft); line-height: 1.35; }
.c-person__more { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--oismun-royal); opacity: 0; transform: translateY(-3px); transition: opacity var(--dur) var(--ease-out), transform var(--dur) var(--ease-out); }
.c-person__trigger:hover .c-person__portrait, .c-person__trigger:focus-visible .c-person__portrait { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--oismun-royal); }
.c-person__trigger:hover img { transform: scale(1.04); }
.c-person__trigger:hover .c-person__more, .c-person__trigger:focus-visible .c-person__more { opacity: 1; transform: none; }
@media (hover: none) { .c-person__more { opacity: 1; transform: none; } }
.c-person--small .c-person__trigger { gap: var(--space-2); }
.c-person--small .c-person__portrait { max-width: 9rem; border-width: 2px; border-radius: clamp(14px, 4vw, 22px); }
.c-person--small /* no photo yet: a neutral portrait silhouette (initials read like committee abbreviations: GA, SC) */
.c-person__placeholder { position: absolute; inset: 0; display: grid; align-items: end; justify-items: center;
  background: linear-gradient(180deg, #fff 0%, var(--oismun-ice) 100%); color: var(--oismun-mist); }
.c-person__placeholder svg { width: 72%; height: auto; fill: currentColor; }
.c-person__monogram { font-size: clamp(1.4rem, 1rem + 1.6vw, 2.2rem); }
.c-person--small .c-person__name { font-size: clamp(0.92rem, 0.85rem + 0.35vw, 1.05rem); }
.c-person--small .c-person__role { margin-top: -0.2rem; font-size: clamp(0.78rem, 0.74rem + 0.2vw, 0.875rem); }
.c-person--small .c-person__more { display: none; }

/* ==== Carousel (scroll-snap track + two buttons; no library) ================================ */
.c-carousel { position: relative; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: var(--space-2); }
.c-carousel__track {
  min-width: 0;   /* a grid item: without this the track grows to the width of all its cards */
  position: relative;   /* containing block for absolutely positioned children (screen-reader labels), so the track clips them */
  display: grid; grid-auto-flow: column; grid-auto-columns: var(--carousel-item, 60%);
  gap: clamp(1rem, 0.6rem + 1.5vw, 2rem); overflow-x: auto; overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory; scrollbar-width: none; padding: 0.5rem 0.25rem 1rem; list-style: none; margin: 0;
}
.c-carousel__track::-webkit-scrollbar { display: none; }
.c-carousel__track > * { scroll-snap-align: start; }
.c-carousel__track:focus-visible { outline-offset: 6px; }
@media (min-width: 30em) { .c-carousel { --carousel-item: calc((100% - 1 * 1.5rem) / 2.2); } }
@media (min-width: 48em) { .c-carousel { --carousel-item: calc((100% - 2 * 1.75rem) / 3); } }
@media (min-width: 64em) { .c-carousel { --carousel-item: calc((100% - 3 * 2rem) / 4); } }
.c-carousel__btn {
  display: grid; place-items: center; width: 2.9rem; height: 2.9rem; border: 2px solid var(--oismun-navy); border-radius: 50%;
  background: transparent; color: var(--oismun-navy);
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out), opacity var(--dur) var(--ease-out);
}
.c-carousel__btn svg { width: 1.2rem; height: 1.2rem; }
.c-carousel__btn:hover:not(:disabled) { background: var(--oismun-navy); color: #fff; }
.c-carousel__btn:disabled { opacity: 0.25; cursor: default; }
@media (max-width: 29.99em) {   /* phones: swipe; buttons move under the track */
  .c-carousel { grid-template-columns: 1fr 1fr; }
  .c-carousel__track { grid-column: 1 / -1; grid-row: 1; }
  .c-carousel__btn--prev { justify-self: end; }
}

/* ==== Link card: departments / committees (concept: outlined boxes with ">") ================== */
.c-link-card {
  position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-4);
  min-height: clamp(6.25rem, 4.5rem + 5vw, 8.5rem); padding: clamp(1rem, 0.7rem + 1.2vw, 1.5rem); border: var(--border-strong); border-radius: 4px;
  background: transparent; color: var(--oismun-royal); text-decoration: none;
  transition: background-color var(--dur) var(--ease-out), color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out);
}
.c-link-card__title { font-family: var(--font-serif); font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.6rem); font-weight: 600; line-height: 1.2; }
.c-link-card__meta { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--oismun-text-soft); transition: color var(--dur) var(--ease-out); }
.c-link-card .c-arrow { align-self: flex-end; width: 1.35rem; height: 1.35rem; margin-top: auto; }
.c-link-card:hover, .c-link-card:focus-visible { background: var(--oismun-navy); color: #fff; }
.c-link-card:hover .c-link-card__meta, .c-link-card:focus-visible .c-link-card__meta { color: var(--oismun-light-blue); }
.c-link-card:hover .c-arrow, .c-link-card:focus-visible .c-arrow { transform: translateX(6px); }

/* ==== Committee card ============================================================================ */
.c-committee-card {
  position: relative; display: flex; flex-direction: column; gap: var(--space-3); height: 100%;
  padding: var(--space-5); background: var(--oismun-surface); border: var(--border-thin); border-radius: var(--radius-md);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.c-committee-card:hover, .c-committee-card:focus-within { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.c-committee-card .c-emblem { --emblem-size: 3.25rem; color: var(--oismun-slate); }
.c-committee-card__abbr { position: absolute; top: var(--space-5); right: var(--space-5); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; color: var(--oismun-text-soft); }
.c-committee-card__title { font-size: 1.35rem; color: var(--oismun-royal); }
.c-committee-card__title a { text-decoration: none; }
.c-committee-card__title a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }   /* whole card clickable */
.c-committee-card__function { font-size: var(--text-sm); color: var(--oismun-text-soft); line-height: 1.55; }
.c-committee-card__meta { margin-top: auto; padding-top: var(--space-3); border-top: var(--border-thin); display: flex; justify-content: space-between; align-items: center; gap: var(--space-2); font-size: var(--text-xs); font-weight: 600; color: var(--oismun-text-soft); }
.c-committee-card__meta .c-arrow { color: var(--oismun-royal); width: 1.25rem; height: 1.25rem; }
.c-committee-card:hover .c-arrow { transform: translateX(4px); }
.c-lang { display: inline-block; padding: 1px 7px; border: 1px solid currentColor; border-radius: var(--radius-pill); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; }

/* ==== Topic card (topic + research guides) ======================================================= */
.c-topic { display: grid; gap: var(--space-4); padding: var(--space-5); border: var(--border-strong); border-radius: 4px; background: rgba(255, 255, 255, 0.55); }
.c-topic__label { font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--oismun-text-soft); }
.c-topic__title { font-family: var(--font-serif); font-size: clamp(1.35rem, 1.2rem + 0.6vw, 1.75rem); color: var(--oismun-royal); line-height: 1.2; }
.c-topic__title span { font-style: italic; font-weight: 400; }

/* ==== Chairs block (committee page, concept 3: circles with role + name) =========================== */
.c-chairs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(1.25rem, 0.8rem + 2vw, 2.5rem) clamp(1rem, 0.5rem + 2vw, 2rem); }
.c-chairs .c-person__portrait { max-width: 11rem; border-width: 4px; }
.c-chairs .c-person__role { order: -1; margin: 0; font-family: var(--font-serif); font-size: var(--text-base); font-style: italic; color: var(--oismun-royal); }
.c-chairs .c-person__trigger { gap: var(--space-2); }

/* ==== Sponsors ======================================================================================= */
.c-sponsor-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: clamp(1rem, 0.6rem + 1.6vw, 2rem); }
@media (min-width: 48em) { .c-sponsor-grid { grid-template-columns: repeat(var(--sponsor-cols, 3), minmax(0, 1fr)); } }
.c-sponsor {
  display: grid; place-items: center; aspect-ratio: 3 / 2; padding: clamp(1.25rem, 1rem + 1.5vw, 2.25rem);
  background: var(--oismun-surface); border: var(--border-thin); border-radius: var(--radius-md); text-decoration: none;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.c-sponsor img { max-height: 6rem; width: auto; max-width: 100%; object-fit: contain; }
a.c-sponsor:hover { transform: translateY(-3px) scale(1.01); box-shadow: var(--shadow-md); }
.c-sponsor--placeholder { border: 2px dashed var(--oismun-mist); background: transparent; font-family: var(--font-serif); font-size: 1.6rem; color: var(--oismun-slate); }
.c-empty { display: grid; justify-items: center; gap: var(--space-4); max-width: 34rem; margin: 0 auto; padding: var(--space-6) var(--space-5);
  text-align: center; border: 1px solid var(--oismun-line); border-radius: var(--radius-lg); background: rgba(255, 255, 255, 0.6); }
.c-empty p { color: var(--oismun-text-soft); }

/* ==== Logos row (affiliations) ======================================================================== */
.c-logos { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); gap: var(--space-5); align-items: stretch; }
.c-logo-card { display: grid; gap: var(--space-4); align-content: start; padding: var(--space-5); background: var(--oismun-surface); border-radius: var(--radius-md); border: var(--border-thin); }
.c-logo-card__img { display: flex; align-items: center; justify-content: center; height: 5.5rem; }
.c-logo-card__img img { max-height: 5.5rem; width: auto; max-width: 100%; object-fit: contain; }
.c-logo-card p { font-size: var(--text-sm); color: var(--oismun-text-soft); line-height: 1.55; }
.c-logo-card__year { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--oismun-royal); }

/* ==== Programme card (conference hub) ================================================================ */
.c-programme { position: relative; display: grid; overflow: hidden; border-radius: var(--radius-lg); background: var(--oismun-surface); border: var(--border-thin);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); }
.c-programme:hover, .c-programme:focus-within { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.c-programme__media { aspect-ratio: 16 / 9; overflow: hidden; background: var(--oismun-light-blue); }
.c-programme__media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.c-programme:hover .c-programme__media img { transform: scale(1.04); }
.c-programme__body { display: grid; gap: var(--space-3); padding: var(--space-5); }
.c-programme__title { font-size: var(--text-xl); }
.c-programme__title a { text-decoration: none; }
.c-programme__title a::after { content: ""; position: absolute; inset: 0; }
.c-programme__tag { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--oismun-text-soft); }
.c-programme--feature { border: 0; background: var(--oismun-navy); color: #fff; }
.c-programme--feature .c-programme__title, .c-programme--feature .c-programme__tag { color: #fff; }
.c-programme--feature .c-programme__tag { color: var(--oismun-accent); }
.c-programme--feature p { color: rgba(255, 255, 255, 0.86); }
@media (min-width: 60em) {
  .c-programme--feature { grid-template-columns: 1.15fr 1fr; }
  .c-programme--feature .c-programme__media { aspect-ratio: auto; min-height: 100%; }
  .c-programme--feature .c-programme__body { align-content: center; padding: clamp(2rem, 1rem + 3vw, 3.5rem); }
  .c-programme--feature .c-programme__title { font-size: var(--text-3xl); }
}
.c-programme--mal .c-programme__media { background: var(--mal-green); }
.c-programme--mal .c-programme__media img { object-fit: contain; padding: 1.5rem; }
.c-programme--oisfua .c-programme__media { background: var(--oisfua-yellow); }
.c-programme--oisfua .c-programme__media img { object-fit: contain; }
.c-programme--mal .c-programme__tag { color: var(--mal-green-deep); }
.c-programme--oisfua .c-programme__tag { color: var(--oisfua-green); }

/* ==== Countdown ========================================================================================= */
.c-countdown { text-align: center; }
.c-countdown__title { font-family: var(--font-serif); font-size: clamp(1.45rem, 1.1rem + 1.6vw, 2.35rem); font-weight: 500; color: var(--oismun-royal); }
.c-countdown__units { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(0.5rem, 0.2rem + 1.5vw, 2rem); max-width: 44rem; margin: var(--space-5) auto 0; }
.c-countdown__unit { display: grid; justify-items: center; gap: 0.2rem; }
.c-countdown__value { font-family: var(--font-serif); font-size: clamp(2.2rem, 1.4rem + 4vw, 4.25rem); font-weight: 500; line-height: 1; color: var(--oismun-royal); font-variant-numeric: tabular-nums lining-nums; }
.c-countdown__value.is-tick { animation: tick var(--dur) var(--ease-out); }
@keyframes tick { from { opacity: 0.35; transform: translateY(-0.12em); } to { opacity: 1; transform: none; } }
.c-countdown__label { font-family: var(--font-serif); font-size: clamp(0.95rem, 0.85rem + 0.4vw, 1.2rem); color: var(--oismun-text-soft); }
.c-countdown__date { margin-top: var(--space-4); font-size: var(--text-sm); font-weight: 600; color: var(--oismun-text-soft); }

/* ==== Registration card ================================================================================= */
.c-reg-card { display: grid; gap: var(--space-4); align-content: start; padding: var(--space-6) var(--space-5); background: var(--oismun-surface);
  border: var(--border-thin); border-radius: var(--radius-md); transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out); }
.c-reg-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.c-reg-card__title { font-size: var(--text-xl); }
.c-reg-card p { color: var(--oismun-text-soft); font-size: var(--text-sm); }
.c-reg-card .c-btn { justify-self: start; }
.c-status { display: inline-flex; align-items: center; gap: 0.45rem; justify-self: start; padding: 0.2rem 0.7rem; border-radius: var(--radius-pill);
  font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.c-status::before { content: ""; width: 0.5rem; height: 0.5rem; border-radius: 50%; background: currentColor; }
.c-status--open { background: #E3F4E8; color: #1F6B3A; }
.c-status--closed { background: #F1F3F6; color: #4A5568; }
.c-status--soon { background: #FFF6D6; color: #7A5B00; }

/* ==== CTA band ============================================================================================ */
.c-cta { position: relative; overflow: hidden; display: grid; gap: var(--space-5); justify-items: start;
  padding: clamp(2rem, 1.2rem + 3.5vw, 4rem); border-radius: var(--radius-lg); background: var(--oismun-navy); color: #fff; }
.c-cta__title { color: #fff; font-size: var(--text-2xl); max-width: 30rem; }
.c-cta p { color: rgba(255, 255, 255, 0.86); max-width: 36rem; }
.c-cta .c-emblem { position: absolute; right: -3rem; bottom: -4rem; --emblem-size: 18rem; color: rgba(255, 255, 255, 0.08); }
@media (min-width: 48em) { .c-cta { grid-template-columns: 1fr auto; align-items: center; } }

/* ==== Dialog (person bios) ================================================================================== */
.c-dialog { width: min(100% - 2rem, 40rem); max-height: min(88vh, 46rem); padding: 0; border: 0; border-radius: var(--radius-lg);
  background: var(--oismun-surface); color: var(--oismun-text); box-shadow: 0 30px 80px -20px rgba(15, 30, 55, 0.5); }
.c-dialog::backdrop { background: rgba(21, 39, 66, 0.55); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.c-dialog[open] { animation: dialog-in var(--dur) var(--ease-out); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: none; } }
.c-dialog__inner { display: grid; gap: var(--space-4); padding: clamp(1.5rem, 1rem + 2vw, 2.5rem); }
.c-dialog__head { display: flex; align-items: center; gap: var(--space-4); padding-right: 2.5rem; }
.c-dialog__head .c-person__portrait { width: 5rem; flex: none; border-width: 2px; border-radius: 18px; }
.c-dialog__head /* no photo yet: a neutral portrait silhouette (initials read like committee abbreviations: GA, SC) */
.c-person__placeholder { position: absolute; inset: 0; display: grid; align-items: end; justify-items: center;
  background: linear-gradient(180deg, #fff 0%, var(--oismun-ice) 100%); color: var(--oismun-mist); }
.c-person__placeholder svg { width: 72%; height: auto; fill: currentColor; }
.c-person__monogram { font-size: 1.6rem; }
.c-dialog__title { font-size: var(--text-xl); }
.c-dialog__close { position: absolute; top: 1rem; right: 1rem; display: grid; place-items: center; width: 2.6rem; height: 2.6rem;
  border: 0; border-radius: 50%; background: var(--oismun-ice); color: var(--oismun-navy); }
.c-dialog__close:hover { background: var(--oismun-light-blue); }
.c-dialog__close svg { width: 1.2rem; height: 1.2rem; }
.c-dialog__body { overflow-y: auto; font-size: var(--text-base); color: var(--oismun-text); }

/* ==== Footer ================================================================================================= */
.c-footer { margin-top: var(--section-y); background: var(--oismun-navy); color: rgba(255, 255, 255, 0.86); font-size: var(--text-sm); }
/* A page that ends on a coloured band meets the footer directly (no empty strip of page colour between them). */
main:has(> :last-child:is(.l-section--band, .l-section--white, .c-programme-hero)) + .c-footer { margin-top: 0; }
.c-footer a { color: #fff; text-decoration: none; }
.c-footer a:hover { text-decoration: underline; text-underline-offset: 3px; }
.c-footer__top { display: grid; gap: var(--space-6); padding-block: clamp(2.5rem, 1.5rem + 4vw, 4.5rem) var(--space-6); }
@media (min-width: 48em) { .c-footer__top { grid-template-columns: 1.4fr 1fr 1fr; } }
@media (min-width: 64em) { .c-footer__top { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; } }
.c-footer__logo { display: block; width: 13rem; aspect-ratio: 2067 / 462; background: #fff;
  -webkit-mask: url("../images/oismun-logo-960.png") center / contain no-repeat; mask: url("../images/oismun-logo-960.png") center / contain no-repeat; }
.c-footer__about { margin-top: var(--space-4); max-width: 22rem; line-height: 1.6; }
.c-footer__heading { margin-bottom: var(--space-3); font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--oismun-accent); }
.c-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.45rem; }
.c-footer address { font-style: normal; line-height: 1.6; }
.c-social { display: flex; gap: var(--space-2); margin-top: var(--space-4); }
.c-social a { display: grid; place-items: center; width: 2.6rem; height: 2.6rem; border: 1px solid rgba(255, 255, 255, 0.35); border-radius: 50%;
  transition: background-color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out); }
.c-social a:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; text-decoration: none; }
.c-social svg { width: 1.1rem; height: 1.1rem; fill: currentColor; }
.c-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); padding-block: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.16); font-size: var(--text-xs); color: rgba(255, 255, 255, 0.72); }