/* UPBS — feuille de style unique, polices système, aucune ressource externe. */

:root {
  --marine: #0B2A6B;
  --marine-nuit: #071D4C;
  --bleu: #1F6FC5;
  --ciel: #CFE4F8;
  --brume: #EEF5FC;
  --blanc: #FFFFFF;
  --encre: #0A1E46;
  --encre-douce: #3D5378;
  --ciel-texte: #B9D3F0;
  --filet: rgba(11, 42, 107, 0.14);
  --focus: var(--bleu);

  --serif: "Palatino Linotype", Palatino, "Book Antiqua", "URW Palladio L", P052, "TeX Gyre Pagella", "Noto Serif", Georgia, serif;
  --sans: Seravek, "Segoe UI", Ubuntu, Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(1.25rem, 4.5vw, 4rem);
  --gap: clamp(1rem, 2.2vw, 2rem);
  --header-h: 4.25rem;
  --section-y: clamp(4.5rem, 9vw, 8.5rem);
  /* Le liseré : double filet repris de l’anneau du logo et du passepoil des blazers. */
  --lisere: 5px double;
}

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

[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--encre);
  background: var(--blanc);
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.1;
  text-wrap: balance;
}

h2 {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}

h3 { font-size: clamp(1.375rem, 2.2vw, 1.75rem); line-height: 1.2; }

p { margin: 0 0 1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: var(--bleu); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

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

.hero,
.site-header,
.section--contact,
.site-footer,
.lightbox { --focus: #8FC1F2; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: 1rem; top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  font-family: var(--sans);
  font-weight: 600;
  color: var(--marine);
  background: var(--blanc);
}
.skip:focus { top: 1rem; }

.wrap {
  width: min(100% - 2 * var(--gutter), 80rem);
  margin-inline: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gap);
}

.lead {
  font-size: clamp(1.25rem, 1.9vw, 1.5rem);
  line-height: 1.45;
}

.prose p { max-width: 34em; }

/* ——— Boutons ——— */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.35rem;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 0;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }

.btn--light {
  color: var(--marine);
  background: var(--blanc);
  border-color: var(--blanc);
  box-shadow: inset 0 0 0 3px var(--blanc), inset 0 0 0 4px var(--marine);
}
.btn--light:hover { background: var(--ciel); border-color: var(--ciel); box-shadow: inset 0 0 0 3px var(--ciel), inset 0 0 0 4px var(--marine); }

.btn--line { color: var(--blanc); border-color: rgba(207, 228, 248, 0.55); }
.btn--line:hover { background: rgba(255, 255, 255, 0.08); border-color: var(--ciel); }

.btn--dark {
  color: var(--blanc);
  background: var(--marine);
  border-color: var(--marine);
  box-shadow: inset 0 0 0 3px var(--marine), inset 0 0 0 4px var(--ciel);
}
.btn--dark:hover { background: var(--marine-nuit); border-color: var(--marine-nuit); box-shadow: inset 0 0 0 3px var(--marine-nuit), inset 0 0 0 4px var(--ciel); }

.btn--small { min-height: 2.75rem; padding: 0.6rem 1rem; font-size: 0.9375rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

/* ——— Mention de démonstration ——— */

.demo-bar {
  font-family: var(--sans);
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--ciel-texte);
  background: var(--marine-nuit);
}
.demo-bar p { padding-block: 0.4rem; }

/* ——— En-tête ——— */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  color: var(--blanc);
  background: var(--marine);
  border-bottom: 1px solid rgba(207, 228, 248, 0.16);
}

.site-header__bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-right: auto;
  color: inherit;
  text-decoration: none;
}
.brand__logo { width: 2.5rem; height: 2.5rem; border-radius: 50%; }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__acronym { font-size: 1.375rem; letter-spacing: 0.06em; }
.brand__name { font-family: var(--sans); font-size: 0.8125rem; color: var(--ciel-texte); }

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav a {
  display: inline-block;
  padding: 0.5rem 0;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--blanc);
  text-decoration: none;
}
.site-nav a:hover,
.site-nav a[aria-current="true"] {
  text-decoration: underline;
  text-decoration-style: double;
  text-decoration-color: var(--ciel);
  text-decoration-thickness: 3px;
  text-underline-offset: 0.5em;
}

.header-call {
  padding: 0.5rem 0.9rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--marine);
  text-decoration: none;
  background: var(--blanc);
  box-shadow: inset 0 0 0 2px var(--blanc), inset 0 0 0 3px var(--marine);
}
.header-call:hover { background: var(--ciel); box-shadow: inset 0 0 0 2px var(--ciel), inset 0 0 0 3px var(--marine); }

.menu-toggle { display: none; }

@media (max-width: 85rem) {
  .brand__name { display: none; }
}

@media (max-width: 68.74rem) {
  .site-header__bar { flex-wrap: wrap; gap: 0.75rem 1rem; padding-block: 0.75rem; }
  .site-nav { order: 3; width: 100%; }

  .js .site-header__bar { flex-wrap: nowrap; padding-block: 0; }
  .js .menu-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-height: 2.75rem;
    padding: 0.5rem 0.85rem;
    font-family: var(--sans);
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--blanc);
    background: transparent;
    border: 1px solid rgba(207, 228, 248, 0.55);
    border-radius: 0;
    cursor: pointer;
  }
  .menu-toggle__icon,
  .menu-toggle__icon::before,
  .menu-toggle__icon::after {
    display: block;
    width: 1.1rem;
    height: 2px;
    background: currentColor;
  }
  .menu-toggle__icon { position: relative; }
  .menu-toggle__icon::before,
  .menu-toggle__icon::after { content: ""; position: absolute; left: 0; }
  .menu-toggle__icon::before { top: -6px; }
  .menu-toggle__icon::after { top: 6px; }
  .menu-toggle[aria-expanded="true"] .menu-toggle__icon { background: transparent; }
  .menu-toggle[aria-expanded="true"] .menu-toggle__icon::before { top: 0; transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-toggle__icon::after { top: 0; transform: rotate(-45deg); }

  .js .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 1rem var(--gutter) 2rem;
    background: var(--marine-nuit);
    border-bottom: var(--lisere) var(--ciel);
  }
  .js .site-nav.is-open { display: block; }
  .js .site-nav__list { flex-direction: column; gap: 0; }
  .js .site-nav a {
    display: block;
    padding: 0.7rem 0;
    font-family: var(--serif);
    font-size: 1.625rem;
    border-bottom: 1px solid rgba(207, 228, 248, 0.14);
  }
  .js .site-nav a:hover { text-decoration-thickness: 3px; }
}

@media (max-width: 30rem) {
  .js .site-header__bar { gap: 0.5rem; }
  .header-call { padding: 0.5rem 0.7rem; }
  .brand__acronym { font-size: 1.25rem; }
}

/* ——— Accueil ——— */

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(3.5rem, 7vw, 6rem);
  color: var(--blanc);
  background: var(--marine);
}

/* Le logo officiel tient la marge gauche ; lieu, nom, texte et rentrées
   s’alignent tous sur la même verticale, à droite du logo. */
.hero__grid {
  --sceau: clamp(4rem, 10vw, 9.5rem); /* 152 px au plus : sous les 200 px natifs */
  display: grid;
  grid-template-columns: var(--sceau) minmax(0, 7fr) minmax(0, 5fr);
  grid-template-areas:
    "logo place place"
    "logo titre titre"
    ".    intro rentree";
  column-gap: clamp(1.25rem, 3vw, 3rem);
  align-items: start;
}

.hero__logo {
  grid-area: logo;
  width: 100%;
  max-width: 200px;
  border-radius: 50%;
}

.hero__place {
  grid-area: place;
  margin: 0 0 0.75rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--ciel-texte);
}

.hero__title {
  grid-area: titre;
  font-size: clamp(2.375rem, 6.4vw, 6.25rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
}
.hero__ligne { display: block; }

.hero__intro {
  grid-area: intro;
  margin-top: clamp(1.75rem, 3.5vw, 2.75rem);
}
.hero__lead {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  line-height: 1.4;
  max-width: 28em;
}
.hero__intro .actions { margin-top: 1.75rem; }
.hero__pedagogie {
  max-width: 36em;
  margin-top: 2rem;
  padding-top: 1.25rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--ciel-texte);
  border-top: 1px solid rgba(207, 228, 248, 0.22);
}
.hero__pedagogie a { color: var(--blanc); font-weight: 600; }

.hero__rentree {
  grid-area: rentree;
  margin-top: clamp(1.75rem, 3.5vw, 2.75rem);
  border-top: var(--lisere) var(--ciel);
}
.rentree__title {
  padding: 1rem 0 0.5rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--ciel-texte);
}
.rentree__list { margin: 0; padding: 0; list-style: none; }
.rentree__list li + li { border-top: 1px solid rgba(207, 228, 248, 0.2); }
.rentree__item {
  display: block;
  padding: 1rem 0 1.1rem;
  color: var(--blanc);
  text-decoration: none;
}
.rentree__what { display: block; font-size: 1.375rem; line-height: 1.25; }
.rentree__when { display: block; margin-top: 0.15rem; font-family: var(--sans); font-size: 0.9375rem; color: var(--ciel-texte); }
.rentree__action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.6rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
}
.rentree__item:hover .rentree__action { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }

@media (max-width: 60rem) {
  .hero__grid {
    grid-template-columns: var(--sceau) minmax(0, 1fr);
    grid-template-areas:
      "logo place"
      "logo titre"
      ".    intro"
      ".    rentree";
  }
  .hero__rentree { max-width: 34rem; }
}

@media (max-width: 40rem) {
  .hero__grid {
    grid-template-columns: 4rem minmax(0, 1fr);
    grid-template-areas:
      "logo place"
      "titre titre"
      "intro intro"
      "rentree rentree";
    column-gap: 1rem;
  }
  .hero__logo { margin-bottom: 1.25rem; }
  .hero__place { align-self: center; margin: 0 0 1.25rem; }
}

/* Flèche des liens d’action (dessinée en SVG, masquée aux lecteurs d’écran). */
.fleche {
  flex: none;
  width: 1.5em;
  height: 0.75em;
  overflow: visible;
}
.fleche path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.lien-action { display: inline-flex; align-items: center; gap: 0.45em; }

/* Unique moment animé : apparition du nom au chargement. */
@media (prefers-reduced-motion: no-preference) {
  .js .hero__ligne { animation: monter 0.9s cubic-bezier(0.16, 0.84, 0.3, 1) both; }
  .js .hero__ligne + .hero__ligne { animation-delay: 0.1s; }
  .fleche { transition: transform 0.2s ease-out; }
  .rentree__item:hover .fleche,
  .lien-action:hover .fleche { transform: translateX(0.2em); }

  html { scroll-behavior: smooth; }
}

@keyframes monter { from { opacity: 0; transform: translateY(0.25em); } to { opacity: 1; transform: none; } }

/* ——— Sections ——— */

.section { padding-block: var(--section-y); }

/* Université */

.universite__title { grid-column: 1 / 6; }
.universite__text { grid-column: 7 / -1; padding-top: 0.5rem; }

.reperes { grid-column: 1 / -1; margin-top: clamp(3.5rem, 7vw, 6rem); }
.reperes__title {
  margin-bottom: 1.75rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--encre-douce);
}
.reperes__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
/* Un trait court et plein marque chaque date : rien qui ressemble à un bouton. */
.repere::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 3px;
  margin-bottom: 1rem;
  background: var(--bleu);
}
.repere p { margin: 0; }
.repere .repere__date { font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; color: var(--bleu); }
.repere .repere__what { margin-top: 0.35rem; font-size: 1.3125rem; line-height: 1.3; }
.repere .repere__ref { margin-top: 0.5rem; font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }

.venir {
  grid-column: 7 / -1;
  margin-top: clamp(3.5rem, 7vw, 6rem);
  padding-top: 1.5rem;
  border-top: var(--lisere) var(--bleu);
}
.venir__title { font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; color: var(--encre-douce); }
.venir__adresse { margin: 0.75rem 0 1rem; font-size: clamp(1.5rem, 2.6vw, 2.125rem); line-height: 1.25; }
.venir__aide { font-family: var(--sans); font-size: 1rem; color: var(--encre-douce); }

@media (max-width: 60rem) {
  .universite__title,
  .universite__text,
  .venir { grid-column: 1 / -1; }
  .universite__text { padding-top: 1.5rem; }
  .reperes__list { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 2.25rem; }
}

@media (max-width: 30rem) {
  .reperes__list { grid-template-columns: 1fr; }
}

/* Masters */

.section--masters { background: var(--brume); }

.masters__title { grid-column: 1 / 6; }
.masters__intro { grid-column: 7 / -1; }

.tag {
  display: inline-block;
  margin-bottom: 1.25rem;
  padding: 0.4rem 0.75rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--marine);
  background: var(--blanc);
  border: 1px solid var(--marine);
}

.notice {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  font-size: 1.125rem;
  line-height: 1.5;
  background: var(--blanc);
  border-left: 4px solid var(--bleu);
}
.notice a { font-family: var(--sans); font-weight: 600; white-space: nowrap; }

.masters__body { margin-top: clamp(3rem, 6vw, 5rem); align-items: start; }

.catalogue { grid-column: 1 / 8; }

.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }
.filter {
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  color: var(--marine);
  background: var(--blanc);
  border: 1px solid rgba(11, 42, 107, 0.35);
  border-radius: 0;
  cursor: pointer;
}
.filter:hover { border-color: var(--marine); }
.filter[aria-pressed="true"] {
  color: var(--blanc);
  background: var(--marine);
  border-color: var(--marine);
  box-shadow: inset 0 0 0 2px var(--marine), inset 0 0 0 3px var(--ciel);
}
.filter__count { margin-left: 0.3rem; font-variant-numeric: tabular-nums; opacity: 0.75; }

.filters__status { margin-bottom: 0.5rem; font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }

.specialites {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: var(--gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.specialite {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--filet);
}
.specialite__nom { display: block; font-size: clamp(1.25rem, 1.7vw, 1.4375rem); line-height: 1.25; }
.specialite__famille { display: block; margin-top: 0.3rem; font-family: var(--sans); font-size: 0.8125rem; color: var(--encre-douce); }

.organisation {
  grid-column: 9 / -1;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--blanc);
  border-top: var(--lisere) var(--bleu);
}
.organisation__title { font-size: 1.375rem; }
.duree__total { margin: 1.25rem 0 0.75rem; font-size: 2.25rem; line-height: 1.1; }
.duree__barre { display: flex; gap: 3px; height: 2.75rem; }
.duree__seg {
  display: flex;
  align-items: center;
  padding: 0 0.6rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 600;
  white-space: nowrap;
}
.duree__seg--cours { flex: 13 1 0; color: var(--blanc); background: var(--marine); }
.duree__seg--stage { flex: 3 1 0; min-width: 3.5rem; justify-content: center; padding: 0 0.25rem; color: var(--marine); background: var(--ciel); }
.duree__legende { margin: 1rem 0 0; }
.duree__legende div { display: grid; grid-template-columns: 4.5rem 1fr; gap: 0.75rem; padding: 0.45rem 0; }
.duree__legende dt { font-family: var(--sans); font-size: 0.875rem; font-weight: 600; color: var(--marine); }
.duree__legende dd { margin: 0; font-size: 1rem; line-height: 1.45; }

.faits { margin: 1.5rem 0; }
.faits div { padding: 0.75rem 0; border-top: 1px solid var(--filet); }
.faits dt { font-family: var(--sans); font-size: 0.875rem; font-weight: 600; color: var(--encre-douce); }
.faits dd { margin: 0.2rem 0 0; font-size: 1.0625rem; line-height: 1.5; }

.organisation .btn { width: 100%; }

@media (max-width: 60rem) {
  .masters__title,
  .masters__intro,
  .catalogue,
  .organisation { grid-column: 1 / -1; }
  .masters__intro { margin-top: 1.5rem; }
  .organisation { margin-top: 3rem; max-width: 36rem; }
}

@media (max-width: 40rem) {
  .specialites { grid-template-columns: 1fr; }
}

/* Admissions */

.admissions__title { grid-column: 1 / 6; }
.admissions__lead { grid-column: 7 / -1; align-self: end; margin: 0; }

.tabs { margin-top: clamp(2.5rem, 5vw, 4rem); }

.tabs__list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--filet);
}
html:not(.js) .tabs__list { display: none; }

.tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
  padding: 1rem 1.25rem 1.1rem;
  text-align: left;
  color: var(--encre);
  background: transparent;
  border: 0;
  border-bottom: var(--lisere) transparent;
  margin-bottom: -1px;
  border-radius: 0;
  cursor: pointer;
}
.tab:hover { background: var(--brume); }
.tab[aria-selected="true"] { color: var(--marine); background: var(--brume); border-bottom-color: var(--bleu); }
.tab__name { font-family: var(--serif); font-size: clamp(1.25rem, 2vw, 1.625rem); line-height: 1.15; }
.tab__meta { font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }

.tabs__panel {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: var(--gap);
  padding-top: clamp(2rem, 4vw, 3rem);
}
html:not(.js) .tabs__panel + .tabs__panel { margin-top: 3rem; border-top: var(--lisere) var(--bleu); }

.panel__facts { grid-column: 1 / 7; }
.panel__title { font-size: clamp(1.625rem, 2.8vw, 2.25rem); }

.faits--grand { margin-top: 1.5rem; }
.faits--grand dd { font-size: 1.3125rem; line-height: 1.4; }
.faits--grand dd a { font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; }
.faits__precision { display: block; margin-top: 0.25rem; font-family: var(--sans); font-size: 0.9375rem; line-height: 1.45; color: var(--encre-douce); }

.panel__note { font-size: 1.0625rem; }
.panel__note a { white-space: nowrap; }

.lien-annonce { margin-top: 1rem; font-family: var(--sans); font-size: 0.875rem; }
.lien-annonce a,
.lien-discret { color: var(--encre-douce); }

.checklist {
  grid-column: 8 / -1;
  align-self: start;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  background: var(--brume);
  border-top: var(--lisere) var(--bleu);
}
.checklist__title { font-size: 1.375rem; }
.checklist__hint { margin: 0.35rem 0 1rem; font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }
.checklist__list { margin: 0; padding: 0; list-style: none; }
.checklist__list li + li { border-top: 1px solid var(--filet); }
.checklist__list label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.7rem 0;
  font-size: 1.0625rem;
  line-height: 1.4;
  cursor: pointer;
}
.checklist__list input {
  flex: none;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0.1rem 0 0;
  accent-color: var(--marine);
}
.checklist__list label:has(input:checked) { color: var(--encre-douce); }
.checklist__count {
  margin-top: 1rem;
  padding-top: 0.85rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--marine);
  border-top: 1px solid var(--filet);
}

@media (max-width: 60rem) {
  .admissions__title,
  .admissions__lead,
  .panel__facts,
  .checklist { grid-column: 1 / -1; }
  .admissions__lead { margin-top: 1.25rem; }
  .checklist { margin-top: 2rem; }
}

@media (max-width: 32.5rem) {
  .tab { padding: 0.85rem 0.6rem 0.95rem; }
  .tab__meta { display: none; }
}

/* Pédagogie */

.section--pedagogie { background: var(--ciel); }
.section--pedagogie a { color: var(--marine); }

.pedagogie__head { grid-column: 1 / 6; }
.pedagogie__head .lead { margin-top: 1.5rem; }

.citation { margin: 2.5rem 0 0; }
.citation blockquote { margin: 0; }
.citation blockquote p { font-size: clamp(1.75rem, 3vw, 2.5rem); font-style: italic; line-height: 1.2; }
.citation figcaption { margin-top: 0.6rem; font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }

.piliers {
  grid-column: 7 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 4vw, 3rem) var(--gap);
  margin: 0;
  padding: 0;
  list-style: none;
}
.pilier { padding-top: 1.25rem; border-top: var(--lisere) var(--marine); }
.pilier:nth-child(even) { margin-top: clamp(2rem, 6vw, 5rem); }
.pilier h3 { margin-bottom: 0.75rem; }
.pilier p { font-size: 1.0625rem; }
.pilier .pilier__lien { margin-top: 0.75rem; font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; }

@media (max-width: 60rem) {
  .pedagogie__head,
  .piliers { grid-column: 1 / -1; }
  .piliers { margin-top: 3rem; }
}

@media (max-width: 40rem) {
  .piliers { grid-template-columns: 1fr; }
  .pilier:nth-child(even) { margin-top: 0; }
}

/* Vie universitaire */

.vie__title { grid-column: 1 / 6; }
.vie__event { grid-column: 7 / -1; }
.vie__event-title { font-size: clamp(1.625rem, 2.8vw, 2.25rem); line-height: 1.2; }
.vie__date { margin: 0.75rem 0 1.25rem; font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; color: var(--bleu); }
.vie__event p:last-child { max-width: 34em; }

/* Mosaïque : rangées justifiées, chaque photo garde ses proportions,
   aucune n’est affichée au-delà de sa largeur native (586–590 px). */
.mosaique { max-width: 70rem; margin-top: clamp(3rem, 6vw, 4.5rem); }
.mosaique__row { display: flex; gap: 1rem; align-items: flex-start; }
.mosaique__row + .mosaique__row { margin-top: 1.5rem; }
.tile { flex: var(--ar) 1 0; min-width: 0; margin: 0; }
.tile__link { display: block; cursor: zoom-in; }
.tile__link img { width: 100%; }
.tile figcaption { margin-top: 0.6rem; font-family: var(--sans); font-size: 0.875rem; line-height: 1.4; color: var(--encre-douce); }
.mosaique__note { margin-top: 1.75rem; font-family: var(--sans); font-size: 0.875rem; color: var(--encre-douce); }

@media (max-width: 60rem) {
  .vie__title,
  .vie__event { grid-column: 1 / -1; }
  .vie__event { margin-top: 1.5rem; }
}

@media (max-width: 40rem) {
  .mosaique__row { display: block; }
  .tile + .tile { margin-top: 1.5rem; }
  .tile__link img { max-width: 100%; }
}

/* Actualités */

.section--actualites { background: var(--brume); }

.actualites__head { grid-column: 1 / 5; }
.actualites__head .lead { margin-top: 1.25rem; }

.fil { grid-column: 6 / -1; margin: 0; padding: 0; list-style: none; }
.fil__item { padding: 1.75rem 0; border-top: 1px solid var(--filet); }
.fil__item:first-child { padding-top: 0; border-top: 0; }
.fil__item article { display: grid; grid-template-columns: 10.5rem 1fr; gap: var(--gap); }
.fil__date { margin: 0; padding-top: 0.35rem; font-family: var(--sans); font-size: 0.9375rem; font-weight: 600; color: var(--bleu); }
.fil__body h3 { margin-bottom: 0.6rem; }
.fil__body p { max-width: 36em; }
.fil__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.5rem;
  margin-top: 0.85rem;
  font-family: var(--sans);
}
.lien-fort { font-size: 0.9375rem; font-weight: 600; color: var(--marine); }
.lien-discret { font-size: 0.875rem; }

@media (max-width: 60rem) {
  .actualites__head,
  .fil { grid-column: 1 / -1; }
  .fil { margin-top: 2.5rem; }
}

@media (max-width: 40rem) {
  .fil__item article { grid-template-columns: 1fr; gap: 0.35rem; }
}

/* Contact */

.section--contact { color: var(--blanc); background: var(--marine); }
.section--contact a { color: var(--blanc); }

.contact__head { grid-column: 1 / 6; }
.contact__head .lead { margin-top: 1.25rem; color: var(--ciel-texte); }

.contact__lignes { grid-column: 7 / -1; margin: 0; }
.contact__ligne { padding: 1.25rem 0; border-top: 1px solid rgba(207, 228, 248, 0.22); }
.contact__ligne:first-child { padding-top: 0; border-top: 0; }
.contact__ligne dt { font-family: var(--sans); font-size: 0.875rem; font-weight: 600; color: var(--ciel-texte); }
.contact__ligne dd { margin: 0.35rem 0 0; }
.contact__grand {
  display: block;
  width: fit-content;
  font-size: clamp(1.75rem, 3.6vw, 2.75rem);
  line-height: 1.25;
  text-decoration: none;
  font-variant-numeric: lining-nums;
}
.contact__grand:hover { text-decoration: underline; text-decoration-thickness: 2px; }
.contact__moyen { font-size: clamp(1.125rem, 2vw, 1.375rem); overflow-wrap: anywhere; }

.contact__adresse {
  grid-column: 7 / -1;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: var(--lisere) var(--ciel);
}
.contact__adresse h3 { font-family: var(--sans); font-size: 0.875rem; font-weight: 600; color: var(--ciel-texte); }
.contact__adresse address { margin: 0.6rem 0 1.25rem; font-size: 1.3125rem; font-style: normal; line-height: 1.5; }
.copy-status { min-height: 1.5em; margin-top: 0.75rem; font-family: var(--sans); font-size: 0.9375rem; color: var(--ciel-texte); }

@media (max-width: 60rem) {
  .contact__head,
  .contact__lignes,
  .contact__adresse { grid-column: 1 / -1; }
  .contact__lignes { margin-top: 2.5rem; }
}

/* Pied de page */

.site-footer {
  padding-block: 3rem;
  font-family: var(--sans);
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--ciel-texte);
  background: var(--marine-nuit);
}
.site-footer a { color: var(--blanc); }
.footer__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.5rem var(--gap);
  align-items: start;
}
.footer__brand { grid-column: 1 / 5; display: flex; gap: 1rem; align-items: center; }
.footer__brand img { width: 3.5rem; height: 3.5rem; border-radius: 50%; }
.footer__brand strong { font-family: var(--serif); font-size: 1.0625rem; font-weight: 400; color: var(--blanc); }
.footer__actes { grid-column: 5 / 9; }
.footer__note { grid-column: 9 / -1; }
.footer__top { grid-column: 1 / -1; margin: 0; padding-top: 1.25rem; border-top: 1px solid rgba(207, 228, 248, 0.16); }

@media (max-width: 60rem) {
  .footer__brand,
  .footer__actes,
  .footer__note { grid-column: 1 / -1; }
}

/* Visionneuse photo */

.lightbox {
  max-width: min(100vw - 2rem, 40rem);
  max-height: calc(100vh - 2rem);
  padding: 0;
  color: var(--blanc);
  background: transparent;
  border: 0;
  overflow: visible;
}
.lightbox::backdrop { background: rgba(7, 29, 76, 0.92); }
.lightbox__figure { display: flex; flex-direction: column; gap: 0.75rem; margin: 0; }
.lightbox__img {
  order: -1;
  align-self: center; /* pas d’étirement : jamais au-delà de la taille native */
  width: auto;
  max-width: 100%;
  max-height: calc(100vh - 13rem);
  height: auto;
  margin-inline: auto;
}
.lightbox__caption { font-family: var(--sans); font-size: 0.9375rem; line-height: 1.45; }
.lightbox__caption span { display: block; }
.lightbox__event { margin-top: 0.15rem; color: var(--ciel-texte); }
.lightbox__bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.75rem; margin-top: 1rem; }
.lightbox__count { margin: 0; font-family: var(--sans); font-size: 0.875rem; color: var(--ciel-texte); }
.lightbox__controls { display: flex; flex-wrap: wrap; gap: 0.5rem; }

@media print {
  .site-header, .menu-toggle, .tabs__list, .filters, .lightbox, .btn { display: none !important; }
  .tabs__panel[hidden] { display: grid !important; }
  .hero, .section--contact, .site-footer { color: #000; background: none; }
}