/* ============================================================
   SFOG INF+ — thème dédié (teal), distinct du site principal
   et de SFOG Campus. Chargé APRÈS style.css (réutilise le reset,
   les fonts et la base .nav-toggle).
   ============================================================ */
:root {
  --inf-teal: #17a595;
  --inf-teal-2: #12b3a0;
  --inf-teal-dark: #0d7d72;
  --inf-deep: #0a5f57;
  --inf-ink: #143138;
  --inf-ink-soft: #4d6a70;
  --inf-cream: #f6f1e4;
}

body.inf { background: #fff; color: var(--inf-ink); }

.inf-container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 24px; }
#groupe, #missions { scroll-margin-top: 90px; }

/* ---------- Header flottant (barre blanche arrondie sur le hero) ---------- */
.inf-header { position: sticky; top: 14px; z-index: 60; padding: 14px 16px 0; background: transparent; }
.inf-header__bar {
  max-width: 1120px;
  margin: 0 auto;
  padding: 11px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 14px 34px rgba(13, 90, 80, .16);
}

/* Logo : logotype couleur (pastille teal + glyphe + « SFOG INF+ ») */
.inf-logo { display: flex; align-items: center; text-decoration: none; }
.inf-logo img { height: 46px; width: auto; display: block; }

/* Nav : point teal au survol / actif */
.inf-nav { display: flex; gap: 28px; flex-wrap: wrap; }
.inf-nav a { position: relative; color: #3f5a60; text-decoration: none; font-weight: 600; font-size: 15px; transition: color .2s ease; }
.inf-nav a::after {
  content: ''; position: absolute; left: 50%; bottom: -11px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--inf-teal); transform: translateX(-50%) scale(0); transition: transform .2s ease;
}
.inf-nav a:hover, .inf-nav a.is-active { color: var(--inf-teal); }
.inf-nav a:hover::after, .inf-nav a.is-active::after { transform: translateX(-50%) scale(1); }

/* Hamburger sur barre blanche : traits foncés */
.inf-header .nav-toggle { border-color: #cfe7e3; }
.inf-header .nav-toggle span { background: var(--inf-ink); }
.inf-header.is-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.inf-header.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
.inf-header.is-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.inf-hero { position: relative; margin-top: -80px; min-height: 460px; padding-top: 80px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.inf-hero__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.inf-hero__overlay { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(11, 95, 87, .5), rgba(20, 150, 135, .26)); }
.inf-hero__mark { position: relative; z-index: 2; width: 112px; height: auto; opacity: .92; }

/* ---------- Intro : bloc teal (texte) + panneau visuel (cartes) ---------- */
.inf-intro { position: relative; z-index: 3; margin-top: -70px; display: grid; grid-template-columns: 1fr 1fr; }
.inf-intro__text {
  background: linear-gradient(150deg, var(--inf-teal), var(--inf-teal-dark));
  color: #fff;
  padding: 56px clamp(28px, 5vw, 64px);
  display: flex; flex-direction: column; justify-content: center;
}
.inf-intro__text h1 { font-size: clamp(17px, 2.3vw, 21px); font-weight: 600; line-height: 1.42; margin: 0 0 22px; }
.inf-intro__text p { font-size: 15px; line-height: 1.75; color: rgba(255, 255, 255, .9); margin: 0; max-width: 520px; }
.inf-intro__media {
  position: relative;
  min-height: 320px;
  background: #0e3a37 url('../inf/web/cards.jpg') center / cover no-repeat;
}

/* ---------- Bandeau citation ---------- */
.inf-quote { background: var(--inf-cream); padding: 66px 0; }
.inf-quote blockquote {
  margin: 0 auto; max-width: 620px;
  border-left: 3px solid var(--inf-teal);
  padding-left: 24px;
  color: #5a7078; font-size: 15px; line-height: 1.75;
}

/* ---------- Les missions ---------- */
.inf-missions { background: #fff; padding: 82px 0 92px; }
.inf-missions__card {
  position: relative;
  max-width: 840px; margin: 0 auto;
  background: #fff;
  border: 1px solid #cfe7e3;
  border-radius: 24px;
  padding: 64px clamp(28px, 5vw, 60px) 56px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(13, 90, 80, .07);
}
.inf-missions__badge {
  position: absolute; top: -19px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--inf-teal), var(--inf-teal-dark));
  color: #fff; font-weight: 600; font-size: 15px;
  padding: 10px 28px; border-radius: 9px; white-space: nowrap;
  box-shadow: 0 8px 20px rgba(13, 125, 114, .28);
}
.inf-missions__list { list-style: none; max-width: 470px; margin: 14px auto 0; padding: 0; position: relative; z-index: 2; }
.inf-missions__list li { position: relative; padding-left: 28px; margin: 0 0 24px; color: #46626a; font-size: 15px; line-height: 1.6; }
.inf-missions__list li:last-child { margin-bottom: 0; }
.inf-missions__list li::before {
  content: ''; position: absolute; left: 4px; top: 6px;
  width: 7px; height: 7px;
  border-right: 2px solid var(--inf-teal); border-top: 2px solid var(--inf-teal);
  transform: rotate(45deg);
}
.inf-missions__mark {
  position: absolute; right: -30px; top: 50%; transform: translateY(-50%);
  height: 82%; width: auto; opacity: .9; pointer-events: none;
}

/* ---------- Vidéo (Short YouTube, format portrait) ---------- */
.inf-video { background: #eaf5f2; padding: 74px 0; text-align: center; }
.inf-video__title { font-size: 22px; font-weight: 600; color: var(--inf-ink); margin: 0 0 30px; }
.inf-video__frame {
  max-width: 330px;
  margin: 0 auto;
  aspect-ratio: 9 / 16;
  border-radius: 20px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 24px 60px rgba(13, 90, 80, .22);
}
.inf-video__frame iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- Footer ---------- */
.inf-footer { background: linear-gradient(135deg, var(--inf-teal-dark), var(--inf-deep)); color: #d6efeb; padding: 26px 0; text-align: center; font-size: 14px; }
.inf-footer a { color: #fff; text-decoration: none; }

/* ---------- Responsive ---------- */
@media (max-width: 800px) {
  /* Header : menu hamburger */
  .inf-header .nav-toggle { display: flex; order: 2; }
  .inf-header__bar { flex-wrap: wrap; column-gap: 12px; row-gap: 0; }
  .inf-logo { order: 1; }
  .inf-nav { order: 3; flex-basis: 100%; display: none; }
  .inf-header.is-open .inf-nav {
    display: flex; flex-direction: column; align-items: flex-start;
    gap: 2px; margin-top: 8px; padding-top: 10px; border-top: 1px solid #e6efed;
  }
  .inf-header.is-open .inf-nav a { padding: 10px 2px; font-size: 16px; }
  .inf-header.is-open .inf-nav a::after { display: none; }

  /* Intro : empilé */
  .inf-intro { grid-template-columns: 1fr; margin-top: -56px; }
  .inf-intro__text { padding: 44px 26px; }
  .inf-intro__media { min-height: 220px; }
  .inf-missions { padding: 60px 0 70px; }
}