/* ==========================================================================
   HUMAIN & PROGRÈS — style.css
   Feuille de style partagée du site (chargée sur toutes les pages).
   Contient : tokens, base, composants communs (nav, footer, boutons,
   CTA finale, formulaire) et fondations accessibilité.
   Le CSS propre à chaque page est chargé séparément (voir <link> en
   bas de <head> de chaque gabarit) pour rester lisible et modifiable
   page par page sans toucher au socle commun.
   ========================================================================== */

:root{
  --navy: #0E1B2E;
  --navy-soft: #17293F;
  --navy-line: rgba(255,255,255,.14);
  --terracotta: #D4603A;
  --terracotta-dark: #AD4B2B;
  --paper: #F3EFE6;
  --paper-dim: #EAE4D6;
  --ink: #17202B;
  --ink-soft: #5C5648;
  --mist: rgba(255,255,255,.78);
  --mist-dim: rgba(255,255,255,.52);
  --line-dark: rgba(23,32,43,.12);

  --display: 'Fraunces', serif;
  --body: 'Public Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --wrap: 1180px;
  --gutter: clamp(24px, 5vw, 96px);
}

/* ============ RESET / BASE ============ */
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img, svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
h1, h2, h3, h4{ font-family:var(--display); font-weight:520; margin:0; letter-spacing:-0.01em; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }

.wrap{ max-width:var(--wrap); margin:0 auto; padding-left:var(--gutter); padding-right:var(--gutter); }

/* ============ ACCESSIBILITÉ — BASE ============ */
.skip-link{
  position:absolute;
  left:12px; top:-60px;
  background:#fff;
  color:var(--navy);
  font-family:var(--body);
  font-weight:600;
  font-size:14px;
  padding:12px 18px;
  border-radius:2px;
  z-index:200;
  transition:top .15s ease;
}
.skip-link:focus{ top:12px; }

:focus-visible{
  outline:2px solid var(--terracotta);
  outline-offset:3px;
}
/* Sur fond bleu nuit, garder un focus visible avec un contraste suffisant */
.section-navy :focus-visible,
.nav :focus-visible,
.cta-final :focus-visible,
.acc-contact :focus-visible,
.site-footer :focus-visible{
  outline-color:#fff;
}

@media(prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
}

/* ============ TYPO UTILITAIRES ============ */
.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--terracotta);
  margin:0 0 18px;
}
.eyebrow--light{ color:var(--mist-dim); }

/* ============ BOUTONS / LIENS ============ */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--body); font-weight:600; font-size:15px;
  padding:14px 26px; border-radius:2px;
  border:none; cursor:pointer;
  transition:transform .18s ease, background .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn--cta{ background:var(--terracotta); color:#fff; }
.btn--cta:hover{ background:var(--terracotta-dark); transform:translateY(-1px); }
.btn--cta:disabled{ opacity:.6; cursor:default; transform:none; }
.btn--lg{ padding:16px 34px; font-size:16px; }
.btn--ghost{ border:1px solid var(--navy-line); color:var(--mist); background:transparent; }
.btn--ghost:hover{ border-color:var(--mist); transform:translateY(-1px); }

.link-arrow{
  display:inline-flex; align-items:center; gap:8px;
  font-weight:600; font-size:15px; color:var(--navy);
  border-bottom:1px solid var(--terracotta); padding-bottom:3px;
}
.link-arrow span{ transition:transform .18s ease; }
.link-arrow:hover span{ transform:translateX(4px); }
.link-arrow--light{ color:#fff; }

/* ============ NAVIGATION ============ */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(14,27,46,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--navy-line);
}
.nav__inner{
  max-width:var(--wrap); margin:0 auto;
  padding:18px var(--gutter);
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.nav__logo{ font-family:var(--display); font-size:18px; letter-spacing:.02em; color:#fff; }
.nav__links{ display:flex; gap:34px; }
.nav__links a{ font-size:14px; color:var(--mist-dim); transition:color .15s ease; padding:4px 0; }
.nav__links a:hover{ color:#fff; }
.nav__links a.is-active{ color:#fff; border-bottom:1px solid var(--terracotta); }
.nav__cta{ padding:10px 20px; font-size:13px; }
.nav__cta[aria-disabled="true"]{ opacity:.55; pointer-events:none; }

.nav__toggle{
  display:none;
  width:38px; height:38px;
  align-items:center; justify-content:center;
  background:transparent; border:1px solid var(--navy-line);
  border-radius:2px;
  color:#fff;
  cursor:pointer;
}
.nav__toggle-icon,
.nav__toggle-icon::before,
.nav__toggle-icon::after{
  content:"";
  display:block;
  width:16px; height:1px;
  background:#fff;
  position:relative;
  transition:transform .2s ease, opacity .2s ease;
}
.nav__toggle-icon::before{ position:absolute; top:-5px; }
.nav__toggle-icon::after{ position:absolute; top:5px; }
.nav.is-open .nav__toggle-icon{ background:transparent; }
.nav.is-open .nav__toggle-icon::before{ transform:translateY(5px) rotate(45deg); }
.nav.is-open .nav__toggle-icon::after{ transform:translateY(-5px) rotate(-45deg); }

@media(max-width:760px){
  .nav__toggle{ display:flex; }
  .nav__links{
    display:flex;
    flex-direction:column;
    gap:0;
    position:fixed;
    top:0; right:0;
    height:100vh;
    width:min(78vw, 320px);
    background:var(--navy);
    padding:96px 32px 32px;
    transform:translateX(100%);
    transition:transform .28s ease;
    border-left:1px solid var(--navy-line);
  }
  .nav.is-open .nav__links{ transform:translateX(0); }
  .nav__links a{
    font-size:17px;
    padding:16px 0;
    border-bottom:1px solid var(--navy-line);
    color:var(--mist);
  }
  .nav__links a.is-active{ color:#fff; }
  .nav__cta{ display:none; }
  .nav__links .nav__cta-mobile{
    display:inline-flex;
    margin-top:28px;
  }
  .nav__scrim{
    display:none;
    position:fixed; inset:0;
    background:rgba(14,27,46,.5);
    z-index:40;
  }
  .nav.is-open ~ .nav__scrim,
  .nav.is-open .nav__scrim{ display:block; }
}
@media(min-width:761px){
  .nav__scrim{ display:none !important; }
  .nav__cta-mobile{ display:none; }
}

/* ============ SECTIONS — BASE ============ */
section{ position:relative; }
.section-navy{ background:var(--navy); color:var(--mist); }
.section-navy h1, .section-navy h2, .section-navy h3{ color:#fff; }
.section-paper{ background:var(--paper); }
.section-paper-dim{ background:var(--paper-dim); }
.pad{ padding:clamp(76px,10vw,140px) 0; }
.pad-tight{ padding:clamp(56px,7vw,92px) 0; }

/* ============ REVEAL AU SCROLL ============ */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }
@media(prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
}

/* ============ CTA FINALE (composant partagé — Accueil / À propos / Notre approche / Formations) ============ */
.cta-final{ background:var(--navy); color:var(--mist); }
.cta-final__inner{ max-width:640px; padding:clamp(90px,12vw,150px) 0; }
.cta-final h2{ font-size:clamp(30px,4.2vw,48px); color:#fff; font-weight:500; max-width:18ch; }
.cta-final p{ margin-top:22px; font-size:16px; line-height:1.75; color:var(--mist); max-width:50ch; }
.cta-final .btn{ margin-top:40px; }
.cta-final__signature{
  margin-top:56px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--mist-dim);
}

/* ============ FOOTER DE RÉFÉRENCE (toutes les pages) ============ */
.site-footer{ background:var(--navy); color:var(--mist); padding:clamp(56px,7vw,80px) 0 32px; }
.site-footer__top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:32px;
  padding-bottom:clamp(36px,5vw,52px);
  border-bottom:1px solid var(--navy-line);
}
.site-footer__brand{ font-family:var(--display); font-size:19px; color:#fff; }
.site-footer__baseline{ margin-top:10px; font-size:14px; color:var(--mist-dim); max-width:32ch; }
.site-footer__nav{ display:flex; flex-wrap:wrap; gap:22px 28px; }
.site-footer__nav a{ font-size:13.5px; color:var(--mist); }
.site-footer__nav a:hover, .site-footer__nav a.is-active{ color:#fff; }
.site-footer__bottom{
  margin-top:28px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:12.5px;
  color:var(--mist-dim);
}
.site-footer__bottom a:hover{ color:#fff; }

/* ============ RESPONSIVE GLOBAL — GARDE-FOUS ============ */
html, body{ max-width:100%; overflow-x:hidden; }
