/* Direction artistique : moderne épuré, structuré par une grille éditoriale et une confiance institutionnelle. */
:root {
  --color-primary: #0d3d7a;
  --color-primary-deep: #092c59;
  --color-accent: #0d3d7a;
  --color-ink: #111111;
  --color-muted: #536171;
  --color-line: #d8e0e9;
  --color-surface: #f3f6f9;
  --color-paper: #fbfcfd;
  --color-white: #fdfdfc;
  --font-display: "Manrope", Arial, sans-serif;
  --font-body: "Inter", Arial, sans-serif;
  --space-1: .35rem;
  --space-2: .65rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6rem;
  --radius: 10px;
  --shadow: 0 14px 40px rgba(13, 61, 122, .09);
  --duration: 420ms;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-primary-deep); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { color: var(--color-primary); }
h1, h2, h3, h4 { margin: 0 0 var(--space-3); font-family: var(--font-display); line-height: 1.08; letter-spacing: -.035em; }
h1 { font-size: clamp(2.45rem, 7vw, 5.8rem); font-weight: 800; }
h2 { font-size: clamp(2rem, 4vw, 3.6rem); font-weight: 800; }
h3 { font-size: clamp(1.35rem, 2.4vw, 2rem); font-weight: 750; }
h4 { font-size: 1.15rem; font-weight: 750; }
p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0 0 var(--space-4); padding-left: 1.25rem; }
blockquote { margin: var(--space-5) 0; padding: var(--space-4) var(--space-5); border-left: 3px solid var(--color-primary); background: var(--color-surface); font-size: 1.15rem; }
table { width: 100%; border-collapse: collapse; margin: var(--space-4) 0; }
th, td { padding: .8rem; border-bottom: 1px solid var(--color-line); text-align: left; }
input, textarea, button { font: inherit; }
input, textarea { width: 100%; padding: .85rem 1rem; border: 1px solid #aebdcb; border-radius: var(--radius); background: var(--color-white); color: var(--color-ink); }
textarea { min-height: 10rem; resize: vertical; }
button { cursor: pointer; }

.container { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.section { padding: var(--space-7) 0; }
.section--alt { background: var(--color-surface); }
.section__head { max-width: 760px; margin-bottom: var(--space-6); }
.grid { display: grid; gap: var(--space-4); }
.grid--2, .grid--3 { grid-template-columns: 1fr; }
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }

.skip-link { position: fixed; z-index: 20; top: .5rem; left: .5rem; padding: .7rem 1rem; color: var(--color-white); background: var(--color-primary-deep); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header { position: sticky; top: 0; z-index: 10; border-bottom: 1px solid var(--color-line); background: rgba(253, 253, 252, .96); }
.site-header__inner { display: flex; min-height: 70px; align-items: center; justify-content: space-between; gap: var(--space-3); }
.brand, .footer-wordmark { color: var(--color-primary-deep); font-family: var(--font-display); font-weight: 800; letter-spacing: -.04em; text-decoration: none; }
.brand { font-size: 1.05rem; }
.nav { display: none; align-items: center; gap: clamp(.7rem, 1.5vw, 1.35rem); }
.nav__link, .nav__cta { font-size: .82rem; font-weight: 700; text-decoration: none; }
.nav__link { color: var(--color-ink); }
.nav__link:hover { color: var(--color-primary); }
.nav__cta { padding: .65rem .9rem; color: var(--color-white); background: var(--color-primary); border-radius: var(--radius); }
.nav-toggle { border: 1px solid var(--color-line); border-radius: var(--radius); padding: .55rem .7rem; color: var(--color-primary-deep); background: transparent; }

.page-hero { padding: var(--space-7) 0 var(--space-6); background: var(--color-surface); border-bottom: 1px solid var(--color-line); }
.page-hero__title { max-width: 900px; }
.page-hero__intro { max-width: 680px; margin: var(--space-4) 0 0; color: var(--color-muted); font-size: clamp(1.05rem, 2vw, 1.3rem); }

.eyebrow { display: block; margin-bottom: var(--space-2); color: var(--color-primary); font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.lead { color: var(--color-muted); font-size: clamp(1.1rem, 2vw, 1.35rem); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: .7rem 1.15rem; border: 1px solid transparent; border-radius: var(--radius); font-weight: 750; text-decoration: none; transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), color var(--duration) var(--ease); }
.btn:hover { transform: translateY(-2px); }
.btn--primary { color: var(--color-white); background: var(--color-primary); }
.btn--primary:hover { color: var(--color-white); background: var(--color-primary-deep); }
.btn--ghost { color: var(--color-primary-deep); border-color: var(--color-primary); background: transparent; }
.card { padding: var(--space-5); border: 1px solid var(--color-line); border-radius: var(--radius); background: var(--color-paper); box-shadow: var(--shadow); }
.card__title { margin-bottom: var(--space-2); }
.card__body { color: var(--color-muted); }
.badge { display: inline-block; padding: .3rem .65rem; border: 1px solid #a7bdd5; border-radius: var(--radius); color: var(--color-primary-deep); background: #edf3f9; font-size: .78rem; font-weight: 750; }
.list-plain { padding: 0; list-style: none; }
.list-plain li { padding: .7rem 0; border-bottom: 1px solid var(--color-line); }
.media { aspect-ratio: 16 / 10; overflow: hidden; border-radius: var(--radius); }
.media--placeholder { display: grid; place-items: center; border: 1px solid #b9c9d9; background-color: var(--color-surface); background-image: linear-gradient(135deg, transparent 48%, rgba(13,61,122,.08) 49%, transparent 51%), linear-gradient(45deg, transparent 48%, rgba(13,61,122,.06) 49%, transparent 51%); background-size: 28px 28px; }

.site-footer { padding: var(--space-7) 0 var(--space-4); color: var(--color-white); background: var(--color-primary-deep); }
.site-footer__inner { width: min(calc(100% - 2rem), var(--container)); margin-inline: auto; }
.footer-wordmark { display: block; margin-bottom: var(--space-5); color: var(--color-white); font-size: clamp(1.7rem, 4vw, 3rem); }
.footer-contact { margin-bottom: var(--space-5); color: #dce8f4; }
.footer-contact a { color: var(--color-white); }
.footer-nav { display: flex; flex-wrap: wrap; gap: .7rem 1.2rem; margin-bottom: var(--space-5); }
.footer-nav a, .footer-legal a { color: #dce8f4; }
.footer-legal { padding-top: var(--space-4); border-top: 1px solid rgba(255,255,255,.22); color: #dce8f4; font-size: .85rem; }
[data-reveal] { opacity: 0; transform: translateY(14px); }
[data-reveal].is-visible { opacity: 1; transform: translateY(0); transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }

@media (min-width: 640px) {
  .container, .site-footer__inner { width: min(calc(100% - 3rem), var(--container)); }
  .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .section { padding: var(--space-8) 0; }
  .page-hero { padding: var(--space-8) 0 var(--space-7); }
}
@media (min-width: 1024px) {
  .nav { display: flex; }
  .nav-toggle { display: none; }
  .brand { white-space: nowrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}