:root {
  --purple: #6463a9;
  --purple-dark: #4e4d8a;
  --ink: #373544;
  --muted: #625f70;
  --paper: #fff;
  --background: #f3f5fa;
  --line: #dedeea;
  --tint: #eeedf6;
  --radius: 16px;
  --serif: 'Roboto Slab', Georgia, serif;
  --sans: Roboto, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; scrollbar-color: var(--purple) var(--background); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.65 var(--sans); }
::selection { background: var(--purple); color: var(--paper); }
a { color: inherit; text-underline-offset: 5px; }
a, button { -webkit-tap-highlight-color: transparent; }
a:hover { color: var(--purple-dark); }
button, input { font: inherit; }
button, summary { cursor: pointer; }
button { color: inherit; }
img { max-width: 100%; display: block; height: auto; }
svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
:focus-visible { outline: 3px solid var(--purple-dark); outline-offset: 5px; }
.wrap { width: min(1200px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 20px; padding: 12px 20px; background: var(--paper); z-index: 10; }
.skip-link:focus { top: 12px; }
.topbar { display: flex; align-items: center; justify-content: space-between; min-height: 48px; color: var(--purple-dark); font-size: 13px; }
.social { display: flex; gap: 20px; align-items: center; }
.social a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; }
.social a:hover { text-decoration: underline; }
.page-shell { margin: 0 20px 20px; border-radius: 30px; background: var(--background); }
.header { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding-block: 30px; }
.brand { flex-shrink: 0; }
.brand img { width: 190px; height: auto; mix-blend-mode: multiply; }
.header nav { display: flex; align-items: center; gap: 26px; }
.header nav > a { font: 16px/1.4 var(--serif); text-decoration: none; min-height: 46px; display: inline-flex; align-items: center; }
.header nav > a:not(.button):hover { text-decoration: underline; }
.nav-current { color: var(--purple-dark); text-decoration: underline !important; text-decoration-thickness: 1px !important; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 12px; background: var(--purple); color: var(--paper); border: 1px solid var(--purple); padding: 12px 20px; border-radius: 5px; min-height: 48px; font-weight: 500; text-decoration: none; transition: background 180ms ease, color 180ms ease; }
.button:hover { color: var(--paper); background: var(--purple-dark); border-color: var(--purple-dark); }
.button-outline { color: var(--purple-dark); background: transparent; }
.menu-toggle { display: none; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.25; margin-top: 0; text-wrap: balance; }
.introduction { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; background: var(--paper); border-radius: var(--radius); padding: 38px; align-items: start; }
h1 { font-size: clamp(25px, 2.5vw, 35px); letter-spacing: -.025em; margin-bottom: 24px; }
h1 span { color: var(--purple); }
.intro-text p { margin: 0 0 15px; }
.intro-text p:last-child { margin-bottom: 8px; }
.intro-text { color: var(--muted); font-size: 15px; line-height: 1.7; }
.editorial summary { color: var(--purple-dark); font-weight: 600; min-height: 44px; display: flex; align-items: center; gap: 10px; list-style: none; width: fit-content; }
.editorial summary::-webkit-details-marker { display: none; }
.editorial[open] summary svg { transform: rotate(180deg); }
.expanded-copy { font-size: 15px; color: var(--muted); padding-top: 10px; }
.expanded-copy ul { padding-left: 20px; }
.expanded-copy li { margin-bottom: 10px; }
.signature { margin: 20px 0 0; padding-top: 18px; border-top: 1px solid var(--line); }
.signature strong { display: block; color: var(--purple-dark); font: 500 20px/1.4 var(--serif); }
.signature span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
.gallery { align-self: start; padding-top: 4px; min-width: 0; }
.slides { aspect-ratio: 1.38; background: var(--background); border-radius: 8px; overflow: hidden; display: grid; }
.slides img { width: 100%; height: 100%; object-fit: contain; grid-area: 1 / 1; }
[hidden] { display: none !important; }
.gallery-controls { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 14px; }
.icon-button { background: transparent; border: 1px solid var(--line); border-radius: 50%; width: 44px; height: 44px; display: grid; place-items: center; color: var(--purple-dark); flex-shrink: 0; }
.icon-button:hover { background: var(--tint); }
.slide-dots { display: flex; justify-content: center; flex-wrap: wrap; flex: 1; }
.slide-dot { border: 0; background: transparent; width: 44px; height: 44px; display: grid; place-items: center; padding: 0; }
.slide-dot span { height: 6px; width: 6px; background: var(--muted); border-radius: 50%; transition: transform 180ms ease; }
.slide-dot[aria-pressed=true] span { background: var(--purple-dark); transform: scale(1.6); }
.photo-count { text-align: center; font-size: 12px; color: var(--muted); margin: 4px 0 0; font-variant-numeric: tabular-nums; }
.newsletter { margin-top: 28px; padding: 28px 38px; background: var(--paper); border-radius: var(--radius); display: grid; grid-template-columns: .85fr 1.15fr; align-items: center; gap: 52px; }
.newsletter h2 { font-size: 25px; color: var(--purple-dark); margin: 0; }
.newsletter label { display: block; font-size: 14px; margin-bottom: 7px; }
.subscribe-row { display: flex; gap: 10px; }
.subscribe-row input { min-width: 0; flex: 1; background: var(--paper); border: 1px solid var(--muted); border-radius: 5px; padding: 11px 14px; color: var(--ink); caret-color: var(--purple); }
input::placeholder { color: var(--muted); opacity: 1; }
.newsletter form > p { margin: 7px 0 0; font-size: 12px; color: var(--muted); }
.formations { padding-block: 58px 66px; }
.section-heading { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.section-heading h2 { margin: 0; color: var(--purple-dark); font-size: 36px; }
.section-heading > span { color: var(--muted); font-variant-numeric: tabular-nums; }
.training-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 28px; row-gap: 42px; }
.training { min-width: 0; display: flex; flex-direction: column; }
.training-image { display: block; border-radius: 8px; overflow: hidden; background: var(--paper); }
.training-image img { width: 100%; aspect-ratio: 1754 / 1241; object-fit: contain; transition: opacity 180ms ease; }
.training-image:hover img { opacity: .85; }
.training-copy { padding: 18px 0 0; display: flex; flex-direction: column; flex: 1; }
.date { color: var(--purple-dark); font-size: 14px; font-weight: 600; margin: 0 0 10px; font-variant-numeric: tabular-nums; }
.training h3 { font-size: 21px; line-height: 1.4; margin: 0 0 12px; }
.training h3 a { text-decoration: none; }
.training h3 a:hover { text-decoration: underline; }
.excerpt { font-size: 14px; color: var(--muted); margin: 0 0 16px; line-height: 1.65; }
.read-link { color: var(--purple-dark); font-size: 14px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 44px; margin-top: auto; padding-block: 9px; border-bottom: 1px solid var(--line); text-decoration: none; }
.read-link:hover { border-color: var(--purple); }
.footer { border-top: 1px solid var(--line); }
.footer-main { padding-block: 40px; display: grid; grid-template-columns: 1fr 1fr .8fr; gap: 50px; align-items: start; }
.contact h2 { color: var(--purple); font-size: 35px; margin-bottom: 4px; }
.footer-name { font-family: var(--serif); margin: 0 0 12px; }
address { font-style: normal; font-size: 14px; color: var(--muted); }
address a { display: inline-block; padding-block: 7px; }
.footer-links { padding-top: 8px; display: flex; flex-direction: column; gap: 4px; }
.footer-links a { display: flex; align-items: center; min-height: 44px; font-size: 14px; text-decoration: none; color: var(--muted); }
.footer-links a:hover { text-decoration: underline; color: var(--purple-dark); }
.certification img { width: 150px; margin-bottom: 10px; }
.certification a { font-size: 13px; color: var(--purple-dark); display: flex; gap: 8px; align-items: center; min-height: 44px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-bottom > a { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; }
.back-top svg { transform: rotate(-90deg); }
@media (max-width: 1100px) {
  .wrap { width: calc(100% - 48px); }
  .header { gap: 20px; }
  .brand img { width: 155px; }
  .header nav { gap: 16px; }
  .header nav > a { font-size: 14px; }
  .header .button { padding-inline: 14px; }
  .introduction { padding: 28px; gap: 28px; }
  .newsletter { padding: 26px 28px; gap: 28px; }
}
@media (max-width: 850px) {
  .page-shell { margin-inline: 12px; border-radius: 20px; }
  .header { flex-wrap: wrap; padding-block: 22px; }
  .menu-toggle { display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 5px; background: var(--paper); min-height: 46px; padding: 8px 14px; color: var(--purple-dark); }
  .header nav { flex-basis: 100%; flex-wrap: wrap; }
  .js .header nav { display: none; }
  .js .header nav.is-open { display: flex; }
  .introduction { grid-template-columns: 1fr; gap: 30px; }
  .intro-text { font-size: 16px; }
  h1 { font-size: 32px; }
  .gallery { width: 100%; max-width: 580px; justify-self: center; }
  .slides { aspect-ratio: 1.6; }
  .newsletter { grid-template-columns: 1fr; gap: 20px; }
  .newsletter h2 br { display: none; }
  .training-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 540px) {
  .wrap { width: calc(100% - 32px); }
  .topbar { font-size: 12px; min-height: 38px; justify-content: center; }
  .topbar .social { display: none; }
  .page-shell { margin-inline: 6px; border-radius: 18px; }
  .brand img { width: 145px; }
  .header nav { align-items: stretch; gap: 8px; }
  .header nav > a { flex-basis: 100%; padding: 12px; }
  .introduction { padding: 24px 20px; gap: 24px; }
  h1 { font-size: 27px; margin-bottom: 20px; }
  .intro-text { font-size: 15px; }
  .signature { margin-top: 14px; }
  .slides { aspect-ratio: 1.38; }
  .gallery-controls { gap: 18px; justify-content: center; }
  .slide-dots { display: flex; flex-basis: 100%; order: 3; }
  .gallery-controls { flex-wrap: wrap; gap: 6px; }
  .newsletter { margin-top: 18px; padding: 24px 20px; }
  .newsletter h2 { font-size: 23px; }
  .subscribe-row { flex-direction: column; }
  .subscribe-row input { width: 100%; min-height: 48px; }
  .formations { padding-block: 40px; }
  .section-heading h2 { font-size: 29px; }
  .section-heading > span { font-size: 14px; }
  .training-grid { grid-template-columns: 1fr; gap: 32px; }
  .training h3 { font-size: 22px; }
  .excerpt { font-size: 15px; }
  .footer-main { grid-template-columns: 1fr; gap: 22px; padding-block: 30px; }
  .footer-links { padding-top: 0; }
  .footer-bottom { flex-wrap: wrap; gap: 8px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

.gallery-pause { display:block; margin:8px auto 0; min-height:44px; padding:8px 14px; border:0; background:transparent; color:var(--purple-dark); font:inherit; text-decoration:underline; cursor:pointer; }

.gallery-controls { flex-wrap:wrap; justify-content:center; }
.slide-dots { flex-basis:100%; order:3; }