/* Your Communication — mise en forme de tout le site.
   Les couleurs, polices et espacements se règlent dans le bloc :root ci-dessous. */

@font-face { font-family: 'Open Sans'; font-weight: 300; font-style: normal; font-display: swap; src: url('../fonts/OpenSans-Light.ttf') format('truetype'); }
@font-face { font-family: 'Open Sans'; font-weight: 400; font-style: normal; font-display: swap; src: url('../fonts/OpenSans-Regular.ttf') format('truetype'); }
@font-face { font-family: 'Open Sans'; font-weight: 600; font-style: normal; font-display: swap; src: url('../fonts/OpenSans-SemiBold.ttf') format('truetype'); }

:root {
  --color-primary: #15233F;      /* bleu nuit du logo */
  --color-secondary: #2F6FED;    /* bleu vif des ondes */
  --color-accent: #6FA0FF;       /* bleu clair, sur fond sombre */
  --color-text: #1C2740;
  --color-text-soft: #55617A;
  --color-background: #FFFFFF;
  --color-surface: #F1F5FC;      /* bleu très pâle */
  --color-line: #D8E0EE;
  --color-on-dark: #FFFFFF;
  --color-on-dark-soft: #B9C6E0;
  --color-footer: #0E182D;
  --color-whatsapp: #128C4B;
  --color-error: #B3261E;
  --color-success: #1B6B3A;
  --font-heading: 'Open Sans', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Open Sans', 'Segoe UI', Arial, sans-serif;
  --max-width: 1200px;
  --spacing-section: 80px;
  --gutter: 20px;
  --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-background);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
}
img { display: block; max-width: 100%; height: auto; }
a { color: var(--color-secondary); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
[hidden] { display: none !important; }

h1, h2, h3 { font-family: var(--font-heading); color: var(--color-primary); text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.6rem); font-weight: 300; line-height: 1.12; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 300; line-height: 1.2; letter-spacing: -0.015em; }
h3 { font-size: 1.15rem; font-weight: 600; line-height: 1.3; }
h1 strong, h2 strong { font-weight: 600; }

.container { width: 100%; max-width: var(--max-width); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--spacing-section); }
.section--surface { background: var(--color-surface); }
.section--dark { background: var(--color-primary); color: var(--color-on-dark-soft); }
.section--dark h2, .section--dark h3 { color: var(--color-on-dark); }
.section--dark a:not(.btn) { color: var(--color-accent); }

.eyebrow {
  display: block; margin-bottom: 14px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-secondary);
}
.section--dark .eyebrow { color: var(--color-accent); }
.lead { font-size: 1.15rem; color: var(--color-text-soft); max-width: 62ch; }
.section-head { display: grid; gap: 16px; margin-bottom: 44px; }
.section-head--flush { margin-bottom: 0; }

/* Boutons et liens */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px; border: 2px solid var(--color-secondary);
  background: var(--color-secondary); color: var(--color-on-dark);
  font-family: inherit; font-weight: 600; font-size: 1rem; text-decoration: none; line-height: 1.2; cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}
.btn:hover { background: var(--color-primary); border-color: var(--color-primary); }
.btn:disabled { opacity: .6; cursor: default; }
.btn--ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--ghost:hover { background: var(--color-primary); color: var(--color-on-dark); }
.btn--whatsapp { background: var(--color-whatsapp); border-color: var(--color-whatsapp); }
.btn--whatsapp svg { width: 20px; height: 20px; flex: none; }
.section--dark .btn:hover { background: var(--color-on-dark); border-color: var(--color-on-dark); color: var(--color-primary); }
.link-arrow { font-weight: 600; text-decoration: none; }
.link-arrow::after { content: " →"; }
.link-arrow:hover { text-decoration: underline; }

/* Bandeau d'appel tout en haut */
.topbar { background: var(--color-primary); color: var(--color-on-dark-soft); font-size: 0.88rem; }
.topbar-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 24px; padding-block: 9px; }
.topbar-msg { display: none; }
.topbar-msg strong { color: var(--color-on-dark); font-weight: 600; }
.topbar-links { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 20px; }
.topbar a { display: inline-flex; align-items: center; gap: 7px; color: var(--color-on-dark); font-weight: 600; text-decoration: none; }
.topbar a:hover { text-decoration: underline; }
.topbar svg { width: 16px; height: 16px; flex: none; }
.topbar .wa svg { color: #5BE08F; }

/* En-tête */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--color-background); border-bottom: 1px solid var(--color-line); }
.header-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 76px; }
.site-logo img { width: 240px; }
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px;
  background: none; border: 1px solid var(--color-line); border-radius: var(--radius); color: var(--color-primary); cursor: pointer;
}
.site-nav {
  display: none; position: absolute; left: 0; right: 0; top: 100%;
  background: var(--color-background); border-bottom: 1px solid var(--color-line); padding: 12px var(--gutter) 22px;
}
.site-nav.is-open { display: block; }
.site-nav ul { display: grid; gap: 2px; }
.site-nav a { display: block; padding: 11px 4px; color: var(--color-primary); text-decoration: none; font-weight: 600; font-size: 1rem; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-secondary); }
.site-nav .nav-cta { margin-top: 10px; }
.site-nav .nav-cta a { display: inline-flex; color: var(--color-on-dark); padding: 12px 22px; }

/* Ouverture de la page d'accueil */
.hero { padding-block: 48px 64px; background: var(--color-surface); overflow: hidden; }
.hero-grid { display: grid; gap: 40px; align-items: center; }
.hero-text { display: grid; gap: 22px; min-width: 0; }
.hero-text .lead { color: var(--color-text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.week { display: grid; gap: 10px; max-width: 460px; }
.week-days { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.week-day {
  padding: 12px 4px 10px; border-radius: var(--radius); text-align: center;
  background: var(--color-background); border: 1px solid var(--color-line);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-soft);
}
.week-day span { display: block; margin-top: 4px; font-size: 0.68rem; letter-spacing: 0.02em; text-transform: none; font-weight: 400; min-height: 1.2em; }
.week-day.is-on { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-dark); }
.week-day.is-on span { color: var(--color-accent); }
.week-note { font-size: 0.85rem; color: var(--color-text-soft); }
.hero-media { position: relative; min-width: 0; }
.hero-media img.photo { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--radius); }
.hero-media .ondes { position: absolute; right: -30px; top: -46px; width: 150px; opacity: .9; pointer-events: none; }
.hero-media figcaption { margin-top: 10px; font-size: 0.82rem; color: var(--color-text-soft); }

/* Ouverture des pages intérieures */
.page-hero { position: relative; padding-block: 48px 56px; background: var(--color-surface); overflow: hidden; }
.page-hero .container { position: relative; display: grid; gap: 18px; }
.page-hero h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); max-width: 22ch; }
.page-hero .lead { color: var(--color-text); }
.page-hero .ondes { position: absolute; right: var(--gutter); top: -30px; width: 110px; opacity: .22; pointer-events: none; }
/* Variante avec photo en fond : la photo couvre le bandeau sous un voile bleu nuit, le texte passe en blanc */
.page-hero--photo { padding-block: 30px 36px; background: var(--color-primary); }
.page-hero--photo .container { position: static; }
.page-hero-text { position: relative; z-index: 1; display: grid; gap: 12px; min-width: 0; }
.page-hero--photo .hero-media { position: absolute; inset: 0; }
.page-hero--photo .hero-media img.photo { width: 100%; height: 100%; aspect-ratio: auto; border-radius: 0; object-fit: cover; }
.page-hero--photo .hero-media::after { content: ""; position: absolute; inset: 0; background: rgba(21, 35, 63, .86); }
.page-hero--photo .ondes { display: none; }
.page-hero--photo h1 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); max-width: 36ch; color: var(--color-on-dark); }
.page-hero--photo .lead { max-width: 72ch; font-size: 1.05rem; color: var(--color-on-dark); }
.page-hero--photo .eyebrow { margin-bottom: 0; color: var(--color-accent); }
.page-hero--photo .article-meta { color: var(--color-accent); }
.page-hero--photo .breadcrumb, .page-hero--photo .breadcrumb a { color: var(--color-on-dark-soft); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; font-size: 0.85rem; color: var(--color-text-soft); }
.breadcrumb a { color: var(--color-text-soft); }
.breadcrumb li + li::before { content: "›"; margin-right: 6px; }

/* Les deux formules */
.formule-grid { display: grid; gap: 22px; }
.formule {
  display: grid; gap: 14px; align-content: start; padding: 30px 28px;
  background: var(--color-background); border: 1px solid var(--color-line); border-top: 4px solid var(--color-secondary); border-radius: var(--radius);
}
.formule .tag { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-secondary); }
.formule h3 { font-size: 1.45rem; font-weight: 300; }
.formule h3 strong { font-weight: 600; }
.checks { display: grid; gap: 8px; }
.checks li { position: relative; padding-left: 26px; }
.checks li::before {
  content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px;
  border-left: 2px solid var(--color-secondary); border-bottom: 2px solid var(--color-secondary); transform: rotate(-45deg);
}
.section--dark .checks li::before { border-color: var(--color-accent); }
.formule-foot { margin-top: 28px; color: var(--color-text-soft); max-width: 70ch; }

/* Présentation courte */
.pitch-grid { display: grid; gap: 36px; align-items: center; }
.pitch-photo { width: 190px; height: 190px; border-radius: 50%; object-fit: cover; border: 6px solid var(--color-background); box-shadow: 0 0 0 2px var(--color-secondary); }
.pitch-text { display: grid; gap: 18px; min-width: 0; max-width: 68ch; }

/* Texte courant des pages intérieures */
.prose { display: grid; gap: 18px; max-width: 68ch; min-width: 0; }
.prose h2 { margin-top: 18px; }
.prose h3 { margin-top: 8px; }
.prose ul:not(.checks) { display: grid; gap: 8px; padding-left: 22px; list-style: disc; }
.split { display: grid; gap: 40px; align-items: start; }
.split > * { min-width: 0; }
.panel { display: grid; gap: 14px; padding: 28px; background: var(--color-surface); border-radius: var(--radius); }
.section--surface .panel { background: var(--color-background); }

/* Étapes numérotées (un vrai déroulé) */
.steps { display: grid; gap: 22px; counter-reset: etape; }
.steps li { display: grid; gap: 8px; align-content: start; padding-top: 18px; border-top: 2px solid var(--color-primary); counter-increment: etape; }
.steps li::before { content: counter(etape); font-size: 2rem; font-weight: 300; line-height: 1; color: var(--color-secondary); }
.steps p { color: var(--color-text-soft); font-size: 0.97rem; }
/* Variante sans numeros : pour une liste qui n est pas un deroule (les valeurs, par exemple) */
.steps--plain li::before { content: none; }

/* Cartes des services */
.services-grid { display: grid; gap: 22px; }
.service { display: grid; grid-template-rows: auto 1fr; background: var(--color-background); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; border: 1px solid var(--color-line); }
.service img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; object-position: center top; }
.service-body { display: grid; gap: 8px; align-content: start; padding: 20px 22px 24px; }
.service-body p { font-size: 0.95rem; color: var(--color-text-soft); }
.service-body .link-arrow { margin-top: 6px; color: var(--color-secondary); font-size: 0.95rem; }
.service:hover { border-color: var(--color-secondary); }
.service:hover .link-arrow { text-decoration: underline; }

/* Chiffres et références */
.trust-grid { display: grid; gap: 40px; }
.figures { display: grid; gap: 26px; grid-template-columns: repeat(3, 1fr); }
.figure-num { display: block; font-size: clamp(2.2rem, 7vw, 3.6rem); font-weight: 300; line-height: 1; color: var(--color-on-dark); font-variant-numeric: tabular-nums; }
.figure-num em { font-style: normal; color: var(--color-accent); }
.figure-label { display: block; margin-top: 10px; font-size: 0.9rem; line-height: 1.4; }
.refs { display: grid; gap: 14px; }
.refs ul { display: flex; flex-wrap: wrap; gap: 8px 10px; }
.refs li { padding: 7px 14px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; color: var(--color-on-dark); font-size: 0.9rem; font-weight: 600; }
.refs--light li { border-color: var(--color-line); color: var(--color-primary); background: var(--color-background); }

/* Publications et articles */
.news-grid { display: grid; gap: 28px 22px; }
.news { display: grid; gap: 10px; align-content: start; padding: 22px 0 0; border-top: 2px solid var(--color-primary); }
.news-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-soft); }
.news-meta svg { width: 16px; height: 16px; color: var(--color-secondary); flex: none; }
.news h3 a { color: var(--color-primary); text-decoration: none; }
.news h3 a:hover { color: var(--color-secondary); }
.news p { font-size: 0.95rem; color: var(--color-text-soft); }
.news--visuel { padding-top: 0; border-top: 0; }
.news-img { display: block; margin-bottom: 6px; border-radius: var(--radius); overflow: hidden; background: var(--color-surface); }
.news-img img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; transition: transform .3s; }
.news-img:hover img { transform: scale(1.03); }

/* Vidéos courtes : vignettes verticales avec bouton de lecture */
.videos-grid { display: grid; gap: 26px 18px; grid-template-columns: repeat(2, 1fr); }
.video { display: grid; gap: 6px; align-content: start; min-width: 0; text-decoration: none; color: inherit; }
.video-img { position: relative; display: block; border-radius: var(--radius); overflow: hidden; background: var(--color-surface); }
.video-img img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; transition: transform .3s; }
.video:hover .video-img img { transform: scale(1.03); }
.video-img::before { content: ""; position: absolute; z-index: 1; left: 50%; top: 50%; width: 58px; height: 58px; margin: -29px 0 0 -29px; border-radius: 50%; background: rgba(21, 35, 63, .82); }
.video-img::after { content: ""; position: absolute; z-index: 1; left: 50%; top: 50%; margin: -11px 0 0 -6px; border-left: 18px solid var(--color-on-dark); border-top: 11px solid transparent; border-bottom: 11px solid transparent; }
.video:hover .video-img::before { background: var(--color-secondary); }
.video-chaine { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-soft); }
.video-titre { font-weight: 600; line-height: 1.35; color: var(--color-primary); }
.video:hover .video-titre { color: var(--color-secondary); }
.news-foot { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 34px; }

/* Galerie de réalisations */
.gallery { display: grid; gap: 18px; grid-template-columns: repeat(2, 1fr); }
.gallery figure { display: grid; gap: 8px; align-content: start; min-width: 0; }
.gallery button { padding: 0; border: 1px solid var(--color-line); border-radius: var(--radius); background: var(--color-surface); overflow: hidden; cursor: zoom-in; }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center top; transition: transform .3s; }
.gallery button:hover img { transform: scale(1.03); }
.gallery figcaption { display: grid; gap: 4px; font-size: 0.85rem; line-height: 1.4; color: var(--color-text-soft); }
.doc-link { font-weight: 600; text-decoration: none; }
.doc-link::before { content: "↗ "; }
.doc-link:hover { text-decoration: underline; }
.lightbox { max-width: min(94vw, 1200px); max-height: 94vh; padding: 0; border: 0; border-radius: var(--radius); background: var(--color-primary); color: var(--color-on-dark); }
.lightbox::backdrop { background: rgba(14, 24, 45, .86); }
.lightbox img { max-width: 100%; max-height: 82vh; margin-inline: auto; }
.lightbox-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 10px 16px; font-size: 0.9rem; }
.lightbox-bar button { background: none; border: 1px solid rgba(255,255,255,.4); border-radius: 999px; color: var(--color-on-dark); padding: 6px 14px; font: inherit; cursor: pointer; }

/* Questions fréquentes */
.faq { display: grid; gap: 0; max-width: 78ch; }
.faq details { border-top: 1px solid var(--color-line); }
.faq details:last-child { border-bottom: 1px solid var(--color-line); }
.faq summary { padding: 18px 34px 18px 0; position: relative; cursor: pointer; font-weight: 600; color: var(--color-primary); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font-size: 1.5rem; font-weight: 300; color: var(--color-secondary); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding-bottom: 20px; color: var(--color-text-soft); }

/* Appel final */
.cta-band { display: grid; gap: 26px; align-items: center; }
.cta-band .phone { font-size: 1.5rem; font-weight: 600; color: var(--color-on-dark); white-space: nowrap; text-decoration: none; }
.cta-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; }

/* Formulaire de contact */
.contact-grid { display: grid; gap: 44px; align-items: start; }
.form { display: grid; gap: 18px; min-width: 0; }
.fields { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-weight: 600; font-size: 0.92rem; color: var(--color-primary); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid #9AA8C2; border-radius: var(--radius);
  background: var(--color-background); color: var(--color-text); font: inherit;
}
.field textarea { min-height: 160px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
altcha-widget { display: block; max-width: 320px; }
.hint, .legal { font-size: 0.88rem; color: var(--color-text-soft); }
.form-error { padding: 12px 16px; border-left: 4px solid var(--color-error); background: #FCEEED; color: var(--color-error); border-radius: var(--radius); }
.form-ok { padding: 12px 16px; border-left: 4px solid var(--color-success); background: #EAF6EE; color: var(--color-success); border-radius: var(--radius); }
.direct { display: grid; gap: 22px; }
.direct dl { display: grid; gap: 2px; }
.direct dt { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-secondary); }
.direct dd { font-size: 1.05rem; color: var(--color-primary); }
.direct dd a { color: var(--color-primary); font-weight: 600; text-decoration: none; }
.direct dd a:hover { color: var(--color-secondary); }
.direct .actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* Défilement rapide : deux boutons calés à droite, à mi-hauteur (tablette et ordinateur) */
.defile { display: none; position: fixed; z-index: 15; right: 14px; top: 50%; transform: translateY(-50%); gap: 6px; }
.defile button {
  display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; padding: 0;
  border: 1px solid var(--color-line); border-radius: 50%; background: var(--color-background); color: var(--color-primary);
  box-shadow: 0 2px 10px rgba(21, 35, 63, .16); cursor: pointer; transition: background .2s, color .2s, opacity .2s;
}
.defile button svg { width: 18px; height: 18px; }
.defile button:hover { background: var(--color-secondary); border-color: var(--color-secondary); color: var(--color-on-dark); }
.defile button:disabled { opacity: .3; cursor: default; background: var(--color-background); border-color: var(--color-line); color: var(--color-primary); }

/* Plan du site */
.sitemap { display: grid; gap: 32px; }
.sitemap h2 { font-size: 1.3rem; font-weight: 600; margin-bottom: 12px; }
.sitemap ul { display: grid; gap: 8px; }
.sitemap ul ul { margin: 8px 0 0 20px; }

/* Article */
.article { display: grid; gap: 18px; max-width: 70ch; }
.article-meta { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-soft); }

/* Pied de page */
.site-footer { background: var(--color-footer); color: var(--color-on-dark-soft); padding-block: 56px 28px; font-size: 0.95rem; }
.footer-grid { display: grid; gap: 36px; }
.site-footer img.logo { width: 220px; }
.site-footer address { font-style: normal; margin-top: 18px; }
.site-footer h3 { color: var(--color-on-dark); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 14px; }
.site-footer a { color: var(--color-on-dark-soft); text-decoration: none; }
.site-footer a:hover { color: var(--color-on-dark); text-decoration: underline; }
.site-footer ul { display: grid; gap: 7px; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; margin-top: 44px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.14); font-size: 0.85rem; }

@media (min-width: 768px) {
  :root { --gutter: 32px; }
  .topbar-msg { display: inline; }
  .defile { display: grid; }
  .page-hero--photo .hero-media::after { background: linear-gradient(90deg, rgba(21, 35, 63, .94) 0%, rgba(21, 35, 63, .84) 50%, rgba(21, 35, 63, .35) 100%); }
  .formule-grid { grid-template-columns: 1fr 1fr; }
  .pitch-grid { grid-template-columns: auto 1fr; gap: 56px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .service--wide { grid-column: span 2; grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .service--wide img { height: 100%; aspect-ratio: auto; }
  .service--wide .service-body { align-content: center; padding: 28px; }
  .news-grid { grid-template-columns: repeat(3, 1fr); }
  .videos-grid { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .fields { grid-template-columns: 1fr 1fr; }
  .field.full { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .cta-band { grid-template-columns: 1fr auto; }
  .sitemap { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1200px) {
  :root { --spacing-section: 104px; }
  .nav-toggle { display: none; }
  .site-nav { display: block; position: static; border: 0; padding: 0; background: none; }
  .site-nav ul { display: flex; align-items: center; gap: 28px; }
  .site-nav a { padding: 6px 0; font-size: 0.95rem; }
  .site-nav .nav-cta { margin: 0 0 0 6px; }
  .hero { padding-block: 72px 88px; }
  .hero-grid { grid-template-columns: 1.08fr 1fr; gap: 64px; }
  .page-hero { padding-block: 64px 72px; }
  .page-hero--photo { padding-block: 40px 46px; }
  .services-grid { grid-template-columns: repeat(4, 1fr); }
  .trust-grid { grid-template-columns: 1.2fr 1fr; gap: 72px; align-items: start; }
  .split { grid-template-columns: 1.25fr 1fr; gap: 72px; }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps--plain { grid-template-columns: repeat(3, 1fr); }
  .gallery { grid-template-columns: repeat(4, 1fr); }
  .contact-grid { grid-template-columns: 1.3fr 1fr; gap: 72px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* ===== Menu collant, diaporama de l'accueil et animations (ajouts d'octobre 2026) ===== */

/* Le menu reste en haut pendant le défilement ; le bandeau d'appel, lui, s'en va */
#site-header { position: sticky; top: calc(-1 * var(--hauteur-bandeau, 0px)); z-index: 20; }
#site-header .site-header { position: static; transition: box-shadow .3s; }
#site-header.a-defile .site-header { box-shadow: 0 6px 22px rgba(21, 35, 63, .12); }

/* Diaporama de l'ouverture (page d'accueil) */
.diapos { position: relative; aspect-ratio: 4 / 3; border-radius: var(--radius); overflow: hidden; background: var(--color-primary); cursor: zoom-in; }
.diapo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center top; opacity: 0; transform: scale(1.06); transition: opacity .9s ease, transform 5s ease-out; }
.diapo.is-on { opacity: 1; transform: scale(1); }
.diapo-service { position: absolute; left: 14px; bottom: 14px; padding: 7px 14px; border-radius: 999px; background: rgba(21, 35, 63, .88); color: var(--color-on-dark); font-size: .8rem; font-weight: 600; letter-spacing: .06em; }
.diaporama figcaption { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; }
.diapo-outils { display: flex; align-items: center; gap: 14px; }
.points { display: flex; gap: 6px; }
.point { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: var(--color-line); cursor: pointer; transition: background .3s, transform .3s; }
.point.is-on { background: var(--color-secondary); transform: scale(1.35); }
.tout-voir { padding: 6px 14px; border: 1px solid var(--color-primary); border-radius: 999px; background: none; color: var(--color-primary); font: inherit; font-size: .82rem; font-weight: 600; cursor: pointer; transition: background .2s, color .2s; }
.tout-voir:hover { background: var(--color-primary); color: var(--color-on-dark); }

/* Grille « Tout voir » du diaporama */
.grille { width: min(94vw, 1100px); max-height: 92vh; padding: 0; border: 0; border-radius: var(--radius); background: var(--color-background); color: var(--color-text); }
.grille::backdrop { background: rgba(14, 24, 45, .86); }
.grille-tete { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 20px; background: var(--color-background); border-bottom: 1px solid var(--color-line); }
.grille-tete strong { color: var(--color-primary); }
.grille-tete button { padding: 6px 14px; border: 1px solid var(--color-primary); border-radius: 999px; background: none; color: var(--color-primary); font: inherit; font-weight: 600; cursor: pointer; }
.grille-corps { display: grid; gap: 14px; grid-template-columns: repeat(2, 1fr); padding: 20px; }
.grille-corps figure { display: grid; gap: 6px; }
.grille-corps img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center top; border-radius: var(--radius); cursor: zoom-in; transition: transform .3s; }
.grille-corps img:hover { transform: scale(1.03); }
.grille-corps figcaption { font-size: .82rem; color: var(--color-text-soft); }
.grille-corps b { display: block; color: var(--color-primary); }
.grille.une-image .grille-corps { grid-template-columns: 1fr; }
.grille.une-image .grille-corps figure { display: none; }
.grille.une-image .grille-corps figure.is-grande { display: grid; }
.grille.une-image .grille-corps img { aspect-ratio: auto; max-height: 72vh; object-fit: contain; cursor: zoom-out; }
@media (min-width: 768px) { .grille-corps { grid-template-columns: repeat(4, 1fr); } }

/* Animations : seulement si le visiteur n'a pas demandé à son ordinateur de les réduire.
   La classe « anime » est posée par js/main.js ; sans script, tout reste visible. */
@media (prefers-reduced-motion: no-preference) {
  .anime .hero-text > * { opacity: 0; transform: translateY(22px); animation: monter .7s cubic-bezier(.2, .7, .2, 1) forwards; }
  .anime .hero-text > :nth-child(2) { animation-delay: .12s; }
  .anime .hero-text > :nth-child(3) { animation-delay: .24s; }
  .anime .hero-text > :nth-child(4) { animation-delay: .36s; }
  .anime .hero-text > :nth-child(5) { animation-delay: .48s; }
  .anime .hero .hero-media { opacity: 0; animation: apparaitre .9s ease .2s forwards; }
  @keyframes monter { to { opacity: 1; transform: none; } }
  @keyframes apparaitre { to { opacity: 1; } }

  .hero .hero-media .ondes { transform-origin: 0% 55%; animation: emettre 3.2s ease-in-out infinite; }
  @keyframes emettre { 0%, 100% { transform: scale(1); opacity: .9; } 50% { transform: scale(1.08); opacity: .55; } }

  .anime .revele { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); transition-delay: var(--retard, 0s); }
  .anime .revele.est-visible { opacity: 1; transform: none; }

  .service { transition: transform .3s, box-shadow .3s, border-color .3s; }
  .service img { transition: transform .6s ease; }
  .service:hover { transform: translateY(-6px); box-shadow: 0 14px 34px rgba(21, 35, 63, .14); }
  .service:hover img { transform: scale(1.05); }
  .btn { transition: background .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s; }
  .btn:hover { transform: translateY(-2px); box-shadow: 0 8px 18px rgba(21, 35, 63, .18); }
  .refs li { transition: background .3s, color .3s, transform .3s; }
  .section--dark .refs li:hover { background: var(--color-on-dark); color: var(--color-primary); transform: translateY(-2px); }
  .pitch-photo { transition: transform .5s ease; }
  .pitch-photo:hover { transform: scale(1.04) rotate(-2deg); }
}

/* Très petits téléphones : les trois chiffres passent l'un sous l'autre */
@media (max-width: 359px) { .figures { grid-template-columns: 1fr; } }

/* Ligne des deux formules, dans l'ouverture de l'accueil */
.hero-note { max-width: 58ch; padding-left: 14px; border-left: 3px solid var(--color-secondary); font-size: .98rem; color: var(--color-text-soft); }
.hero-note strong { color: var(--color-primary); font-weight: 600; }

/* Les trois ondes passent devant le diaporama, avec ou sans animations */
.hero .hero-media .ondes { z-index: 2; }

/* Le diaporama défile pour tout le monde ; si l'ordinateur demande de réduire les animations,
   les images s'enchaînent par un simple fondu, sans effet de zoom */
@media (prefers-reduced-motion: reduce) {
  .diapo { transform: none; transition: opacity .6s ease !important; }
}