/* ==========================================================================
   SFDS · Feuille de style commune (V6)
   --------------------------------------------------------------------------
   Système de design unique pour toutes les pages : couleurs et typographies
   existantes de la marque (encre #15202e, bleu #2c4a6e, Source Serif 4 /
   Source Sans 3), formalisées en jetons réutilisables.

   Sommaire
     1. Jetons (couleurs, typo, espacements, rayons)
     2. Base & accessibilité (focus, lien d'évitement, mouvement réduit)
     3. Composants partagés (boutons, liens, champs, cartes)
     4. En-tête, navigation, sélecteur de langue, menu mobile
     5. Sections de la page d'accueil
     6. Pied de page
     7. Responsive (≤1100, ≤820, ≤480, ≤360)
     8. RTL (arabe)
   ========================================================================== */

/* 1. Jetons ---------------------------------------------------------------- */
:root{
  /* Couleurs de marque (inchangées) */
  --ink:#15202e;          /* texte principal, fonds sombres */
  --ink-2:#0d1722;        /* survol des boutons sombres */
  --accent:#2c4a6e;       /* bleu SFDS : liens, repères, états actifs */
  --accent-light:#9fbfe0; /* bleu clair, uniquement sur fond sombre */

  /* Neutres */
  --paper:#ffffff;
  --mist:#f5f7f9;
  --line:#e4e8ec;
  --line-strong:#c9d1da;
  --field-border:#848f9d; /* contour des champs : 3,3:1 sur blanc (WCAG 1.4.11) */
  --grey:#576070;         /* texte secondaire : 6,4:1 sur blanc */
  --grey-on-dark:#b9c2ce; /* texte secondaire sur fond encre : 9:1 */

  /* États */
  --error:#b3261e;
  --error-bg:#fdf3f2;
  --success:#1a7f37;
  --success-bg:#f1f8f3;
  --focus:#2c4a6e;
  --focus-on-dark:#ffffff;

  /* Typographie */
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  --sans:"Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-body:17px;
  --fs-small:15px;
  --fs-xs:13px;
  --fs-h1:clamp(30px, 4.1vw, 48px);
  --fs-h2:clamp(25px, 3vw, 36px);
  --fs-h3:clamp(19px, 1.8vw, 22px);

  /* Mise en page */
  --maxw:1140px;
  --gut:clamp(20px, 5vw, 56px);
  --section-y:clamp(64px, 8vw, 112px);
  --radius:2px;
  --header-h:76px;
  --tap:44px;             /* zone tactile minimale (WCAG 2.5.5 / 2.5.8) */
  --shadow-panel:0 16px 40px rgba(21,32,46,.14);
  --ease:cubic-bezier(.22,1,.36,1);
}

/* 2. Base & accessibilité --------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
*{margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
section[id],[id].anchor{scroll-margin-top:calc(var(--header-h) + 16px)}
body{
  background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:var(--fs-body);line-height:1.62;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-wrap:break-word;
}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
img{height:auto}
button,input,select,textarea{font:inherit;color:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.16;letter-spacing:-.008em;color:var(--ink)}
h3,h4{font-weight:600}
p{color:var(--grey)}
strong,b{font-weight:600}
.eyebrow{font-size:var(--fs-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);line-height:1.4}

/* Focus clavier : toujours visible, contrasté sur fond clair comme sombre */
:focus{outline:none}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:1px}
.section.dark :focus-visible,footer :focus-visible,.band :focus-visible,footer a:focus-visible{outline-color:var(--focus-on-dark)}
input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:1px}
/* Éléments qui reçoivent le focus par programme (titre, zone principale, message) : pas de cadre */
[tabindex="-1"]:focus{outline:none}

/* Lien d'évitement (premier élément de chaque page) */
.skip-link{
  position:absolute;left:12px;top:-100px;z-index:100;
  background:var(--ink);color:#fff;font-weight:600;font-size:15px;
  padding:12px 18px;border-radius:var(--radius);transition:top .15s;
}
.skip-link:focus{top:12px}

/* Masqué visuellement, lu par les lecteurs d'écran */
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* Respect de la préférence « réduire les animations » */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* Section ancre mentions légales (affichée via #mentions) */
#mentions:target{display:block!important}

/* 3. Composants partagés ---------------------------------------------------- */

/* Boutons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:12px 26px;
  font-family:var(--sans);font-size:15.5px;font-weight:600;line-height:1.25;letter-spacing:.01em;text-align:center;
  border:1px solid var(--ink);border-radius:var(--radius);
  background:var(--ink);color:#fff;cursor:pointer;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  -webkit-appearance:none;appearance:none;
}
.btn:hover{background:var(--ink-2);border-color:var(--ink-2)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--field-border)}
.btn.ghost:hover{border-color:var(--ink);background:var(--mist)}
.btn.light{background:#fff;color:var(--ink);border-color:#fff}
.btn.light:hover{background:var(--mist)}
.btn[disabled],.btn[aria-disabled="true"]{opacity:.6;cursor:not-allowed}
.btn .ext,.link-arrow .ext{font-size:.85em;opacity:.8}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.link-arrow{display:inline-flex;align-items:center;gap:6px;min-height:var(--tap);font-size:15.5px;font-weight:600;color:var(--accent);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;transition:text-decoration-color .18s}
.link-arrow:hover{text-decoration-color:currentColor}
.text-link{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.text-link:hover{color:var(--ink)}

.ct-reassure{margin-top:14px;font-size:14px;color:var(--grey)}

/* Champs de formulaire (contact, radar, études) */
.form-stack{display:flex;flex-direction:column;gap:20px}
.field{display:flex;flex-direction:column;gap:6px}
.field label,.field .label{font-size:15px;font-weight:600;color:var(--ink)}
.field .req{color:var(--error);font-weight:600;margin-left:2px}
.field .opt{font-weight:400;color:var(--grey);font-size:13.5px;margin-left:4px}
.field .hint{font-size:13.5px;color:var(--grey);line-height:1.5}
.input,
.field input[type="email"],.field input[type="text"],.field input[type="tel"],.field input[type="password"],
.field textarea,.field select{
  width:100%;min-height:48px;padding:12px 14px;
  font-size:16px;line-height:1.45;color:var(--ink);background:var(--paper);
  border:1px solid var(--field-border);border-radius:var(--radius);
  transition:border-color .15s,box-shadow .15s;
}
.field textarea{min-height:140px;resize:vertical}
.field input:hover,.field textarea:hover{border-color:var(--ink)}
.field input:focus-visible,.field textarea:focus-visible{border-color:var(--accent);outline:3px solid rgba(44,74,110,.28);outline-offset:0}
.field input::placeholder,.field textarea::placeholder{color:#6b7480}
.field [aria-invalid="true"]{border-color:var(--error);background:var(--error-bg)}
.field-error{display:none;font-size:14px;font-weight:600;color:var(--error);line-height:1.45}
.field-error.is-visible{display:block}
.field-error::before{content:"⚠ ";font-weight:400}

.check{display:flex;align-items:flex-start;gap:12px;font-size:14.5px;line-height:1.55;color:var(--grey);cursor:pointer}
.check input[type="checkbox"]{flex:0 0 auto;width:22px;height:22px;margin-top:1px;accent-color:var(--accent);cursor:pointer}
.field label.check{font-weight:400;font-size:14.5px;color:var(--grey)}
.check a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

.form-note{font-size:13.5px;color:var(--grey)}
.form-alert{display:none;padding:14px 16px;border-left:3px solid var(--error);background:var(--error-bg);color:var(--ink);font-size:15px;line-height:1.5}
.form-alert.is-visible{display:block}
.form-success{padding:20px 22px;border-left:3px solid var(--success);background:var(--success-bg);color:var(--ink);font-size:15.5px;line-height:1.6}
.form-success h2,.form-success h3{font-size:20px;margin-bottom:6px}
.form-success p{color:var(--ink)}
.is-loading{position:relative}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Cartes génériques */
.card{background:var(--paper);border:1px solid var(--line);padding:clamp(24px,3vw,36px)}

/* Repère de page (fil d'Ariane / retour) */
.page-back{display:inline-flex;align-items:center;gap:6px;min-height:var(--tap);font-size:14.5px;font-weight:600;color:var(--accent)}
.page-back:hover{text-decoration:underline;text-underline-offset:3px}

/* 4. En-tête & navigation --------------------------------------------------- */
header{background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
@supports (backdrop-filter:blur(8px)){header{background:rgba(255,255,255,.9);backdrop-filter:saturate(1.4) blur(10px)}}
.head{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--header-h)}
.logo{display:flex;align-items:center;gap:12px;min-height:var(--tap);flex:0 0 auto}
.logo img{height:42px;width:auto}
.logo .brand{display:flex;flex-direction:column;line-height:1.1}
.logo .name{font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:.14em;color:var(--ink)}
.logo .tagline,.logo .tagline2{font-family:var(--sans);font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--grey);margin-top:4px}

nav.menu{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
nav.menu a{
  position:relative;display:inline-flex;align-items:center;min-height:var(--tap);padding:0 10px;
  font-size:14.5px;font-weight:500;color:var(--ink);white-space:nowrap;
}
nav.menu a:not(.contact-link)::after{
  content:"";position:absolute;left:10px;right:10px;bottom:9px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
nav.menu a:not(.contact-link):hover::after,nav.menu a[aria-current]::after{transform:scaleX(1)}
nav.menu a[aria-current]{color:var(--accent);font-weight:600}
/* Action principale : bouton « Contact » */
nav.menu a.contact-link{
  margin-left:10px;padding:0 20px;background:var(--ink);color:#fff;font-weight:600;border-radius:var(--radius);
  transition:background-color .18s;
}
nav.menu a.contact-link:hover{background:var(--accent)}
nav.menu a.contact-link[aria-current]{background:var(--accent)}

/* Sélecteur de langue compact (bureau) */
.lang-menu{position:relative;margin-left:8px}
.lang-menu summary{
  list-style:none;display:inline-flex;align-items:center;gap:6px;min-height:var(--tap);padding:0 10px;
  font-size:13.5px;font-weight:600;letter-spacing:.04em;color:var(--grey);cursor:pointer;border-radius:var(--radius);
}
.lang-menu summary::-webkit-details-marker{display:none}
.lang-menu summary::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .15s}
.lang-menu[open] summary::after{transform:translateY(1px) rotate(-135deg)}
.lang-menu summary:hover{color:var(--ink)}
.lang-menu .lang-list{
  position:absolute;right:0;top:calc(100% + 6px);min-width:150px;z-index:45;
  background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow-panel);padding:6px;
  display:flex;flex-direction:column;
}
.lang-menu .lang-list a{display:flex;align-items:center;justify-content:space-between;min-height:var(--tap);padding:0 12px;font-size:14.5px;color:var(--ink);border-radius:var(--radius)}
.lang-menu .lang-list a:hover{background:var(--mist)}
.lang-menu .lang-list a[aria-current]{color:var(--accent);font-weight:600}
.lang-menu .lang-list a[aria-current]::after{content:"✓";font-size:13px}

/* Ancien sélecteur (liste de boutons) : conservé pour le menu mobile */
.lang-switch{display:inline-flex;flex-wrap:wrap;gap:8px}
.lang-switch a{display:inline-flex;align-items:center;justify-content:center;min-width:var(--tap);min-height:var(--tap);padding:0 10px;font-size:13.5px;font-weight:600;letter-spacing:.04em;color:var(--grey);border:1px solid var(--line);border-radius:var(--radius)}
.lang-switch a:hover{color:var(--ink);border-color:var(--ink)}
.lang-switch a.active,.lang-switch a[aria-current]{background:var(--accent);border-color:var(--accent);color:#fff}
nav.menu .lang-switch{display:none}

/* Bouton menu (burger) */
.burger{
  display:none;position:relative;z-index:41;align-items:center;justify-content:center;gap:10px;
  min-width:var(--tap);min-height:var(--tap);padding:0 12px;margin-right:-12px;
  border:0;background:none;cursor:pointer;color:var(--ink);font-size:14.5px;font-weight:600;
  -webkit-tap-highlight-color:transparent;
}
.burger .burger-label{order:-1}
.burger .bx{display:block;width:22px;height:2px;background:currentColor;position:relative;transition:background .15s}
.burger .bx::before,.burger .bx::after{content:"";position:absolute;left:0;width:22px;height:2px;background:currentColor;transition:transform .2s var(--ease)}
.burger .bx::before{top:-7px}
.burger .bx::after{top:7px}
.burger[aria-expanded="true"] .bx{background:transparent}
.burger[aria-expanded="true"] .bx::before{transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] .bx::after{transform:translateY(-7px) rotate(-45deg)}

.mobile-panel{display:none}
.nav-backdrop{display:none}

/* 5. Sections --------------------------------------------------------------- */
.section{padding:var(--section-y) 0}
.section.alt{background:var(--mist)}
.section.dark{background:var(--ink)}
.section.dark .eyebrow{color:var(--accent-light)}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark p{color:var(--grey-on-dark)}
.section.bordered{border-top:1px solid var(--line)}

.lead .eyebrow{margin-bottom:16px}
.lead h2{font-size:var(--fs-h2);max-width:24ch}
.lead p{margin-top:18px;max-width:62ch}
.section-actions{margin-top:40px;display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center}

/* Hero */
.hero{padding:clamp(48px,7vw,96px) 0 clamp(48px,6vw,80px);border-bottom:1px solid var(--line);overflow:hidden}
.hero .inner{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(32px,6vw,80px);align-items:center}
.hero .eyebrow{margin-bottom:22px}
.hero h1{font-size:var(--fs-h1);max-width:18ch;font-weight:500}
.hero .sub{margin-top:24px;max-width:52ch;font-size:clamp(16.5px,1.4vw,18.5px);line-height:1.65}
.hero .triad{margin-top:22px;padding-left:16px;border-left:2px solid var(--accent);font-family:var(--serif);font-style:italic;color:var(--ink);font-size:18px;line-height:1.5}
.hero .actions{margin-top:34px;display:flex;gap:12px 24px;flex-wrap:wrap;align-items:center}
.hero .art{color:#274868}
.hero .art svg{width:100%;height:auto;display:block}
.hero .art.photo{display:block;max-width:440px;margin-left:auto;position:relative}
.hero .art.photo img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:50% 20%;display:block}

/* Partenariat (fond sombre) */
.partner-feature{display:flex;align-items:center;justify-content:space-between;gap:clamp(40px,6vw,80px);flex-wrap:wrap}
.partner-feature .lead{max-width:520px}
.partner-feature .lead p{color:var(--grey-on-dark);font-size:16px;line-height:1.7}
.partner-logo-box{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:28px 40px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.03)}
.partner-logo-box a{display:block;line-height:0;transition:opacity .18s}
.partner-logo-box a:hover{opacity:.8}
.partner-logo-box svg{height:110px;width:auto}
.partner-link{display:inline-flex;align-items:center;min-height:var(--tap);font-size:14px;color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.45);text-underline-offset:4px;white-space:nowrap;line-height:1}
.partner-link:hover{text-decoration-color:#fff}

/* Étapes / process */
.steps{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);counter-reset:step}
.steps .st{background:var(--paper);padding:28px 28px 30px}
.section.alt .steps .st{background:var(--paper)}
.steps .st .num{font-family:var(--serif);font-size:15px;color:var(--accent);font-weight:600;letter-spacing:.04em;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line);display:block}
.steps .st .tt{font-family:var(--serif);font-size:20px;font-weight:600;color:var(--ink);line-height:1.3}
.steps .st p{font-size:15.5px;margin-top:8px;line-height:1.6}

/* Cabinet */
.cab{display:grid;grid-template-columns:1fr 1.1fr;grid-template-areas:"head body" "team body";column-gap:clamp(36px,6vw,80px);row-gap:8px;align-items:start}
.cab-head{grid-area:head}
.cab .body{grid-area:body}
.cab .team-block{grid-area:team}
.cab h2{font-size:var(--fs-h2)}
.cab .body p{margin-bottom:18px}
.cab .body p:last-child{margin-bottom:0}
.cab .body h3{font-size:var(--fs-h3);margin:36px 0 12px}
.cab .body h3:first-of-type{margin-top:32px}
.cab .body .highlight{margin-top:20px;padding:18px 20px;border-left:3px solid var(--accent);background:var(--mist);color:var(--ink);font-weight:600}
.cab .body ul{list-style:none;margin:16px 0 0;padding:0}
.cab .body li{position:relative;padding-left:24px;margin-bottom:14px}
.cab .body li::before{content:"\25B8";position:absolute;left:0;top:0;color:var(--accent);font-weight:700}
.facts{margin-top:30px;display:flex;gap:40px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
.facts .f .n{font-family:var(--serif);font-size:30px;font-weight:600;color:var(--ink);line-height:1}
.facts .f .l{font-size:14.5px;color:var(--grey);margin-top:8px}

/* Équipe (carrousel) */
.team-block{margin-top:36px}
.team-block .team-title{font-family:var(--sans);font-size:var(--fs-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.founder{max-width:220px;display:grid;grid-template-columns:minmax(0,1fr)}
.founder img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;object-position:50% 20%;border:1px solid var(--line);display:block;background:var(--mist)}
.founder .avatar-fallback{width:100%;aspect-ratio:3/4;display:flex;align-items:center;justify-content:center;background:var(--ink);color:#fff;font-family:var(--serif);font-size:32px;font-weight:600;letter-spacing:.03em;border:1px solid var(--line)}
.founder figcaption{margin-top:14px;min-height:84px}
.founder .fn{font-family:var(--serif);font-size:19px;font-weight:600;color:var(--ink)}
.founder .fr{font-size:14px;color:var(--accent);font-weight:600;letter-spacing:.02em;margin-top:3px;line-height:1.4}
.founder .fe{font-size:14px;margin-top:6px}
.founder .fe a{color:var(--grey);border-bottom:1px solid var(--line-strong);transition:color .2s,border-color .2s;overflow-wrap:anywhere}
.founder .fe a:hover{color:var(--accent);border-color:var(--accent)}
.founder .team-slide{grid-area:1/1;visibility:hidden;opacity:0}
.founder .team-slide.is-active{visibility:visible;opacity:1;animation:teamFade .35s ease}
.founder .team-nav{grid-area:2/1}
@keyframes teamFade{from{opacity:0}to{opacity:1}}
.team-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px}
.team-nav .team-dots{order:5;flex:1 0 100%;justify-content:flex-start;margin-top:4px}
.team-arrow,.team-pause{
  width:var(--tap);height:var(--tap);flex:0 0 auto;display:flex;align-items:center;justify-content:center;
  background:var(--paper);border:1px solid var(--line-strong);border-radius:var(--radius);color:var(--ink);
  font-size:17px;line-height:1;cursor:pointer;transition:border-color .2s,color .2s;
}
.team-arrow:hover,.team-pause:hover{border-color:var(--accent);color:var(--accent)}
.team-pause svg{width:14px;height:14px}
.team-dots{display:flex;flex-wrap:wrap;gap:0;margin-left:-8px}
.team-dots button{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:0;background:none;cursor:pointer;padding:0}
.team-dots button::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--line-strong);transition:background .2s,transform .2s}
.team-dots button[aria-current="true"]::before{background:var(--accent);transform:scale(1.25)}
.team-dots span{width:7px;height:7px;border-radius:50%;background:var(--line);margin:0 3px}
.team-dots span.is-active{background:var(--accent)}
.team-status{font-size:13px;color:var(--grey);text-align:center;margin-top:4px}

/* Corporate development */
.apropos-grid{display:grid;grid-template-columns:1fr .82fr;gap:clamp(28px,5vw,64px);align-items:stretch}
.apropos-img{border:1px solid var(--line);line-height:0;overflow:hidden;background:var(--mist)}
.apropos-img img{width:100%;height:100%;min-height:340px;object-fit:cover;display:block}
.caps{margin-top:44px;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.caps li{background:var(--paper);padding:20px 24px 20px 48px;font-size:16px;color:var(--ink);position:relative;line-height:1.55}
.caps li::before{content:"▸";position:absolute;left:22px;top:20px;color:var(--accent);font-weight:600}

/* Expertises */
.exp{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:28px}
.exp .cell{background:var(--paper);padding:clamp(26px,3.4vw,40px)}
.section.alt .exp .cell{background:var(--paper)}
.exp h3{font-size:var(--fs-h3)}
.exp .cell>p{margin-top:12px;font-size:16px}
.exp .svc{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:14.5px;color:var(--ink);line-height:1.7}
.exp .svc b{color:var(--accent);font-weight:600}
.sub-h{font-family:var(--sans);font-size:var(--fs-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--grey);margin-top:48px}

/* Bandeau photo */
.band{position:relative;height:clamp(260px,40vw,440px);overflow:hidden;background:var(--ink)}
.band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 42%}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(12,20,30,.72),rgba(12,20,30,.08) 62%)}
.band .cap{position:relative;z-index:2;height:100%;display:flex;align-items:flex-end;max-width:var(--maxw);margin:0 auto;padding:clamp(24px,5vw,52px) var(--gut)}
.band .cap span,.band .cap p{font-family:var(--serif);font-style:italic;color:#fff;font-size:clamp(20px,3vw,30px);text-shadow:0 2px 18px rgba(0,0,0,.45);max-width:24ch;line-height:1.32}

/* Secteurs */
.sect{margin-top:32px;display:flex;flex-wrap:wrap;gap:10px;list-style:none}
.sect span,.sect li{border:1px solid var(--line-strong);background:var(--paper);padding:10px 18px;font-size:15.5px;color:var(--ink);border-radius:var(--radius)}

/* Insights (sujets) */
.arts{margin-top:36px;border-top:1px solid var(--line);list-style:none}
.arts .art{display:grid;grid-template-columns:180px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);align-items:baseline}
.arts .art .c{font-size:var(--fs-xs);font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.arts .art .t{font-family:var(--serif);font-size:20px;color:var(--ink);line-height:1.35}
a.art:hover .t{color:var(--accent)}

/* Réalisations / témoignages (classes conservées) */
.deals{margin-top:42px;border-top:1px solid var(--line)}
.deal{display:grid;grid-template-columns:1.4fr 1fr .7fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line);align-items:baseline}
.deal .op{font-family:var(--serif);font-size:18px;color:var(--ink)}
.deal .se,.deal .mt{font-size:14.5px;color:var(--grey)}
.deal .mt{text-align:right}
.case{margin-top:42px;border:1px solid var(--line);padding:clamp(28px,3.5vw,42px)}
.case .tag{font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.case h3{font-size:24px;margin-top:10px}
.case .grid{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:22px 40px}
.quote{max-width:64ch;margin-top:8px}
.quote blockquote{font-family:var(--serif);font-size:clamp(20px,2.4vw,27px);line-height:1.4;color:var(--ink)}
.quote .who{margin-top:18px;font-size:15px;color:var(--grey)}

/* Contact (accueil) */
.ct{display:grid;grid-template-columns:1.3fr 1fr;gap:clamp(32px,6vw,72px);align-items:start}
.ctgrid{display:grid;grid-template-columns:.82fr 1.18fr;gap:clamp(32px,6vw,72px);align-items:stretch}
.ctimg{border:1px solid var(--line);overflow:hidden;min-height:340px;background:var(--mist)}
.ctimg img{width:100%;height:100%;object-fit:cover;display:block}
.ct h2,.ctbody h2{font-size:var(--fs-h2);max-width:18ch}
.ct p,.ctbody p{margin-top:18px;max-width:48ch}
.ctbody .eyebrow{margin-bottom:16px}
.ctbody .btn-row{margin-top:30px}
.ctbody .coord{margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}
.coord{font-size:16px;line-height:1.75;color:var(--ink);display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px 28px}
.coord .lab{font-size:var(--fs-xs);font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}
.coord a{color:var(--ink);text-decoration:underline;text-decoration-color:var(--line-strong);text-underline-offset:4px;display:inline-flex;align-items:center;min-height:32px;overflow-wrap:anywhere}
.coord a:hover{color:var(--accent);text-decoration-color:currentColor}
.coord address{font-style:normal}

/* Séparateur toits de Paris */
.rooftops{color:#dde3e9;background:var(--paper);line-height:0}
.rooftops svg{display:block;width:100%;height:auto}

/* Mentions légales (ancre) */
.mentions-wrap{padding:56px var(--gut);max-width:760px;font-size:15px;line-height:1.8;color:var(--grey)}
.mentions-wrap h2{font-size:24px;margin-bottom:18px}
.mentions-wrap p{margin-bottom:12px}
.mentions-wrap a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}

/* Pages intérieures : introduction, contact, pied de page simplifié */
.page-intro{max-width:720px;padding:clamp(48px,7vw,88px) 0 clamp(28px,4vw,40px)}
.page-intro h1{font-size:var(--fs-h1);margin:14px 0 16px}
.page-intro .lede{font-size:clamp(16.5px,1.4vw,18.5px);max-width:56ch}
.contact-page{padding-bottom:var(--section-y)}
.contact-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:start}
.contact-card{padding:clamp(24px,3.5vw,40px)}
.contact-aside{padding-top:8px}
.contact-aside h2{font-size:var(--fs-h3);margin-bottom:20px}
.contact-aside .btn{width:100%}
.contact-aside .coord{grid-template-columns:1fr;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.footer-slim{background:var(--paper);color:var(--grey);border-top:1px solid var(--line);padding:24px var(--gut);text-align:center;font-size:14px}
.footer-slim a{display:inline-flex;align-items:center;min-height:var(--tap);padding:0 4px;color:var(--ink);text-decoration:underline;text-underline-offset:3px}
@media (max-width:820px){.contact-layout{grid-template-columns:1fr}}

/* 6. Pied de page ----------------------------------------------------------- */
footer{background:var(--ink);color:var(--grey-on-dark);border-top:4px solid var(--accent)}
footer p{color:var(--grey-on-dark)}
.foot-brand{text-align:center;padding-top:clamp(44px,7vw,72px);padding-bottom:clamp(28px,4vw,40px);border-bottom:1px solid rgba(255,255,255,.12)}
.foot-brand .bb-name{font-family:var(--serif);font-weight:600;letter-spacing:.16em;color:#fff;font-size:clamp(34px,6vw,58px);line-height:1}
.foot-brand .bb-tag{margin-top:16px;font-size:clamp(12px,1.3vw,14.5px);letter-spacing:.05em}
.foot{display:grid;grid-template-columns:auto 1fr;gap:24px 48px;padding-top:36px;padding-bottom:40px;align-items:center}
.foot .fl{display:flex;align-items:center;gap:14px}
.foot .fl img{height:44px;width:auto;opacity:.95}
.foot .fl .name{font-family:var(--serif);font-size:16px;letter-spacing:.06em;color:#fff;line-height:1.4;max-width:30ch}
.foot .meta{font-size:14px;text-align:right;line-height:1.6;display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;column-gap:4px}
.foot .meta span{color:var(--grey-on-dark)}
.foot .meta a{display:inline-flex;align-items:center;min-height:var(--tap);padding:0 6px;color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.35);text-underline-offset:4px}
.foot .meta a:hover{text-decoration-color:#fff}

/* 7. Responsive ------------------------------------------------------------- */

/* ≤1100 px : la navigation complète passe dans le menu (évite le retour à la ligne) */
@media (max-width:1100px){
  nav.menu,.lang-menu{display:none}
  .burger{display:inline-flex}
  .mobile-panel{
    display:block;position:absolute;top:100%;left:0;right:0;background:var(--paper);z-index:39;
    max-height:calc(100vh - var(--header-h));max-height:calc(100dvh - var(--header-h));overflow-y:auto;overscroll-behavior:contain;
    padding:8px var(--gut) 32px;border-top:1px solid var(--line);
    box-shadow:var(--shadow-panel);
    visibility:hidden;opacity:0;transform:translateY(-8px);
    transition:opacity .18s var(--ease),transform .18s var(--ease),visibility 0s linear .18s;
  }
  .mobile-panel.is-open{visibility:visible;opacity:1;transform:none;transition:opacity .18s var(--ease),transform .18s var(--ease),visibility 0s}
  .mobile-panel nav{display:flex;flex-direction:column;max-width:var(--maxw);margin:0 auto}
  .mobile-panel nav a{display:flex;align-items:center;justify-content:space-between;min-height:56px;font-family:var(--serif);font-size:21px;padding:8px 0;border-bottom:1px solid var(--line);color:var(--ink)}
  .mobile-panel nav a::after{content:"→";font-family:var(--sans);font-size:16px;color:var(--grey)}
  .mobile-panel nav a[aria-current]{color:var(--accent)}
  .mobile-panel nav a[aria-current]::after{content:"•";color:var(--accent)}
  .mobile-panel nav a.contact-link{justify-content:center;margin-top:20px;border:0;background:var(--ink);color:#fff;font-family:var(--sans);font-size:16px;font-weight:600;border-radius:var(--radius)}
  .mobile-panel nav a.contact-link::after{content:none}
  .mobile-panel .lang-switch{margin:24px auto 0;max-width:var(--maxw);display:flex}
  .mobile-panel .lang-title{max-width:var(--maxw);margin:24px auto 0;font-size:var(--fs-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--grey)}
  .mobile-panel .lang-title + .lang-switch{margin-top:10px}
  .nav-backdrop{display:block;position:fixed;inset:0;background:rgba(21,32,46,.38);z-index:38;opacity:0;pointer-events:none;transition:opacity .18s}
  .nav-backdrop.is-open{opacity:1;pointer-events:auto}
  body.nav-open{overflow:hidden}
}

/* ≤960 px : colonnes de contenu */
@media (max-width:960px){
  .hero .inner{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .steps .st{display:grid;grid-template-columns:56px 1fr;column-gap:16px;padding:22px 24px}
  .steps .st .num{grid-row:1/3;border:0;padding:0;margin:2px 0 0;font-size:22px}
  .steps .st p{grid-column:2}
}

/* ≤820 px : tablette portrait & téléphone */
@media (max-width:820px){
  :root{--header-h:64px}
  html,body{overflow-x:hidden}
  header,footer{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
  .logo img{height:36px}
  .logo .name{font-size:20px}
  .cab,.exp,.case .grid,.ct,.ctgrid,.caps,.apropos-grid{grid-template-columns:1fr}
  .cab{grid-template-areas:"head" "body" "team";row-gap:32px}
  .hero .inner{grid-template-columns:1fr;gap:32px}
  .hero .art.photo{max-width:none;margin:0;order:2}
  .hero .art.photo img{aspect-ratio:16/10;object-position:50% 35%}
  .apropos-img img{min-height:0;aspect-ratio:16/10;height:auto}
  .ctimg{min-height:0;order:2}
  .ctimg img{aspect-ratio:16/9;height:auto}
  .founder{max-width:260px}
  .deal{grid-template-columns:1fr;gap:4px}
  .deal .mt{text-align:left}
  .arts .art{grid-template-columns:1fr;gap:4px}
  .foot{grid-template-columns:1fr}
  .foot .meta{justify-content:flex-start;text-align:left}
  .partner-feature{flex-direction:column;align-items:flex-start}
  .partner-logo-box{align-self:stretch}
  .partner-logo-box svg{height:90px}
  .coord{grid-template-columns:1fr 1fr}
}

/* ≤600 px : téléphone */
@media (max-width:600px){
  :root{--gut:20px;--fs-body:16.5px}
  .btn{width:100%}
  .hero .actions,.section-actions,.btn-row{flex-direction:column;align-items:stretch}
  .hero .actions .link-arrow,.section-actions .link-arrow{justify-content:center}
  .coord{grid-template-columns:1fr}
  .facts{gap:28px}
  .caps li{padding:18px 20px 18px 44px;font-size:15.5px}
  .caps li::before{left:20px;top:18px}
  .sect span,.sect li{padding:8px 14px;font-size:14.5px}
  .burger .burger-label{display:none}
}

@media (max-width:360px){
  :root{--gut:16px}
  .logo .tagline,.logo .tagline2{display:none}
  .foot-brand .bb-name{font-size:30px}
}

/* Paysage sur petit écran : l'en-tête ne reste pas collé pour libérer la hauteur */
@media (max-height:480px) and (orientation:landscape){
  header{position:relative}
  .mobile-panel{max-height:none}
}

/* 8. RTL (arabe) ------------------------------------------------------------ */
[dir="rtl"] body{direction:rtl;text-align:right}
[dir="rtl"] .lang-menu{margin-left:0;margin-right:8px}
[dir="rtl"] .lang-menu .lang-list{right:auto;left:0}
[dir="rtl"] nav.menu a.contact-link{margin-left:0;margin-right:10px}
[dir="rtl"] .burger{margin-right:0;margin-left:-12px}
[dir="rtl"] .cab .body li{padding-left:0;padding-right:24px}
[dir="rtl"] .cab .body li::before{left:auto;right:0}
[dir="rtl"] .caps li{padding:20px 48px 20px 24px}
[dir="rtl"] .caps li::before{left:auto;right:22px}
[dir="rtl"] .hero .triad{padding-left:0;padding-right:16px;border-left:0;border-right:2px solid var(--accent)}
[dir="rtl"] .hero .art.photo{margin-left:0;margin-right:auto}
[dir="rtl"] .deal .mt,[dir="rtl"] .foot .meta{text-align:left}
[dir="rtl"] .foot .meta{justify-content:flex-start}
[dir="rtl"] .mobile-panel nav a::after{content:"←"}
[dir="rtl"] .cab .body .highlight{border-left:0;border-right:3px solid var(--accent)}
@media (max-width:820px){
  [dir="rtl"] .deal .mt,[dir="rtl"] .foot .meta{text-align:right}
}

/* 9. Articles « Insights » et liens des études (ajout SEO, octobre 2026) ---- */
.arts .art a.t{text-decoration:none;display:block}
.arts .art a.t:hover,.arts .art a.t:focus-visible{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.card-link{color:inherit;text-decoration:none}
.card-link:hover{text-decoration:underline;text-underline-offset:4px}

.insights-index .insights-intro{margin-top:16px;color:var(--grey);font-size:18px;line-height:1.6;max-width:62ch}
.insights-index .arts .art .d{grid-column:2;font-size:var(--fs-small);color:var(--grey);line-height:1.6;margin-top:-12px}

.article-wrap{max-width:760px;margin:0 auto;padding:clamp(40px,6vw,80px) var(--gut) 96px}
.article-crumbs{font-size:var(--fs-small);color:var(--grey);margin-bottom:28px}
.article-crumbs a{color:var(--accent)}
.article-wrap .eyebrow{margin-bottom:14px}
.article-wrap h1{font-size:var(--fs-h1);line-height:1.15;margin-bottom:20px}
.article-lead{font-family:var(--serif);font-size:clamp(19px,2vw,22px);line-height:1.55;color:var(--ink);margin-bottom:20px}
.article-meta{font-size:var(--fs-small);color:var(--grey);padding-bottom:28px;margin-bottom:36px;border-bottom:1px solid var(--line)}
.article-wrap h2{font-size:clamp(23px,2.4vw,28px);line-height:1.25;margin:52px 0 16px}
.article-wrap p,.article-wrap li{line-height:1.75;color:var(--ink)}
.article-wrap p{margin-bottom:16px}
.article-wrap ul,.article-wrap ol{margin:0 0 20px 22px}
.article-wrap li{margin-bottom:10px}
.article-wrap a:not(.btn):not(.t){color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.article-key{background:var(--mist);border-left:3px solid var(--accent);padding:22px 26px 10px;margin:0 0 12px}
.article-key-title,.article-cta-title,.article-sources-title{font-size:var(--fs-xs);font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:12px !important}
.article-example{border:1px solid var(--line-strong);padding:20px 24px 6px;margin:8px 0 24px;background:var(--paper)}
.article-table{width:100%;border-collapse:collapse;margin:8px 0 24px;font-size:var(--fs-small)}
.article-table th,.article-table td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top;line-height:1.55}
.article-table thead th{border-bottom:2px solid var(--ink);font-weight:600}
.article-table tbody th{font-weight:600;color:var(--ink);width:24%}
.article-cta{background:var(--ink);color:#fff;padding:32px clamp(22px,4vw,40px);margin:56px 0 28px}
.article-cta p{color:var(--grey-on-dark)}
.article-cta .article-cta-title{color:var(--accent-light)}
.article-cta p:not(.article-cta-title){font-size:18px;margin-bottom:22px}
.article-disclaimer{font-size:var(--fs-small);color:var(--grey) !important}
.article-sources{margin-top:8px;font-size:var(--fs-small)}
.article-related{margin-top:56px}
.article-related h2{margin-top:0}
@media (max-width:820px){
  .article-table{display:block;overflow-x:auto}
  .insights-index .arts .art .d{grid-column:1;margin-top:0}
}