/* ==========================================================================
   LUX Numeris — Design system
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400&family=Inter:wght@400;500;600&display=swap');

:root{
  --navy-deep: #0B2436;
  --navy: #163B52;
  --blue: #4EB1DB;
  --blue-deep: #1F5C7A;
  --ink: #161B20;
  --paper: #FBFBFA;
  --paper-2: #F3F1EC;
  --red: #C6303A;
  --gray: #5C6670;
  --line: #E3E7E9;

  --serif: 'Newsreader', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --container: 1140px;
  --pad: clamp(20px, 4vw, 48px);
}

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

html{ scroll-behavior: smooth; }

body{
  margin:0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }

a{ color: var(--blue-deep); text-decoration: none; }
a:hover{ text-decoration: underline; }

h1,h2,h3,h4{
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--navy-deep);
  letter-spacing: -0.01em;
}

h1{ font-size: clamp(2.1rem, 4.4vw, 3.4rem); font-weight: 500; }
h2{ font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3{ font-size: 1.2rem; }

p{ margin: 0 0 1em; color: var(--ink); }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.eyebrow{
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--blue-deep);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:"";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--red);
  display: inline-block;
}

.lede{
  font-size: 1.15rem;
  color: var(--gray);
  max-width: 60ch;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 13px 26px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}
.btn:hover{ text-decoration: none; }
.btn-primary{
  background: var(--navy-deep);
  color: #fff;
}
.btn-primary:hover{ background: var(--blue-deep); }
.btn-ghost{
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.btn-ghost:hover{ background: rgba(255,255,255,0.1); }
.btn-line{
  background: transparent;
  border-color: var(--navy-deep);
  color: var(--navy-deep);
}
.btn-line:hover{ background: var(--navy-deep); color:#fff; }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(251,251,250,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--pad);
  max-width: var(--container);
  margin: 0 auto;
}
.brand{ display:flex; align-items:center; }
.brand img{ height: 30px; width:auto; }

.nav-links{
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  margin:0; padding:0;
}
.nav-links a{
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.nav-links a:hover, .nav-links a.active{
  color: var(--blue-deep);
  text-decoration: none;
  border-bottom-color: var(--blue);
}

.nav-right{ display:flex; align-items:center; gap:20px; }

.lang-toggle{
  display: flex;
  border: 1px solid var(--line);
  border-radius: 3px;
  overflow: hidden;
  font-size: 0.78rem;
  font-weight: 600;
}
.lang-toggle button{
  background: transparent;
  border: none;
  padding: 6px 11px;
  cursor: pointer;
  color: var(--gray);
  font-family: var(--sans);
}
.lang-toggle button.active{
  background: var(--navy-deep);
  color: #fff;
}

.nav-cta{
  padding: 9px 18px;
  font-size: 0.85rem;
}

.menu-toggle{
  display:none;
  background:none;
  border:none;
  cursor:pointer;
  padding: 6px;
}
.menu-toggle span{
  display:block;
  width:22px; height:2px;
  background: var(--ink);
  margin:5px 0;
}

/* ==========================================================================
   Hero with geometric mesh signature
   ========================================================================== */
.hero{
  position: relative;
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 62%, #1c4b66 100%);
  color: #fff;
  overflow: hidden;
  padding: 108px var(--pad) 96px;
}
.hero-mesh{
  position:absolute;
  inset:0;
  opacity: 0.35;
  pointer-events: none;
}
.hero-inner{
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
}
.hero h1{ color:#fff; max-width: 18ch; }
.hero .eyebrow{ color: var(--blue); }
.hero .eyebrow::before{ background: var(--red); }
.hero-lede{
  color: rgba(255,255,255,0.78);
  font-size: 1.12rem;
  max-width: 52ch;
  margin-bottom: 32px;
}
.hero-actions{ display:flex; gap: 16px; flex-wrap: wrap; }

.page-hero{
  position: relative;
  background: linear-gradient(160deg, var(--navy-deep) 0%, var(--navy) 100%);
  color:#fff;
  overflow:hidden;
  padding: 84px var(--pad) 68px;
}
.page-hero h1{ color:#fff; margin-bottom: 10px; }
.page-hero .eyebrow{ color: var(--blue); }
.page-hero .eyebrow::before{ background: var(--red); }
.page-hero p{ color: rgba(255,255,255,0.75); max-width: 60ch; }

/* ==========================================================================
   Sections
   ========================================================================== */
section{ padding: 84px var(--pad); }
.section-tight{ padding: 56px var(--pad); }
.container > section, .section-inner{ max-width: var(--container); margin:0 auto; }

.section-alt{ background: var(--paper-2); }
.section-navy{ background: var(--navy-deep); color:#fff; }
.section-navy h2{ color:#fff; }
.section-navy p{ color: rgba(255,255,255,0.75); }

.grid-2{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.grid-3{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.divider{
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* Service cards */
.service-card{
  background: #fff;
  border: 1px solid var(--line);
  padding: 34px 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.service-card:hover{
  border-color: var(--blue);
  transform: translateY(-3px);
}
.service-card .num{
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--blue);
  display:block;
  margin-bottom: 14px;
}
.service-card h3{ margin-bottom: 10px; }
.service-card p{ color: var(--gray); font-size: 0.96rem; margin:0; }

/* Values / stats */
.stat{
  border-left: 2px solid var(--blue);
  padding-left: 18px;
}
.stat .num{
  font-family: var(--serif);
  font-size: 2.6rem;
  color: var(--navy-deep);
  line-height: 1;
  display:block;
  margin-bottom: 6px;
}
.stat p{ color: var(--gray); margin:0; font-size: 0.92rem; }

/* Network / membership badges */
.badges{
  display:flex;
  gap: 40px;
  align-items:center;
  flex-wrap: wrap;
}
.badge{
  display:flex;
  align-items:center;
  gap: 12px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  background:#fff;
}
.badge .dot{
  width: 8px; height:8px; border-radius:50%;
  background: var(--blue);
  flex-shrink:0;
}
.badge strong{ display:block; font-size: 0.92rem; color: var(--navy-deep); }
.badge span{ display:block; font-size: 0.78rem; color: var(--gray); }
.badge a{ color: inherit; text-decoration: none; }
.badge a:hover span, .badge a:hover strong{ color: var(--blue-deep); text-decoration: underline; }
.badge .badge-logo{ height: 24px; max-height: 24px; width: auto; max-width: 130px; object-fit: contain; display: block; }

/* Colonne « Réseaux » de la page contact : moins d'air que sur les sections
   pleine largeur, sinon les deux logos passent à la ligne pour rien. */
.badges-compact{
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  max-width: 400px;
}
.badges-compact .badge{ padding: 12px 16px; }
.badges-compact .badge-logo{ height: 28px; max-height: 28px; max-width: 112px; }
.contact-networks-link{
  display:inline-block;
  margin-top: 14px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ==========================================================================
   Page « Nos réseaux »
   ========================================================================== */

/* Plaque logo : le logo d'un partenaire posé sur un carton blanc, pour qu'il
   respire au lieu d'être collé au texte. */
.network-plaque{
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: 20px;
  background:#fff;
  border: 1px solid var(--line);
  padding: 48px 36px;
  min-height: 220px;
}
.network-plaque img{
  width: 100%;
  max-width: 280px;
  height: auto;
  object-fit: contain;
}
.network-plaque-label{
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--gray);
  text-align:center;
}

/* Présence géographique */
.presence-title{
  font-size: 1.2rem;
  margin-bottom: 26px;
}
.presence-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.presence-card{
  background:#fff;
  border: 1px solid var(--line);
  border-top: 2px solid var(--blue);
  padding: 24px 22px;
}
.presence-code{
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--blue);
  line-height:1;
  display:block;
  margin-bottom: 10px;
}
.presence-card strong{
  display:block;
  font-size: 1.02rem;
  color: var(--navy-deep);
  margin-bottom: 4px;
}
.presence-card p{
  margin:0;
  font-size: 0.9rem;
  color: var(--gray);
}

/* Équipe du réseau */
.team-group{ margin-top: 48px; }
.team-country{
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  color: var(--navy-deep);
  padding-bottom: 12px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}
.team-grid{
  display:grid;
  /* auto-fill (et non auto-fit) : les groupes de 2 gardent la même largeur de
     carte que celui d'un seul membre, sinon le Luxembourg s'étalerait tout seul. */
  grid-template-columns: repeat(auto-fill, minmax(430px, 1fr));
  gap: 24px;
}
/* Carte horizontale : portrait à gauche, texte à droite. Une carte verticale
   laissait les rangées de deux membres à moitié vides. */
.member-card{
  display:flex;
  flex-direction: row;
  align-items: stretch;
  background:#fff;
  border: 1px solid var(--line);
  color: inherit;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.member-card:hover{
  border-color: var(--blue);
  transform: translateY(-3px);
  text-decoration: none;
}
/* Le visuel est une colonne de largeur fixe qui s'étire sur la hauteur de la
   carte. La photo la remplit en height:100% : sans ce conteneur, les attributs
   width/height de la balise <img> imposent une hauteur de 552px et étirent
   toute la carte. */
.member-visuel{
  flex: 0 0 172px;
  width: 172px;
  align-self: stretch;
  min-height: 206px;          /* 172px en 5:6, plancher si le texte est court */
  background: var(--paper-2);
  /* Certains portraits sont détourés sur fond blanc : sans ce filet, ils se
     confondent avec la carte et le sujet semble flotter. */
  border-right: 1px solid var(--line);
  overflow: hidden;
}
.member-photo{
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Un peu sous le haut du cadre : cadrer sur les yeux plutôt que sur le crâne. */
  object-position: center 18%;
  /* Les portraits fournis par Grisay sont déjà en noir et blanc ; ce filtre
     garantit l'uniformité si l'un d'eux est remplacé par une photo couleur. */
  filter: grayscale(1);
}
.member-initials{
  display:flex;
  width: 100%;
  height: 100%;
  align-items:center;
  justify-content:center;
  font-family: var(--serif);
  font-size: 2.4rem;
  color: var(--blue-deep);
  background: linear-gradient(160deg, var(--paper-2) 0%, #E7E9E6 100%);
  letter-spacing: 0.04em;
}
.member-body{
  display:flex;
  flex-direction: column;
  padding: 22px 24px;
  min-width: 0;
}
.member-name{
  font-family: var(--serif);
  font-size: 1.12rem;
  color: var(--navy-deep);
  margin-bottom: 2px;
}
.member-role{
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 12px;
}
.member-bio{
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.55;
  flex-grow: 1;
}
.member-link{
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-deep);
  margin-top: 14px;
}
.member-card:hover .member-link{ text-decoration: underline; }

.footer-social{ display:flex; align-items:center; gap:14px; margin-top:18px; }
.footer-social a{
  color: rgba(255,255,255,0.7);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  width: 34px; height: 34px;
  display:flex; align-items:center; justify-content:center;
  transition: all 0.2s ease;
}
.footer-social a:hover{ color:#fff; border-color: var(--blue); background: rgba(78,177,219,0.12); text-decoration:none; }

/* Contact */
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
}
.contact-info dt{
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-deep);
  font-weight: 600;
  margin-top: 26px;
}
.contact-info dt:first-child{ margin-top:0; }
.contact-info dd{
  margin: 6px 0 0;
  font-size: 1.02rem;
  color: var(--ink);
}

.form-group{ margin-bottom: 20px; }
.form-group label{
  display:block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--navy-deep);
}
.form-group input,
.form-group textarea{
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fff;
  font-family: var(--sans);
  font-size: 0.96rem;
  color: var(--ink);
}
.form-group input:focus,
.form-group textarea:focus{
  outline: none;
  border-color: var(--blue);
}
.form-note{
  font-size: 0.8rem;
  color: var(--gray);
  margin-top: 10px;
}

.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Footer */
.site-footer{
  background: var(--navy-deep);
  color: rgba(255,255,255,0.7);
  padding: 56px var(--pad) 28px;
}
.footer-grid{
  max-width: var(--container);
  margin: 0 auto;
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-grid img{ height: 24px; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer-grid h4{
  color:#fff;
  font-family: var(--sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.footer-grid ul{ list-style:none; margin:0; padding:0; }
.footer-grid li{ margin-bottom: 10px; }
.footer-grid a{ color: rgba(255,255,255,0.7); font-size: 0.92rem; }
.footer-grid a:hover{ color:#fff; }
.footer-bottom{
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 22px;
  display:flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 860px){
  .nav-links{
    position: fixed;
    top: 64px; left:0; right:0;
    background: var(--paper);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px var(--pad) 20px;
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform 0.25s ease;
  }
  .nav-links.open{ transform: translateY(0); }
  .nav-links li{ width:100%; padding: 10px 0; border-bottom: 1px solid var(--line); }
  .nav-links a{ display:block; }
  .menu-toggle{ display:block; }
  .nav-cta{ display:none; }

  .grid-2, .grid-3{ grid-template-columns: 1fr; }
  .contact-grid{ grid-template-columns: 1fr; gap: 40px; }
  .footer-grid{ grid-template-columns: 1fr; gap: 28px; }
  .badges{ gap: 16px; }

  .presence-grid{ grid-template-columns: 1fr; gap: 16px; }
  .team-grid{ grid-template-columns: 1fr; gap: 18px; }
  /* Le logo passe sous le texte : inutile de lui garder une hauteur de plaque. */
  .network-plaque{ min-height: 0; padding: 32px 24px; }
}

@media (max-width: 520px){
  .member-visuel{ flex-basis: 128px; width: 128px; min-height: 154px; }
  .member-body{ padding: 18px 18px; }
  .member-initials{ font-size: 1.8rem; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ transition: none !important; }
}