/* =========================================================
   NeodonStudio — styles.css
   Identité : bleu marine / cyan, logo {N}
   Polices chargées depuis le <head> HTML (voir <link> avec
   preconnect), pas via @import — plus rapide au chargement.
   ========================================================= */

:root {
  /* Couleurs — identité bleu marine / cyan (logo NeodonStudio) */
  /* Bleu marine dominant, cyan réservé aux accents (comme le logo) */
  --color-cream: #F4F7FA;
  --color-paper: #E8EEF3;
  --color-paper-line: #D3DEE7;
  --color-ink: #0B1220;
  --color-ink-soft: #4A5568;
  --color-terracotta: #16233D;
  --color-terracotta-dark: #060A12;
  --color-amber: #2FC5D9;
  --color-amber-soft: #CFF3F7;
  --color-cream-rgb: 244, 247, 250;
  --color-navy: #0B1220;
  --color-navy-soft: #141F35;

  /* Typo */
  --font-display: 'Palatino Linotype', Palatino, 'Book Antiqua', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, SFMono-Regular, monospace;

  /* Rythme */
  --radius: 10px;
  --radius-lg: 18px;
  --shadow-soft: 0 12px 30px -14px rgba(42, 33, 26, 0.28);
  --shadow-tab: 0 2px 0 0 var(--color-paper-line);
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Curseur personnalisé (flèche en dégradé) ---------- */
html.curseur-personnalise-actif,
html.curseur-personnalise-actif body,
html.curseur-personnalise-actif * {
  cursor: none !important;
}
.curseur-personnalise {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transition: opacity 0.2s ease, transform 0.12s ease-out;
  will-change: transform;
  filter: drop-shadow(0 2px 4px rgba(11,18,32,0.25));
}
.curseur-personnalise svg {
  display: block;
  transform-origin: 50% 50%;
  transition: transform 0.18s ease;
}
.curseur-personnalise.curseur-personnalise-survol svg {
  transform: scale(1.3) rotate(8deg);
}
.curseur-trainee-point {
  position: fixed;
  top: 0; left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: opacity 0.2s ease;
  will-change: transform;
}

body {
  margin: 0;
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.conteneur {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Eyebrow "commentaire de code" ---------- */
.sur-titre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-terracotta-dark);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px 0;
}
.sur-titre::before { content: "//"; color: var(--color-amber); font-weight: 600; }

/* ---------- Header + barre d'onglets "éditeur" ---------- */
.site-entete {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(var(--color-cream-rgb), 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-paper-line);
}

.entete-interieur {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--color-ink);
  flex-shrink: 0;
}
.logo-mark {
  font-family: var(--font-mono);
  color: var(--color-terracotta);
  font-weight: 600;
  margin-right: 2px;
}
.logo-icone {
  height: 52px;
  width: 52px;
  object-fit: cover;
  border-radius: 11px;
  flex-shrink: 0;
  box-shadow: 0 3px 12px -4px rgba(11,18,32,0.45);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.logo:hover .logo-icone {
  transform: translateY(-1px) scale(1.03);
  box-shadow: 0 6px 20px -5px rgba(31,168,189,0.65);
}
.logo-neodon {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1;
  background: linear-gradient(95deg, #0B1220 0%, #0F2740 55%, #164C6B 82%, #1B7E96 100%);
  background-size: 100% 100%;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-ink); /* repli si background-clip non supporté */
  transition: background-position 0.55s ease;
}
.logo:hover .logo-neodon {
  background: linear-gradient(95deg, #0F2740 0%, #164C6B 55%, #1B7E96 82%, #1FA8BD 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.logo-studio {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1.35rem;
  color: var(--color-ink-soft);
  line-height: 1;
  position: relative;
  transition: color 0.25s ease;
}
.logo:hover .logo-studio { color: #1FA8BD; }
/* Trait cyan sous "Studio", écho au liseré du logo */
.logo-studio::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-amber), #1FA8BD);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}
.logo:hover .logo-studio::after { transform: scaleX(1); }

/* ---------- Navigation ---------- */
.nav-principale {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-lien {
  position: relative;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--color-ink-soft);
  padding: 10px 18px;
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.18s ease, background 0.18s ease;
}
/* Soulignement dégradé animé */
.nav-lien::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-amber), #1FA8BD);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s ease;
}
.nav-lien:hover {
  color: var(--color-ink);
  background: linear-gradient(135deg, rgba(47,197,217,0.13), rgba(22,35,61,0.07));
}
.nav-lien:hover::after { transform: scaleX(1); }
.nav-lien.actif {
  color: var(--color-ink);
  font-weight: 600;
  background: linear-gradient(135deg, rgba(47,197,217,0.18), rgba(22,35,61,0.06));
}
.nav-lien.actif::after { transform: scaleX(1); }

.nav-action {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--color-cream);
  background: linear-gradient(135deg, #1FA8BD 0%, var(--color-terracotta) 55%, var(--color-terracotta-dark) 100%);
  padding: 12px 26px;
  border-radius: 999px;
  margin-left: 10px;
  white-space: nowrap;
  box-shadow: 0 6px 18px -8px rgba(31,168,189,0.55);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.nav-action:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -8px rgba(31,168,189,0.7);
}

.nav-bascule {
  display: none;
  background: none;
  border: 1px solid var(--color-paper-line);
  border-radius: var(--radius);
  padding: 8px 10px;
  font-family: var(--font-mono);
  cursor: pointer;
  color: var(--color-ink);
}

/* ---------- Boutons ---------- */
.bouton {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.bouton-principal {
  background: linear-gradient(135deg, var(--color-terracotta), var(--color-terracotta-dark));
  color: var(--color-cream);
  box-shadow: var(--shadow-soft);
}
.bouton-principal:hover { transform: translateY(-2px); }
.bouton-fantome {
  background: transparent;
  border-color: var(--color-paper-line);
  color: var(--color-ink);
}
.bouton-fantome:hover { border-color: var(--color-terracotta); color: var(--color-terracotta-dark); }

/* ---------- Hero (bannière pleine largeur) ---------- */
.heros-bandeau {
  position: relative;
  background-color: var(--color-terracotta-dark);
  background-image: url("assets/hero-photo.jpg");
  background-size: cover;
  background-position: center right;
  background-repeat: no-repeat;
  color: var(--color-cream);
  padding: 116px 0 112px;
  text-align: left;
  overflow: hidden;
}
.heros-bandeau::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(96deg, rgba(6,10,18,0.93) 0%, rgba(8,14,26,0.86) 32%, rgba(11,18,32,0.55) 60%, rgba(11,18,32,0.18) 100%);
  pointer-events: none;
}
.heros-bandeau .conteneur { position: relative; }
.heros-contenu { max-width: 46rem; }
.heros-bandeau .sur-titre {
  color: var(--color-amber-soft);
  justify-content: flex-start;
}
.heros-bandeau .sur-titre::before { color: var(--color-cream); }
.heros-bandeau h1 {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 4.2vw, 3.6rem);
  line-height: 1.12;
  margin: 0 0 22px;
  max-width: 22ch;
  font-weight: 700;
}
.heros-bandeau h1 em {
  font-style: italic;
  color: var(--color-amber-soft);
}
.heros-bandeau p.chapeau {
  font-size: 1.12rem;
  color: rgba(251, 245, 236, 0.9);
  max-width: 48ch;
  margin: 0 0 34px;
}
.heros-bandeau .heros-actions { justify-content: flex-start; }
.bouton-clair {
  background: var(--color-cream);
  color: var(--color-terracotta-dark);
}
.bouton-clair:hover { transform: translateY(-2px); }
.bouton-contour-clair {
  background: transparent;
  border-color: rgba(251,245,236,0.5);
  color: var(--color-cream);
}
.bouton-contour-clair:hover { border-color: var(--color-cream); }

.heros-actions { display: flex; gap: 14px; flex-wrap: wrap; justify-content: flex-start; }

/* ---------- Sections génériques ---------- */
section { padding: 84px 0; }
.section-titre { max-width: 52ch; margin-bottom: 48px; }
.section-titre h2 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 2.3vw, 2.05rem);
  line-height: 1.22;
  margin: 0 0 14px;
  max-width: 24ch;
}
.section-titre p { color: var(--color-ink-soft); margin: 0; font-size: 1.02rem; max-width: 54ch; }

/* En-tête de section centré */
.section-titre-centre {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  max-width: 58ch;
}
.section-titre-centre h2 {
  max-width: 26ch;
  margin-left: auto;
  margin-right: auto;
  padding-bottom: 18px;
  position: relative;
}
.section-titre-centre h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 68px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, #1FA8BD, var(--color-amber));
}
.section-titre-centre p { margin-left: auto; margin-right: auto; }
.section-titre-centre .sur-titre { justify-content: center; }

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

/* Section au fond marine, avec halos cyan */
.section-teintee {
  position: relative;
  background:
    radial-gradient(circle at 15% 12%, rgba(47,197,217,0.20), transparent 45%),
    radial-gradient(circle at 85% 88%, rgba(31,168,189,0.16), transparent 48%),
    linear-gradient(165deg, #0B1220 0%, #101C31 55%, #16233D 100%);
  border-top: 1px solid rgba(47,197,217,0.18);
  color: var(--color-cream);
  overflow: hidden;
}
/* Filet lumineux en haut, pour séparer du hero */
.section-teintee::before {
  content: "";
  position: absolute;
  top: 0; left: 12%; right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77,216,232,0.55), transparent);
}
.section-teintee .section-titre h2 { color: var(--color-cream); }
.section-teintee .section-titre p { color: rgba(244,247,250,0.78); }
.section-teintee .sur-titre { color: #7FE3F0; }
.section-teintee .sur-titre::before { color: var(--color-amber); }

/* Cartes sur fond marine */
.section-teintee .carte {
  background: linear-gradient(165deg, rgba(255,255,255,0.22) 0%, rgba(160,225,238,0.16) 100%);
  border-color: rgba(120,220,236,0.40);
  box-shadow: 0 4px 20px -10px rgba(0,0,0,0.45);
  backdrop-filter: blur(3px);
}
.section-teintee .carte h3 { color: #FFFFFF; }
.section-teintee .carte p { color: rgba(248,252,254,0.90); }
.section-teintee .carte::after {
  background: radial-gradient(circle, rgba(120,225,240,0.34), transparent 70%);
}
.section-teintee .carte:hover {
  background: linear-gradient(165deg, rgba(255,255,255,0.30) 0%, rgba(160,225,238,0.22) 100%);
  border-color: rgba(150,235,248,0.75);
  box-shadow: 0 22px 44px -18px rgba(0,0,0,0.6);
}
.section-teintee .section-titre-centre h2::after {
  background: linear-gradient(90deg, #4DD8E8, var(--color-amber));
}

/* Niveau 2 : marine plus clair, poursuite du dégradé en descendant */
.section-teintee-2 {
  position: relative;
  background:
    radial-gradient(circle at 18% 15%, rgba(47,197,217,0.16), transparent 46%),
    radial-gradient(circle at 82% 85%, rgba(31,168,189,0.13), transparent 48%),
    linear-gradient(165deg, #24406A 0%, #35608C 55%, #4A7BA8 100%);
  border-bottom: 1px solid rgba(47,197,217,0.16);
  color: var(--color-cream);
  overflow: hidden;
}
.section-teintee-2 .section-titre h2 { color: var(--color-cream); }
.section-teintee-2 .section-titre p { color: rgba(244,247,250,0.82); }
.section-teintee-2 .sur-titre { color: #9DECF7; }
.section-teintee-2 .sur-titre::before { color: var(--color-amber); }
.section-teintee-2 .carte {
  background: linear-gradient(165deg, rgba(255,255,255,0.26) 0%, rgba(175,232,244,0.18) 100%);
  border-color: rgba(140,228,242,0.42);
  box-shadow: 0 4px 20px -10px rgba(0,0,0,0.35);
  backdrop-filter: blur(3px);
}
.section-teintee-2 .carte h3 { color: #FFFFFF; }
.section-teintee-2 .carte p { color: rgba(248,252,254,0.92); }
.section-teintee-2 .carte::after {
  background: radial-gradient(circle, rgba(140,232,246,0.32), transparent 70%);
}
.section-teintee-2 .carte:hover {
  background: linear-gradient(165deg, rgba(255,255,255,0.34) 0%, rgba(175,232,244,0.24) 100%);
  border-color: rgba(165,240,250,0.75);
  box-shadow: 0 22px 44px -18px rgba(0,0,0,0.5);
}
.section-teintee-2 .section-titre-centre h2::after {
  background: linear-gradient(90deg, #7FE3F0, var(--color-amber));
}

/* Niveau 4 : dernier palier avant le blanc */
.section-teintee-4 {
  position: relative;
  background: linear-gradient(180deg, #CFE3EF 0%, #E4EFF6 55%, #F4F8FB 100%);
  overflow: hidden;
}

/* ---------- Section tarifs (2 colonnes) ---------- */
.section-tarifs {
  position: relative;
  background:
    radial-gradient(circle at 20% 12%, rgba(47,197,217,0.14), transparent 48%),
    radial-gradient(circle at 82% 88%, rgba(31,168,189,0.10), transparent 50%),
    linear-gradient(165deg, #A9C7DE 0%, #BCD6E7 55%, #CFE3EF 100%);
  color: var(--color-ink);
  overflow: hidden;
}
.section-tarifs .section-titre h2 { color: var(--color-ink); }
.section-tarifs .section-titre p { color: var(--color-ink-soft); }
.section-tarifs .sur-titre { color: #0E6B7D; }
.section-tarifs .sur-titre::before { color: #1FA8BD; }
.section-tarifs .section-titre-centre h2::after {
  background: linear-gradient(90deg, #1FA8BD, var(--color-amber));
}

.tarifs-comparatif {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid rgba(31,168,189,0.30);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255,255,255,0.82);
  box-shadow: 0 14px 36px -20px rgba(11,18,32,0.28);
}
.tarifs-colonne {
  padding: 44px 40px 46px;
  position: relative;
}
.tarifs-colonne + .tarifs-colonne {
  border-left: 1px solid rgba(31,168,189,0.24);
}
.tarifs-colonne.vedette {
  background: linear-gradient(170deg, rgba(47,197,217,0.12), rgba(255,255,255,0));
}
.tarifs-colonne h3 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0;
  color: #0E3A52;
}
.pricing-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: #FFFFFF;
  background: linear-gradient(135deg, #1FA8BD, #0E6B7D);
  border-radius: 999px;
  padding: 5px 12px;
  margin-bottom: 14px;
}
.tarifs-optionnel {
  display: inline-block;
  vertical-align: middle;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0E6B7D;
  background: rgba(47,197,217,0.14);
  border: 1px solid rgba(31,168,189,0.40);
  border-radius: 999px;
  padding: 4px 10px;
  margin-left: 8px;
  position: relative;
  top: -2px;
}
.tarifs-depuis {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #0E6B7D;
  margin: 26px 0 6px;
}
.tarifs-montant {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  font-family: var(--font-display);
  line-height: 1;
  margin: 0 0 20px;
}
.tarifs-devise {
  font-size: 1.25rem;
  color: #1FA8BD;
  margin-top: 8px;
}
.tarifs-valeur {
  font-size: 4rem;
  font-weight: 700;
  color: #0E3A52;
}
.tarifs-periode {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-ink-soft);
  align-self: flex-end;
  margin-bottom: 8px;
}
.tarifs-description {
  color: var(--color-ink-soft);
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
}
.tarifs-description strong { color: var(--color-ink); }
.tarifs-separateur {
  border: none;
  border-top: 1px solid rgba(31,168,189,0.24);
  margin: 32px 0 26px;
}
.etiquette-inclus {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin: 0 0 18px;
}
.liste-inclus {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.liste-inclus li {
  position: relative;
  padding-left: 28px;
  color: var(--color-ink);
  font-size: 0.96rem;
}
.liste-inclus li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #1FA8BD;
  font-weight: 700;
}
.tarifs-note {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.65;
  margin: 26px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(31,168,189,0.24);
}
.tarifs-note strong { color: #0E6B7D; font-style: normal; }
.tarifs-actions {
  margin-top: 36px;
  text-align: center;
}

/* ---------- Grilles / cartes ---------- */
.grille {
  display: grid;
  gap: 24px;
}
.grille-3 { grid-template-columns: repeat(3, 1fr); }
.grille-2 { grid-template-columns: repeat(2, 1fr); }

.carte {
  position: relative;
  background: linear-gradient(165deg, #FFFFFF 0%, #FAFDFE 55%, #F2FAFC 100%);
  border: 1px solid var(--color-paper-line);
  border-radius: var(--radius-lg);
  padding: 34px 30px 32px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(11,18,32,0.05);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
/* Liseré cyan permanent, qui s'intensifie au survol */
.carte::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #1FA8BD, #4DD8E8 55%, var(--color-amber));
  opacity: 0.55;
  transition: opacity 0.3s ease;
}
/* Halo cyan discret dans le coin */
.carte::after {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 130px; height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47,197,217,0.16), transparent 70%);
  pointer-events: none;
  transition: opacity 0.3s ease;
  opacity: 0.9;
}
.carte:hover {
  transform: translateY(-6px);
  border-color: rgba(31,168,189,0.45);
  box-shadow: 0 20px 40px -18px rgba(14,107,125,0.38);
}
.carte:hover::before { opacity: 1; }
.carte:hover::after { opacity: 1; }
.carte h3 {
  font-family: var(--font-display);
  font-size: 1.28rem;
  margin: 0 0 12px;
  letter-spacing: 0.005em;
  color: #0E3A52;
  position: relative;
}
.carte p { color: var(--color-ink-soft); margin: 0; font-size: 0.98rem; line-height: 1.65; position: relative; }
/* Pastille numérotée */
.carte .carte-icone {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  background: linear-gradient(140deg, #1FA8BD 0%, #0E6B7D 100%);
  border: none;
  box-shadow: 0 5px 14px -5px rgba(31,168,189,0.6);
  margin-bottom: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.carte:hover .carte-icone {
  transform: translateY(-2px) rotate(-4deg);
  box-shadow: 0 9px 20px -6px rgba(31,168,189,0.75);
}

/* Accessibilité : contour visible au focus clavier */
a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-amber-soft);
  outline-offset: 2px;
}

/* ---------- CTA band ---------- */
.bandeau-action {
  position: relative;
  background:
    radial-gradient(circle at 12% 20%, rgba(47,197,217,0.30), transparent 50%),
    radial-gradient(circle at 88% 80%, rgba(31,168,189,0.22), transparent 52%),
    linear-gradient(135deg, #0B1220 0%, #14263F 55%, #1B3A57 100%);
  border: 1px solid rgba(47,197,217,0.28);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  overflow: hidden;
  box-shadow: 0 20px 48px -24px rgba(11,18,32,0.55);
}
/* Filet lumineux en haut du bloc */
.bandeau-action::before {
  content: "";
  position: absolute;
  top: 0; left: 8%; right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #4DD8E8, var(--color-amber), transparent);
  opacity: 0.75;
}
.bandeau-action h2 {
  font-family: var(--font-display);
  margin: 0 0 10px;
  font-size: 1.85rem;
  color: #FFFFFF;
  position: relative;
}
.bandeau-action p {
  margin: 0;
  color: rgba(244,247,250,0.82);
  position: relative;
}
.bandeau-action .bouton-principal {
  position: relative;
  background: linear-gradient(135deg, #4DD8E8 0%, #1FA8BD 100%);
  color: #06222A;
  box-shadow: 0 8px 22px -8px rgba(77,216,232,0.6);
}
.bandeau-action .bouton-principal:hover {
  box-shadow: 0 12px 28px -8px rgba(77,216,232,0.8);
}

/* ---------- Footer ---------- */
.site-pied {
  position: relative;
  background:
    radial-gradient(circle at 15% 10%, rgba(47,197,217,0.14), transparent 45%),
    linear-gradient(170deg, #0B1220 0%, #0E1828 60%, #101E33 100%);
  color: var(--color-cream);
  padding: 64px 0 26px;
  margin-top: 0;
}
.site-pied::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77,216,232,0.5), transparent);
}
.pied-grille {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.pied-marque .logo-neodon {
  background: linear-gradient(105deg, #FFFFFF 0%, #9DECF7 60%, #4DD8E8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--color-cream);
}
.pied-marque .logo-studio { color: #9DECF7; }
.pied-marque .logo:hover .logo-studio { color: #4DD8E8; }
.pied-marque p {
  color: rgba(244, 247, 250, 0.72);
  max-width: 32ch;
  margin: 14px 0 18px;
  font-size: 0.95rem;
}
.pied-social {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: rgba(244, 247, 250, 0.76);
  text-decoration: none;
  margin-bottom: 11px;
  transition: color 0.18s ease, transform 0.18s ease;
}
.pied-social svg {
  flex-shrink: 0;
}
.pied-social:hover {
  color: #FFFFFF;
  transform: translateX(2px);
}
.pied-colonne h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: #7FE3F0;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}
.pied-colonne a, .pied-colonne p {
  display: block;
  color: rgba(244, 247, 250, 0.76);
  text-decoration: none;
  font-size: 0.92rem;
  margin-bottom: 11px;
  transition: color 0.18s ease;
}
.pied-colonne a:hover { color: #4DD8E8; }
.pied-bas {
  border-top: 1px solid rgba(47,197,217,0.18);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(244, 247, 250, 0.5);
}

/* ---------- Grille 4 colonnes (processus) ---------- */
.grille-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- FAQ ---------- */
.liste-faq {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.element-faq {
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(31,168,189,0.22);
  border-radius: var(--radius);
  padding: 0;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.element-faq:hover {
  border-color: rgba(31,168,189,0.5);
  background: rgba(255,255,255,0.92);
}
.element-faq[ouvert] {
  background: #FFFFFF;
  border-color: rgba(31,168,189,0.5);
  box-shadow: 0 10px 28px -16px rgba(11,18,32,0.28);
}
.element-faq summary {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  color: #0E3A52;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
}
.element-faq summary::-webkit-details-marker { display: none; }
.element-faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1;
  color: #FFFFFF;
  background: linear-gradient(135deg, #1FA8BD, #0E6B7D);
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
.element-faq[ouvert] summary::after {
  content: "−";
  transform: rotate(180deg);
}
.element-faq p {
  color: var(--color-ink-soft);
  margin: 0;
  padding: 0 24px 22px;
  max-width: 68ch;
  line-height: 1.7;
}

.liste-coche {
  list-style: none;
  padding: 0;
  margin: 6px 0 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.liste-coche li {
  padding-left: 26px;
  position: relative;
  color: var(--color-ink-soft);
}
.liste-coche li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-terracotta);
  font-weight: 700;
  font-family: var(--font-mono);
}
.section-teintee .liste-coche li::before,
.section-teintee-2 .liste-coche li::before {
  color: #4DD8E8;
}

.pied-bas a {
  color: rgba(244, 247, 250, 0.6);
  text-decoration: none;
  transition: color 0.18s ease;
}
.pied-bas a:hover { color: #4DD8E8; }

/* ---------- Encart info (bon à savoir) ---------- */
.encart-info {
  position: relative;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: linear-gradient(160deg, #E4EFF6 0%, #F1F6FA 100%);
  border: 1px solid rgba(31,168,189,0.28);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  overflow: hidden;
}
.encart-info::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(180deg, #1FA8BD, var(--color-amber));
}
.encart-info-icone {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(140deg, #1FA8BD 0%, #0E6B7D 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 16px -6px rgba(31,168,189,0.55);
}
.encart-info h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 10px;
  color: #0E3A52;
}
.encart-info p {
  color: var(--color-ink-soft);
  margin: 0;
  line-height: 1.7;
}
.encart-info .sur-titre { margin-bottom: 8px; }

/* ---------- Pages légales ---------- */
.heros-legal {
  padding: 64px 0 32px;
  border-bottom: 1px solid var(--color-paper-line);
}
.heros-legal h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  margin: 0 0 10px;
}
.heros-legal p { color: var(--color-ink-soft); margin: 0; }
.contenu-legal {
  max-width: 760px;
  margin: 0 auto;
  padding: 52px 0 80px;
}
.contenu-legal h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: #0E3A52;
  margin: 42px 0 14px;
}
.contenu-legal h2:first-child { margin-top: 0; }
.contenu-legal h3 {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-ink);
  margin: 26px 0 10px;
}
.contenu-legal p {
  color: var(--color-ink-soft);
  line-height: 1.75;
  margin: 0 0 14px;
}
.contenu-legal ul {
  color: var(--color-ink-soft);
  line-height: 1.75;
  margin: 0 0 14px;
  padding-left: 22px;
}
.contenu-legal li { margin-bottom: 6px; }
.contenu-legal strong { color: var(--color-ink); }
.contenu-legal a { color: #0E6B7D; text-decoration: underline; }
.note-legale {
  background: var(--color-paper);
  border: 1px solid var(--color-paper-line);
  border-left: 3px solid #1FA8BD;
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
}
.sommaire-legal {
  background: var(--color-paper);
  border: 1px solid var(--color-paper-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 12px;
}
.sommaire-legal p { font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-ink-soft); margin: 0 0 12px; }
.sommaire-legal ol { margin: 0; padding-left: 20px; color: var(--color-ink); }
.sommaire-legal li { margin-bottom: 6px; }
.sommaire-legal a { color: var(--color-ink); text-decoration: none; }
.sommaire-legal a:hover { color: #0E6B7D; text-decoration: underline; }
@media (max-width: 860px) {
  .tarifs-comparatif { grid-template-columns: 1fr; }
  .tarifs-colonne + .tarifs-colonne {
    border-left: none;
    border-top: 1px solid rgba(47,197,217,0.22);
  }
  .tarifs-colonne { padding: 36px 28px 38px; }
  .tarifs-valeur { font-size: 3.2rem; }
  .grille-3, .grille-4 { grid-template-columns: 1fr 1fr; }
  .bandeau-action { flex-direction: column; align-items: flex-start; }
  .pied-grille { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .encart-info { flex-direction: column; padding: 28px 24px; }
  .heros-bandeau { text-align: center; background-position: 62% center; padding: 80px 0 76px; }
  .heros-bandeau::before {
    background: linear-gradient(180deg, rgba(6,10,18,0.88) 0%, rgba(8,14,26,0.82) 60%, rgba(11,18,32,0.86) 100%);
  }
  .heros-contenu { max-width: 100%; }
  .heros-bandeau .sur-titre { justify-content: center; }
  .heros-bandeau h1 { max-width: 100%; margin: 0 auto 22px; }
  .heros-bandeau p.chapeau { margin: 0 auto 30px; }
  .heros-bandeau .heros-actions { justify-content: center; }
  .grille-3, .grille-2, .grille-4 { grid-template-columns: 1fr; }
  .nav-bascule { display: inline-flex; }
  .nav-principale {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-cream);
    border-bottom: 1px solid var(--color-paper-line);
    flex-direction: column;
    align-items: stretch;
    padding: 6px 16px 14px;
    display: none;
  }
  .nav-principale.ouvert { display: flex; }
  .nav-lien { border-radius: var(--radius); }
  .nav-lien::after { display: none; }
  .nav-lien.actif { border-left: 3px solid var(--color-amber); }
  .logo-icone { height: 42px; width: 42px; border-radius: 9px; }
  .logo-neodon { font-size: 1.45rem; }
  .logo-studio { font-size: 1.1rem; }
  .nav-action { margin: 6px 0 0; text-align: center; }
  .site-entete { position: sticky; }
  .entete-interieur { position: relative; }
  .pied-grille { grid-template-columns: 1fr; gap: 30px; }
}