/* ==========================================================================
   eFluxX — site public
   Aucune police externe : pile système uniquement.
   Google Fonts imposerait une requête vers Google (latence + transfert de
   données personnelles vers un tiers, discutable au regard du RGPD).
   ========================================================================== */

:root {
  --nuit: #0F172A;
  --bleu: #2563EB;
  --bleu-fonce: #1D4ED8;
  --indigo: #6D28D9;
  --cyan: #22D3EE;
  --fond: #F8FAFC;
  --blanc: #FFFFFF;

  --gris-900: #0F172A;
  --gris-700: #334155;
  --gris-600: #475569;
  --gris-500: #64748B;
  --gris-300: #CBD5E1;
  --gris-200: #E2E8F0;
  --gris-100: #F1F5F9;

  --vert: #059669;
  --vert-clair: #ECFDF5;
  --ambre: #B45309;
  --ambre-clair: #FFFBEB;
  --rouge: #DC2626;

  --degrade: linear-gradient(115deg, #6D28D9 0%, #2563EB 55%, #22D3EE 100%);

  --rayon: 14px;
  --rayon-sm: 9px;
  --ombre: 0 1px 3px rgba(15, 23, 42, .07), 0 8px 24px -8px rgba(15, 23, 42, .12);
  --ombre-forte: 0 2px 6px rgba(15, 23, 42, .08), 0 20px 50px -12px rgba(15, 23, 42, .22);

  --largeur: 1140px;
  --police: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
            "Helvetica Neue", Arial, sans-serif;
}

/* --- Réinitialisation ---------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--police);
  font-size: 17px;
  line-height: 1.65;
  color: var(--gris-700);
  background: var(--blanc);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--bleu); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--gris-900);
  line-height: 1.18;
  letter-spacing: -.022em;
  font-weight: 800;
  text-wrap: balance;
}

h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); }
h2 { font-size: clamp(1.65rem, 3.6vw, 2.4rem); }
h3 { font-size: 1.2rem; font-weight: 700; }

p { text-wrap: pretty; }

/* Les exposants (1er) prenaient trop de place et cassaient l'alignement. */
sup {
  font-size: .62em;
  line-height: 0;
  vertical-align: super;
  margin-left: .02em;
}

:focus-visible {
  outline: 3px solid var(--bleu);
  outline-offset: 2px;
  border-radius: 4px;
}

/* --- Structure ----------------------------------------------------------- */
.conteneur {
  width: 100%;
  max-width: var(--largeur);
  margin-inline: auto;
  padding-inline: 22px;
}

.section { padding-block: clamp(56px, 8vw, 100px); }
.section--gris { background: var(--fond); }
.section--nuit { background: var(--nuit); color: #CBD5E1; }
.section--nuit h2, .section--nuit h3 { color: #fff; }

.section__titre { max-width: 720px; margin-bottom: 44px; }
.section__titre p { margin-top: 14px; font-size: 1.09rem; color: var(--gris-600); }
.section--nuit .section__titre p { color: #94A3B8; }

.centre { text-align: center; margin-inline: auto; }

/* --- Lien d'évitement ---------------------------------------------------- */
.skip {
  position: absolute; left: -9999px;
  background: var(--nuit); color: #fff;
  padding: 12px 20px; border-radius: 0 0 var(--rayon-sm) 0; z-index: 100;
}
.skip:focus { left: 0; top: 0; }

/* --- En-tête ------------------------------------------------------------- */
.entete {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--gris-200);
}

.entete__inner {
  display: flex; align-items: center; gap: 28px;
  min-height: 68px;
}

.marque { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.marque:hover { text-decoration: none; }
.marque svg { width: 30px; height: 27px; }
.marque__texte {
  font-size: 1.35rem; font-weight: 800; letter-spacing: -.03em;
  color: var(--nuit);
}
.marque__texte .x {
  background: var(--degrade);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
/* `:not(.btn)` est indispensable : sans lui, cette règle est plus spécifique
   que .btn--degrade et repeint le texte du bouton en gris. */
.nav a:not(.btn) { color: var(--gris-600); font-size: .96rem; font-weight: 500; }
.nav a:not(.btn):hover { color: var(--nuit); text-decoration: none; }

/* --- Boutons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px;
  border: 1px solid transparent; border-radius: var(--rayon-sm);
  font-family: inherit; font-size: 1rem; font-weight: 600; line-height: 1;
  cursor: pointer; text-decoration: none;
  transition: transform .12s ease, box-shadow .18s ease, background-color .18s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primaire {
  background: var(--nuit); color: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .18);
}
.btn--primaire:hover { background: #1E293B; box-shadow: var(--ombre); }

.btn--degrade {
  background: var(--degrade); color: #fff;
  box-shadow: 0 4px 14px -4px rgba(37, 99, 235, .5);
}
.btn--degrade:hover { box-shadow: 0 8px 22px -6px rgba(37, 99, 235, .6); }

.btn--secondaire {
  background: #fff; color: var(--gris-900); border-color: var(--gris-300);
}
.btn--secondaire:hover { background: var(--gris-100); }

.btn--large { padding: 16px 30px; font-size: 1.06rem; }
.btn--bloc { width: 100%; }

/* --- Bandeau d'urgence --------------------------------------------------- */
.bandeau {
  background: var(--nuit); color: #E2E8F0;
  font-size: .93rem; text-align: center;
  padding: 10px 22px;
}
.bandeau strong { color: #fff; }
.bandeau .pastille {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan); margin-right: 8px; vertical-align: middle;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* --- Héros --------------------------------------------------------------- */
.heros {
  position: relative; overflow: hidden;
  padding-block: clamp(52px, 7vw, 92px);
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(34, 211, 238, .16), transparent 62%),
    radial-gradient(760px 400px at 4% 4%, rgba(109, 40, 217, .13), transparent 60%),
    var(--blanc);
}

.heros__grille {
  display: grid; grid-template-columns: 1.12fr .88fr; gap: 56px; align-items: center;
}

.etiquette {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--ambre-clair); color: var(--ambre);
  border: 1px solid #FDE68A;
  padding: 7px 15px; border-radius: 999px;
  font-size: .87rem; font-weight: 600;
  margin-bottom: 22px;
}

.heros h1 { margin-bottom: 20px; }
.heros h1 .accent {
  background: var(--degrade);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.heros__chapo {
  font-size: clamp(1.06rem, 2vw, 1.24rem);
  color: var(--gris-600); max-width: 570px; margin-bottom: 30px;
}

.heros__actions { display: flex; flex-wrap: wrap; gap: 13px; margin-bottom: 20px; }

.heros__preuves {
  display: flex; flex-wrap: wrap; gap: 20px;
  font-size: .9rem; color: var(--gris-500);
}
.heros__preuves span { display: inline-flex; align-items: center; gap: 7px; }

/* --- Compte à rebours ---------------------------------------------------- */
.rebours {
  background: var(--nuit); color: #fff;
  border-radius: var(--rayon); padding: 26px;
  box-shadow: var(--ombre-forte);
}
.rebours__titre {
  font-size: .82rem; text-transform: uppercase; letter-spacing: .09em;
  color: #94A3B8; margin-bottom: 16px;
}
.rebours__grille { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.rebours__case {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: var(--rayon-sm); padding: 13px 6px; text-align: center;
}
.rebours__valeur {
  font-size: 1.75rem; font-weight: 800; line-height: 1;
  font-variant-numeric: tabular-nums;
  background: var(--degrade);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.rebours__unite {
  font-size: .68rem; text-transform: uppercase; letter-spacing: .07em;
  color: #94A3B8; margin-top: 6px;
}
.rebours__note { margin-top: 16px; font-size: .87rem; color: #94A3B8; }
.rebours__note strong { color: #fff; }

/* --- Cartes -------------------------------------------------------------- */
.grille { display: grid; gap: 22px; }
.grille--2 { grid-template-columns: repeat(2, 1fr); }
.grille--3 { grid-template-columns: repeat(3, 1fr); }
.grille--4 { grid-template-columns: repeat(4, 1fr); }

.carte {
  background: #fff; border: 1px solid var(--gris-200);
  border-radius: var(--rayon); padding: 26px;
}
.carte h3 { margin-bottom: 9px; }
.carte p { color: var(--gris-600); font-size: .98rem; }

.carte__icone {
  width: 42px; height: 42px; border-radius: 11px;
  display: grid; place-items: center; margin-bottom: 16px;
  background: linear-gradient(135deg, rgba(109, 40, 217, .12), rgba(34, 211, 238, .14));
  color: var(--bleu);
}
.carte__icone svg { width: 21px; height: 21px; }

/* --- Étapes -------------------------------------------------------------- */
.etape { position: relative; padding-left: 58px; }
.etape__num {
  position: absolute; left: 0; top: 0;
  width: 40px; height: 40px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--degrade); color: #fff;
  font-weight: 800; font-size: 1.05rem;
}
.etape h3 { margin-bottom: 7px; }
.etape p { color: var(--gris-600); font-size: .98rem; }

/* --- Comparatif ---------------------------------------------------------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.compare__col {
  border-radius: var(--rayon); padding: 26px;
  border: 1px solid var(--gris-200); background: #fff;
}
.compare__col--nous {
  border-color: transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    var(--degrade) border-box;
  border: 2px solid transparent;
  box-shadow: var(--ombre);
}
.compare__col h3 { margin-bottom: 16px; font-size: 1.08rem; }
.compare__liste { list-style: none; padding: 0; display: grid; gap: 12px; }
.compare__liste li {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: .97rem; color: var(--gris-700);
}
.compare__liste svg { flex: 0 0 19px; width: 19px; height: 19px; margin-top: 2px; }
.oui { color: var(--vert); }
.non { color: var(--gris-300); }

/* --- Tarifs -------------------------------------------------------------- */
.tarifs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: start; }

.tarif {
  background: #fff; border: 1px solid var(--gris-200);
  border-radius: var(--rayon); padding: 26px 22px;
  display: flex; flex-direction: column; height: 100%;
}
.tarif--phare {
  border: 2px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    var(--degrade) border-box;
  box-shadow: var(--ombre-forte);
  position: relative;
}
.tarif__ruban {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--degrade); color: #fff;
  font-size: .74rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  padding: 5px 14px; border-radius: 999px; white-space: nowrap;
}
.tarif__nom { font-size: 1.05rem; font-weight: 700; color: var(--gris-900); }
.tarif__cible { font-size: .87rem; color: var(--gris-500); margin-top: 3px; }
.tarif__prix { margin: 18px 0 4px; display: flex; align-items: baseline; gap: 5px; }
.tarif__montant { font-size: 2.15rem; font-weight: 800; color: var(--gris-900); letter-spacing: -.03em; }
.tarif__periode { font-size: .92rem; color: var(--gris-500); }
.tarif__inclus { font-size: .93rem; color: var(--gris-600); margin-bottom: 18px; }
.tarif__inclus strong { color: var(--gris-900); }
.tarif ul { list-style: none; padding: 0; display: grid; gap: 9px; margin-bottom: 22px; font-size: .93rem; }
.tarif li { display: flex; gap: 9px; align-items: flex-start; }
.tarif li svg { flex: 0 0 17px; width: 17px; height: 17px; margin-top: 2px; color: var(--vert); }
.tarif .btn { margin-top: auto; }

.tarifs__note {
  margin-top: 26px; font-size: .93rem; color: var(--gris-500);
  text-align: center; max-width: 640px; margin-inline: auto;
}

/* --- FAQ ----------------------------------------------------------------- */
.faq { max-width: 780px; margin-inline: auto; display: grid; gap: 12px; }
.faq details {
  background: #fff; border: 1px solid var(--gris-200);
  border-radius: var(--rayon-sm); overflow: hidden;
}
.faq summary {
  cursor: pointer; padding: 17px 20px; list-style: none;
  font-weight: 600; color: var(--gris-900); font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-size: 1.4rem; font-weight: 400; color: var(--gris-500);
  line-height: 1; flex-shrink: 0;
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { border-bottom: 1px solid var(--gris-200); }
.faq__reponse { padding: 17px 20px; color: var(--gris-600); font-size: .99rem; }
.faq__reponse p + p { margin-top: 12px; }

/* --- Formulaire ---------------------------------------------------------- */
.form-carte {
  background: #fff; border-radius: var(--rayon); padding: 32px;
  box-shadow: var(--ombre-forte); max-width: 520px; margin-inline: auto;
}
.champ { margin-bottom: 16px; }
.champ label {
  display: block; font-size: .9rem; font-weight: 600;
  color: var(--gris-900); margin-bottom: 6px;
}
.champ input, .champ select {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--gris-300); border-radius: var(--rayon-sm);
  font-family: inherit; font-size: 1rem; color: var(--gris-900);
  background: #fff;
}
.champ input:focus, .champ select:focus { border-color: var(--bleu); outline-offset: 0; }

.consentement {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: .86rem; color: var(--gris-500); margin-bottom: 20px;
}
.consentement input { margin-top: 3px; flex-shrink: 0; width: 16px; height: 16px; }

.form-message {
  padding: 13px 16px; border-radius: var(--rayon-sm);
  font-size: .95rem; margin-top: 16px;
}
.form-message--ok { background: var(--vert-clair); color: var(--vert); }
.form-message--ko { background: #FEF2F2; color: var(--rouge); }

/* Piège à robots : invisible pour l'humain, rempli par les automates. */
.pot-de-miel {
  position: absolute; left: -9999px;
  width: 1px; height: 1px; overflow: hidden;
}

/* --- Bandeau d'appel final ----------------------------------------------- */
.appel {
  background: var(--nuit);
  border-radius: var(--rayon);
  padding: clamp(34px, 5vw, 56px);
  text-align: center;
  background-image:
    radial-gradient(600px 260px at 82% 0%, rgba(34, 211, 238, .18), transparent 60%),
    radial-gradient(520px 250px at 12% 100%, rgba(109, 40, 217, .22), transparent 60%);
}
.appel h2 { color: #fff; margin-bottom: 14px; }
.appel p { color: #94A3B8; max-width: 560px; margin: 0 auto 26px; }

/* --- Pied de page -------------------------------------------------------- */
.pied {
  background: var(--fond); border-top: 1px solid var(--gris-200);
  padding-block: 48px 32px; font-size: .93rem;
}
.pied__grille {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px;
  margin-bottom: 34px;
}
.pied h4 {
  font-size: .82rem; text-transform: uppercase; letter-spacing: .07em;
  color: var(--gris-500); margin-bottom: 13px; font-weight: 700;
}
.pied ul { list-style: none; padding: 0; display: grid; gap: 9px; }
.pied a { color: var(--gris-600); }
.pied a:hover { color: var(--nuit); }
.pied__bas {
  border-top: 1px solid var(--gris-200); padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--gris-500); font-size: .88rem;
}

/* --- Contenu rédactionnel ------------------------------------------------ */
.article { max-width: 760px; margin-inline: auto; }
.article h2 { margin: 40px 0 16px; }
.article h3 { margin: 28px 0 10px; }
.article p { margin-bottom: 16px; }
.article ul, .article ol { margin: 0 0 18px 22px; }
.article li { margin-bottom: 8px; }
.article table {
  width: 100%; border-collapse: collapse; margin-bottom: 22px; font-size: .95rem;
}
.article th, .article td {
  border: 1px solid var(--gris-200); padding: 11px 13px; text-align: left;
}
.article th { background: var(--fond); font-weight: 700; color: var(--gris-900); }
.article .encadre {
  background: var(--fond); border-left: 3px solid var(--bleu);
  padding: 18px 20px; border-radius: 0 var(--rayon-sm) var(--rayon-sm) 0;
  margin-bottom: 22px;
}
.article .encadre p:last-child { margin-bottom: 0; }

.fil { font-size: .87rem; color: var(--gris-500); margin-bottom: 20px; }
.fil a { color: var(--gris-500); }

/* --- Adaptation mobile --------------------------------------------------- */
@media (max-width: 980px) {
  .heros__grille { grid-template-columns: 1fr; gap: 38px; }
  .grille--4 { grid-template-columns: repeat(2, 1fr); }
  .tarifs { grid-template-columns: repeat(2, 1fr); }
  .pied__grille { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  /* Les liens passent au pied de page, mais l'appel à l'action reste visible. */
  .nav a:not(.btn) { display: none; }
  .nav .btn { padding: 10px 16px; font-size: .92rem; }
  .bandeau { font-size: .85rem; line-height: 1.45; }
  .grille--2, .grille--3, .grille--4 { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .tarifs { grid-template-columns: 1fr; }
  .pied__grille { grid-template-columns: 1fr; gap: 26px; }
  .heros__actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}


/* --- Sommaire de la FAQ --------------------------------------------------- */
.faq-sommaire {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 12px;
  max-width: 900px;
  margin-inline: auto;
}
.faq-sommaire a {
  display: flex; flex-direction: column; gap: 3px;
  padding: 15px 18px;
  background: #fff; border: 1px solid var(--gris-200);
  border-radius: var(--rayon-sm);
  text-decoration: none;
  transition: border-color .15s ease, transform .12s ease;
}
.faq-sommaire a:hover {
  text-decoration: none;
  border-color: var(--bleu);
  transform: translateY(-1px);
}
.faq-sommaire__titre { font-weight: 600; color: var(--gris-900); font-size: .99rem; }
.faq-sommaire__compte { font-size: .84rem; color: var(--gris-500); }