/* ============================================================
   Eclusia — feuille de style du site marketing
   Palette : accent #5D3FD3 · encre #111827 · fond blanc
   Aucune dépendance externe critique (polices système en repli)
   ============================================================ */

:root {
  --accent: #5D3FD3;
  --accent-hover: #4c32b3;
  --accent-soft: #efeafd;
  --grad-to: #9333ea;
  --dark: #111827;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg-soft: #f7f6fc;
  --ok: #16a34a;
  --radius-card: 1.5rem;
  --radius-big: 2.5rem;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 6rem; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

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

a { color: inherit; text-decoration: none; }

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

.container { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }

/* ---------- Fond décoratif ---------- */
.bg-glow {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}
.bg-glow span {
  position: absolute;
  border-radius: 50%;
  background: var(--accent);
  filter: blur(160px);
  opacity: 0.07;
}
.bg-glow span:nth-child(1) { top: -10%; left: -10%; width: 55vw; height: 45rem; }
.bg-glow span:nth-child(2) { top: 45%; right: -15%; width: 55vw; height: 50rem; opacity: 0.06; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: min(100% - 1rem, 80rem);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(229, 231, 235, 0.6);
  border-radius: 1.25rem;
  box-shadow: 0 4px 24px rgba(17, 24, 39, 0.06);
  transition: transform 0.3s ease;
}
.site-header.is-hidden { transform: translateX(-50%) translateY(-150%); }

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--dark);
}
.brand svg { color: var(--accent); }

.main-nav { display: flex; align-items: center; gap: 2rem; }
.main-nav a {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--muted);
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--accent); }

.header-actions { display: flex; align-items: center; gap: 1rem; }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.lang-switch-sep {
  color: var(--muted);
  opacity: 0.45;
  user-select: none;
}
.lang-switch-btn {
  padding: 0.15rem 0.35rem;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 0.35rem;
  transition: color 0.2s, background 0.2s;
}
.lang-switch-btn:hover { color: var(--accent); }
.lang-switch-btn.is-active { color: var(--accent); }
.lang-switch-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.mobile-menu .lang-switch { margin-bottom: 0.5rem; }

.link-login {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--muted);
  transition: color 0.2s;
}
.link-login:hover { color: var(--accent); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.97rem;
  border-radius: 999px;
  padding: 0.8rem 1.6rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 18px rgba(93, 63, 211, 0.35);
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(93, 63, 211, 0.45);
}
.btn-dark { background: var(--dark); color: #fff; box-shadow: 0 4px 14px rgba(17, 24, 39, 0.25); }
.btn-dark:hover { background: #1f2937; transform: translateY(-2px); }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 1rem 2.1rem; font-size: 1.05rem; }
.btn svg { flex: none; }

/* ---------- Menu mobile ---------- */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 0.5rem;
  color: var(--muted);
  cursor: pointer;
}
.mobile-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  box-shadow: 0 16px 40px rgba(17, 24, 39, 0.12);
  padding: 1.5rem;
  flex-direction: column;
  gap: 1rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-weight: 700; color: var(--ink); font-size: 1.05rem; }
.mobile-menu .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero { padding: 10.5rem 0 5rem; position: relative; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-inner > *, .security-inner > * { min-width: 0; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}
.hero-badge .dot {
  width: 0.5rem; height: 0.5rem;
  border-radius: 50%;
  background: var(--ok);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.12;
  color: var(--dark);
}
.hero h1 .grad {
  background: linear-gradient(90deg, var(--accent), var(--grad-to));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 1.5rem 0 2.2rem;
  max-width: 34rem;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero-note { margin-top: 1rem; font-size: 0.88rem; color: var(--muted); }
.hero-note strong { color: var(--ink); }

/* ---------- Démo anonymisation ---------- */
.demo-card {
  background: var(--dark);
  border-radius: var(--radius-card);
  box-shadow: 0 30px 60px rgba(17, 24, 39, 0.25);
  overflow: hidden;
  border: 1px solid rgba(93, 63, 211, 0.35);
}
.demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.demo-title { display: flex; align-items: center; gap: 0.5rem; color: #fff; font-weight: 700; font-size: 0.9rem; }
.demo-title svg { color: var(--accent); }
.demo-tabs { display: flex; gap: 0.4rem; }
.demo-tab {
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 700;
  color: #9ca3af;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}
.demo-tab[aria-selected="true"] { color: #fff; background: var(--accent); }
.demo-body { padding: 1.4rem 1.5rem 1.1rem; min-height: 11.5rem; }
.demo-text { color: #d1d5db; font-size: 0.95rem; line-height: 1.9; overflow-wrap: anywhere; }
.demo-text mark {
  background: rgba(239, 68, 68, 0.18);
  color: #fca5a5;
  border-bottom: 2px solid rgba(239, 68, 68, 0.6);
  border-radius: 4px;
  padding: 0.05rem 0.3rem;
}
.demo-text .tag {
  background: rgba(93, 63, 211, 0.25);
  color: #c4b5fd;
  border: 1px solid rgba(93, 63, 211, 0.55);
  border-radius: 6px;
  padding: 0.05rem 0.4rem;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: 0.85em;
  white-space: nowrap;
}
.demo-foot {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #9ca3af;
  font-size: 0.82rem;
  font-weight: 600;
}
.demo-foot .pulse {
  width: 0.55rem; height: 0.55rem;
  border-radius: 50%;
  background: var(--ok);
  flex: none;
  animation: blink 2s ease-in-out infinite;
}

/* ---------- Bandeau compatibilité ---------- */
.compat { padding: 2.5rem 0 1rem; text-align: center; }
.compat p {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.2rem;
}
.compat-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.7rem; }
.compat-list li {
  list-style: none;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--ink);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 1.1rem;
}

/* ---------- Sections génériques ---------- */
.section { padding: 5.5rem 0; }
.section-head { text-align: center; max-width: 44rem; margin: 0 auto 3.5rem; }
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.9rem;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--dark);
  line-height: 1.2;
}
.section-head p { margin-top: 1.1rem; font-size: 1.08rem; color: var(--muted); }

/* ---------- Teintes d'accent (cartes, icônes, badges) ---------- */
.tint-violet { --tint: #5D3FD3; --tint-bg: #efeafd; }
.tint-blue   { --tint: #2563eb; --tint-bg: #e7effe; }
.tint-green  { --tint: #059669; --tint-bg: #e3f6ef; }
.tint-amber  { --tint: #d97706; --tint-bg: #fdf1df; }
.tint-rose   { --tint: #e11d48; --tint-bg: #fde8ed; }
.tint-cyan   { --tint: #0891b2; --tint-bg: #e0f4f9; }

/* ---------- Comment ça marche ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}
.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 1.8rem 1.5rem;
  position: relative;
  transition: all 0.25s ease;
}
.step:hover { border-color: var(--tint, var(--accent)); box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08); transform: translateY(-4px); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem; height: 2.4rem;
  border-radius: 0.8rem;
  background: var(--tint-bg, var(--accent-soft));
  color: var(--tint, var(--accent));
  font-weight: 800;
  margin-bottom: 1.1rem;
}
.step h3 { font-size: 1.08rem; font-weight: 700; color: var(--dark); margin-bottom: 0.5rem; }
.step p { font-size: 0.93rem; color: var(--muted); }

/* ---------- Fonctionnalités ---------- */
.features { background: var(--bg-soft); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.feature {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 1.9rem 1.6rem;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.feature::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--tint, var(--accent)), var(--tint-bg, var(--accent-soft)));
}
.feature:hover { border-color: var(--tint, var(--accent)); box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08); transform: translateY(-4px); }
.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.8rem; height: 2.8rem;
  border-radius: 0.9rem;
  background: var(--tint-bg, var(--accent-soft));
  color: var(--tint, var(--accent));
  margin-bottom: 1.2rem;
}
.feature h3 { font-size: 1.1rem; font-weight: 700; color: var(--dark); margin-bottom: 0.55rem; }
.feature p { font-size: 0.93rem; color: var(--muted); }

/* Liste numérotée compacte dans une carte */
.mini-list { margin-top: 0.95rem; display: flex; flex-direction: column; gap: 0.5rem; }
.mini-list li { list-style: none; display: flex; align-items: baseline; gap: 0.6rem; font-size: 0.88rem; color: var(--ink); font-weight: 500; }
.mini-list .k {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.35rem; height: 1.35rem;
  border-radius: 0.45rem;
  background: var(--tint-bg, var(--accent-soft));
  color: var(--tint, var(--accent));
  font-size: 0.75rem;
  font-weight: 800;
  flex: none;
  transform: translateY(0.15rem);
}
.mini-list .cat { color: var(--muted); font-weight: 400; }

/* Rangée de badges colorés dans une carte */
.chip-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1rem; }
.chip {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: var(--tint-bg, var(--accent-soft));
  color: var(--tint, var(--accent));
}

.feature-extra {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
}
.feature-extra li {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.5rem 1.05rem;
}
.feature-extra svg { color: var(--ok); flex: none; }

/* ---------- Sécurité ---------- */
.security-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.security-inner .section-head { text-align: left; margin: 0 0 1.8rem; }
.security-list { display: flex; flex-direction: column; gap: 1.2rem; }
.security-list li { list-style: none; display: flex; gap: 0.9rem; }
.security-list svg { color: var(--accent); flex: none; margin-top: 0.2rem; }
.security-list strong { display: block; color: var(--dark); font-size: 1rem; }
.security-list span { font-size: 0.93rem; color: var(--muted); }

.local-card {
  background: var(--dark);
  border-radius: var(--radius-big);
  padding: 2.6rem 2.4rem;
  color: #fff;
  border: 1px solid rgba(93, 63, 211, 0.35);
  box-shadow: 0 30px 60px rgba(17, 24, 39, 0.25);
}
.local-card h3 { font-size: 1.35rem; font-weight: 800; margin-bottom: 1.6rem; display: flex; align-items: center; gap: 0.7rem; }
.local-card h3 svg { color: var(--accent); }
.local-flow { display: flex; flex-direction: column; gap: 0.9rem; }
.local-flow .node {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.9rem;
  padding: 0.9rem 1.1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: #e5e7eb;
}
.local-flow .node svg { color: #a78bfa; flex: none; }
.local-flow .node.blocked { border-style: dashed; color: #9ca3af; }
.local-flow .node.blocked svg { color: #f87171; }
.local-flow .arrow { text-align: center; color: #6b7280; line-height: 1; }

/* ---------- Pour qui ---------- */
.who-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.who-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 1.9rem 1.7rem;
  transition: all 0.25s ease;
}
.who-card:hover { border-color: rgba(93, 63, 211, 0.4); box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08); transform: translateY(-4px); }
.who-card h3 { display: flex; align-items: center; gap: 0.7rem; font-size: 1.12rem; font-weight: 700; color: var(--dark); margin-bottom: 1rem; }
.who-card h3 svg { color: var(--accent); flex: none; }
.who-card dt { font-size: 0.78rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.3rem; }
.who-card dd { font-size: 0.93rem; color: var(--muted); margin: 0 0 1rem; }
.who-card dd:last-child { margin-bottom: 0; }

/* ---------- Offres ---------- */

/* ---------- Téléchargement ---------- */
.download-card {
  background: linear-gradient(135deg, var(--accent), var(--grad-to));
  border-radius: var(--radius-big);
  padding: 3.5rem 2.5rem;
  text-align: center;
  color: #fff;
  box-shadow: 0 30px 60px rgba(93, 63, 211, 0.35);
}
.download-card h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); font-weight: 800; letter-spacing: -0.02em; }
.download-card > p { margin: 1rem auto 2.2rem; max-width: 36rem; color: rgba(255, 255, 255, 0.85); font-size: 1.05rem; }
.download-steps {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.4rem;
}
.download-steps li {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
}
.download-steps .n {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem; height: 1.4rem;
  border-radius: 50%;
  background: #fff;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  flex: none;
}
.download-ctas { display: flex; justify-content: center; flex-wrap: wrap; gap: 1rem; }
.download-card .btn-white { background: #fff; color: var(--accent); box-shadow: 0 6px 20px rgba(17, 24, 39, 0.2); }
.download-card .btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(17, 24, 39, 0.3); }
.download-card .btn-outline { border-color: rgba(255, 255, 255, 0.6); color: #fff; background: transparent; }
.download-card .btn-outline:hover { background: rgba(255, 255, 255, 0.12); }
.download-note { margin-top: 1.4rem; font-size: 0.85rem; color: rgba(255, 255, 255, 0.75); }

/* ---------- FAQ (page offres) ---------- */
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; max-width: 56rem; margin: 0 auto; }
.faq-item { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-card); padding: 1.6rem 1.5rem; }
.faq-item h3 { font-size: 1rem; font-weight: 700; color: var(--dark); margin-bottom: 0.5rem; }
.faq-item p { font-size: 0.92rem; color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: #fff; padding: 4rem 0 0; margin-top: 3rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; }
.footer-brand p { color: #9ca3af; max-width: 24rem; margin-top: 1.2rem; font-size: 0.95rem; }
.site-footer h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 1.1rem; }
.site-footer ul { display: flex; flex-direction: column; gap: 0.7rem; }
.site-footer li {
  list-style: none;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 400;
  color: #9ca3af;
}
.site-footer li a {
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  transition: color 0.2s;
}
.site-footer li a:hover { color: #fff; }
.footer-bottom {
  margin-top: 3.5rem;
  padding: 1.8rem 0;
  border-top: 1px solid #1f2937;
  font-size: 0.85rem;
  color: #6b7280;
}

/* ---------- Animations d'apparition ----------
   L'état masqué n'est appliqué que si le JS est chargé (classe .js sur <html>),
   pour que le contenu reste visible sans JavaScript. */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 60rem) {
  .main-nav, .link-login, .header-actions > .lang-switch { display: none; }
  .mobile-toggle { display: block; }
  .hero { padding-top: 8.5rem; }
  .hero-inner, .security-inner { grid-template-columns: 1fr; gap: 3rem; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2.2rem; }
}

@media (max-width: 40rem) {
  .steps, .feature-grid, .who-grid, .faq-grid { grid-template-columns: 1fr; }
  .header-cta { display: none; }
  .hero-ctas .btn { width: 100%; }
  .section { padding: 4rem 0; }
}