/* ==============================================================================
   Landing Qubly — styles. Zéro dépendance : polices système, pas d'assets.
   Palette : fond sombre zinc, accent indigo→cyan, texte haute lisibilité.
   ============================================================================== */

:root {
  --bg: #0a0b0e;
  --bg-alt: #0f1116;
  --card: #14161c;
  --border: #23262e;
  --text: #eceef2;
  --muted: #9aa1ad;
  --accent: #4f46e5;
  --accent-2: #22d3ee;
  --grad: linear-gradient(100deg, var(--accent-2), var(--accent));
  --radius: 14px;
  --maxw: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 760px; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85em;
  background: #1c1f27;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 1px 6px;
  color: #c7d2fe;
}

/* Icônes SVG (sprite en tête de page, traits fins comme le produit) */
.icon {
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -0.12em;
  flex: none;
}

/* ------------------------------- Boutons --------------------------------- */
.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 12px 22px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}
.btn-primary:hover { box-shadow: 0 10px 32px rgba(79, 70, 229, 0.5); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: #3a3f4b; background: #171a21; }

.btn-light { background: #fff; color: #111; }
.btn-light:hover { background: #e8e9ec; }

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }

/* ------------------------------ Navigation -------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 11, 14, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand-mark {
  display: block;
  width: 30px; height: 30px;
}
.brand-name { font-weight: 700; font-size: 1.05rem; letter-spacing: 0.2px; }

.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
.nav-links a:hover { color: var(--text); }

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-inner > .btn { margin-left: auto; }
}

/* --------------------------------- Hero ----------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 64px;
  background:
    radial-gradient(900px 500px at 75% -10%, rgba(79, 70, 229, 0.22), transparent 60%),
    radial-gradient(700px 400px at 10% 0%, rgba(34, 211, 238, 0.10), transparent 55%);
}

/* Orbes lumineuses flottantes — l'effet « vivant » du hero, sur GPU uniquement. */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
  will-change: transform;
}
.orb-a {
  width: 480px; height: 480px;
  top: -180px; right: -80px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.32), transparent 70%);
  animation: orb-a 22s ease-in-out infinite;
}
.orb-b {
  width: 380px; height: 380px;
  bottom: -160px; left: -120px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.20), transparent 70%);
  animation: orb-b 26s ease-in-out infinite;
}
@keyframes orb-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-60px, 40px) scale(1.12); }
}
@keyframes orb-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(50px, -30px) scale(0.92); }
}

.hero-grid {
  position: relative; /* au-dessus des orbes */
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #c7d2fe;
  border: 1px solid rgba(124, 108, 243, 0.4);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 18px;
  background: rgba(79, 70, 229, 0.12);
}

.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
}
/* Dégradé du mot clé : il ondule lentement (background-position animée). */
.grad {
  background: linear-gradient(100deg, var(--accent-2), var(--accent), var(--accent-2));
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: grad-flow 6s linear infinite;
}
@keyframes grad-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

.lead { color: var(--muted); font-size: 1.08rem; margin-top: 20px; max-width: 46ch; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-note { color: #6f7683; font-size: 0.82rem; margin-top: 14px; }

/* Maquette navigateur + widget (décorative) : entrée flottante + chat animé. */
.hero-visual { display: flex; justify-content: center; }

.mock-window {
  width: 100%;
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
  animation: mock-float 7s ease-in-out infinite;
}
@keyframes mock-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.mock-bar span { width: 10px; height: 10px; border-radius: 50%; background: #2c3039; }
.mock-bar span:first-child { background: #3f4450; }
.mock-bar em {
  margin-left: 12px;
  font-style: normal;
  font-size: 0.72rem;
  color: #6f7683;
  background: #1a1d24;
  border-radius: 6px;
  padding: 2px 12px;
}

.mock-shot {
  display: block;
  width: 100%;
  height: auto;
}

/* Bandeau confiance */
.trust {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 64px;
}
.trust div {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(20, 22, 28, 0.6);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.trust strong { font-size: 0.88rem; display: inline-flex; align-items: center; gap: 7px; }
.trust strong .icon { color: var(--accent-2); font-size: 0.95rem; }
.trust span { font-size: 0.78rem; color: var(--muted); }

@media (max-width: 900px) { .trust { grid-template-columns: repeat(2, 1fr); } }

/* ------------------------------- Sections --------------------------------- */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  letter-spacing: -0.02em;
  text-align: center;
  font-weight: 750;
}
.section-sub { color: var(--muted); text-align: center; margin: 12px auto 52px; max-width: 52ch; }

/* Fonctionnalités */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 900px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .feature-grid { grid-template-columns: 1fr; } }

.feature {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 24px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.feature:hover { border-color: #363b47; transform: translateY(-2px); }
.feature-icon {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.22), rgba(34, 211, 238, 0.12));
  border: 1px solid rgba(124, 108, 243, 0.35);
  color: #c7d2fe;
  font-size: 20px;
  margin-bottom: 14px;
}
.feature h3 { font-size: 1.02rem; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 0.9rem; }

/* Étapes */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  counter-reset: step;
}
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

.steps li { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 12px;
  background: var(--grad);
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
}
.steps h3 { font-size: 1rem; margin-bottom: 6px; }
.steps p { color: var(--muted); font-size: 0.9rem; }

/* Tarifs */
.pricing {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}
@media (max-width: 1000px) { .pricing { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .pricing { grid-template-columns: 1fr; } }

.plan {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
}
.plan-highlight {
  border-color: rgba(124, 108, 243, 0.55);
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.10), rgba(20, 22, 28, 1) 45%);
  position: relative;
}
.plan-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--grad);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.plan h3 { font-size: 1.05rem; }
.plan-desc { color: var(--muted); font-size: 0.8rem; margin-top: 4px; min-height: 2.4em; }
.plan-price { font-size: 2rem; font-weight: 800; margin: 10px 0 16px; letter-spacing: -0.02em; }
.plan-price span { font-size: 0.85rem; font-weight: 400; color: var(--muted); }

.plan ul { list-style: none; margin-bottom: 22px; display: grid; gap: 8px; }
.plan li { font-size: 0.86rem; color: #c3c8d1; padding-left: 22px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: var(--accent-2); font-weight: 700; }

.plan .btn { margin-top: auto; text-align: center; }

/* FAQ */
details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  margin-bottom: 12px;
  overflow: hidden;
}
summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  list-style: none;
  position: relative;
  padding-right: 44px;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-2);
  font-size: 1.2rem;
  font-weight: 400;
}
details[open] summary::after { content: "–"; }
details p { padding: 0 20px 18px; color: var(--muted); font-size: 0.9rem; }

/* CTA final */
.cta {
  padding: 96px 0;
  text-align: center;
  background:
    radial-gradient(700px 380px at 50% 120%, rgba(79, 70, 229, 0.28), transparent 65%);
}
.cta h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; }
.cta p { color: var(--muted); margin: 14px 0 30px; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 48px 0 40px; background: var(--bg-alt); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-start; }
.footer-tag { color: var(--muted); font-size: 0.82rem; margin-top: 12px; }
.footer-links { display: flex; gap: 20px; margin-left: auto; flex-direction: column; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.88rem; }
.footer-links a:hover { color: var(--text); }
.footer-legal { width: 100%; color: #6f7683; font-size: 0.78rem; border-top: 1px solid var(--border); padding-top: 24px; }

/* --------------------------- Apparition au scroll -------------------------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.on { opacity: 1; transform: none; }
/* Décalage en cascade dans les grilles : chaque carte suit la précédente. */
.feature-grid .reveal:nth-child(2), .pricing .reveal:nth-child(2), .steps .reveal:nth-child(2) { transition-delay: 0.08s; }
.feature-grid .reveal:nth-child(3), .pricing .reveal:nth-child(3), .steps .reveal:nth-child(3) { transition-delay: 0.16s; }
.feature-grid .reveal:nth-child(4), .pricing .reveal:nth-child(4) { transition-delay: 0.24s; }
.feature-grid .reveal:nth-child(5) { transition-delay: 0.32s; }
.feature-grid .reveal:nth-child(6) { transition-delay: 0.4s; }

/* Accessibilité : pas d'animation si l'utilisateur le demande. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .orb, .mock-window, .grad { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ------------------------------- Widget Qubly -------------------------------
   L'assistant de la landing EST notre widget (embed data-theme="dark"). On
   rebranche ses variables sur les tokens exacts de la page pour qu'il ait
   l'air né ici, pas posé dessus. Sélecteurs préfixés `body #rag-widget-host`
   pour battre la feuille injectée par le widget au runtime. */
body #rag-widget-host[data-theme="dark"] {
  --ragw-panel: var(--card);
  --ragw-msgs: var(--bg-alt);
  --ragw-bubble: var(--card);
  --ragw-border: var(--border);
  --ragw-border-2: #3a3f4b;
  --ragw-text: var(--text);
  --ragw-text-2: #c3c8d1;
  --ragw-text-3: var(--muted);
  --ragw-text-4: #6f7683;
  --ragw-chip: #1a1d24;
  --ragw-row-alt: #171a21;
  --ragw-code-bg: #1c1f27;
  --ragw-code-text: #c7d2fe;
  --ragw-src-open-bg: rgba(79, 70, 229, 0.16);
  --ragw-src-open-border: rgba(124, 108, 243, 0.55);
  --ragw-src-open-text: #c7d2fe;
}
/* Accent : le dégradé signature sur FAB, entête, bulles utilisateur, envoi. */
body #rag-widget-host[data-theme="dark"] .ragw-fab,
body #rag-widget-host[data-theme="dark"] .ragw-header,
body #rag-widget-host[data-theme="dark"] .ragw-msg.user,
body #rag-widget-host[data-theme="dark"] .ragw-send {
  background: var(--grad);
}
body #rag-widget-host[data-theme="dark"] .ragw-fab {
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}
/* Rayon de la carte : le même que les blocs de la page. */
body #rag-widget-host[data-theme="dark"] .ragw-panel {
  border-radius: var(--radius);
}