/* XQV9 — landing V1. Palette gravée verbatim par le brief design JPB (02/09/2026, brief §3) :
   "Base recommandée : Background principal #07090D ; Background secondaire #0D1117 ;
   Cards #12171F ; Argent clair #E8EBEF ; Acier #8B949E ; Bleu XQV9 principal ~#4DA3FF ;
   Bleu lumineux ponctuel ~#70C4FF ; Texte principal #F4F6F8 ; Texte secondaire #8D98A7."
   Direction : "radar + cockpit + système de protection + surveillance du risque" (brief §2).
   "Le bleu ne doit pas envahir le site. Il sert principalement à montrer : état actif ;
   protection ; CTA ; données importantes ; progression ; vigilance." (brief §3)
   Convention de ce fichier : blocs HUD compacts (plusieurs déclarations courtes par ligne),
   volontairement distincte de la mise en forme "une propriété par ligne" du patron partagé. */

:root {
  color-scheme: dark;
  --xqv9-bg: #07090d; --xqv9-bg-secondary: #0d1117; --xqv9-card: #12171f;
  --xqv9-silver: #e8ebef; --xqv9-steel: #8b949e;
  --xqv9-blue: #4da3ff; --xqv9-blue-bright: #70c4ff;
  --xqv9-text: #f4f6f8; --xqv9-text-secondary: #8d98a7;
  --xqv9-border: rgba(232, 235, 239, 0.09); --xqv9-border-blue: rgba(77, 163, 255, 0.35);
  --container-w: 1160px; --radius-md: 12px; --radius-pill: 999px;
  --gap-2xs: 0.4rem; --gap-xs: 0.75rem; --gap-sm: 1.25rem;
  --gap-md: 2rem; --gap-lg: 3rem; --gap-xl: 5rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; background: var(--xqv9-bg); color: var(--xqv9-text); line-height: 1.6; -webkit-font-smoothing: antialiased; font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif; }
img { max-width: 100%; display: block; }
a { color: inherit; }
.container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 var(--gap-sm); }

/* Trame HUD très fine — "beaucoup d'espace ; éléments graphiques fins" (brief §2). */
.hud-grid {
  position: fixed; inset: 0; z-index: -1; opacity: 0.45;
  background-image:
    linear-gradient(var(--xqv9-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--xqv9-border) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, var(--xqv9-bg) 35%, transparent 85%);
}

/* ---------- En-tête ---------- */

.xqv9-topbar { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(10px); background: rgba(7, 9, 13, 0.78); border-bottom: 1px solid var(--xqv9-border); }
.xqv9-topbar .container { display: flex; align-items: center; justify-content: space-between; gap: var(--gap-sm); height: 72px; }
.brand-lockup { display: flex; align-items: center; flex: none; text-decoration: none; }
.brand-emblem { height: 40px; width: auto; border-radius: 6px; }
.nav-primary { display: none; gap: var(--gap-md); font-size: 0.85rem; color: var(--xqv9-text-secondary); }
.nav-primary a { text-decoration: none; transition: color 0.15s ease; }
.nav-primary a:hover { color: var(--xqv9-silver); }

@media (min-width: 860px) {
  .nav-primary { display: flex; }
}

/* ---------- CTA ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.85rem 1.5rem; border-radius: 8px; border: 1px solid transparent;
  font-weight: 600; font-size: 0.9rem; letter-spacing: 0.02em; text-transform: uppercase;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-cta { background: var(--xqv9-blue); color: var(--xqv9-bg); }
.btn-cta:hover { background: var(--xqv9-blue-bright); }
.btn-outline { background: transparent; border-color: var(--xqv9-border); color: var(--xqv9-text); }
.btn-outline:hover { border-color: var(--xqv9-border-blue); color: var(--xqv9-blue-bright); }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.78rem; }

/* ---------- Hero cockpit (brief §5 message + §6 visuel) ---------- */

.hero-cockpit { padding: var(--gap-xl) 0 var(--gap-lg); border-top: none; }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: var(--gap-lg); align-items: center; }

@media (min-width: 860px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; }
}

.hero-kicker { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.35rem 0.8rem; border-radius: var(--radius-pill); border: 1px solid var(--xqv9-border-blue); color: var(--xqv9-blue-bright); font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: var(--gap-sm); }
.hero-kicker-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--xqv9-blue-bright); box-shadow: 0 0 8px var(--xqv9-blue-bright); }
.hero-headline { font-size: clamp(1.9rem, 3.6vw, 2.9rem); line-height: 1.2; letter-spacing: -0.01em; font-weight: 650; color: var(--xqv9-silver); margin: 0 0 var(--gap-sm); }
.hero-lead { color: var(--xqv9-text-secondary); font-size: clamp(1rem, 1.6vw, 1.1rem); max-width: 560px; margin: 0 0 var(--gap-md); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--gap-xs); margin-bottom: var(--gap-sm); }
.hero-meta { color: var(--xqv9-text-secondary); font-size: 0.82rem; margin: 0; }

/* ---------- Panneau cockpit (brief §6) ---------- */

.cockpit-panel { position: relative; overflow: hidden; padding: var(--gap-md); border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: linear-gradient(180deg, var(--xqv9-bg-secondary), var(--xqv9-card)); }

.radar-sweep {
  position: absolute; top: -140px; right: -140px; width: 280px; height: 280px; border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(77, 163, 255, 0.16) 40deg, transparent 90deg);
  animation: radar-rotate 6s linear infinite; pointer-events: none;
}

@keyframes radar-rotate {
  to { transform: rotate(360deg); }
}

.cockpit-panel-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: var(--gap-xs); margin-bottom: var(--gap-xs); border-bottom: 1px solid var(--xqv9-border); }
.cockpit-panel-label { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--xqv9-text-secondary); }
.cockpit-state { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.2rem 0.6rem; border-radius: var(--radius-pill); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.cockpit-state-safe { color: var(--xqv9-blue-bright); background: rgba(77, 163, 255, 0.12); border: 1px solid var(--xqv9-border-blue); }
.cockpit-state-watch { color: var(--xqv9-silver); background: rgba(232, 235, 239, 0.08); border: 1px solid var(--xqv9-border); }
.cockpit-readouts { margin: 0; }
.cockpit-row { display: flex; align-items: baseline; justify-content: space-between; padding: 0.55rem 0; border-bottom: 1px solid var(--xqv9-border); font-size: 0.88rem; }
.cockpit-row:last-child { border-bottom: none; }
.cockpit-row dt { color: var(--xqv9-text-secondary); }
.cockpit-row dd { margin: 0; color: var(--xqv9-silver); font-weight: 600; font-variant-numeric: tabular-nums; }
.cockpit-caption { margin: var(--gap-xs) 0 0; font-size: 0.72rem; color: var(--xqv9-text-secondary); opacity: 0.85; }

/* ---------- Trame des sections ---------- */

section { padding: var(--gap-lg) 0; border-top: 1px solid var(--xqv9-border); }
.section-lead { max-width: 640px; margin: 0 auto var(--gap-md); text-align: center; }
.section-lead h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 650; color: var(--xqv9-silver); margin: 0 0 var(--gap-2xs); }
.section-lead p { color: var(--xqv9-text-secondary); margin: 0; }

/* ---------- Le problème — alertes système (brief §7 section 02) ---------- */

.alert-grid { display: grid; grid-template-columns: 1fr; gap: var(--gap-sm); }

@media (min-width: 760px) {
  .alert-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1180px) {
  .alert-grid { grid-template-columns: repeat(4, 1fr); }
}

.alert-card { padding: var(--gap-sm); border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: var(--xqv9-card); }
.alert-icon { display: inline-block; margin-right: 0.4rem; color: var(--xqv9-blue-bright); font-size: 0.9rem; }
.alert-strip { display: inline-block; color: var(--xqv9-text-secondary); font-size: 0.72rem; letter-spacing: 0.02em; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }
.alert-card h3 { margin: var(--gap-xs) 0 0.4rem; font-size: 1rem; color: var(--xqv9-silver); }
.alert-card p { margin: 0; font-size: 0.85rem; color: var(--xqv9-text-secondary); }

/* ---------- Comment XQV9 fonctionne (brief §8) ---------- */

.flow-grid { display: grid; grid-template-columns: 1fr; gap: var(--gap-sm); }

@media (min-width: 760px) {
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1180px) {
  .flow-grid { grid-template-columns: repeat(4, 1fr); }
}

.flow-step { padding: var(--gap-sm); border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: var(--xqv9-bg-secondary); }
.flow-number { display: block; margin-bottom: var(--gap-xs); color: var(--xqv9-blue); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; }
.flow-step h3 { margin: 0 0 0.4rem; font-size: 0.98rem; color: var(--xqv9-silver); }
.flow-step p { margin: 0; font-size: 0.85rem; color: var(--xqv9-text-secondary); }

/* ---------- Le compte est au centre (brief §9) ---------- */

.account-grid { display: grid; gap: var(--gap-md); }
.account-intro { margin-bottom: 0; }
.account-card { width: 100%; max-width: 620px; margin: 0 auto; padding: var(--gap-md); border: 1px solid var(--xqv9-border-blue); border-radius: var(--radius-md); background: linear-gradient(180deg, var(--xqv9-card), var(--xqv9-bg-secondary)); }
.account-card-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: var(--gap-xs); margin-bottom: var(--gap-xs); border-bottom: 1px solid var(--xqv9-border); font-size: 1.05rem; font-weight: 700; color: var(--xqv9-silver); }
.account-rules { margin: 0; }
.account-row { display: flex; align-items: baseline; justify-content: space-between; padding: 0.5rem 0; border-bottom: 1px solid var(--xqv9-border); font-size: 0.88rem; }
.account-row:last-child { border-bottom: none; }
.account-row dt { color: var(--xqv9-text-secondary); }
.account-row dd { margin: 0; color: var(--xqv9-silver); font-weight: 600; }

/* ---------- Execution / Quality / Vigilance (brief §10) ---------- */

.eqv-grid { display: grid; grid-template-columns: 1fr; gap: var(--gap-sm); }

@media (min-width: 940px) {
  .eqv-grid { grid-template-columns: repeat(3, 1fr); }
}

.eqv-block { padding: var(--gap-md); text-align: center; border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: var(--xqv9-card); }
.eqv-block-accent { border-color: var(--xqv9-border-blue); box-shadow: 0 0 40px rgba(77, 163, 255, 0.08); }
.eqv-glyph { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; margin-bottom: var(--gap-xs); border-radius: 50%; border: 1px solid var(--xqv9-border-blue); color: var(--xqv9-blue-bright); font-size: 1.4rem; font-weight: 700; }
.eqv-block h3 { margin: 0 0 0.2rem; font-size: 1.15rem; color: var(--xqv9-silver); }
.eqv-tag { margin: 0 0 0.6rem; color: var(--xqv9-text-secondary); font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase; }
.eqv-block p:last-child { margin: 0; color: var(--xqv9-text-secondary); font-size: 0.9rem; }

/* ---------- Live gratuit (brief §11) ---------- */

.live-panel { max-width: 720px; margin: 0 auto; padding: var(--gap-xl) var(--gap-md); text-align: center; border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: var(--xqv9-card); }
.live-copy h2 { margin: 0 0 var(--gap-2xs); font-size: clamp(1.4rem, 2.6vw, 1.9rem); color: var(--xqv9-silver); }
.live-copy .lead { margin: 0 0 var(--gap-sm); color: var(--xqv9-text-secondary); }
.live-note { margin: var(--gap-sm) 0 0; font-size: 0.85rem; color: var(--xqv9-text-secondary); }

/* ---------- Parcours d'inscription (brief §12) ---------- */

.onboarding-steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--gap-sm); }

@media (min-width: 760px) {
  .onboarding-steps { grid-template-columns: repeat(5, 1fr); }
}

.onboarding-step { padding: var(--gap-sm) var(--gap-xs); text-align: center; border: 1px solid var(--xqv9-border); border-radius: var(--radius-md); background: var(--xqv9-bg-secondary); }
.onboarding-index { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; margin-bottom: var(--gap-xs); border-radius: 50%; border: 1px solid var(--xqv9-border-blue); color: var(--xqv9-blue-bright); font-weight: 700; font-size: 0.9rem; }
.onboarding-step h3 { margin: 0; font-size: 0.85rem; color: var(--xqv9-silver); }
.onboarding-note { max-width: 640px; margin: var(--gap-sm) auto 0; text-align: center; color: var(--xqv9-text-secondary); font-size: 0.88rem; }

/* ---------- Panneau CTA de clôture ---------- */

.cta-panel { max-width: 560px; margin: var(--gap-lg) auto 0; padding: var(--gap-md); text-align: center; border: 1px solid var(--xqv9-border-blue); border-radius: var(--radius-md); background: var(--xqv9-card); }
.cta-panel h2 { margin: 0 0 var(--gap-2xs); font-size: clamp(1.3rem, 2.4vw, 1.6rem); color: var(--xqv9-silver); }
.cta-panel p { margin: 0 0 var(--gap-sm); color: var(--xqv9-text-secondary); font-size: 0.85rem; }

/* ---------- Pied de page (brief §18 + §23) ---------- */

.xqv9-footer { padding: var(--gap-md) 0; border-top: 1px solid var(--xqv9-border); color: var(--xqv9-text-secondary); font-size: 0.8rem; }
.footer-grid { display: grid; gap: var(--gap-xs); }
.footer-brand { display: flex; align-items: baseline; gap: var(--gap-xs); }
.footer-wordmark { color: var(--xqv9-silver); font-weight: 700; letter-spacing: 0.04em; }
.footer-tagline { font-size: 0.78rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: var(--gap-sm); }
.footer-nav a { text-decoration: none; color: var(--xqv9-text-secondary); }
.footer-nav a:hover { color: var(--xqv9-blue-bright); }
.footer-legal, .footer-copyright { max-width: 760px; margin: 0; }

/* ---------- Page légale (mission CODEX-XQV9-LANDING-LEGAL-FOOTER-01, 05/09/2026) ----------
   Additive uniquement : mêmes tokens --xqv9-*, aucune couleur nouvelle, aucune retouche du
   hero/palette/footer existants. */

.legal-page { padding: var(--gap-lg) 0 var(--gap-xl); }
.legal-back { display: inline-block; margin-bottom: var(--gap-sm); color: var(--xqv9-blue-bright); font-size: 0.85rem; text-decoration: none; }
.legal-back:hover { text-decoration: underline; }
.legal-intro { max-width: 720px; margin: 0 0 var(--gap-lg); color: var(--xqv9-text-secondary); }
.legal-toc { display: flex; flex-wrap: wrap; gap: var(--gap-xs); margin: 0 0 var(--gap-lg); padding: 0; list-style: none; }
.legal-toc a { display: inline-block; padding: 0.5rem 0.9rem; border: 1px solid var(--xqv9-border); border-radius: var(--radius-pill); color: var(--xqv9-text-secondary); font-size: 0.82rem; text-decoration: none; }
.legal-toc a:hover { border-color: var(--xqv9-border-blue); color: var(--xqv9-blue-bright); }
.legal-section { padding: var(--gap-lg) 0; border-top: 1px solid var(--xqv9-border); scroll-margin-top: 88px; }
.legal-section:first-of-type { border-top: none; }
.legal-section h2 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); color: var(--xqv9-silver); margin: 0 0 var(--gap-2xs); }
.legal-status { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.2rem 0.6rem; margin-bottom: var(--gap-sm); border-radius: var(--radius-pill); border: 1px solid var(--xqv9-border-blue); color: var(--xqv9-blue-bright); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.legal-section p { max-width: 760px; color: var(--xqv9-text-secondary); font-size: 0.92rem; }
.legal-section .legal-note { font-size: 0.8rem; opacity: 0.85; }

/* ---------- Apparition discrète au défilement (amélioration progressive, sans dépendance) ---------- */

[data-xqv9-reveal] { opacity: 0; transform: translateY(10px); transition: opacity 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1); }
[data-xqv9-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-xqv9-reveal] { opacity: 1; transform: none; transition: none; }
  .radar-sweep { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Petits écrans (brief §22 — Hero très court, CTA toujours accessible) ---------- */

@media (max-width: 520px) {
  .hero-cockpit { padding-top: var(--gap-md); }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
}