/* ══════════ Base ══════════ */
:root {
  --bg: #0a0a0a;
  --panel: #0d0d0d;
  --fg: #ededed;
  --muted: #9a9a9a;
  --muted-2: #8a8a8a;
  --muted-3: #7a7a7a;
  --muted-4: #6f6f6f;
  --muted-5: #5f5f5f;
  --accent: #74d8a0;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.1);
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --font-display: "Space Grotesk", sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 180ms;   /* micro-interactions (hover, focus) */
  --dur-reveal: 600ms; /* apparitions au scroll */
  --grid: 64px;        /* pas de la grille de croix (doit correspondre aux SVG inline) */
  --brand-logo-height: 28px;
  --brand-logo-small-height: 21px;
  --brand-glow-light: rgba(255, 255, 255, 0.18);
  --brand-glow-accent: rgba(116, 216, 160, 0.42);
}

html, body { margin: 0; }
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64'%3E%3Cpath d='M32 29v6M29 32h6' stroke='rgba(255,255,255,0.10)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: var(--grid) var(--grid);
  color: var(--fg);
  font-family: var(--font-mono);
}

a { color: inherit; }
*, *::before, *::after { box-sizing: border-box; }

/* ══════════ Halo curseur (décor réactif) ══════════ */
/* Petit calque fixe (mêmes croix que le fond, plus lumineuses) déplacé par
   transform par anim.js : le dégradé et le masque sont rasterisés une seule
   fois, seul le compositing bouge à chaque frame. */
.cursor-halo {
  position: fixed;
  top: 0;
  left: 0;
  width: 480px;
  height: 480px;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(closest-side, rgba(255, 255, 255, 0.04), transparent),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64'%3E%3Cpath d='M32 29v6M29 32h6' stroke='rgba(190,235,210,0.32)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: auto, var(--grid) var(--grid);
  -webkit-mask-image: radial-gradient(closest-side, #000, transparent);
  mask-image: radial-gradient(closest-side, #000, transparent);
  transform: translate3d(-600px, -600px, 0);
  will-change: transform;
  opacity: 0;
  transition: opacity 500ms var(--ease-out);
}
.cursor-halo.is-on { opacity: 1; }

/* le contenu passe au-dessus du halo */
.hero-screen, .section { position: relative; z-index: 1; }

.container {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding-left: 48px;
  padding-right: 48px;
}

.section { border-top: 1px solid var(--line); }
.section-pad { padding-top: 104px; padding-bottom: 104px; }

.kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.kicker-muted { color: var(--muted-4); margin-bottom: 34px; }
/* curseur terminal clignotant en fin de kicker du hero */
.kicker-muted::after {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 1em;
  margin-left: 10px;
  vertical-align: text-bottom;
  background: var(--accent);
  animation: cursor-blink 1.1s steps(1) infinite;
}
@keyframes cursor-blink {
  50% { opacity: 0; }
}
.kicker-accent { color: var(--accent); margin-bottom: 20px; }

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0;
}

.fine-print {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted-5);
  margin: 26px 0 0;
}

/* ══════════ Boutons ══════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 4px;
  text-decoration: none;
}
.btn-primary {
  font-weight: 600;
  color: var(--bg);
  background: var(--fg);
  padding: 16px 24px;
  transition: background-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn-primary svg { transition: transform var(--dur-fast) var(--ease-out); }
.btn-primary:hover,
.btn-primary:focus-visible {
  background: #ffffff;
  transform: translateY(-2px);
}
.btn-primary:hover svg,
.btn-primary:focus-visible svg { transform: translateY(2px); }
.btn-ghost {
  gap: 9px;
  font-weight: 500;
  color: var(--fg);
  background: transparent;
  padding: 16px 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: border-color var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.04);
}

/* ══════════ Hero screen ══════════ */
.hero-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 26px 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-right: auto;
}
.brand-logo {
  width: auto;
  height: var(--brand-logo-height);
  aspect-ratio: 431 / 512;
  object-fit: contain;
  display: block;
  filter:
    drop-shadow(0 0 3px var(--brand-glow-light))
    drop-shadow(0 0 7px var(--brand-glow-accent));
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.nav .brand-accent { color: var(--accent); }

.nav-link {
  position: relative;
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-2);
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 1px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--fg); }
.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }
.nav-cta {
  text-decoration: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--fg);
  padding: 11px 18px;
  border-radius: 4px;
  font-weight: 600;
  transition: background-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.nav-cta:hover,
.nav-cta:focus-visible {
  background: #ffffff;
  transform: translateY(-1px);
}

.hero {
  flex: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 56px 48px 72px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(42px, 6.5vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin: 0 0 30px;
  text-wrap: balance;
}

.hero-lead {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 38px;
}

.tag {
  color: var(--fg);
  background: #1a1a1a;
  padding: 2px 7px;
  border-radius: 3px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

/* archive panel */
.archive-wrap { perspective: 900px; }
.archive-panel {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

/* construction ligne par ligne au chargement (anim.js) ; sans JS, tout est visible */
.js .archive-panel:not(.archive-built) [data-line] { opacity: 0; }
.js .archive-panel [data-line] { transition: opacity 150ms var(--ease-out); }
.js .archive-panel [data-line].line-on { opacity: 1; }

/* ligne de scan — balayage discret, démarré une fois la construction finie
   (classe archive-built posée par anim.js) */
.archive-panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -2px;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(116, 216, 160, 0.18), transparent);
  opacity: 0;
  pointer-events: none;
}
.archive-panel.archive-built::after {
  animation: archive-scan 9s linear 1s infinite;
}
@keyframes archive-scan {
  0%   { top: -2px; opacity: 1; }
  28%  { top: 100%; opacity: 1; }
  29%, 100% { top: 100%; opacity: 0; }
}
.archive-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}
.archive-name { color: #c9c9c9; }
.archive-size { color: var(--muted-5); }
.archive-tree {
  padding: 20px 18px;
  font-size: 12.5px;
  line-height: 2.05;
}
.tree-root { color: var(--fg); }
.tree-pipe, .tree-branch { color: var(--muted-5); }
.archive-footer {
  border-top: 1px solid var(--line);
  padding: 16px 18px;
  font-size: 12px;
  line-height: 1.9;
}
.line-ok { color: var(--accent); }
.line-no { color: var(--muted-4); }

/* status bar */
.status-bar { border-top: 1px solid var(--line); }
.status-inner {
  display: flex;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 16px 48px;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-3);
}
.status-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: dot-pulse 3.6s ease-in-out infinite;
}
.status-item:nth-of-type(2) .dot { animation-delay: -1.2s; }
.status-item:nth-of-type(3) .dot { animation-delay: -2.4s; }
@keyframes dot-pulse {
  50% { opacity: 0.35; }
}
.status-right { margin-left: auto; color: var(--muted-5); }

/* ══════════ Fonctionnalités ══════════ */
.features-title { max-width: 20ch; margin-bottom: 16px; }
.section-lead {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 72px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
/* stagger du reveal par colonne (grille 3 colonnes) */
.features-grid .feature:nth-child(3n + 2) { --reveal-delay: 80ms; }
.features-grid .feature:nth-child(3n + 3) { --reveal-delay: 160ms; }
.feature {
  background: var(--bg);
  padding: 34px 30px;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.feature:hover { background: var(--panel); }
.feature-num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 34px;
  color: #3a3a3a;
  margin-bottom: 22px;
  transition: color var(--dur-fast) var(--ease-out);
}
.feature:hover .feature-num { color: var(--accent); }
.feature h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  margin: 0 0 12px;
}
.feature p {
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted-2);
  margin: 0;
}
.feature-code { color: #c9c9c9; }

/* ══════════ FAQ ══════════ */
.faq-title { margin-bottom: 64px; }
.faq-list { display: flex; flex-direction: column; }
.faq-row {
  position: relative;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}
.faq-row::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 30px;
  bottom: 30px;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur-fast) var(--ease-out);
}
.faq-row:hover::before { transform: scaleY(1); }
.faq-row-last { border-bottom: 1px solid var(--line); }
.faq-row h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  margin: 0;
  letter-spacing: -0.01em;
}
.faq-row p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

/* ══════════ Footer / CTA ══════════ */
.cta-pad {
  padding-top: 96px;
  padding-bottom: 96px;
  text-align: center;
}
.cta-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 5.5vw, 56px);
  line-height: 1.0;
  letter-spacing: -0.035em;
  margin: 0 0 28px;
}
.cta-pad .btn-primary { padding: 16px 26px; }
.cta-pad .fine-print { margin-top: 22px; }

.footer-bar { border-top: 1px solid var(--line); }
.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 48px;
  font-size: 12px;
  color: var(--muted-4);
}
.footer-inner a {
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-inner a:hover,
.footer-inner a:focus-visible { color: var(--fg); }
.brand-small { gap: 10px; }
.brand-small .brand-logo { height: var(--brand-logo-small-height); }
.brand-small .brand-name { font-size: 15px; color: var(--fg); }
.copyright { color: #4f4f4f; }

/* ══════════ Reveals au scroll ══════════ */
/* Scopé sur html.js (ajouté par anim.js) : sans JS, tout reste visible. */
.js .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ══════════ Responsive ══════════ */
@media (max-width: 900px) {
  .container, .nav, .hero, .status-inner, .footer-inner {
    padding-left: 24px;
    padding-right: 24px;
  }
  .nav { gap: 20px; }
  .nav-link { display: none; }
  .hero {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-top: 32px;
    padding-bottom: 56px;
  }
  .section-pad { padding-top: 72px; padding-bottom: 72px; }
  .features-grid { grid-template-columns: 1fr; }
  /* en colonne unique, chaque carte se révèle seule : pas de stagger */
  .features-grid .feature { --reveal-delay: 0ms; }
  .faq-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .status-inner { gap: 16px; }
  .status-right { margin-left: 0; }
}

@media (min-width: 640px) and (max-width: 900px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ══════════ Mouvement réduit ══════════ */
@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  /* Les changements de couleur restent, les translations disparaissent. */
  .btn-primary:hover, .btn-primary:focus-visible,
  .nav-cta:hover, .nav-cta:focus-visible { transform: none; }
  .btn-primary:hover svg, .btn-primary:focus-visible svg { transform: none; }
  html { scroll-behavior: auto; }
  /* décor réactif et ambiance : coupés (curseur terminal affiché fixe) */
  .cursor-halo { display: none; }
  .dot, .kicker-muted::after { animation: none; }
  .archive-panel::after { content: none; }
  .js .archive-panel:not(.archive-built) [data-line] { opacity: 1; }
}