/* Leopardo — gh-pages showcase. Static, system fonts only, no external deps. */
:root {
  --bg-0: #070b16;
  --bg-1: #0c1426;
  --bg-2: #101c34;
  --teal: #2dd4bf;
  --teal-soft: #5eead4;
  --teal-ink: #06251f;
  --white: #f8fafc;
  --grey: #94a3b8;
  --grey-light: #cbd5e1;
  --line: #1c2946;
  --line-hot: rgba(45, 212, 191, .55);
  --radius: 16px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-0);
  color: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.teal { color: var(--teal); }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(7, 11, 22, .82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); font-weight: 700; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px;
  border-radius: 10px; font-weight: 800; font-size: 16px;
  background: linear-gradient(135deg, var(--teal), #14b8a6 70%);
  color: var(--teal-ink);
  box-shadow: 0 4px 14px rgba(45, 212, 191, .35);
}
.brand-name { font-size: 18px; letter-spacing: .3px; }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: 14px; }
.nav-links a { color: var(--grey); transition: color .15s ease; }
.nav-links a:hover { color: var(--white); }

/* Buttons */
.btn {
  display: inline-block; padding: 10px 20px; border-radius: 10px;
  font-weight: 600; font-size: 14px; border: 1px solid transparent;
  cursor: pointer; transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.btn-solid { background: var(--teal); color: var(--teal-ink); }
.btn-solid:hover { background: var(--teal-soft); transform: translateY(-1px); }
.btn-ghost { border-color: var(--line); color: var(--white); background: transparent; }
.btn-ghost:hover { border-color: var(--teal); transform: translateY(-1px); }
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: 12px; }
.lang-toggle {
  background: transparent; border: 1px solid var(--line); color: var(--grey);
  border-radius: 8px; padding: 6px 12px; font-weight: 700;
}
.lang-toggle:hover { border-color: var(--teal); color: var(--white); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 64px;
  background:
    radial-gradient(950px 520px at 12% -12%, rgba(45, 212, 191, .16), transparent 60%),
    radial-gradient(720px 440px at 96% 8%, rgba(15, 118, 110, .15), transparent 55%);
  border-bottom: 1px solid var(--line);
}
/* Canvas 3D du héro : fond vivant derrière le contenu (repli = dégradé CSS). */
#hero3d {
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  opacity: 0; transition: opacity .8s ease;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 52px; align-items: center; }
.hero-eyebrow {
  color: var(--teal); font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.6px; margin-bottom: 16px;
}
.hero h1 { font-size: 48px; line-height: 1.12; letter-spacing: -.8px; margin-bottom: 18px; }
.hero-sub { color: var(--grey-light); font-size: 18px; max-width: 560px; margin-bottom: 28px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 14px; }
.hero-note { color: var(--grey); font-size: 13.5px; margin-bottom: 26px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags span {
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px;
  font-size: 13px; color: var(--grey-light); background: rgba(16, 28, 52, .55);
}
.hero-shot {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .55);
}

/* Stats */
.stats { border-bottom: 1px solid var(--line); background: var(--bg-1); padding-bottom: 18px; }
.stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; padding: 32px 24px 8px; }
.stat { text-align: center; }
.stat strong {
  display: block; font-size: 32px; letter-spacing: -.5px;
  background: linear-gradient(120deg, var(--teal-soft), var(--teal));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { font-size: 12.5px; color: var(--grey); }
.stats-note { margin: 6px 0 0; text-align: center; font-size: .78rem; color: #64748b; }

/* Sections */
.section { padding: 84px 0; }
.section.alt { background: var(--bg-1); border-block: 1px solid var(--line); }
.kicker {
  color: var(--teal); font-size: 12.5px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.6px; margin-bottom: 10px;
}
.section h2 { font-size: 34px; letter-spacing: -.5px; margin-bottom: 12px; }
.section-sub { color: var(--grey); margin-bottom: 42px; max-width: 660px; font-size: 16px; }
.section-sub.center { margin-inline: auto; text-align: center; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-hot); box-shadow: 0 16px 44px rgba(0, 0, 0, .35); }
.card-icon { font-size: 24px; margin-bottom: 12px; }
.card h3 { font-size: 17px; margin-bottom: 8px; }
.card p { color: var(--grey); font-size: 14px; }
.link-card { display: block; color: var(--white); }
.link-card p { color: var(--teal); word-break: break-all; }

/* Packs métiers offerts */
.pack-card { position: relative; }
.pack-card p { color: var(--grey); }
.pack-badge {
  position: absolute; top: 16px; right: 16px;
  background: rgba(45, 212, 191, .12); color: var(--teal-soft);
  border: 1px solid var(--line-hot); border-radius: 999px;
  padding: 4px 10px; font-size: 11px; font-weight: 800;
  text-transform: uppercase; letter-spacing: .6px;
}

/* Apps */
.apps-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.app-chip {
  border: 1px solid var(--line); border-radius: 14px; padding: 18px;
  background: var(--bg-2); transition: border-color .15s ease, transform .15s ease;
}
.app-chip:hover { border-color: var(--line-hot); transform: translateY(-3px); }
.app-chip strong { display: block; color: var(--teal); margin-bottom: 4px; font-size: 15px; }
.app-chip span { color: var(--grey); font-size: 13px; line-height: 1.5; display: block; }

/* Panneau Business OS */
.os-panel { text-align: center; }
.center-cta { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-top: 10px; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 36px 0; color: var(--grey); font-size: 14px; text-align: center; }
.footer strong { color: var(--white); }
.foot-links { margin-top: 10px; font-size: 13px; }
.foot-links a { color: var(--grey); }
.foot-links a:hover { color: var(--teal); }

/* Responsive */
@media (max-width: 1000px) {
  .apps-row { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero h1 { font-size: 36px; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); row-gap: 26px; }
  .nav-links { gap: 12px; }
  .nav-links a:not(.btn) { display: none; }
}
@media (max-width: 620px) {
  .hero { padding: 60px 0 48px; }
  .hero h1 { font-size: 31px; }
  .section { padding: 60px 0; }
  .section h2 { font-size: 27px; }
  .grid-3, .apps-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}