:root {
  --bg: #05030e;
  --panel: rgba(10, 8, 28, 0.72);
  --primary: #00e5ff;
  --secondary: #3d7bff;
  --accent: #ff2bd6;
  --text: #cfe9f2;
  --font: "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  background-color: var(--bg);
  background-image:
    radial-gradient(1px 1px at 12% 18%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 78% 8%, #9fd8ff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 44% 34%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 88% 46%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 22% 62%, #ffb6f0 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 62% 78%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 90%, #9fd8ff 50%, transparent 51%),
    radial-gradient(ellipse at 20% 0%, rgba(61, 123, 255, 0.22), transparent 55%),
    radial-gradient(ellipse at 90% 30%, rgba(255, 43, 214, 0.14), transparent 50%);
  background-attachment: fixed;
}

a { color: var(--primary); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ---------- En-tête ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 24px;
  background: rgba(5, 3, 14, 0.82);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
}
.brand {
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 0.18em;
  font-weight: 700;
  text-shadow: 0 0 10px var(--primary);
  white-space: nowrap;
}
.brand span { color: var(--accent); text-shadow: 0 0 10px var(--accent); padding: 0 0.1em; }
.top nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.top nav a { text-decoration: none; font-size: 13px; letter-spacing: 0.08em; opacity: 0.85; }
.top nav a:hover { opacity: 1; color: var(--accent); }

/* ---------- Boutons ---------- */
.cta {
  display: inline-block;
  padding: 13px 28px;
  color: var(--bg);
  background: var(--accent);
  border-radius: 6px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-decoration: none;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: transform 0.15s, box-shadow 0.15s;
}
.cta:hover { transform: translateY(-1px); box-shadow: 0 0 28px var(--accent); color: var(--bg); }
.top nav a.cta.small { padding: 6px 14px; letter-spacing: 0.1em; opacity: 1; color: var(--bg); }
.ghost { margin-left: 18px; color: var(--secondary); text-decoration: none; letter-spacing: 0.08em; }
.ghost:hover { color: var(--accent); }

/* ---------- Mise en page ---------- */
main { max-width: 980px; margin: 0 auto; padding: 0 24px 40px; }

.hero { padding: 12vh 0 9vh; text-align: center; }
.eyebrow { margin: 0 0 14px; font-size: 12px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--secondary); }
.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(34px, 7vw, 64px);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--primary);
  text-shadow: 0 0 22px color-mix(in srgb, var(--primary) 60%, transparent);
}
.hero h1 em { font-style: normal; color: var(--accent); text-shadow: 0 0 22px color-mix(in srgb, var(--accent) 60%, transparent); }
.lead { max-width: 640px; margin: 0 auto 32px; font-size: 17px; }
.hero-actions { margin: 0; }

.block {
  margin: 0 0 28px;
  padding: 30px 32px;
  background: var(--panel);
  border: 1px solid color-mix(in srgb, var(--primary) 35%, transparent);
  border-radius: 10px;
  box-shadow: 0 0 18px color-mix(in srgb, var(--primary) 12%, transparent);
}
.block h2 {
  margin: 0 0 18px;
  font-size: 14px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--primary);
  text-shadow: 0 0 8px color-mix(in srgb, var(--primary) 70%, transparent);
}
.block p { margin: 0 0 14px; }
.block p:last-child { margin-bottom: 0; }
.block strong { color: var(--primary); font-weight: 600; }
.block em { color: var(--accent); font-style: normal; }
.note { opacity: 0.7; font-size: 13px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 8px 32px; }
.block > .hero-actions { margin-top: 24px; text-align: center; }

.steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.steps li { padding-left: 16px; border-left: 2px solid var(--accent); }
.steps b { color: var(--primary); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.card { padding: 16px 18px; border: 1px solid color-mix(in srgb, var(--secondary) 55%, transparent); border-radius: 8px; background: rgba(5, 3, 14, 0.5); }
.card h3 { margin: 0 0 6px; font-size: 14px; letter-spacing: 0.06em; color: var(--accent); }
.card p { margin: 0; font-size: 13.5px; }

/* ---------- Nouvelles ---------- */
.news { display: grid; gap: 14px; }
.post { padding: 14px 18px; border-left: 3px solid var(--primary); background: rgba(5, 3, 14, 0.5); border-radius: 0 8px 8px 0; }
.post.pinned { border-left-color: var(--accent); }
.post header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 16px; margin-bottom: 6px; }
.post h3 { margin: 0; font-size: 15px; color: var(--primary); }
.post time { font-size: 12px; color: var(--secondary); letter-spacing: 0.08em; }
.post p { margin: 0 0 8px; font-size: 14px; }
.post p:last-child { margin-bottom: 0; }

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  max-width: 980px;
  margin: 0 auto;
  padding: 18px 24px 40px;
  font-size: 12px;
  opacity: 0.6;
}
.foot a { text-decoration: none; }

@media (max-width: 560px) {
  .top { padding: 10px 16px; }
  .top nav a:not(.cta) { display: none; }
  main { padding: 0 16px 32px; }
  .block { padding: 22px 18px; }
  .ghost { display: block; margin: 16px 0 0; }
}