/* ===== Accueil + connexion ===== */
.wrap { width: min(1120px, 100% - 2 * var(--gutter)); margin: 0 auto; }
.nav { position: sticky; top: 0; z-index: 30; backdrop-filter: blur(10px); background: linear-gradient(180deg, #010812e6, #01081299); border-bottom: 1px solid var(--line2); }
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 60px; }
.logo { color: var(--cyan); letter-spacing: .45em; font-weight: 300; font-size: 1.15rem; text-shadow: 0 0 16px #3de6ff88; }
.nav .links { display: flex; gap: 20px; margin-left: auto; align-items: center; }
.nav .links a.l { color: var(--muted); font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; }
.nav .links a.l:hover { color: var(--cyan); }
.nav .btn { padding: 8px 14px; font-size: .78rem; }

.hero { padding: 56px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; align-items: center; }
.eyebrow { color: var(--cyan); font-size: .78rem; letter-spacing: .3em; text-transform: uppercase; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 300; letter-spacing: .12em; margin: 10px 0 14px; line-height: 1.05; text-shadow: 0 0 30px #1a9bff88; }
.hero h1 b { color: var(--cyan); font-weight: 600; white-space: nowrap; }
.hero p.lead { font-size: 1.12rem; color: #a9cde8; max-width: 52ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.hero .reactor { width: min(440px, 80vw); }
.demo { margin-top: 18px; font: .95rem var(--mono); color: var(--cyan); min-height: 1.6em; text-align: center; }
.demo::after { content: '▍'; animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

section.block { padding: 50px 0; }
section.block h2 { font-size: .8rem; letter-spacing: .35em; text-transform: uppercase; color: var(--cyan); margin: 0 0 6px; font-weight: 600; }
section.block h2 + p.sub { font-size: 1.7rem; font-weight: 300; letter-spacing: .04em; margin: 0 0 26px; max-width: 30ch; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card h4 { margin: 4px 0 6px; font-weight: 600; letter-spacing: .06em; font-size: 1rem; color: var(--ice); }
.card p { margin: 0; color: #93b6d2; font-size: .92rem; }
.card .ico { font-size: 1.5rem; color: var(--cyan); text-shadow: 0 0 14px var(--cyan); }
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps .panel { counter-increment: s; }
.steps .panel::before { content: counter(s, decimal-leading-zero); border: 0; width: auto; height: auto; position: static; display: block; font: 600 2rem var(--mono); color: var(--cyan); opacity: .9; text-shadow: 0 0 14px var(--blue); margin-bottom: 4px; }
.steps .panel::after { display: none; }
.dl-list { display: grid; gap: 12px; }
.dl-item { display: flex; align-items: center; gap: 14px; justify-content: space-between; flex-wrap: wrap; }
footer.foot { border-top: 1px solid var(--line2); padding: 26px 0 40px; color: var(--muted); font-size: .82rem; text-align: center; }

/* ---- connexion ---- */
.auth-page .auth { min-height: 100dvh; display: grid; place-content: center; justify-items: center; gap: 16px; padding: 24px var(--gutter); position: relative; }
.back { position: absolute; left: 18px; top: 16px; font-size: .78rem; color: var(--muted); }
.reactor.mini { width: 150px; }
.auth-card { width: min(400px, 100%); padding: 24px 22px 22px; }
.auth-card .logo { text-align: center; margin-bottom: 4px; }
.auth-card form { display: grid; gap: 12px; margin-top: 14px; }
.center { text-align: center; }
.tabs { display: flex; gap: 6px; margin-top: 12px; }
.tab { flex: 1; background: rgba(4, 20, 40, .8); border: 1px solid var(--line2); color: var(--muted); padding: 8px; cursor: pointer; letter-spacing: .08em; font-size: .82rem; text-transform: uppercase; }
.tab.on { color: var(--ice); border-color: var(--cyan); box-shadow: inset 0 0 14px #3de6ff22; }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .hero p.lead { margin-inline: auto; } .cta { justify-content: center; }
  .grid, .steps { grid-template-columns: 1fr; }
  .nav .links a.l { display: none; }
  .logo { letter-spacing: .3em; font-size: 1rem; }
}