:root {
  --bg: #09090b;
  --bg2: #111113;
  --border: #232327;
  --text: #e4e4e7;
  --muted: #a1a1aa;
  --dim: #6b6b74;
  --accent: #4ade80;
  --accent-dark: #16a34a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ── */
nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(9,9,11,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
nav .container {
  display: flex; align-items: center; gap: 28px; height: 60px;
}
.logo {
  font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em;
  color: var(--text); text-decoration: none;
}
.logo span { color: var(--accent); }
nav .links { display: flex; gap: 20px; margin-left: auto; }
nav .links a {
  color: var(--muted); text-decoration: none; font-size: .9rem;
  transition: color .15s;
}
nav .links a:hover { color: var(--text); }
nav .panel-btn {
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--text); padding: 7px 16px; border-radius: 8px;
  font-size: .85rem; text-decoration: none; transition: border-color .15s;
}
nav .panel-btn:hover { border-color: var(--dim); }

/* ── Menú móvil ── */
#nav-toggle { display: none; }
.menu-btn {
  display: none; cursor: pointer; user-select: none;
  color: var(--text); font-size: 1.2rem; line-height: 1;
  padding: 5px 10px; border: 1px solid var(--border); border-radius: 8px;
}
.menu-btn::before { content: "☰"; }

/* ── Hero ── */
.hero {
  padding: 96px 0 72px;
  text-align: center;
  background:
    radial-gradient(ellipse 60% 45% at 50% -5%, rgba(74,222,128,.09), transparent),
    var(--bg);
}
.hero .tag {
  display: inline-block; border: 1px solid var(--border); background: var(--bg2);
  color: var(--dim); font-size: .75rem; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 24px; letter-spacing: .04em;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -.03em;
  line-height: 1.15; max-width: 780px; margin: 0 auto 18px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.sub {
  color: var(--muted); font-size: 1.08rem; max-width: 620px; margin: 0 auto 36px;
}
.hero .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 10px;
  font-weight: 600; font-size: .95rem; text-decoration: none;
  transition: all .15s;
}
.btn.primary { background: var(--accent-dark); color: #fff; }
.btn.primary:hover { background: #15803d; }
.btn.ghost { border: 1px solid var(--border); color: var(--text); background: var(--bg2); }
.btn.ghost:hover { border-color: var(--dim); }

/* ── Secciones ── */
section.block { padding: 72px 0; border-top: 1px solid var(--border); }
section.block:first-of-type { border-top: none; }
.kicker {
  color: var(--accent); font-size: .78rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 10px;
}
h2 { font-size: 1.7rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: 14px; }
.lead { color: var(--muted); max-width: 640px; margin-bottom: 40px; }

.grid { display: grid; gap: 18px; }
.grid.c2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.c3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }

.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px;
}
.card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .92rem; }
.card .icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(74,222,128,.1); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 16px;
}

/* pasos */
.step { display: flex; gap: 18px; align-items: flex-start; }
.step .n {
  flex-shrink: 0; width: 34px; height: 34px; border-radius: 10px;
  background: rgba(74,222,128,.1); color: var(--accent);
  font-weight: 700; display: flex; align-items: center; justify-content: center;
}

/* ── FAQ ── */
details {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px 22px; margin-bottom: 12px;
}
details summary {
  cursor: pointer; font-weight: 600; font-size: .95rem; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
details summary::after { content: "+"; color: var(--dim); font-size: 1.2rem; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); font-size: .92rem; margin-top: 12px; }

/* ── Legales ── */
.legal { padding: 56px 0 80px; }
.legal h1 { font-size: 1.8rem; margin-bottom: 6px; letter-spacing: -.02em; }
.legal .version { color: var(--dim); font-size: .85rem; margin-bottom: 34px; }
.legal h2 { font-size: 1.15rem; margin: 30px 0 10px; }
.legal p, .legal li { color: var(--muted); font-size: .95rem; margin-bottom: 10px; }
.legal ul { padding-left: 22px; }
.legal a { color: var(--accent); }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border); padding: 34px 0; margin-top: 40px;
}
footer .container {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
  color: var(--dim); font-size: .85rem;
}
footer .links { margin-left: auto; display: flex; gap: 18px; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--text); }

@media (max-width: 640px) {
  nav .container { gap: 16px; }
  nav .panel-btn { margin-left: auto; padding: 7px 12px; }
  .menu-btn { display: block; }
  nav .links {
    display: none;
    position: absolute; top: 60px; left: 0; right: 0;
    flex-direction: column; gap: 0; margin: 0;
    padding: 6px 24px 10px;
    background: rgba(9,9,11,.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
  }
  nav .links a {
    padding: 12px 0; font-size: .95rem;
    border-bottom: 1px solid var(--border);
  }
  nav .links a:last-child { border-bottom: none; }
  #nav-toggle:checked ~ .links { display: flex; }
  #nav-toggle:checked ~ .menu-btn::before { content: "✕"; }
  .hero { padding: 64px 0 48px; }
}