:root{
  --bg:#0B0F14;
  --card:#0E141B;
  --border:#1C2430;
  --text:#F5F7FA;
  --muted:#9AA0A6;
  --accent:#2E7BFF; /* azul eléctrico */
  --shadow: 0 12px 40px -10px rgba(46,123,255,.35);
  --shadow-soft: 0 8px 30px -12px rgba(0,0,0,.45);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:inherit;text-decoration:none}

.container{max-width:960px;margin:0 auto;padding:16px}

header{
  position:sticky;top:0;z-index:10;
  background:var(--bg);
  border-bottom:1px solid var(--border);
}

.nav{display:flex;align-items:center;justify-content:space-between;padding:10px 6px}
.nav img.logo{height:28px;width:auto;filter:invert(1)}

.menu-btn{width:36px;height:36px;border:1px solid var(--border);border-radius:10px;background:transparent;color:var(--text);display:grid;place-items:center}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text)}
.menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}

.drawer{position:fixed;inset:0 0 0 auto;width:78%;max-width:360px;background:var(--card);border-left:1px solid var(--border);transform:translateX(100%);transition:transform .25s ease;padding:22px}
.drawer.open{transform:translateX(0)}
.drawer a{display:block;padding:14px 0;border-bottom:1px solid var(--border);color:var(--text)}
.drawer .close{position:absolute;top:12px;right:12px;border:1px solid var(--border);background:transparent;color:var(--text);border-radius:8px;padding:6px 10px}

.hero{padding:40px 0 24px;text-align:left}
.hero h1{font-size:36px;line-height:1.15;margin:4px 0 8px}
.hero p{color:var(--muted);margin:0 0 18px}
.hero .cta{display:inline-block;padding:14px 18px;border-radius:12px;background:#fff;color:#0A0A0A;font-weight:700;border:1px solid #fff;box-shadow:0 8px 40px -6px rgba(46,123,255,.35)}

.section{padding:28px 0;border-top:1px solid var(--border)}
.section h2{font-size:22px;margin:0 0 16px}

.benefits{display:grid;gap:12px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.card h3{margin:0 0 6px;font-size:18px;color:var(--accent)}
.card p{margin:0;color:var(--muted);font-size:14px}

.how{display:grid;gap:12px}
.step{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}
.step h4{margin:0 0 4px;color:var(--accent)}
.step p{margin:0;color:var(--muted);font-size:14px}

footer{padding:28px 0;border-top:1px solid var(--border);color:var(--muted)}
footer h2{color:var(--text);margin-bottom:12px}
footer .contact{display:grid;gap:6px}

@media(min-width:720px){
  .benefits{grid-template-columns:repeat(3,1fr)}
  .how{grid-template-columns:repeat(3,1fr)}
  .hero h1{font-size:44px}
}
/* Altura de cabecera (fallback) */
:root { --header-h: 64px; }

/* Asegura la cabecera por encima del contenido normal */
header {
  position: sticky; /* o fixed si ya lo usas */
  top: 0;
  z-index: 1000;
}

/* Drawer sobre la cabecera */
.drawer {
  position: fixed;
  top: 0;
  right: -340px;                   /* fuera de pantalla al inicio */
  width: min(86vw, 340px);
  height: 100vh;
  background: var(--bg, #fff);
  box-shadow: -24px 0 40px rgba(0,0,0,.18);
  transition: right .3s ease;
  /* evita que el título quede debajo del header */
  padding: calc(var(--header-h) + 16px) 20px 24px;
  overflow: auto;
  z-index: 2000;                   /* > header */
}

/* Drawer visible */
.drawer.open { right: 0; }

/* Backdrop por debajo del drawer pero sobre el contenido */
.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.32);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 1500;                   /* entre header y drawer está bien */
}
.backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

/* Ajuste cosmético opcional */
.drawer h3 { margin: 0 0 12px; }