:root {
  --bg: #000;
  --panel: #05080d;
  --panel-2: #0a1119;
  --line: rgba(0, 229, 255, .16);
  --line-strong: rgba(0, 229, 255, .45);
  --text: #e8f3ff;
  --muted: #93a4b8;
  --cyan: #00e5ff;
  --violet: #b26bff;
  --pink: #ff3df0;
  --wa: #25d366;
  --radius: 18px;
  --mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.65 var(--sans);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); }
h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }
.mono { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

.skip {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--cyan); color: #000; padding: 8px 14px; border-radius: 8px; font-weight: 700;
}
.skip:focus { top: 12px; }

/* Fondo: rejilla + resplandores */
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(600px 400px at 50% 0%, rgba(0, 229, 255, .16), transparent 70%),
    radial-gradient(500px 400px at 90% 60%, rgba(178, 107, 255, .10), transparent 70%),
    linear-gradient(rgba(0, 229, 255, .055) 1px, transparent 1px) 0 0 / 44px 44px,
    linear-gradient(90deg, rgba(0, 229, 255, .055) 1px, transparent 1px) 0 0 / 44px 44px;
  -webkit-mask-image: linear-gradient(#000 0%, #000 55%, transparent 100%);
  mask-image: linear-gradient(#000 0%, #000 55%, transparent 100%);
}

/* Barra superior */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 16px;
  background: rgba(0, 0, 0, .72);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.logo {
  display: flex; align-items: center; gap: 10px; min-width: 0;
  color: var(--text); text-decoration: none;
  font: 700 .95rem/1 var(--mono);
}
.logo-mark { color: var(--cyan); text-shadow: 0 0 12px var(--cyan); flex: none; }
.logo-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar-cta {
  flex: none;
  font: 600 .85rem/1 var(--mono);
  color: var(--wa); text-decoration: none;
  border: 1px solid rgba(37, 211, 102, .6); border-radius: 999px;
  padding: 9px 14px;
  transition: background .2s, color .2s;
}
.topbar-cta:hover { background: var(--wa); color: #03140a; }

main { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* Cabecera */
.hero { text-align: center; padding: 48px 0 64px; }
.avatar {
  position: relative;
  width: min(250px, 64vw); aspect-ratio: 1;
  margin: 0 auto 30px;
}
.avatar::before {
  content: ""; position: absolute; inset: -5px; border-radius: 50%;
  background: conic-gradient(from 0deg, var(--cyan), var(--violet), var(--pink), var(--cyan));
  animation: spin 9s linear infinite;
  box-shadow: 0 0 40px rgba(0, 229, 255, .35), 0 0 80px rgba(178, 107, 255, .2);
}
.avatar img {
  position: relative;
  width: 100%; height: 100%;
  object-fit: cover; border-radius: 50%;
  border: 4px solid #000; background: #061018;
}
.kicker { color: var(--cyan); font-size: .9rem; letter-spacing: .06em; margin: 0 0 10px; }
.kicker::after { content: "_"; animation: blink 1.1s steps(1) infinite; }
h1 {
  margin: 0 0 18px;
  font-size: clamp(2.2rem, 8.5vw, 4.4rem); line-height: 1.04; font-weight: 800; letter-spacing: -.025em;
  background: linear-gradient(95deg, #fff 0%, var(--cyan) 50%, var(--violet) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { max-width: 640px; margin: 0 auto 30px; color: var(--muted); font-size: clamp(1.05rem, 2.6vw, 1.25rem); }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 50px; padding: 14px 26px; border-radius: 999px;
  font-weight: 800; font-size: 1.02rem; text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}
.btn svg { width: 22px; height: 22px; flex: none; }
.btn-wa { background: var(--wa); color: #03140a; box-shadow: 0 12px 34px -12px rgba(37, 211, 102, .85); }
.btn-wa:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -10px rgba(37, 211, 102, 1); }
.btn-lg { min-height: 58px; padding: 16px 32px; font-size: 1.1rem; }

/* Secciones */
.section { padding: 64px 0; border-top: 1px solid var(--line); }
.section h2 {
  margin: 0 0 28px; text-align: center;
  font-size: clamp(1.65rem, 5vw, 2.5rem); line-height: 1.15; letter-spacing: -.015em;
}
.section h2 .num {
  display: block; margin-bottom: 8px;
  font: 400 .85rem/1 var(--mono); letter-spacing: .12em; color: var(--cyan);
}
.section-intro { max-width: 680px; margin: -12px auto 32px; text-align: center; color: var(--muted); }
.about-text { max-width: 720px; margin: 0 auto; text-align: center; font-size: clamp(1.05rem, 2.4vw, 1.2rem); }
.about-text p { margin: 0 0 1em; }

.grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

.card, .steps li, .example {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .25s, box-shadow .25s, transform .25s;
}
.card:hover, .steps li:hover, .example:hover {
  border-color: var(--line-strong);
  box-shadow: 0 0 0 1px rgba(0, 229, 255, .12), 0 22px 44px -22px rgba(0, 229, 255, .45);
}
.card { padding: 22px; }
.card-icon {
  width: 52px; height: 52px; margin-bottom: 14px;
  display: grid; place-items: center;
  font-size: 1.6rem; border-radius: 14px;
  background: rgba(0, 229, 255, .07); border: 1px solid var(--line);
}
.card h3, .steps h3, .example h3 { margin: 0 0 6px; font-size: 1.14rem; line-height: 1.3; }
.card p, .steps p, .example p { margin: 0; color: var(--muted); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; counter-reset: paso; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { padding: 24px 22px; counter-increment: paso; }
.steps li::before {
  content: "0" counter(paso);
  display: block; margin-bottom: 10px;
  font: 700 2rem/1 var(--mono); color: var(--cyan);
  text-shadow: 0 0 16px rgba(0, 229, 255, .6);
}

.example { margin: 0; overflow: hidden; }
.example img { width: 100%; aspect-ratio: 16 / 11; object-fit: cover; background: #0b0f16; border-bottom: 1px solid var(--line); }
.example figcaption { padding: 16px 20px 22px; }

/* Contacto */
.contact-box {
  text-align: center;
  padding: 44px 20px;
  border-radius: 26px;
  border: 1px solid rgba(37, 211, 102, .4);
  background:
    radial-gradient(420px 220px at 50% 0%, rgba(37, 211, 102, .16), transparent 70%),
    linear-gradient(180deg, var(--panel-2), var(--panel));
}
.contact-box h2 { margin-bottom: 12px; }
.contact-box > p { max-width: 560px; margin: 0 auto 26px; color: var(--muted); }
.contact-box .phone { margin: 18px auto 0; color: var(--muted); font-size: .95rem; letter-spacing: .05em; }

.footer {
  padding: 32px 16px 100px;
  text-align: center; color: var(--muted); font-size: .9rem;
  border-top: 1px solid var(--line);
}

.footer p { margin: 0 0 14px; }
.owner-link { color: var(--muted); opacity: .55; font-size: .8rem; text-decoration: none; }
.owner-link:hover, .owner-link:focus-visible { opacity: 1; color: var(--cyan); }

/* Botón flotante de WhatsApp */
.wa-float {
  position: fixed; right: 16px; bottom: 16px; z-index: 20;
  width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--wa); color: #03140a;
  box-shadow: 0 10px 30px -6px rgba(37, 211, 102, .8);
}
.wa-float svg { width: 30px; height: 30px; }
.wa-float::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--wa); animation: pulse 2.4s ease-out infinite;
}

/* Animaciones de aparición (solo si hay JS) */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease, border-color .25s, box-shadow .25s; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@keyframes spin { to { transform: rotate(1turn); } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes pulse { from { transform: scale(1); opacity: .8; } to { transform: scale(1.6); opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}