/* Nido landing — oscura a propósito: es la estética de la app.
   Motion según animations.dev: ease-out fuerte, <500ms, stagger corto, reveals una vez. */
:root {
  --bg: #0d1310;
  --bg-2: #111917;
  --card: #16211d;
  --line: #24312c;
  --ink: #f2f4f1;
  --muted: #a3aea7;
  --primary: #2f9e8f;
  --primary-2: #1c9c82;
  --soft: #17342c;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --maxw: 1020px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: .8rem clamp(1rem, 4vw, 2.5rem);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 800; font-size: 1.05rem; text-decoration: none;
}
.brand img { border-radius: 7px; }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font: inherit; font-weight: 700; font-size: .95rem;
  padding: .7rem 1.3rem; border-radius: 999px;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform 160ms var(--ease-out), background 200ms ease, border-color 200ms ease;
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--primary); color: #06110d; }
.btn.ghost { border-color: var(--line); color: var(--ink); }
.btn.sm { padding: .45rem .95rem; font-size: .85rem; }
.btn.big { padding: .9rem 1.8rem; font-size: 1.05rem; }
.btn.block { width: 100%; }
@media (hover: hover) and (pointer: fine) {
  .btn.primary:hover { background: var(--primary-2); }
  .btn.ghost:hover { border-color: var(--primary); }
}

/* ---------- layout común ---------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }
section { margin: clamp(3rem, 9vw, 6rem) 0; scroll-margin-top: 4.5rem; }
.eyebrow {
  font-size: .75rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  color: var(--primary-2); margin: 0 0 .4rem;
}
h1 {
  font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.08;
  letter-spacing: -0.02em; margin: 0 0 .8rem; text-wrap: balance;
}
h2 {
  font-size: clamp(1.4rem, 3.4vw, 2rem); line-height: 1.15;
  letter-spacing: -0.01em; margin: 0 0 .7rem; text-wrap: balance;
}
.lede { font-size: 1.08rem; color: var(--muted); max-width: 34rem; margin: 0 0 1.4rem; }
.hint { font-size: .82rem; color: var(--muted); }
.center { text-align: center; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 1.2rem 1.3rem;
}

/* ---------- hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 2.5rem; align-items: center;
  padding-top: clamp(2rem, 6vw, 4rem); margin-top: 0;
}
.cta-row { display: flex; gap: .7rem; flex-wrap: wrap; margin-bottom: .8rem; }
.phone {
  border: 6px solid #222c28; border-radius: 34px; overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
  max-width: 300px; margin: 0 auto;
  background: var(--bg-2);
}
.phone.small { max-width: 260px; }

/* flotación sutil del hero: decorativa y rara de ver (solo la portada) — permitido */
.hero-shot .phone { animation: float 7s ease-in-out infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* entrada orquestada del hero (una sola vez, al cargar) */
[data-enter] {
  opacity: 0;
  transform: translateY(10px);
  animation: enter 600ms var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 70ms);
}
@keyframes enter { to { opacity: 1; transform: translateY(0); } }

/* ---------- dolores ---------- */
.pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: .9rem; }
.pain { display: flex; flex-direction: column; gap: .2rem; }
.pain .emoji { font-size: 1.6rem; }
.pain b { font-size: 1rem; }
.pain p { margin: 0; font-size: .88rem; color: var(--muted); }

/* ---------- features ---------- */
.feature {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 2.5rem; align-items: center;
}
.feature.flip { grid-template-columns: .85fr 1.15fr; }
.feature.flip .feature-copy { order: 2; }
.feature-copy p { color: var(--muted); max-width: 32rem; }
.feature-copy ul { margin: .8rem 0 0; padding-left: 1.2rem; color: var(--muted); display: flex; flex-direction: column; gap: .35rem; }
.feature-copy li::marker { color: var(--primary-2); }

/* ---------- precios ---------- */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; max-width: 760px; margin: 1.5rem auto 1rem; }
.plan > b { font-size: 1.05rem; display: block; }
.price { font-size: 2.1rem; font-weight: 800; margin: .3rem 0 .1rem; }
.price s { color: var(--muted); font-weight: 600; font-size: 1.1rem; margin-right: .3rem; }
.price .per { font-size: .95rem; font-weight: 600; color: var(--muted); }
.plan-sub { margin: 0 0 .4rem; font-size: .85rem; color: var(--muted); }
.plan ul { margin: .6rem 0 1rem; padding-left: 1.15rem; font-size: .88rem; color: var(--muted); display: flex; flex-direction: column; gap: .3rem; }
.plan.featured { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary), 0 18px 50px rgba(31, 158, 143, .12); }
.badge {
  font-size: .62rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
  background: var(--soft); color: var(--primary-2); border-radius: 999px; padding: .2rem .6rem;
  vertical-align: middle; margin-left: .3rem;
}

/* ---------- faq ---------- */
.faq { max-width: 640px; margin-left: auto; margin-right: auto; }
.faq details {
  border-bottom: 1px solid var(--line); padding: .9rem .2rem;
}
.faq summary {
  cursor: pointer; font-weight: 700; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
.faq summary::after {
  content: "+"; color: var(--primary-2); font-size: 1.2rem; font-weight: 600;
  transition: transform 200ms var(--ease-out);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--muted); font-size: .92rem; margin: .6rem 0 0; }

/* ---------- cta final / footer ---------- */
.final-cta { text-align: center; padding: 2.5rem 0; }
.final-cta p { color: var(--muted); margin: 0 0 1.4rem; }
footer {
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: 1.4rem clamp(1rem, 4vw, 2.5rem); font-size: .85rem; color: var(--muted);
}
footer a { color: var(--primary-2); text-decoration: none; }

/* ---------- reveals al scroll (una sola vez) ----------
   Solo si hay JS (html.js): sin JavaScript todo queda visible. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 550ms var(--ease-out), transform 550ms var(--ease-out);
}
.js [data-reveal].in { opacity: 1; transform: translateY(0); }

/* stagger corto (60ms) entre las 3 tarjetas de dolores: cascada, nunca bloqueante */
.js .pain:nth-child(2) { transition-delay: 60ms; }
.js .pain:nth-child(3) { transition-delay: 120ms; }

/* los teléfonos de features entran con un scale apenas visible (nunca desde 0) */
.js .feature[data-reveal] .phone { transform: scale(0.97); transition: transform 550ms var(--ease-out); }
.js .feature[data-reveal].in .phone { transform: scale(1); }

/* ---------- responsive ---------- */
@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero .lede { margin-inline: auto; }
  .cta-row { justify-content: center; }
  .pains { grid-template-columns: 1fr; }
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 1.4rem; }
  .feature.flip .feature-copy { order: 0; }
  .plans { grid-template-columns: 1fr; }
}

/* ---------- reduced motion: sin desplazamientos, solo fades ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-enter] { animation: none; opacity: 1; transform: none; }
  .js [data-reveal] { transform: none; transition: opacity 250ms ease; }
  .js .feature[data-reveal] .phone { transform: none; transition: none; }
  .hero-shot .phone { animation: none; }
  .btn, .btn:active { transition: none; transform: none; }
}