/* Pyme Altiro — landing estática, mobile-first, sin dependencias */
:root{
  --green-900:#0b3d26; --green-700:#0f5132; --green-500:#198754; --green-100:#e6f4ec;
  --yellow:#ffd166; --ink:#1b1f1d; --muted:#5b6560; --line:#dfe6e2; --bg:#ffffff; --bg-alt:#f6f8f7;
  --radius:14px; --shadow:0 6px 24px rgba(15,81,50,.10);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;font-size:16px}
img{max-width:100%}
a{color:var(--green-700)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:2rem}
h2{font-size:1.6rem}
h3{font-size:1.2rem}
h4{font-size:1.05rem}
p{margin:0 0 1em}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
.wrap--narrow{max-width:760px}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;background:var(--green-700);color:#fff;
  font-weight:700;text-decoration:none;border:2px solid var(--green-700);border-radius:999px;padding:.75em 1.3em;
  font-size:1rem;cursor:pointer;transition:transform .12s ease,background .12s ease;text-align:center}
.btn:hover{background:var(--green-900);border-color:var(--green-900)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}
.btn s{opacity:.7;font-weight:500}
.btn--sm{padding:.45em 1em;font-size:.9rem}
.btn--lg{padding:.9em 1.5em;font-size:1.05rem}
.btn--block{display:flex;width:100%}
.btn--ghost{background:transparent;color:var(--green-700)}
.btn--ghost:hover{background:var(--green-100);color:var(--green-900)}
.btn--light{background:var(--yellow);border-color:var(--yellow);color:var(--green-900)}
.btn--light:hover{background:#ffc53d;border-color:#ffc53d}

/* Topbar */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(1.4) blur(6px);border-bottom:1px solid var(--line)}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:12px;height:60px}
.logo{display:inline-flex;align-items:center;gap:.5em;font-weight:800;font-size:1.15rem;color:var(--ink);text-decoration:none}
.logo b{color:var(--green-500)}
.logo__mark{width:26px;height:26px;border-radius:7px;background:var(--green-700);position:relative;flex:none}
.logo__mark::after{content:"";position:absolute;left:6px;top:7px;width:10px;height:10px;border-top:3px solid var(--yellow);border-right:3px solid var(--yellow);transform:rotate(-45deg) translate(-1px,3px)}
.logo--light{color:#fff}
.logo--light b{color:var(--yellow)}
.nav{display:none}

/* Hero */
.hero{background:linear-gradient(180deg,var(--green-100),#fff);padding:40px 0 48px}
.hero__grid{display:grid;gap:32px}
.eyebrow{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--green-500);margin-bottom:.6em}
.lead{font-size:1.08rem;color:#333d38}
.hero__ctas{display:flex;flex-direction:column;gap:10px;margin:22px 0 16px}
.hero__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.chat__label{font-size:.78rem;font-weight:700;color:var(--muted);margin:0 0 6px;text-transform:uppercase;letter-spacing:.05em}
.bubble{border-radius:14px;padding:12px 14px;margin-bottom:14px;font-size:.95rem}
.bubble--me{background:#eef1ef;border-top-left-radius:4px}
.bubble--ai{background:#dcf8c6;border-top-right-radius:4px}
.chat__foot{font-size:.78rem;color:var(--muted);margin:0}

/* Listas */
.checks,.x-list{list-style:none;padding:0;margin:0 0 1em}
.checks li,.x-list li{position:relative;padding-left:1.7em;margin:.45em 0}
.checks li::before{content:"✓";position:absolute;left:0;top:0;color:var(--green-500);font-weight:800}
.x-list li::before{content:"✕";position:absolute;left:0;top:0;color:#c0392b;font-weight:800}
.checks--inline{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:.92rem;color:var(--muted)}
.checks--inline li{margin:0}

/* Secciones */
.section{padding:56px 0}
.section--alt{background:var(--bg-alt)}
.sub{margin-top:28px}

.ps{display:grid;gap:16px;margin-top:24px}
.ps__col{border-radius:var(--radius);padding:22px;border:1px solid var(--line);background:#fff}
.ps__col--problem{background:#fff7f5;border-color:#f3d9d3}
.ps__col--solution{background:var(--green-100);border-color:#c7e6d4}
.stat{margin:28px auto 0;max-width:720px;text-align:center;font-weight:600;font-size:1.05rem}
.stat__src{display:block;font-weight:400;font-size:.82rem;color:var(--muted);margin-top:4px}

.blocks{display:grid;gap:12px}
.block{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 8px;position:relative}
.block__n{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--green-700);color:var(--yellow);font-weight:800;font-size:.9rem;margin-bottom:10px}
.block p{color:var(--muted);font-size:.95rem}
.extras{display:grid;gap:16px;margin-top:28px}
.extra{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}

/* Ejemplos */
.examples{display:grid;gap:18px;margin-top:28px}
.ex{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:#fff;box-shadow:var(--shadow);min-width:0}
.tag{display:inline-block;background:var(--green-100);color:var(--green-700);font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:8px}
.ex__when{font-size:.92rem;color:var(--muted)}
.prompt{background:#14231b;color:#e7f3ec;border-radius:10px;padding:14px;font-family:var(--mono);font-size:.8rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word;margin:0 0 12px;max-height:340px;overflow:auto}
.ex__out{font-size:.9rem;background:var(--bg-alt);border-radius:10px;padding:10px 12px;margin:0}

/* Precios */
.plans{display:grid;gap:18px;margin-top:28px}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px 18px;display:flex;flex-direction:column}
.plan .checks{flex:1}
.plan--main{border:2px solid var(--green-700);box-shadow:var(--shadow)}
.ribbon{position:absolute;top:-12px;left:20px;background:var(--yellow);color:var(--green-900);font-size:.75rem;font-weight:800;padding:4px 10px;border-radius:999px}
.ribbon--soft{background:var(--green-100);color:var(--green-700)}
.price{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 10px;margin:4px 0 14px}
.price__old{color:var(--muted);font-size:1.05rem}
.price__now{font-size:2.1rem;font-weight:800;color:var(--green-900)}
.price__unit{font-size:.85rem;color:var(--muted);width:100%}
.plan .small{margin:10px 0 0}
.intl{margin-top:22px;display:flex;flex-direction:column;gap:10px;align-items:flex-start;background:#fff;border:1px dashed #b9cfc3;border-radius:var(--radius);padding:16px 20px}
.intl p{margin:0}

/* Lead magnet */
.leadbox{display:grid;gap:28px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}
.field input[type=text],.field input[type=email],.field select{width:100%;font:inherit;padding:.75em .9em;border:1.5px solid #c9d3ce;border-radius:10px;background:#fff;color:var(--ink)}
.field--check{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start}
.field--check input{width:20px;height:20px;margin:2px 0 0;accent-color:var(--green-700)}
.field--check label{font-weight:400;font-size:.9rem;margin:0}
.field--check .err{grid-column:2}
.err{display:none;color:#b42318;font-size:.85rem;margin:6px 0 0}
.field.is-invalid .err{display:block}
.field.is-invalid input,.field.is-invalid select{border-color:#b42318}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.form .small{margin:10px 0 0}
.form__ok{background:var(--green-100);border:1px solid #b6dcc6;border-radius:10px;padding:14px;margin-top:4px}
.form__ok-title{font-weight:800;font-size:1.1rem;color:var(--green-900);margin-bottom:4px}
.form__ok p:last-child{margin:0}
.form__fail{color:#b42318;font-size:.9rem;margin:12px 0 0}
.form.is-done .field,.form.is-done button,.form.is-done > .small{display:none}

/* FAQ */
.faq{margin-top:20px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:0 18px}
.faq summary{cursor:pointer;font-weight:700;padding:16px 28px 16px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:12px;font-size:1.4rem;color:var(--green-500)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:#3a4440}

/* CTA final y footer */
.cta-final{background:var(--green-700);color:#fff;padding:52px 0}
.cta-final h2{color:#fff}
.cta-final .small{opacity:.85;margin-top:12px}
.footer{background:var(--green-900);color:#cfe3d8;padding:32px 0}
.footer a{color:#fff}
.footer__in{display:grid;gap:18px}
.footer p{margin:.3em 0}

/* Tablet */
@media (min-width:640px){
  h1{font-size:2.5rem}
  .hero__ctas{flex-direction:row;flex-wrap:wrap}
  .ps,.extras{grid-template-columns:1fr 1fr}
  .blocks{grid-template-columns:1fr 1fr}
  .intl{flex-direction:row;align-items:center;justify-content:space-between}
  .footer__in{grid-template-columns:1fr auto;align-items:end}
}
/* Desktop */
@media (min-width:960px){
  h1{font-size:3rem}
  h2{font-size:2rem}
  .nav{display:flex;gap:22px}
  .nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
  .nav a:hover{color:var(--green-500)}
  .hero{padding:72px 0 80px}
  .hero__grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:48px}
  .section{padding:80px 0}
  .blocks{grid-template-columns:repeat(3,1fr)}
  .examples{grid-template-columns:repeat(3,1fr)}
  .plans{grid-template-columns:repeat(3,1fr);align-items:stretch}
  .leadbox{grid-template-columns:1fr 1fr;align-items:center;gap:56px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}