:root{--bg:#0f1712;--bg2:#13221a;--card:#16271d;--line:rgba(79,209,139,.22);--g:#4fd18b;--g2:#00995e;--tx:#fff;--mut:#b9cfc2}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--tx);font-family:Montserrat,system-ui,sans-serif;line-height:1.55;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.g{color:var(--g)}
h1,h2,h3{font-weight:800;line-height:1.1;letter-spacing:-.01em}
h2{font-size:clamp(28px,4.2vw,44px)}
p.lead{color:var(--mut);font-size:clamp(16px,1.6vw,19px);font-weight:500}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:14px 28px;font-weight:800;font-size:16px;text-decoration:none;transition:transform .15s,box-shadow .15s}
.btn.pri{background:var(--g);color:#0b1510;box-shadow:0 8px 30px rgba(79,209,139,.3)}
.btn.pri:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(79,209,139,.4)}
.btn.sec{border:2px solid var(--line);color:#dff5e8}
.btn.sec:hover{border-color:var(--g)}
.lema{letter-spacing:.3em;font-weight:600;font-size:13px;color:#cfe9da;text-transform:uppercase}

/* Cabecera */
nav{position:sticky;top:0;z-index:10;background:rgba(15,23,18,.85);backdrop-filter:blur(10px);border-bottom:1px solid rgba(79,209,139,.1)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;text-decoration:none}
.brand img{width:40px}
nav .links{display:flex;gap:24px;align-items:center}
nav .links a{text-decoration:none;font-weight:600;font-size:14px;color:var(--mut)}
nav .links a:hover{color:#fff}
nav .links .btn{padding:9px 20px;font-size:14px;color:#0b1510}

/* Portada */
.hero{position:relative;padding:72px 0 40px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 60% at 20% 30%,rgba(79,209,139,.18),transparent 70%),radial-gradient(ellipse 40% 50% at 90% 80%,rgba(0,153,94,.2),transparent 70%);pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero .logo{width:min(210px,60%);margin-bottom:18px}
.hero h1{font-size:clamp(34px,5vw,58px);margin:18px 0 18px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero .note{margin-top:14px;font-size:13px;color:var(--mut)}
.devices{position:relative;min-height:440px}
.devices .tab{position:absolute;right:0;top:20px;width:92%;border-radius:18px;border:8px solid #05080a;box-shadow:0 30px 80px rgba(0,0,0,.6),0 0 0 1px #2a3a31}
.devices .phone{position:absolute;left:0;bottom:0;width:36%;border-radius:26px;border:7px solid #05080a;box-shadow:0 30px 80px rgba(0,0,0,.7),0 0 0 1px #2a3a31,0 0 50px rgba(79,209,139,.2)}

/* Lema */
.pillars{padding:60px 0}
.pillars .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}
.card .k{font-size:13px;font-weight:800;letter-spacing:.2em;color:var(--g);text-transform:uppercase}
.card h3{font-size:22px;margin:10px 0 10px}
.card p{color:var(--mut);font-size:15px}

/* Secciones con imagen */
.feat{padding:70px 0}
.feat:nth-of-type(even){background:linear-gradient(180deg,transparent,var(--bg2) 20%,var(--bg2) 80%,transparent)}
.feat .wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.feat.rev .media{order:-1}
.feat ul{list-style:none;margin-top:22px;display:grid;gap:12px}
.feat li{display:flex;gap:12px;color:#dbe9e0;font-weight:500}
.feat li::before{content:"";flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--g) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12l4 4 8-8' fill='none' stroke='%230b1510' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/16px no-repeat}
.media img,.media video{border-radius:16px;border:7px solid #05080a;box-shadow:0 26px 70px rgba(0,0,0,.55),0 0 0 1px #2a3a31}
.media video{display:block;width:100%;height:auto;background:#0f1712}
.media.phones{display:flex;gap:18px;justify-content:center}
.media.phones img{width:46%;border-radius:24px}
.media.phones img:last-child{margin-top:40px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chips span{border:1.5px solid var(--line);border-radius:999px;padding:7px 14px;font-weight:700;font-size:14px;color:#dff5e8}

/* Números */
.stats{padding:40px 0 70px}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{text-align:center;padding:26px 10px;border-radius:16px;background:var(--card);border:1px solid var(--line)}
.stat b{display:block;font-size:40px;font-weight:800;color:var(--g)}
.stat span{color:var(--mut);font-weight:600;font-size:14px}

/* Preguntas */
.faq{padding:70px 0}
.faq .list{margin-top:28px;display:grid;gap:12px;max-width:820px}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px}
summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:12px}
summary::after{content:"+";color:var(--g);font-size:22px;line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--mut);margin-top:10px}

/* Final */
.soporte{padding:0 0 70px}
.soporte .box{max-width:820px;border:1px solid var(--line);border-radius:18px;padding:28px;background:rgba(79,209,139,.05)}
.soporte .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.btn.wa{background:#25D366;color:#0b1510}
.btn svg{width:20px;height:20px;flex:none}
.soporte .btn{justify-content:center;white-space:nowrap}
@media (max-width:480px){.soporte .box{padding:22px}.soporte .btn{width:100%;padding:14px 18px;font-size:15px}}
.final{padding:80px 0;text-align:center;background:radial-gradient(ellipse 60% 80% at 50% 100%,rgba(79,209,139,.16),transparent 70%)}
.final img{width:130px;margin:0 auto 22px}
.final .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:28px}
footer{border-top:1px solid rgba(79,209,139,.1);padding:28px 0;color:var(--mut);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* De la pizarra al vídeo */
.demo{padding:80px 0;background:linear-gradient(180deg,transparent,var(--bg2) 12%,var(--bg2) 88%,transparent)}
.demo-head{max-width:760px;margin:0 auto 46px;text-align:center}
.demo-head .kick{font-size:13px;font-weight:800;letter-spacing:.2em;color:var(--g);text-transform:uppercase;margin-bottom:10px}
.demo-head .sub{font-size:clamp(19px,2.2vw,24px);font-weight:800;color:var(--g);margin:12px 0 14px}
.dstep{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center;padding:30px 0}
.dstep+.dstep{border-top:1px solid rgba(79,209,139,.1)}
.dtext .k{font-size:13px;font-weight:800;letter-spacing:.2em;color:var(--g);text-transform:uppercase}
.dtext h3{font-size:clamp(22px,2.6vw,30px);margin:10px 0 12px}
.dtext p{color:#dbe9e0;font-weight:500}
.dtext .note{margin-top:12px;font-size:13px;color:var(--mut)}
.dtext a{color:var(--g);text-decoration:underline;text-underline-offset:2px}
.player,.screen{margin:0}
.player video{display:block;width:100%;height:auto;background:#0b120e;border-radius:14px;border:6px solid #05080a;box-shadow:0 26px 70px rgba(0,0,0,.55),0 0 0 1px #2a3a31}
.screen{position:relative;padding:14px 14px 22px;background:#05080a;border-radius:16px;box-shadow:0 26px 70px rgba(0,0,0,.55),0 0 0 1px #2a3a31,0 0 60px rgba(79,209,139,.12)}
.screen img{border-radius:6px;width:100%;height:auto}
.screen::after{content:"";position:absolute;left:50%;bottom:8px;width:44px;height:4px;margin-left:-22px;border-radius:2px;background:#1d2a23}

/* Revisión: menú móvil, portada, grupos de demostración */
.skip{position:absolute;left:-999px;top:8px;z-index:20;background:var(--g);color:#0b1510;padding:8px 14px;border-radius:8px;font-weight:700}
.skip:focus{left:8px}
.nav-end{display:flex;align-items:center;gap:10px}
.nav-end .btn{padding:9px 20px;font-size:14px;color:#0b1510}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--line);background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:#dff5e8;transition:transform .2s,opacity .2s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero .claim{font-size:clamp(18px,2vw,22px);font-weight:700;color:#e8f6ee;margin:-4px 0 12px}
.hero .note a{color:var(--g)}
.pill-lead{text-align:left;margin-top:10px}
a.card{text-decoration:none;display:block;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--g);transform:translateY(-2px)}
.card .more{display:inline-block;margin-top:14px;font-weight:700;font-size:14px;color:var(--g)}
.role{margin-top:26px;color:var(--mut);font-size:15px;max-width:760px}
.group{padding-top:20px;scroll-margin-top:76px}
.anchor{display:block;position:relative;top:-80px}
section[id],details[id]{scroll-margin-top:72px}
.group+.group{margin-top:30px;border-top:1px solid rgba(79,209,139,.18);padding-top:40px}
.gk{font-size:15px;font-weight:800;letter-spacing:.22em;color:var(--g);text-transform:uppercase}
.player figcaption{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;font-size:14px;color:var(--mut)}
.player figcaption b{color:#e8f6ee}
.zoom{flex:none;border:1.5px solid var(--line);background:transparent;color:#dff5e8;border-radius:999px;padding:8px 16px;font:700 14px Montserrat,system-ui,sans-serif;cursor:pointer}
.zoom:hover,.zoom:focus-visible{border-color:var(--g)}
.btn.small{margin-top:18px;padding:11px 22px;font-size:15px}
.more-feat{padding:70px 0}
.more-feat .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.more-feat .card img{border-radius:12px;margin-bottom:16px;aspect-ratio:16/10;object-fit:cover;width:100%}
.final .note{margin-top:14px;font-size:13px;color:var(--mut)}
:focus-visible{outline:2px solid var(--g);outline-offset:3px}

@media (max-width:420px){
  .nav-end .btn{padding:8px 14px;font-size:13px}
  .brand span{display:none}
}
@media (max-width:860px){
  .burger{display:flex}
  nav .links{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:0;background:rgba(15,23,18,.98);border-bottom:1px solid var(--line);padding:6px 20px 14px}
  nav .links.open{display:flex}
  nav .links a{padding:14px 4px;font-size:16px;color:#e8f6ee;border-bottom:1px solid rgba(79,209,139,.1)}
  nav .links a:last-child{border-bottom:0}
  .more-feat .grid{grid-template-columns:1fr}
  .hero .logo{width:160px}
  .hero{padding:40px 0 20px}
  .hero .wrap,.feat .wrap{grid-template-columns:1fr;gap:34px}
  .feat.rev .media{order:0}
  .devices{min-height:0;aspect-ratio:1.25}
  .pillars .grid{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:repeat(2,1fr)}
  .feat{padding:50px 0}
  .demo{padding:56px 0}
  .dstep{grid-template-columns:1fr;gap:20px;padding:24px 0}
  .player video{border-width:4px;border-radius:10px}
}

/* Selector de idioma ES / EN: visible siempre, también en el móvil (fuera del menú). */
.lang{display:flex;border:1.5px solid var(--line);border-radius:999px;padding:3px;gap:2px}
.lang a{display:block;min-width:36px;padding:6px 9px;border-radius:999px;text-align:center;text-decoration:none;font-weight:800;font-size:13px;letter-spacing:.04em;color:var(--mut)}
.lang a:hover{color:#fff}
.lang a[aria-current]{background:rgba(79,209,139,.16);color:var(--g)}
@media (max-width:420px){.nav-end{gap:6px}.lang a{min-width:30px;padding:6px 6px;font-size:12px}}
@media (max-width:360px){.nav-end .btn{padding:8px 11px;font-size:12px;white-space:nowrap}.brand img{width:32px}.burger{width:40px;height:40px}.lang a{min-width:28px;padding:6px 5px}}

/* Opiniones y «Me gusta» */
.opinion .op-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}
.like{display:inline-flex;align-items:center;gap:10px;border:2px solid var(--line);background:transparent;color:#dff5e8;border-radius:999px;padding:12px 20px;font:inherit;font-weight:800;font-size:16px;cursor:pointer;transition:border-color .15s,background .15s,transform .15s}
.like svg{width:20px;height:20px;flex:none;color:var(--g)}
.like:hover{border-color:var(--g)}
.like[aria-pressed="true"]{background:var(--g);border-color:var(--g);color:#0b1510;cursor:default}
.like[aria-pressed="true"] svg{color:#0b1510}
.like.pop{transform:scale(1.06)}
.like-n{min-width:1ch;padding-left:10px;border-left:1.5px solid currentColor;opacity:.9}
.like-n:empty{display:none}
.op-form{display:grid;gap:16px;margin-top:24px}
.op-form .f{display:grid;gap:8px;font-weight:700;font-size:15px;border:0;padding:0;margin:0;min-width:0}
.op-form legend{font-weight:700;font-size:15px;padding:0;margin-bottom:8px}
.op-form em{color:var(--g);font-style:normal}
.op-form small{color:var(--mut);font-weight:500;font-size:13px}
.op-form input[type=email],.op-form select,.op-form textarea{width:100%;font:inherit;font-weight:500;font-size:16px;color:#fff;background:#0c140f;border:1.5px solid var(--line);border-radius:10px;padding:12px 14px}
.op-form textarea{resize:vertical;min-height:120px}
.op-form select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--g) 50%),linear-gradient(135deg,var(--g) 50%,transparent 50%);background-position:calc(100% - 20px) 52%,calc(100% - 14px) 52%;background-size:6px 6px;background-repeat:no-repeat}
.op-form :is(input,select,textarea):focus-visible{outline:2px solid var(--g);outline-offset:1px;border-color:var(--g)}
.op-form .opts{display:flex;gap:22px;flex-wrap:wrap;font-weight:600}
.op-form .opts label,.op-form .chk{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;cursor:pointer}
.op-form input[type=radio],.op-form input[type=checkbox]{width:20px;height:20px;accent-color:var(--g);flex:none}
.op-form .extra{display:grid;gap:14px;padding:16px;border:1px dashed var(--line);border-radius:12px}
.op-form .extra[hidden]{display:none}
.op-form .hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.op-form .legal{color:var(--mut);font-size:13px}
.op-form .legal a{color:var(--g)}
.op-form .send{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.op-form .send .btn{border:0;cursor:pointer;font-family:inherit}
.op-form .send .btn[disabled]{opacity:.6;cursor:wait}
.op-form .status{font-weight:700;font-size:15px}
.op-form .status.ok{color:var(--g)}
.op-form .status.bad{color:#ff8a7a}
.op-form [aria-invalid="true"]{border-color:#ff8a7a!important}
@media (max-width:480px){.like{width:100%;justify-content:center}.op-form .send .btn{width:100%}}

/* Guía de uso (guia.html y en/guide.html) */
nav .links a[aria-current="page"]{color:var(--g)}
@media (min-width:861px) and (max-width:1100px){nav .links{gap:14px}nav .links a{font-size:13px}nav .nav-end .btn{padding:10px 18px;font-size:14px}}
.ghero{position:relative;padding:56px 0 30px}
.ghero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 70% at 15% 20%,rgba(79,209,139,.16),transparent 70%);pointer-events:none}
.ghero .wrap{position:relative}
.ghero h1{font-size:clamp(34px,5vw,56px);margin:14px 0 14px}
.ghero .lead{max-width:720px}
.gtoc{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}
.gtoc>div{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px}
.gtoc h2{font-size:19px;margin-bottom:10px}
.gtoc h2 a{text-decoration:none;color:var(--g)}
.gtoc ol,.gtoc ul{padding-left:20px;display:grid;gap:6px}
.gtoc li a{color:var(--mut);font-weight:600;font-size:15px;text-decoration:none}
.gtoc li a:hover{color:#fff}
.gpart{padding:50px 0;scroll-margin-top:64px}
.gpart>.wrap>h2{margin-bottom:10px}
.gpart>.wrap>.lead{max-width:760px;margin-bottom:26px}
.gstep{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:30px;align-items:start;padding:28px 0;border-top:1px solid rgba(79,209,139,.12);scroll-margin-top:70px}
.gnum{display:inline-block;background:rgba(79,209,139,.16);color:var(--g);font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:5px 12px;margin-bottom:10px}
.gstep h3,.gsec h3{font-size:22px;margin-bottom:12px}
.gstep ul,.gsec ul{padding-left:20px;display:grid;gap:8px;color:var(--mut);font-weight:500}
.gstep li b,.gsec li b{color:#fff}
.gshot{display:block;border-radius:12px;overflow:hidden;border:1px solid var(--line);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.gshot img{width:100%}
.ggrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.gsec{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;scroll-margin-top:70px}
.gsec>p{color:var(--mut);font-weight:500;margin-bottom:12px}
.gsec .gshot{margin:6px 0 16px;box-shadow:none}
.gsec .gshot img{max-height:420px;object-fit:contain;background:var(--bg)}
.gend{padding:50px 0 80px;text-align:center}
.gend .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:24px}
@media (max-width:860px){.gtoc,.ggrid,.gstep{grid-template-columns:1fr}.gstep{gap:18px}.ghero{padding:36px 0 10px}}