/* Ardia Enterprise — landing
   Same layout/styles as the reference design; palette taken from the Ardia
   platform (primary #3d3df4, primary-container #5254f6, cyan #00ccf9 / #4cd6ff). */
:root{
  --bg:#211b66;
  --bg-2:#2a2378;
  --panel:#2f2885;
  --panel-2:#372f96;
  --text:#f8f7ff;
  --muted:#c4c0ec;
  --line:rgba(255,255,255,.13);
  --blue:#3d3df4;
  --cyan:#00ccf9;
  --cyan-2:#4cd6ff;
  --violet:#7d5cff;
  --pink:#b48cff;
  --lilac:#d6d2ff;
  --green:#4be0b3;
  --white:#ffffff;
  --shadow:0 24px 80px rgba(12,8,48,.35);
  --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(125,92,255,.45), transparent 38%),
    radial-gradient(circle at 88% 8%, rgba(61,61,244,.45), transparent 34%),
    radial-gradient(circle at 50% 100%, rgba(125,92,255,.25), transparent 45%),
    var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
body.modal-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan-2);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;padding:10px 14px;border-radius:10px;background:var(--blue);font-weight:700;transition:top .2s}
.skip-link:focus{top:12px}
.wrap{width:min(1180px,calc(100% - 40px));margin:0 auto}
.nav{
  position:sticky;top:0;z-index:20;
  background:rgba(33,27,102,.78);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--cyan),var(--blue) 48%,var(--violet) 78%,var(--pink));box-shadow:0 0 38px rgba(61,61,244,.42);flex-shrink:0}
.brand-logo{height:24px;width:auto;display:block}
.brand small{font-weight:600;letter-spacing:.08em;color:var(--muted);font-size:12px}
.nav-links{display:flex;align-items:center;gap:28px;color:#dbe2f6;font-size:14px}
.nav-links a:not(.btn):hover{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 18px;border-radius:12px;font-weight:750;font-size:15px;border:1px solid transparent;transition:.2s ease;cursor:pointer;background:none}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--violet));box-shadow:0 12px 34px rgba(61,61,244,.32);color:#fff}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.1)}
.btn-secondary{border-color:var(--line);background:rgba(255,255,255,.04)}
.btn-secondary:hover{background:rgba(255,255,255,.08)}
.btn-block{width:100%}
.hero{padding:100px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 10px;border:1px solid rgba(0,204,249,.24);border-radius:999px;background:rgba(0,204,249,.07);color:#c9f4ff;font-size:13px;font-weight:700}
.dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 18px var(--cyan)}
h1{font-size:clamp(48px,6.2vw,84px);line-height:.98;letter-spacing:-.055em;margin:24px 0 26px;max-width:780px}
.gradient{background:linear-gradient(90deg,#fff 10%,var(--lilac) 38%,var(--cyan-2) 62%,var(--pink) 94%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:19px;color:#c0c8e0;max-width:690px;margin:0 0 32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.micro{display:flex;gap:24px;flex-wrap:wrap;margin-top:34px;color:var(--muted);font-size:13px}
.micro span{display:flex;align-items:center;gap:8px}
.check{color:var(--green)}
.hero-visual{position:relative}
@media (min-width:1360px){.hero-visual{margin-right:-70px}}
.glow{position:absolute;inset:10% 6%;background:radial-gradient(circle,rgba(125,92,255,.45),transparent 62%);filter:blur(30px);pointer-events:none}
.hero-shot{position:relative;display:block;width:100%;height:auto;filter:drop-shadow(0 30px 50px rgba(12,8,48,.5))}
section{padding:88px 0}
.section-kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--cyan-2);font-weight:800;margin-bottom:12px}
h2{font-size:clamp(34px,4.4vw,56px);line-height:1.04;letter-spacing:-.04em;margin:0 0 20px;max-width:860px}
.lead{font-size:18px;color:var(--muted);max-width:760px}
.problem-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:start;margin-top:44px}
.question{padding:30px;border:1px solid rgba(61,61,244,.32);border-radius:var(--radius);background:linear-gradient(135deg,rgba(61,61,244,.12),rgba(0,204,249,.05));font-size:28px;line-height:1.15;font-weight:800;letter-spacing:-.03em;position:sticky;top:110px}
.question span{display:block;color:#9ba6ca;font-size:14px;line-height:1.5;font-weight:500;margin-top:18px;letter-spacing:0}
.chaos{display:grid;gap:12px}
.chaos-item{display:flex;gap:15px;align-items:flex-start;padding:18px;border-bottom:1px solid var(--line)}
.num{font:700 11px/1 ui-monospace,monospace;color:var(--cyan-2);margin-top:5px}
.chaos-item h3{display:block;margin:0 0 4px;font-size:16px}.chaos-item p{margin:0;color:var(--muted);font-size:14px}
.layer-section{background:linear-gradient(180deg,rgba(255,255,255,.025),transparent)}
.layers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:38px}
.layers-3{grid-template-columns:repeat(3,1fr)}
.layer{padding:25px;border-radius:20px;border:1px solid var(--line);background:rgba(255,255,255,.025);min-height:252px;position:relative;overflow:hidden}
.layer:after{content:"";position:absolute;width:130px;height:130px;border-radius:50%;right:-50px;top:-50px;background:radial-gradient(circle,rgba(61,61,244,.26),transparent 70%)}
.layer-featured{border-color:rgba(0,204,249,.32);background:linear-gradient(160deg,rgba(0,204,249,.08),rgba(61,61,244,.08))}
.layer-featured:after{background:radial-gradient(circle,rgba(0,204,249,.30),transparent 70%)}
.layer-icon{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,rgba(0,204,249,.16),rgba(82,84,246,.22));border:1px solid rgba(76,214,255,.25);display:grid;place-items:center;margin-bottom:20px;font-size:18px}
.layer h3{margin:0 0 8px;font-size:19px}.layer p{margin:0;color:var(--muted);font-size:14px}
.layer ul{padding:0;margin:18px 0 0;list-style:none;color:#dce2f4;font-size:12px}.layer li{margin:7px 0}
.quote{margin:34px 0 0;padding:26px 30px;border-left:3px solid var(--cyan);border-radius:0 18px 18px 0;background:linear-gradient(90deg,rgba(0,204,249,.07),transparent)}
.quote p{margin:0;font-size:22px;line-height:1.35;font-weight:700;letter-spacing:-.02em;max-width:900px}
.quote cite{display:block;margin-top:10px;font-style:normal;font-size:13px;color:var(--muted)}
.compare{margin-top:42px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.02)}
.compare-head,.compare-row{display:grid;grid-template-columns:1.15fr 1fr 1.15fr}
.compare-head div{padding:18px 20px;font-size:12px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);background:rgba(255,255,255,.025)}
.compare-row div{padding:19px 20px;border-top:1px solid var(--line);font-size:14px}.compare-row div:nth-child(2){color:#aeb6d0}.compare-row div:last-child{color:#f5f7ff;background:rgba(61,61,244,.06)}
.compare-row strong{font-weight:700}
.t-short{display:none}
.models{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.model-chip{padding:8px 11px;border-radius:10px;border:1px solid var(--line);font-size:12px;color:#c5cce2;background:rgba(255,255,255,.03)}
.org-card{margin-top:40px;padding:32px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(135deg,rgba(55,47,150,.9),rgba(38,32,118,.92));box-shadow:var(--shadow)}
.org-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.org-top h3{font-size:26px;margin:0}.org-top p{margin:4px 0 0;color:var(--muted)}
.roles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.role{padding:17px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.025)}.role b{display:block}.role small{color:var(--muted)}.role-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.role-tags span{font-size:9px;padding:4px 6px;border-radius:7px;background:rgba(61,61,244,.18);color:var(--lilac)}
.permanence{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.stack{display:grid;gap:10px}.stack-card{padding:17px 18px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025);display:flex;align-items:center;justify-content:space-between}.stack-card span{color:var(--muted);font-size:13px}.stack-card b{font-size:13px}.stay{color:#86efcc!important}.leave{color:var(--lilac)!important}
.demo-flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:38px}.step{position:relative;padding:24px;border:1px solid var(--line);border-radius:18px;min-height:190px;background:rgba(255,255,255,.025)}.step i{font-style:normal;font-size:12px;color:var(--cyan-2);font-weight:800}.step h3{font-size:18px;margin:12px 0 8px}.step p{font-size:13px;color:var(--muted);margin:0}.step:not(:last-child):after{content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:#a59fe0;z-index:2;background:var(--bg);padding:3px}
.faq{display:grid;gap:10px;margin-top:34px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);transition:border-color .2s,background .2s}
.faq-item[open]{border-color:rgba(61,61,244,.35);background:rgba(61,61,244,.06)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;line-height:1;color:var(--cyan-2);transition:transform .2s}
.faq-item[open] summary:after{transform:rotate(45deg)}
.faq-item p{margin:0;padding:0 22px 20px;color:var(--muted);font-size:15px}
.final{padding:110px 0 120px;text-align:center}.final-box{padding:60px 28px;border:1px solid rgba(61,61,244,.30);border-radius:30px;background:radial-gradient(circle at 50% 0%,rgba(61,61,244,.22),transparent 45%),linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.015));box-shadow:var(--shadow)}.final h2{margin-left:auto;margin-right:auto;max-width:900px}.final p{max-width:700px;margin:0 auto 28px;color:var(--muted);font-size:18px}
.noscript{margin-top:18px!important;font-size:15px!important}.noscript a{color:var(--cyan-2);text-decoration:underline}
footer{border-top:1px solid var(--line);padding:28px 0;color:#aba6dc;font-size:12px}.footer-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}.footer-inner a{color:#b7c0db}.footer-inner a:hover{color:#fff}
.footer-inner .brand-logo{height:16px}

/* ── Reveal on scroll (only when JS is on; respects reduced motion) ── */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.is-visible{opacity:1;transform:none}

/* ── Modal «Solicitar demo» ── */
.modal{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,11,52,.66);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fade .25s ease}
.modal-card{position:relative;width:min(560px,100%);max-height:calc(100vh - 40px);overflow-y:auto;padding:34px;border-radius:26px;
  background:radial-gradient(circle at 20% 0%,rgba(125,92,255,.40),transparent 45%),radial-gradient(circle at 100% 100%,rgba(61,61,244,.30),transparent 40%),linear-gradient(180deg,#342c8f,#261f76);
  border:1px solid rgba(255,255,255,.14);box-shadow:0 40px 120px rgba(0,0,0,.55),0 0 0 1px rgba(61,61,244,.15);animation:pop .35s cubic-bezier(.2,.9,.3,1.2)}
.modal-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:22px;line-height:1;cursor:pointer;color:var(--muted);transition:.2s}
.modal-close:hover{color:#fff;background:rgba(255,255,255,.1)}
.modal-title{font-size:clamp(26px,3.4vw,34px);margin:18px 0 10px;letter-spacing:-.035em;line-height:1.08}
.modal-title:focus{outline:none}
.modal-lead{color:var(--muted);font-size:15px;margin:0 0 22px}
.field{display:grid;gap:7px;margin-bottom:16px}
.field label{font-size:13px;font-weight:700;color:#dce2f4}
.field label span{color:var(--cyan-2)}.field .optional{color:var(--muted);font-weight:500}
.field input,.field textarea{width:100%;padding:13px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.14);background:rgba(20,16,70,.45);color:#fff;font:inherit;font-size:15px;transition:border-color .2s,box-shadow .2s;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#958fd0}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(61,61,244,.22)}
.field.has-error input{border-color:#ff7aa8;box-shadow:0 0 0 4px rgba(255,122,168,.14)}
.field-error{font-size:12px;color:#ff9dbf;min-height:0}
.interest-chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{padding:7px 11px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:12px;font-weight:600;color:#c5cce2;cursor:pointer;transition:.2s}
.chip:hover{border-color:rgba(76,214,255,.4);color:#fff}
.chip.is-on{background:rgba(0,204,249,.14);border-color:rgba(0,204,249,.45);color:#fff}
.chip.is-on:before{content:"✓ ";color:var(--cyan-2)}
.form-note{margin:12px 0 0;text-align:center;font-size:12px;color:#a9a4dc}
.spinner{display:none;width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite}
.is-loading .spinner{display:inline-block}.is-loading .btn-label{opacity:.8}
.is-loading{pointer-events:none}
.success{text-align:center;padding:10px 0 4px}
.success .modal-lead{max-width:420px;margin-left:auto;margin-right:auto}
.success-orb{position:relative;width:104px;height:104px;margin:6px auto 4px;border-radius:50%;display:grid;place-items:center;
  background:radial-gradient(circle,rgba(61,61,244,.35),rgba(0,204,249,.10) 60%,transparent 70%)}
.success-orb svg{width:84px;height:84px;overflow:visible}
.success-ring{fill:none;stroke:var(--cyan);stroke-width:2.5;stroke-dasharray:151;stroke-dashoffset:151;animation:draw .7s ease forwards}
.success-check{fill:none;stroke:#fff;stroke-width:3.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:40;stroke-dashoffset:40;animation:draw .45s .55s ease forwards}
.spark{position:absolute;left:50%;top:50%;width:8px;height:8px;border-radius:50%;opacity:0;animation:burst 1s .5s ease-out forwards}
.s1{background:var(--cyan);--x:-62px;--y:-30px}.s2{background:var(--pink);--x:58px;--y:-38px}.s3{background:var(--green);--x:-50px;--y:44px}
.s4{background:var(--lilac);--x:64px;--y:30px}.s5{background:var(--cyan-2);--x:4px;--y:-68px}.s6{background:var(--violet);--x:-8px;--y:66px}
.success-next{list-style:none;padding:0;margin:4px auto 26px;display:grid;gap:8px;max-width:360px;text-align:left}
.success-next li{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:14px;color:#dce2f4;opacity:0;animation:rise .45s ease forwards}
.success-next li:nth-child(1){animation-delay:.9s}.success-next li:nth-child(2){animation-delay:1.02s}.success-next li:nth-child(3){animation-delay:1.14s}
.success-next b{width:24px;height:24px;border-radius:8px;display:grid;place-items:center;font-size:12px;background:linear-gradient(135deg,var(--blue),var(--violet));flex-shrink:0}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.97)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes burst{0%{opacity:1;transform:translate(-50%,-50%) scale(.4)}100%{opacity:0;transform:translate(calc(-50% + var(--x)),calc(-50% + var(--y))) scale(1)}}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
}
@media (max-width:980px){.nav-links a:not(.btn){display:none}.hero-grid,.problem-grid,.permanence{grid-template-columns:1fr}.hero-visual{margin-right:0}.layers,.roles,.demo-flow{grid-template-columns:repeat(2,1fr)}.layers-3{grid-template-columns:1fr}.question{position:relative;top:auto}}
@media (max-width:640px){.wrap{width:min(100% - 26px,1180px)}.nav-inner{height:66px}.brand small{display:none}.nav .btn{padding:10px 13px;font-size:13px}.hero{padding-top:62px}.hero p,.lead{font-size:16px}.layers,.roles,.demo-flow{grid-template-columns:1fr}.org-card{padding:20px}.org-top{display:block}.step:not(:last-child):after{display:none}section{padding:66px 0}.final{padding:80px 0}.footer-inner{display:block}.footer-inner div:last-child{margin-top:10px}.quote p{font-size:18px}.modal-card{padding:26px 20px}}
.notfound-title{font-size:clamp(40px,6vw,72px);margin:10px auto 18px}

/* Comparativa en móvil/tableta: tarjetas pequeñas con el resumen, sin scroll horizontal */
@media (max-width:980px){
  .compare{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;border:0;border-radius:0;background:none;overflow:visible}
  .compare-head{display:none}
  .compare-row{display:flex;flex-direction:column;gap:8px;padding:14px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.035)}
  .compare-row div{padding:0;border:0;font-size:13px;line-height:1.35}
  .compare-row div:first-child{font-size:14px;color:#fff}
  .compare-row div:nth-child(2),.compare-row div:last-child{display:flex;flex-direction:column;gap:2px;padding:8px 10px;border-radius:10px}
  .compare-row div:nth-child(2){background:rgba(255,255,255,.04)}
  .compare-row div:last-child{background:rgba(125,92,255,.20)!important;border:1px solid rgba(125,92,255,.35)}
  .compare-row div:nth-child(2):before,.compare-row div:last-child:before{font-size:9px;font-weight:800;letter-spacing:.1em;text-transform:uppercase}
  .compare-row div:nth-child(2):before{content:"IA generalista";color:var(--muted)}
  .compare-row div:last-child:before{content:"Ardia";color:var(--cyan-2)}
  .t-long{display:none}.t-short{display:inline}
}
@media (max-width:640px){.compare{grid-template-columns:1fr}}