:root{
  --bg:#262625; --bg2:#2d2d2b; --panel:#323230; --line:#454542; --text:#f4f4f2; --muted:#aaaaa4;
  --accent:#ffffff; --accent-ink:#2d2d2b; --warn:#f5b84b; --bad:#ff6b6b; --ok:#34d399;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace; --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --r:14px; --gut:16px;
}
@media (prefers-color-scheme:light){:root[data-theme="auto"]{--bg:#f6f9fb;--bg2:#fff;--panel:#fff;--line:#d7e1e8;--text:#0b1620;--muted:#506372;--accent:#0891b2;--accent-ink:#fff}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 var(--sans);
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:44px 44px;background-position:-1px -1px;background-attachment:fixed}
body::before{content:"";position:fixed;inset:0;background:radial-gradient(ellipse at 50% -10%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 60%),linear-gradient(var(--bg) 0,color-mix(in srgb,var(--bg) 86%,transparent) 100%);pointer-events:none;z-index:-1}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 12px;border-radius:8px;z-index:10}
.skip:focus{left:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
h1,h2{line-height:1.15;margin:0;letter-spacing:-.02em}
h1{font-size:1.55rem} h2{font-size:1.45rem}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px var(--gut);max-width:1080px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em}
.mark{width:22px;height:22px;border:2px solid var(--accent);border-radius:6px;position:relative;box-shadow:0 0 18px color-mix(in srgb,var(--accent) 35%,transparent)}
.mark::after{content:"";position:absolute;inset:5px;background:var(--accent);border-radius:2px}
.brand-logo{height:34px;width:auto;display:block}
.powered{font:12px var(--mono);color:var(--muted)}

main{max-width:1080px;margin:0 auto;padding:0 var(--gut) 40px;display:grid;gap:28px}
.eyebrow{font:600 11px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
.lead{color:var(--muted);margin:10px 0 18px;max-width:52ch}

.hero{display:grid;gap:20px;padding-top:8px}
.card{position:relative;background:linear-gradient(160deg,var(--panel),var(--bg2));border:1px solid var(--line);border-radius:20px;padding:20px;display:grid;gap:16px;overflow:hidden}
.card::before{content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border:1px solid color-mix(in srgb,var(--accent) 25%,transparent);border-radius:50%}
.card::after{content:"";position:absolute;right:-20px;top:-20px;width:100px;height:100px;border:1px solid color-mix(in srgb,var(--accent) 18%,transparent);border-radius:50%}
.avatar{width:72px;height:72px;border-radius:18px;background:var(--bg2);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);display:grid;place-items:center;font:700 26px var(--mono);color:var(--accent);overflow:hidden}
.avatar img{width:100%;height:100%;object-fit:cover}
.role{color:var(--muted)}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.qr{margin:0;display:flex;align-items:center;gap:12px}
.qr img{background:#fff;padding:6px;border-radius:10px}
.qr figcaption{font:12px var(--mono);color:var(--muted)}
.pitch{align-self:center}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border-radius:12px;border:1px solid var(--line);background:var(--panel);color:var(--text);font:600 15px var(--sans);text-decoration:none;cursor:pointer}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;border-style:dashed}
.btn:disabled{opacity:.6;cursor:wait}

.chat{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:16px;display:grid;gap:12px;scroll-margin-top:12px}
.chat-head{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.pill{font:11px var(--mono);padding:4px 9px;border-radius:999px;border:1px solid var(--warn);color:var(--warn)}
.log{display:grid;gap:14px;max-height:min(58vh,520px);min-height:160px;overflow-y:auto;padding:4px 2px;scroll-behavior:smooth}
.msg{display:grid;gap:4px;max-width:70ch;animation:in .18s ease-out}
.msg .who{font:600 10.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.msg .body{white-space:pre-wrap;overflow-wrap:anywhere;padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg2)}
.msg.user .body{background:color-mix(in srgb,var(--accent) 12%,var(--bg2));border-color:color-mix(in srgb,var(--accent) 35%,transparent)}
.msg.user{justify-self:end}
.msg.user .who{text-align:right}
.msg.bot .who{color:var(--accent)}
.src{font:11px var(--mono);color:var(--muted)}
.src b{color:var(--accent);font-weight:600}
.msg.sys .body{border-style:dashed;color:var(--muted);font-size:14px}
.typing .body{display:flex;gap:5px;align-items:center;min-height:42px}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:b 1s infinite ease-in-out}
.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}
@keyframes in{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:999px;padding:8px 12px;font:13px var(--sans);cursor:pointer;min-height:36px}
.chip:hover{color:var(--text);border-color:var(--accent)}
.composer{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:end}
textarea,input{width:100%;background:var(--bg2);color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font:16px var(--sans);resize:none}
textarea:focus,input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 18%,transparent)}
.fine{font-size:12px;color:var(--muted)}

.block{display:grid;gap:12px}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.svc{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px;display:grid;gap:6px}
.svc h3{margin:0;font-size:1rem}
.svc p{color:var(--muted);font-size:14px}
.ia .svc{border-color:color-mix(in srgb,var(--accent) 30%,transparent);background:linear-gradient(160deg,color-mix(in srgb,var(--accent) 7%,var(--panel)),var(--panel))}
.form form{display:grid;gap:12px;max-width:560px}
.field{display:grid;gap:6px}
.field label{font-size:14px;color:var(--muted)}
.opt{opacity:.7}
.trap{position:absolute;left:-9999px}
.status{min-height:1.4em;font-size:14px}
.status.ok{color:var(--ok)}.status.err{color:var(--bad)}
.foot{max-width:1080px;margin:0 auto;padding:0 var(--gut) 32px;color:var(--muted);font:12px var(--mono)}

@media (min-width:860px){
  :root{--gut:28px}
  h1{font-size:1.9rem}
  .hero{grid-template-columns:minmax(320px,420px) 1fr;gap:36px;align-items:stretch}
  .pitch h2{font-size:2.5rem}
  .chat{padding:22px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}

/* ---------- secciones de información de la empresa ---------- */
.brand-logo{height:40px}
.why{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.why .svc h3{display:flex;gap:8px;align-items:baseline}
.tag{margin-left:8px;font:600 10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--warn);border:1px solid var(--warn);border-radius:999px;padding:2px 7px;white-space:nowrap}
.about p{color:var(--muted);max-width:70ch}
.clients{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.clients li{border:1px solid var(--line);border-radius:999px;padding:8px 14px;color:var(--text);background:var(--panel);font-size:14px}
.contact-list{display:grid;gap:10px;list-style:none;margin:0;padding:0}
.contact-list a{color:var(--text)}
.contact-list span{color:var(--muted);font-size:13px;display:block}