:root{
  --rojo:#E8452C;--cafe:#6B4A1E;--gris:#8A8D8F;--azul:#3BA9E0;--verde:#2fa35a;
  --tinta:#1d2a33;--tinta2:#2c3c47;--texto:#26313a;--suave:#6a757d;--linea:#e2e7ea;
  --fondo:#f5f7f8;--panel:#fff;--burbuja:#eef3f6;--yo:#1d2a33;--yo-txt:#fff;
  --r:16px;--sombra:0 12px 40px rgba(18,32,44,.18);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --texto:#e6ecef;--suave:#9aa6ad;--linea:#2c3a44;--fondo:#11191f;--panel:#17222a;--burbuja:#21303a;--yo:#3BA9E0;--yo-txt:#06141c;
}}
:root[data-theme="dark"]{--texto:#e6ecef;--suave:#9aa6ad;--linea:#2c3a44;--fondo:#11191f;--panel:#17222a;--burbuja:#21303a;--yo:#3BA9E0;--yo-txt:#06141c}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Outfit,system-ui,-apple-system,Segoe UI,sans-serif;color:var(--texto);background:var(--fondo);line-height:1.5}
img{max-width:100%;display:block}
a{color:var(--azul)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Marca: los cuatro triángulos de Enelcom */
.tris,.avatar{display:inline-flex;gap:3px;align-items:center}
.tris i,.avatar i{width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent}
.t1{border-bottom:10px solid var(--rojo)}.t2{border-top:10px solid var(--cafe)}.t3{border-bottom:10px solid var(--gris)}.t4{border-top:10px solid var(--azul)}

.barra{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;background:var(--tinta);color:#fff}
.marca{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.marca .nom{font-weight:700;font-size:1.25rem;letter-spacing:.3px}
.marca .de{display:flex;align-items:center;gap:6px;font-size:.75rem;color:#b7c2c9}
.barra nav{display:flex;gap:18px}.barra nav a{color:#d6dee3;text-decoration:none;font-size:.95rem}
.barra nav a:hover{color:#fff}

.portada{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);gap:40px;align-items:center;padding:48px max(16px,calc((100vw - 1180px)/2)) 56px;min-height:calc(100vh - 56px);color:#fff;overflow:hidden}
.portada-fondo{position:absolute;inset:0;background:linear-gradient(100deg,rgba(17,27,35,.94) 0%,rgba(17,27,35,.80) 45%,rgba(17,27,35,.45) 100%),url(hero.webp) center/cover;z-index:-1}
.pre{color:var(--azul);font-weight:600;letter-spacing:.4px;text-transform:uppercase;font-size:.8rem;margin:0 0 10px}
.portada h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.08;margin:0 0 16px;font-weight:700}
.portada h1 span{color:#7fd0f5}
.lead{font-size:1.08rem;color:#d7e0e5;max-width:560px}
.pasos{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:22px 0 0}
.pasos li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 14px 6px 6px;font-size:.92rem}
.pasos b{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--rojo);margin-right:6px;font-size:.8rem}

/* Chat */
.chat{background:var(--panel);color:var(--texto);border-radius:22px;box-shadow:var(--sombra);display:flex;flex-direction:column;height:min(680px,calc(100vh - 120px));min-height:520px;overflow:hidden}
.chat-cab{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--linea)}
.chat-cab .avatar{background:var(--tinta);border-radius:12px;padding:10px 8px}
.chat-cab small{display:block;color:var(--suave);font-size:.78rem}
.punto{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--verde);margin-right:3px}
.chat-msgs{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;overscroll-behavior:contain}
.m{max-width:88%;padding:10px 13px;border-radius:16px;font-size:.96rem;white-space:pre-wrap;word-wrap:break-word;animation:entra .25s ease-out}
.m.ia{background:var(--burbuja);border-bottom-left-radius:4px;align-self:flex-start}
.m.yo{background:var(--yo);color:var(--yo-txt);border-bottom-right-radius:4px;align-self:flex-end}
.m.tarjeta{white-space:normal;max-width:100%;width:100%;background:var(--panel);border:1px solid var(--linea)}
@keyframes entra{from{opacity:0;transform:translateY(6px)}to{opacity:1}}
.escribiendo span{display:inline-block;width:7px;height:7px;margin:0 2px;border-radius:50%;background:var(--suave);animation:b 1s infinite}
.escribiendo span:nth-child(2){animation-delay:.15s}.escribiendo span:nth-child(3){animation-delay:.3s}
@keyframes b{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chat-acciones{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px 8px}
.chip{border:1px solid var(--linea);background:var(--panel);color:var(--texto);border-radius:999px;padding:7px 12px;font:inherit;font-size:.88rem;cursor:pointer}
.chip:hover,.chip:focus-visible{border-color:var(--azul);outline:none}
.chip.fuerte{background:var(--tinta);color:#fff;border-color:var(--tinta)}
.chat-entrada{display:flex;align-items:flex-end;gap:8px;padding:10px 12px;border-top:1px solid var(--linea)}
.chat-entrada textarea{flex:1;resize:none;border:1px solid var(--linea);border-radius:14px;padding:10px 12px;font:inherit;background:var(--fondo);color:var(--texto);max-height:120px}
.chat-entrada button,.clip{flex:none;width:42px;height:42px;border-radius:50%;border:0;display:grid;place-items:center;cursor:pointer;font-size:1.05rem}
.chat-entrada button{background:var(--rojo);color:#fff}
.clip{background:var(--burbuja)}

/* Formularios dentro del chat */
.tarjeta h4{margin:0 0 8px;font-size:1rem}
.campos{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.campos label{display:flex;flex-direction:column;font-size:.8rem;color:var(--suave);gap:3px}
.campos label.ancho{grid-column:1/-1}
.campos input,.campos select{font:inherit;font-size:.95rem;padding:8px 10px;border:1px solid var(--linea);border-radius:10px;background:var(--fondo);color:var(--texto);width:100%}
.campos input.duda{border-color:#e0a030;background:#fff8ea;color:#26313a}
.campos .chk{flex-direction:row;align-items:flex-start;gap:8px;color:var(--texto);font-size:.85rem;grid-column:1/-1}
.campos .chk input{width:auto;margin-top:3px}
.nota{font-size:.8rem;color:var(--suave);margin:6px 0 0}
.aviso{font-size:.84rem;background:#fff4e5;color:#7a4b00;border-radius:10px;padding:7px 10px;margin:0 0 8px}
.fila-btn{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.btn{font:inherit;font-weight:600;border:0;border-radius:12px;padding:10px 16px;background:var(--rojo);color:#fff;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.btn.sec{background:var(--burbuja);color:var(--texto)}
.btn.verde{background:#25a35a}
.btn:disabled{opacity:.6;cursor:wait}
.previa{display:flex;gap:10px;align-items:center}
.previa img{width:72px;height:72px;object-fit:cover;border-radius:10px}
.previa .pdf{width:72px;height:72px;border-radius:10px;background:var(--burbuja);display:grid;place-items:center;font-weight:700;color:var(--rojo)}
.cifras{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0}
.cifras div{background:var(--burbuja);border-radius:12px;padding:8px 10px}
.cifras small{display:block;color:var(--suave);font-size:.75rem}
.cifras b{font-size:1.15rem}
.cifras .ok b{color:var(--verde)}

/* Secciones */
section{padding:56px max(16px,calc((100vw - 1180px)/2))}
section h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:0 0 18px}
.sub{color:var(--suave);margin-top:-8px}
.tarjetas{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tarjetas article{background:var(--panel);border:1px solid var(--linea);border-radius:var(--r);padding:22px}
.tarjetas h3{margin:10px 0 6px}.tarjetas p{margin:0;color:var(--suave)}
.ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:1.3rem}
.ic.azul{background:rgba(59,169,224,.15)}.ic.rojo{background:rgba(232,69,44,.13)}.ic.cafe{background:rgba(107,74,30,.15)}
.centro{text-align:center;margin-top:24px}
.galeria{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:12px}
.galeria figure{margin:0;position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:1}
.galeria figure:first-child{aspect-ratio:auto}
.galeria img{width:100%;height:100%;object-fit:cover}
.galeria figcaption{position:absolute;left:10px;bottom:10px;background:rgba(17,27,35,.75);color:#fff;font-size:.82rem;padding:3px 10px;border-radius:999px}
.como ol{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;list-style:none;counter-reset:p}
.como li{counter-increment:p;background:var(--panel);border:1px solid var(--linea);border-radius:var(--r);padding:18px;color:var(--suave)}
.como li::before{content:counter(p);display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--azul);color:#fff;font-weight:700;margin-bottom:8px}
.como li b{color:var(--texto);display:block}
.pie{background:var(--tinta);color:#c9d3d9;display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:36px max(16px,calc((100vw - 1180px)/2))}
.pie a{color:#fff}.pie .dir{font-size:.85rem;color:#9fb0ba}
.pie .legal{grid-column:1/-1;font-size:.8rem;color:#8fa1ab;border-top:1px solid #2f414d;padding-top:14px}

@media (max-width:900px){
  .barra nav{display:none}
  .portada{grid-template-columns:1fr;gap:20px;padding-top:18px;min-height:0}
  .portada-texto{order:2}
  .portada h1{font-size:1.75rem}
  .lead{font-size:1rem}
  .chat{order:1;height:calc(100svh - 90px);min-height:480px}
  .tarjetas,.como ol{grid-template-columns:1fr}
  .galeria{grid-template-columns:1fr 1fr}
  .galeria figure:first-child{grid-column:1/-1;aspect-ratio:16/9}
  .pie{grid-template-columns:1fr}
  .campos{grid-template-columns:1fr 1fr}
}
@media (max-width:380px){.campos{grid-template-columns:1fr}}