/* EcoMaster MK4 · Hidrodem — tema «agua profunda»: canvas 3D fijo detrás y paneles de contenido encima */
:root{
  --ink:#06111b; --ink2:#0b1c2a; --panel:rgba(8,22,34,.78); --panelS:rgba(8,22,34,.92);
  --steel:#6189a0; --teal:#5cb6c0; --cyan:#3fd0ff; --amber:#ffb547; --red:#e5484d;
  --txt:#d8e4ec; --mut:#9fb3c1; --line:rgba(255,255,255,.12); --lineS:rgba(92,182,192,.45);
  --save:#1f9d55; --cancel:#d33b3b;
  --pad:clamp(16px,4vw,48px); --max:1240px; --r:18px;
  --f-h:'Barlow Condensed',system-ui,sans-serif; --f-t:'Barlow',system-ui,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;background:var(--ink)}
body{margin:0;background:var(--ink);color:var(--txt);font:18px/1.62 var(--f-t);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
button,select,input,textarea{font:inherit;color:inherit}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
h1,h2,h3,.h3{font-family:var(--f-h);font-weight:800;margin:0;line-height:1;letter-spacing:-.005em;color:#fff}
h1{font-size:clamp(40px,5.4vw,82px);text-transform:uppercase;max-width:19ch;margin-bottom:20px;text-shadow:0 4px 40px rgba(0,0,0,.6)}
h2{font-size:clamp(34px,4.6vw,60px);text-transform:uppercase;margin-bottom:18px}
h3,.h3{font-size:clamp(22px,2.2vw,28px);margin:28px 0 10px}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:6px}
.saltar{position:absolute;left:-9999px;top:8px;z-index:100;background:#fff;color:#000;padding:10px 14px;border-radius:8px}
.saltar:focus{left:8px}
.wrap{max-width:var(--max);margin:auto;padding:0 var(--pad);position:relative}
.kicker{font:700 14px/1.2 var(--f-t);letter-spacing:.2em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
.lead{font-size:clamp(18px,1.6vw,22px);color:#c6d6e0;max-width:58ch}
.nota{font-size:15px;color:var(--mut)}
.respuesta{font-size:clamp(18px,1.5vw,21px);color:#e9f1f6;max-width:68ch}
.respuesta.resumen{border-left:4px solid var(--teal);padding:4px 0 4px 18px}

/* Lienzo 3D */
#mk4-canvas{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:block;pointer-events:none}
.velo{position:fixed;inset:0;z-index:0;pointer-events:none;background:radial-gradient(120% 80% at 70% 40%,transparent 30%,rgba(3,9,15,.55) 100%)}
html.no3d #mk4-canvas,html.no3d .velo{display:none}
html.no3d body{background:radial-gradient(90% 60% at 80% 0%,#12324a 0%,var(--ink) 60%) fixed}
html.no3d .intro{background:linear-gradient(90deg,rgba(6,17,27,.96) 0%,rgba(6,17,27,.7) 45%,rgba(6,17,27,.1) 100%),url(../img/escena-intro.webp) 70% 50%/cover no-repeat}
@media (max-width:760px){html.no3d .intro{background:linear-gradient(180deg,rgba(6,17,27,.55),rgba(6,17,27,.95) 55%),url(../img/escena-intro.webp) 60% 0/auto 55% no-repeat}}
.etq3d{position:fixed;z-index:3;left:0;top:0;transform:translate(-50%,-120%);pointer-events:none;font:700 14px/1.1 var(--f-t);color:#fff;
  background:rgba(6,17,27,.86);border:1px solid var(--lineS);border-radius:999px;padding:7px 12px;white-space:nowrap;opacity:0;transition:opacity .3s}
.etq3d::after{content:'';position:absolute;left:50%;top:100%;width:1px;height:22px;background:var(--teal)}
.etq3d.on{opacity:1}
.etq3d .n{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--teal);color:var(--ink);margin-right:7px;font-size:12px}

/* Cabecera */
.top{position:fixed;inset:0 0 auto;z-index:50;background:linear-gradient(180deg,rgba(4,12,20,.85),rgba(4,12,20,0));transition:background .3s}
.top.solida{background:rgba(6,17,27,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top__in{max-width:var(--max);margin:auto;padding:12px var(--pad);display:flex;align-items:center;gap:22px}
.top__logo img{width:140px;height:auto}
.top__nav{display:flex;gap:18px;margin-left:auto}
.top__nav a,.top__lang{text-decoration:none;font-weight:600;font-size:15px;color:#c9d7e0;padding:10px 0}
.top__nav a:hover,.top__lang:hover{color:#fff}
.top__lang{border:1px solid var(--line);border-radius:999px;padding:8px 14px}

/* Botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 22px;border-radius:999px;border:0;cursor:pointer;
  font-weight:700;text-decoration:none;color:var(--ink);background:linear-gradient(135deg,#8ff0ff,var(--teal));box-shadow:0 10px 30px rgba(63,208,255,.25);transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(63,208,255,.35)}
.btn--sm{min-height:44px;padding:10px 18px;font-size:15px}
.btn--wa{background:#1fae5b;color:#fff;box-shadow:none}
.btn-save{background:var(--save);color:#fff;box-shadow:0 10px 30px rgba(31,157,85,.3)}
.btn[disabled]{opacity:.6;cursor:wait;transform:none}

/* Escenas */
main{position:relative;z-index:1}
.escena{min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;position:relative}
.escena.alta{min-height:180vh;align-items:flex-start}
.escena.alta .panel{position:sticky;top:110px}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:clamp(22px,3.4vw,44px);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);max-width:820px}
.panel--lado{max-width:560px;margin-left:var(--pad)}
.panel--ancho{max-width:var(--max)}
.wrap.panel{margin-left:auto;margin-right:auto}
.wrap.panel--lado{margin-left:max(var(--pad),calc((100vw - var(--max))/2))}
.intro{align-items:flex-end;padding-bottom:12vh}
.intro .wrap{width:100%}
.cifras{list-style:none;padding:0;margin:30px 0 22px;display:flex;flex-wrap:wrap;gap:12px}
.cifras li{background:rgba(6,17,27,.7);border:1px solid var(--line);border-radius:14px;padding:12px 18px;min-width:140px}
.cifras b{display:block;font:800 clamp(30px,3.4vw,44px)/1 var(--f-h);color:#fff}
.cifras span{font-size:14px;color:var(--mut)}
.firma-corta{font-size:15px;color:var(--mut)}
.bajar{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:700;color:var(--teal);min-height:44px}
.bajar svg{animation:bajar 1.8s ease-in-out infinite}
@keyframes bajar{50%{transform:translateY(6px)}}
.lista-check{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.lista-check li{display:flex;gap:10px;align-items:flex-start}
.lista-check svg{color:var(--teal);margin-top:4px}
.rejilla{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-top:20px}
.tarjeta{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;padding:18px}
.tarjeta h3{margin:0 0 6px;font-size:22px}
.tarjeta p{margin:0;font-size:16px;color:#c3d2dc}
.tarjeta svg{color:var(--teal);width:26px;height:26px;margin-bottom:8px}
.piezas{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:10px}
.piezas li{display:grid;gap:2px;padding:12px 14px;border-radius:12px;border:1px solid var(--line);transition:border-color .3s,background .3s}
.piezas li.on{border-color:var(--teal);background:rgba(92,182,192,.1)}
.piezas b{font-weight:700;color:#fff;display:flex;align-items:center;gap:8px}
.piezas .n{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--teal);color:var(--ink);font-size:13px}
.piezas span{font-size:16px;color:#c3d2dc}
.ayuda{margin-top:16px;font-size:15px;color:var(--teal)}
.foto-sin3d{display:none}
html.no3d .solo3d{display:none}
html.no3d .escena.alta{min-height:auto;flex-direction:column;align-items:stretch;gap:20px}
html.no3d .escena.alta .panel{position:static}
html.no3d .foto-sin3d{display:block;width:min(1240px,calc(100% - 2*var(--pad)));margin:0 auto;border-radius:var(--r);border:1px solid var(--line)}

/* Configurador */
.config{margin-top:24px;display:grid;gap:18px}
.config__ctrl{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.config label span,.campo span{display:block;font-size:14px;font-weight:700;color:var(--mut);margin-bottom:6px;letter-spacing:.04em}
select,input,textarea{width:100%;min-height:48px;padding:12px 14px;border-radius:12px;border:1px solid var(--lineS);background:rgba(4,12,20,.75);font-size:17px}
select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--teal) 50%),linear-gradient(135deg,var(--teal) 50%,transparent 50%);
  background-position:calc(100% - 22px) 52%,calc(100% - 16px) 52%;background-size:6px 6px;background-repeat:no-repeat;padding-right:40px}
select option{background:var(--ink2)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(63,208,255,.2)}
.config__out{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.dato{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.dato span{display:block;font-size:14px;color:var(--mut)}
.dato b{display:block;font:800 clamp(28px,3vw,38px)/1.05 var(--f-h);color:#fff;margin-top:4px}
.dato--ancho{grid-column:1/-1}
.dato--ancho b{font:700 19px/1.4 var(--f-t)}
.dato ul{margin:6px 0 0;padding-left:20px}
.barra{position:relative;height:10px;border-radius:99px;margin:14px 0 22px;background:linear-gradient(90deg,#1fae5b 0 37.5%,var(--amber) 37.5% 62.5%,var(--red) 62.5%)}
.barra i{position:absolute;top:-5px;width:4px;height:20px;border-radius:2px;background:#fff;box-shadow:0 0 0 3px rgba(0,0,0,.4);transition:left .4s cubic-bezier(.2,.7,.2,1);left:0}
.barra em{position:absolute;top:14px;transform:translateX(-50%);font-style:normal;font-size:12px;color:var(--mut)}

/* Ficha técnica */
.tabla{width:100%;border-collapse:collapse;margin:8px 0 6px;font-size:17px}
.tabla th,.tabla td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line)}
.tabla thead th{font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--teal)}
.tabla tbody tr:hover{background:rgba(92,182,192,.06)}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.datos{margin:0;display:grid}
.datos div{display:grid;grid-template-columns:42% 1fr;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.datos dt{color:var(--mut);font-size:16px}
.datos dd{margin:0;color:#fff;font-weight:600}

/* Obra */
.casos{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
.caso{margin:0;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.caso img{aspect-ratio:4/3;object-fit:cover;width:100%}
.caso figcaption{padding:14px 16px}
.caso h3{margin:0 0 6px;font-size:22px}
.caso p{margin:0;font-size:16px;color:#c3d2dc}

/* Contacto */
.ctas{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:22px 0 30px}
.cta{background:linear-gradient(160deg,rgba(92,182,192,.14),rgba(255,255,255,.03));border:1px solid var(--lineS);border-radius:16px;padding:20px;display:flex;flex-direction:column}
.cta__ico{width:34px;height:34px;color:var(--teal)}
.cta h3{margin:10px 0 6px}
.cta p{font-size:16px;color:#c3d2dc;flex:1}
.cta__btns{display:flex;gap:8px;flex-wrap:wrap}
.form{display:grid;gap:12px}
.form h3{margin-top:0}
.campo{display:block}
.dos--campos{gap:12px}
textarea{min-height:110px;resize:vertical}
.trampa{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.mk4-ok{background:rgba(31,157,85,.16);border:1px solid var(--save);border-radius:12px;padding:12px 14px;color:#d9f7e5;margin:0}
.contacto-datos{list-style:none;padding:0;margin:0;display:grid;gap:10px;align-content:start}
.contacto-datos a{display:flex;gap:14px;align-items:center;text-decoration:none;padding:14px 16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);min-height:60px}
.contacto-datos a:hover{border-color:var(--teal)}
.contacto-datos svg{color:var(--teal);width:24px;height:24px}
.contacto-datos small{display:block;color:var(--mut);font-size:13px}
.contacto-datos b{color:#fff}

/* FAQ y firma */
.faq-bloque{margin-top:26px}
.faq-bloque .kicker{margin-bottom:4px}
.faq{border-bottom:1px solid var(--line);padding:6px 0 10px}
.faq h3{font:700 19px/1.35 var(--f-t);margin:12px 0 6px;color:#fff}
.faq p{margin:0;color:#c3d2dc}
.firma{display:flex;gap:22px;align-items:flex-start}
.firma img{width:64px;height:64px;flex:none}
.fuentes-t{font-size:20px!important}
.fuentes{list-style:none;padding:0;margin:0;display:grid;gap:6px;font-size:15px}
.fuentes a{color:var(--teal);display:inline-flex;gap:6px;align-items:center}
.fuentes svg{width:14px;height:14px}

/* Pie */
.pie{position:relative;z-index:1;background:#030a11;border-top:1px solid var(--line);padding:34px 0 40px;font-size:15px;color:var(--mut)}
.pie__marca{color:#c9d7e0}
.pie__enlaces{display:flex;flex-wrap:wrap;gap:6px 20px;margin-bottom:12px}
.pie__enlaces a{color:var(--teal);min-height:44px;display:inline-flex;align-items:center}

/* Popup propio (aspa blanca sobre caja roja) */
.mk4-popup{position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.55);display:grid;place-items:center;padding:16px}
.mk4-popup-caja{position:relative;max-width:440px;width:100%;background:var(--ink2);border:1px solid var(--lineS);border-radius:16px;padding:28px 24px 20px}
.mk4-popup-caja p{margin:0;color:#fff}
.mk4-x{position:absolute;top:-12px;right:-12px;width:40px;height:40px;border:0;border-radius:10px;background:var(--cancel);color:#fff;font-size:26px;line-height:1;cursor:pointer}

/* Aparición al hacer scroll */
html.js [data-reveal]{opacity:0;transform:translateY(34px);transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
html.js [data-reveal].in{opacity:1;transform:none}

@media (max-width:1080px){
  .top__nav{display:none}
  .top__lang{margin-left:auto}
  .casos{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:17px}
  .escena{min-height:auto;padding:96px 0 40px}
  .intro{min-height:100svh}
  .escena.alta{min-height:150vh}
  .escena.alta .panel{top:84px}
  .wrap.panel--lado{margin:0 16px}
  .panel{padding:20px 18px;border-radius:16px}
  .wrap.panel{margin-left:16px;margin-right:16px;width:auto}
  .config__ctrl,.config__out,.ctas,.dos,.casos{grid-template-columns:1fr}
  .top__in{gap:10px;padding:10px 16px}
  .top__logo img{width:112px}
  .top .btn--sm{padding:8px 14px}
  .datos div{grid-template-columns:1fr}
  /* Tablas → tarjetas */
  .tabla--tarjetas thead{display:none}
  .tabla--tarjetas tr{display:block;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;padding:6px 4px}
  .tabla--tarjetas td,.tabla--tarjetas tbody th{display:flex;justify-content:space-between;gap:12px;border:0;padding:8px 12px}
  .tabla--tarjetas td::before{content:attr(data-col);color:var(--mut);font-size:14px}
  .tabla--comp tbody th{color:var(--teal);font-weight:700}
  .firma{flex-direction:column}
}
/* Salida del visor al terminar la parte cinematográfica (html.tresde-fuera, lo pone mk4.js) */
#mk4-canvas,.velo,.escenario{transition:transform .55s cubic-bezier(.2,.7,.2,1),opacity .55s}
html.tresde-fuera #mk4-canvas,html.tresde-fuera .velo{opacity:0;pointer-events:none}
html.tresde-fuera .etq3d{opacity:0!important}
html.tresde-fuera body{background:radial-gradient(90% 60% at 80% 0%,#12324a 0%,var(--ink) 60%) fixed}

/* Móvil con 3D: escenario propio bajo la cabecera; el texto se desplaza por debajo, nunca encima */
.escenario{display:none}
@media (max-width:760px){
  html.tresde-movil{--cab:64px;--banda:42svh}
  html.tresde-movil #mk4-canvas{top:var(--cab);height:var(--banda);width:100vw;z-index:5;pointer-events:auto;touch-action:pan-y;
    border-bottom:1px solid var(--lineS)}
  html.tresde-movil .velo{display:none}
  html.tresde-movil .top{background:rgba(6,17,27,.96)}
  html.tresde-movil main{padding-top:calc(var(--banda) - 24px)}
  html.tresde-movil .escena{padding-top:var(--cab)}
  html.tresde-movil .intro{min-height:auto;padding-bottom:40px}
  html.tresde-movil .escena.alta{min-height:170svh}
  html.tresde-movil .escena.alta .panel{position:static}
  html.tresde-movil .ayuda{display:block}
  html.tresde-movil .escenario{display:block;position:fixed;left:0;right:0;top:var(--cab);height:var(--banda);z-index:6;pointer-events:none;
    background:linear-gradient(180deg,rgba(6,17,27,.55),transparent 22%,transparent 78%,rgba(6,17,27,.85))}
  .escenario__chip{position:absolute;left:12px;top:10px;max-width:calc(100% - 24px);font:700 12px/1.2 var(--f-t);letter-spacing:.08em;
    text-transform:uppercase;color:#fff;background:rgba(6,17,27,.78);border:1px solid var(--lineS);border-radius:999px;padding:6px 11px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .escenario__giro{position:absolute;right:12px;bottom:14px;font:600 12px/1 var(--f-t);color:var(--teal);background:rgba(6,17,27,.78);
    border-radius:999px;padding:6px 10px;transition:opacity .6s}
  .escenario.tocado .escenario__giro{opacity:0}
  .escenario__barra{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgba(255,255,255,.08)}
  .escenario__barra b{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--cyan));transform-origin:0 50%;transform:scaleX(0);transition:transform .2s}
  html.tresde-movil.tresde-fuera #mk4-canvas,html.tresde-movil.tresde-fuera .escenario{transform:translateY(calc(-1 * (var(--cab) + var(--banda))));opacity:0;pointer-events:none}
  html.tresde-movil .etq3d{z-index:7;font-size:12px;padding:5px 10px}
  html.tresde-movil .etq3d::after{height:14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  html.js [data-reveal]{opacity:1;transform:none}
}