/* DIELUX Ingeniería — sistema visual: ingeniería + energía + precisión */
:root{
  --ink:#0c1f19; --ink-2:#14332a; --ink-3:#071310;
  --paper:#f0f4f1; --card:#ffffff; --line:#d3dcd6; --line-soft:#e3e9e4;
  --text:#202b26; --muted:#5d7167;
  --accent:#2ED08B; --accent-ink:#0C6B44; --teal:#147651;
  --radius:14px; --max:1160px;
  --font-d:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-b:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-m:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;font-family:var(--font-b);color:var(--text);background-color:var(--paper);background-image:linear-gradient(rgba(12,31,25,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(12,31,25,.05) 1px,transparent 1px);background-size:28px 28px;line-height:1.6;font-size:16.5px}
h1,h2,h3{font-family:var(--font-d);color:var(--ink);line-height:1.12;letter-spacing:-.01em;margin:0 0 .5rem}
h1{font-size:clamp(2rem,4.6vw,3.3rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:750}
h3{font-size:1.08rem;font-weight:700}
p{margin:0 0 1rem;max-width:68ch}
a{color:var(--ink)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
section{padding:72px 0}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid rgba(46,208,139,.8);outline-offset:2px}
/* kicker: regla corta + texto, sin mayúsculas forzadas */
.kicker{display:flex;align-items:center;gap:10px;color:var(--teal);font-weight:650;font-size:.95rem;margin-bottom:10px}
.kicker::before{content:"";width:28px;height:2px;background:var(--accent);border-radius:2px}
.lead{font-size:1.1rem;color:#2f3d34;max-width:62ch}
/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(240,244,241,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-d);font-weight:800;color:var(--ink);text-decoration:none}
.brand-name{font-family:var(--font-d);font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-accent{color:var(--teal)}
.brand-suffix{font-weight:500;font-size:.78em;color:var(--muted);letter-spacing:.02em}
.brand-mark{width:32px;height:32px;border-radius:8px;overflow:hidden;background:var(--ink);display:block;flex:none}
.brand-mark img{width:100%;height:100%;display:block;object-fit:cover}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{text-decoration:none;color:#2f3d34;font-size:.94rem;padding:8px 10px;border-radius:8px}
.nav-links a:hover{background:#e1e8e2;color:var(--ink)}
/* blindaje: un .btn dentro del nav conserva siempre los colores de su variante */
.nav-links a.btn-primary{color:#fff}
.nav-links a.btn-primary:hover{background:var(--ink-2);color:#fff}
.nav-links a.btn-accent{color:var(--ink-3)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:12px 20px;font-weight:700;text-decoration:none;border:1.5px solid transparent;cursor:pointer;font-size:.98rem}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2)}
.btn-accent{background:var(--accent);color:var(--ink-3)}
.btn-accent:hover{background:#27B87D}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-sm{padding:9px 14px;font-size:.9rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font-size:1.1rem}
/* hero */
.hero{background:var(--ink);color:#d3e4d9;padding:84px 0 0;position:relative;overflow:hidden;display:grid;grid-template-rows:1fr auto;min-height:clamp(560px,52vw,700px);box-shadow:inset 0 0 180px rgba(0,0,0,.5)}
/* retícula estilo AutoCAD: menor 28px + maestra 140px en blanco tenue.
   Va por encima de la foto (z-index:1) y por debajo del contenido (2). */
.hero::before{content:"";position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.11) 1px,transparent 1px);
  background-size:28px 28px,28px 28px,140px 140px,140px 140px}
/* crosshair + barra de estado estilo CAD (ver initHeroCad en app.js) */
.hero-grid{z-index:2}
#hero-crosshair-v,#hero-crosshair-h{position:absolute;top:0;left:0;background:rgba(255,255,255,.35);opacity:0;pointer-events:none;z-index:3;transition:opacity .2s ease}
#hero-crosshair-v{width:1px;height:100%}
#hero-crosshair-h{height:1px;width:100%}
#hero-statusbar{position:relative;z-index:4;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;margin:48px 0 0;padding:10px max(20px,calc((100% - var(--max))/2 + 20px));border-top:1px solid rgba(255,255,255,.16);background:rgba(7,19,16,.72);font-family:var(--font-m);font-size:11px;letter-spacing:.06em;color:#b7cabd}
#hero-statusbar .sb-model{background:rgba(201,127,31,.16);border:1px solid rgba(232,169,61,.45);border-radius:4px;padding:1px 8px;color:#e8b45a;font-weight:700}
#hero-coords{margin-left:auto}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;align-self:center}
.hero h1{color:#fff}
/* wordmark display en el hero: mismo split DIE/LUX (DIE esmeralda luminosa
   porque el teal es ilegible sobre tinta) + descriptor dentro del h1 */
.hero .brand-accent{color:var(--accent)}
.hero-wordmark{display:block;font-size:clamp(2.6rem,6vw,4.2rem);letter-spacing:.01em}
.hero-desc{display:block;margin-top:.45rem;font-size:clamp(1.02rem,1.5vw,1.25rem);font-weight:600;letter-spacing:0;color:#b7cabd;max-width:22ch}
.hero-acr{display:flex;flex-wrap:wrap;gap:6px 22px;margin:14px 0 18px;font-size:.9rem;color:#b7cabd}
.hero-acr b{font-family:var(--font-d);font-weight:800;color:var(--accent)}
.hero .lead{color:#b7cabd}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 24px}
.hero-tags span{border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:5px 12px;font-size:.83rem;color:#d3e4d9}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.hero-note{font-size:.88rem;color:#93ada1}
.hero .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
/* imagen del hero: capa de fondo a sangre, fundida de izquierda a derecha.
   0–25 % invisible, 25–50 % apenas visible, 50–100 % visible pero siempre
   debajo del contenido y de la retícula. No quitar la máscara. */
.hero-visual{position:absolute;inset:0;z-index:0;margin:0;pointer-events:none}
.hero-visual img{display:block;width:100%;height:100%;object-fit:cover;object-position:70% 45%;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 25%,rgba(0,0,0,.05) 30%,rgba(0,0,0,.12) 50%,rgba(0,0,0,.38) 66%,rgba(0,0,0,.62) 82%,rgba(0,0,0,.85) 100%);
  mask-image:linear-gradient(90deg,transparent 0%,transparent 25%,rgba(0,0,0,.05) 30%,rgba(0,0,0,.12) 50%,rgba(0,0,0,.38) 66%,rgba(0,0,0,.62) 82%,rgba(0,0,0,.85) 100%);
  -webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-size:100% 100%;mask-size:100% 100%}
/* schematic trace */
.trace{position:absolute;right:-40px;bottom:-30px;width:420px;opacity:.5;pointer-events:none}
/* generic cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.packs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{position:relative;background-color:#f8faf8;border:1px solid var(--line);border-radius:0;padding:24px;
  background-image:linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5));
  background-size:16px 2px,2px 16px,16px 2px,2px 16px;
  background-position:12px 12px,12px 12px,calc(100% - 12px) calc(100% - 12px),calc(100% - 12px) calc(100% - 12px);
  background-repeat:no-repeat}
/* cuerpo de tarjeta con la tipografía original (Inter); solo el chip va en mono */
.card h3{margin-bottom:.4rem}
.card p{font-size:.95rem;color:#42564a}
.svc-num,.card-code{display:inline-block;font-family:var(--font-m);font-weight:600;color:var(--teal);font-size:.68rem;letter-spacing:.06em;line-height:1.4;background:#fff;border:1px solid rgba(20,118,81,.45);padding:3px 8px;margin-bottom:10px}
.check{list-style:none;margin:12px 0 0;padding:0;font-size:.93rem}
.check li{padding:6px 0 6px 26px;position:relative;color:#2f3d34}
.check li::before{content:"";position:absolute;left:2px;top:12px;width:12px;height:7px;border-left:2.5px solid var(--teal);border-bottom:2.5px solid var(--teal);transform:rotate(-45deg) translateY(-2px)}
.band{background-color:#fff;background-image:linear-gradient(rgba(12,31,25,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(12,31,25,.05) 1px,transparent 1px);background-size:28px 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
/* Alternancia desde #problema: oscuro sin retícula / claro con retícula */
.band-dark{background-color:var(--ink);background-image:none;color:#d3e4d9;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08)}
.band-dark h2,.band-dark h3{color:#fff}
.band-dark .kicker{color:var(--accent)}
.band-dark .lead{color:#b7cabd}
.band-dark p{color:#b7cabd}
.band-dark .card,.band-dark .step{color:var(--text)}
.band-dark .card h3,.band-dark .step h3{color:var(--ink)}
.band-dark .card p,.band-dark .step p{color:#42564a}
.band-dark .contact-list li{color:var(--text)}
.band-dark .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.band-dark .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
/* blindajes: dentro de tarjetas blancas (incluso en secciones oscuras) el
   texto vuelve a tinta; y texto "note" legible sobre tinta */
.note{color:var(--muted)}
.band-dark .note{color:#93ada1}
.band-dark .check li{color:#c8d8ce}
.band-dark .card .check li,.band-dark .step .check li{color:#2f3d34}
.band-dark .card .btn-ghost,.band-dark .step .btn-ghost{border-color:var(--line);color:var(--ink)}
.band-dark .card .btn-ghost:hover,.band-dark .step .btn-ghost:hover{border-color:var(--ink);background:rgba(12,31,25,.06)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.spec{background-color:var(--ink-2);color:#d0e0d6;border-radius:0;padding:26px;
  background-image:linear-gradient(rgba(46,208,139,.45),rgba(46,208,139,.45)),linear-gradient(rgba(46,208,139,.45),rgba(46,208,139,.45)),linear-gradient(rgba(46,208,139,.45),rgba(46,208,139,.45)),linear-gradient(rgba(46,208,139,.45),rgba(46,208,139,.45));
  background-size:16px 2px,2px 16px,16px 2px,2px 16px;
  background-position:12px 12px,12px 12px,calc(100% - 12px) calc(100% - 12px),calc(100% - 12px) calc(100% - 12px);
  background-repeat:no-repeat}
.spec h3{color:#fff}
.spec ul{margin:10px 0 0;padding-left:18px;font-size:.94rem}
/* proceso: numeración válida porque SÍ es secuencia */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:paso}
.step{background-color:#f8faf8;border:1px solid var(--line);border-radius:0;padding:18px;position:relative;
  background-image:linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5));
  background-size:16px 2px,2px 16px,16px 2px,2px 16px;
  background-position:12px 12px,12px 12px,calc(100% - 12px) calc(100% - 12px),calc(100% - 12px) calc(100% - 12px);
  background-repeat:no-repeat}
.step::before{counter-increment:paso;content:"0" counter(paso);display:inline-block;font-family:var(--font-m);font-weight:600;color:var(--teal);font-size:.68rem;letter-spacing:.06em;line-height:1.4;background:#fff;border:1px solid rgba(20,118,81,.45);padding:3px 8px}
.step h3{margin:.55rem 0 .35rem;font-size:.98rem}
.step p{font-size:.88rem;color:#42564a;margin:0}
/* paquetes */
.packs{margin-top:24px}
.pack{display:flex;flex-direction:column}
.pack .svc-num{align-self:flex-start}
.pack .price{font-family:var(--font-d);font-weight:800;color:var(--teal);margin:.2rem 0 .6rem}
.pack .btn{margin-top:auto}
/* marquee de paquetes (initMarquee en app.js): el set de 5 tarjetas se
   duplica exactamente y ambos recorren en bucle con translateX(-50%).
   Máscara de desvanecido en los bordes y pausa al pasar el puntero.
   Sin JS no existe .mq y se conserva la cuadrícula original de .packs. */
.mq{overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 6%,#000 94%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 6%,#000 94%,transparent 100%)}
.mq .packs{margin-top:0}
.mq-track{display:flex;width:max-content;gap:0;animation:mq-scroll 36s linear infinite;will-change:transform}
.mq-set{display:flex;gap:16px;padding-right:16px}
.mq-set .pack{flex:0 0 clamp(270px,30vw,340px)}
.mq:hover .mq-track{animation-play-state:paused}
@keyframes mq-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){
  .mq{overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;-webkit-mask-image:none;mask-image:none}
  .mq-track{transform:none}
}
.audience{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.audience .card{padding:20px}
.audience h3{font-size:.98rem}
/* ia */
/* cta */
.cta-final{background-color:var(--ink-3);background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:28px 28px;color:#e0eae3;text-align:left;border-radius:0;padding:56px;position:relative;overflow:hidden}
.cta-final h2{color:#fff}
.cta-final p{color:#b7cabd}
.cta-final .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.cta-final .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
/* En #contacto (band-dark) el panel CTA se define por borde, sin retícula */
.band-dark .cta-final{background-color:var(--ink-2);background-image:none;border:1px solid rgba(255,255,255,.14)}
/* form */
.form-card{background-color:#f8faf8;border:1px solid var(--line);border-radius:0;padding:28px;
  background-image:linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5));
  background-size:16px 2px,2px 16px,16px 2px,2px 16px;
  background-position:12px 12px,12px 12px,calc(100% - 12px) calc(100% - 12px),calc(100% - 12px) calc(100% - 12px);
  background-repeat:no-repeat}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
label{font-weight:650;font-size:.88rem;color:var(--ink)}
input,select,textarea{border:1.5px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit;font-size:.94rem;background:#fafcfb;color:var(--text)}
input:focus,select,textarea:focus{outline:3px solid rgba(20,118,81,.25);border-color:var(--teal)}
textarea{min-height:110px;resize:vertical}
.form-msg{margin-top:12px;font-size:.92rem;display:none;border-radius:10px;padding:12px 14px}
.form-msg.ok{display:block;background:#eaf6f3;border:1px solid #bfe3da;color:#0f5c3e}
.form-msg.err{display:block;background:#fdf0ec;border:1px solid #f2c4b5;color:#8a3a22}
.contact-list{list-style:none;margin:16px 0;padding:0;display:grid;gap:10px}
.contact-list li{background:#fff;border:1px solid var(--line);border-radius:0;padding:12px 14px;font-size:.94rem}
.contact-list code{background:#e7ede8;border-radius:6px;padding:2px 6px;font-size:.88rem}
/* footer */
footer{background:var(--ink-3);color:#9eb4a7;padding:44px 0;font-size:.9rem}
footer a{color:#d0e0d6}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px}
.foot-grid h3{color:#fff;font-size:.95rem}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:.5rem}
.foot-brand h3{margin:0}
.foot-brand img{width:36px;height:36px;display:block;flex:none}
.foot-wordmark .brand-accent{color:var(--accent)}
/* whatsapp flotante */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:60;background:#1faa55;color:#fff;border-radius:999px;padding:13px 18px;font-weight:700;text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.3);font-size:.92rem}
/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
/* responsive */
@media(max-width:1000px){
  .hero-grid,.split{grid-template-columns:1fr}
  /* una columna: el texto ocupa todo el ancho y la foto necesita más velo */
  .hero-visual img{object-position:72% 38%;
    -webkit-mask-image:linear-gradient(90deg,transparent 0%,transparent 20%,rgba(0,0,0,.05) 30%,rgba(0,0,0,.12) 50%,rgba(0,0,0,.34) 70%,rgba(0,0,0,.6) 100%);
    mask-image:linear-gradient(90deg,transparent 0%,transparent 20%,rgba(0,0,0,.05) 30%,rgba(0,0,0,.12) 50%,rgba(0,0,0,.34) 70%,rgba(0,0,0,.6) 100%)}
  .hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,31,25,.88) 0%,rgba(12,31,25,.66) 42%,rgba(12,31,25,.3) 70%,rgba(12,31,25,.08) 100%)}
  .grid-3,.grid-2{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .grid-4,.audience,.packs{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-final{padding:36px 24px}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 16px 16px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
}
@media(max-width:640px){
  section{padding:52px 0}
  .grid-3,.grid-2,.grid-4,.packs,.audience,.steps,.form-grid,.foot-grid{grid-template-columns:1fr}
  .hero{padding:56px 0 0}
  .hero-visual img{object-position:72% 34%}
}
/* modales de detalle (electrica / solar / tercerizada): overlay con blur,
   panel nítido. Apertura/cierre en initModals() de app.js */
.modal{position:fixed;inset:0;z-index:80;display:flex;align-items:center;justify-content:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(7,19,16,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.modal-panel{position:relative;background-color:var(--card);border:1px solid var(--line);border-radius:0;padding:32px;max-width:720px;width:100%;max-height:88vh;overflow-y:auto;box-shadow:0 24px 70px rgba(0,0,0,.4);
  background-image:linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5)),linear-gradient(rgba(20,118,81,.5),rgba(20,118,81,.5));
  background-size:16px 2px,2px 16px,16px 2px,2px 16px;
  background-position:12px 12px,12px 12px,calc(100% - 12px) calc(100% - 12px),calc(100% - 12px) calc(100% - 12px);
  background-repeat:no-repeat}
.modal-panel .split,.modal-panel .grid-3{grid-template-columns:1fr}
.modal-panel .spec{margin-top:18px}
.modal-close{position:sticky;top:0;margin-left:auto;display:block;background:#fff;border:1.5px solid var(--line);border-radius:10px;width:38px;height:38px;font-size:1.05rem;line-height:1;cursor:pointer;color:var(--ink)}
.modal-close:hover{border-color:var(--ink)}
@media(max-width:640px){
  .modal{padding:12px}
  .modal-panel{padding:24px 20px;max-height:92vh}
}