/* Sistema compartido del sitio Broasterman y de la página de la Radiografía.
   Oscuro técnico: fondo vivo, grano, profundidad, plano de ingeniería. Tokens del manual de marca. */
@font-face{font-family:"Gotham Ultra";src:url("assets/Gotham-Ultra.woff2") format("woff2"),url("assets/Gotham-Ultra.otf") format("opentype");font-weight:900;font-display:swap}
@font-face{font-family:"Gotham Light";src:url("assets/Gotham-Light.woff2") format("woff2"),url("assets/Gotham-Light.otf") format("opentype");font-weight:300;font-display:swap}
:root{
  --carbon:#101315; --negro:#0b0d0e; --panel:#161A1C; --panel2:#1B2023; --rule:#2A2E31; --muted:#8E8A86; --suave:#C9C6C0;
  --papel:#F2F1EE; --hoja:#FBFAF8; --linea:#D9D6CF; --tinta:#2B2E30; --gris:#6B6A66;
  --rojo:#E01034; --rojo-hondo:#96061F; --azul:#7FB4E6; --verde:#1E9E5E;
  --ultra:"Gotham Ultra","Montserrat","Helvetica Neue",Arial,sans-serif;
  --light:"Gotham Light","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
html{scroll-behavior:smooth}
body{background:var(--carbon);color:var(--papel);font:300 17px/1.6 var(--light);overflow-x:hidden}
img,video{max-width:100%}
.in{max-width:1180px;margin:0 auto;padding-inline:20px}
.u{font-family:var(--ultra);font-weight:900;text-transform:uppercase;letter-spacing:-.035em;line-height:.93;text-wrap:balance;margin:0}
.u em{font-style:normal;color:var(--rojo)}
.ante{font:300 12px/1.35 var(--light);letter-spacing:.24em;text-transform:uppercase;margin:0;color:var(--azul)}
p{margin:0}
:focus-visible{outline:2px solid var(--rojo);outline-offset:3px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:900 14px/1 var(--ultra);text-transform:uppercase;letter-spacing:.02em;text-decoration:none;padding:17px 24px;border-radius:2px;border:1.5px solid transparent;transition:transform .2s,background .2s,box-shadow .2s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn.rojo{background:var(--rojo);color:#fff;box-shadow:0 12px 32px rgba(224,16,52,.35)}
.btn.rojo:hover{background:#c50d2d;box-shadow:0 16px 40px rgba(224,16,52,.45)}
.btn.linea{border-color:rgba(242,241,238,.45);color:var(--papel);background:transparent}
.btn.linea:hover{border-color:var(--papel)}
.btn.chico{padding:11px 15px;font-size:12px}

.maqueta{background:var(--papel);color:var(--carbon);text-align:center;font:300 13px/1.4 var(--light);padding:8px 16px;position:relative;z-index:6}
.maqueta b{font-family:var(--ultra);font-weight:900;letter-spacing:.04em}

/* Grano y barrido de luz */
.grano{position:absolute;inset:-50%;pointer-events:none;opacity:.08;mix-blend-mode:overlay;z-index:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  animation:grano .5s steps(3) infinite}
@keyframes grano{0%{transform:translate(0,0)}33%{transform:translate(-3%,2%)}66%{transform:translate(2%,-3%)}100%{transform:translate(0,0)}}
.barrido{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:1}
.barrido::before{content:"";position:absolute;top:-20%;bottom:-20%;width:26%;left:-40%;transform:skewX(-18deg);background:linear-gradient(90deg,transparent,rgba(127,180,230,.09),rgba(255,255,255,.13),rgba(127,180,230,.09),transparent);animation:barre 2.4s .4s cubic-bezier(.6,0,.2,1) both}
.visto .barrido::before{animation:barre 1.8s cubic-bezier(.6,0,.2,1) both}
@keyframes barre{to{left:125%}}

/* Barra superior */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:rgba(16,19,21,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.top .in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:13px}
.top .logo img{height:22px;width:auto;display:block}
.top nav{display:flex;gap:20px;flex-wrap:nowrap;white-space:nowrap}
.top nav a{font:300 12px/1 var(--light);letter-spacing:.18em;text-transform:uppercase;text-decoration:none;color:var(--papel);opacity:.78}
.top nav a:hover{opacity:1;color:var(--rojo)}

/* Fondo vivo */
.vivo{position:relative;overflow:hidden;isolation:isolate}
.vivo > .fondo{position:absolute;inset:-6%;z-index:-3;will-change:transform}
.vivo > .fondo video,.vivo > .fondo img{width:100%;height:100%;object-fit:cover;filter:blur(20px) brightness(.3) saturate(.9);transform:scale(1.12)}
.vivo > .velo{position:absolute;inset:0;z-index:-2;background:radial-gradient(ellipse at 70% 35%,transparent 0%,rgba(16,19,21,.55) 55%,var(--carbon) 100%),linear-gradient(0deg,var(--carbon) 0%,transparent 40%)}
.vivo > .grano{z-index:-1}

/* Entrada al cargar */
.entra{animation:entra .55s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--d,0s) * .5)}
@keyframes entra{from{opacity:0;transform:translateY(34px);filter:blur(10px)}to{opacity:1;transform:none;filter:none}}

/* Aparición al bajar: solo si el script la prepara */
.js .rev.pre{opacity:0;transform:translateY(40px)}
.js .rev{transition:opacity .6s cubic-bezier(.2,.8,.2,1),transform .6s cubic-bezier(.2,.8,.2,1);transition-delay:calc(var(--d,0s) * .5)}

/* Tarjeta de vidrio en 3D */
.escena{perspective:1400px}
.vidrio3d{position:relative;transform:rotateY(-9deg) rotateX(4deg);transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.vidrio{position:relative;border-radius:14px;overflow:hidden;box-shadow:0 40px 90px rgba(0,0,0,.6),0 0 0 1px rgba(255,255,255,.16),inset 0 0 0 1px rgba(255,255,255,.08)}
.vidrio video,.vidrio img{display:block;width:100%;height:100%;object-fit:cover}
.vidrio::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(125deg,rgba(255,255,255,.16) 0%,rgba(255,255,255,0) 28%,rgba(255,255,255,0) 72%,rgba(127,180,230,.10) 100%)}
.rec{position:absolute;top:14px;left:14px;z-index:2;font:500 11px/1 var(--mono);letter-spacing:.08em;color:var(--papel);background:rgba(10,10,10,.55);padding:7px 9px;border-radius:3px;display:flex;gap:7px;align-items:center;backdrop-filter:blur(6px)}
.rec i{width:7px;height:7px;border-radius:50%;background:var(--rojo);animation:late 1.2s infinite}
@keyframes late{50%{opacity:.25}}

/* Secciones */
.bloque{position:relative;padding-block:clamp(72px,10vw,120px)}
.cab{display:grid;gap:16px;max-width:800px}
.cab h2{font-size:clamp(38px,6vw,74px)}
.cab p{font-size:19px;color:var(--suave);max-width:58ch}
.plano-fondo{background:
  linear-gradient(rgba(127,180,230,.055) 1px,transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg,rgba(127,180,230,.055) 1px,transparent 1px) 0 0/40px 40px,
  radial-gradient(ellipse at 25% 0%,#17222b 0%,var(--carbon) 62%)}
.papel{background:var(--papel);color:var(--carbon)}
.papel .u{color:var(--carbon)} .papel .u em{color:var(--rojo-hondo)}
.papel .ante{color:var(--rojo-hondo)}
.papel .cab p{color:var(--tinta)}

/* Plano de las nueve estaciones */
.plano-wrap{position:relative}
.plano-wrap .lomo,.plano-wrap .lomo-base{position:absolute;left:21px;top:8px;bottom:8px;width:2px}
.plano-wrap .lomo-base{background:rgba(127,180,230,.16)}
.plano-wrap .lomo{background:linear-gradient(var(--azul),var(--papel));transform-origin:top;transform:scaleY(var(--p,1))}
.plano{list-style:none;margin:0;padding:0 0 0 64px;display:grid;gap:24px}
.est{position:relative;display:grid;grid-template-columns:auto 1fr;gap:4px 16px;align-items:baseline;min-width:0;transition:opacity .45s,transform .45s}
.est .nodo{position:absolute;left:-52px;top:3px;width:16px;height:16px;border-radius:50%;border:2px solid var(--azul);background:var(--carbon);transition:background .3s,box-shadow .3s}
.est .n{font:500 12px/1 var(--mono);color:var(--azul);letter-spacing:.06em}
.est h3{font:900 clamp(19px,2.2vw,26px)/1 var(--ultra);text-transform:uppercase;letter-spacing:-.02em;margin:0}
.est .q{grid-column:2;font-size:16px;color:#BDBAB4;max-width:52ch}
.est.on .nodo{background:var(--azul);box-shadow:0 0 0 6px rgba(127,180,230,.15),0 0 18px rgba(127,180,230,.6)}
.js-plano .est:not(.on){opacity:.3;transform:translateX(-8px)}

/* Medidores */
.medidor{border:1px solid rgba(127,180,230,.22);background:rgba(16,19,21,.72);backdrop-filter:blur(8px);border-radius:4px;padding:18px;display:grid;gap:10px}
.medidor .cab-m{display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.medidor b{font:900 15px/1.1 var(--ultra);text-transform:uppercase}
.medidor span.u2{font:500 12px/1 var(--mono);color:var(--muted)}
.medidor .barra{position:relative;height:8px;background:#262b2e;border-radius:4px;overflow:visible}
.medidor .barra i{position:absolute;inset:0 auto 0 0;border-radius:4px;background:linear-gradient(90deg,var(--azul),var(--papel));width:var(--w,0);transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.medidor .barra s{position:absolute;top:-5px;bottom:-5px;width:2px;background:var(--rojo);text-decoration:none}
.medidor p{font-size:14px;color:var(--muted)}

/* Pasos */
.pasos5{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:s}
.pasos5 li{counter-increment:s;position:relative;border:1px solid var(--rule);background:linear-gradient(180deg,var(--panel2),var(--panel));border-radius:6px;padding:22px 18px;display:grid;gap:12px;align-content:start;min-width:0}
.pasos5 li::before{content:counter(s,decimal-leading-zero);font:500 12px/1 var(--mono);color:var(--azul);letter-spacing:.1em}
.pasos5 svg{width:34px;height:34px;stroke:var(--papel);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.pasos5 b{font:900 17px/1.1 var(--ultra);text-transform:uppercase}
.pasos5 p{font-size:15px;color:var(--suave)}

/* Testimonios */
.testis{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr));gap:16px}
.testi{position:relative;border-radius:10px;overflow:hidden;background:var(--panel);border:1px solid var(--rule);display:grid;grid-template-rows:auto 1fr}
.testi .marco{position:relative;aspect-ratio:9/12;background:#0d0f10}
.testi video{width:100%;height:100%;object-fit:cover;display:block}
.testi .play{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(0deg,rgba(10,10,10,.65),transparent 55%);border:0;cursor:pointer;color:#fff}
.testi .play span{width:62px;height:62px;border-radius:50%;background:rgba(224,16,52,.92);display:grid;place-items:center;box-shadow:0 10px 30px rgba(224,16,52,.4);transition:transform .2s}
.testi .play:hover span{transform:scale(1.08)}
.testi .play svg{width:22px;height:22px;fill:#fff;margin-left:4px}
.testi.sonando .play{display:none}
.testi .pie{padding:16px 18px;display:grid;gap:8px}
.testi blockquote{margin:0;font-size:16px;line-height:1.5;color:var(--papel)}
.testi cite{font-style:normal;font:300 12px/1.3 var(--light);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.testi cite b{font-family:var(--ultra);font-weight:900;color:var(--papel);letter-spacing:.04em}

/* Preguntas */
.faq{display:grid;gap:10px;max-width:860px}
.faq details{border:1px solid var(--rule);background:var(--panel);border-radius:6px}
.faq summary{list-style:none;cursor:pointer;padding:18px 20px;font:900 16px/1.25 var(--ultra);text-transform:uppercase;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:300 26px/1 var(--light);color:var(--azul);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 20px 20px;color:var(--suave);max-width:64ch}

/* Pie */
footer.pie-sitio{border-top:1px solid var(--rule)}
footer.pie-sitio .in{display:flex;flex-wrap:wrap;gap:20px 40px;justify-content:space-between;align-items:center;padding-block:36px}
footer.pie-sitio .marca{display:flex;align-items:center;gap:16px}
footer.pie-sitio .sigla{height:20px;width:auto}
footer.pie-sitio .gallo{height:44px;width:auto}
footer.pie-sitio .links{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
footer.pie-sitio .links a{text-decoration:none;color:inherit}
footer.pie-sitio .links a:hover{color:var(--papel)}
.wa{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom,0px));z-index:7;background:var(--rojo);color:#fff;font:900 13px/1 var(--ultra);text-transform:uppercase;letter-spacing:.04em;padding:14px 18px;border-radius:999px;text-decoration:none;box-shadow:0 10px 26px rgba(0,0,0,.4);display:flex;gap:8px;align-items:center}
.wa svg{width:18px;height:18px;fill:#fff}

@media (max-width:1180px){ .top nav{display:none} }
@media (max-width:980px){
  .pasos5{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .pasos5{grid-template-columns:1fr}
  .plano{padding-left:46px}
  .plano-wrap .lomo,.plano-wrap .lomo-base{left:12px}
  .est .nodo{left:-41px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}