/* Páginas de proyecto (casos reales) — mismo sistema que la landing */
:root{
  --verde:#00E33C; --negro:#0A0B0D; --grafito:#2B2F35;
  --bg:#0A0B0D; --bg2:#0D0F12; --texto:#F4F5F6; --texto2:#C9CED4; --gris:#9AA1AA;
  --linea:rgba(244,245,246,.09); --tarjeta:#121418; --acento:#00E33C;
  --nav-bg:rgba(10,11,13,.85); --borde-btn:rgba(244,245,246,.25); --sombra:rgba(0,0,0,.6);
  --cond:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --max:1160px;
  --ease-out:cubic-bezier(.23,1,.32,1);
  color-scheme:dark;
}
:root[data-tema="dia"]{
  --bg:#F7F8F9; --bg2:#EDEFF2; --texto:#0A0B0D; --texto2:#2B2F35; --gris:#5A616B;
  --linea:rgba(10,11,13,.1); --tarjeta:#FFFFFF; --acento:#007A25;
  --nav-bg:rgba(247,248,249,.88); --borde-btn:rgba(10,11,13,.2); --sombra:rgba(10,11,13,.16);
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--texto);font-family:var(--sans);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background-color .35s,color .35s}
img{display:block;max-width:100%;height:auto}
::selection{background:var(--verde);color:var(--negro)}
html{caret-color:var(--verde);scrollbar-color:var(--grafito) var(--bg)}
h1,h2,h3{text-wrap:balance}
p{text-wrap:pretty}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
h1,h2,h3{font-family:var(--cond);text-transform:uppercase;line-height:.95;font-weight:800;letter-spacing:.01em}
.verde{color:var(--acento)}
.solo-dia{display:none!important}
:root[data-tema="dia"] .solo-dia{display:block!important}
:root[data-tema="dia"] .solo-noche{display:none!important}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:1px solid var(--linea)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.nav-logo img{height:30px;width:auto}
.nav-r{display:flex;align-items:center;gap:10px}
.volver{font-size:14.5px;color:var(--gris);display:inline-flex;gap:6px;align-items:center}
@media (max-width:560px){.volver span{display:none}}
.tema{width:44px;height:44px;border-radius:4px;transition:transform 160ms var(--ease-out),border-color 200ms ease;border:1.5px solid var(--borde-btn);background:transparent;color:var(--texto);display:grid;place-items:center;cursor:pointer}
.tema:active{transform:scale(.95)}
.tema svg{width:19px;height:19px}
.tema .sol{display:none}
:root[data-tema="dia"] .tema .sol{display:block}
:root[data-tema="dia"] .tema .luna{display:none}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:16px;padding:14px 22px;border-radius:4px;border:1.5px solid transparent;cursor:pointer;font-family:var(--sans);transition:transform 160ms var(--ease-out),background-color 200ms ease,border-color 200ms ease}
.btn:active{transform:scale(.97)}
.btn svg{width:19px;height:19px}
.btn-verde{background:var(--verde);color:var(--negro)}
.btn-borde{border-color:var(--borde-btn);color:var(--texto)}
@media (hover:hover) and (pointer:fine){.btn-verde:hover{background:#3DF06A}.btn-borde:hover,.tema:hover{border-color:var(--verde)}.volver:hover{color:var(--texto)}}
.nav .btn{padding:9px 16px;font-size:14.5px}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--verde);outline-offset:3px}

/* hero del caso */
.caso-hero{padding:64px 0 40px;position:relative;overflow:hidden}
.caso-hero::before{content:"";position:absolute;width:140%;height:18px;left:30%;top:70%;background:var(--verde);transform:rotate(-45deg);opacity:.18;pointer-events:none}
.etiquetas{display:flex;flex-wrap:wrap;gap:6px 18px;margin-bottom:22px;font-size:15px;color:var(--texto2)}
.etq{display:inline-flex;gap:8px;align-items:center}
.etq.vivo::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--verde)}
.marca-caso{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.marca-caso img{height:52px;width:auto;border-radius:12px}
.marca-caso b{font-size:20px}
.caso-hero h1{font-size:clamp(46px,7.5vw,96px);max-width:15ch}
.caso-hero .lead{font-size:clamp(17px,1.7vw,20px);color:var(--texto2);max-width:56ch;margin:22px 0 30px}
.acciones{display:flex;flex-wrap:wrap;gap:12px}

/* marcos de pantalla */
.navegador{border-radius:6px;overflow:hidden;border:1px solid var(--linea);background:var(--tarjeta);box-shadow:0 40px 90px -30px var(--sombra)}
.navegador .barra{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--linea);background:var(--bg2)}
.navegador .barra i{width:11px;height:11px;border-radius:50%;background:var(--linea)}
.navegador .barra span{margin-left:10px;font-size:12.5px;color:var(--gris);background:var(--tarjeta);border:1px solid var(--linea);border-radius:999px;padding:3px 12px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:70%}
.telefono{border-radius:34px;padding:10px;background:#0A0B0D;border:1px solid var(--linea);box-shadow:0 30px 70px -25px var(--sombra);max-width:300px}
.telefono img{border-radius:25px}
.zoom{cursor:zoom-in;display:block;width:100%;border:0;background:none;padding:0}
.portada{margin-top:48px}

/* secciones */
section.bloque{padding:80px 0}
.bloque h2{font-size:clamp(38px,5.5vw,64px);max-width:18ch}
.bloque .sub{color:var(--gris);font-size:18px;max-width:58ch;margin-top:16px}
.reto{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.reto p{color:var(--texto2);font-size:18px}
.reto p + p{margin-top:14px}
@media (max-width:820px){.reto{grid-template-columns:1fr;gap:20px}}

.funciones{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:44px 64px;margin-top:56px}
.fn{position:relative;padding-left:30px}
.fn::before{content:"";position:absolute;left:0;top:9px;width:12px;height:12px;background:var(--verde);transform:rotate(45deg)}
.fn h3{font-size:clamp(28px,3vw,36px);margin-bottom:8px}
.fn p{color:var(--texto2);font-size:17px;max-width:46ch}
@media (max-width:700px){.funciones{grid-template-columns:1fr;gap:32px}}

.galeria{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;margin-top:44px;align-items:center}
.galeria figure{margin:0}
.galeria figcaption{font-size:14px;color:var(--gris);margin-top:12px}
.g-ancha{grid-column:span 12}
.g-8{grid-column:span 8}
.g-4{grid-column:span 4;display:flex;flex-direction:column;align-items:center}
.g-6{grid-column:span 6}
@media (max-width:820px){.g-8,.g-6{grid-column:span 12}.g-4{grid-column:span 12}}

.servicios-tag{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.servicios-tag span{font-family:var(--cond);font-weight:700;text-transform:uppercase;font-size:20px;background:var(--verde);color:var(--negro);border-radius:4px;padding:6px 14px}

.nota{font-size:13.5px;color:var(--gris);margin-top:18px;max-width:70ch}

.cta{border-radius:4px;padding:clamp(30px,6vw,64px);background:var(--tarjeta)}
.cta h2{font-size:clamp(40px,6vw,76px);max-width:14ch}
.cta p{color:var(--texto2);font-size:18px;margin:18px 0 28px;max-width:52ch}

.siguiente{display:flex;justify-content:space-between;align-items:center;gap:16px;border-top:1px solid var(--linea);padding:28px 0;margin-top:70px}
.siguiente a{font-family:var(--cond);font-weight:800;text-transform:uppercase;font-size:clamp(28px,4vw,44px)}
.siguiente a:hover{color:var(--acento)}
.siguiente small{display:block;font-family:var(--sans);font-weight:500;text-transform:none;font-size:14px;color:var(--gris)}

footer{border-top:1px solid var(--linea);padding:30px 0;color:var(--gris);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
footer img{height:26px;width:auto}

/* visor de imágenes */
dialog.visor{border:0;padding:0;background:transparent;max-width:min(96vw,1500px);max-height:94vh;margin:auto}
dialog.visor::backdrop{background:rgba(10,11,13,.86)}
dialog.visor img{max-height:90vh;width:auto;border-radius:12px}
dialog.visor button{position:fixed;top:14px;right:16px;width:44px;height:44px;border-radius:50%;border:0;background:#F4F5F6;color:#0A0B0D;font-size:26px;cursor:pointer}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn:active,.tema:active{transform:none}}
@media (max-width:520px){section.bloque{padding:60px 0}.wrap{padding:0 16px}.acciones .btn{width:100%}}