.apps-presentacion { background:radial-gradient(ellipse at 85% 0%,#124270 0%,transparent 65%),#091827; padding-block:48px; }
.apps-etiqueta { color:var(--color-acento); text-transform:uppercase; font-size:13px; letter-spacing:1.8px; margin-bottom:14px; }
.apps-presentacion h1 { font-size:clamp(34px,5vw,58px); line-height:1.1; letter-spacing:-1px; margin:0 0 18px; }
.apps-presentacion #descripcion { color:var(--color-texto-secundario); font-size:clamp(17px,2vw,22px); max-width:780px; margin:0; }
.app-bloque { position:relative; isolation:isolate; overflow:hidden; border-top:1px solid var(--color-borde); background:var(--color-fondo); }
.app-fondo { position:absolute; z-index:-2; inset:0; width:100%; height:100%; object-fit:cover; object-position:right center; }
.app-bloque::after { content:""; position:absolute; z-index:-1; inset:0; background:linear-gradient(90deg,rgba(9,15,25,.94),rgba(9,15,25,.65) 40%,rgba(9,15,25,.1) 75%); }
.app-fila { display:grid; grid-template-columns:1fr 1fr; gap:50px; align-items:center; min-height:640px; padding-block:38px; }
.app-texto { max-width:520px; }
.app-texto h2 { font-size:clamp(38px,5.5vw,68px); line-height:1.05; letter-spacing:-1px; margin:0 0 18px; overflow-wrap:anywhere; }
.app-bloque[data-app="3dcost"] h2 { color:#ecfbff; }
.app-bloque[data-app="construcost"] h2 { color:#fff7ef; }
.app-categoria { text-transform:uppercase; letter-spacing:2px; font-size:14px; color:#b4d7ed; margin-bottom:24px; }
.app-descripcion { font-size:clamp(17px,2vw,22px); line-height:1.6; margin-bottom:30px; }
.telefono { position:relative; width:min(255px,100%); margin-inline:auto; padding:10px; border:2px solid #777e88; border-radius:36px; background:linear-gradient(110deg,#383c43,#090b0e 30%,#171b20 85%,#545b63); box-shadow:0 20px 45px rgba(0,0,0,.6),inset 0 0 0 2px #030508; }
.telefono img { width:100%; height:auto; border-radius:25px; background:#fff; }
.apps-contacto { padding-block:30px; text-align:center; }
.apps-contacto p { margin:0 0 10px; font-weight:600; }
.apps-contacto a { color:var(--color-acento); text-decoration:none; }
@media(max-width:760px) {
 .apps-presentacion { padding-block:34px; }
 .app-fila { grid-template-columns:1fr; gap:28px; min-height:0; padding-block:36px; }
 .app-texto { max-width:none; }
 .app-texto h2 { font-size:clamp(36px,10vw,54px); }
 .app-bloque::after { background:linear-gradient(180deg,rgba(9,15,25,.94),rgba(9,15,25,.4)); }
 .app-fondo { object-position:70% center; }
 .telefono { width:min(235px,85%); }
 .app-categoria { margin-bottom:15px; }
 .app-descripcion { margin-bottom:22px; }
}
.app-bloque {
  width: min(var(--ancho-contenido), calc(100% - 40px));
  margin-inline: auto;
}

.app-fila {
  width: 100%;
  padding-inline: 30px;
}

@media (max-width: 760px) {
  .app-fila {
    padding-inline: 20px;
  }
}