:root {
  --azul-principal: #3d8bfd;
  --azul-oscuro: #1f4f8f;
  --azul-claro: #eef6ff;
  --rojo-acento: #dc3545;
  --texto: #253047;
  --gris: #6c757d;
  --borde: #dbe7f3;
  --sombra: 0 24px 70px rgba(31, 79, 143, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #eef6ff 0%, #ffffff 55%, #f7fbff 100%);
  color: var(--texto);
}



.selector-container {
  position: relative;
  z-index: 1;
}

.selector-heading {
  max-width: 720px;
  margin: 0 auto 34px;
}

.selector-heading img {
  max-width: 115px;
  margin-bottom: 14px;
}

.selector-heading h2 {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--azul-oscuro);
  margin-bottom: 10px;
}

.selector-heading p {
  color: var(--gris);
  font-size: 1rem;
  margin: 0;
}

.apps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.app-card {
  position: relative;
  min-height: 245px;
  padding: 24px 20px 24px 20px;
  border-radius: 26px;
  background: #ffffff;
  border: 1px solid rgba(61, 139, 253, 0.12);
  box-shadow: 0 16px 40px rgba(31, 79, 143, 0.12);
  color: var(--texto) !important;
  text-decoration: none !important;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: all 0.25s ease;
}

.app-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(61, 139, 253, 0.08), rgba(255, 255, 255, 0));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.app-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--sombra);
  border-color: rgba(61, 139, 253, 0.28);
}

.app-card:hover::before {
  opacity: 1;
}

.app-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--azul-claro);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 16px;
  position: relative;
  z-index: 2;
}

.app-card-title {
  position: relative;
  z-index: 2;
  max-width: 100%;
  display: block;
  color: var(--azul-oscuro);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.25;
  margin-bottom: 8px;
}

.app-card-text {
  position: relative;
  z-index: 2;
  max-width: 100%;
  display: block;
  color: var(--gris);
  font-size: 0.9rem;
  line-height: 1.35;
  max-width: 92%;
}

.app-img {
  position: absolute;
  object-fit: contain;
  transition: all 0.25s ease;
}

.app-img-main {
  width: 120px;
  height: 85px;
  right: 16px;
  bottom: 16px;
  border-radius: 18px;
  opacity: 0.88;
  box-shadow: 0 14px 30px rgba(31, 79, 143, 0.16);
}

.app-img-hover {
  width: 95px;
  height: 95px;
  right: -8px;
  bottom: -12px;
  border-radius: 50%;
  opacity: 0;
  transform: translateY(14px) scale(0.95);
}

.app-card:hover .app-img-main {
  transform: translateY(-5px) scale(1.03);
  opacity: 1;
}

.app-card:hover .app-img-hover {
  opacity: 0.18;
  transform: translateY(0) scale(1);
}

@media (max-width: 1200px) {
  .apps-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .apps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 575px) {
 

  .selector-heading h2 {
    font-size: 1.7rem;
  }

  .apps-grid {
    grid-template-columns: 1fr;
  }

  .app-card {
    min-height: 220px;
    border-radius: 20px;
  }
}

.usuarios-grid{
    display:grid;
    grid-template-columns:repeat(2,320px);
    justify-content:center;
    gap:40px;
}


.usuarios-grid .app-card {
    background:#fff;
    border-radius:28px;
    overflow:hidden;
    box-shadow:0 15px 40px rgba(31,79,143,.12);
    text-decoration:none;
    transition:.25s;
}
.usuarios-grid .app-card:hover {
    transform:translateY(-8px);
}

.card-img-top{
    width:100%;
    height:220px;
    object-fit:cover;
    display:block;
}

.app-content{
    padding:25px;
    text-align:center;
}

.app-content h3{
    color:#1f4f8f;
    font-weight:700;
    margin-bottom:10px;
}

.app-content p{
    color:#6c757d;
    margin:0;
}