:root{
  --background-dark: #2d3548;
  --text-light: rgba(255,255,255,0.6);
  --text-lighter: rgba(255,255,255,0.9);
  --spacing-s: 8px;
  --spacing-m: 16px;
  --spacing-l: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 64px;
  --width-container: 1200px;
}

*{
  border: 0;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html{
  height: 100%;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
}

body{
  height: 100%;
}

.hero-section {
  align-items: flex-start;
  background-image: linear-gradient(15deg, #009688 0%, #2a6973 150%);
  display: flex;
  justify-content: center;
  padding: var(--spacing-xxl) var(--spacing-l);
}

.header-content h6 {
  margin-bottom: 0 !important;
  padding-bottom: 0 !important;
}

.empresa-texto {
  font-weight: 600;          /* más vistoso */  
  letter-spacing: 1px;       /* espacio entre letras */
  font-family: 'Poppins', sans-serif; /* fuente moderna */
  margin-top: 0; /* sin espacio extra arriba */
  margin-top: 0 !important;
  padding-top: 0 !important;

}

.card-grid{
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  grid-column-gap: var(--spacing-l);
  grid-row-gap: var(--spacing-l);
  max-width: var(--width-container);
  width: 100%;
}

@media(min-width: 540px){
  .card-grid{
    grid-template-columns: repeat(2, 1fr); 
  }
}

@media(min-width: 960px){
  .card-grid{
    grid-template-columns: repeat(4, 1fr); 
  }
}

.card{
  list-style: none;
  position: relative;
  border-radius: var(--spacing-l); /* esquinas redondeadas */
  overflow: hidden; /* asegura que imagen y efectos no se salgan */
  cursor: pointer;
}

.card:before{
  content: '';
  display: block;
  padding-bottom: 150%;
  width: 100%;
}

.card__background{
  background-size: cover;
  background-position: center;
  border-radius: var(--spacing-l);
  bottom: 0;
  filter: brightness(0.85) saturate(1.1) contrast(0.9);
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
  transform-origin: center;
  transform: scale(1) translateZ(0);
  transition: transform 300ms ease;
  z-index: 1;
}

/* capa overlay */
.card__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  transition: background 300ms ease, backdrop-filter 300ms ease;
  backdrop-filter: none;
}

/* tarjeta seleccionada: solo zoom */
.card:hover .card__background{
  transform: scale(1.1) translateZ(0);
}
.card:hover .card__background::after {
  background: rgba(0, 0, 0, 0.3); /* mantiene misma luz, no oscurece */
  backdrop-filter: none;
}

/* las demás: oscurecidas y desenfocadas */
.card-grid:hover > .card:not(:hover) .card__background::after {
  backdrop-filter: blur(8px);
  background: rgba(0, 0, 0, 0.6);
}

.card__content{
  left: 0;
  padding: var(--spacing-l);
  position: absolute;
  top: 0;
  z-index: 2;
}

.card__category{
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-s);
  text-transform: uppercase;
}

.card__heading{
  color: var(--text-lighter);
  font-size: 1.9rem;
  text-shadow: 2px 2px 20px rgba(0,0,0,0.2);
  line-height: 1.4;
  word-spacing: 100vw;
}