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

@property --pg-fondo {
  syntax: "<color>";
  inherits: true;
  initial-value: #020617;
}

@property --pg-fondo-mix {
  syntax: "<color>";
  inherits: true;
  initial-value: #020617;
}

@property --pg-acento {
  syntax: "<color>";
  inherits: true;
  initial-value: #020617;
}

body {
  font-family:
    "Montserrat",
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #020617;
  transition: background 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

body.hovered {
  background: linear-gradient(135deg,
      var(--pg-fondo),
      var(--pg-fondo-mix) 55%,
      var(--pg-acento));
}

.encabezado {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.encabezado .logo {
  width: min(200px, 45vw);
  height: auto;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.5));
}

.close-Session {
  font-family: "Montserrat";
  color: #fff;
  text-align: center;
  font-weight: bold;
  cursor: pointer;
}

.titulo {
  font-family: "Montserrat";
  color: #fff;
  font-weight: bold;
  font-size: clamp(1rem, 4vw, 2rem);

  letter-spacing: 2px;
  text-align: center;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  text-transform: uppercase;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  max-width: 960px;
  width: 90%;
  padding: 28px 0 40px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 260px;
  padding: 28px;
  border-radius: 20px;
  background: linear-gradient(135deg,
      var(--fondo),
      color-mix(in srgb, var(--fondo) 55%, var(--acento)));
  border: 1px solid color-mix(in srgb, var(--acento) 45%, transparent);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  cursor: pointer;
  transition:
    transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.5s ease,
    opacity 0.45s ease,
    filter 0.45s ease;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 20%,
      color-mix(in srgb, var(--acento) 35%, transparent),
      transparent 60%);
  opacity: 0.4;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px) scale(1.04);
  box-shadow: 0 22px 55px color-mix(in srgb, var(--acento) 40%, rgba(0, 0, 0, 0.6));
}

.card:hover::after {
  opacity: 0.75;
}

.grid.has-hover .card:not(:hover) {
  opacity: 0.6;
  filter: saturate(0.7) brightness(0.85);
}

.card img {
  width: 220px;
  height: 200px;
  object-fit: contain;
  margin: 12px;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.45));
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 1;
}

.card:hover img {
  transform: scale(1.08);
}

.card h2 {
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-align: center;
  text-transform: uppercase;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
  z-index: 1;
}

.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  background: linear-gradient(135deg,
      var(--fondo),
      color-mix(in srgb, var(--fondo) 45%, var(--acento)));
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.4s ease,
    visibility 0.4s ease;
  z-index: 100;
}

.overlay.open {
  opacity: 1;
  visibility: visible;
}

.overlay img {
  width: min(540px, 75vw);
  height: auto;
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.5));
  transform: scale(0.7);
  opacity: 0;
  transition:
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    opacity 0.6s ease;
}

.overlay.open img {
  transform: scale(1);
  opacity: 1;
}

.overlay h2 {
  text-align: center;
  color: #fff;
  font-size: 1rem;
  letter-spacing: 1px;
  text-shadow: 0 4px 16px rgba(0, 0, 0, 0.55);
  transform: translateY(16px);
  opacity: 0;
  transition:
    transform 0.45s ease 0.08s,
    opacity 0.45s ease 0.08s;
}

.overlay.open h2 {
  transform: translateY(0);
  opacity: 1;
}

.overlay .close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  background: color-mix(in srgb, var(--acento) 60%, rgba(0, 0, 0, 0.4));
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition:
    background 0.3s ease,
    transform 0.3s ease;
}

.overlay .close:hover {
  background: var(--acento);
  transform: rotate(90deg);
}