/* cards.css */

/* Variables globales */
:root {
  --card-width: 280px;
  --card-gap: 1.5rem;
  --card-radius: 8px;
  --card-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;
  --card-hover-lift: -6px;
  --card-hover-shadow: rgba(0, 0, 0, 0.2) 0px 8px 20px;
  --btn-bg: #005f99;
  --btn-color: #fff;
}

/* Contenedor: grid responsivo */
.cards {
  display: grid;
  /*display: flex; */ /*  Para tarjetas mas anchas */
  grid-template-columns: repeat(auto-fill, minmax(var(--card-width), 1fr));
  gap: var(--card-gap);
  padding: var(--card-gap);
  overflow-x: auto;  /*  Para tarjetas mas anchas */
  /*padding: 1rem;   /*  Para tarjetas mas anchas */
}

/* Tarjeta base */
.card {
  background: #fff;
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* Hover / focus */
.card:hover,
.card:focus-within {
  transform: translateY(var(--card-hover-lift));
  box-shadow: var(--card-hover-shadow);
}

/* Imagen */
.card__img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 16/9;
}

/* Cuerpo */
.card__body {
  padding: 1rem;
  flex-grow: 1;
}

.card__title {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.card__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.4;
  color: #444;
}

/* Pie con botón */
.card__footer {
  padding: 0.75rem 1rem;
  text-align: right;
  background: #f9f9f9;
}

.card__btn {
  padding: 0.5rem 0.8rem;
  background: var(--btn-bg);
  color: var(--btn-color);
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.card__btn:hover {
  background: #004770;
}

/*  Crear variantes (clase extra): INICIO */

.card--alt {
  background: #f0f4f8;
  --card-shadow: rgba(0, 0, 0, 0.05) 0px 2px 6px;
}
/*  Crear variantes (clase extra): FINAL */

/*  Modo oscuro activable con un selector padre INICIO */
.dark-mode {
  --btn-bg: #3399ff;
  --card-shadow: rgba(0, 0, 0, 0.3) 0px 6px 16px;
  color: #eee;
}
/*  Modo oscuro activable con un selector padre FINAL */