:root {
  --color-primary: #0D633A;
  --card-bg: #E5E7EB;
  --text-color: #4a4a4a;
  --icon-green: #12862E;
}

/* ===== CONTENEDOR ===== */
.ei-container {
  max-width: 1300px;
  margin: 40px auto;
  padding: 0 16px;
}

/* ===== TITULO ===== */
.ei-title {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-primary);
  border-left: 6px solid var(--color-primary);
  padding-left: 12px;
  margin-bottom: 25px;
}

/* ===== GRID MOBILE FIRST ===== */
.ei-flexgrid {
  display: grid;
  grid-template-columns: 1fr; /* 🔥 1 columna móvil */
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

/* 📱 móviles medianos */
@media (min-width: 480px) {
  .ei-flexgrid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 📲 tablets */
@media (min-width: 768px) {
  .ei-flexgrid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* 💻 desktop */
@media (min-width: 1024px) {
  .ei-flexgrid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

/* ===== CARD ===== */
.ei-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  height: 240px; /* 🔥 base móvil */
  border-radius: 12px;
  background: var(--card-bg);
  text-decoration: none;
  padding: 20px;
  text-align: center;
  box-shadow: 0 3px 8px rgba(0,0,0,0.08);

  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* HOVER */
.ei-card:hover {
  transform: scale(1.04);
  box-shadow: 0 10px 20px rgba(0,0,0,0.12);
}

/* ===== ICONO ===== */
.ei-card__icon {
  width: 100px;
  height: 100px;
  margin-bottom: 10px;
}

.ei-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;

  filter: brightness(0) saturate(100%)
          invert(36%) sepia(82%) saturate(520%) hue-rotate(95deg)
          brightness(85%) contrast(95%);
}

/* ===== TEXTO ===== */
.ei-card__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-color);
  text-transform: uppercase;
  line-height: 1.3;
}

/* ===== TABLET ===== */
@media (min-width: 768px) {
  .ei-card {
    height: 260px;
  }

  .ei-card__icon {
    width: 115px;
    height: 115px;
  }

  .ei-card__title {
    font-size: 14px;
  }
}

/* ===== DESKTOP ===== */
@media (min-width: 1024px) {
  .ei-card {
    height: 300px;
    padding: 30px;
  }

  .ei-card__icon {
    width: 130px;
    height: 130px;
  }

  .ei-card__title {
    font-size: 15px;
  }
}

/* ===== ACCESIBILIDAD ===== */
.ei-card:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}