/* ===== CERTIFICADOS ===== */
.certificados {
  padding: 80px 7%;
  background-color: #1c1c1c;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  position: relative;
  text-align: center;
}

.certificados::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, #1c1c1c 100%);
  pointer-events: none;
  z-index: 0;
}

.certificados > * {
  position: relative;
  z-index: 1;
}

/* Grid de certificados */
.certificados-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Tarjeta de certificado */
.cert-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  text-align: left;
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.cert-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(52, 152, 219, 0.08),
    rgba(5, 132, 80, 0.06)
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  border-radius: 22px;
}

.cert-card:hover {
  transform: translateY(-8px);
  border-color: rgba(52, 152, 219, 0.35);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.cert-card:hover::before {
  opacity: 1;
}
.cert-izq {
  position: relative;
  align-items: center;
  display: flex;
  justify-content: space-between;
  width: 100%;
}
/* Icono / badge del certificado */
.cert-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #3498db, #058450);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  box-shadow: 0 8px 20px rgba(52, 152, 219, 0.25);
}

.cert-icon svg {
  width: 26px;
  height: 26px;
  fill: #ffffff;
}

.cert-fecha {
  right: 0;
  position: relative;
  width: 60px;
  margin-top: 4px;
  padding: 5px 12px;
  border-radius: 50px;
  background: linear-gradient(
    135deg,
    rgba(52, 152, 219, 0.2),
    rgba(5, 132, 80, 0.2)
  );
  border: 1px solid rgba(52, 152, 219, 0.25);
  color: #7ec8e3;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.img-certificados {
  width: 100%;
  position: relative;
}

/* Textos */
.cert-body {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.cert-nombre {
  color: #ffffff;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0;
}

.cert-emisor {
  color: #a0a0a0;
  font-size: 0.9rem;
  margin: 0;
}

/* Enlace de verificación */
.cert-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #3498db;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  position: relative;
  z-index: 2;
  transition:
    color 0.25s ease,
    gap 0.25s ease;
}

.cert-link svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  transition: transform 0.25s ease;
}

.cert-link:hover {
  color: #5dade2;
  gap: 10px;
}

.cert-link:hover svg {
  transform: translate(2px, -2px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .certificados {
    padding: 60px 5%;
  }

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

@media (max-width: 480px) {
  .cert-card {
    padding: 22px 18px;
  }

  .cert-nombre {
    font-size: 1rem;
  }
}