/* ========================
   Certificate Badges Section (index.html)
   ======================== */
.cert-badges-section {
  padding: 4rem 2rem;
  border-top: 1px solid var(--border);
}

.cert-badges-container {
  max-width: 1200px;
  margin: 0 auto;
}

.cert-badges-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Individual Badge Card */
.cert-badge-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.cert-badge-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

.cert-badge-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition);
}

.cert-badge-card:hover::before {
  opacity: 1;
}

/* Badge Icon */
.cert-badge-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.cert-badge-icon::before {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  padding: 3px;
  background: var(--accent-gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.6;
}

.cert-badge-icon-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
}

/* AWS Badge */
.cert-badge-card.aws .cert-badge-icon-inner {
  background: linear-gradient(135deg, rgba(255, 153, 0, 0.15), rgba(255, 153, 0, 0.05));
}

/* Linux Badge */
.cert-badge-card.linux .cert-badge-icon-inner {
  background: linear-gradient(135deg, rgba(255, 204, 51, 0.12), rgba(255, 204, 51, 0.04));
}

/* Network Badge */
.cert-badge-card.network .cert-badge-icon-inner {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(0, 212, 255, 0.04));
}

/* Badge Content */
.cert-badge-name {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  line-height: 1.4;
}

.cert-badge-issuer {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
}

.cert-badge-date {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  color: #28ca41;
  background: rgba(40, 202, 65, 0.1);
  border: 1px solid rgba(40, 202, 65, 0.25);
}

.cert-badge-date::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #28ca41;
}

.cert-badge-id {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.68rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
  .cert-badges-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cert-badge-card {
    padding: 1.5rem 1.2rem;
  }

  .cert-badge-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
  }

  .cert-badge-icon-inner {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .cert-badges-section {
    padding: 3rem 1rem;
  }
}