/* ============================================
   CertGuides — Certification Page Styles
   ============================================ */

/* --- Breadcrumb --- */
.cert-breadcrumb {
  padding: 100px 0 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.cert-breadcrumb a {
  color: var(--text-muted);
}
.cert-breadcrumb a:hover {
  color: var(--cyan-500);
}
.cert-breadcrumb .sep {
  margin: 0 8px;
  opacity: 0.4;
}
.cert-breadcrumb .current {
  color: var(--text-secondary);
}

/* --- Cert Hero --- */
.cert-hero {
  padding: 20px 0 60px;
  background: var(--gradient-hero);
  position: relative;
}

.cert-hero-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}

.cert-vendor-badge,
.cert-code-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-right: 8px;
  margin-bottom: 16px;
}

.cert-vendor-badge {
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  color: var(--cyan-300);
}

.cert-code-badge {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.2);
  color: var(--amber-400);
}

.cert-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 16px;
  line-height: 1.15;
}

.cert-excerpt {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.cert-meta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.cert-meta-tag {
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

.cert-meta-tag.difficulty-beginner { color: #4ade80; border-color: rgba(74,222,128,0.2); }
.cert-meta-tag.difficulty-intermediate { color: var(--cyan-300); border-color: rgba(34,211,238,0.2); }
.cert-meta-tag.difficulty-advanced { color: var(--amber-400); border-color: rgba(251,191,36,0.2); }
.cert-meta-tag.difficulty-expert { color: #f87171; border-color: rgba(248,113,113,0.2); }

.cert-hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- Sidebar Card --- */
.sidebar-card {
  padding: 28px;
}

.sidebar-card h3 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--glass-border);
}

.sidebar-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.sidebar-label {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.sidebar-value {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.sidebar-value.price {
  color: var(--amber-400);
  font-size: 1.1rem;
}

.sidebar-btn {
  width: 100%;
  justify-content: center;
  margin-top: 20px;
}

/* --- Content Grid --- */
.cert-content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}

/* --- Article --- */
.cert-article {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.cert-article h2 {
  font-size: 1.6rem;
  margin: 40px 0 16px;
  color: var(--text-primary);
}

.cert-article h3 {
  font-size: 1.25rem;
  margin: 32px 0 12px;
  color: var(--text-primary);
}

.cert-article p {
  margin-bottom: 16px;
}

.cert-article ul, .cert-article ol {
  margin: 16px 0 16px 24px;
}

.cert-article li {
  margin-bottom: 8px;
}

.cert-article strong {
  color: var(--text-primary);
}

.cert-article a {
  color: var(--cyan-500);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --- Sticky Sidebar --- */
.cert-sidebar-sticky {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* --- Study Guide CTA --- */
.study-guide-cta {
  background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
}

.sg-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.study-guide-cta h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.study-guide-cta p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.sg-btn {
  width: 100%;
  justify-content: center;
  font-size: 0.85rem;
}

/* --- Get Started Card --- */
.expert-preparation-card {
  text-align: center;
  padding: 28px;
}

.pap-icon {
  font-size: 2rem;
  margin-bottom: 10px;
}

.expert-preparation-card h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  color: var(--amber-400);
}

.expert-preparation-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* --- Related Grid --- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.related-card {
  padding: 28px;
  text-decoration: none;
  display: block;
}

.related-card:hover {
  border-color: rgba(34, 211, 238, 0.2);
}

.related-vendor {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cyan-500);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.related-card h3 {
  font-size: 1.05rem;
  margin: 8px 0;
  color: var(--text-primary);
}

.related-card p {
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.related-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--cyan-500);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .cert-hero-grid,
  .cert-content-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .cert-sidebar-sticky {
    position: static;
  }
}