/* ============================================
   CERTIFICATIONS PAGE STYLES
   Strategy: show only the TOP portion of the certificate
   (where the name, logo, and title are) using object-fit:cover
   + object-position:top — looks clean, no tiny unreadable text
   ============================================ */

/* ---- Specializations ---- */
.spec-section { margin-bottom: 5rem; }
.spec-section > p { color: var(--text-secondary); font-size: 1rem; margin-bottom: 2.5rem; }

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);   /* always 3 per row */
  gap: 1.5rem;
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);            /* same radius as cert-card, not radius-lg */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
}
.spec-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-gradient);
  z-index: 1;
}
.spec-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-accent);
}

/* Slightly taller than cert-card (155px) but not as tall as the old 195px */
.spec-thumb {
  width: 100%;
  height: 172px;
  background: #ffffff;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.spec-thumb img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}
.spec-card:hover .spec-thumb img {
  transform: scale(1.03);
}

.spec-thumb-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1a1040 0%, #0d1a30 100%);
  position: absolute;
  inset: 0;
}
.spec-thumb-placeholder i { font-size: 3rem; color: var(--accent-purple); opacity: 0.6; }
.spec-thumb-placeholder span {
  font-size: 0.8rem; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.08em;
}

.spec-body {
  padding: 1.25rem;          /* match cert-body padding */
  flex: 1;
  display: flex;
  flex-direction: column;
}
.spec-label {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(139,92,246,0.12);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: 100px;
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent-purple);
  margin-bottom: 0.6rem;
}
.spec-body h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.75rem; }

.skills-label {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-muted); margin-bottom: 0.6rem;
}
.skills-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }

.cred-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.55rem 1.2rem;
  background: transparent; border: 1px solid var(--border-accent);
  border-radius: 7px; color: var(--accent-purple);
  font-size: 0.85rem; font-weight: 600;
  transition: all var(--transition);
  margin-top: auto; align-self: flex-start;
}
.cred-btn:hover {
  background: var(--accent-gradient);
  border-color: transparent; color: white;
  transform: translateY(-2px);
}
.cred-btn i { font-size: 0.8rem; }

/* ============================================
   CERT GROUPS — individual course certificates
   ============================================ */
.cert-group { margin-bottom: 4.5rem; }

.cert-group-header {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.75rem; padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.cert-group-icon {
  width: 38px; height: 38px; border-radius: 8px;
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border-accent);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cert-group-icon i {
  background: var(--accent-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.cert-group-header h2 { font-size: 1.25rem; font-weight: 700; }

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

/* ---- Individual cert card ---- */
.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.cert-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-accent);
}

/*
  Individual cert thumbnail:
  - White bg, fixed height
  - object-fit: cover + object-position: top
    → shows top ~55% of the certificate (logo + name + course title)
    → fine print / verify URL at bottom is hidden — looks much cleaner
*/
.cert-thumb {
  width: 100%;
  height: 155px;            /* shows top ~50% of cert — logo + name + course title */
  background: #ffffff;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
}
.cert-thumb img {
  width: 100%;
  height: auto;             /* natural width scaling, bottom gets cropped off */
  display: block;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}
.cert-card:hover .cert-thumb img {
  transform: scale(1.04);
}

.cert-thumb-placeholder {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #0d1421 0%, #1a1040 100%);
  position: absolute;
  inset: 0;
}
.cert-thumb-placeholder i { font-size: 2.5rem; color: var(--accent-cyan); opacity: 0.5; }

.cert-body {
  padding: 1.25rem;
  flex: 1; display: flex; flex-direction: column;
}
.cert-body h4 {
  font-size: 0.9rem; font-weight: 700;
  line-height: 1.45; margin-bottom: 0.75rem;
  min-height: 2.6em;
}
.cert-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-bottom: 1rem; }
.cert-tag {
  padding: 0.2rem 0.55rem;
  background: rgba(6,182,212,0.1);
  border: 1px solid rgba(6,182,212,0.2);
  border-radius: 100px; color: var(--accent-cyan);
  font-size: 0.7rem; font-weight: 500;
}
.cert-cred-btn {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.8rem; font-weight: 600;
  color: var(--accent-purple);
  margin-top: auto;
  transition: color var(--transition);
}
.cert-cred-btn i { font-size: 0.75rem; }
.cert-cred-btn:hover { color: var(--accent-cyan); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .cert-grid { grid-template-columns: 1fr; }
  .spec-grid { grid-template-columns: 1fr; }
}