/* ================================================================
   Sole_f1t Personal Blog — certificates.css
   Styles for certificates.html (gallery + filter design)
   ================================================================ */

/* Page heading */
.cert-page-head {
  text-align: center;
  padding: 40px 0 32px;
}
.cert-page-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}
.cert-page-sub {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Filter bar */
.cert-filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}
.cert-filter-btn {
  padding: 9px 22px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  font-family: 'Cairo', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}
.cert-filter-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}
.cert-filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a1a1a;
}

/* Gallery grid */
.cert-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

/* Individual card */
.cert-gallery-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition);
  animation: certFadeIn 0.35s ease forwards;
}
.cert-gallery-card:hover {
  border-color: rgba(250,168,26,0.35);
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}

/* Certificate image preview */
.cert-preview {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: #fff;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.cert-gallery-card:hover .cert-preview img { transform: scale(1.03); }

/* Hover overlay */
.cert-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.cert-gallery-card:hover .cert-overlay { opacity: 1; }

.cert-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  background: var(--accent);
  color: #1a1a1a;
  font-family: 'Cairo', sans-serif;
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(250,168,26,0.45);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}
.cert-view-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
  box-shadow: 0 6px 28px rgba(250,168,26,0.65);
}
.cert-view-btn i { font-size: 1.1rem; }

/* Placeholder when no image */
.cert-preview-placeholder {
  width: 100%;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(250,168,26,0.07) 0%, rgba(255,255,255,0.03) 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
}
.cert-preview-placeholder i { font-size: 2.5rem; color: var(--accent); opacity: 0.5; }
.cert-preview-placeholder span { font-size: 0.8rem; font-weight: 600; }

/* Card info section */
.cert-body {
  padding: 18px 20px 20px;
}
.cert-body-name {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}
.cert-body-row {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 5px;
}
.cert-body-row i { color: var(--accent); font-size: 1rem; flex-shrink: 0; }
.cert-logo {
  width: 18px; height: 18px;
  object-fit: contain;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}
.cert-body-desc {
  margin-top: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1.6;
}

.cert-body-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.cert-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--accent-dim);
  border: 1px solid rgba(250,168,26,0.25);
  color: var(--accent);
  transition: background var(--transition), border-color var(--transition);
}
.cert-gallery-card:hover .cert-tag {
  background: rgba(250,168,26,0.18);
  border-color: rgba(250,168,26,0.4);
}

@keyframes certFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 600px) {
  .cert-gallery { grid-template-columns: 1fr; }
  .cert-filter-btn { padding: 8px 16px; font-size: 0.82rem; }
}