/* certifications/certifications.css */
nav .nav-logo { text-decoration: none; color: var(--fg); }
.nav-links-desktop .nav-active { color: var(--fg) !important; }

.cert-main { padding: 140px 48px 96px; max-width: 1200px; margin: 0 auto; }

.cert-header { display: flex; align-items: baseline; gap: 24px; margin-bottom: 64px; }
.cert-count { margin-left: auto; font-size: 12px; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

.cert-empty { color: var(--muted); font-size: 14px; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }

.cert-card {
  background: var(--tag-bg);
  border: 1px solid var(--line);
  padding: 32px;
  display: flex; flex-direction: column; gap: 12px;
  transition: background 0.25s, border-color 0.25s;
}
.cert-card:hover { background: var(--fg); border-color: var(--fg); }
.cert-card:hover .cert-name,
.cert-card:hover .cert-issuer,
.cert-card:hover .cert-date { color: var(--bg); }
.cert-card:hover .cert-tag { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); color: rgba(255,255,255,0.8); }
.cert-card:hover .cert-btn { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.9); }

.cert-card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }

.cert-tag {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--line); padding: 3px 10px;
  border-radius: 100px; background: var(--bg);
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}
.cert-date { font-size: 11px; color: var(--muted); letter-spacing: 0.06em; transition: color 0.25s; }

.cert-name {
  font-family: var(--serif); font-size: clamp(18px, 2vw, 24px);
  letter-spacing: -0.01em; line-height: 1.15;
  transition: color 0.25s;
}

.cert-issuer { font-size: 13px; color: var(--muted); transition: color 0.25s; }

.cert-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.cert-btn {
  font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--line); padding: 6px 14px;
  color: var(--fg);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.cert-btn:not(.cert-card:hover .cert-btn):hover { background: var(--fg); color: var(--bg); }

@media (max-width: 900px) {
  .cert-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .cert-main { padding: 100px 16px 64px; }
  .cert-grid { grid-template-columns: 1fr; gap: 8px; }
  .cert-card { padding: 24px; }
}

@media (prefers-color-scheme: dark) {
  .cert-card:hover .cert-tag { background: rgba(0,0,0,0.07); border-color: rgba(0,0,0,0.18); color: rgba(0,0,0,0.7); }
  .cert-card:hover .cert-btn { background: rgba(0,0,0,0.07); border-color: rgba(0,0,0,0.2); color: rgba(0,0,0,0.8); }
}
html[data-theme="dark"] .cert-card:hover .cert-tag { background: rgba(0,0,0,0.07); border-color: rgba(0,0,0,0.18); color: rgba(0,0,0,0.7); }
html[data-theme="dark"] .cert-card:hover .cert-btn { background: rgba(0,0,0,0.07); border-color: rgba(0,0,0,0.2); color: rgba(0,0,0,0.8); }
html[data-theme="light"] .cert-card:hover .cert-tag { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); color: rgba(255,255,255,0.8); }
html[data-theme="light"] .cert-card:hover .cert-btn { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.9); }