/* ============================================================
   PORTFOLIO PAGE — additive styles only.
   Append to the end of styles-premium.css.
   Uses existing design tokens already defined at :root
   (--bg, --surface, --primary, --primary-dark, --accent, --text).
   No existing rule is modified or removed.
   ============================================================ */

.portfolio-hero {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
}

.portfolio-hero .eyebrow {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.portfolio-hero h1 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(2.25rem, 5vw, 3rem);
  color: var(--text);
  margin: 0 0 1rem;
}

.portfolio-hero-sub {
  color: var(--text);
  opacity: 0.8;
  font-size: 1.05rem;
  line-height: 1.6;
}

.portfolio-grid-section {
  padding: 1.5rem 1.5rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.portfolio-card {
  background: var(--surface);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(142, 255, 61, 0.12);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  border-color: rgba(142, 255, 61, 0.35);
}

.portfolio-compare {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg);
}

.portfolio-compare img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.portfolio-tag {
  display: inline-block;
  margin: 1.25rem 1.25rem 0;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.tag-restoration { background: rgba(142, 255, 61, 0.15); color: var(--primary); }
.tag-removal      { background: rgba(95, 227, 194, 0.15); color: var(--accent); }
.tag-portrait     { background: rgba(142, 255, 61, 0.15); color: var(--primary); }
.tag-composite    { background: rgba(95, 227, 194, 0.15); color: var(--accent); }
.tag-concept      { background: rgba(142, 255, 61, 0.15); color: var(--primary); }

.portfolio-card h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1.15rem;
  color: var(--text);
  margin: 0.75rem 1.25rem 0.5rem;
}

.portfolio-card p {
  color: var(--text);
  opacity: 0.75;
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 1.25rem 1.5rem;
}

.portfolio-cta {
  text-align: center;
  max-width: 640px;
  margin: 2rem auto 4rem;
  padding: 0 1.5rem;
}

.portfolio-cta h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--text);
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
}

.portfolio-cta p {
  color: var(--text);
  opacity: 0.8;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.portfolio-cta .btn {
  margin: 0 0.4rem;
}

@media (max-width: 600px) {
  .portfolio-hero { padding: 3rem 1.25rem 1.5rem; }
  .portfolio-grid { grid-template-columns: 1fr; }
}