/* ════════════════════════════════════════════════════════════════════
   PORTFOLIO — dark glass cards, tight copy, matches arroweb's theme.
   ════════════════════════════════════════════════════════════════════ */

.portfolio {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem 0 5rem;
}

.portfolio-head {
  margin-bottom: 2.5rem;
}
.portfolio-head h1 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}
.portfolio-intro {
  font-size: 0.85rem;
  opacity: 0.65;
  margin: 0;
}

/* ── Grid ────────────────────────────────────────────────────────── */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

/* ── Card ────────────────────────────────────────────────────────── */
.portfolio-card {
  display: flex;
  flex-direction: column;
  background: rgba(20, 14, 30, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease,
              background 0.3s ease;
}
.portfolio-card:hover,
.portfolio-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(28, 20, 40, 0.65);
  outline: none;
}

.portfolio-card-media {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.25);
}
.portfolio-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.portfolio-card:hover .portfolio-card-media img {
  transform: scale(1.04);
}

.portfolio-card-body {
  padding: 1rem 1.1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.portfolio-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

.portfolio-card-desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.5;
  opacity: 0.72;
}

.portfolio-card-visit {
  margin-top: 0.3rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.6;
  transition: opacity 0.2s ease, gap 0.2s ease;
}
.portfolio-card:hover .portfolio-card-visit {
  opacity: 1;
  gap: 0.5rem;
}

.portfolio-empty {
  grid-column: 1 / -1;
  text-align: center;
  font-style: italic;
  opacity: 0.5;
  padding: 2.5rem 0;
}

/* ── Mobile ──────────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .portfolio { padding: 2rem 0 3rem; }
  .portfolio-head { margin-bottom: 1.75rem; }
  .portfolio-grid { gap: 1rem; }
}