/* ============================================================
   PORTFOLIO PAGE
   ============================================================ */

.page-header { padding-top: calc(var(--space-16) + 80px); }
.page-header__headline { margin-top: var(--space-2); max-width: 800px; }
.page-header__sub { max-width: 560px; margin-top: var(--space-4); }

/* ── Filter Bar ─────────────────────────────────────────── */
.portfolio-filter {
  position: sticky;
  top: 72px;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) 0;
}

.portfolio-filter__inner {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 var(--gutter);
  max-width: var(--content-width);
  margin: 0 auto;
}

.portfolio-filter__inner::-webkit-scrollbar { display: none; }

.pf-btn {
  flex-shrink: 0;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-muted);
  background: transparent;
  border: 1.5px solid transparent;
  transition: all var(--dur-base) var(--ease-out);
  cursor: pointer;
}

.pf-btn:hover {
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.pf-btn.active {
  color: var(--color-white);
  background: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

[data-theme="dark"] .pf-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
}


/* ── Portfolio Items ─────────────────────────────────────── */
.portfolio-item { padding: var(--space-16) 0; }

.portfolio-item__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.portfolio-item--reverse .portfolio-item__inner {
  direction: rtl;
}

.portfolio-item--reverse .portfolio-item__inner > * {
  direction: ltr;
}

.portfolio-item__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.portfolio-item__content .label { margin-bottom: 0; }

.portfolio-item__img {
  width: 100%;
  transition: transform var(--dur-slow) var(--ease-out);
}

.portfolio-item:hover .portfolio-item__img {
  transform: scale(1.02);
}

.portfolio-item__media { overflow: hidden; border-radius: var(--radius-lg); }

.portfolio-item__stats {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  list-style: none;
}

.portfolio-item__stats li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-2);
}

.portfolio-item__stats strong {
  color: var(--color-text-primary);
  font-weight: var(--weight-semibold);
  min-width: 64px;
}

/* Apps grid */
.portfolio-apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

/* Creative grid */
.portfolio-creative-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}

/* Hidden items (filter) */
.portfolio-item.hidden {
  display: none;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .portfolio-item__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .portfolio-item--reverse .portfolio-item__inner { direction: ltr; }
  .portfolio-item { padding: var(--space-10) 0; }
}

@media (max-width: 768px) {
  .portfolio-filter { top: 64px; }
}