/* ============================================================
   İYİP Creative — Portfolio Page Styles
   ============================================================ */

.portfolio-section {
  padding: var(--section-lg) 0;
  background: var(--color-cream);
}

/* Filter Bar */
.portfolio-filters {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.portfolio-filters__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-right: var(--space-2);
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.portfolio-item {
  opacity: 1;
  transform: scale(1);
  transition: opacity    var(--duration-slow) var(--ease-out),
              transform  var(--duration-slow) var(--ease-out);
}

.portfolio-item.is-hidden {
  display: none;
}

/* Detail Page */
.project-detail-section {
  padding: var(--section-md) 0;
  background: var(--color-cream);
}

.project-detail-grid {
  display: grid;
  grid-template-columns: 2fr 300px;
  gap: var(--space-16);
  align-items: start;
}

/* Before / After Slider */
.before-after {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 16/9;
  cursor: ew-resize;
  user-select: none;
  box-shadow: var(--shadow-xl);
}

.before-after__before,
.before-after__after {
  position: absolute;
  inset: 0;
}

.before-after__before {
  background: var(--color-cream-dark);
  z-index: 1;
  clip-path: inset(0 50% 0 0);
}

.before-after__after {
  background: var(--color-mint);
  z-index: 0;
}

.before-after img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.before-after__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: var(--color-white);
  z-index: 2;
  cursor: ew-resize;
  transform: translateX(-50%);
}

.before-after__handle-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-navy);
  font-size: 18px;
  font-weight: var(--weight-bold);
}

.before-after__label {
  position: absolute;
  bottom: var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  z-index: 3;
}

.before-after__label--before {
  left: var(--space-4);
  background: rgba(0,0,0,0.5);
  color: var(--color-white);
}

.before-after__label--after {
  right: var(--space-4);
  background: var(--color-gold);
  color: var(--color-white);
}

/* Project Sidebar */
.project-sidebar {
  position: sticky;
  top: 100px;
  width: 300px;
  flex-shrink: 0;
}

.project-sidebar__section {
  margin-bottom: var(--space-8);
}

.project-sidebar__heading {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-4);
}

.project-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.project-metric {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
}

.project-metric__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--weight-black);
  color: var(--color-navy);
  line-height: 1;
}

.project-metric__unit { color: var(--color-gold); }

.project-metric__label {
  font-size: var(--text-xs);
  color: var(--color-ink-soft);
  margin-top: var(--space-1);
}

@media (max-width: 1100px) {
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .project-detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .portfolio-grid { grid-template-columns: 1fr; }
}