/* ── SHARED PAGE HERO ── */
.page-hero {
  padding-top: 160px;
  padding-bottom: var(--space-10);
  background: var(--clr-bg);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--clr-border);
}

.page-hero__ambient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 80% at var(--ax, 20%) var(--ay, 40%),
    var(--clr-sage-muted) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero__content { max-width: 640px; }

.page-hero__sub {
  font-size: var(--text-lg);
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin-top: var(--space-3);
  max-width: 520px;
}

/* ── FILTER BAR ── */
.projects-filter {
  padding-block: var(--space-4);
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  position: sticky;
  top: 0px;
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 2px;
}
.filter-bar::-webkit-scrollbar { display: none; }

.filter-btn {
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: 100px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--clr-text-muted);
  background: transparent;
  border: 1px solid transparent;
  transition: all var(--dur-fast) var(--ease-out);
  cursor: pointer;
}

.filter-btn:hover {
  color: var(--clr-sage);
  border-color: var(--clr-sage-glow);
  background: var(--clr-sage-muted);
}

.filter-btn.active {
  color: #fff;
  background: var(--gradient-sage);
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

/* ── PROJECTS MASONRY ── */
.projects-main { background: var(--clr-bg); }

.projects-masonry {
  columns: 3;
  column-gap: var(--space-3);
}

.proj-card {
  break-inside: avoid;
  margin-bottom: var(--space-3);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
  transition: all var(--dur-base) var(--ease-out), opacity 0.4s var(--ease-out);
}

.proj-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 15% 85%, var(--clr-sage-muted), transparent);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
}

.proj-card:hover::before { opacity: 1; }

.proj-card.hidden {
  display: none;
}

.proj-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.proj-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.proj-card__year {
  font-size: var(--text-xs);
  color: var(--clr-text-faint);
  flex-shrink: 0;
  padding-top: 2px;
}

.proj-card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--clr-text);
  line-height: 1.2;
  position: relative;
  z-index: 1;
}

.proj-card[data-size="large"] .proj-card__title {
  font-size: var(--text-2xl);
}

.proj-card__desc {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
  position: relative;
  z-index: 1;
  flex: 1;
}

.proj-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-1);
  position: relative;
  z-index: 1;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.proj-card__tech {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.tech-chip {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--clr-surface-alt);
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
}

.proj-card__domain {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--clr-sage);
  letter-spacing: 0.04em;
}

/* Empty state */
.proj-empty {
  text-align: center;
  padding: var(--space-12) 0;
  color: var(--clr-text-muted);
  font-size: var(--text-lg);
}

/* ── FUTURE CTA ── */
.future-cta {
  padding-block: var(--space-12);
  background: var(--clr-surface-alt);
  border-top: 1px solid var(--clr-border);
}

.future-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-6);
}

@media (max-width: 768px) {
  .future-cta__inner { flex-direction: column; align-items: flex-start; }
}

/* Responsive */
@media (max-width: 1024px) {
  .projects-masonry { columns: 2; }
}

@media (max-width: 640px) {
  .projects-masonry { columns: 1; }
}