/* ═══════════════════════════════════════════════════
   PROJECTS PAGE
   ═══════════════════════════════════════════════════ */

/* ─── Page Hero ──────────────────────────────────── */
.projects-page-hero {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.projects-page-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 760px;
}

/* Back link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition-fast), gap var(--transition-fast);
  width: fit-content;
}

.back-link:hover {
  color: var(--color-purple);
  gap: 0.75rem;
}

/* Decorative blobs */
.projects-page-blob {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

.projects-page-blob--1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.10), transparent 70%);
  top: -120px;
  right: -80px;
}

.projects-page-blob--2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.08), transparent 70%);
  bottom: -40px;
  left: -60px;
}

.projects-page-hero .section-container {
  position: relative;
  z-index: 1;
}

/* ─── Filter Bar ─────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.filter-btn {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  transition: all var(--transition-base);
  cursor: pointer;
}

.filter-btn:hover {
  color: var(--color-purple);
  border-color: var(--color-purple-light);
  background: var(--color-purple-pale);
}

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

/* ─── Projects Grid Section ──────────────────────── */
.projects-page-grid-section {
  padding-bottom: var(--space-3xl);
}

/* 3-column grid on desktop */
.projects-all-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* Card hide/show for filtering */
.project-card.hidden {
  display: none;
}

/* ─── Project Badge (for internal/private projects) ─ */
.project-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.675rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: rgba(124, 58, 237, 0.08);
  color: var(--color-purple);
  border: 1px solid rgba(124, 58, 237, 0.2);
  vertical-align: middle;
}

/* ─── Caliper image wrapper ──────────────────────── */
.project-img-wrapper--caliper {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
}

/* ─── Empty state ────────────────────────────────── */
.projects-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 500;
}

/* ─── Responsive ─────────────────────────────────── */

/* Tablet: 2 columns */
@media (max-width: 1100px) {
  .projects-all-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

/* Mobile: 1 column */
@media (max-width: 640px) {
  .projects-all-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .projects-page-hero {
    padding-top: calc(var(--nav-height) + var(--space-md));
    padding-bottom: var(--space-md);
  }

  .filter-bar {
    gap: 0.375rem;
  }

  .filter-btn {
    font-size: 0.8125rem;
    padding: 0.4rem 0.9rem;
  }
}