/* ============================================
   NUTREON — Projects Page CSS
   Grid layout, filters, and card styles
   ============================================ */

/* ── Projects Page Hero ── */
.page-hero {
  padding: calc(var(--nav-height) + 5rem) 0 5rem;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.page-orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(37,99,235,0.15) 0%, transparent 70%);
  top: -200px;
  left: -100px;
}

.page-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,0.12) 0%, transparent 70%);
  top: -100px;
  right: -100px;
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-platform-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
  filter: drop-shadow(0 0 20px rgba(37,99,235,0.5));
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.page-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Search & Filter Bar ── */
.projects-controls {
  padding: 0 0 3rem;
  position: sticky;
  top: var(--nav-height);
  z-index: 100;
  background: linear-gradient(to bottom, var(--bg-primary), transparent);
  padding-top: 1.5rem;
}

.controls-inner {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-wrapper {
  flex: 1;
  min-width: 250px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: var(--transition);
  outline: none;
}

.search-input::placeholder { color: var(--text-muted); }

.search-input:focus {
  border-color: var(--accent-blue-light);
  background: rgba(37,99,235,0.05);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.filter-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.6rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: rgba(255,255,255,0.15);
  color: var(--text-secondary);
}

.filter-btn.active {
  background: rgba(37,99,235,0.15);
  border-color: rgba(37,99,235,0.4);
  color: var(--accent-blue-light);
}

.results-count {
  font-size: 0.83rem;
  color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
}

/* ── Projects Full Grid ── */
.projects-section {
  padding: 0 0 8rem;
}

.full-projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* ── Enhanced Card for Projects Page ── */
.project-card-full {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.project-card-full::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
  border: 1px solid rgba(37,99,235,0.5);
}

.project-card-full:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 80px rgba(0,0,0,0.4), 0 0 50px rgba(37,99,235,0.12);
  border-color: rgba(37,99,235,0.2);
}

.project-card-full:hover::after { opacity: 1; }

.card-thumb-full {
  width: 100%;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  position: relative;
  overflow: hidden;
}

.card-thumb-full::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(0,0,0,0.4));
}

.card-body-full {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.card-status {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-cyan);
}

.status-dot {
  width: 6px;
  height: 6px;
  background: currentColor;
  border-radius: 50%;
}

.card-year {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.card-title-full {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.card-desc-full {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.25rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

.card-tags-full {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.card-tag-full {
  padding: 0.18rem 0.55rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.card-link {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37,99,235,0.1);
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: var(--radius-sm);
  color: var(--accent-blue-light);
  transition: var(--transition);
  flex-shrink: 0;
}

.card-link:hover {
  background: rgba(37,99,235,0.2);
  transform: translateX(3px);
}

/* ── Empty State ── */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 5rem 2rem;
  color: var(--text-muted);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

/* ── Back Button ── */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: var(--transition);
  margin-bottom: 2rem;
}

.back-link:hover {
  color: var(--text-secondary);
  transform: translateX(-4px);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .full-projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .full-projects-grid {
    grid-template-columns: 1fr;
  }

  .controls-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-group {
    justify-content: flex-start;
  }
}