/* ============================================================
   PROJECTS SECTION
   ============================================================ */
#projects { background: transparent; /* Changed from var(--bg-secondary) so new animated bg shows */ }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* ============================================================
   PROJECT FILTER NAVIGATION
   ============================================================ */
#project-filter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.filter-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  padding: 0.5rem 1.2rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.filter-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.filter-btn span {
  position: relative;
  z-index: 1;
}

.filter-btn:hover {
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.filter-btn.active {
  border-color: var(--accent-primary);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-btn);
}

.filter-btn.active::after {
  opacity: 1;
}

/* ============================================================
   PREMIUM PROJECT CARDS
   ============================================================ */
.project-card-premium {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.35s ease,
              box-shadow 0.35s ease,
              background 0.35s ease;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.project-card-premium::before {
  content: "";
  position: absolute;
  top: 0; left: 0; width: 100%; height: 3px;
  background: var(--gradient-hero);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.project-card-premium:hover {
  transform: translateY(-6px) scale(1.02) translateZ(0);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow);
  background: var(--bg-card-hover);
}

.project-card-premium:hover::before {
  opacity: 1;
}

.project-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  width: 100%;
  max-width: 100%;
  margin: 0;
  text-align: justify;
  text-justify: inter-word;
  text-align-last: left;
  hyphens: auto;
  -webkit-hyphens: auto;
  text-wrap: pretty;
  flex: 1;
}

.project-tags-minimal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.project-tags-minimal .tag {
  background: var(--tag-bg);
  color: var(--tag-color);
  border: 1px solid var(--tag-border);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
}

.project-meta-data {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
}

.meta-stats {
  display: flex;
  gap: 1rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.meta-item svg {
  width: 14px;
  height: 14px;
  fill: currentColor;
}

.project-cta-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.project-card-premium:hover .project-cta-text {
  color: var(--accent-primary);
}

.project-link-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.project-card-premium:hover .project-link-icon {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-color: var(--accent-primary);
  transform: rotate(45deg);
}

.project-group-wrap {
  margin-bottom: 4rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.project-group-wrap.hidden {
  display: none;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  #project-filter-nav {
    gap: 0.6rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
  }

  .filter-btn {
    padding: 0.4rem 0.9rem;
    font-size: 0.78rem;
  }

  .project-card-premium {
    padding: 1.5rem;
  }

  .project-title {
    font-size: 1.05rem;
  }

  .project-desc {
    font-size: 0.85rem;
  }

  .project-meta-data {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .project-group-wrap {
    margin-bottom: 2.5rem;
  }
}

@media (max-width: 480px) {
  .projects-grid {
    gap: 1.25rem;
  }

  #project-filter-nav {
    gap: 0.5rem;
  }

  .filter-btn {
    padding: 0.35rem 0.7rem;
    font-size: 0.72rem;
  }

  .project-card-premium {
    padding: 1.25rem;
    border-radius: 10px;
  }

  .project-title {
    font-size: 1rem;
  }

  .project-desc {
    font-size: 0.82rem;
    line-height: 1.5;
  }

  .project-tags-minimal .tag {
    font-size: 0.68rem;
    padding: 0.15rem 0.45rem;
  }

  .meta-item {
    font-size: 0.78rem;
  }

  .project-cta-text {
    font-size: 0.7rem;
  }

  .project-link-icon {
    width: 28px;
    height: 28px;
    border-radius: 6px;
  }
}