/* ============================
   MARV — portfolio.css
   ============================ */

/* Active nav link */
.nav-active {
  color: var(--accent) !important;
}
.nav-active::after {
  width: 100% !important;
}

/* ============================
   PAGE HEADER
   ============================ */
.page-header {
  padding: 8rem 3rem 0;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 600px; height: 400px;
  background: radial-gradient(ellipse at top right, rgba(0,245,195,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.page-header-inner {
  max-width: 700px;
  animation: fadeUp 0.8s ease both;
}

.page-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(2.8rem, 7vw, 6rem);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 1rem;
}

.page-sub {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 3rem;
}

/* ============================
   FILTER ROW
   ============================ */
.filter-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-bottom: 2rem;
  animation: fadeUp 0.8s 0.2s ease both;
  opacity: 0;
}

.filter-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.5rem 1.1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--fg-muted);
  cursor: none;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.filter-btn:hover {
  border-color: rgba(0,245,195,0.4);
  color: var(--fg);
}

.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ============================
   PORTFOLIO MAIN
   ============================ */
.portfolio-main {
  padding: 4rem 3rem;
  min-height: 50vh;
}

/* ============================
   PROJECTS GRID
   ============================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5px;
  background: var(--border);
  border: 1.5px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}

/* ============================
   PROJECT CARD
   ============================ */
.project-card {
  background: var(--bg);
  display: flex;
  flex-direction: column;
  transition: background 0.3s;
  position: relative;
}

.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 0;
  background: var(--accent);
  transition: height 0.4s ease;
}

.project-card:hover {
  background: rgba(0,245,195,0.03);
}

.project-card:hover::after {
  height: 100%;
}

/* Project image */
.project-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg2);
  position: relative;
}

.project-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
  filter: saturate(0.8);
}

.project-card:hover .project-img img {
  transform: scale(1.04);
  filter: saturate(1);
}

/* Placeholder when no image */
.placeholder-img {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(0,245,195,0.03) 10px,
      rgba(0,245,195,0.03) 11px
    );
  border-bottom: 1px solid var(--border);
}

.placeholder-label {
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(232,234,242,0.15);
  border: 1px dashed rgba(232,234,242,0.1);
  padding: 0.5rem 1rem;
  border-radius: 2px;
}

/* Project info */
.project-info {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-tag {
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(0,245,195,0.25);
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
}

.project-year {
  font-size: 0.65rem;
  color: var(--fg-muted);
  letter-spacing: 0.08em;
}

.project-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.project-desc {
  font-size: 0.78rem;
  line-height: 1.8;
  color: var(--fg-muted);
  flex: 1;
}

/* Tech stack tags */
.project-tech {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-tech li {
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  background: var(--muted, rgba(255,255,255,0.04));
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
  border: 1px solid var(--border);
}

/* Project links */
.project-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.btn-sm {
  padding: 0.6rem 1.25rem !important;
  font-size: 0.65rem !important;
}

/* ============================
   EMPTY STATE
   ============================ */
.empty-state {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 6rem 2rem;
  color: var(--fg-muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.empty-icon {
  font-size: 2rem;
  color: rgba(0,245,195,0.3);
}

/* ============================
   PORTFOLIO CTA
   ============================ */
.portfolio-cta {
  border-top: 1px solid var(--border);
  padding: 6rem 3rem;
  background: var(--bg2);
}

.portfolio-cta-inner {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.portfolio-cta-inner h2 {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
}

.portfolio-cta-inner p {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 900px) {
  .page-header {
    padding: 7rem 1.5rem 0;
  }

  .portfolio-main {
    padding: 3rem 1.5rem;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-cta {
    padding: 4rem 1.5rem;
  }
}