/* ============================================================
   PORTFOLIO.CSS — Portafolio de proyectos
   ============================================================ */

.portfolio {
  background: var(--bg-surface);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: var(--space-4);
  margin-top: var(--space-12);
}

/* Proyecto destacado: ocupa 2 columnas */
.project-card.featured {
  grid-column: span 2;
}

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  group: '';
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  cursor: default;
}

.project-card:hover {
  border-color: rgba(27,110,243,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Placeholder de imagen */
.project-thumb {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-card.featured .project-thumb {
  aspect-ratio: 16/8;
}

/* Cuando el usuario coloque una imagen real */
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--t-slow);
}

.project-card:hover .project-thumb img {
  transform: scale(1.04);
}

/* Overlay de placeholder (reemplazar con imagen) */
.project-thumb-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-align: center;
}

.project-thumb-placeholder svg {
  width: 36px;
  height: 36px;
  stroke: var(--text-muted);
  fill: none;
  stroke-width: 1.25;
}

/* Overlay al hover */
.project-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(6,12,22,0.85) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--t-base);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

/* Contenido de la tarjeta */
.project-body {
  padding: var(--space-5);
}

.project-tags {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  color: var(--primary-light);
  background: var(--primary-subtle);
  border: 1px solid rgba(27,110,243,0.18);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.project-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: var(--space-2);
}

.project-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* CTA de portafolio */
.portfolio-cta {
  display: flex;
  justify-content: center;
  margin-top: var(--space-10);
}

@media (max-width: 900px) {
  .portfolio-grid {
    grid-template-columns: 1fr 1fr;
  }

  .project-card.featured {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Responsive adicional portafolio ── */
@media (max-width: 480px) {
  .project-body {
    padding: var(--space-4);
  }

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

  .portfolio-cta .btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}