/* ==========================================================
   PORTFOLIO.CSS — Sección de trabajos realizados
   ========================================================== */

#portfolio {
  background: var(--bg);
}

/* ---- Filtros ---- */
.pf-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.f-btn {
  padding: 7px 18px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--t);
  font-family: inherit;
}

.f-btn.on,
.f-btn:hover {
  background: var(--grad);
  border-color: transparent;
  color: #fff;
}

/* ---- Grid de portfolio ---- */
.pf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}

/* ---- Tarjeta de proyecto ---- */
.pf-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  transition: var(--t);
  cursor: pointer;
}

.pf-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 198, 255, 0.22);
  box-shadow: var(--shadow);
}

/* ---- Thumbnail del proyecto ---- */
.pf-thumb {
  height: 190px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pf-thumb .ti {
  font-size: 3.2rem;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 16px currentColor);
  transition: var(--t);
}

.pf-card:hover .ti {
  transform: scale(1.1);
}

/* Overlay con botón al hacer hover */
.pf-ov {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--t);
}

.pf-card:hover .pf-ov {
  opacity: 1;
}

.ov-btn {
  padding: 9px 18px;
  border-radius: 50px;
  background: #fff;
  color: var(--bg);
  font-weight: 600;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}

.ov-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
}

/* ---- Información del proyecto ---- */
.pf-info {
  padding: 18px;
}

.pf-cat {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--p);
  margin-bottom: 7px;
}

.pf-info h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pf-info p {
  font-size: 0.83rem;
  color: var(--muted);
}