/* ==================== PORTAFOLIO ==================== */

.portfolio-intro {
  max-width: 700px;
  margin: 0 auto 3rem;
  text-align: center;
}

/* Filtros con glassmorphism */
.portfolio-filters {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 2rem 0 2.5rem;
  padding: 0.55rem 0.8rem;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(12px);
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.65);
}
:root.dark .portfolio-filters {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.08);
}

.filter-btn {
  padding: 0.45rem 1.1rem;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* Card base */
.portfolio-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s;
  position: relative;
  cursor: pointer;
}
.portfolio-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
:root.dark .portfolio-card {
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(10px);
  border-color: rgba(255,255,255,0.07);
}
:root.dark .portfolio-card:hover {
  border-color: rgba(211,47,47,0.4);
  background: rgba(211,47,47,0.04);
}

/* Cards destacadas */
.portfolio-card--featured {
  border-color: rgba(211,47,47,0.4);
  animation: float 5s ease-in-out infinite;
}
.portfolio-card--featured:hover {
  border-color: var(--primary);
  animation: none;
}

/* ---- Visual (gradiente + emoji) ---- */
.portfolio-card__visual {
  position: relative;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
/* Gradientes por categoria */
.portfolio-card__visual[data-cat="saas"] { background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 50%, #3730a3 100%); }
.portfolio-card__visual[data-cat="rpa"]  { background: linear-gradient(135deg, #7c2d12 0%, #c2410c 50%, #ea580c 100%); }
.portfolio-card__visual[data-cat="web"]  { background: linear-gradient(135deg, #052e16 0%, #065f46 50%, #047857 100%); }
.portfolio-card__visual[data-cat="iot"]  { background: linear-gradient(135deg, #2e1065 0%, #5b21b6 50%, #6d28d9 100%); }

/* Circulos decorativos en el visual */
.portfolio-card__visual::before {
  content: '';
  position: absolute;
  width: 180px; height: 180px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  top: -50px; right: -40px;
}
.portfolio-card__visual::after {
  content: '';
  position: absolute;
  width: 100px; height: 100px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  bottom: -30px; left: -20px;
}

/* Emoji icon */
.portfolio-card__visual-icon {
  font-size: 3.2rem;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.portfolio-card:hover .portfolio-card__visual-icon {
  transform: scale(1.2) translateY(-4px);
}

/* Overlay al hover */
.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 2;
}
.portfolio-card:hover .portfolio-card__overlay { opacity: 1; }
.portfolio-card__overlay-text {
  color: white;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Badge de estado */
.portfolio-card__badge {
  position: absolute;
  top: 0.75rem; right: 0.75rem;
  padding: 0.22rem 0.7rem;
  border-radius: 50px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
  z-index: 3;
}
.portfolio-card__badge--success   { background: rgba(16,185,129,0.18); color: #10b981; border: 1px solid rgba(16,185,129,0.35); }
.portfolio-card__badge--info      { background: rgba(59,130,246,0.18);  color: #60a5fa; border: 1px solid rgba(59,130,246,0.35); }
.portfolio-card__badge--highlight { background: rgba(211,47,47,0.18);   color: #f87171; border: 1px solid rgba(211,47,47,0.35); }

/* Watermark Rontgen */
.portfolio-card__watermark {
  position: absolute;
  bottom: 0.65rem; left: 0.65rem;
  width: 26px; height: 26px;
  object-fit: contain;
  opacity: 0.9;
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.6));
  z-index: 3;
}

/* Contenido textual */
.portfolio-card__content { padding: 1.25rem 1.5rem 1.5rem; }
.portfolio-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 0.4rem;
}
.portfolio-card__content h3  { font-size: 1.05rem; margin-bottom: 0.15rem; }
.portfolio-card__subtitle    { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 0.75rem; }
.portfolio-card__content p   { font-size: 0.875rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1rem; }
.portfolio-card__features    { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.portfolio-card__feature {
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ==================== SECCION CTA ==================== */

.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 3rem 1.5rem;
  text-align: center;
  color: white;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='20' cy='20' r='2'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.cta-section h3 { color: white; margin-bottom: 0.5rem; }
.cta-section p  { color: rgba(255,255,255,0.8); margin-bottom: 1.5rem; }
.cta-section .btn { background: white; color: var(--primary) !important; }
.cta-section .btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }