/* Portfolio Grid Section */
.portfolio-grid-section {
  padding: 120px 0 80px;
  background: var(--gradient-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Override del contenedor para eliminar padding */
.portfolio-grid-section .container {
  max-width: 98%;
  padding: 0;
  margin: 0 auto;
}

.portfolio-grid-header {
  text-align: center;
  margin-bottom: 60px;
}

.portfolio-grid-header h1 {
  font-size: 3.5rem;
  font-weight: bold;
  color: var(--text-white);
  margin-bottom: 20px;
}

.portfolio-grid-header p {
  font-size: 18px;
  color: var(--text-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* Portfolio Filters */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.filter-btn {
  color: var(--text-white);
  text-decoration: none;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  border-radius: 25px;
  background: linear-gradient(var(--dark-bg), var(--dark-bg)) padding-box,
             var(--gradient-accent) border-box;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-cyan);
  color: var(--primary-purple);
  transform: translateY(-2px);
}

/* Asegurar que el botón activo mantenga el estilo del header */
.filter-btn.active {
  background: linear-gradient(var(--dark-bg), var(--dark-bg)) padding-box,
             var(--gradient-accent) border-box;
  color: var(--text-white);
}

.filter-btn.active:hover {
  background: var(--accent-cyan);
  color: var(--primary-purple);
}

/* Portfolio Grid Layout */
.portfolio-grid {
  display: flex;
  gap: 20px;
  margin-bottom: 60px;
  justify-content: center;
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
  padding: 0;
  width: 100%;
}

/* Columnas del grid */
.portfolio-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
  max-width: 700px;
}

/* Tarjetas en primera columna */
.portfolio-column:nth-child(1) .portfolio-item:nth-child(1) {
  width: 100%;
  height: 400px;
}

.portfolio-column:nth-child(1) .portfolio-item:nth-child(2) {
  width: 100%;
  height: 750px;
}

.portfolio-column:nth-child(1) .portfolio-item:nth-child(3) {
  width: 100%;
  height: 400px;
}

/* Tarjetas en segunda columna */
.portfolio-column:nth-child(2) .portfolio-item:nth-child(1) {
  width: 100%;
  height: 750px;
}

.portfolio-column:nth-child(2) .portfolio-item:nth-child(2) {
  width: 100%;
  height: 400px;
}

.portfolio-column:nth-child(2) .portfolio-item:nth-child(3) {
  width: 100%;
  height: 300px;
}

/* Tarjetas en tercera columna */
.portfolio-column:nth-child(3) .portfolio-item:nth-child(1) {
  width: 100%;
  height: 400px;
}

.portfolio-column:nth-child(3) .portfolio-item:nth-child(2) {
  width: 100%;
  height: 750px;
}

.portfolio-column:nth-child(3) .portfolio-item:nth-child(3) {
  width: 100%;
  height: 400px;
}

.portfolio-item {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
}

.portfolio-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 217, 255, 0.2);
}

.portfolio-image {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(2, 11, 50, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-info {
  text-align: center;
  color: white;
  padding: 20px;
}

.portfolio-info h3 {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--accent-cyan);
}

.portfolio-info p {
  font-size: 14px;
  color: #ffffff;
  margin-bottom: 30px;
}

.view-project-btn {
  color: var(--text-white);
  text-decoration: none;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  border-radius: 25px;
  background: linear-gradient(var(--dark-bg), var(--dark-bg)) padding-box,
             var(--gradient-accent) border-box;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0;
}

.view-project-btn:hover {
  background: var(--accent-cyan);
  color: var(--primary-purple);
  transform: translateY(-2px);
}

/* Portfolio Actions */
.portfolio-actions {
  text-align: center;
}

.back-to-home-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-white);
  padding: 15px 70px;
  font-size: 16px;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  border-radius: 30px;
  background: linear-gradient(var(--dark-bg), var(--dark-bg)) padding-box,
             var(--gradient-accent) border-box;
  text-decoration: none;
  letter-spacing: 1px;
}

.back-to-home-btn:hover {
  background: var(--accent-cyan);
  color: var(--primary-purple);
  transform: translateY(-2px);
}

/* RESPONSIVE DESIGN FOR PORTFOLIO GRID */

/* Pantallas grandes móviles (iPhone 14 Pro Max, etc.) - 430px y menos */
@media (max-width: 430px) {
  .portfolio-grid-section {
    padding: 70px 20px 50px;
    overflow-x: hidden;
  }

  .portfolio-grid-header h1 {
    font-size: 2.2rem;
    margin-top: 30px;
    margin-bottom: 0;
  }

  .portfolio-filters {
    gap: 12px;
    margin-bottom: 35px;
  }

  .filter-btn {
    padding: 9px 18px;
    font-size: 12px;
  }

  .portfolio-grid {
    gap: 18px;
    margin-bottom: 35px;
    padding: 0 10px;
  }

  /* Tarjetas móviles - sobrescribir todas las medidas específicas */
  .portfolio-item,
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(3) {
    width: 100% !important;
    height: 200px !important;
    margin: 0 !important;
  }

  .portfolio-info h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
  }

  .portfolio-info p {
    font-size: 11px;
    margin-bottom: 30px;
  }

  .view-project-btn {
    padding: 8px 16px;
    font-size: 11px;
    margin-top: 0;
  }
}

/* Tablets y móviles - 768px y menos */
@media (max-width: 768px) {
  .portfolio-grid-section {
    padding: 80px 20px 60px;
    overflow-x: hidden;
  }

  .portfolio-grid-header h1 {
    font-size: 2.5rem;
    margin-top: 25px;
    margin-bottom: 0;
  }

  .portfolio-grid-header p {
    font-size: 16px;
  }

  .portfolio-filters {
    gap: 15px;
    margin-bottom: 40px;
  }

  .filter-btn {
    padding: 10px 20px;
    font-size: 13px;
  }

  /* Layout móvil: sin columnas, tarjetas directas */
  .portfolio-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
    padding: 0 15px;
  }

  /* Ocultar las columnas en móvil */
  .portfolio-column {
    display: contents;
  }

  /* Tarjetas móviles - sobrescribir todas las medidas específicas */
  .portfolio-item,
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(3) {
    width: 100% !important;
    height: 180px !important;
    margin: 0 !important;
  }

  .portfolio-image {
    height: 100%;
  }

  .portfolio-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
  }

  .portfolio-info p {
    font-size: 13px;
    margin-bottom: 30px;
  }

  .view-project-btn {
    padding: 10px 20px;
    font-size: 13px;
    margin-top: 0;
  }

  .back-to-home-btn {
    padding: 12px 25px;
    font-size: 14px;
  }
}

/* Móviles pequeños - 480px y menos */
@media (max-width: 480px) {
  .portfolio-grid-section {
    padding: 60px 15px 40px;
    overflow-x: hidden;
  }

  .portfolio-grid-header h1 {
    font-size: 2rem;
    margin-top: 50px;
    margin-bottom: 0;
  }

  .portfolio-grid-header p {
    font-size: 15px;
  }

  .portfolio-filters {
    gap: 10px;
    margin-bottom: 30px;
  }

  .filter-btn {
    padding: 8px 16px;
    font-size: 12px;
  }

  .portfolio-grid {
    gap: 15px;
    margin-bottom: 30px;
    padding: 0 10px;
  }

  /* Tarjetas móviles pequeñas - sobrescribir todas las medidas específicas */
  .portfolio-item,
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(1) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(2) .portfolio-item:nth-child(3),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(1),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(2),
  .portfolio-column:nth-child(3) .portfolio-item:nth-child(3) {
    width: 100% !important;
    height: 160px !important;
    margin: 0 !important;
  }

  .portfolio-info h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
  }

  .portfolio-info p {
    font-size: 12px;
    margin-bottom: 30px;
  }

  .view-project-btn {
    padding: 8px 16px;
    font-size: 12px;
    margin-top: 0;
  }

  .back-to-home-btn {
    padding: 10px 20px;
    font-size: 13px;
  }
}