.tabs-vertical {
  display: flex;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
  min-height: 300px;
}

.tabs-nav-vertical {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
  border-right: 2px solid #dee2e6;
  min-width: var(--min-tab-width, 200px);
  flex-shrink: 0;
}

.tab-nav-item-vertical {
  border-bottom: 1px solid #dee2e6;
}

.tab-nav-item-vertical:last-child {
  border-bottom: none;
}

.tab-button-vertical {
  width: 100%;
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  color: #495057;
  transition: all 0.2s ease;
  text-align: left;
  position: relative;
}

.tab-button-vertical:hover {
  background-color: #e9ecef;
  color: #212529;
}

.tab-button-vertical:focus {
  outline: 2px solid #0066cc;
  outline-offset: -2px;
  z-index: 1;
}

.tab-nav-item-vertical.active .tab-button-vertical {
  background-color: #fff;
  color: #0066cc;
  border-right: 3px solid #0066cc;
  margin-right: -2px;
}

.tabs-content-vertical {
  flex: 1;
  position: relative;
}

.tab-panel-vertical {
  padding: 1.5rem;
  display: none;
  height: 100%;
}

.tab-panel-vertical.active {
  display: block;
}

.tabs-vertical[data-tabs-position="right"] {
  flex-direction: row-reverse;
}

.tabs-vertical[data-tabs-position="right"] .tabs-nav-vertical {
  border-right: none;
  border-left: 2px solid #dee2e6;
}

.tabs-vertical[data-tabs-position="right"] .tab-nav-item-vertical.active .tab-button-vertical {
  border-right: none;
  border-left: 3px solid #0066cc;
  margin-right: 0;
  margin-left: -2px;
}

@media (max-width: 768px) {
  .tabs-vertical {
    flex-direction: column;
    min-height: auto;
  }
  
  .tabs-nav-vertical {
    flex-direction: row;
    border-right: none;
    border-bottom: 2px solid #dee2e6;
    min-width: 100%;
    overflow-x: auto;
  }
  
  .tab-nav-item-vertical {
    border-bottom: none;
    border-right: 1px solid #dee2e6;
    flex-shrink: 0;
  }
  
  .tab-nav-item-vertical:last-child {
    border-right: none;
  }
  
  .tab-button-vertical {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    white-space: nowrap;
  }
  
  .tab-nav-item-vertical.active .tab-button-vertical {
    border-right: none;
    border-bottom: 3px solid #0066cc;
    margin-right: 0;
    margin-bottom: -2px;
  }
  
  .tabs-vertical[data-tabs-position="right"] {
    flex-direction: column;
  }
  
  .tabs-vertical[data-tabs-position="right"] .tabs-nav-vertical {
    border-left: none;
    border-bottom: 2px solid #dee2e6;
  }
  
  .tabs-vertical[data-tabs-position="right"] .tab-nav-item-vertical.active .tab-button-vertical {
    border-left: none;
    border-bottom: 3px solid #0066cc;
    margin-left: 0;
    margin-bottom: -2px;
  }
  
  .tab-panel-vertical {
    padding: 1rem;
  }
}

@media print {
  .tabs-vertical {
    flex-direction: column;
  }
  
  .tabs-nav-vertical {
    display: none;
  }
  
  .tab-panel-vertical {
    display: block !important;
    page-break-inside: avoid;
    border-top: 1px solid #ddd;
    margin-top: 1rem;
  }
  
  .tab-panel-vertical::before {
    content: attr(data-tab-title);
    display: block;
    font-weight: bold;
    margin-bottom: 0.5rem;
  }
}

.tab-panel-vertical.active {
  animation: fadeInVertical 0.3s ease;
}

@keyframes fadeInVertical {
  from {
    opacity: 0;
    transform: translateX(10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.tab-panel-vertical[aria-hidden="true"] {
  display: none;
}