.header {
  height: 40px;
  background-color: white;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.page-title {
  font-size: 16px;
  font-weight: 600;
  color: #333;
}

.user-section {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #4a90e2;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  font-weight: bold;
}

.login-btn {
  background: none;
  border: 1px solid #ddd;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  color: #666;
  transition: all 0.2s;
}

.login-btn:hover {
  background-color: #f8f9fa;
  border-color: #999;
}

/* Footer */
.footer {
  background-color: white;
  border-top: 1px solid #e0e0e0;
  padding: 20px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 15px;
}

.footer-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto 30px;
}

.footer-logos img {
  max-height: 50px;
  width: auto;
  object-fit: contain;
}

.footer-text {
  color: #666;
  font-size: 14px;
  text-align: center;
}

.dropdown {
  height: 50%;
  width: 100%;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border: 1px solid #ddd;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  padding: 8px 0;
  min-width: 250px;
  display: none;
  z-index: 1050;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-item {
  padding: 8px 16px;
  cursor: pointer;
  font-size: 13px;
  color: #666;
  transition: background-color 0.2s;
  text-wrap: auto;
}

.dropdown-item:hover {
  background-color: #f8f9fa;
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 200px);
  background: radial-gradient(ellipse at top, #f8f9fa 0%, #ffffff 40%, #f5f7fa 100%);
  padding: 40px 0;
  position: relative;
}

.main-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
      90deg,
      transparent 0%,
      rgba(74, 144, 226, 0.03) 33%,
      transparent 33.5%
    ),
    linear-gradient(90deg, transparent 66%, rgba(231, 76, 60, 0.03) 66.5%, transparent 100%);
  pointer-events: none;
}

.main-columns {
  margin: 0;
  position: relative;
  z-index: 1;
}

.main-column {
  padding: 30px 25px;
  position: relative;
  transition: transform 0.3s ease;
  min-height: 820px;
}

.main-column::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 15px;
  right: 15px;
  bottom: 15px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(10px);
  z-index: -1;
  transition: all 0.3s ease;
}

.main-column:hover::before {
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.main-column:first-child::before {
  border-top: 4px solid #4a90e2;
}

.main-column:nth-child(2)::before {
  border-top: 4px solid #28a745;
}

.main-column:last-child::before {
  border-top: 4px solid #ff8c00;
}

.main-column:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -15px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border: 2px solid #dee2e6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #6c757d;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: translateY(-50%) scale(1);
  }
  50% {
    transform: translateY(-50%) scale(1.1);
  }
}

/* Column Headers */
.column-header {
  text-align: center;
  margin-bottom: 10px;
  padding: 15px 20px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 250, 0.9));
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}

.column-title {
  font-size: 20px;
  font-weight: 700;
  color: #2c3e50;
  margin-top: 8px;
  margin-bottom: 8px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.column-subtitle {
  font-size: 14px;
  color: #6c757d;
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* Dataset Selector */
.dataset-selector {
  text-align: center;
  margin-bottom: 25px;
}

.dataset-selector .form-label {
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 12px;
  display: block;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dataset-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 15px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 250, 0.9));
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
}

.nav-arrow {
  width: 30px;
  height: 30px;
  border: 2px solid #4a90e2;
  background: rgba(74, 144, 226, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #4a90e2;
}

.nav-arrow:hover {
  background: #4a90e2;
  color: white;
  transform: scale(1.1);
}

.nav-arrow:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.dataset-display {
  font-size: 14px;
  font-weight: 700;
  color: #2c3e50;
  min-width: 80px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* 3x3 Image Grid */
.image-grid-3x3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 12px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(74, 144, 226, 0.05), rgba(74, 144, 226, 0.02));
  border-radius: 16px;
  border: 1px solid rgba(74, 144, 226, 0.1);
  aspect-ratio: 1;
}

.grid-image-item {
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 3px solid transparent;
  position: relative;
}

.grid-image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.grid-image-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.grid-image-item:hover::before {
  opacity: 1;
}

.grid-image-item:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 32px rgba(74, 144, 226, 0.25);
  border-color: rgba(74, 144, 226, 0.3);
}

.grid-image-item.selected {
  border-color: #4a90e2;
  box-shadow: 0 8px 32px rgba(74, 144, 226, 0.4);
  transform: translateY(-4px) scale(1.05);
}

.grid-image-item.selected::after {
  content: "✓";
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  background: #4a90e2;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  z-index: 2;
}

/* Pipeline Visualization */
.pipeline-container {
  height: 100%;
  padding: 20px;
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.05), rgba(40, 167, 69, 0.02));
  border-radius: 16px;
  border: 1px solid rgba(40, 167, 69, 0.1);
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
}

.pipeline-stage,
.input-stage,
.processing-stage,
.intermediate-stage,
.model-stage {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  padding: 20px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.input-stage {
  border-left: 4px solid #4a90e2;
}

.processing-stage,
.input-processing-stage {
  border-left: 4px solid #28a745;
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.08), rgba(40, 167, 69, 0.03));
}

.intermediate-stage {
  border-left: 4px solid #f39c12;
  background: linear-gradient(135deg, rgba(243, 156, 18, 0.08), rgba(243, 156, 18, 0.03));
}

.model-stage {
  border-left: 4px solid #28a745;
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.08), rgba(40, 167, 69, 0.03));
}

.stage-header {
  text-align: center;
  margin-bottom: 15px;
}

.stage-title {
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stage-subtitle {
  font-size: 12px;
  color: #6c757d;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.stage-tag {
  background: linear-gradient(135deg, #28a745, #20c997);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.stage-content {
  display: flex;
  justify-content: center;
  align-items: center;
}

.pipeline-image-container {
  position: relative;
}

.pipeline-image {
  width: 100px;
  height: 100px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  border: 2px solid rgba(255, 255, 255, 0.8);
  position: relative;
}

.pipeline-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pipeline-image:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

.processed-image .noise-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    radial-gradient(circle at 40% 80%, rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    radial-gradient(circle at 90% 20%, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 20px 20px, 25px 25px, 30px 30px, 15px 15px;
  animation: noise-animation 2s linear infinite;
  pointer-events: none;
}

@keyframes noise-animation {
  0% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    opacity: 0.3;
  }
}

.pipeline-arrow-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 25px 0;
}

/* Compact Pipeline Visualization */
.input-processing-stage {
  border-left: 4px solid #28a745;
  background: linear-gradient(135deg, rgba(40, 167, 69, 0.08), rgba(40, 167, 69, 0.03));
  padding: 25px 20px;
}

.pipeline-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: nowrap;
}

.input-section,
.output-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.processing-section {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  justify-content: center;
}

.pipeline-flow .pipeline-image {
  width: 80px;
  height: 80px;
}

.input-label,
.output-label {
  font-size: 11px;
  font-weight: 600;
  color: #2c3e50;
  text-align: center;
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  max-width: 100px;
}

.processing-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 10px;
  background: rgba(40, 167, 69, 0.1);
  border-radius: 8px;
  border: 2px dashed rgba(40, 167, 69, 0.3);
}

.processing-text {
  font-size: 10px;
  font-weight: 600;
  color: #28a745;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.model-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 15px;
  background: rgba(40, 167, 69, 0.1);
  border-radius: 12px;
  border: 2px solid rgba(40, 167, 69, 0.2);
}

.model-text {
  font-size: 11px;
  font-weight: 600;
  color: #28a745;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Results Container */
.results-container {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(255, 140, 0, 0.05), rgba(255, 140, 0, 0.02));
  border-radius: 16px;
  border: 1px solid rgba(255, 140, 0, 0.1);
}

/* Metric Cards */
.metric-card {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 15px;
  border-left: 4px solid #ff8c00;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.metric-card.clean {
  border-left: 4px solid #b6bcc4;
}

.metric-header {
  margin-bottom: 10px;
}

.metric-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.metric-title.clean {
  color: #696d73;
}

.metric-title.unlearnable {
  color: #d07404;
}

.metric-subtitle {
  font-size: 11px;
  color: #6c757d;
  font-weight: 500;
}

.metric-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-value {
  font-size: 24px;
  font-weight: 700;
  color: #ff8c00;
}

.metric-value.clean {
  color: #b6bcc4;
}

.metric-trend {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 12px;
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
}

/* Chart Section */
.chart-section {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 15px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  min-height: 350px;
  transition: all 0.5s ease;
  overflow: hidden;
}

.chart-section.collapsed {
  min-height: 80px;
  max-height: 80px;
}

.chart-section.collapsed .chart-container {
  opacity: 0;
  height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.chart-section.collapsed .result-title {
  color: #999 !important;
  transition: color 0.3s ease;
}

.chart-section.collapsed .result-subtitle {
  color: #bbb !important;
  transition: color 0.3s ease;
}

.chart-section:not(.collapsed) .chart-container {
  opacity: 1;
  height: auto;
  flex: 1;
  transition: all 0.5s ease 0.2s;
}

.chart-header {
  margin-bottom: 10px;
}

.chart-title {
  font-size: 14px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 2px;
}

.chart-subtitle {
  font-size: 11px;
  color: #6c757d;
  font-weight: 500;
}

.chart-placeholder {
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 0.8rem;
  color: rgb(149, 149, 149);
}

.chart-placeholder canvas {
  max-width: 100%;
}

/* Comparison Matrix */
.comparison-matrix {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 15px;
  border-left: 4px solid #ff8c00;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.matrix-header {
  margin-bottom: 15px;
  text-align: center;
}

.matrix-title {
  font-size: 14px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 2px;
}

.matrix-subtitle {
  font-size: 11px;
  color: #6c757d;
  font-weight: 500;
}

.matrix-row {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  gap: 10px;
}

.matrix-label {
  font-size: 12px;
  font-weight: 600;
  color: #2c3e50;
  min-width: 50px;
  text-align: right;
}

.matrix-bar {
  flex: 1;
  height: 20px;
  background: rgba(255, 140, 0, 0.1);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(135deg, #ff8c00, #e07600);
  border-radius: 10px;
  transition: width 0.8s ease;
}

.bar-value {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  font-weight: 600;
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Introduction Section */
.introduction-section {
  margin-bottom: 40px;
  padding: 15px 40px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(248, 249, 250, 0.9));
  border-radius: 20px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  position: relative;
  z-index: 2;
  gap: 20px;
}

.intro-left-area {
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro-left-area h5 {
  color: #4a90e2;
  font-weight: 700;
  font-size: 1.4rem;
  margin-bottom: 16px;
  text-shadow: 0 2px 4px rgba(74, 144, 226, 0.1);
  position: relative;
  padding-bottom: 10px;
}

.intro-left-area h5::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #4a90e2, rgba(74, 144, 226, 0.5));
  border-radius: 2px;
}

.intro-left-area ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.intro-left-area li {
  position: relative;
  padding: 8px 0 8px 35px;
  font-size: 1rem;
  font-weight: 500;
  color: #2c3e50;
  line-height: 1.6;
  transition: all 0.3s ease;
}

.intro-left-area li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #4a90e2, #5ba0f2);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.intro-right-area {
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.intro-right-area h5 {
  color: #4a90e2;
  font-weight: 700;
  font-size: 1.4rem;
  margin-bottom: 16px;
  text-shadow: 0 2px 4px rgba(74, 144, 226, 0.1);
  position: relative;
  padding-bottom: 10px;
}

.intro-right-area h5::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, #4a90e2, rgba(74, 144, 226, 0.5));
  border-radius: 2px;
}

.intro-right-area ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.intro-right-area li {
  position: relative;
  padding: 8px 0 8px 35px;
  font-size: 1rem;
  font-weight: 500;
  color: #2c3e50;
  line-height: 1.6;
  transition: all 0.3s ease;
}

.intro-right-area li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #4a90e2, #5ba0f2);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.standout {
  font-size: 1.1rem;
  color: #d60000;
  font-weight: bold;
}

/* Attack Controls Layout */
.attack-controls {
  gap: 15px;
}

.control-label {
  font-size: 13px;
  font-weight: 600;
  color: #2c3e50;
  white-space: nowrap;
}

.compact-dropdown-btn {
  padding: 6px 12px;
  border: 2px solid #28a745 !important;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.9) !important;
  font-size: 12px;
  color: #28a745 !important;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  min-width: 80px;
  height: 100%;
}

.compact-dropdown-btn:hover,
.compact-dropdown-btn:focus {
  background: rgba(40, 167, 69, 0.1) !important;
  border-color: #28a745 !important;
  color: #28a745 !important;
  box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.1) !important;
  transform: translateY(-1px);
}

.compact-dropdown-btn:active,
.compact-dropdown-btn.show {
  background: rgba(40, 167, 69, 0.15) !important;
  border-color: #28a745 !important;
  color: #28a745 !important;
  transform: translateY(0);
}

.compact-attack-btn {
  width: 220px;
  padding: 6px 16px;
  border: 2px solid #28a745;
  border-radius: 6px;
  background: #28a745;
  font-size: 12px;
  color: white;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  height: 50%;
}

.compact-attack-btn:hover,
.compact-attack-btn:focus {
  background: #218838;
  border-color: #218838;
  color: white;
  box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.25);
  transform: translateY(-1px);
}

.compact-attack-btn:active {
  background: #1e7e34;
  border-color: #1e7e34;
  color: white;
  transform: translateY(0);
}

.compact-attack-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* QR Code and Logos Row */
.qr-logos-row {
  display: flex;
  justify-content: end;
  gap: 30px;
}

.qr-logos-row:hover .qr-code-container.link {
  transform: scale(1.3);
}

.qr-code-container.link:hover {
  border-color: #ffffff;
  box-shadow: 0 4px 16px rgba(74, 144, 226, 0.2);
  background: rgba(255, 255, 255, 0.95);
}

.qr-logos-row:hover .qr-code-container.link::before {
  opacity: 1;
}

.qr-logos-row:hover .qr-code-container.link img {
  filter: brightness(1.1) contrast(1.05);
}

.qr-code-section:hover .qr-code-label {
  color: #ffffff;
  font-weight: 600;
}

/* QR Code Section */
.qr-code-section {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.qr-code-container {
  width: 60px;
  height: 60px;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.qr-code-container.logo {
  width: 60px;
  height: 60px;
}

.qr-code-container.link {
  cursor: pointer;
}

.qr-code-container.link:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.qr-code-container.link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.qr-code-container img {
  max-height: 100%;
  max-width: 100%;
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}

.qr-code-label {
  font-size: 12px;
  color: #d8dada;
  text-align: center;
  font-weight: 500;
  max-width: 60px;
  line-height: 1.3;
  transition: color 0.3s ease;
}

.intro-title {
  background-color: #4a6cb8;
  color: white;
  padding: 20px 30px;
  border-radius: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 2rem;
  margin-bottom: 30px;
  box-shadow: 0 4px 15px rgba(59, 89, 152, 0.3);
  position: relative;
  overflow: hidden;
}

.intro-title::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s;
}

/* Responsive adjustments for introduction */
@media (max-width: 768px) {
  .introduction-section {
    padding: 20px;
    margin-bottom: 30px;
  }

  .intro-title {
    font-size: 24px;
  }

  .intro-description,
  .intro-highlight {
    font-size: 14px;
    text-align: left;
  }

  .intro-image {
    border-radius: 12px;
  }

  .image-caption {
    font-size: 14px;
    padding: 12px 20px;
    margin-bottom: 15px;
    letter-spacing: 0.2px;
  }

  .intro-additional-content {
    margin-top: 20px;
    padding-top: 20px;
  }

  .external-links-section .section-title {
    font-size: 14px;
  }

  .links-container {
    justify-content: center;
  }

  .qr-code-container {
    width: 60px;
    height: 60px;
  }

  .qr-code-label {
    max-width: 60px;
    font-size: 11px;
  }

  .pipeline-flow {
    flex-direction: column;
    gap: 10px;
  }

  .processing-section {
    flex-direction: column;
  }

  .horizontal-arrow {
    transform: rotate(90deg);
  }

  .pipeline-image {
    width: 60px;
    height: 60px;
  }
}

/* Pipeline Dropdowns */
.pipeline-dropdowns {
  padding: 20px;
}

.dropdown-step {
  display: flex;
}

.step-label {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.pipeline-dropdown-btn {
  width: 100%;
  padding: 8px 12px;
  border: 2px solid #28a745 !important;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9) !important;
  font-size: 12px;
  color: #28a745 !important;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.pipeline-dropdown-btn:hover,
.pipeline-dropdown-btn:focus {
  background: rgba(40, 167, 69, 0.1) !important;
  border-color: #28a745 !important;
  color: #28a745 !important;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1) !important;
  transform: translateY(-1px);
}

.pipeline-dropdown-btn:active,
.pipeline-dropdown-btn.show {
  background: rgba(40, 167, 69, 0.15) !important;
  border-color: #28a745 !important;
  color: #28a745 !important;
  transform: translateY(0);
}

.attack-button-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.attack-btn {
  width: 100%;
  max-width: 200px;
  padding: 10px 15px;
  border: 2px solid #28a745;
  border-radius: 8px;
  background: #28a745;
  font-size: 13px;
  color: white;
  font-weight: 600;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.attack-btn:hover,
.attack-btn:focus {
  background: #218838;
  border-color: #218838;
  color: white;
  box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.25);
  transform: translateY(-1px);
}

.attack-btn:active {
  background: #1e7e34;
  border-color: #1e7e34;
  color: white;
  transform: translateY(0);
}

.attack-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Chart Loading Animation Styles */
.chart-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 15px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 10;
}

.chart-loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.chart-loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255, 140, 0, 0.2);
  border-top: 4px solid #ff8c00;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.chart-loading-text {
  font-size: 14px;
  font-weight: 600;
  color: #ff8c00;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.chart-container {
  flex: 1;
  position: relative;
}

/* Spin Animation */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.pipeline-image {
  width: 60px;
  height: 60px;
}

/* Split Container for Middle Column */
.split-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
  flex: 1;
}

.split-area {
  flex: 1;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 20px;
  border-left: 4px solid #28a745;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.split-header {
  z-index: 10;
  font-size: 16px;
  font-weight: 700;
  color: #28a745;
  letter-spacing: 1px;
}

/* Image Processing Visualization */
.image-processing-container {
  background: rgba(40, 167, 69, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(40, 167, 69, 0.1);
}

.processing-images {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 50%;
}

.processing-image-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.processing-image-item img {
  width: 60px;
  height: 60px;
  border-radius: 8px;
  border: 2px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  object-fit: cover;
}

.processing-image-item.backdoor {
  position: relative;
}

.processing-image-item.backdoor img {
  width: 80px;
  height: 80px;
}

.backdoor-trigger {
  position: absolute !important;
  bottom: -10px !important;
  right: -10px !important;
  width: 35px !important;
  height: 35px !important;
  box-shadow: 0 2px 8px rgba(255, 107, 107, 0.4) !important;
  background: white !important;
  z-index: 5 !important;
}

.image-label {
  font-size: 11px;
  font-weight: 600;
  color: #2c3e50;
  text-align: center;
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.plus-symbol {
  font-size: 20px;
  font-weight: bold;
  color: #28a745;
  background: rgba(255, 255, 255, 0.9);
  border: 2px solid #28a745;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Result Image Section */
.result-image-section {
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
}

.result-header {
  margin-bottom: 15px;
}

.result-title {
  font-size: 16px;
  font-weight: 700;
  color: #ff8c00;
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-subtitle {
  font-size: 12px;
  color: #6c757d;
  font-weight: 500;
}

.result-image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, rgba(255, 140, 0, 0.05), rgba(255, 140, 0, 0.02));
  border-radius: 12px;
  padding: 20px;
  border: 1px solid rgba(255, 140, 0, 0.1);
}

.result-image {
  width: 80px;
  height: 80px;
  border-radius: 12px;
  border: 3px solid rgba(255, 140, 0, 0.3);
  box-shadow: 0 4px 16px rgba(255, 140, 0, 0.2);
  object-fit: cover;
  transition: all 0.3s ease;
}

.result-image:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 24px rgba(255, 140, 0, 0.3);
}

.result-overlay {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 140, 0, 0.9);
  color: white;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(255, 140, 0, 0.3);
}

/* Loading Animation Styles */
.result-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 10;
}

.result-loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255, 140, 0, 0.2);
  border-top: 3px solid #ff8c00;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  font-size: 12px;
  font-weight: 600;
  color: #ff8c00;
  text-transform: uppercase;
  letter-spacing: 1px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.attach-method-label {
  font-size: 14px;
}

.defense-process-image-container {
  height: 12rem;
}

.defense-process-image-container img {
  max-width: 100%;
}

/* Tab Interface Styles */
.tab-container {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tab-headers {
  display: flex;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px 12px 0 0;
  border: 1px solid rgba(40, 167, 69, 0.1);
  backdrop-filter: blur(10px);
}

.tab-header {
  flex: 1;
  padding: 10px 12px;
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 600;
  color: #6c757d;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 12px 12px 0 0;
}

.tab-header:first-child {
  border-radius: 12px 0 0 0;
}

.tab-header:last-child {
  border-radius: 0 12px 0 0;
}

.tab-header.active {
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
  border-bottom: 2px solid #28a745;
}

.tab-header:hover:not(.active) {
  background: rgba(40, 167, 69, 0.05);
  color: #28a745;
}

.tab-content {
  flex: 1;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 0 0 12px 12px;
  border: 1px solid rgba(40, 167, 69, 0.1);
  border-top: none;
  padding: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.tab-pane {
  display: none;
  height: 100%;
}

.tab-pane.active {
  display: block;
}

.placeholder-content {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(40, 167, 69, 0.05);
  border-radius: 12px;
  border: 1px solid rgba(40, 167, 69, 0.1);
}

/* Defense Images Flow Styles */
.defense-images-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.defense-image-item {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  transition: all 0.3s ease;
  z-index: 100;
}

.defense-image-item img {
  max-width: 100%;
  border-radius: 12px;
  border: 2px solid rgba(40, 167, 69, 0.3);
  box-shadow: 0 4px 16px rgba(40, 167, 69, 0.2);
  object-fit: cover;
  transition: all 0.3s ease;
  background: white;
}

.defense-image-item:hover {
  transform: scale(1.2);
  box-shadow: 0 12px 48px rgba(40, 167, 69, 0.25);
  border-color: rgba(40, 167, 69, 0.3);
}

.defense-image-label {
  font-size: 12px;
  font-weight: 600;
  color: #28a745;
  text-align: center;
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(40, 167, 69, 0.2);
  min-width: 60px;
}

.defense-arrow-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  max-width: 100px;
}

.defense-arrow {
  display: flex;
  justify-content: center;
  align-items: center;
}

.defense-arrow-text {
  font-size: 12px;
  padding: 0 12px;
  text-align: center;
  transition: all 0.3s ease;
}

@media (min-width: 1600px) {
  .processing-images {
    gap: 15px;
  }
  .dropdown {
    min-width: 220px;
  }

  .compact-attack-btn {
    min-width: 220px;
  }
}

/* Single Large Image Container */
.single-image-container {
  padding: 20px;
  background: linear-gradient(135deg, rgba(74, 144, 226, 0.05), rgba(74, 144, 226, 0.02));
  border-radius: 16px;
  border: 1px solid rgba(74, 144, 226, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

.single-image-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.single-image-item:hover {
  transform: scale(1.02);
}

.single-image-item img {
  width: 280px;
  height: 280px;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  object-fit: cover;
  border: 3px solid rgba(74, 144, 226, 0.5);
  transition: all 0.3s ease;
}

.single-image-item:hover img {
  box-shadow: 0 12px 48px rgba(74, 144, 226, 0.25);
  border-color: #4a90e2;
}

.single-image-label {
  font-size: 16px;
  font-weight: 700;
  color: #2c3e50;
  text-align: center;
  background: rgba(255, 255, 255, 0.9);
  padding: 12px 24px;
  border-radius: 12px;
  border: 1px solid rgba(74, 144, 226, 0.2);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* Update for 3 tabs */
.tab-headers {
  display: flex;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 12px 12px 0 0;
  border: 1px solid rgba(40, 167, 69, 0.1);
  backdrop-filter: blur(10px);
}

.tab-header {
  flex: 1;
  padding: 10px 12px;
  background: transparent;
  border: none;
  font-size: 12px;
  font-weight: 600;
  color: #6c757d;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 12px 12px 0 0;
}

.tab-header:first-child {
  border-radius: 12px 0 0 0;
}

.tab-header:last-child {
  border-radius: 0 12px 0 0;
}

.tab-header.active {
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
  border-bottom: 2px solid #28a745;
}

.tab-header:hover:not(.active) {
  background: rgba(40, 167, 69, 0.05);
  color: #28a745;
}