/* Modern Neural Network Training Studio - Full Page Design */

.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
}

/* Header */
.app-header {
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-content {
  max-width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.header-title h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-subtitle {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin: 0.25rem 0 0 0;
}

.header-nav {
  display: flex;
  gap: var(--spacing-sm);
}

/* Main Layout */
.app-main {
  flex: 1;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
  overflow: hidden;
}

/* Sidebar */
.config-sidebar {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  overflow-y: auto;
  max-height: calc(100vh - 120px);
  position: sticky;
  top: 100px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.sidebar-section {
  margin-bottom: var(--spacing-xl);
}

.sidebar-section:last-of-type {
  margin-bottom: var(--spacing-lg);
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 0.75rem;
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
  width: 100%;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.75rem;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: var(--font-sans);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.value-display {
  color: var(--color-primary);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.btn-small {
  width: 100%;
  margin-top: var(--spacing-xs);
  padding: 0.5rem;
  font-size: 0.875rem;
}

.btn-upload {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border: none;
  color: white;
  cursor: pointer;
}

.btn-upload:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.file-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
}

.file-name {
  color: var(--color-text);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-clear {
  background: transparent;
  border: none;
  color: var(--color-text-light);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  padding: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.btn-clear:hover {
  background: var(--color-danger);
  color: white;
}

.data-stats {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.stat-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
  font-size: 0.875rem;
}

.stat-label {
  color: var(--color-text-light);
}

.stat-value {
  color: var(--color-primary);
  font-weight: 600;
  font-family: var(--font-mono);
}

.sidebar-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border: none;
  color: white;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(74, 158, 255, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 0.875rem;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: rgba(74, 158, 255, 0.05);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-icon {
  font-size: 1.25rem;
}

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  overflow-y: auto;
  max-height: calc(100vh - 120px);
}

/* Status Bar */
.status-bar {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.status-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 0;
  flex: 1;
}

.status-metrics {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-shrink: 0;
}

.status-metric {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.1;
  min-width: 72px;
}

.status-metric-label {
  font-size: 0.65rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-metric-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.status-indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse 2s infinite;
}

.status-indicator.training {
  background: var(--color-warning);
  animation: pulse 1s infinite;
}

.status-indicator.success {
  background: var(--color-success);
  animation: none;
}

.status-indicator.error {
  background: var(--color-danger);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-text {
  color: var(--color-text);
  font-size: 0.9375rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 900px) {
  .status-metrics {
    gap: var(--spacing-sm);
  }
  .status-metric {
    min-width: 60px;
  }
}

@media (max-width: 640px) {
  .status-bar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }
  .status-left {
    flex: none;
  }
  .status-text {
    white-space: normal;
  }
  .status-metrics {
    justify-content: space-between;
  }
  .status-metric {
    align-items: flex-start;
    min-width: 0;
  }
}

/* Visualization Grid */
.visualization-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.viz-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: var(--transition);
}

.viz-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.viz-card-full {
  grid-column: 1 / -1;
}

.viz-header {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-tertiary);
}

.viz-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.viz-content {
  padding: var(--spacing-md);
  position: relative;
  height: 400px;
}

.viz-card-full .viz-content {
  height: 500px;
}

.viz-content canvas {
  max-height: 100%;
  min-width: 100%;
}

/* Model Architecture */
.model-architecture {
  margin-top: var(--spacing-lg);
}

.architecture-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  flex-wrap: wrap;
}

.layer-box {
  background: var(--color-bg-tertiary);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: center;
  min-width: 120px;
  position: relative;
}

.layer-box::after {
  content: '→';
  position: absolute;
  right: -24px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: bold;
}

.layer-box:last-child::after {
  display: none;
}

.layer-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  margin-bottom: var(--spacing-xs);
}

.layer-info {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .app-main {
    grid-template-columns: 320px 1fr;
  }
}

@media (max-width: 968px) {
  .app-main {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .config-sidebar {
    position: relative;
    top: 0;
    max-height: none;
  }

  .visualization-grid {
    grid-template-columns: 1fr;
  }

  .metrics-dashboard {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .app-main {
    padding: var(--spacing-md);
  }

  .header-content {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .metrics-dashboard {
    grid-template-columns: 1fr;
  }

  .viz-content {
    height: 300px;
  }

  .viz-card-full .viz-content {
    height: 350px;
  }
}

/* Multiple Input Fields */
.input-field-row {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
  align-items: center;
}

.input-field-select {
  flex: 1;
}

.btn-remove-input {
  background: var(--color-danger);
  border: none;
  color: white;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.btn-remove-input:hover {
  background: #dc2626;
  transform: scale(1.1);
}

.btn-viz-input {
  background: rgba(74, 158, 255, 0.15);
  border: 1px solid rgba(74, 158, 255, 0.35);
  color: var(--color-text);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.btn-viz-input:hover {
  background: rgba(74, 158, 255, 0.25);
  border-color: rgba(74, 158, 255, 0.6);
  transform: scale(1.05);
}

.btn-viz-input.active {
  background: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.6);
}

.btn-add {
  background: transparent;
  border: 1px dashed var(--color-primary);
  color: var(--color-primary);
  margin-top: var(--spacing-xs);
}

.btn-add:hover {
  background: rgba(74, 158, 255, 0.1);
  border-style: solid;
}

.field-hint {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-lg);
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--color-text);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--color-text-light);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--color-danger);
  color: white;
}

.modal-body {
  padding: var(--spacing-lg);
}

.deployment-section {
  margin-bottom: var(--spacing-xl);
}

.deployment-section:last-child {
  margin-bottom: 0;
}

.deployment-section h3 {
  font-size: 1.125rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.deployment-section p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.code-block {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.code-block pre {
  margin: 0;
  padding: var(--spacing-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

.code-block code {
  color: var(--color-text);
}

.btn-copy-code {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  background: var(--color-primary);
  border: none;
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-copy-code:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

.download-status {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text);
  display: none;
}

.download-status.success {
  display: block;
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.download-status.error {
  display: block;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.model-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.info-label {
  font-size: 0.75rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.info-value {
  font-size: 1rem;
  color: var(--color-primary);
  font-weight: 600;
  font-family: var(--font-mono);
}

/* Scrollbar Styling */
.config-sidebar::-webkit-scrollbar,
.main-content::-webkit-scrollbar,
.modal-content::-webkit-scrollbar {
  width: 8px;
}

.config-sidebar::-webkit-scrollbar-track,
.main-content::-webkit-scrollbar-track,
.modal-content::-webkit-scrollbar-track {
  background: var(--color-bg);
}

.config-sidebar::-webkit-scrollbar-thumb,
.main-content::-webkit-scrollbar-thumb,
.modal-content::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.config-sidebar::-webkit-scrollbar-thumb:hover,
.main-content::-webkit-scrollbar-thumb:hover,
.modal-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

@media (max-width: 640px) {
  .model-info-grid {
    grid-template-columns: 1fr;
  }
  
  .modal-content {
    max-height: 95vh;
  }
}