/* === CLEAN CSS - VON 3000+ ZEILEN AUF <800 REDUZIERT === */

/* === VARIABLEN === */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --accent-primary: #3e3069;
  --accent-secondary: #f63a76;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --navbar-height: 65px;
  --container-width: 1400px;
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 15px rgba(0, 0, 0, 0.2);
  --shadow-base: 0 4px 6px rgba(0, 0, 0, 0.15);
  --transition: all 0.2s ease;
  --transition-base: 0.3s;
  --transition-bounce: 300ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --radius-full: 9999px;

  /* Button & Theme Variables */
  --btn-secondary-background: #e9ecef;
  --background-color-primary: var(--bg-primary);
  --color-warning: var(--warning);
  --color-text-secondary: var(--text-secondary);
  --color-text-inverse: #f8fafc;
}

[data-theme="dark"] {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --border-color: #334155;
  --accent-primary: #f63a76;
  --accent-secondary: #3e3069;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 15px rgba(0, 0, 0, 0.5);
  --shadow-base: 0 4px 6px rgba(0, 0, 0, 0.4);
  
  /* Dark Theme Button & Variables */
  --btn-secondary-background: #484848;
  --background-color-primary: var(--bg-primary);
  --color-text-inverse: #24292f;
}

/* === RESET === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  min-height: 100vh;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  transition: var(--transition);
}

body.no-scroll {
  overflow: hidden;
  position: fixed;
  width: 100%;
  height: 100%;
}

/* === LAYOUT === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.main-layout {
  padding-top: var(--navbar-height);
  min-height: 100vh;
}

.main-content {
  padding: var(--space-6) 0;
}

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
}

[data-theme="dark"] .navbar {
  background: rgba(15, 23, 42, 0.9);
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.navbar-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
}

.navbar-btn:hover {
  background: var(--bg-tertiary);
  transform: translateY(-1px);
}

.navbar-btn-hub {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.navbar-btn-settings {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  filter: brightness(0.9);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
}

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

/* === CARDS === */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: var(--space-6);
}

.card-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  font-weight: 600;
  font-size: 1.125rem;
}

.card-body {
  padding: var(--space-6);
}

.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* === PLAYGROUND CARDS === */
.playground-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.playground-card {
  cursor: pointer;
  transition: var(--transition);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  height: 450px;
  position: relative;
}

.playground-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-primary);
}

.card-preview {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 140px;
  overflow: hidden;
}

.preview-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

.playground-preview {
  background: var(--bg-tertiary);
}

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

.preview-icon {
  font-size: 3rem;
  color: white;
  opacity: 0.9;
}

.playground-card .card-header {
  position: absolute;
  bottom: 80px;
  left: 0;
  right: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.playground-card .card-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  padding: var(--space-4) var(--space-6);
  background: var(--bg-primary);
}

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: rgba(62, 48, 105, 0.1);
  color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid var(--success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  border: 1px solid var(--warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid var(--danger);
}

/* === PAGE HEADER === */
.page-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.page-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.page-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
}

/* === THEME TOGGLE === */
.theme-toggle {
  display: inline-block;
  cursor: pointer;
}

.theme-toggle-track {
  position: relative;
  width: 64px;
  height: 36px;
  background: var(--btn-secondary-background);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  overflow: hidden;
  box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.1);
}

.theme-toggle-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 28px;
  height: 28px;
  background: var(--background-color-primary);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
  z-index: 2;
}

.theme-toggle-thumb.dark {
  transform: translateX(28px);
  box-shadow: var(--shadow-base);
}

.theme-toggle-icons {
  position: relative;
  width: 100%;
  height: 100%;
}

.theme-toggle-sun,
.theme-toggle-moon {
  position: absolute;
  width: 18px;
  height: 18px;
  top: 50%;
  transform: translateY(-50%);
  transition: opacity var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle-sun {
  left: 8px;
  color: var(--color-warning);
  opacity: 1;
}

.theme-toggle-moon {
  right: 8px;
  color: var(--color-text-secondary);
  opacity: 1;
}

.theme-toggle-track.dark .theme-toggle-moon {
  color: var(--color-text-inverse);
}

.theme-toggle-track:not(.dark) .theme-toggle-sun {
  opacity: 0;
  transform: translateY(-50%);
}

.theme-toggle-track:not(.dark) .theme-toggle-moon {
  opacity: 1;
  transform: translateY(-50%);
}

.theme-toggle-track.dark .theme-toggle-moon {
  opacity: 0;
  transform: translateY(-50%);
}

.theme-toggle-track.dark .theme-toggle-sun {
  opacity: 1;
  transform: translateY(-50%);
}

/* === MODAL === */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.modal-close:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
}

/* === STATS & COMPONENTS === */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}

.stat-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-4);
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: var(--space-1);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
}

.section-icon {
  color: var(--text-secondary);
}

.card-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

/* === LOADING === */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
}

.loading-overlay.show,
.model-loading-overlay {
  display: flex;
}

.loading-content,
.model-loading-content {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  text-align: center;
  max-width: 400px;
  width: 90%;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--bg-tertiary);
  border-top: 4px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--space-4);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.model-loading-header {
  display: flex;
  flex-direction: column;
  align-items: center;
    gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.model-loading-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
}

.model-loading-info {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.info-card {
  text-align: left;
}

.info-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.info-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === FLOATING CONTROLS === */
.floating-control-panel {
  position: fixed;
  bottom: var(--space-6);
  left: var(--space-6);
  z-index: 100;
}

.floating-content {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.floating-action-button {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-2);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
}

.floating-action-button.visible {
  opacity: 1;
  visibility: visible;
}

.floating-action-button:hover {
  transform: translateY(-2px);
}

/* === CHARTS & DASHBOARDS === */
.chart-container {
  position: relative;
  height: 300px;
}

.chart-container.large {
  height: 400px;
}

.dashboard-main-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}

.features-primary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.feature-primary-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
    padding: var(--space-4);
  text-align: center;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.feature-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.feature-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-unit {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* === FAULT CONTROLS === */
.fault-type-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.fault-type-btn {
  display: flex;
    flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.fault-type-btn:hover {
  border-color: var(--accent-primary);
  background: var(--bg-tertiary);
}

.fault-type-btn.active {
  border-color: var(--accent-primary);
  background: rgba(62, 48, 105, 0.1);
}

.fault-icon {
  font-size: 1.5rem;
}

.fault-label {
  font-size: 0.875rem;
  font-weight: 600;
}

/* === GRIDS & UTILITIES === */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: var(--space-3);
}

.hidden {
  display: none !important;
}

.flex {
  display: flex;
}

.items-center {
    align-items: center;
  }

.justify-between {
  justify-content: space-between;
}

.gap-1 {
    gap: var(--space-1);
  }

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
  }

.gap-4 {
  gap: var(--space-4);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-center {
  text-align: center;
}

.mb-2 {
  margin-bottom: var(--space-2);
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

.mt-4 {
  margin-top: var(--space-4);
}

.mt-6 {
  margin-top: var(--space-6);
}

/* === SPLIT VIEW === */
.split-container {
  margin-bottom: var(--space-6);
}

.split-image-container {
  position: relative;
  width: 100%;
  height: 400px;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.split-image-container img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.segmentation-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-divider {
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  background: white;
  cursor: ew-resize;
  z-index: 10;
}

.split-labels {
  position: absolute;
  top: var(--space-2);
  left: var(--space-4);
  right: var(--space-4);
  display: flex;
  justify-content: space-between;
  z-index: 10;
}

.split-label {
  background: rgba(0, 0, 0, 0.7);
  color: white;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 600;
}

/* === PROGRESS & SETTINGS === */
.progress-container {
  margin: var(--space-4) 0;
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-tertiary);
  border-radius: 9999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent-primary);
  transition: width 0.3s ease;
  border-radius: 9999px;
}

.progress-text {
  text-align: center;
  margin-top: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.setting-group {
  margin-bottom: var(--space-6);
}

.setting-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.setting-control {
  display: flex;
  gap: var(--space-3);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {

  .dashboard-main-grid,
  .signal-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }

  .navbar {
    padding: 0 var(--space-4);
    height: 60px;
  }

  :root {
    --navbar-height: 60px;
  }

  .navbar-btn span {
  display: none;
  }

  .playground-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .playground-card {
    height: auto;
    position: relative;
  }

  .card-preview {
  position: relative;
    height: 200px;
  }

  .playground-card .card-header,
  .playground-card .card-footer {
  position: relative;
  }

  .page-title {
    font-size: 2rem;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-3);
  }

  .features-primary-grid {
    grid-template-columns: 1fr;
  }

  .fault-type-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  /* Mobile Theme Toggle */
  .theme-toggle-track {
    width: 52px;
    height: 28px;
  }
  
  .theme-toggle-thumb {
    width: 20px;
    height: 20px;
    top: 4px;
    left: 4px;
  }
  
  .theme-toggle-thumb.dark {
    transform: translateX(24px);
  }
  
  .theme-toggle-sun,
  .theme-toggle-moon {
    width: 14px;
    height: 14px;
  }
  
  .theme-toggle-sun {
    left: 5px;
  }
  
  .theme-toggle-moon {
    right: 5px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }

  .navbar {
    padding: 0 var(--space-3);
  }

  .page-title {
    font-size: 1.75rem;
  }

  .playground-grid {
    gap: var(--space-4);
  }

  .card-preview {
    height: 150px;
  }

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