/* ============================================
   ERP Nutzfahrzeuge - Design Tokens
   ============================================ */
:root {
  /* Brand Colors */
  --color-primary: #1e40af;
  --color-primary-hover: #1e3a8a;
  --color-primary-light: #dbeafe;
  --color-primary-dark: #1e3a8a;
  --color-secondary: #475569;
  --color-accent: #f59e0b;
  
  /* Status Colors */
  --color-success: #16a34a;
  --color-success-light: #dcfce7;
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-error: #dc2626;
  --color-error-light: #fee2e2;
  --color-info: #0ea5e9;
  --color-info-light: #e0f2fe;
  
  /* Surface Colors */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-hover: #f1f5f9;
  --color-surface-active: #e2e8f0;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  
  /* Text Colors */
  --color-text: #0f172a;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-text-inverse: #ffffff;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Layout */
  --sidebar-width: 260px;
  --sidebar-collapsed: 64px;
  --topbar-height: 64px;
  
  /* Z-Index */
  --z-sidebar: 30;
  --z-topbar: 40;
  --z-dropdown: 50;
  --z-modal: 100;
  --z-toast: 200;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-hover: #334155;
  --color-surface-active: #475569;
  --color-border: #334155;
  --color-border-strong: #475569;
  --color-text: #f1f5f9;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-primary-light: #1e3a8a;
  --color-success-light: #14532d;
  --color-warning-light: #78350f;
  --color-error-light: #7f1d1d;
  --color-info-light: #0c4a6e;
}

/* Base Reset */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-md) 0;
  z-index: var(--z-toast);
  text-decoration: none;
}
.skip-link:focus { top: 0; }

/* Focus Ring */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: var(--z-sidebar);
  transition: transform var(--transition-normal);
}
.sidebar.collapsed { transform: translateX(-100%); }
.sidebar-header {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-3);
}
.sidebar-logo {
  width: 32px; height: 32px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: white; font-weight: var(--font-weight-bold); font-size: var(--font-size-base);
}
.sidebar-title { font-weight: var(--font-weight-bold); font-size: var(--font-size-base); color: var(--color-text); }
.sidebar-subtitle { font-size: var(--font-size-xs); color: var(--color-text-muted); }
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-3);
}
.sidebar-nav-section { margin-bottom: var(--space-6); }
.sidebar-nav-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: 0 var(--space-3) var(--space-2);
  font-weight: var(--font-weight-semibold);
}
.sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  margin-bottom: 2px;
}
.sidebar-nav-item:hover { background: var(--color-surface-hover); color: var(--color-text); }
.sidebar-nav-item.active { background: var(--color-primary); color: white; }
.sidebar-nav-item.disabled { opacity: 0.4; cursor: not-allowed; }
.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--color-border);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin var(--transition-normal);
}
.main-content.sidebar-collapsed { margin-left: 0; }

/* Topbar */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  position: sticky;
  top: 0;
  z-index: var(--z-topbar);
}
.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.topbar-breadcrumb .current { color: var(--color-text); font-weight: var(--font-weight-semibold); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: var(--space-3); }

/* Content Area */
.content-area {
  flex: 1;
  padding: var(--space-6);
  max-width: 1600px;
  width: 100%;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.card-title { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }
.card-body { padding: var(--space-6); }

/* KPI Cards */
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}
.kpi-card:hover { box-shadow: var(--shadow-md); }
.kpi-card .kpi-label { font-size: var(--font-size-sm); color: var(--color-text-secondary); font-weight: var(--font-weight-medium); }
.kpi-card .kpi-value { font-size: var(--font-size-3xl); font-weight: var(--font-weight-bold); margin-top: var(--space-1); }
.kpi-card .kpi-trend { font-size: var(--font-size-xs); margin-top: var(--space-2); display: flex; align-items: center; gap: var(--space-1); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}
.badge-success { background: var(--color-success-light); color: var(--color-success); }
.badge-warning { background: var(--color-warning-light); color: #92400e; }
.badge-error { background: var(--color-error-light); color: var(--color-error); }
.badge-info { background: var(--color-info-light); color: #075985; }
.badge-neutral { background: var(--color-surface-active); color: var(--color-text-secondary); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.data-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
.data-table th:hover { color: var(--color-text); }
.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}
.data-table tbody tr { transition: background var(--transition-fast); }
.data-table tbody tr:hover { background: var(--color-surface-hover); }
.data-table .sortable-icon { opacity: 0.3; margin-left: var(--space-1); }
.data-table .sorted .sortable-icon { opacity: 1; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-primary); color: white; }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--color-surface-hover); }
.btn-ghost { background: transparent; color: var(--color-text-secondary); }
.btn-ghost:hover:not(:disabled) { background: var(--color-surface-hover); color: var(--color-text); }
.btn-danger { background: var(--color-error); color: white; }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }
.btn-sm { padding: var(--space-1) var(--space-3); font-size: var(--font-size-xs); }
.btn-lg { padding: var(--space-3) var(--space-6); font-size: var(--font-size-base); }

/* Inputs */
.input, .select, .textarea {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}
.input:disabled { background: var(--color-surface-hover); cursor: not-allowed; }
.input-error { border-color: var(--color-error); }
.input-error:focus { box-shadow: 0 0 0 3px var(--color-error-light); }
.label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}
.label .required { color: var(--color-error); }
.form-group { margin-bottom: var(--space-4); }
.form-hint { font-size: var(--font-size-xs); color: var(--color-text-muted); margin-top: var(--space-1); }
.form-error { font-size: var(--font-size-xs); color: var(--color-error); margin-top: var(--space-1); }

/* Tabs */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-6);
  overflow-x: auto;
}
.tab {
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab:hover { color: var(--color-text); }
.tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-2);
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-menu-btn { display: flex; }
  .content-area { padding: var(--space-4); }
  .kpi-grid { grid-template-columns: 1fr 1fr !important; }
  .data-table { font-size: var(--font-size-xs); }
  .data-table th, .data-table td { padding: var(--space-2); }
  .hide-mobile { display: none !important; }
  .topbar-actions .lang-switcher { display: none; }
}
@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr !important; }
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--color-surface-hover) 25%, var(--color-surface-active) 50%, var(--color-surface-hover) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}
.empty-state-icon { width: 64px; height: 64px; color: var(--color-text-muted); margin-bottom: var(--space-4); }
.empty-state-title { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); margin-bottom: var(--space-2); }
.empty-state-text { font-size: var(--font-size-sm); color: var(--color-text-secondary); max-width: 400px; margin-bottom: var(--space-4); }

/* Error State */
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}
.error-state-icon { width: 48px; height: 48px; color: var(--color-error); margin-bottom: var(--space-4); }

/* Chat (KI Copilot) */
.chat-container {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: 600px;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.chat-message {
  display: flex;
  gap: var(--space-3);
  max-width: 80%;
}
.chat-message.user { margin-left: auto; flex-direction: row-reverse; }
.chat-bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
}
.chat-message.assistant .chat-bubble { background: var(--color-surface-hover); }
.chat-message.user .chat-bubble { background: var(--color-primary); color: white; }
.chat-input-area {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4);
  display: flex;
  gap: var(--space-2);
}

/* Avatar */
.avatar {
  width: 32px; height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  flex-shrink: 0;
}
.avatar-lg { width: 48px; height: 48px; font-size: var(--font-size-lg); }

/* Select dropdown */
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-8);
}

/* Toggle Switch */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-border-strong);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.toggle.active { background: var(--color-primary); }
.toggle::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 20px; height: 20px;
  background: white;
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}
.toggle.active::after { transform: translateX(20px); }

/* Tooltip */
.tooltip {
  position: relative;
}
.tooltip:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-text-inverse);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  z-index: var(--z-dropdown);
  margin-bottom: var(--space-1);
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-surface-active);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-body { padding: var(--space-6); }
.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 300px;
  max-width: 400px;
  animation: slideIn var(--transition-normal);
}
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-error); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-info); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  justify-content: space-between;
}
.pagination-info { font-size: var(--font-size-sm); color: var(--color-text-secondary); }
.pagination-controls { display: flex; gap: var(--space-1); }
.pagination-btn {
  padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}
.pagination-btn:hover:not(:disabled) { background: var(--color-surface-hover); }
.pagination-btn.active { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* Image Grid */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-4);
}
.image-grid-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  position: relative;
  cursor: pointer;
  transition: transform var(--transition-fast);
}
.image-grid-item:hover { transform: scale(1.02); }
.image-grid-item img { width: 100%; height: 100%; object-fit: cover; }

/* File Upload Drop Zone */
.dropzone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

/* Stat Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

/* Two Column Layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
}
@media (max-width: 768px) {
  .two-col { grid-template-columns: 1fr; }
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-4);
}
.info-item {
  padding: var(--space-3) 0;
}
.info-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-1);
}
.info-value {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  font-weight: var(--font-weight-medium);
}

/* Warning Banner */
.warning-banner {
  background: var(--color-warning-light);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.warning-banner-icon { color: var(--color-warning); flex-shrink: 0; }

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 25;
}
@media (max-width: 768px) {
  .sidebar-overlay.show { display: block; }
}

/* ============================================
   v2 Additions: Card View, Calendar, Stammdaten
   ============================================ */

/* View Toggle */
.view-toggle {
  display: inline-flex;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.view-toggle-btn {
  padding: var(--space-2) var(--space-3);
  background: var(--color-surface);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all var(--transition-fast);
}
.view-toggle-btn:hover { background: var(--color-surface-hover); }
.view-toggle-btn.active { background: var(--color-primary); color: white; }

/* Vehicle Cards Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}
.vehicle-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.vehicle-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.vehicle-card-image {
  width: 100%;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-surface-active), var(--color-border));
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.vehicle-card-image .card-status-badge {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
}
.vehicle-card-body { padding: var(--space-4); }
.vehicle-card-title {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
}
.vehicle-card-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  margin-bottom: var(--space-3);
}
.vehicle-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-2);
}
.vehicle-card-price {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}
.vehicle-card-info {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

/* Contact Cards Grid */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  cursor: pointer;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.contact-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.contact-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.contact-card-name {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}
.contact-card-person {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.contact-card-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}
.contact-card-info-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Subtabs (Stammdaten) */
.subtabs {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-2);
}
.subtab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  border: 1px solid transparent;
}
.subtab:hover { background: var(--color-surface-hover); color: var(--color-text); }
.subtab.active { background: var(--color-primary); color: white; }

/* Stammdaten Table compact */
.stammdaten-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}
.stammdaten-table th {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}
.stammdaten-table td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.stammdaten-table tbody tr:hover { background: var(--color-surface-hover); }

/* Calendar */
.calendar {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.calendar-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}
.calendar-nav {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  background: var(--color-border);
  gap: 1px;
}
.calendar-day-header {
  padding: var(--space-2) var(--space-1);
  text-align: center;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  background: var(--color-surface);
  text-transform: uppercase;
}
.calendar-day {
  min-height: 90px;
  padding: var(--space-1);
  background: var(--color-surface);
  font-size: var(--font-size-xs);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.calendar-day:hover { background: var(--color-surface-hover); }
.calendar-day.other-month { background: var(--color-bg); color: var(--color-text-muted); }
.calendar-day.today { background: var(--color-primary-light); }
.calendar-day-num {
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1);
}
.calendar-day.today .calendar-day-num { color: var(--color-primary); }
.calendar-events {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}
.calendar-event {
  padding: 1px var(--space-1);
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}
.calendar-event-verkauf { background: var(--color-success-light); color: var(--color-success); }
.calendar-event-ueberfuehrung { background: var(--color-info-light); color: var(--color-info); }
.calendar-event-lieferung { background: var(--color-warning-light); color: #92400e; }
.calendar-event-termin { background: var(--color-primary-light); color: var(--color-primary); }
.calendar-event-pruefung { background: var(--color-error-light); color: var(--color-error); }

/* Calendar Legend */
.calendar-legend {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-3) var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.calendar-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}
.calendar-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-sm);
}

/* Event Modal */
.event-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.section-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

/* Stammdaten Section Card */
.stammdaten-section {
  margin-bottom: var(--space-6);
}

@media (max-width: 768px) {
  .card-grid { grid-template-columns: 1fr; }
  .calendar-day { min-height: 60px; }
  .calendar-event { font-size: 9px; }
  .subtab { font-size: var(--font-size-xs); padding: var(--space-1) var(--space-3); }
}

/* ============================================
   v3 Additions: Image Manager
   ============================================ */

/* Image Manager */
.image-manager {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.image-upload-zone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}
.image-upload-zone:hover, .image-upload-zone.dragover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.image-upload-zone.uploading {
  pointer-events: none;
  opacity: 0.7;
}
.image-upload-icon {
  width: 48px; height: 48px;
  color: var(--color-text-muted);
}
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-4);
}
.image-thumb {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--color-border);
  cursor: pointer;
  background: linear-gradient(135deg, var(--color-surface-active), var(--color-border));
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}
.image-thumb:hover { border-color: var(--color-primary); transform: scale(1.02); }
.image-thumb.main-photo { border-color: var(--color-warning); border-width: 3px; }
.image-thumb-placeholder {
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}
.image-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 50%, rgba(0,0,0,0.7));
  display: flex;
  align-items: flex-end;
  padding: var(--space-2);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.image-thumb:hover .image-thumb-overlay { opacity: 1; }
.image-thumb-actions {
  display: flex;
 gap: var(--space-1);
}
.image-thumb-action {
  width: 28px; height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.9);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: background var(--transition-fast);
}
.image-thumb-action:hover { background: white; }
.image-thumb-action.danger:hover { background: var(--color-error); color: white; }
.image-thumb-action.star.active { background: var(--color-warning); color: white; }
.image-thumb-category {
  position: absolute;
  top: var(--space-1);
  left: var(--space-1);
  padding: 2px var(--space-1);
  border-radius: var(--radius-sm);
  font-size: 9px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  background: rgba(255,255,255,0.9);
  color: var(--color-text);
}
.image-thumb-main-badge {
  position: absolute;
  top: var(--space-1);
  right: var(--space-1);
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--color-warning);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.9);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.lightbox-image {
 max-width: 90%;
  max-height: 80vh;
  border-radius: var(--radius-lg);
  background: var(--color-surface-active);
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-info {
  color: white;
  text-align: center;
  margin-top: var(--space-4);
}
.lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-close:hover { background: rgba(255,255,255,0.3); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.3); }
.lightbox-nav.prev { left: var(--space-4); }
.lightbox-nav.next { right: var(--space-4); }

/* KI Retusche Modal */
.retusche-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.retusche-option:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.retusche-option.selected { border-color: var(--color-primary); background: var(--color-primary-light); }
.retusche-option-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Photo Category Select */
.photo-category-select {
  padding: 4px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
}

/* Drag Handle */
.drag-handle {
  cursor: grab;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.image-thumb:hover .drag-handle { opacity: 0.6; }

@media (max-width: 768px) {
  .image-gallery { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
  .lightbox-nav { width: 36px; height: 36px; }
}

/* ============================================
   v4 Additions: Tabbed Form, Dashboard Config
   ============================================ */

/* Form Tabs */
.form-tabs {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--space-2);
  overflow-x: auto;
}
.form-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.form-tab:hover { background: var(--color-surface-hover); color: var(--color-text); }
.form-tab.active { background: var(--color-primary); color: white; }
.form-tab.has-error { color: var(--color-error); }
.form-tab.has-error.active { background: var(--color-error); color: white; }

/* ZB Field Reference */
.zb-field-ref {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 1px 4px;
  background: var(--color-surface-active);
  border-radius: var(--radius-sm);
  font-size: 10px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  margin-left: var(--space-1);
  vertical-align: middle;
}

/* Dashboard Config */
.dashboard-config-btn {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
}
.dashboard-widget {
  position: relative;
  transition: opacity var(--transition-fast);
}
.dashboard-widget.hidden { display: none; }
.dashboard-widget.dragging { opacity: 0.5; }
.dashboard-widget-handle {
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  cursor: grab;
  color: var(--color-text-muted);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.dashboard-widget:hover .dashboard-widget-handle { opacity: 1; }

/* Config Modal Item */
.config-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
}
.config-item-label { font-size: var(--font-size-sm); font-weight: var(--font-weight-medium); }

/* File Input Button */
.file-input-wrapper {
  position: relative;
  display: inline-block;
}
.file-input-wrapper input[type=file] {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Compact Info Grid (for more fields) */
.compact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
}
.compact-grid .form-group { margin-bottom: 0; }

/* 3-column layout for wider forms */
.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
@media (max-width: 1024px) {
  .three-col { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .three-col { grid-template-columns: 1fr; }
}

/* Form Section Title */
.form-section-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

/* ============================================
   v6 Mobile Responsive Fixes
   ============================================ */

/* Mobile-optimized base */
@media (max-width: 768px) {
  html { font-size: 14px; }
  body { font-size: 14px; -webkit-text-size-adjust: 100%; }
  
  /* Content area reduced padding */
  .content-area { padding: var(--space-3); }
  
  /* Topbar */
  .topbar { padding: 0 var(--space-3); height: 56px; }
  .topbar-breadcrumb { font-size: var(--font-size-xs); }
  .topbar-breadcrumb span:first-child { display: none; }
  .topbar-actions { gap: var(--space-1); }
  .topbar-actions .lang-switcher { display: flex; }
  .topbar-actions .lang-switcher .btn { min-width: 32px; padding: var(--space-1); }
  .topbar-actions .btn { min-width: 36px; min-height: 36px; padding: var(--space-1); }
  
  /* Sidebar overlay */
  .sidebar { width: 280px; z-index: 100; box-shadow: var(--shadow-xl); }
  .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 90; }
  .sidebar-overlay.show { display: block; }
  
  /* Main content full width on mobile */
  .main-content { margin-left: 0; }
  
  /* Hamburger button visible */
  .mobile-menu-btn { display: flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; }
  
  /* KPI cards: 2 columns on mobile */
  .kpi-grid { grid-template-columns: 1fr 1fr; gap: var(--space-3); }
  .kpi-card { padding: var(--space-3); }
  .kpi-card .kpi-value { font-size: var(--font-size-xl); }
  .kpi-card .kpi-label { font-size: var(--font-size-xs); }
  .kpi-card .kpi-trend { font-size: 10px; }
  
  /* Cards */
  .card { border-radius: var(--radius-md); }
  .card-header { padding: var(--space-3); }
  .card-body { padding: var(--space-3); }
  .card-title { font-size: var(--font-size-base); }
  
  /* Two-col becomes single col */
  .two-col { grid-template-columns: 1fr; gap: var(--space-4); }
  .three-col { grid-template-columns: 1fr; }
  
  /* Tables: horizontal scroll */
  .data-table { font-size: var(--font-size-xs); width: max-content; min-width: 100%; }
  .data-table th, .data-table td { padding: var(--space-2); white-space: nowrap; }
  .data-table th { font-size: 11px; }
  .card-body:has(.data-table) { padding: 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  
  /* Tabs: horizontal scroll */
  .tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; gap: var(--space-1); padding-bottom: var(--space-1); }
  .tab { padding: var(--space-2) var(--space-3); font-size: var(--font-size-xs); flex-shrink: 0; }
  
  /* Form tabs: horizontal scroll */
  .form-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; padding-bottom: var(--space-2); }
  .form-tab { flex-shrink: 0; padding: var(--space-2) var(--space-3); font-size: var(--font-size-xs); }
  
  /* Subtabs: horizontal scroll */
  .subtabs { overflow-x: auto; -webkit-overflow-scrolling: touch; flex-wrap: nowrap; padding-bottom: var(--space-2); }
  .subtab { flex-shrink: 0; font-size: var(--font-size-xs); padding: var(--space-1) var(--space-3); }
  
  /* Buttons: touch targets */
  .btn { min-height: 40px; padding: var(--space-2) var(--space-3); font-size: var(--font-size-sm); }
  .btn-sm { min-height: 36px; min-width: 36px; }
  .btn-lg { min-height: 48px; }
  
  /* Inputs: touch targets */
  .input, .select, .textarea { min-height: 40px; font-size: var(--font-size-sm); padding: var(--space-2); }
  
  /* Form groups: reduced spacing */
  .form-group { margin-bottom: var(--space-3); }
  
  /* Info grid: 2 columns on mobile */
  .info-grid { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
  .info-item { padding: var(--space-1) 0; }
  .info-label { font-size: 10px; }
  .info-value { font-size: var(--font-size-xs); }
  
  /* Card grid: single column on small mobile */
  .card-grid { grid-template-columns: 1fr; gap: var(--space-3); }
  .vehicle-card-image { aspect-ratio: 16/9; }
  .vehicle-card-body { padding: var(--space-3); }
  .vehicle-card-title { font-size: var(--font-size-sm); }
  .vehicle-card-price { font-size: var(--font-size-base); }
  
  /* Calendar: smaller cells */
  .calendar-day { min-height: 60px; padding: 2px; }
  .calendar-day-num { font-size: 10px; }
  .calendar-event { font-size: 8px; padding: 1px 2px; }
  .calendar-header { padding: var(--space-2) var(--space-3); }
  .calendar-title { font-size: var(--font-size-sm); }
  
  /* Pagination */
  .pagination { padding: var(--space-2); flex-direction: column; gap: var(--space-2); }
  .pagination-info { font-size: var(--font-size-xs); }
  .pagination-btn { min-width: 36px; min-height: 36px; }
  
  /* Modal: full width on mobile */
  .modal { max-width: 100%; max-height: 95vh; border-radius: var(--radius-md); margin: 0; }
  .modal-header { padding: var(--space-3); }
  .modal-body { padding: var(--space-3); }
  .modal-footer { padding: var(--space-3); flex-direction: column-reverse; }
  .modal-footer .btn { width: 100%; }
  
  /* Toast: full width on mobile */
  .toast-container { left: var(--space-2); right: var(--space-2); bottom: var(--space-2); }
  .toast { min-width: auto; max-width: 100%; }
  
  /* Chat */
  .chat-container { max-height: 400px; }
  .chat-message { max-width: 90%; }
  
  /* Dropzone */
  .dropzone { padding: var(--space-4); }
  
  /* Image gallery */
  .image-gallery { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: var(--space-2); }
  .image-thumb-action { width: 24px; height: 24px; }
  
  /* Lightbox nav */
  .lightbox-nav { width: 36px; height: 36px; }
  
  /* Headings */
  h1 { font-size: var(--font-size-xl) !important; }
  h2 { font-size: var(--font-size-lg) !important; }
  h3 { font-size: var(--font-size-base) !important; }
  
  /* View toggle */
  .view-toggle-btn { padding: var(--space-1) var(--space-2); font-size: var(--font-size-xs); min-height: 36px; }
  
  /* Stammdaten table */
  .stammdaten-table { font-size: var(--font-size-xs); }
  .stammdaten-table th, .stammdaten-table td { padding: var(--space-1) var(--space-2); white-space: nowrap; }
  
  /* ZB field ref badges */
  .zb-field-ref { font-size: 9px; padding: 1px 2px; }
  
  /* Compact grid on mobile */
  .compact-grid { grid-template-columns: 1fr; }
}

/* Very small mobile (< 400px) */
@media (max-width: 400px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .content-area { padding: var(--space-2); }
  .topbar { padding: 0 var(--space-2); }
  .card-body { padding: var(--space-2); }
}

/* Touch-friendly scrollbar */
@media (max-width: 768px) {
  ::-webkit-scrollbar { width: 4px; height: 4px; }
  ::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 2px; }
}

/* ============================================
   v7: KI-Copilot ChatGPT Interface + Verkauf List
   ============================================ */

/* ChatGPT-like Chat Interface */
.chat-fullscreen {
  display: flex;
  flex-direction: column;
  height: calc(100vh - var(--topbar-height) - 48px);
  max-height: 800px;
}
.chat-messages-full {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}
.chat-bubble-full {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 75%;
  white-space: pre-wrap;
}
.chat-msg-user {
  display: flex;
  justify-content: flex-end;
}
.chat-msg-user .chat-bubble-full {
  background: var(--color-primary);
  color: white;
  border-bottom-right-radius: var(--radius-sm);
}
.chat-msg-ai {
  display: flex;
  justify-content: flex-start;
  gap: var(--space-3);
}
.chat-msg-ai .chat-bubble-full {
  background: var(--color-surface-hover);
  border-bottom-left-radius: var(--radius-sm);
}
.chat-ai-avatar {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: white;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

/* Quick Command Chips */
.chat-chips {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-2) 0;
  -webkit-overflow-scrolling: touch;
}
.chat-chip {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background: var(--color-surface-hover);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.chat-chip:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* Chat Input Area */
.chat-input-area-full {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3);
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
}
.chat-textarea {
  flex: 1;
 padding: var(--space-3);
 border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  background: var(--color-surface);
  color: var(--color-text);
  resize: none;
  min-height: 48px;
  max-height: 200px;
  transition: border-color var(--transition-fast);
  line-height: var(--line-height-normal);
}
.chat-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}
.chat-send-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.chat-send-btn:hover { background: var(--color-primary-hover); }
.chat-send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Mic Button */
.chat-mic-btn {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-secondary);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.chat-mic-btn:hover { background: var(--color-surface-hover); }
.chat-mic-btn.recording {
  background: var(--color-error);
  color: white;
  border-color: var(--color-error);
  animation: pulse 1.5s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.1); }
}

/* Typing Indicator */
.typing-indicator {
  display: flex;
  gap: 4px;
  padding: var(--space-2) var(--space-3);
}
.typing-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: typingBounce 1.4s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-8px); opacity: 1; }
}

/* Verkauf List */
.verkauf-status-badge {
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}
.verkauf-status-entwurf { background: var(--color-surface-active); color: var(--color-text-secondary); }
.verkauf-status-pruefung { background: var(--color-warning-light); color: #92400e; }
.verkauf-status-abgeschlossen { background: var(--color-success-light); color: var(--color-success); }
.verkauf-status-storniert { background: var(--color-error-light); color: var(--color-error); }

.verkauf-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  cursor: pointer;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}
.verkauf-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

@media (max-width: 768px) {
  .chat-fullscreen { height: calc(100vh - 56px - 24px); }
  .chat-bubble-full { max-width: 90%; }
  .chat-input-area-full { padding: var(--space-2); }
  .chat-textarea { min-height: 40px; font-size: var(--font-size-xs); }
  .chat-send-btn, .chat-mic-btn { width: 40px; height: 40px; }
  .typing-dot { width: 6px; height: 6px; }
}

/* ============================================
   v8: Fixed-bottom Copilot Chat Layout
   ============================================ */
.copilot-container {
  display: flex;
  flex-direction: column;
  height: calc(100dvh - var(--topbar-height) - 48px);
  height: calc(100vh - var(--topbar-height) - 48px);
  background: var(--color-bg);
}
.copilot-chat {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}
.copilot-input-container {
  flex-shrink: 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: var(--space-3);
  position: sticky;
  bottom: 0;
  z-index: 10;
}
.copilot-chips {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-2) 0;
  -webkit-overflow-scrolling: touch;
}
.copilot-input-row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
}
.copilot-textarea {
  flex: 1;
  padding: var(--space-3);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  background: var(--color-surface);
  color: var(--color-text);
  resize: none;
  min-height: 48px;
  max-height: 200px;
  line-height: var(--line-height-normal);
  transition: border-color var(--transition-fast);
}
.copilot-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}
@media (max-width: 768px) {
  .copilot-container { height: calc(100dvh - 56px); height: calc(100vh - 56px); padding: 0 !important; }
  .copilot-chat { padding: var(--space-2); padding-bottom: 0; }
  .copilot-input-container { padding: var(--space-2); }
  .copilot-textarea { min-height: 40px; font-size: var(--font-size-xs); }
  .chat-bubble-full { max-width: 90%; }
}

/* v8 fix: Content area override for copilot page */
.content-area.copilot-page, .content-area:has(.copilot-container) {
  padding: 0;
  max-width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.content-area.copilot-page > div:first-child, .content-area:has(.copilot-container) > div:first-child {
  padding: var(--space-4) var(--space-6) 0;
  flex-shrink: 0;
}
.content-area.copilot-page .copilot-container, .content-area:has(.copilot-container) .copilot-container {
  height: calc(100vh - var(--topbar-height) - 80px);
  flex: 1;
  padding: 0 var(--space-6);
}
/* Fallback for browsers without :has() */
body:has(.copilot-container) .content-area {
  padding: 0;
  max-width: 100%;
  overflow: hidden;
}

/* ============================================
   v8c: Mobile Copilot Layout Fix (dvh, safe-area)
   ============================================ */

/* Dynamic viewport height with fallbacks */
.copilot-container {
  height: calc(100vh - var(--topbar-height) - 80px);
  height: calc(100dvh - var(--topbar-height) - 80px);
}

/* Safe area insets */
.topbar {
  padding-top: env(safe-area-inset-top);
  height: calc(var(--topbar-height) + env(safe-area-inset-top));
}
.copilot-input-container {
  padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
}

/* Mobile-specific copilot (< 768px) */
@media (max-width: 768px) {
  /* Content area: full width, no padding when copilot active */
  .content-area.copilot-page, .content-area:has(.copilot-container) {
    padding: 0 !important;
    margin: 0 !important;
    max-width: 100% !important;
    overflow: hidden;
  }
  .content-area.copilot-page > div:first-child, .content-area:has(.copilot-container) > div:first-child {
    padding: var(--space-2) var(--space-3) 0;
  }
  
  /* Copilot container: full height on mobile */
  .copilot-container {
    height: calc(100vh - var(--topbar-height) - 60px);
    height: calc(100dvh - var(--topbar-height) - 60px);
    padding: 0 var(--space-3);
  }
  
  /* Chat area: flex 1 with touch scroll */
  .copilot-chat {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--space-2);
  }
  
  /* Input container: sticky bottom with safe-area */
  .copilot-input-container {
    position: sticky;
    bottom: 0;
    padding: var(--space-2) var(--space-3);
    padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom));
    background: var(--color-surface);
    z-index: 10;
  }
  
  /* Chips: horizontal scroll on mobile */
  .copilot-chips {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    padding: var(--space-1) 0;
  }
  .chat-chip {
    flex-shrink: 0;
  }
  
  /* Textarea: smaller on mobile */
  .copilot-textarea {
    width: 100%;
    min-height: 40px;
    max-height: 120px;
    font-size: var(--font-size-xs);
    padding: var(--space-2);
  }
  
  /* Mic and Send: touch targets */
  .chat-mic-btn {
    min-width: 40px;
    min-height: 40px;
    width: 40px;
    height: 40px;
  }
  .chat-send-btn {
    min-width: 40px;
    min-height: 40px;
    width: 40px;
    height: 40px;
  }
  
  /* Chat bubbles: wider on mobile */
  .chat-bubble-full {
    max-width: 88%;
    font-size: var(--font-size-xs);
  }
  
  /* Typing dots: smaller on mobile */
  .typing-dot {
    width: 6px;
    height: 6px;
  }
}

/* Very small mobile (< 400px) */
@media (max-width: 400px) {
  .copilot-container {
    height: calc(100vh - var(--topbar-height) - 50px);
    height: calc(100dvh - var(--topbar-height) - 50px);
    padding: 0 var(--space-2);
  }
  .copilot-textarea {
    min-height: 36px;
  }
  .chat-bubble-full {
    max-width: 92%;
  }
}


/* v8d: Reliable copilot mobile fix */
body.copilot-active .content-area {
  padding: 0 !important;
  max-width: 100% !important;
  overflow: hidden !important;
  display: flex !important;
  flex-direction: column !important;
}
body.copilot-active .content-area > div:first-child {
  padding: var(--space-3) var(--space-4) 0;
  flex-shrink: 0;
}
body.copilot-active .content-area .copilot-container {
  height: calc(100dvh - var(--topbar-height) - 60px);
  height: calc(100vh - var(--topbar-height) - 60px);
  flex: 1;
  padding: 0 var(--space-4);
  max-height: none !important;
}
@media (max-width: 768px) {
  body.copilot-active .content-area {
    padding: 0 !important;
  }
  body.copilot-active .content-area > div:first-child {
    padding: var(--space-2) var(--space-3) 0;
  }
  body.copilot-active .content-area .copilot-container {
    height: calc(100dvh - 56px - 48px);
    height: calc(100vh - 56px - 48px);
    padding: 0 var(--space-2);
    max-height: none !important;
  }
  body.copilot-active .copilot-input-container {
    padding: var(--space-2) !important;
    padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom)) !important;
  }
  body.copilot-active .copilot-textarea {
    min-height: 44px !important;
    font-size: 16px !important;
  }
  body.copilot-active .copilot-input-row {
    gap: var(--space-2);
  }
}
@media (max-width: 400px) {
  body.copilot-active .content-area .copilot-container {
    padding: 0 var(--space-1);
  }
  body.copilot-active .copilot-textarea {
    min-height: 40px !important;
  }
}