/* ================================================
   Alpha Provisionsanalyse-System - Main Styles
   ================================================ */

:root {
  /* Alpha Branding Colors */
  --primary-color: #003366;        /* Dunkelblau */
  --secondary-color: #00A3E0;      /* Hellblau */
  --accent-color: #FF6B00;         /* Orange für Warnungen */

  /* Semantic Colors */
  --success-color: #10B981;        /* Grün */
  --warning-color: #F59E0B;        /* Gelb */
  --danger-color: #EF4444;         /* Rot */
  --info-color: #3B82F6;           /* Blau */

  /* Risk Colors */
  --risk-green: #10B981;
  --risk-yellow: #F59E0B;
  --risk-orange: #F97316;
  --risk-red: #EF4444;

  /* Neutral Colors */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* 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 -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Typography */
  --font-family: 'Aptos', 'Segoe UI Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Courier New', Courier, monospace;
}

/* ================================================
   Reset & Base Styles
   ================================================ */

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

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

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-900);
  background-color: var(--gray-50);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--gray-900);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-color);
}

/* ================================================
   Header
   ================================================ */

.app-header {
  background: linear-gradient(135deg, var(--primary-color), #004080);
  color: white;
  padding: var(--spacing-lg) var(--spacing-xl);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: white;
  color: var(--primary-color);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  letter-spacing: 2px;
}

.logo-section h1 {
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.version-badge {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 500;
}

.header-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

/* ================================================
   Layout
   ================================================ */

.app-main {
  display: flex;
  min-height: calc(100vh - 80px);
  max-width: 1920px;
  margin: 0 auto;
  width: 100%;
}

.sidebar {
  width: 200px;
  flex-shrink: 0;
  background: white;
  border-right: 1px solid var(--gray-200);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--gray-700);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--gray-100);
  color: var(--primary-color);
}

.nav-item.active {
  background: var(--secondary-color);
  color: white;
}

.nav-item .icon {
  font-size: 1.25rem;
}

.sidebar-stats {
  margin-top: auto;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

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

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

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

.stat-value.alert {
  color: var(--danger-color);
}

.content-area {
  flex: 1;
  padding: var(--spacing-xl);
  overflow-y: auto;
}

/* ================================================
   Sections
   ================================================ */

.section {
  display: none;
}

.section.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}

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

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

.section-header h2 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
}

.section-description {
  color: var(--gray-600);
  font-size: 0.95rem;
}

.dashboard-filters,
.history-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

/* ================================================
   Cards
   ================================================ */

.card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin: 0;
}

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

.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--gray-200);
  color: var(--gray-700);
}

.status-badge.success {
  background: var(--success-color);
  color: white;
}

.status-badge.warning {
  background: var(--warning-color);
  color: white;
}

.status-badge.danger {
  background: var(--danger-color);
  color: white;
}

/* ================================================
   Drop Zone
   ================================================ */

.drop-zone {
  border: 3px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
  background: var(--gray-50);
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--secondary-color);
  background: rgba(0, 163, 224, 0.05);
}

.drop-zone-content .upload-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.drop-zone-content h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--gray-700);
}

.drop-zone-content p {
  color: var(--gray-500);
  margin-bottom: var(--spacing-lg);
}

/* ================================================
   File List
   ================================================ */

.file-list {
  margin-top: var(--spacing-lg);
}

.file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-200);
}

.file-list-header h4 {
  margin: 0;
  color: var(--gray-700);
}

.files-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 400px;
  overflow-y: auto;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
  background: var(--gray-50);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.file-item:hover {
  background: var(--gray-100);
}

.file-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

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

.file-details {
  flex: 1;
}

.file-name {
  font-weight: 500;
  color: var(--gray-900);
  margin-bottom: 0.25rem;
}

.file-meta {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.file-status {
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.file-status.pending {
  background: var(--gray-200);
  color: var(--gray-700);
}

.file-status.processing {
  background: var(--info-color);
  color: white;
}

.file-status.success {
  background: var(--success-color);
  color: white;
}

.file-status.error {
  background: var(--danger-color);
  color: white;
}

/* ================================================
   Progress
   ================================================ */

.progress-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.progress-stat {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.progress-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

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

.progress-bar-container {
  width: 100%;
  height: 8px;
  background: var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
  border-radius: var(--radius-lg);
  transition: width var(--transition-base);
  width: 0%;
}

.progress-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 300px;
  overflow-y: auto;
}

/* ================================================
   Summary Cards
   ================================================ */

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.summary-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  transition: all var(--transition-base);
}

.summary-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
}

.card-icon.green {
  background: rgba(16, 185, 129, 0.1);
  color: var(--risk-green);
}

.card-icon.yellow {
  background: rgba(245, 158, 11, 0.1);
  color: var(--risk-yellow);
}

.card-icon.orange {
  background: rgba(249, 115, 22, 0.1);
  color: var(--risk-orange);
}

.card-icon.red {
  background: rgba(239, 68, 68, 0.1);
  color: var(--risk-red);
}

.card-content {
  flex: 1;
}

.card-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.card-label {
  font-size: 0.875rem;
  color: var(--gray-600);
}

/* ================================================
   Charts
   ================================================ */

.charts-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.chart-card {
  min-height: 350px;
}

.chart-card .card-body {
  position: relative;
  height: 300px;
}

/* ================================================
   Grids
   ================================================ */

.analyses-grid,
.agencies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.analysis-card,
.agency-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  cursor: pointer;
}

.analysis-card:hover,
.agency-card:hover {
  background: white;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.report-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.report-option .card-body {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* ================================================
   Empty States
   ================================================ */

.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--gray-500);
  font-style: italic;
}

/* ================================================
   Responsive
   ================================================ */

@media (max-width: 1024px) {
  .app-main {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--gray-200);
  }

  .sidebar-nav {
    flex-direction: row;
    overflow-x: auto;
  }

  .sidebar-stats {
    flex-direction: row;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .logo-section {
    flex-direction: column;
    text-align: center;
  }

  .charts-row {
    grid-template-columns: 1fr;
  }

  .summary-cards {
    grid-template-columns: 1fr;
  }
}