/* ========================================
   KI Chat Monitor v3 - Glemmtalerhof
   Frosty Glassmorphism Design
   ======================================== */

/* CSS Custom Properties */
:root {
  --blue: #2f4b96;
  --blue-light: #9ac3dc;
  --blue-lighter: #c5dff0;
  --orange: #ea5b13;
  --orange-light: #ff8a50;
  --yellow: #ffee3b;
  --yellow-dark: #e6d600;
  --green: #22c55e;
  --red: #ef4444;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --sidebar-width: 260px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
:root,
[data-theme="light"] {
  --bg-primary: #eef2f7;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.65);
  --bg-card-hover: rgba(255, 255, 255, 0.85);
  --bg-card-border: rgba(47, 75, 150, 0.1);
  --bg-card-border-hover: rgba(47, 75, 150, 0.2);
  --bg-input: rgba(255, 255, 255, 0.9);
  --bg-input-border: rgba(47, 75, 150, 0.15);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --glass-blur: 16px;
  --shadow-card: 0 4px 24px rgba(47, 75, 150, 0.08);
  --shadow-glow: 0 0 20px rgba(47, 75, 150, 0.06);
  --logo-filter: none;
  --scrollbar-thumb: rgba(47, 75, 150, 0.2);
  --scrollbar-track: transparent;
  --accent: var(--blue);
  --accent-dim: rgba(47, 75, 150, 0.08);
}

/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}

/* ========================================
   Sidebar
   ======================================== */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-right: 1px solid var(--bg-card-border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition), background var(--transition);
}

.sidebar-logo {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--bg-card-border);
}

.sidebar-logo .logo {
  height: 42px;
  width: auto;
  filter: var(--logo-filter);
  transition: filter var(--transition);
}

.sidebar-nav {
  flex: 1;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  width: 100%;
  text-align: left;
}

.nav-btn:hover {
  background: var(--accent-dim);
  color: var(--text-primary);
}

.nav-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  font-weight: 600;
}

.nav-btn svg {
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--bg-card-border);
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

/* ========================================
   User Profile (Sidebar Footer)
   ======================================== */
.user-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.25rem;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), var(--blue-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.user-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.user-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* ========================================
   Mobile Header
   ======================================== */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--bg-card-border);
  z-index: 101;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-logo {
  height: 28px;
  filter: var(--logo-filter);
  transition: filter var(--transition);
}

/* ========================================
   Main Content
   ======================================== */
.main-content {
  margin-left: var(--sidebar-width);
  padding: 2rem;
  min-height: 100vh;
  transition: margin var(--transition);
}

.view {
  display: none;
  animation: fadeIn 0.4s ease;
}

.view.active {
  display: block;
}

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

.view-header {
  margin-bottom: 2rem;
}

.view-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.view-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 0.25rem;
}

/* ========================================
   Glass Card Base
   ======================================== */
.glass-card,
.stat-card,
.chart-card,
.conversation-card {
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}

.glass-card:hover,
.stat-card:hover,
.chart-card:hover {
  border-color: var(--bg-card-border-hover);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* ========================================
   Stats Grid
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

#stat-languages {
  font-size: 1.1rem;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 0.15rem;
}

/* ========================================
   Charts Grid
   ======================================== */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.chart-card {
  padding: 1.5rem;
}

.chart-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  letter-spacing: 0.01em;
}

.chart-card canvas {
  width: 100% !important;
  max-height: 280px;
}

.chart-wide {
  grid-column: span 2;
}

/* ========================================
   Rating Analytics
   ======================================== */
.rating-analytics {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.rating-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.rating-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.rating-badge.bad {
  background: rgba(234, 91, 19, 0.15);
  color: var(--orange);
}

.rating-badge.ok {
  background: rgba(255, 238, 59, 0.15);
  color: var(--yellow-dark);
}

.rating-badge.good {
  background: rgba(47, 75, 150, 0.15);
  color: var(--blue-light);
}

.rating-badge.unrated {
  background: var(--accent-dim);
  color: var(--text-tertiary);
}

.improvement-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.improvement-tags h4 {
  width: 100%;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.improvement-tag {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  background: var(--accent-dim);
  color: var(--text-secondary);
  border: 1px solid var(--bg-card-border);
}

/* ========================================
   Filters Bar
   ======================================== */
.filters-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.filter-group label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-group select,
.filter-group input {
  padding: 0.6rem 2rem 0.6rem 0.9rem;
  border: 1px solid var(--bg-input-border);
  border-radius: var(--radius-xs);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.85rem;
  transition: all var(--transition);
  outline: none;
  height: 2.5rem;
  box-sizing: border-box;
}

.filter-group select:focus,
.filter-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.filter-group select {
  min-width: 140px;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
  background-size: 14px 14px;
  padding-right: 2.25rem;
}

.search-group {
  flex: 1;
  min-width: 200px;
}

.search-group input {
  width: 100%;
}

/* ========================================
   Conversations List
   ======================================== */
.conversations-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.conversation-card {
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.conversation-card.fully-rated {
  border-color: #22c55e;
  box-shadow: 0 0 0 1px #22c55e40, 0 2px 8px #22c55e20;
}

.conversation-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  transition: background var(--transition);
  user-select: none;
}

.conversation-header:hover {
  background: var(--bg-card-hover);
}

.conversation-flag {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.flag-icon {
  width: 24px;
  height: 16px;
  border-radius: 2px;
  overflow: hidden;
}

.conversation-preview {
  flex: 1;
  min-width: 0;
}

.conversation-preview-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.conversation-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.conversation-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.conversation-meta-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-tertiary);
}

.conversation-badges {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.msg-count-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  background: var(--accent-dim);
  color: var(--accent);
}

.rated-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  background: #dcfce7;
  color: #16a34a;
}

.chevron {
  color: var(--text-tertiary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.conversation-card.expanded .chevron {
  transform: rotate(180deg);
}

/* Conversation Body */
.conversation-body {
  overflow: hidden;
  height: 0;
  visibility: hidden;
  transition: height 0.25s ease, visibility 0s 0.25s;
}

.conversation-card.expanded .conversation-body {
  visibility: visible;
  transition: height 0.25s ease, visibility 0s;
}

.conversation-messages {
  padding: 0 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Q&A Pair */
.qa-pair {
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--bg-card-border);
  overflow: hidden;
}

.msg-bubble {
  padding: 1rem 1.25rem;
}

.msg-bubble.user {
  border-bottom: 1px solid var(--bg-card-border);
}

.msg-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.msg-label.user-label {
  color: var(--orange);
}

.msg-label.assistant-label {
  color: var(--blue-light);
}

.msg-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.msg-text a {
  color: var(--accent);
  text-decoration: none;
}

.msg-text a:hover {
  text-decoration: underline;
}

.msg-text img {
  max-width: 200px;
  border-radius: var(--radius-xs);
  margin: 0.5rem 0;
}

.msg-text .image-container {
  display: inline-block;
}

.msg-footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.response-time-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
}

.no-response {
  color: var(--red);
  font-style: italic;
}

/* ========================================
   Rating Widget
   ======================================== */
.rating-widget {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--bg-card-border);
  background: var(--accent-dim);
}

.rating-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.rating-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.85rem;
  border: 1.5px solid var(--bg-card-border);
  border-radius: 20px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.rating-btn:hover {
  border-color: var(--text-tertiary);
}

.rating-btn.active-bad {
  background: var(--orange);
  color: white;
  border-color: var(--orange);
}

.rating-btn.active-ok {
  background: var(--yellow);
  color: #1a1a1a;
  border-color: var(--yellow);
}

.rating-btn.active-good {
  background: var(--blue);
  color: white;
  border-color: var(--blue);
}

.rating-text-input {
  margin-top: 0.5rem;
}

.rating-text-input textarea {
  width: 100%;
  min-height: 80px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--bg-input-border);
  border-radius: var(--radius-xs);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.8rem;
  outline: none;
  resize: vertical;
  transition: all var(--transition);
}

.rating-text-input textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.rating-text-input textarea::placeholder {
  color: var(--text-tertiary);
}

.rating-text-submit {
  margin-top: 0.4rem;
  padding: 0.4rem 1rem;
  border: none;
  border-radius: var(--radius-xs);
  background: var(--accent);
  color: white;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.rating-text-submit:hover {
  opacity: 0.85;
}

.rating-text-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: -2px;
}

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

/* ========================================
   Toast Notifications
   ======================================== */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 500;
  color: white;
  z-index: 9999;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.toast-success {
  background: #16a34a;
}

.toast-error {
  background: #dc2626;
}

.toast-icon {
  font-weight: 700;
  margin-right: 0.35rem;
}

/* ========================================
   Animations
   ======================================== */
.stat-card,
.chart-card,
.conversation-card {
  animation: slideUp 0.5s ease both;
}

.stat-card:nth-child(1) { animation-delay: 0.05s; }
.stat-card:nth-child(2) { animation-delay: 0.1s; }
.stat-card:nth-child(3) { animation-delay: 0.15s; }
.stat-card:nth-child(4) { animation-delay: 0.2s; }

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
  .chart-wide {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .mobile-header {
    display: flex;
  }

  .main-content {
    margin-left: 0;
    padding: 1rem;
    padding-top: 76px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .stat-card {
    padding: 1rem;
  }

  .stat-icon {
    width: 40px;
    height: 40px;
  }

  .stat-value {
    font-size: 1.2rem;
  }

  .filters-bar {
    flex-direction: column;
    gap: 0.75rem;
  }

  .filter-group select,
  .filter-group input {
    width: 100%;
  }

  .conversation-header {
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }

  .conversation-badges {
    display: none;
  }

  .view-header h1 {
    font-size: 1.4rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .rating-buttons {
    flex-direction: column;
  }

  .rating-btn {
    justify-content: center;
  }
}

/* ========================================
   Overlay for mobile sidebar
   ======================================== */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

.sidebar-overlay.visible {
  display: block;
}

/* ========================================
   Pagination
   ======================================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 1.25rem 0 0.5rem;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 0.5rem;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.page-btn:hover:not(:disabled):not(.active) {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--blue);
  color: #fff;
  border-color: var(--blue);
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.page-info {
  margin-left: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

/* ========================================
   App Loader
   ======================================== */
.app-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  transition: opacity 0.4s ease;
}

.app-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

.app-loader-content {
  text-align: center;
}

.app-loader-content p {
  margin-top: 1rem;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.app-loader-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto;
  border: 3px solid var(--bg-card-border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}