/* Theme variables & setup */
:root {
  --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-secondary: 'Plus Jakarta Sans', sans-serif;

  /* Colors */
  --bg-app: #0B0F19;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(26, 36, 57, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-hover: rgba(255, 255, 255, 0.15);
  
  --text-main: #F3F4F6;
  --text-muted: #9CA3AF;
  --text-dimmed: #6B7280;
  
  --accent-primary: #3B82F6; /* Radiant Blue */
  --accent-gradient: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
  --accent-glow: rgba(59, 130, 246, 0.35);

  --color-success: #10B981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  
  --color-warning: #F59E0B;
  --color-warning-bg: rgba(245, 158, 11, 0.15);
  --color-warning-border: rgba(245, 158, 11, 0.3);
  
  --color-critical: #EF4444;
  --color-critical-bg: rgba(239, 68, 68, 0.18);
  --color-critical-border: rgba(239, 68, 68, 0.35);

  /* Shadows & blur */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(12px);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: var(--font-primary);
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 1rem 1.5rem;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-area .icon {
  font-size: 2.2rem;
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.title-meta h1 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.title-meta .sub-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-secondary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.version-tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
}

.app-body {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.5rem;
  flex-grow: 1;
  padding-top: 1.5rem;
  min-height: 0; /* Important for inner scrolling */
}

/* Cards & Glassmorphism */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-card:hover {
  border-color: var(--border-color-hover);
}

h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.section-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Left Column: Control Panel */
.control-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
}

/* File Upload Zone */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: 12px;
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.15);
}

.upload-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.upload-icon {
  font-size: 2.2rem;
  margin-bottom: 0.25rem;
  transition: transform var(--transition-normal);
}

.upload-zone:hover .upload-icon {
  transform: translateY(-4px);
}

.upload-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
}

.upload-subtext {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.browse-link {
  color: var(--accent-primary);
  text-decoration: underline;
  cursor: pointer;
  font-weight: 600;
}

.file-info-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 0.85rem;
  text-align: left;
}

.file-name {
  font-weight: 600;
  color: var(--text-main);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  max-width: 170px;
}

.file-size {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.remove-btn {
  background: none;
  border: none;
  color: var(--color-critical);
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1;
}

.remove-btn:hover {
  transform: scale(1.2);
}

.hidden {
  display: none !important;
}

/* Strategy selection */
.settings-group {
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
}

.settings-group h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-family: var(--font-secondary);
}

.strategy-selector {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.radio-card {
  display: flex;
  cursor: pointer;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition-fast);
  position: relative;
}

.radio-card input[type="radio"] {
  margin-right: 0.75rem;
  margin-top: 0.25rem;
  accent-color: var(--accent-primary);
}

.radio-content {
  display: flex;
  flex-direction: column;
}

.radio-content .badge {
  font-size: 0.65rem;
  font-weight: 700;
  background: var(--color-success-bg);
  color: var(--color-success);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 0.25rem;
}

.radio-content .label {
  font-size: 0.9rem;
  font-weight: 600;
}

.radio-content .desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.radio-card:hover, .radio-card:has(input[type="radio"]:checked) {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.03);
}

/* Rules / Instructions list */
.rules-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

.rules-card h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.validation-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.validation-list li {
  display: flex;
  gap: 0.5rem;
  font-size: 0.8rem;
}

.bullet {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.bullet.success {
  background-color: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
}

.validation-list li strong {
  display: block;
  font-size: 0.825rem;
  color: var(--text-main);
  line-height: 1.2;
}

.validation-list li .sub {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Buttons */
.primary-btn {
  background: var(--accent-gradient);
  color: white;
  border: none;
  padding: 0.85rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px var(--accent-glow);
  transition: all var(--transition-normal);
}

.primary-btn:hover:not(:disabled) {
  opacity: 0.95;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.45);
}

.primary-btn:active:not(:disabled) {
  transform: translateY(0);
}

.primary-btn:disabled {
  background: var(--text-dimmed);
  color: var(--text-muted);
  box-shadow: none;
  cursor: not-allowed;
}

.secondary-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.secondary-btn:hover {
  color: var(--text-main);
  border-color: var(--border-color-hover);
  background: rgba(255, 255, 255, 0.05);
}

.full-width {
  width: 100%;
}

/* Spinner loader */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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

/* Right Column: Display Panel */
.display-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.welcome-card {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-grow: 1;
  text-align: center;
  min-height: 400px;
}

.welcome-inner {
  max-width: 480px;
}

.graphic-icon {
  font-size: 3.5rem;
  display: block;
  margin-bottom: 1.5rem;
  animation: pulse 2s infinite ease-in-out;
  filter: drop-shadow(0 0 15px rgba(245, 158, 11, 0.3));
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.welcome-inner h2 {
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.welcome-inner p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Pulsing Loader for extraction screen */
.pulsing-loader {
  width: 60px;
  height: 60px;
  background: var(--accent-gradient);
  border-radius: 50%;
  margin: 0 auto 2rem;
  position: relative;
  box-shadow: 0 0 20px var(--accent-glow);
}

.pulsing-loader::before, .pulsing-loader::after {
  content: '';
  position: absolute;
  top: -10px; left: -10px; right: -10px; bottom: -10px;
  border: 2px solid var(--accent-primary);
  border-radius: 50%;
  opacity: 0.5;
  animation: ring-pulse 1.8s infinite cubic-bezier(0.215, 0.610, 0.355, 1);
}

.pulsing-loader::after {
  animation-delay: 0.6s;
}

@keyframes ring-pulse {
  0% { transform: scale(0.8); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

/* Result Dashboard Layout */
.dashboard-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex-grow: 1;
  min-height: 0;
}

/* Metrics row */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem !important;
}

.metric-icon {
  font-size: 1.8rem;
  background: rgba(255, 255, 255, 0.05);
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}

.metric-meta {
  display: flex;
  flex-direction: column;
}

.metric-label {
  font-size: 0.75rem;
  font-family: var(--font-secondary);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.metric-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
}

.metric-card.critical-alert {
  border-color: var(--color-critical-border);
  background: rgba(239, 68, 68, 0.05);
}
.metric-card.critical-alert .metric-icon {
  background: var(--color-critical-bg);
  border-color: var(--color-critical-border);
}
.metric-card.critical-alert .metric-value {
  color: var(--color-critical);
}

.metric-card.warning-alert {
  border-color: var(--color-warning-border);
  background: rgba(245, 158, 11, 0.05);
}
.metric-card.warning-alert .metric-icon {
  background: var(--color-warning-bg);
  border-color: var(--color-warning-border);
}
.metric-card.warning-alert .metric-value {
  color: var(--color-warning);
}

/* Visualizer Card (Main Sheet Area) */
.visualizer-container {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0 !important; /* Reset padding for grid alignment */
  overflow: hidden;
}

.visualizer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  background: rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

.tab-scroller {
  overflow-x: auto;
  max-width: 65%;
}

.tab-list {
  display: flex;
  gap: 0.5rem;
}

.tab-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid transparent;
  padding: 0.4rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
  color: var(--text-main);
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.1);
}

.action-bar {
  display: flex;
  gap: 0.5rem;
}

.download-btn {
  text-decoration: none;
  background: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--color-success);
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.download-btn:hover {
  background: var(--color-success);
  color: white;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  transform: translateY(-1px);
}

/* Table styling */
.table-view-container {
  flex-grow: 1;
  overflow: hidden;
  position: relative;
  background: rgba(0, 0, 0, 0.1);
}

.table-scroll-wrapper {
  width: 100%;
  height: 100%;
  overflow: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.data-table th {
  position: sticky;
  top: 0;
  background: #111827;
  color: var(--text-main);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  font-family: var(--font-secondary);
  z-index: 10;
}

.data-table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  color: var(--text-muted);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.data-table tr:hover td {
  background: var(--bg-card-hover);
  color: var(--text-main);
}

.data-table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.015);
}

/* Column highlighting */
.data-table tr.has-anomaly td.remarks-col {
  color: var(--color-critical);
  font-style: italic;
}

.data-table td.cell-critical {
  background: var(--color-critical-bg) !important;
  color: #F87171 !important;
  font-weight: 600;
  border: 1px solid var(--color-critical-border);
}

.data-table td.cell-warning {
  background: var(--color-warning-bg) !important;
  color: #FBBF24 !important;
  font-weight: 600;
  border: 1px solid var(--color-warning-border);
}

/* Table Footer */
.table-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1.25rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
  background: rgba(0, 0, 0, 0.15);
}

.table-legend {
  display: flex;
  gap: 1rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.legend-box {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}
.legend-box.critical {
  background-color: var(--color-critical-bg);
  border: 1px solid var(--color-critical-border);
}
.legend-box.warning {
  background-color: var(--color-warning-bg);
  border: 1px solid var(--color-warning-border);
}

/* Anomalies Feed Panel */
.anomalies-container {
  height: 250px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.anomalies-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
}

.anomalies-header h3 {
  font-size: 1rem;
  font-weight: 700;
}

.anomalies-badge {
  background: var(--color-critical-bg);
  color: var(--color-critical);
  font-weight: 700;
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--color-critical-border);
}

.anomalies-list-wrapper {
  overflow-y: auto;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding-right: 4px;
}

.anomaly-item-card {
  display: flex;
  gap: 0.75rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.anomaly-item-card:hover {
  border-color: var(--border-color-hover);
  background: rgba(255, 255, 255, 0.04);
}

.anomaly-item-card.critical {
  border-left: 3px solid var(--color-critical);
}

.anomaly-item-card.warning {
  border-left: 3px solid var(--color-warning);
}

.anomaly-icon {
  font-size: 1.15rem;
  margin-top: 0.1rem;
}

.anomaly-details {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex-grow: 1;
}

.anomaly-meta {
  display: flex;
  gap: 0.50rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-secondary);
}

.anomaly-meta span {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.05rem 0.35rem;
  border-radius: 4px;
}

.anomaly-text {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-main);
}

.anomaly-value-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.anomaly-value-tag code {
  background: rgba(0, 0, 0, 0.3);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  color: var(--text-main);
  font-family: monospace;
}

/* Notification Banner */
.notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #1F2937;
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 9999;
  animation: slide-in var(--transition-fast) forwards;
}

.notification.error {
  border-left: 4px solid var(--color-critical);
}

.notification.success {
  border-left: 4px solid var(--color-success);
}

@keyframes slide-in {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.close-notification {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
}

.close-notification:hover {
  color: var(--text-main);
}