/* Enterprise AI Platform Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-darkest: #070a12;
  --bg-darker: #0c111e;
  --bg-card: rgba(18, 25, 41, 0.75);
  --bg-card-hover: rgba(26, 36, 58, 0.85);
  --bg-input: #111827;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #6366f1;
  --border-glow: rgba(99, 102, 241, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.25);
  --accent-cyan: #06b6d4;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-purple: #a855f7;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

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

body {
  background-color: var(--bg-darkest);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* App Container */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: rgba(12, 17, 30, 0.85);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 100;
}

.brand-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: var(--shadow-glow);
}

.brand-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-badge {
  font-size: 0.65rem;
  background: rgba(99, 102, 241, 0.2);
  color: #818cf8;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(99, 102, 241, 0.4);
  font-weight: 600;
  margin-left: auto;
}

.nav-menu {
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(99, 102, 241, 0.15);
  color: #fff;
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.nav-item-icon {
  font-size: 1.1rem;
}

.nav-item-badge {
  margin-left: auto;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
}

.badge-emerald {
  background: var(--accent-emerald-glow);
  color: var(--accent-emerald);
}

.badge-indigo {
  background: rgba(99, 102, 241, 0.2);
  color: #818cf8;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.server-status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

/* Main Content View */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  height: 64px;
  background: rgba(12, 17, 30, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 90;
}

.topbar-title-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.25rem;
}

.topbar-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.content-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px 48px;
}

/* Tab Views */
.tab-view {
  display: none;
  animation: fadeIn 0.25s ease forwards;
}

.tab-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Grid Layouts */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(99, 102, 241, 0.3);
}

.stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-icon-wrapper {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.stat-val {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.stat-subtext {
  margin-top: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.trend-positive {
  color: var(--accent-emerald);
  font-weight: 600;
}

/* Cards & Containers */
.card-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.panel-title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.1rem;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-desc {
  font-size: 0.825rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Two-column layout */
.dual-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 1024px) {
  .dual-col { grid-template-columns: 1fr; }
}

/* Interactive Controls & Forms */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control, .form-select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus, .form-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--border-glow);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
  color: #fff;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-danger {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.25);
}

/* File Drop Zone */
.dropzone {
  border: 2px dashed var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
  background: rgba(17, 24, 39, 0.4);
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.05);
}

.dropzone-icon {
  font-size: 2.2rem;
  margin-bottom: 10px;
  color: var(--accent-primary);
}

.dropzone-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.dropzone-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

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

.enterprise-table th {
  background: rgba(17, 24, 39, 0.7);
  padding: 12px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.enterprise-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.enterprise-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-production {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-canary {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-candidate {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-rolled-back {
  background: rgba(244, 63, 94, 0.15);
  color: var(--accent-rose);
  border: 1px solid rgba(244, 63, 94, 0.3);
}

/* Slider Controls */
.slider-container {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}

.traffic-slider {
  flex: 1;
  accent-color: var(--accent-primary);
  cursor: pointer;
}

.slider-val {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  min-width: 50px;
  color: var(--accent-primary);
}

/* Terminal Console View */
.terminal-window {
  background: #080c14;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #38bdf8;
  max-height: 280px;
  overflow-y: auto;
  line-height: 1.6;
}

.terminal-line {
  margin-bottom: 2px;
}

.terminal-line.error { color: var(--accent-rose); }
.terminal-line.warn { color: var(--accent-amber); }
.terminal-line.success { color: var(--accent-emerald); }

/* Progress Bar */
.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  margin: 10px 0;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-emerald));
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* Scorecard Radar Matrix */
.dimension-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.85rem;
}

.dimension-row:last-child {
  border-bottom: none;
}

.dim-name {
  font-weight: 500;
  color: var(--text-primary);
  flex: 2;
}

.dim-target {
  color: var(--text-muted);
  flex: 1;
  font-size: 0.75rem;
}

.dim-score {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-emerald);
  flex: 1;
  text-align: right;
}