:root {
  --bg: #000000;
  --bg-subtle: #0a0a0a;
  --surface: #111111;
  --surface-hover: #1a1a1a;
  --border: #222222;
  --border-hover: #333333;
  --text: #ededed;
  --text-secondary: #a1a1a1;
  --text-tertiary: #6b6b6b;
  --accent: #0070f3;
  --accent-hover: #0761d1;
  --accent-light: rgba(0, 112, 243, 0.1);
  --success: #0ddb8b;
  --success-light: rgba(13, 219, 139, 0.1);
  --warning: #f5a623;
  --warning-light: rgba(245, 166, 35, 0.1);
  --danger: #ff3b30;
  --danger-light: rgba(255, 59, 48, 0.1);
  --radius: 8px;
  --shadow: 0 0 0 1px rgba(255, 255, 255, 0.05);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
}

/* Environment-specific colors */
.env-home {
  --env-color: #0070f3;
  --env-glow: rgba(0, 112, 243, 0.15);
}

.env-sim {
  --env-color: #0ddb8b;
  --env-glow: rgba(13, 219, 139, 0.15);
}

.env-live {
  --env-color: #ff3b30;
  --env-glow: rgba(255, 59, 48, 0.15);
}

.env-analytics {
  --env-color: #f5a623;
  --env-glow: rgba(245, 166, 35, 0.15);
}

.env-config {
  --env-color: #6b6b6b;
  --env-glow: rgba(107, 107, 107, 0.15);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 15px;
  overflow-x: hidden;
}

html {
  overflow-x: hidden;
}

/* Layout */
.app {
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

.sidebar {
  width: 240px;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg) 100%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0, 112, 243, 0.08) 0%, transparent 100%);
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
  padding: 0.5rem;
}

.logo-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(145deg, var(--surface-hover) 0%, var(--surface) 100%);
  padding: 8px;
  box-shadow: 
    0 8px 24px rgba(0, 0, 0, 0.4),
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 0 40px var(--env-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
  position: relative;
}

.logo-icon::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 19px;
  background: linear-gradient(135deg, var(--env-glow), transparent 60%);
  opacity: 0.5;
  z-index: -1;
  transition: opacity 0.3s ease;
}

.logo:hover .logo-icon {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 
    0 12px 32px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 60px var(--env-glow),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.logo:hover .logo-icon::after {
  opacity: 0.8;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--text) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: letter-spacing 0.3s ease;
}

.logo:hover .logo-text {
  letter-spacing: 0.06em;
}

.sidebar-nav {
  flex: 1;
  padding: 1.25rem 1rem;
}

.nav-section {
  margin-bottom: 1.5rem;
}

.nav-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  padding: 0 0.75rem;
  margin-bottom: 0.625rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.875rem;
  border-radius: 10px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.2s;
  margin-bottom: 0.25rem;
  border: 1px solid transparent;
}

.nav-link:hover {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
  transform: translateX(4px);
}

.nav-link.active {
  background: linear-gradient(135deg, var(--env-glow) 0%, var(--surface) 100%);
  color: var(--text);
  font-weight: 600;
  border-color: var(--env-color);
  box-shadow: 0 0 20px var(--env-glow);
}

.nav-icon {
  width: 22px;
  height: 22px;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.875rem;
  transition: all 0.2s;
}

.user-menu:hover {
  border-color: var(--border-hover);
  background: var(--surface-hover);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: white;
  box-shadow: 0 2px 8px rgba(0, 112, 243, 0.3);
}

.main-content {
  flex: 1;
  margin-left: 240px;
  overflow-x: hidden;
}

.topbar {
  height: 90px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  background: linear-gradient(180deg, var(--bg-subtle) 0%, var(--bg) 100%);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  border-left: 5px solid var(--env-color);
  box-shadow: 0 4px 30px var(--env-glow), inset 0 -1px 0 var(--border);
}

.topbar-title {
  font-size: 1.875rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-title::before {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--env-color);
  box-shadow: 0 0 20px var(--env-color), 0 0 40px var(--env-color);
  animation: pulse-env 2s ease-in-out infinite;
}

@keyframes pulse-env {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

.topbar-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-top: 0.375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.topbar-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.content {
  padding: 1.5rem;
  max-width: 100%;
  width: 100%;
}

/* Grid */
.grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

@media (max-width: 1400px) {
  .grid-5, .grid-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1200px) {
  .grid-4, .grid-5, .grid-6 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4, .grid-5, .grid-6 { grid-template-columns: 1fr; }
}

/* Card */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: border-color 0.15s;
  min-width: 0;
}

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

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  text-transform: none;
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.card-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.card-section {
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: 1rem;
}

.card-danger {
  border: 2px solid var(--danger);
  background: var(--danger-light);
}

/* Stats */
.stat-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  font-size: 0.9375rem;
}

.stat-row + .stat-row {
  border-top: 1px solid var(--border);
}

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.stat-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
}

/* Button */
/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0 1.25rem;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover:not(:disabled) {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-sm {
  height: 36px;
  padding: 0 1rem;
  font-size: 0.875rem;
}

.btn-icon {
  width: 36px;
  padding: 0;
}

/* Badge */
/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--surface-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.badge-success {
  background: var(--success-light);
  color: var(--success);
  border-color: transparent;
}

.badge-warning {
  background: var(--warning-light);
  color: var(--warning);
  border-color: transparent;
}

.badge-danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: transparent;
}

.badge-accent {
  background: var(--accent-light);
  color: var(--accent);
  border-color: transparent;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Table */
.table-wrapper {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
  max-width: 100%;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 600px;
}

.table th,
.table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table th {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table tbody tr:hover {
  background: var(--surface-hover);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* Form */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.625rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 44px;
  padding: 0 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.9375rem;
  transition: all 0.15s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-textarea {
  height: auto;
  padding: 0.75rem;
  resize: vertical;
  min-height: 80px;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin-top: 0.375rem;
}

.form-row {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Alert */
.alert {
  padding: 1.25rem 1.5rem;
  border-radius: 12px;
  border: 1px solid;
  margin-bottom: 2rem;
  font-size: 0.9375rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-weight: 500;
}

.alert-success {
  background: var(--success-light);
  border-color: var(--success);
  color: var(--success);
}

.alert-danger {
  background: var(--danger-light);
  border-color: var(--danger);
  color: var(--danger);
}

.alert-warning {
  background: var(--warning-light);
  border-color: var(--warning);
  color: var(--warning);
}

.alert-info {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

/* Toggle */
.toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  transition: 0.2s;
  border-radius: 999px;
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  top: 3px;
  background: var(--text-tertiary);
  transition: 0.2s;
  border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
  background: var(--accent);
  border-color: var(--accent);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(18px);
  background: white;
}

/* Utilities */
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-accent { color: var(--accent); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }

.text-sm { font-size: 0.9375rem; }
.text-xs { font-size: 0.8125rem; }

.font-mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}

.flex {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--text-tertiary);
}

.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: 1.25rem;
  opacity: 0.4;
}

.empty-state-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.625rem;
}

.empty-state-text {
  font-size: 1rem;
  color: var(--text-tertiary);
}

/* Mobile */
@media (max-width: 900px) {
  .sidebar {
    width: 200px;
  }
  
  .main-content {
    margin-left: 200px;
  }
  
  .topbar {
    height: 70px;
    padding: 0 1.5rem;
  }
  
  .topbar-title {
    font-size: 1.5rem;
  }
  
  .topbar-subtitle {
    font-size: 0.9375rem;
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .topbar {
    height: 70px;
    padding: 0 1rem;
  }
  
  .topbar-title {
    font-size: 1.375rem;
  }
  
  .content {
    padding: 1rem;
  }
  
  .card-value {
    font-size: 1.5rem;
  }
}

/* Login Page */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: radial-gradient(circle at 50% 0%, rgba(0, 112, 243, 0.1), transparent 50%);
}

.login-card {
  width: 100%;
  max-width: 380px;
}

.login-header {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo {
  width: 220px;
  height: 220px;
  margin: 0 auto 2rem;
  border-radius: 32px;
  background: var(--surface);
  padding: 32px;
  box-shadow: 0 0 80px rgba(0, 112, 243, 0.4);
}

.login-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.login-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Loading States */
.btn-loading {
  opacity: 0.6;
  pointer-events: none;
  position: relative;
}

.btn-loading::after {
  content: "⏳";
  margin-left: 8px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.card-loading {
  opacity: 0.6;
  pointer-events: none;
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-subtle) 25%, var(--border) 50%, var(--bg-subtle) 75%);
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
  border-radius: 4px;
}

@keyframes loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Toast Notifications */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: 8px;
  display: flex;
  gap: 8px;
  align-items: center;
  transform: translateX(400px);
  transition: transform 0.3s;
  z-index: 9999;
  box-shadow: var(--shadow-lg);
  font-size: 0.9375rem;
  font-weight: 500;
  min-width: 280px;
}

.toast.show {
  transform: translateX(0);
}

.toast-success {
  background: #10b981;
  color: white;
}

.toast-error {
  background: #ef4444;
  color: white;
}

.toast-info {
  background: var(--accent);
  color: white;
}

.toast-warning {
  background: #f5a623;
  color: white;
}

/* Navigation Loading Overlay */
.nav-loader {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 99999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.nav-loader.active {
  opacity: 1;
  visibility: visible;
}

.nav-loader-content {
  text-align: center;
  background: linear-gradient(145deg, var(--surface) 0%, var(--bg-subtle) 100%);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 3rem 4rem;
  box-shadow: 
    0 0 0 1px rgba(255, 255, 255, 0.05),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 120px 40px var(--env-glow);
  position: relative;
}

.nav-loader-content::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--env-color), transparent, var(--env-color));
  opacity: 0.3;
  z-index: -1;
  animation: border-glow 2s ease-in-out infinite;
}

@keyframes border-glow {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.5; }
}

.nav-loader-logo {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  background: var(--bg);
  padding: 16px;
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.3),
    0 0 40px var(--env-glow);
  animation: pulse-logo 2s ease-in-out infinite;
}

@keyframes pulse-logo {
  0%, 100% { 
    transform: scale(1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3), 0 0 40px var(--env-glow);
  }
  50% { 
    transform: scale(1.06);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4), 0 0 60px var(--env-glow);
  }
}

.nav-loader-text {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav-loader-dots {
  display: inline-block;
  width: 24px;
  text-align: left;
}

.nav-loader-dots::after {
  content: '';
  animation: loading-dots 1.5s infinite;
}

@keyframes loading-dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* Info Tip */
.info-tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-size: 11px;
  font-weight: 700;
  cursor: help;
  margin-left: 6px;
  position: relative;
  vertical-align: middle;
  z-index: 1;
}

.info-tip::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  white-space: normal;
  max-width: 300px;
  width: max-content;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--border);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s, visibility 0.2s;
  z-index: 99999;
}

.info-tip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Ensure cards don't clip tooltips */
.card {
  overflow: visible;
}

.card-header {
  overflow: visible;
}