:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-hover: #1f2937;
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --accent-purple: #8b5cf6;
  --sidebar-width: 240px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Glassmorphism card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 50;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-nav {
  padding: 12px 8px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-item:hover, .nav-item.active {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-left: 3px solid var(--accent-blue);
}

/* Content Area */
.main-wrapper {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.top-bar {
  height: 64px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 40;
}

.content-container {
  padding: 24px;
  flex: 1;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-shadow { background: rgba(139, 92, 246, 0.2); color: #c4b5fd; border: 1px solid #8b5cf6; }
.badge-demo { background: rgba(59, 130, 246, 0.2); color: #93c5fd; border: 1px solid #3b82f6; }
.badge-real { background: rgba(239, 68, 68, 0.2); color: #fca5a5; border: 1px solid #ef4444; }
.badge-green { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; border: 1px solid #10b981; }
.badge-red { background: rgba(239, 68, 68, 0.2); color: #fca5a5; border: 1px solid #ef4444; }
.badge-yellow { background: rgba(245, 158, 11, 0.2); color: #fcd34d; border: 1px solid #f59e0b; }

/* Grid layouts */
.grid-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
}

.metric-title {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

th {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
}

tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.btn-primary { background: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: #2563eb; }
.btn-danger { background: var(--accent-red); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border-color); }
.btn-secondary:hover { background: #374151; }

/* Form inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-input, .form-select {
  width: 100%;
  background: #1f2937;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  outline: none;
}

.form-input:focus, .form-select:focus {
  border-color: var(--accent-blue);
}

/* Auth Center Screen */
.auth-container {
  min-height: 100vh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top, #1e293b, #0b0f19);
  padding: 20px;
}

.auth-box {
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

/* Mobile responsive */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }
  .sidebar .logo-text, .sidebar span {
    display: none;
  }
  .main-wrapper {
    margin-left: 60px;
  }
}