:root {
  /* Background Layers */
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --bg-hover: #475569;
  --bg-deep: #0f172a;
  
  /* Text Hierarchy */
  --text-primary: #FFFFFF;
  --text-secondary: #E2E8F0;
  --text-tertiary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-disabled: #64748B;
  
  /* Gold Accent (Use Sparingly!) */
  --accent-gold: #F59E0B;
  --accent-gold-light: #FBBF24;
  --accent-gold-dark: #D97706;
  --accent-gold-glow: rgba(245, 158, 11, 0.3);
  
  /* Semantic Colors (Subtle Tints) */
  --success: #6EE7B7;
  --success-bg: rgba(110, 231, 183, 0.1);
  --success-border: rgba(110, 231, 183, 0.3);
  --warning: #FCA5A5;
  --warning-bg: rgba(252, 165, 165, 0.1);
  --warning-border: rgba(252, 165, 165, 0.3);
  --info: #93C5FD;
  --info-bg: rgba(147, 197, 253, 0.1);
  --info-border: rgba(147, 197, 253, 0.3);
  
  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-medium: rgba(255, 255, 255, 0.2);
  --border-strong: rgba(255, 255, 255, 0.3);
  --border-gold: rgba(245, 158, 11, 0.4);
  
  /* Legacy/Compatibility */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(24px);
  --sidebar-width: 260px;
}

body {
  background: var(--bg-deep);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0, transparent 50%), 
    radial-gradient(at 50% 0%, rgba(168, 85, 247, 0.1) 0, transparent 50%);
  color: var(--text-primary);
  font-family: "Inter", sans-serif;
  letter-spacing: -0.01em;
  margin: 0;
  overflow-x: hidden;
}

/* Layout Architecture */
.app-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    z-index: 1000;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    min-width: 0; /* Prevent flex overflow */
}

/* Typography & Labels */
h1, h2, h3, h4, h5, h6 {
    letter-spacing: -0.025em;
    font-weight: 700;
}

.uppercase-label {
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: block;
}

/* Premium Sidebar Links */
.sidebar-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    margin-bottom: 0.5rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar-link i {
    font-size: 1.25rem;
    margin-right: 0.75rem;
}

.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sidebar-link.active {
    background: var(--accent-gold);
    color: #000000;
    font-weight: 600;
    box-shadow: 0 0 20px var(--accent-gold-glow);
}

/* Glassmorphism Cards */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
}

.table {
  color: var(--text-primary);
  font-size: 0.9rem;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
  --bs-table-bg: transparent;
  --bs-table-hover-bg: rgba(255, 255, 255, 0.05);
  --bs-table-striped-bg: rgba(255, 255, 255, 0.02);
}

.table tr {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
}

.table thead th {
  border: none;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 1rem;
}

.table td {
  border: none;
  padding: 1rem;
  vertical-align: middle;
}

.dropdown-menu-dark.glass-card {
    background: rgba(15, 23, 42, 0.95) !important;
    border: 1px solid var(--glass-border) !important;
}

/* Gold Accent Utilities */
.text-gold {
  color: var(--accent-gold) !important;
}

.text-gold-glow {
  color: var(--text-primary) !important;
  text-shadow: 0 0 20px var(--accent-gold-glow);
  font-weight: 500;
}

.border-gold {
  border-color: var(--border-gold) !important;
}

.border-gold-left {
  border-left: 3px solid var(--accent-gold) !important;
}

.bg-gold {
  background-color: var(--accent-gold) !important;
  color: #000000 !important;
}

/* Button Styles */
.btn-gold {
  background: var(--accent-gold);
  color: #000000;
  font-weight: 600;
  border: none;
  transition: all 0.2s ease;
}

.btn-gold:hover {
  background: var(--accent-gold-light);
  color: #000000;
  box-shadow: 0 0 20px var(--accent-gold-glow);
}

.btn-outline-gold {
  background: transparent;
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold);
  transition: all 0.2s ease;
}

.btn-outline-gold:hover {
  background: var(--accent-gold);
  color: #000000;
}

/* Semantic Badge Styles */
.badge-success-soft {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-warning-soft {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid var(--warning-border);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-info-soft {
  background: var(--info-bg);
  color: var(--info);
  border: 1px solid var(--info-border);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

/* Text Hierarchy Utilities */
.text-primary-white {
  color: var(--text-primary) !important;
}

.text-secondary-gray {
  color: var(--text-secondary) !important;
}

.text-tertiary-gray {
  color: var(--text-tertiary) !important;
}

.text-muted-gray {
  color: var(--text-muted) !important;
}