:root {
    /* Primary Colors - Deep Institutional Blue */
    --primary-color: #0F172A;
    --primary-light: #1E293B;
    --primary-dark: #020617;
    
    /* Secondary/Accent - Gold/Amber for Excellence */
    --accent-color: #EAB308;
    --accent-hover: #CA8A04;
    
    /* Neutral Palette */
    --bg-light: #F8FAFC;
    --bg-dark: #000000;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --text-on-dark: #F8FAFC;
    
    /* Glassmorphism & UI Elements */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-light);
    margin: 0;
    line-height: 1.6;
}

/* Light Mode Styles */
.light-mode {
    background-color: var(--bg-light);
    color: var(--text-main);
}

/* Dark Mode - Simplified (B/W as requested) */
.dark-mode {
    background-color: var(--bg-dark);
    color: white;
}

.dark-mode .card, 
.dark-mode .navbar, 
.dark-mode .footer {
    background-color: #111 !important;
    border-color: #333 !important;
}

.dark-mode .text-muted {
    color: #999 !important;
}

/* Premium Buttons */
.btn-premium {
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border: none;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.btn-premium:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(15, 23, 42, 0.3);
    color: white;
}

.btn-accent {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border: none;
    transition: var(--transition);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* Glassmorphism Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
}