body {
    background-color: #f8fafc;
    overflow: hidden;
}

/* Custom Scrollbar - Elegant & Slim */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Premium Dark Cinematic Sidebar */
.glass-sidebar {
    background: linear-gradient(180deg, #020617 0%, #0f172a 70%, #1e293b 100%);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.2);
    border-right: 1px solid rgba(255, 255, 255, 0.03);
}

/* Menu Item Animations */
.nav-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}
.nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.15) 0%, rgba(255,255,255,0) 100%);
    border-left-color: #60a5fa;
    color: #ffffff;
    font-weight: 600;
}

/* Glassmorphism Hero Card */
.hero-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    box-shadow: 0 20px 40px -15px rgba(30, 58, 138, 0.3);
}

/* Premium Card Hover Effect */
.premium-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.premium-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
    border-color: #e2e8f0;
}