body { 
    background-color: #f0f4f8;
    background-image: 
        linear-gradient(rgba(200, 200, 200, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(200, 200, 200, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    min-height: 100vh;
    color: #0f172a;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

body.dark {
    background-color: #0f172a;
    color: #f8fafc;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
}

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.02),
        0 2px 4px -1px rgba(0, 0, 0, 0.02),
        inset 0 0 0 1px rgba(255, 255, 255, 0.5);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.dark .glass-card {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.2),
        0 2px 4px -1px rgba(0, 0, 0, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.scan-line {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: skewX(-20deg);
    animation: scan 6s infinite;
    pointer-events: none;
}

.dark .scan-line {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}

@keyframes scan {
    0%, 50% { left: -100%; }
    100% { left: 200%; }
}

.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }