body {
    background-color: #f8fafc;
    color: #1a1a1a;
}
.glass-nav {
    background: rgba(15, 23, 42);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}
.text-shadow {
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #2563eb;
    border-radius: 4px;
}
.loader {
    border-top-color: #2563eb;
    animation: spinner 1.5s linear infinite;
}
@keyframes spinner {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    header {
        height: 100svh;
        min-height: 100dvh;
        padding-top: 60px; /* Pushes content below sticky nav */
    }
    
    header .relative.z-10 {
        padding-top: 20px;
    }
    
    header h1 {
        font-size: 2.25rem;
    }
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    transition: all 0.3s ease;
}

.solid-nav {
    background: rgba(15, 23, 42);
    box-shadow: none;
}