body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc; /* Slate-50 for a cleaner look */
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 20px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }

/* Custom Scrollbar for modern feel */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #c7c7cc;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #a1a1aa;
}

#main-content {
    opacity: 0; /* Start hidden for animation */
}

#main-content.loaded {
    opacity: 1;
}

/* Modern Spinner */
.spinner {
    border: 3px solid rgba(226, 232, 240, 0.3); /* Slate-200 with opacity */
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border-left-color: #4f46e5; /* Indigo-600 */
    animation: spin 1s cubic-bezier(0.55, 0.055, 0.675, 0.19) infinite;
    margin: 0 auto 24px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}