#page-loader {
    position: fixed;
    inset: 0;
    background: #fff;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

body.dark-mode #page-loader {
    background: #1a1a1a;
}

.loader {
    width: 80px;
    height: 80px;
    border: 5px solid #e5e7eb;
    border-top-color: #111;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

body.dark-mode .loader {
    border-color: #374151;
    border-top-color: #f3f4f6;
}

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