.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.3s;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #007bff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.loader-text {
    margin-top: 15px;
    color: #333;
    font-family: 'Roboto', sans-serif;
    font-size: 1.1rem;
}

.refresh-timer {
    margin-top: 10px;
    color: #666;
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.page-loader.show .refresh-timer {
    opacity: 1;
}

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

.page-loader.fade-out {
    opacity: 0;
    pointer-events: none;
}

.page-loader.show {
    display: flex;
}