/* Loader styles */
.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loader-content {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

/* Popup styles */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.popup-content {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    min-width: 300px;
    max-width: 500px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.popup-content.success {
    border-top: 4px solid #2ecc71;
}

.popup-content.notice {
    border-top: 4px solid #f1c40f;
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.popup-header h3 {
    margin: 0;
    color: #2c3e50;
}

.close-popup {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #7f8c8d;
    padding: 0;
    line-height: 1;
}

.close-popup:hover {
    color: #2c3e50;
}

.popup-body {
    color: #34495e;
    line-height: 1.5;
}