/* Base styles for all pages */
* { box-sizing: border-box; }
.loader {
    border: 4px solid rgba(255,255,255,0.1);
    border-top: 4px solid #4fc3f7;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 10px auto;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
a { color: #4fc3f7; text-decoration: none; }
a:hover { text-decoration: underline; }