.validation-message {
    font-size: 12px;
    margin-top: 5px;
    min-height: 16px;
}
.valid { color: #4CAF50; }
.invalid { color: #ff6b6b; }
.loading { color: #aaa; }

.email-status {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 5px;
}
.status-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
}
.status-icon.available { background-color: #4CAF50; }
.status-icon.taken { background-color: #ff6b6b; }
.status-icon.checking {
    background-color: #ffa500;
    animation: pulse 1s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}