body {
    background: linear-gradient(to right, #00c6ff, #0072ff);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.form-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
}

.error-message {
    color: red;
    font-size: 0.85em;
    margin-top: 5px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.error-message.show {
    opacity: 1;
}

.validation-icon {
    position: absolute;
    right: 10px;
    top: 38px;
    font-size: 1.2em;
}

.validation-icon.valid {
    color: green;
    content: "✔";
}

.validation-icon.invalid {
    color: red;
    content: "✖";
}

.toggle-password {
    cursor: pointer;
}

input:focus {
    box-shadow: 0px 0px 8px rgba(0, 114, 255, 0.4);
}