#login-card {
    max-width: 50em;
    margin: 5em auto 0 auto;
    padding: 2em;
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    gap: 1em;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.register #card-title-login,
.register #card-text-login,
.register #form-login {
    display: none;
}

.register #card-title-register,
.register #card-text-register,
.register #form-register {
    display: inherit;
}

#card-title-register,
#card-text-register,
#form-register {
    display: none;
}

.slider {
    width: 100%;
    background-color: var(--color-bg);
    padding: 5px;
    border-radius: var(--radius-lg);
    position: relative;
}

.slider-text {
    display: flex;
}
.slider button {
    width: 100%;
    border: none;
    padding: 0.5em 0;
    color: inherit;
    font: inherit;
    font-weight: var(--font-semibold);
    background: none;
    z-index: 10;
}
.slider button:hover {
    cursor: pointer;
}

.slider-background-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    padding: 5px;
}
.slider-background {
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    width: 50%;
    height: 100%;
    transition: margin-left 0.4s ease-in-out;
}
.register .slider-background {
    margin-left: 50%;
}

form input[type="submit"] {
    margin-top: 1em;
}

.error-message {
    display: flex;
    gap: 1em;
    align-items: center;
    padding: 1em;
    background-color: var(--color-error-bg);
    color: var(--color-error-text);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-error-border);
    display: none;
}
.error-message.show {
    display: inherit;
}
.error-message #error-message {
    opacity: 0.9;
}