.login {
    min-height: 100vh;
    min-height: 100dvh;
    display: grid;
    place-items: center;
    padding: var(--space-6);
}

.login-card {
    width: 100%;
    max-width: 320px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.login-mark {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
    letter-spacing: -0.015em;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.field-input[aria-invalid='true'] {
    border-color: var(--red);
}

.field-input[aria-invalid='true']:focus {
    box-shadow: var(--focus-glow-bad);
}

.button-primary {
    height: var(--field-height);
    padding: 0 var(--space-6);
    background: var(--accent);
    color: var(--on-accent);
    border-radius: var(--radius);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    transition: background var(--duration) ease;
}

.button-primary:hover {
    background: var(--accent-strong);
}

.button-primary[disabled] {
    opacity: 0.55;
    cursor: default;
}

/* Sits with the fields it is about, above the button, and takes no room until
   there is something to say. */
.login-problem {
    font-size: var(--text-sm);
    color: var(--red);
}

.login-problem:empty {
    display: none;
}