.login-shell {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 420px;
    background:
        radial-gradient(circle at top right, rgba(226, 180, 71, 0.18), transparent 40%),
        color-mix(in srgb, var(--infradac-card) 96%, var(--infradac-surface));
    border: 1px solid var(--infradac-border);
    border-radius: 26px;
    box-shadow: var(--infradac-shadow);
    padding: 2.25rem 2.25rem 1.5rem;
    text-align: center;
    box-sizing: border-box;
    color: var(--infradac-ink);
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: opacity 360ms ease, transform 360ms ease;
}

body.auth-route-transitioning .login-container,
body.auth-route-transitioning .choose-card,
body.auth-route-transitioning .fido2-challenge-card,
body.auth-route-transitioning .fido2-card,
body.auth-route-transitioning .password-changer-card {
    opacity: 0;
    transform: translateY(10px) scale(0.985);
}

.logo-container {
    margin-bottom: 1.2rem;
}

.login-container h1 {
    margin: 0 0 0.75rem;
    font-size: 1.6rem;
}

.login-copy {
    margin: 0 0 1.25rem;
    color: var(--infradac-muted);
    line-height: 1.5;
}

.login-form {
    text-align: left;
}

.form-group {
    text-align: left;
    margin-bottom: 1rem;
}

.login-form label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    display: block;
}

.form-control {
    border-radius: 16px;
    background-color: color-mix(in srgb, var(--infradac-card) 94%, white);
    color: var(--infradac-ink);
    border: 1px solid color-mix(in srgb, var(--infradac-border) 92%, #ced4da);
    padding: 0.85rem 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    width: 100%;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: color-mix(in srgb, var(--infradac-green) 55%, white);
    box-shadow: 0 0 5px color-mix(in srgb, var(--infradac-green) 30%, transparent);
    outline: none;
}

.auth-checkbox-row {
    display: inline-flex !important;
    align-items: center;
    gap: 10px;
    margin: 0.35rem 0 0.25rem;
    color: var(--infradac-muted);
    font-size: 0.94rem;
    font-weight: 700 !important;
}

.auth-checkbox-row input {
    width: 18px;
    height: 18px;
    accent-color: var(--infradac-green);
}

.gradient-btn {
    background: linear-gradient(to right, var(--infradac-gold) 0%, var(--infradac-green) 50%, var(--infradac-green-dark) 90%);
    border: 3px solid rgba(255, 255, 255, 0.96);
    border-radius: 999px;
    padding: 0.8rem 1.5rem;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    margin-top: 1rem;
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--infradac-green-dark) 22%, transparent);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.gradient-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.login-build-version {
    margin-top: 1.25rem;
    color: var(--infradac-muted);
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.alert.general-error {
    margin-bottom: 1rem;
    text-align: left;
    color: #fff;
    background-color: var(--infradac-danger);
    border-radius: 5px;
    padding: 10px;
}

body.dark-mode .login-container {
    box-shadow: var(--infradac-shadow);
}

body.dark-mode .form-control {
    background-color: color-mix(in srgb, var(--infradac-card) 88%, black);
    border: 1px solid color-mix(in srgb, var(--infradac-border) 90%, #555);
}

@media (max-width: 480px) {
    .login-container {
        width: 90vw;
        max-width: 100%;
        padding: 2rem;
    }

    .form-control,
    .gradient-btn {
        font-size: 1rem;
    }
}