/* Autoría: Miguel Goñi Moscoso del Prado */
body.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, var(--color-brand-muted), transparent 34%),
        radial-gradient(circle at bottom right, var(--color-info-subtle), transparent 30%),
        var(--color-bg-canvas);
    color: var(--color-text-primary);
}

.auth-card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.auth-brand {
    text-align: center;
    padding: var(--space-8) 0 var(--space-5);
}

.auth-logo-badge {
    width: 88px;
    height: 88px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--prim-neutral-0);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
}

.auth-logo-badge img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.auth-brand-title {
    margin: 0 0 var(--space-2);
    color: var(--color-brand);
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-semibold);
}

.auth-page .text-muted,
.auth-page small,
.auth-page .auth-muted,
.auth-page .form-check-label,
.auth-page .divider span,
.auth-page .password-toggle {
    color: var(--color-text-secondary) !important;
}

.auth-page .form-control {
    background-color: var(--color-bg-input, var(--color-bg-surface));
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

.auth-page .form-control:focus {
    background-color: var(--color-bg-input, var(--color-bg-surface));
    border-color: var(--color-border-focus);
    color: var(--color-text-primary);
    box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.auth-page .form-check-input {
    background-color: var(--color-bg-surface);
    border-color: var(--color-border-strong);
}

.auth-page .form-check-input:checked {
    background-color: var(--color-brand);
    border-color: var(--color-brand);
}

.auth-page .password-toggle:hover,
.auth-page .text-primary:hover {
    color: var(--color-text-primary) !important;
}

.auth-page .btn:focus-visible,
.auth-page a:focus-visible,
.auth-page .form-control:focus-visible,
.auth-page .form-check-input:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

[data-theme="dark"] .auth-logo-badge {
    border-color: var(--color-border-strong);
    box-shadow:
        0 18px 40px rgba(0, 0, 0, 0.34),
        0 0 0 1px rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] body.auth-page {
    background:
        radial-gradient(circle at top left, rgba(0, 207, 232, 0.11), transparent 34%),
        radial-gradient(circle at bottom right, rgba(3, 152, 172, 0.14), transparent 30%),
        var(--color-bg-canvas);
}

@media (prefers-reduced-motion: reduce) {
    .auth-card,
    .password-strength,
    .password-toggle,
    .btn {
        transition: none !important;
    }
}

[data-design-system="klockner"] body.auth-page {
    background:
        linear-gradient(180deg, var(--color-bg-surface) 0 78px, var(--color-bg-canvas) 78px 100%);
}

[data-design-system="klockner"] body.auth-page::before {
    content: "";
    position: fixed;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-brand), var(--color-accent-hot), var(--klockner-orange));
    pointer-events: none;
    z-index: 0;
}

[data-design-system="klockner"] .auth-card {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-color: var(--color-border);
    background: var(--color-bg-surface);
}

[data-design-system="klockner"] .auth-brand-title {
    color: var(--color-heading);
}

[data-design-system="klockner"] .auth-subtitle {
    color: var(--color-text-secondary);
}

[data-design-system="klockner"] .auth-page .form-control {
    background-color: var(--color-bg-surface);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

[data-design-system="klockner"] .auth-page .btn-primary {
    background: var(--color-brand);
    border-color: var(--color-brand);
    color: var(--color-text-inverse);
}

[data-design-system="klockner"] .auth-page .btn-primary:hover {
    background: var(--color-brand-hover);
    border-color: var(--color-brand-hover);
}

@media (max-width: 768px) {
    [data-design-system="klockner"] body.auth-page {
        background: var(--color-bg-canvas);
    }
}