.auth-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at top right, rgba(5, 98, 131, 0.16), transparent 30%),
        radial-gradient(circle at bottom left, rgba(10, 123, 163, 0.10), transparent 35%),
        linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding: var(--space-6);
    font-family: var(--font-sans);
}

.auth-shell {
    width: min(440px, 100%);
}

.auth-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-8);
}

.auth-brand {
    display: flex;
    gap: var(--space-4);
    align-items: center;
    margin-bottom: var(--space-6);
}

.auth-brand .brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--color-primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.auth-brand h1 {
    font-size: 1.35rem;
    margin-bottom: 0.25rem;
    color: var(--color-text);
}

.auth-brand p {
    color: var(--color-muted);
    font-size: 0.9rem;
}

.auth-form .btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.auth-form .btn-primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.auth-footnote {
    margin-top: var(--space-5);
    font-size: 0.8rem;
    text-align: center;
}