:root {
    --sd-ink: #182433;
    --sd-muted: #667085;
    --sd-line: #d9e2ec;
    --sd-primary: #155e75;
    --sd-primary-dark: #0f4658;
}

body.auth-page {
    min-height: 100vh;
    margin: 0;
    color: var(--sd-ink);
    background: #eef4f7;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.auth-shell {
    display: grid;
    min-height: 100vh;
    place-items: center;
    padding: 24px;
}

.auth-card {
    width: min(100%, 420px);
    padding: 28px;
    border: 1px solid var(--sd-line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 44px rgba(15, 35, 50, .13);
}

.auth-brand {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 24px;
}

.auth-brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 8px;
    background: #e3b65d;
    color: #17202a;
    font-weight: 800;
}

.auth-brand h1 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 800;
}

.auth-brand p {
    margin: 2px 0 0;
    color: var(--sd-muted);
}

.auth-form .form-label {
    font-weight: 700;
    font-size: .86rem;
}

.auth-form .form-control {
    border-color: var(--sd-line);
    border-radius: 6px;
}

.btn-primary {
    --bs-btn-bg: var(--sd-primary);
    --bs-btn-border-color: var(--sd-primary);
    --bs-btn-hover-bg: var(--sd-primary-dark);
    --bs-btn-hover-border-color: var(--sd-primary-dark);
}