.page-message-area {
    margin-top: 1rem;
}

.site-banner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 0.75rem;
    align-items: start;

    padding: 0.875rem 1rem;
    border: 1px solid transparent;
    border-left-width: 4px;
    border-radius: 0.75rem;

    font-size: 0.95rem;
    line-height: 1.45;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.site-banner__icon {
    width: 1.75rem;
    height: 1.75rem;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    font-weight: 700;
    font-size: 0.95rem;
    line-height: 1;

    border-radius: 50%;
    border: 2px solid currentColor;

    flex-shrink: 0;
}

.site-banner__body {
    min-width: 0;
}

.site-banner__title {
    font-weight: 600;
    margin: 0;
}

.site-banner__text {
    margin-top: 0.15rem;
    color: inherit;
    opacity: 0.92;
}

.site-banner__close {
    appearance: none;
    border: 0;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 1.15rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.7;
    padding: 0.1rem 0.2rem;
    border-radius: 0.35rem;
}

.site-banner__close:hover {
    opacity: 1;
    background: var(--banner-close-hover-bg);
}

.site-banner__close:focus-visible {
    opacity: 1;
    background: var(--banner-close-hover-bg);
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.site-banner--success {
    background: var(--banner-success-bg);
    border-color: var(--banner-success-border);
    border-left-color: var(--banner-success-accent);
    color: var(--banner-success-text);
}

.site-banner--error {
    background: var(--banner-error-bg);
    border-color: var(--banner-error-border);
    border-left-color: var(--banner-error-accent);
    color: var(--banner-error-text);
}

.site-banner--warning {
    background: var(--banner-warning-bg);
    border-color: var(--banner-warning-border);
    border-left-color: var(--banner-warning-accent);
    color: var(--banner-warning-text);
}

.site-banner--info {
    background: var(--banner-info-bg);
    border-color: var(--banner-info-border);
    border-left-color: var(--banner-info-accent);
    color: var(--banner-info-text);
}