body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
}

.app-shell {
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
}

.app-main {
    flex: 1 0 auto;
    display: flex;
    flex-direction: column;
    padding: 16px;
}

.app-footer {
    flex-shrink: 0;
    border-top: 1px solid var(--color-border);
    background: #f8fafc;
    color: var(--color-text-muted);
    font-size: 12px;
    padding: 10px 14px;
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.page-header__titles {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.page-header__title {
    margin: 0;
    font-size: 24px;
}

.page-header__subtitle {
    color: var(--color-text-muted);
}

.page-header__actions {
    display: flex;
    gap: 8px;
    align-items: center;
}