.page-shell {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    gap: clamp(1.25rem, 3vw, 2.75rem);
    width: 100%;
    max-width: 1520px;
    margin-left: auto;
    margin-right: auto;
    padding-top: 2.25rem;
    padding-bottom: 3rem;
    padding-left: 8%;
    padding-right: 8%;
    box-sizing: border-box;
}

@media (max-width: 1200px) and (min-width: 961px) {
    .page-shell {
        padding-left: 4%;
        padding-right: 4%;
    }
}

.sidebar {
    position: sticky;
    top: var(--page-pad);
    align-self: start;
    max-height: calc(100vh - (var(--page-pad) * 2));
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-width: 0;
}

.main-column {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.content-stream {
    display: flex;
    flex-direction: column;
    gap: 2.75rem;
}

.content-group {
    scroll-margin-top: 1.5rem;
}

.group-modules {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
}

.group-modules::before {
    content: "";
    position: absolute;
    left: 10px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--brand), rgba(122, 47, 54, 0.05));
    border-radius: 2px;
}

.module-slot {
    position: relative;
    padding-left: 1.75rem;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.module-slot::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 1.35rem;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--panel-solid);
    border: 3px solid var(--brand);
    box-shadow: 0 0 0 4px var(--brand-soft);
    z-index: 1;
}

.module-slot.is-loaded {
    opacity: 1;
    transform: none;
}

.site-footer {
    margin-top: auto;
    padding: 1rem 1.25rem;
    text-align: center;
    color: var(--ink-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--line);
}

@media (max-width: 960px) {
    .page-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        top: 0;
        max-height: none;
        overflow: visible;
    }

    .group-modules::before,
    .module-slot::before {
        display: none;
    }

    .module-slot {
        padding-left: 0;
    }
}