/* Main container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border-subtle);
}

.header-title {
    flex: 1;
}

.header-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Tags section */
.tags-section {
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--color-border-subtle);
}

/* 70-30 split layout */
.main-layout {
    display: grid;
    grid-template-columns: var(--main-width) var(--sidebar-width);
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
}

/* Posts column (70%) */
.posts-column {
    min-width: 0;
}

/* Sidebar column (30%) */
.sidebar-column {
    position: sticky;
    top: var(--spacing-xl);
    align-self: start;
    padding-left: var(--spacing-xl);
    border-left: 1px solid var(--color-border-subtle);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border-subtle);
    margin-top: var(--spacing-2xl);
    text-align: center;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
    }

    .sidebar-column {
        position: static;
        padding-left: 0;
        border-left: none;
        border-top: 1px solid var(--color-border-subtle);
        padding-top: var(--spacing-xl);
        order: -1;
    }

    .year-selector {
        flex-direction: row;
        flex-wrap: wrap;
        overflow-x: auto;
    }

    .header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}