/* Roadmap Page
   All colors use theme variables. No hardcoded values.
   --roadmap-radius controls border-radius globally for this page. */

.roadmap-page {
    --roadmap-radius: var(--radius-sm);

    max-width: 56rem;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* Header */

.roadmap-header {
    margin-block-end: 1.5rem;
}

.roadmap-header h1 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin: 0 0 0.375rem;
    color: var(--text-primary);
}

.roadmap-description {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
    margin: 0;
}

/* Filters */

.roadmap-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-block-end: 2rem;
}

.roadmap-filter-btn {
    background: transparent;
    border: 1px solid var(--text-tertiary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding: 0.1875rem 0.5rem;
    border-radius: var(--roadmap-radius);
    cursor: pointer;
    font-family: inherit;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.roadmap-filter-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.roadmap-filter-btn.active {
    color: var(--text-primary);
    border-color: var(--text-primary);
    background: var(--bg-secondary);
}

/* Timeline */

.roadmap-timeline {
    display: flex;
    flex-direction: column;
}

/* Milestone: version on left, items on right */

.roadmap-milestone {
    display: grid;
    grid-template-columns: 6rem 1fr;
    gap: 0 1.5rem;
    padding: 1.25rem 0;
    border-block-start: 1px solid var(--border-primary);
}

.roadmap-milestone:first-child {
    border-block-start: none;
    padding-block-start: 0;
}

/* Left: version + status */

.milestone-left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-block-start: 0.125rem;
    position: sticky;
    top: 1rem;
    align-self: start;
}

.milestone-version {
    font-size: var(--font-size-md-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    font-family: var(--font-mono);
    line-height: 1.3;
}

.milestone-status {
    font-size: var(--font-size-2xs);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: var(--font-weight-medium);
}

.milestone-status.status-in_progress {
    color: var(--text-primary);
}

.milestone-status.status-planned {
    color: var(--text-secondary);
}

.milestone-status.status-shipped {
    color: var(--text-secondary);
}

/* Right: items */

.milestone-right {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Item card */

.roadmap-item {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
    padding: 0.625rem 0.75rem;
    border: 1px solid var(--text-tertiary);
    border-radius: var(--roadmap-radius);
    background: var(--bg-secondary);
    transition: border-color var(--transition-fast);
}

.roadmap-item:hover {
    border-color: var(--text-secondary);
}

/* Item row: flex row with space-between */

.roadmap-item-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
}

/* Top row left: title + description */

.roadmap-item-text {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    line-height: 1.5;
    min-width: 0;
}

.roadmap-item-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.roadmap-item-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

/* Top row right: shipped date */

.roadmap-date {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
}

/* Bottom row left: tags */

.roadmap-item-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
}

.roadmap-tag {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    background: var(--bg-primary);
    border: 1px solid var(--text-tertiary);
    padding: 0.125rem 0.4375rem;
    border-radius: var(--roadmap-radius);
}

/* Bottom row right: changelog link */

.roadmap-changelog-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    background: var(--bg-primary);
    border: 1px solid var(--text-tertiary);
    padding: 0.125rem 0.4375rem;
    border-radius: var(--roadmap-radius);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.roadmap-changelog-link:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.roadmap-changelog-link svg {
    flex-shrink: 0;
}

/* Responsive */

@media (max-width: 48rem) {
    .roadmap-milestone {
        grid-template-columns: 1fr;
        gap: 0.5rem 0;
    }

    .milestone-left {
        flex-direction: row;
        align-items: baseline;
        gap: 0.5rem;
        position: static;
    }

    .roadmap-page {
        padding: 1.5rem 1rem 3rem;
    }

    .roadmap-item-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .roadmap-item-right {
        flex-direction: row;
        align-items: center;
    }
}