/* ═══════════════════════════════════════════════════════════════════
   Filesystem Browser – My Content
   Modelled after macOS Finder list-view / VS Code explorer
   ═══════════════════════════════════════════════════════════════════ */

/* ── Container ─────────────────────────────────────────────────────── */
.fs {
    max-width: 960px;
    width: 100%;
    margin: 2rem auto;
    border: 1px solid var(--color-border, #3a3a3a);
    overflow: hidden;
    background: var(--color-bg, #1a1a1a);
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Menlo', 'Consolas', monospace;
    font-size: 0.82rem;
    color: var(--color-text, #f5f5f5);
}

/* ── Toolbar / breadcrumb bar ──────────────────────────────────────── */
.fs-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-light, #2a2a2a);
    border-bottom: 1px solid var(--color-border, #3a3a3a);
    gap: 0.75rem;
}

.fs-toolbar__path {
    display: flex;
    align-items: center;
    gap: 0;
    color: var(--color-text-mid, #d8d8d8);
    font-size: 0.8rem;
    min-width: 0;
}

.fs-toolbar__segment {
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    white-space: nowrap;
}

.fs-toolbar__segment--root {
    color: var(--color-accent, #8FCB7E);
}

.fs-toolbar__sep {
    color: var(--color-border, #3a3a3a);
    padding: 0 0.1rem;
}

.fs-toolbar__actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.fs-toolbar__btn {
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-family: inherit;
    text-decoration: none;
    color: var(--color-text, #f5f5f5);
    background: transparent;
    border: 1px solid var(--color-border, #3a3a3a);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.fs-toolbar__btn:hover {
    background: var(--color-bg-primary, #2e1f2e);
    border-color: var(--color-accent, #8FCB7E);
    color: var(--color-accent, #8FCB7E);
}

/* ── Row grid (shared across header, folders, files) ───────────────── */
.fs-row {
    display: grid;
    grid-template-columns: 1fr 140px 90px 140px;
    align-items: center;
    padding: 0 0.75rem;
    min-height: 30px;
    border-bottom: 1px solid color-mix(in srgb, var(--color-border, #3a3a3a) 50%, transparent);
    gap: 0.25rem;
}

.fs-col {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fs-col--name {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    min-width: 0;
}

.fs-col--date,
.fs-col--size,
.fs-col--kind {
    color: var(--color-text-mid, #d8d8d8);
    font-size: 0.78rem;
}

/* ── Column header row ─────────────────────────────────────────────── */
.fs-row--head {
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-mid, #d8d8d8);
    background: var(--color-bg-light, #2a2a2a);
    border-bottom: 1px solid var(--color-border, #3a3a3a);
    min-height: 28px;
    user-select: none;
}

.fs-row--head .fs-col {
    opacity: 0.7;
}

/* ── Folder rows ───────────────────────────────────────────────────── */
.fs-folder {
    margin: 0;
}

.fs-folder > summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
}

.fs-folder > summary::-webkit-details-marker {
    display: none;
}

.fs-row--folder {
    background: var(--color-bg-light, #2a2a2a);
    font-weight: 600;
}

.fs-row--folder:hover {
    background: color-mix(in srgb, var(--color-accent, #8FCB7E) 8%, var(--color-bg-light, #2a2a2a));
}

.fs-row--folder .fs-col--name {
    color: var(--color-accent, #8FCB7E);
}

/* ── Chevron (▶ / ▼) ──────────────────────────────────────────────── */
.fs-chevron {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid var(--color-text-mid, #d8d8d8);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    transition: transform 0.15s ease;
    flex-shrink: 0;
    margin-right: 0.15rem;
}

details[open] > summary .fs-chevron {
    transform: rotate(90deg);
}

/* ── File children (indented) ──────────────────────────────────────── */
.fs-folder__children {
    /* No extra indent on the grid itself; icons provide visual nesting */
}

/* ── File rows ─────────────────────────────────────────────────────── */
.fs-row--file:hover {
    background: color-mix(in srgb, var(--color-primary, #5F7355) 12%, var(--color-bg, #1a1a1a));
}

.fs-row--file:active {
    background: color-mix(in srgb, var(--color-primary, #5F7355) 20%, var(--color-bg, #1a1a1a));
}

/* ── Empty row ─────────────────────────────────────────────────────── */
.fs-row--empty {
    min-height: 28px;
    padding-left: 1.75rem;
}

.fs-empty-msg {
    font-style: italic;
    color: var(--color-text-mid, #d8d8d8);
    opacity: 0.5;
}

/* ── Sub-folders (reading lists as expandable directories) ─────────── */
.fs-subfolder {
    margin: 0;
}

.fs-subfolder > summary {
    list-style: none;
    cursor: pointer;
    user-select: none;
}

.fs-subfolder > summary::-webkit-details-marker {
    display: none;
}

.fs-row--subfolder {
    padding-left: 1.75rem;
    font-weight: 600;
    background: color-mix(in srgb, var(--color-bg-light, #2a2a2a) 70%, var(--color-bg, #1a1a1a));
}

.fs-row--subfolder:hover {
    background: color-mix(in srgb, var(--color-accent, #8FCB7E) 6%, var(--color-bg-light, #2a2a2a));
}

.fs-row--subfolder .fs-col--name {
    color: var(--color-accent-400, #A5D692);
}

.fs-subfolder__children {
    position: relative;
}

/* Tree-line on the left edge of nested children */
.fs-subfolder__children::before {
    content: '';
    position: absolute;
    left: 2.35rem;
    top: 0;
    bottom: 0;
    width: 1px;
    background: color-mix(in srgb, var(--color-border, #3a3a3a) 60%, transparent);
    pointer-events: none;
}

.fs-row--nested-file:hover {
    background: color-mix(in srgb, var(--color-primary, #5F7355) 12%, var(--color-bg, #1a1a1a));
}

.fs-row--nested-file:active {
    background: color-mix(in srgb, var(--color-primary, #5F7355) 20%, var(--color-bg, #1a1a1a));
}

.fs-row--nested-empty {
    min-height: 28px;
    padding-left: 3rem;
}

/* ── File links ────────────────────────────────────────────────────── */
.fs-link {
    color: var(--color-text, #f5f5f5);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

a.fs-link:hover {
    text-decoration: underline;
    color: var(--color-accent, #8FCB7E);
}

/* ── Inline action buttons (↗ ✎ ⧉) ────────────────────────────────── */
.fs-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.4em;
    height: 1.4em;
    font-size: 0.85rem;
    color: var(--color-text-mid, #d8d8d8);
    background: none;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    padding: 0;
    margin-left: 0.2rem;
    transition: background 0.12s, color 0.12s;
    vertical-align: middle;
    font-family: inherit;
}

.fs-action:hover {
    background: var(--color-bg-primary, #2e1f2e);
    color: var(--color-accent, #8FCB7E);
}

/* ── Icons (pure CSS) ──────────────────────────────────────────────── */
.fs-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.15em;
    height: 1.15em;
    flex-shrink: 0;
    font-size: 1em;
    line-height: 1;
}

/* Folder – yellow */
.fs-icon--folder::before {
    content: '📁';
    font-size: 1.05em;
}

details[open] > summary .fs-icon--folder::before {
    content: '📂';
}

/* Draft – orange pencil square */
.fs-icon--draft::before {
    content: '📝';
    font-size: 0.95em;
}

/* Article – green file */
.fs-icon--article::before {
    content: '📄';
    font-size: 0.95em;
}

/* Reading list – bookmark stack */
.fs-icon--readinglist::before {
    content: '📑';
    font-size: 0.95em;
}

/* Curation set – card index */
.fs-icon--curation::before {
    content: '🗂️';
    font-size: 0.95em;
}

/* Video */
.fs-icon--video::before {
    content: '🎬';
    font-size: 0.95em;
}

/* Image */
.fs-icon--image::before {
    content: '🖼️';
    font-size: 0.95em;
}

/* Empty placeholder */
.fs-icon--empty::before {
    content: '∅';
    font-size: 0.85em;
    opacity: 0.4;
}

/* Missing / unresolved file */
.fs-icon--missing::before {
    content: '❓';
    font-size: 0.85em;
    opacity: 0.6;
}

/* Dimmed link for unresolved articles */
.fs-link--dim {
    opacity: 0.5;
    font-style: italic;
}

/* ── Badges ────────────────────────────────────────────────────────── */
.fs-badge {
    display: inline-block;
    padding: 0.05em 0.4em;
    font-size: 0.68rem;
    font-weight: 600;
    border-radius: 3px;
    margin-left: 0.35rem;
    vertical-align: middle;
    line-height: 1.4;
}

.fs-badge--warn {
    background: #78570033;
    color: #e8bb8d;
    border: 1px solid #78570055;
}

/* ── Status bar ────────────────────────────────────────────────────── */
.fs-statusbar {
    display: flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    font-size: 0.72rem;
    color: var(--color-text-mid, #d8d8d8);
    opacity: 0.7;
    background: var(--color-bg-light, #2a2a2a);
    border-top: 1px solid var(--color-border, #3a3a3a);
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 680px) {
    .fs {
        margin: 1rem 0.5rem;
        font-size: 0.78rem;
    }

    .fs-row {
        grid-template-columns: 1fr 100px;
        min-height: 34px;
    }

    /* Hide date & size columns on small screens */
    .fs-col--date,
    .fs-col--size {
        display: none;
    }

    .fs-col--kind {
        text-align: right;
    }

    .fs-toolbar__path {
        font-size: 0.75rem;
    }

    .fs-row--subfolder {
        padding-left: 1.25rem;
    }

    .fs-row--nested-file,
    .fs-row--nested-empty {
        padding-left: 2rem;
    }

    .fs-subfolder__children::before {
        left: 1.6rem;
    }
}