html,
body {
    height: 100%;
    margin: 0;
}

body {
    width: 100%;
    padding: 0;
    display: flex;
    flex-direction: column;
    background: var(--color-background);
    color: var(--color-foreground);
}

[hidden] {
    display: none !important;
}

/* ---- Status bar ---------------------------------------------------- */
.statusbar {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 3);
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-card);
    flex: 0 0 auto;
}

.statusbar .brand {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-right: calc(var(--spacing) * 2);
    white-space: nowrap;
}

.statusbar .working {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    flex: 1 1 auto;
    min-width: 0;
}

.statusbar .working .label {
    color: var(--color-muted-foreground);
    font-size: 0.8125rem;
    white-space: nowrap;
}

.statusbar .working #wf-badge {
    min-width: 0;
    flex-shrink: 1;
}

.statusbar .working .filename {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.statusbar .actions {
    display: flex;
    gap: calc(var(--spacing) * 2);
    flex: 0 0 auto;
}

/* ---- Layout -------------------------------------------------------- */
.layout {
    display: flex;
    flex: 1 1 auto;
    min-height: 0;
}

.sidebar {
    flex: 0 0 320px;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 4);
    padding: calc(var(--spacing) * 4);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    background: var(--color-background);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 2);
}

.filter-group > .heading {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-muted-foreground);
    font-weight: 600;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing) * 1.5);
}

.tag-cloud .badge {
    cursor: pointer;
    user-select: none;
}

.tag-cloud .badge[data-active="true"] {
    outline: 2px solid var(--color-ring);
    outline-offset: 1px;
}

/* ---- Sidebar dropzone ---------------------------------------------- */
.sidebar-dropzone {
    position: relative;
}

.sidebar-dropzone .dropzone {
    padding: calc(var(--spacing) * 3) calc(var(--spacing) * 2);
    text-align: center;
}

.sidebar-dropzone .dropzone p {
    font-size: 0.8125rem;
    margin: 0;
}

.sidebar-dropzone .no-file-note {
    font-size: 0.75rem;
    color: var(--color-muted-foreground);
    text-align: center;
    margin-top: calc(var(--spacing) * 1);
}

/* ---- File history list --------------------------------------------- */
.file-history {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 1);
}

.file-history:empty {
    display: none;
}

.file-history-item {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 2);
    border-radius: var(--radius);
    font-size: 0.8125rem;
}

.file-history-item .file-history-num {
    flex: 0 0 auto;
    color: var(--color-muted-foreground);
    font-variant-numeric: tabular-nums;
    min-width: 1.25em;
    text-align: right;
}

.file-history-item.active .file-history-name {
    color: var(--color-foreground);
}

.file-history-item.inactive {
    color: var(--color-muted-foreground);
}

.file-history-item .file-history-name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1 1 auto;
    font-weight: 500;
}

.file-history-item .badge {
    flex: 0 0 auto;
}

.file-history-item .button {
    flex: 0 0 auto;
}

.file-history-item .button .lucide-icon {
    width: 14px;
    height: 14px;
}

/* ---- Tool list ----------------------------------------------------- */
.tool-list {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 2);
}

.tool-card {
    display: flex;
    gap: calc(var(--spacing) * 3);
    padding: calc(var(--spacing) * 3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-card);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.tool-card:hover {
    border-color: var(--color-ring);
}

.tool-card[data-active="true"] {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}



.tool-card[data-enabled="false"] {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

.tool-card .icon {
    flex: 0 0 auto;
    width: calc(var(--spacing) * 9);
    height: calc(var(--spacing) * 9);
    border-radius: var(--radius-sm);
    display: grid;
    place-items: center;
    background: var(--color-muted);
    color: var(--color-foreground);
}

.tool-card .icon .lucide-icon {
    width: 20px;
    height: 20px;
}

.tool-card .body {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 1);
}

.tool-card .body .title {
    font-weight: 600;
    line-height: 1.2;
}

.tool-card .body .desc {
    font-size: 0.8125rem;
    color: var(--color-muted-foreground);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.tool-card .meta {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing) * 1);
    margin-top: calc(var(--spacing) * 1);
}

.empty {
    padding: calc(var(--spacing) * 6) calc(var(--spacing) * 2);
    text-align: center;
    color: var(--color-muted-foreground);
    font-size: 0.875rem;
}

/* ---- Viewer -------------------------------------------------------- */
.viewer {
    flex: 1 1 auto;
    display: flex;
    min-width: 0;
    position: relative;
}

.viewer iframe {
    flex: 1 1 auto;
    width: 100%;
    height: 100%;
    border: 0;
    background: var(--color-background);
}

.viewer .placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    text-align: center;
    color: var(--color-muted-foreground);
    padding: calc(var(--spacing) * 8);
    pointer-events: none;
}

.viewer .placeholder h2 {
    margin: 0 0 calc(var(--spacing) * 2);
}