:root {
    --hud-bg: #0b0f14;
    --hud-panel: #121821;
    --hud-surface: #0f141b;
    --hud-surface-hover: #171f2a;
    --hud-surface-active: #1a2430;
    --hud-border: rgba(255, 255, 255, 0.06);
    --hud-border-strong: rgba(255, 255, 255, 0.14);
    --hud-text: #e6edf3;
    --hud-text-strong: #f4f7fb;
    --hud-text-dim: #8d9aaa;
    --hud-text-muted: #6f7b89;
    --hud-accent: #4ade80;
    --hud-accent-text: #052e16;
    --hud-danger: #f07f8f;
    --hud-danger-soft: rgba(240, 127, 143, 0.12);
    --hud-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    --hud-radius: 10px;
    --hud-font-ui: "Segoe UI", "Trebuchet MS", sans-serif;
    --hud-font-mono: "Consolas", "Lucida Console", monospace;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-section: 24px;
    --control-height: 36px;
    --control-radius: 8px;
    --button-min-width: 120px;
    --button-wide-min-width: 140px;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
}

body.hud-shell {
    gap: var(--space-lg);
    background: var(--hud-bg) !important;
    color: var(--hud-text);
    font-family: var(--hud-font-ui);
    font-size: 16px;
    letter-spacing: 0;
}

.hud-panel,
.hud-header,
.hud-footer,
.hud-modal {
    position: relative;
    overflow: hidden;
    background: var(--hud-panel) !important;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--hud-radius) !important;
    box-shadow: var(--hud-shadow) !important;
}

.hud-panel > *,
.hud-header > *,
.hud-footer > *,
.hud-modal > * {
    position: relative;
}

.hud-main {
    gap: var(--space-lg);
}

.hud-header {
    min-height: 96px;
    align-items: center !important;
    padding: var(--space-lg) !important;
}

.hud-footer {
    padding: var(--space-lg) !important;
}

.hud-panel-header,
.hud-list-header,
.hud-modal-actions {
    background: var(--hud-surface) !important;
    border-color: var(--hud-border) !important;
    box-shadow: none !important;
}

.hud-panel-header {
    min-height: 56px;
    gap: var(--space-md);
    padding: var(--space-lg) !important;
}

.hud-files-panel .hud-panel-header {
    margin-bottom: var(--space-md);
}

.hud-queue-header {
    gap: var(--space-lg);
}

.hud-queue-title-group,
.hud-queue-actions {
    display: flex;
    align-items: center;
}

.hud-queue-title-group {
    gap: var(--space-md);
    min-width: 0;
}

.hud-queue-actions {
    gap: var(--space-sm);
    margin-left: auto;
}

.hud-queue-header #queue-genre-filter {
    width: 112px;
    height: var(--control-height) !important;
    min-height: 0 !important;
    padding: 0 28px 0 10px !important;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--control-radius) !important;
    background-color: var(--hud-surface) !important;
    color: var(--hud-text) !important;
    font-family: var(--hud-font-ui);
    font-size: 13px;
    line-height: normal;
}

.hud-queue-header #queue-genre-filter:hover,
.hud-queue-header #queue-genre-filter:focus-visible {
    border-color: var(--hud-border-strong) !important;
}

.hud-queue-header #btn-clear {
    color: var(--hud-text-dim) !important;
}

.hud-queue-header #btn-add-folder {
    border-color: rgba(74, 222, 128, 0.32) !important;
    background: rgba(74, 222, 128, 0.08) !important;
    color: var(--hud-accent) !important;
}

.hud-queue-header #btn-add-folder:hover {
    background: rgba(74, 222, 128, 0.14) !important;
    border-color: rgba(74, 222, 128, 0.48) !important;
}

.hud-catalog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    border-top: 1px solid var(--hud-border);
}

.hud-catalog-actions .hud-button {
    min-height: 32px;
    padding: 6px 10px;
    color: var(--hud-text-dim);
    font-size: 12px;
}

.hud-catalog-actions #catalog-export-scope,
.hud-catalog-actions #catalog-export-format {
    min-height: 32px;
    padding: 0 28px 0 10px;
    border: 1px solid var(--hud-border);
    border-radius: var(--control-radius);
    background-color: var(--hud-surface);
    color: var(--hud-text-dim);
    font-family: var(--hud-font-ui);
    font-size: 12px;
}

.hud-catalog-actions .hud-button:hover:not(:disabled) {
    color: var(--hud-accent);
    border-color: rgba(74, 222, 128, 0.42);
}

.hud-viewer-panel .hud-panel-header {
    margin-bottom: var(--space-lg);
}

.hud-viewer-tabs {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-lg) !important;
}

.hud-viewer-tab {
    position: relative;
    padding: 0 0 8px;
    border: 0;
    background: transparent;
    color: var(--hud-text-dim);
    font: inherit;
    cursor: pointer;
}

.hud-viewer-tab::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 2px;
    background: transparent;
    content: '';
}

.hud-viewer-tab:hover,
.hud-viewer-tab.is-active {
    color: var(--hud-text);
}

.hud-viewer-tab.is-active::after {
    background: var(--hud-accent);
}

.hud-modal-actions {
    gap: var(--space-md);
    padding: var(--space-lg) !important;
}

.hud-brand {
    position: absolute;
    left: 50%;
    top: 50%;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    min-width: 0;
    padding: 0 !important;
    transform: translate(-50%, -50%);
    text-align: center;
}

.hud-brand-kicker {
    color: var(--hud-text-dim) !important;
    font-family: var(--hud-font-ui);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hud-title {
    color: var(--hud-text-strong) !important;
    font-family: var(--hud-font-ui);
    font-size: 22px !important;
    letter-spacing: normal;
    line-height: 1.2;
    text-transform: none;
    text-shadow: none !important;
}

.hud-brand .hud-title {
    display: inline-flex;
    align-items: baseline;
    gap: 0.2em;
    margin: 0;
    font-size: 33px !important;
    line-height: 1.2;
    letter-spacing: normal;
    text-transform: none;
}

.hud-title-book {
    font-family: "Libre Baskerville", Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.hud-title-product {
    font-family: "Inter", system-ui, sans-serif;
    font-weight: 400;
    letter-spacing: normal;
}

.hud-title-accent {
    color: var(--hud-accent);
    font-weight: 600;
}

.hud-toolbar {
    position: static !important;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-md) !important;
    margin-left: auto;
    padding: 0 !important;
}

.hud-panel-title,
.hud-label {
    color: #aab6c5 !important;
    font-family: var(--hud-font-ui);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hud-button,
button.selection-action-button,
.saved-item .btn-delete-saved,
.hud-close-button {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--control-height) !important;
    min-height: 0 !important;
    min-width: var(--button-min-width);
    flex: 0 0 auto;
    padding: 0 14px !important;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--control-radius) !important;
    background: var(--hud-surface) !important;
    color: var(--hud-text) !important;
    font-family: var(--hud-font-ui);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0;
    line-height: normal;
    white-space: nowrap;
    text-shadow: none !important;
    box-shadow: none !important;
    transition:
        background-color 0.16s ease,
        border-color 0.16s ease,
        color 0.16s ease;
}

.hud-button-small {
    height: var(--control-height) !important;
    min-height: 0 !important;
    padding: 0 14px !important;
    font-size: 13px;
}

.hud-button-icon {
    width: var(--control-height);
    min-width: var(--control-height);
    flex-basis: var(--control-height);
    height: var(--control-height) !important;
    min-height: 0 !important;
    padding: 0 !important;
}

.hud-toolbar .hud-button {
    flex: 0 0 auto;
}

#btn-how-it-works {
    position: absolute;
    left: var(--space-lg);
    top: 50%;
    transform: translateY(-50%);
}

.hud-button:hover:not(:disabled),
button.selection-action-button:hover,
.saved-item .btn-delete-saved:hover,
.hud-close-button:hover {
    background: rgba(255, 255, 255, 0.04) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: var(--hud-text-strong) !important;
}

.hud-button:active:not(:disabled),
button.selection-action-button:active,
.saved-item .btn-delete-saved:active,
.hud-close-button:active {
    background: #0d1218 !important;
}

.hud-button-accent,
.hud-button-utility,
.hud-command-tab.is-active {
    background: transparent !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: var(--hud-text) !important;
}

.hud-button-muted,
.hud-button-secondary,
.hud-command-tab {
    background: transparent !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: var(--hud-text) !important;
}

.hud-button-danger,
.saved-item .btn-delete-saved {
    background: transparent !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    color: var(--hud-text) !important;
}

#btn-saved,
#btn-download {
    background: var(--hud-accent) !important;
    border: none !important;
    color: var(--hud-accent-text) !important;
}

#btn-saved:hover:not(:disabled),
#btn-download:hover:not(:disabled) {
    background: var(--hud-accent) !important;
    color: var(--hud-accent-text) !important;
    filter: brightness(1.06);
}

.hud-command-tab {
    height: var(--control-height) !important;
    min-height: 0 !important;
    padding: 0 14px !important;
    font-size: 13px;
    line-height: normal;
}

.hud-button:disabled,
.hud-button.is-disabled,
.is-disabled {
    opacity: 0.5 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    background: var(--hud-surface) !important;
    border-color: rgba(255, 255, 255, 0.04) !important;
    color: var(--hud-text-muted) !important;
}

.hud-button:focus-visible,
.hud-close-button:focus-visible,
.selection-action-button:focus-visible,
.filename-input:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.22);
    outline-offset: 2px;
}

.hud-file-list,
.hud-saved-list,
.hud-session-log-list,
.hud-viewer,
.hud-metadata-view {
    position: relative;
    background: var(--hud-surface) !important;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.22) var(--hud-bg);
}

.hud-file-list::-webkit-scrollbar,
.hud-saved-list::-webkit-scrollbar,
.hud-session-log-list::-webkit-scrollbar,
.hud-viewer::-webkit-scrollbar,
.hud-metadata-view::-webkit-scrollbar {
    width: 11px;
    height: 11px;
}

.hud-file-list::-webkit-scrollbar-track,
.hud-saved-list::-webkit-scrollbar-track,
.hud-session-log-list::-webkit-scrollbar-track,
.hud-viewer::-webkit-scrollbar-track,
.hud-metadata-view::-webkit-scrollbar-track {
    background: var(--hud-bg);
    border-left: 1px solid var(--hud-border);
}

.hud-file-list::-webkit-scrollbar-thumb,
.hud-saved-list::-webkit-scrollbar-thumb,
.hud-session-log-list::-webkit-scrollbar-thumb,
.hud-viewer::-webkit-scrollbar-thumb,
.hud-metadata-view::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.22);
    border: 2px solid var(--hud-bg);
    border-radius: var(--control-radius);
    background-clip: padding-box;
}

.hud-list-header {
    color: var(--hud-text-dim) !important;
    letter-spacing: 0.06em;
}

.hud-list-header span {
    color: var(--hud-text-dim) !important;
    font-size: 0.8rem;
}

.hud-file-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding: var(--space-lg) !important;
}

.hud-genre-diagnostics {
    margin-top: var(--space-md);
    border-top: 1px solid var(--hud-border);
    padding-top: var(--space-md);
    color: var(--hud-text-dim);
    font-size: 12px;
}

.hud-genre-diagnostics summary {
    cursor: pointer;
    color: var(--hud-text);
}

.hud-genre-diagnostics pre {
    margin: var(--space-sm) 0 0;
    white-space: pre-wrap;
    font: inherit;
    line-height: 1.5;
}

#panel-files {
    gap: var(--space-lg) !important;
}

#resizer-vertical,
#resizer-col {
    background: rgba(255, 255, 255, 0.06) !important;
    box-shadow: none !important;
}

#resizer-vertical:hover,
#resizer-col:hover {
    background: rgba(255, 255, 255, 0.14) !important;
}

.file-item,
.saved-item {
    display: flex;
    align-items: center;
    overflow: hidden;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--control-radius) !important;
    background: var(--hud-panel) !important;
    color: #dce5ee !important;
    box-shadow: none !important;
}

.file-item {
    gap: 0;
    min-height: 46px;
    margin-bottom: 0;
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    font-size: 0.98rem;
    transition:
        background-color 0.16s ease,
        border-color 0.16s ease;
}

.file-item:hover,
.saved-item:hover {
    background: var(--hud-surface-hover) !important;
    border-color: rgba(255, 255, 255, 0.12) !important;
}

.file-item.active {
    background: var(--hud-surface-active) !important;
    border-color: rgba(255, 255, 255, 0.16) !important;
    color: var(--hud-text-strong) !important;
    font-weight: 600;
}

.file-item .file-name,
.file-item .new-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-item .file-name {
    padding-right: var(--space-md);
    color: var(--hud-text-dim) !important;
    font-size: 0.94rem;
}

.file-item .new-name {
    color: var(--hud-text) !important;
    font-size: 0.96rem;
    font-weight: 600;
}

.file-item .new-name.pending {
    color: var(--hud-text-muted) !important;
    font-style: italic;
}

.hud-empty-state,
#file-list > p {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 170px;
    padding: var(--space-section) var(--space-lg);
    border: 1px dashed rgba(255, 255, 255, 0.08) !important;
    border-radius: var(--hud-radius) !important;
    background: var(--hud-surface) !important;
    color: var(--hud-text-dim) !important;
    text-align: center;
}

#file-list > p {
    margin: 0;
    font-style: normal !important;
    font-size: 1rem !important;
}

.hud-empty-icon {
    display: none !important;
}

.hud-empty-title {
    margin: 0 0 var(--space-sm);
    color: #dce5ee !important;
    font-family: var(--hud-font-ui);
    font-size: 0.96rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.hud-empty-text {
    margin: 0;
    max-width: 260px;
    color: var(--hud-text-dim) !important;
    font-size: 0.92rem;
    line-height: 1.5;
}

.hud-viewer {
    isolation: isolate;
    padding: var(--space-lg) !important;
    color: #dce5ee !important;
    font-family: "Georgia", "Times New Roman", serif;
    line-height: 1.85 !important;
    text-shadow: none;
}

.hud-viewer-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    padding: var(--space-section) var(--space-lg);
    color: var(--hud-text-dim) !important;
    text-align: center;
    font-family: var(--hud-font-ui) !important;
    font-size: 1rem !important;
    font-style: normal !important;
    letter-spacing: 0;
    text-transform: none;
}

.hud-viewer-empty-title,
.hud-viewer-empty-text {
    margin: 0;
    font-family: var(--hud-font-ui);
}

.hud-viewer-empty-title {
    color: var(--hud-text);
    font-size: 1rem;
    font-weight: 600;
}

.hud-viewer-empty-text {
    margin-top: 6px;
    color: var(--hud-text-muted);
    font-size: 0.88rem;
}

.hud-editor-footer {
    padding: var(--space-md) var(--space-lg) !important;
}

.hud-editor-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
    gap: var(--space-sm) var(--space-md);
    align-items: center;
}

.hud-editor-label {
    margin: 0 !important;
}

.hud-editor-input {
    min-width: 0;
}

.hud-editor-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    grid-column: 3;
    grid-row: 2;
}

.hud-template-options {
    grid-column: 2;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    margin: 0;
    color: var(--hud-text-dim) !important;
    font-size: 12px;
}

.hud-template-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.hud-viewer.hidden,
.hud-metadata-view.hidden {
    display: none !important;
}

.hud-metadata-view {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--hud-text);
    font-family: var(--hud-font-ui);
}

.hud-metadata-content {
    max-width: 760px;
}

.hud-metadata-kicker {
    margin: 0 0 var(--space-lg);
    color: var(--hud-text-dim);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hud-metadata-list {
    display: grid;
    gap: 0;
    margin: 0;
}

.hud-metadata-row {
    display: grid;
    grid-template-columns: minmax(130px, 0.4fr) minmax(0, 1fr);
    gap: var(--space-lg);
    padding: 12px 0;
    border-bottom: 1px solid var(--hud-border);
}

.hud-metadata-row dt {
    color: var(--hud-text-dim);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hud-metadata-row dd {
    min-width: 0;
    margin: 0;
    overflow-wrap: anywhere;
    color: #dce5ee;
}

.hud-metadata-flow-divider {
    padding: 6px 0 0;
    color: var(--hud-text-dim);
    font-size: 0.9rem;
    line-height: 1;
}

.hud-metadata-select {
    width: min(100%, 320px);
    min-height: 38px;
    padding: 7px 34px 7px 10px;
    border: 1px solid var(--hud-border);
    border-radius: var(--control-radius);
    background: var(--hud-bg);
    color: #dce5ee;
    font: inherit;
}

.hud-metadata-select:focus-visible,
.hud-viewer-tab:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.22);
    outline-offset: 2px;
}

.hud-footer-grid > .hud-button {
    align-self: flex-end !important;
    flex: 0 0 auto;
}

#btn-download {
    min-width: var(--button-wide-min-width);
}

#btn-reset-current {
    min-width: var(--button-min-width);
}

.hud-footer-grid > .flex-1 {
    position: relative;
}

.hud-input-group {
    position: relative;
    display: flex;
    align-items: center !important;
    overflow: hidden;
    height: var(--control-height) !important;
    min-height: 0 !important;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--control-radius) !important;
    background: var(--hud-surface) !important;
    box-shadow: none !important;
}

.hud-input-group:focus-within {
    border-color: rgba(255, 255, 255, 0.18) !important;
}

.hud-input-group:has(.filename-input.active) {
    border-color: var(--hud-accent) !important;
    background: rgba(74, 222, 128, 0.08) !important;
}

.hud-input-group:has(.filename-input.active) .hud-ext {
    border-left-color: rgba(74, 222, 128, 0.24) !important;
    background: rgba(74, 222, 128, 0.1) !important;
    color: var(--hud-accent) !important;
}

.hud-input,
.hud-ext {
    background: transparent !important;
    border-color: transparent !important;
    color: var(--hud-text) !important;
    font-family: var(--hud-font-mono);
    font-size: 14px;
    height: var(--control-height) !important;
    min-height: 0 !important;
    box-sizing: border-box;
    letter-spacing: 0;
    line-height: normal;
}

.hud-input {
    padding: 0 10px !important;
    border-radius: var(--control-radius) 0 0 var(--control-radius) !important;
    box-shadow: none !important;
}

.hud-input::placeholder {
    color: var(--hud-text-muted);
}

.hud-input:focus {
    border-color: transparent !important;
    box-shadow: none !important;
    outline: none;
}

select.hud-input {
    background-color: var(--hud-surface) !important;
}

select.hud-input option {
    background-color: var(--hud-surface);
    color: var(--hud-text);
}

.hud-ext {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 64px;
    padding: 0 10px !important;
    border-left: 1px solid var(--hud-border) !important;
    background: var(--hud-panel) !important;
    color: var(--hud-text-dim) !important;
    font-size: 0.88rem;
    text-transform: uppercase;
}

.filename-input.active {
    color: var(--hud-accent) !important;
}

.filename-input:not(.active) {
    opacity: 0.86;
}

.hud-app-footer {
    display: grid;
    align-items: center;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-md);
    min-height: 36px;
    padding: 6px var(--space-lg);
    border-top: 1px solid var(--hud-border);
    color: var(--hud-text-muted);
    font-size: 12px;
    line-height: 1.35;
}

.hud-app-footer-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0 var(--space-sm);
    min-width: 0;
}

.hud-app-footer a {
    color: inherit;
    text-decoration: none;
    transition: color 0.16s ease;
}

.hud-app-footer a:hover,
.hud-app-footer a:focus-visible {
    color: var(--hud-accent);
}

.hud-app-footer a:focus-visible {
    outline: 2px solid rgba(74, 222, 128, 0.42);
    outline-offset: 2px;
    border-radius: 2px;
}

.hud-app-footer p {
    flex: 0 0 auto;
    justify-self: end;
    margin: 0;
    white-space: nowrap;
}

.hud-folder-path {
    position: relative;
    color: var(--hud-text-dim) !important;
    background: var(--hud-surface) !important;
    border-top-color: var(--hud-border) !important;
}

.saved-item {
    gap: var(--space-md);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
    transition:
        background-color 0.16s ease,
        border-color 0.16s ease;
}

.saved-item .saved-icon {
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hud-surface) !important;
    border: 1px solid var(--hud-border) !important;
    border-radius: var(--control-radius);
    font-size: 1rem;
}

.saved-item .saved-info {
    flex: 1;
    min-width: 0;
}

.saved-item .saved-original {
    font-size: 0.92rem;
    color: var(--hud-text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.saved-item .saved-renamed {
    font-size: 1.04rem;
    color: var(--hud-text);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.saved-item .saved-meta {
    margin-top: var(--space-sm);
    color: var(--hud-text-muted);
    font-size: 0.82rem;
}

.saved-item .btn-delete-saved {
    flex-shrink: 0;
    width: var(--control-height);
    min-width: var(--control-height);
    flex-basis: var(--control-height);
    height: var(--control-height) !important;
    padding: 0 !important;
    font-size: 14px;
}

.hud-session-log-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    background: var(--hud-surface) !important;
}

.hud-log-entry {
    display: grid;
    grid-template-columns: 72px 86px 1fr;
    gap: var(--space-md);
    align-items: start;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--hud-border);
    border-radius: var(--control-radius);
    background: var(--hud-panel);
    color: var(--hud-text);
    font-size: 13px;
    line-height: 1.5;
}

.hud-log-time,
.hud-log-type {
    color: var(--hud-text-dim);
    font-family: var(--hud-font-mono);
    white-space: nowrap;
}

.hud-log-type {
    text-transform: uppercase;
}

.hud-log-entry-error .hud-log-type {
    color: #ffc6cf;
}

.hud-log-message {
    min-width: 0;
    overflow-wrap: anywhere;
}

.selection-actions {
    position: absolute;
    z-index: 1000;
    display: flex;
    overflow: hidden;
    gap: var(--space-sm);
    padding: var(--space-sm);
    border: 1px solid rgba(255, 255, 255, 0.08) !important;
    border-radius: var(--hud-radius) !important;
    background: var(--hud-panel) !important;
    box-shadow: var(--hud-shadow) !important;
}

.selection-action-button {
    height: var(--control-height) !important;
    min-height: 0 !important;
    min-width: var(--button-min-width);
    flex: 0 0 auto;
    padding: 0 14px !important;
}

.hud-close-button {
    width: var(--control-height);
    min-width: var(--control-height);
    flex-basis: var(--control-height);
    height: var(--control-height) !important;
    min-height: 0 !important;
    padding: 0 !important;
    color: #c8d2de !important;
    font-size: 14px !important;
    letter-spacing: 0 !important;
}

main {
    flex: 1;
    min-height: 0;
}

#panel-files {
    min-width: 150px;
}

#panel-viewer {
    min-width: 200px;
}

@media (max-width: 1100px) {
    .hud-toolbar {
        gap: var(--space-md);
        padding-left: 0;
    }

    .hud-editor-grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .hud-editor-actions-spacer {
        display: none;
    }

    .hud-editor-actions {
        grid-column: 1;
        grid-row: 3;
        justify-content: flex-start;
    }

    .hud-template-options {
        grid-column: 2;
        grid-row: 3;
        align-self: center;
    }

    .hud-queue-header {
        flex-wrap: wrap;
    }

    .hud-queue-actions {
        margin-left: 0;
    }

    .hud-catalog-actions .hud-button,
    .hud-catalog-actions #catalog-export-scope,
    .hud-catalog-actions #catalog-export-format {
        flex: 1 1 150px;
    }
}

@media (max-width: 600px) {
    .hud-editor-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .hud-editor-actions,
    .hud-template-options {
        grid-column: 1;
        grid-row: auto;
        justify-self: start;
    }
}

@media (max-width: 900px) {
    body.hud-shell {
        padding: var(--space-md);
    }

    .hud-header {
        flex-direction: column;
        align-items: stretch !important;
        gap: var(--space-md);
        min-height: auto;
    }

    .hud-brand {
        position: static;
        transform: none;
        align-items: center;
    }

    .hud-title {
        font-size: 20px !important;
    }

    .hud-brand .hud-title {
        font-size: 30px !important;
    }

    .hud-toolbar {
        justify-content: flex-start;
    }

    #btn-how-it-works {
        position: static;
        transform: none;
    }

    .hud-main {
        flex-direction: column;
    }

    #panel-files {
        width: 100% !important;
        min-width: 0;
    }

    #resizer-vertical {
        display: none;
    }

    #panel-viewer {
        min-width: 0;
        min-height: 300px;
    }

}

@media (max-width: 480px) {
    .hud-app-footer {
        display: flex;
        align-items: flex-start;
        flex-direction: column;
        gap: 2px;
        padding: 6px var(--space-md);
    }

    .hud-app-footer-links {
        flex-wrap: nowrap;
        gap: 0 2px;
        font-size: clamp(8px, 2.7vw, 11px);
        white-space: nowrap;
    }
}