/* Design tokens and reset */

:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --surface-raised: #161616;
    --surface-hover: #1c1c1c;
    --border: #222222;
    --border-strong: #2a2a2a;
    --text: #e8e8e8;
    --text-dim: #d6d6d6;
    --text-muted: #a8a8a8;
    --accent: #ffffff;
    --accent-strong: #ffffff;
    --accent-soft: rgba(255, 255, 255, 0.07);
    --danger: #f87171;
    --danger-soft: rgba(248, 113, 113, 0.1);
    --warning: #fbbf24;
    --cyan: #67e8f9;
    --blue: #60a5fa;
    --violet: #c084fc;
    --green: #4ade80;
    --chart-0: #67e8f9;
    --chart-1: #60a5fa;
    --chart-2: #c084fc;
    --chart-3: #fbbf24;
    --chart-4: #4ade80;
    --radius-sm: 0;
    --radius: 0;
    --radius-lg: 0;
    --shadow: none;
    --font-ui: Inter, system-ui, sans-serif;
    --font-mono: "JetBrains Mono", Consolas, monospace;
    --ease: 180ms ease;
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    color-scheme: dark;
    scrollbar-color: var(--border-strong) var(--bg);
}
body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 14px;
    line-height: 1.5;
}
button,
input,
select,
textarea {
    font: inherit;
}
button,
select {
    color: inherit;
}
button {
    border: 0;
}
button:not(:disabled),
select:not(:disabled) {
    cursor: pointer;
}
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
    outline: 2px solid var(--accent-strong);
    outline-offset: 2px;
}
button:disabled,
select:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}
code {
    font-family: var(--font-mono);
}

/* Application shell */

.app {
    width: min(1440px, 100%);
    min-height: 100vh;
    margin: 0 auto;
    padding: 0 24px;
}
.header {
    display: flex;
    align-items: center;
    min-height: 64px;
    border-bottom: 1px solid var(--border);
}
.logo-text {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
    color: var(--text-dim);
}
.footer-spacer {
    min-height: 56px;
}
.footer {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 0 28px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
}

/* Ciphertext input */

.input-section {
    display: grid;
    gap: 12px;
    padding: 24px 0 20px;
}
.ciphertext-workbench {
    display: flex;
    min-height: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    transition: border-color var(--ease);
}
.input-section.has-content .ciphertext-workbench,
.ciphertext-workbench:focus-within {
    border-color: var(--border-strong);
}
.ciphertext-main {
    display: flex;
    flex: 1;
    min-width: 0;
}
#ciphertextInput {
    width: 100%;
    height: 210px;
    min-height: 100px;
    padding: 20px;
    resize: vertical;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.8;
}
#ciphertextInput::placeholder {
    color: var(--text-muted);
}
.text-tools-panel {
    display: none;
    grid-template-rows: auto auto 1fr;
    gap: 14px;
    width: 0;
    padding: 18px 0;
    overflow: hidden;
    border-right: 0 solid var(--border);
    opacity: 0;
}
.tools-open .text-tools-panel {
    display: grid;
    width: 220px;
    padding: 18px;
    border-right-width: 1px;
    opacity: 1;
}
.text-tools-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.text-tools-title,
.analysis-card-label {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}
.text-tools-group,
.text-tools-replace {
    display: grid;
    gap: 8px;
}
.text-tool-input {
    width: 100%;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
}
.text-tool-input:focus {
    border-color: var(--border-strong);
}
.input-controls,
.panel-controls,
.manipulation-controls {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}
.input-controls {
    justify-content: flex-start;
}

/* Buttons and tabs */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 13px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease);
}
.btn:not(:disabled):active {
    transform: translateY(1px);
}
.btn-secondary {
    border-color: var(--border);
    background: transparent;
    color: var(--text-dim);
}
.btn-secondary:not(:disabled):hover {
    border-color: var(--border-strong);
    background: var(--surface-hover);
    color: var(--text);
}
.btn-run {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--bg);
}
.btn-run:not(:disabled):hover {
    border-color: #999999;
    background: #999999;
}
.btn-run.running {
    border-color: rgba(248, 113, 113, 0.3);
    background: var(--danger-soft);
    color: var(--danger);
}
.text-tool-btn {
    width: 100%;
}
.main-tabs,
.tabs-scroll {
    display: flex;
    align-items: stretch;
    gap: 4px;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-color: var(--border-strong) transparent;
    scrollbar-width: thin;
}
.tabs-scroll {
    width: 100%;
    padding-bottom: 7px;
}
.main-tabs::-webkit-scrollbar,
.tabs-scroll::-webkit-scrollbar {
    height: 6px;
}
.main-tabs::-webkit-scrollbar-track,
.tabs-scroll::-webkit-scrollbar-track {
    background: var(--surface);
}
.main-tabs::-webkit-scrollbar-thumb,
.tabs-scroll::-webkit-scrollbar-thumb {
    background: var(--text-dim);
}
.main-tabs {
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border);
}
.main-tab,
.tab {
    position: relative;
    flex: 0 0 auto;
    padding: 11px 14px;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: nowrap;
    transition: color var(--ease), background var(--ease);
}
.main-tab {
    flex: 1;
}
.main-tab::after,
.tab::after {
    content: "";
    position: absolute;
    right: 12px;
    bottom: -1px;
    left: 12px;
    height: 1px;
    background: var(--accent-strong);
    opacity: 0;
    transform: scaleX(0.6);
    transition: opacity var(--ease), transform var(--ease);
}
.main-tab:hover,
.tab:hover {
    color: var(--text-dim);
    background: rgba(255, 255, 255, 0.018);
}
.main-tab.active,
.tab.active {
    color: var(--text);
}
.main-tab.active::after,
.tab.active::after {
    opacity: 1;
    transform: scaleX(1);
}
.main-tab[data-main-tab="solver"].active::after,
#tabsScroll .tab.active::after { background: var(--cyan); }
.main-tab[data-main-tab="analysis"].active::after,
#analysisTabs .tab.active::after { background: var(--violet); }
.main-tab[data-main-tab="create"].active::after { background: var(--green); }
.main-tab[data-main-tab="manuals"].active::after { background: var(--warning); }
.main-tab[data-main-tab="tools"].active::after { background: var(--violet); }
.tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.tab-indicator {
    width: 6px;
    height: 6px;
    border-radius: 0;
    background: var(--text-muted);
}
.tab-indicator.running {
    background: var(--warning);
    animation: pulse 1.4s ease-in-out infinite;
}
.tab-indicator.done {
    background: var(--green);
}
.tab-indicator.error,
.tab-indicator.stopped {
    background: var(--danger);
}

/* Panels and solver */

.main-panel,
.analysis-pane,
.cipher-panel {
    display: none;
}
.main-panel.active,
.analysis-pane.active,
.cipher-panel.active {
    display: block;
    animation: panel-in 180ms ease-out both;
}
.cipher-section,
.analysis-shell,
.manuals-shell {
    min-width: 0;
}
.tabs-container {
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.panel-header,
.manipulation-header,
.manipulation-console-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-bottom: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: var(--surface);
}
.panel-title {
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.04em;
}
.panel-status {
    min-width: 72px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
    text-align: right;
}
.run-symbol {
    margin-right: 7px;
    font-size: 9px;
}
.progress-track {
    height: 3px;
    overflow: hidden;
    background: var(--surface-raised);
}
.progress-fill {
    width: 0;
    height: 100%;
    background: var(--cyan);
    transition: width 250ms ease;
}
.progress-fill.indeterminate {
    animation: progress 1.2s ease-in-out infinite;
}
.terminal {
    height: min(480px, 54vh);
    min-height: 300px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-top: 0;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    background: #090b0e;
}
.terminal-body {
    height: 100%;
    padding: 18px;
    overflow: auto;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.75;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.terminal-line {
    animation: line-in 120ms ease-out both;
}
.terminal-line.info {
    color: #93c5fd;
}
.terminal-line.success,
.terminal-line.highlight {
    color: var(--green);
}
.terminal-line.highlight {
    margin: 8px 0;
    padding: 10px 12px;
    border-left: 2px solid var(--accent-strong);
    background: var(--accent-soft);
}
.terminal-line.error-line {
    color: var(--danger);
}
.terminal-cursor {
    display: inline-block;
    width: 7px;
    height: 13px;
    margin-left: 3px;
    background: var(--accent-strong);
    animation: blink 1s steps(1) infinite;
}

/* Analysis and statistics */

.analysis-shell {
    display: grid;
    gap: 12px;
    width: min(1060px, 100%);
    margin: 0 auto;
}
.manuals-shell {
    display: grid;
    gap: 16px;
}
.analysis-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 42px;
    border-bottom: 1px solid var(--border);
}
.analysis-toolbar .tabs-scroll {
    width: auto;
    padding: 0;
}
.analysis-action {
    min-height: 30px;
}
.analysis-toolbar .btn-run {
    border-color: var(--violet);
    background: var(--violet);
}
.statistics-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.statistics-actions input {
    width: 46px;
    height: 30px;
    padding: 0 6px;
    border: 1px solid var(--border-strong);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
}
.analysis-action-patterns,
.analysis-shell[data-active-analysis="patterns"] .analysis-action-statistics {
    display: none;
}
.analysis-shell[data-active-analysis="patterns"] .analysis-action-patterns {
    display: inline-flex;
}
.analysis-pane {
    min-height: 360px;
}
.analysis-summary,
.statistics-summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 12px;
}
.stat-metric {
    min-width: 0;
    padding: 9px 11px;
    border-top: 2px solid var(--text-dim);
    background: var(--surface);
    font-variant-numeric: tabular-nums;
}
.stat-metric span {
    display: block;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.stat-metric strong {
    display: block;
    margin-top: 2px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 600;
    line-height: 1.15;
}
.metric-cyan { border-color: var(--cyan); }
.metric-amber { border-color: var(--warning); }
.metric-violet { border-color: var(--violet); }
.metric-green { border-color: var(--green); }
.analysis-card,
.analysis-empty,
.analysis-loading-card,
.manuals-placeholder {
    padding: 14px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
}
.analysis-card-label,
.analysis-loading-title {
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.analysis-card-value {
    margin-top: 6px;
    color: var(--text);
    font-family: var(--font-mono);
}
.analysis-card-warning { border-color: var(--danger); }
.analysis-loading-card {
    display: grid;
    gap: 10px;
}
.statistics-whole {
    display: grid;
    gap: 12px;
}
.primary-analysis-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.85fr) minmax(300px, 1fr);
    gap: 10px;
    align-items: start;
}
.frequency-panel,
.normalization-panel {
    min-width: 0;
    padding: 12px;
    border: 1px solid var(--border);
    background: var(--surface);
}
.frequency-panel > header,
.normalization-panel > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}
.frequency-panel > header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
}
.frequency-panel h2,
.normalization-panel h2,
.alphabet-inline h3 {
    margin: 0;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
}
.frequency-panel header span,
.alphabet-inline > div > span {
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.frequency-readouts,
.frequency-view-controls {
    display: flex;
    align-items: center;
    gap: 6px;
}

.frequency-view-controls { margin-top: 8px; }
.frequency-readouts { gap: 14px; }
.frequency-readouts span {
    display: grid;
    min-width: 92px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
    text-align: right;
}
.frequency-readouts strong {
    color: var(--text);
    font-size: 20px;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}
.frequency-readouts span:first-child strong { color: var(--cyan); }
.frequency-readouts span:last-child strong { color: var(--violet); }
.frequency-readouts span:last-child { min-width: 118px; }
.frequency-view-controls select,
.frequency-view-controls button {
    height: 34px;
    padding: 0 10px;
    border: 1px solid var(--border-strong);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
}
.frequency-view-controls button:hover {
    border-color: var(--cyan);
    color: var(--cyan);
}
.frequency-table-tools {
    display: grid;
    grid-template-columns: minmax(100px, 1fr) minmax(150px, auto) auto;
    gap: 6px;
    align-items: center;
    margin-top: 10px;
}
.frequency-table-tools input,
.frequency-table-tools select {
    height: 30px;
    padding: 0 7px;
    border: 1px solid var(--border-strong);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
}
.frequency-table-tools span {
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
    text-align: right;
}
.frequency-chart,
.ioc-chart {
    display: grid;
    gap: 5px;
    font-variant-numeric: tabular-nums;
}
.frequency-chart.show-all {
    display: flex;
    align-items: stretch;
    gap: 1px;
    height: 220px;
    overflow: hidden;
}
.frequency-chart.show-all .frequency-bar {
    display: flex;
    flex: 1 1 0;
    align-items: stretch;
    min-width: 0;
}
.frequency-chart.show-all .frequency-bar :is(code, strong, span) {
    display: none;
}
.frequency-chart.show-all .frequency-bar i {
    width: 100%;
    height: auto;
    background: transparent;
}
.frequency-chart.show-all .frequency-bar i::after {
    inset: auto 0 0;
    width: 100%;
    height: var(--value);
}
.frequency-bar {
    display: grid;
    grid-template-columns: 58px minmax(80px, 280px) 38px 48px;
    gap: 7px;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 12px;
}
.frequency-bar code {
    overflow: hidden;
    color: var(--text);
    text-overflow: ellipsis;
    white-space: nowrap;
}
.frequency-bar i,
.ioc-chart i,
.ioc-reference i {
    position: relative;
    height: 5px;
    background: var(--surface-hover);
}
.frequency-bar i::after,
.ioc-chart i::after,
.ioc-reference i::after {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: var(--value);
    max-width: 280px;
    background: var(--bar);
}
.frequency-bar strong,
.ioc-chart strong,
.ioc-reference strong {
    color: var(--text);
    font-weight: 500;
    text-align: right;
}
.frequency-bar span {
    color: var(--text);
    text-align: right;
}
.normalization-tabs {
    display: flex;
    gap: 2px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.normalization-tabs button {
    min-height: 30px;
    padding: 0 8px;
    border-bottom: 1px solid transparent;
    background: transparent;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.normalization-tabs button:hover,
.normalization-tabs button.active {
    border-color: var(--violet);
    color: var(--text);
}
.ioc-chart > div {
    display: grid;
    grid-template-columns: 76px minmax(70px, 180px) 56px;
    gap: 7px;
    align-items: center;
    padding: 3px 0;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
}
.ioc-reference {
    display: grid;
    gap: 5px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}
.ioc-reference header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 3px;
}
.ioc-reference h3 {
    margin: 0;
    color: var(--text);
    font-size: 12px;
}
.ioc-reference label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 9px;
}
.ioc-reference select {
    height: 30px;
    padding: 0 7px;
    border: 1px solid var(--border-strong);
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
}
.ioc-reference > div {
    display: grid;
    grid-template-columns: 76px minmax(70px, 180px) 56px;
    gap: 7px;
    align-items: center;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
}
.ioc-chart > div.active {
    color: var(--text);
}
.alphabet-inline {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}
.alphabet-inline > div:first-child {
    display: flex;
    justify-content: space-between;
    gap: 8px;
}
.alphabet-plot {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 7px;
}
.alphabet-plot code {
    min-width: 24px;
    padding: 2px 4px;
    border-bottom: 2px solid var(--bar);
    color: var(--text);
    font-size: 12px;
    text-align: center;
}
.frequency-panel .statistics-table-panel {
    margin-top: 10px;
}
.statistics-table-panel {
    min-width: 0;
    border: 1px solid var(--border);
}
.statistics-table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 8px;
    color: var(--text);
    font-size: 10px;
}
.statistics-export-btn,
.statistics-table-toggle {
    min-height: 28px;
    padding: 0 8px;
    border: 1px solid var(--border-strong);
    background: transparent;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 8px;
}
.statistics-export-btn:hover,
.statistics-table-toggle:hover {
    border-color: var(--text-dim);
    color: var(--text);
}
.statistics-table-shell {
    max-height: 300px;
    overflow: auto;
}
.statistics-table-panel.expanded .statistics-table-shell {
    max-height: none;
}
.statistics-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12px;
    font-variant-numeric: tabular-nums;
}
.statistics-table th,
.statistics-table td {
    padding: 5px 8px;
    border-top: 1px solid var(--border);
    text-align: left;
}
.statistics-table th {
    position: sticky;
    top: 0;
    background: var(--surface-raised);
    color: var(--text);
    font-weight: 500;
}
.statistics-table td { color: var(--text); }
.statistics-table :is(th, td):nth-child(2),
.statistics-table :is(th, td):nth-child(3) {
    color: var(--text);
    text-align: right;
}
.statistics-table-panel:not(.expanded) tbody tr:nth-child(n+6) { display: none; }
.statistics-table-toggle {
    width: 100%;
    border-width: 1px 0 0;
}
.statistics-empty-line {
    padding: 8px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 9px;
}
.findings-ledger {
    display: grid;
    gap: 6px;
}
.finding {
    --finding: var(--blue);
    min-width: 0;
    padding: 10px 12px;
    border-left: 2px solid var(--finding);
    background: var(--surface);
}
.finding-cyan { --finding: var(--cyan); }
.finding-amber { --finding: var(--warning); }
.finding-violet { --finding: var(--violet); }
.finding-green { --finding: var(--green); }
.finding > header {
    display: grid;
    grid-template-columns: 28px max-content minmax(0, 1fr) auto;
    gap: 8px;
    align-items: baseline;
}
.finding > header span,
.finding > header small {
    color: var(--finding);
    font-family: var(--font-mono);
    font-size: 10px;
}
.finding h3 {
    min-width: 0;
    margin: 0;
    color: var(--text);
    font-size: 14px;
    overflow-wrap: anywhere;
}
.finding > header strong {
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 15px;
    font-variant-numeric: tabular-nums;
}
.finding-evidence {
    margin: 7px 0 0 36px;
    color: var(--text);
    font-size: 12px;
}
.finding-evidence p {
    margin: 3px 0;
}
.finding-example {
    display: block;
    margin: 7px 0 0 36px;
    padding-left: 8px;
    border-left: 1px solid var(--finding);
    color: var(--text);
    font-size: 11px;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.finding footer {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 7px 0 0 36px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 10px;
    font-variant-numeric: tabular-nums;
}
@media (max-width: 900px) {
    .primary-analysis-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 680px) {
    .analysis-toolbar {
        align-items: stretch;
        flex-direction: column;
        padding-bottom: 8px;
    }
    .analysis-action { width: 100%; }
    .statistics-actions { justify-content: space-between; }
    .analysis-summary,
    .statistics-summary {
        grid-template-columns: repeat(2, 1fr);
    }
    .normalization-panel > header {
        align-items: flex-start;
        flex-direction: column;
    }
    .frequency-panel > header { grid-template-columns: 1fr; }
    .normalization-tabs { justify-content: flex-start; }
    .frequency-readouts { width: 100%; }
    .frequency-readouts span { text-align: left; }
    .frequency-bar {
        grid-template-columns: 48px minmax(60px, 1fr) 36px 46px;
        gap: 5px;
    }
    .finding > header {
        grid-template-columns: 28px minmax(0, 1fr) auto;
    }
    .finding > header small {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    .finding h3 {
        grid-column: 1 / -1;
        grid-row: 2;
    }
    .finding-evidence,
    .finding-example,
    .finding footer { margin-left: 0; }
}

/* Create, manuals, and tools */

.manipulation-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.8fr);
    gap: 14px;
    min-height: 520px;
}
.manipulation-workspace,
.ugc-create-side {
    min-width: 0;
    overflow: hidden;
}
.manipulation-workspace {
    display: grid;
    grid-template-rows: auto minmax(400px, 1fr);
}
.manipulation-header {
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
}
.manipulation-header > div:first-child {
    min-width: 0;
}
.analysis-copy {
    max-width: 70ch;
    margin: 6px 0 0;
    color: var(--text-muted);
    font-size: 12px;
    overflow-wrap: anywhere;
}
.analysis-copy code {
    color: var(--accent);
}
.manipulation-editor-shell,
.manipulation-editor {
    width: 100%;
    min-height: 400px;
}
.manipulation-console-header {
    border: 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
}
#createStatus {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: .08em;
    text-transform: uppercase;
}
#createStatus[data-tone="running"] {
    color: var(--warning);
}
#createStatus[data-tone="success"] {
    color: var(--accent);
}
#createStatus[data-tone="error"] {
    color: var(--danger);
}
.ugc-create-side {
    max-height: 650px;
    overflow: auto;
    border-left: 1px solid var(--border);
}
.ugc-create-form,
.ugc-console,
.ugc-detail {
    padding: 14px;
}
.ugc-create-form,
.ugc-fields,
.ugc-prompts {
    display: grid;
    gap: 9px;
}
.ugc-actions,
.ugc-library > header,
.ugc-runner > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.ugc-meta-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 110px;
    gap: 9px;
}
.ugc-meta-grid label {
    display: grid;
    min-width: 0;
    gap: 4px;
    color: var(--text);
    font: 11px var(--font-mono);
}
.ugc-title-field input { min-width: 0; }
.ugc-create-form input,
.ugc-create-form textarea,
.ugc-create-form select,
.ugc-fields input,
.ugc-fields textarea,
.ugc-fields select,
.ugc-prompts input {
    width: 100%;
    min-height: 34px;
    padding: 7px 9px;
    border: 1px solid var(--border-strong);
    border-radius: 0;
    background: var(--bg);
    color: var(--text);
    font: 12px var(--font-mono);
}
.ugc-create-form textarea,
.ugc-fields textarea {
    min-height: 70px;
    resize: vertical;
}
.ugc-fields textarea { min-height: 130px; }
.ugc-create-form input::placeholder,
.ugc-create-form textarea::placeholder,
.ugc-fields input::placeholder,
.ugc-fields textarea::placeholder,
.ugc-prompts input::placeholder {
    color: var(--text-dim);
    opacity: 1;
}
.ugc-fields label,
.ugc-prompts label {
    display: grid;
    gap: 4px;
    color: var(--text);
    font: 11px var(--font-mono);
}
.ugc-fields .ugc-check {
    display: flex;
    align-items: center;
}
.ugc-fields .ugc-check input {
    width: 16px;
    min-height: 16px;
}
.ugc-actions {
    justify-content: flex-end;
    margin-top: 3px;
}
.ugc-console {
    margin-top: 14px;
    border: 1px solid var(--border-strong);
    border-left: 2px solid var(--cyan);
    background: #090b0e;
}
.ugc-create-side > .ugc-console { margin: 0 14px 14px; }
.ugc-console pre,
.ugc-result {
    margin: 9px 0 0;
    color: var(--text);
    font: 12px/1.6 var(--font-mono);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.ugc-result {
    padding-top: 9px;
    border-top: 1px solid var(--green);
    color: var(--green);
}
.ugc-library {
    max-width: 1120px;
    margin: 0 auto;
}
.ugc-library > header {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}
.ugc-library-grid {
    min-height: 480px;
}
.ugc-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
}
.ugc-list-item {
    --ugc-color: var(--cyan);
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto;
    align-content: start;
    width: 100%;
    min-height: 170px;
    gap: 9px;
    padding: 15px;
    border: 1px solid var(--border);
    border-top: 2px solid var(--ugc-color);
    border-radius: 0;
    background: #0d0d0d;
    color: var(--text);
    text-align: left;
    transition: border-color var(--ease), background var(--ease), transform var(--ease);
}
.ugc-list-item.ugc-manual { --ugc-color: var(--warning); }
.ugc-list-item.ugc-tool { --ugc-color: var(--violet); }
.ugc-list-item:hover {
    border-color: var(--ugc-color);
    background: var(--surface-raised);
    transform: translateY(-2px);
}
.ugc-card-index,
.ugc-list-item time,
.ugc-runner time {
    color: var(--ugc-color);
    font: 10px var(--font-mono);
    letter-spacing: .06em;
    text-transform: uppercase;
}
.ugc-list-item time { text-align: right; }
.ugc-list-item strong {
    grid-column: 1 / -1;
    margin-top: 9px;
    color: var(--text);
    font: 600 17px var(--font-ui);
}
.ugc-card-copy {
    grid-column: 1 / -1;
    min-height: 44px;
    color: var(--text);
    font-size: 12px;
}
.ugc-runner p {
    color: var(--text);
    font-size: 11px;
}
.ugc-detail { padding: 0; }
.ugc-runner {
    --ugc-color: var(--cyan);
    padding: 18px;
    border: 1px solid var(--border);
    border-top: 2px solid var(--ugc-color);
    background: #0d0d0d;
}
.ugc-runner.ugc-manual { --ugc-color: var(--warning); }
.ugc-runner.ugc-tool { --ugc-color: var(--violet); }
.ugc-runner h2 {
    margin: 5px 0;
    color: var(--text);
    font-size: 24px;
}
.ugc-back {
    margin: 0 0 16px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--ugc-color);
    font: 11px var(--font-mono);
}
.ugc-runner > .ugc-fields,
.ugc-runner > .ugc-prompts {
    margin-top: 14px;
    padding: 14px;
    border: 1px solid var(--border-strong);
    border-left: 2px solid var(--ugc-color);
    background: #101010;
}
.ugc-runner > .ugc-fields:empty,
.ugc-runner > .ugc-prompts:empty { display: none; }
.ugc-runner > .ugc-actions { margin-top: 10px; }
.ugc-source,
.ugc-delete {
    margin-top: 14px;
    border-top: 1px solid var(--border);
    color: var(--text);
    font: 11px var(--font-mono);
}
.ugc-source summary,
.ugc-delete summary {
    padding: 11px 0;
    color: var(--text);
    cursor: pointer;
}
.ugc-source pre {
    max-height: 360px;
    margin: 0;
    padding: 12px;
    overflow: auto;
    background: var(--bg);
    color: var(--cyan);
    white-space: pre-wrap;
}
.ugc-delete { border-color: rgba(248, 113, 113, .35); }
.ugc-delete summary { color: var(--danger); }
.ugc-delete > div {
    display: flex;
    gap: 7px;
    max-width: 420px;
    padding-bottom: 8px;
}
.ugc-delete input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--danger);
    background: var(--bg);
    color: var(--text);
    padding: 8px;
}
.ugc-delete .btn {
    border-color: var(--danger);
    color: var(--danger);
}

/* Modal and toast */

.modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    place-items: center;
    padding: 20px;
    background: rgba(3, 5, 7, 0.76);
}
.modal.show {
    display: grid;
    animation: fade-in 160ms ease-out both;
}
.modal-content {
    width: min(560px, 100%);
    max-height: min(720px, 90vh);
    overflow: auto;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    background: var(--surface);
    animation: modal-in 180ms ease-out both;
}
.modal-header,
.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 15px 18px;
}
.modal-header {
    border-bottom: 1px solid var(--border);
}
.modal-footer {
    justify-content: flex-end;
    border-top: 1px solid var(--border);
}
.modal-title {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
}
.modal-close {
    width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    font-size: 20px;
}
.modal-close:hover {
    background: var(--surface-hover);
    color: var(--text);
}
.modal-body {
    padding: 18px;
}
.multi-select-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--text-muted);
}
.btn-link {
    padding: 0;
    background: transparent;
    color: var(--text-dim);
    font-family: var(--font-mono);
    font-size: 10px;
}
.btn-link:hover {
    color: var(--accent);
}
.ciphers-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}
.cipher-checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-dim);
    cursor: pointer;
    transition: background var(--ease), border-color var(--ease), color var(--ease);
}
.cipher-checkbox-label:hover {
    border-color: var(--border-strong);
    background: var(--surface-raised);
    color: var(--text);
}
.cipher-checkbox {
    width: 15px;
    height: 15px;
    margin: 0;
    accent-color: var(--accent-strong);
}
.toast-container {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 200;
    display: grid;
    gap: 8px;
}
.toast {
    max-width: 360px;
    padding: 11px 14px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface-raised);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 11px;
    animation: toast-in 180ms ease-out both;
}
.toast.toast-out {
    animation: toast-out 160ms ease-in both;
}

/* Motion */

@keyframes panel-in {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes card-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes line-in {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes blink {
    50% { opacity: 0; }
}
@keyframes pulse {
    50% { opacity: 0.45; }
}
@keyframes progress {
    from { transform: translateX(-110%); }
    to { transform: translateX(280%); }
}
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes modal-in {
    from { opacity: 0; transform: translateY(10px) scale(0.985); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toast-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
    to { opacity: 0; transform: translateY(5px); }
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 1ms !important;
    }
}

/* Responsive layout */

@media (max-width: 900px) {
    .app {
        padding: 0 16px;
    }
    .manipulation-shell {
        grid-template-columns: 1fr;
        min-height: 0;
    }
    .ugc-create-side {
        min-height: 260px;
    }
}
@media (max-width: 680px) {
    .app {
        padding: 0 12px;
    }
    .header {
        min-height: 54px;
    }
    .input-section {
        padding-top: 16px;
    }
    .ciphertext-workbench {
        display: grid;
    }
    .text-tools-panel,
    .tools-open .text-tools-panel {
        width: auto;
        border-right: 0;
    }
    .text-tools-panel {
        display: none;
    }
    .tools-open .text-tools-panel {
        display: grid;
        border-bottom: 1px solid var(--border);
    }
    .input-controls {
        justify-content: stretch;
    }
    .input-controls .btn,
    .input-controls select {
        flex: 1 1 calc(50% - 8px);
    }
    .main-tab {
        flex: 0 0 auto;
    }
    .ugc-meta-grid { grid-template-columns: 1fr; }
    .ugc-list { grid-template-columns: 1fr; }
    .panel-header,
    .manipulation-header {
        align-items: stretch;
        flex-direction: column;
    }
    .panel-controls,
.manipulation-controls {
        justify-content: flex-start;
    }
    .panel-status {
        width: 100%;
        text-align: left;
    }
    .terminal {
        height: 430px;
        min-height: 260px;
    }
    .ciphers-grid {
        grid-template-columns: 1fr;
    }
    .footer {
        flex-direction: column;
    }
}