/* ============================================================================
   TabDSP Documentation - UI Overview Interactive Mockup Styles
   ============================================================================ */

/* Module palette tokens are defined globally in main.css as --module-*  */

/* ============================================================================
   Info Panel (sticky top)
   ============================================================================ */

.uio-info-panel {
    position: sticky;
    top: calc(var(--nav-height) + var(--spacing-md));
    z-index: 10;
    background: var(--color-bg-secondary);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    min-height: 56px;
    max-height: 220px;
    overflow: hidden;
    transition: max-height 200ms ease, padding 200ms ease;
}

.uio-info-panel[data-collapsed="true"] {
    max-height: 44px;
    padding-top: 6px;
    padding-bottom: 6px;
}

.uio-info-panel[data-collapsed="true"] .uio-info-content,
.uio-info-panel[data-collapsed="true"] .uio-info-default {
    display: none !important;
}

.uio-info-content {
    max-height: 172px;
    overflow-y: auto;
    padding-right: 8px;
}

.uio-info-collapse {
    position: absolute;
    top: 4px;
    right: 6px;
    width: 22px;
    height: 22px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    color: var(--color-text-tertiary);
    cursor: pointer;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 10px;
    line-height: 1;
}

.uio-info-collapse:hover {
    border-color: var(--module-eq-line);
    color: var(--module-eq);
}

.uio-info-panel[data-collapsed="true"] .uio-info-collapse-arrow {
    display: inline-block;
    transform: rotate(180deg);
}

.uio-info-default {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

.uio-info-default svg {
    color: var(--color-accent-cyan);
    flex-shrink: 0;
}

.uio-info-content {
    animation: uioFadeIn 150ms ease;
}

.uio-info-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.uio-info-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
}

.uio-info-badge {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-tertiary);
    color: var(--color-accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.uio-info-desc {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.uio-info-details {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    line-height: 1.6;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent-cyan);
}

.uio-info-details:empty {
    display: none;
}

.uio-info-details b {
    color: var(--color-text-secondary);
}

.uio-info-details code {
    font-size: var(--font-size-xs);
    padding: 1px 5px;
}

.uio-info-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-accent-cyan);
}

.uio-info-link:hover {
    color: var(--color-accent-blue);
}

@keyframes uioFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================================
   Mockup Container
   ============================================================================ */

.uio-mockup {
    background: #0f0f11;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 12px;
    color: #e4e4e7;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
}

/* Override for light theme - mockup always stays dark */
[data-theme="light"] .uio-mockup {
    border-color: rgba(0, 0, 0, 0.15);
}

/* ============================================================================
   Interactive Zones (clickable/hoverable regions)
   ============================================================================ */

.uio-zone {
    position: relative;
    cursor: pointer;
    transition: outline 150ms ease, box-shadow 150ms ease;
    outline: 2px solid transparent;
    outline-offset: -2px;
    border-radius: 4px;
}

.uio-zone:hover {
    outline-color: rgba(6, 182, 212, 0.4);
}

.uio-zone.uio-active {
    outline-color: rgba(6, 182, 212, 0.8);
    box-shadow: 0 0 0 1px rgba(6, 182, 212, 0.3), inset 0 0 20px rgba(6, 182, 212, 0.05);
}

/* Nested zones shouldn't show parent highlight on hover */
.uio-zone .uio-zone:hover {
    outline-color: rgba(6, 182, 212, 0.5);
}

.uio-zone .uio-zone {
    outline-offset: -1px;
}

/* ============================================================================
   Header Section
   ============================================================================ */

.uio-header {
    background: #18181b;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Title Row */
.uio-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.uio-status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #3b82f6;
    margin-right: 6px;
    animation: uioPulse 2s ease-in-out infinite;
}

@keyframes uioPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.uio-title-brand {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fafafa;
    pointer-events: none;
}

.uio-brand-accent {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.uio-mode-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: #27272a;
    border-radius: 4px;
    color: #a1a1aa;
    font-size: 11px;
    font-weight: 700;
    font-style: italic;
    margin-left: 4px;
}

.uio-label-sm {
    font-size: 11px;
    color: #a1a1aa;
}

.uio-muted {
    color: #71717a;
}

/* Controls Row */
.uio-controls-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 5px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    flex-wrap: wrap;
}

.uio-checkbox {
    display: inline-block;
    width: 13px;
    height: 13px;
    border: 1.5px solid #52525b;
    border-radius: 3px;
    margin-right: 4px;
    vertical-align: middle;
    position: relative;
}

.uio-checkbox.uio-checked {
    background: #06b6d4;
    border-color: #06b6d4;
}

.uio-checkbox.uio-checked::after {
    content: "✓";
    position: absolute;
    top: -2px;
    left: 1px;
    font-size: 10px;
    color: white;
    font-weight: 700;
}

.uio-ab-btn {
    display: inline-flex;
    align-items: center;
    background: #27272a;
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    font-weight: 700;
}

.uio-ab-active {
    color: #06b6d4;
}

.uio-ab-inactive {
    color: #52525b;
}

.uio-undo-btn,
.uio-redo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: #27272a;
    border-radius: 4px;
    font-size: 14px;
    color: #71717a;
}

.uio-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    padding: 1px 6px;
    border-radius: 3px;
    background: rgba(6, 182, 212, 0.15);
    color: #06b6d4;
    margin-right: 6px;
}

.uio-reset-btn {
    font-size: 10px;
    color: #71717a;
    background: #27272a;
    border-radius: 3px;
    padding: 1px 6px;
    margin-left: 4px;
}

/* Preset Bar */
.uio-preset-bar {
    padding: 5px 12px 6px;
}

.uio-section-label {
    font-size: 11px;
    font-weight: 600;
    color: #a1a1aa;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.uio-chevron {
    font-size: 10px;
    color: #71717a;
    margin-left: 4px;
}

.uio-preset-content {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.uio-select {
    background: #27272a;
    color: #e4e4e7;
    border: 1px solid #3f3f46;
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 11px;
    font-family: inherit;
    min-width: 140px;
    pointer-events: none;
    appearance: none;
}

.uio-preset-buttons {
    display: flex;
    gap: 3px;
}

.uio-small-btn {
    font-size: 10px;
    color: #a1a1aa;
    background: #27272a;
    border: 1px solid #3f3f46;
    border-radius: 3px;
    padding: 2px 6px;
}

/* ============================================================================
   Module Chain
   ============================================================================ */

.uio-module-chain {
    padding: 12px;
    outline-offset: 0px;
}

.uio-modules-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

/* Individual Module Block */
.uio-module {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    min-height: 68px;
    padding: 6px 8px;
    background: #1c1c1f;
    border: 1.5px solid #3f3f46;
    border-radius: 6px;
    gap: 3px;
    position: relative;
    outline-offset: 2px;
}

.uio-module-fixed {
    border-color: rgba(255, 255, 255, 0.15);
}

/* Default module block state - subtle accent border */
.uio-module-eq {
    border-color: var(--module-eq-line);
}

.uio-module-mb {
    border-color: var(--module-mb-line);
}

.uio-module-comp {
    border-color: var(--module-comp-line);
}

.uio-module-lim {
    border-color: var(--module-lim-line);
}

/* Hover (non-active): full alpha border, lift */
.uio-module.uio-module-eq:not(.uio-module-active):hover {
    border-color: var(--module-eq);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--module-eq-glow);
}
.uio-module.uio-module-mb:not(.uio-module-active):hover {
    border-color: var(--module-mb);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--module-mb-glow);
}
.uio-module.uio-module-comp:not(.uio-module-active):hover {
    border-color: var(--module-comp);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--module-comp-glow);
}
.uio-module.uio-module-lim:not(.uio-module-active):hover {
    border-color: var(--module-lim);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px var(--module-lim-glow);
}
.uio-module.uio-module-fixed:not(.uio-module-active):hover {
    border-color: var(--module-input);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(224, 224, 232, 0.18);
}

/* Active state - lifted, glow, filled bg (per-module color) */
.uio-module-active {
    transform: translateY(-2px);
}
.uio-module.uio-module-eq.uio-module-active {
    border-color: var(--module-eq);
    background: var(--module-eq-soft);
    box-shadow: 0 0 16px var(--module-eq-glow);
}
.uio-module.uio-module-mb.uio-module-active {
    border-color: var(--module-mb);
    background: var(--module-mb-soft);
    box-shadow: 0 0 16px var(--module-mb-glow);
}
.uio-module.uio-module-comp.uio-module-active {
    border-color: var(--module-comp);
    background: var(--module-comp-soft);
    box-shadow: 0 0 16px var(--module-comp-glow);
}
.uio-module.uio-module-lim.uio-module-active {
    border-color: var(--module-lim);
    background: var(--module-lim-soft);
    box-shadow: 0 0 16px var(--module-lim-glow);
}
.uio-module.uio-module-fixed.uio-module-active {
    border-color: var(--module-input);
    background: var(--module-input-soft);
    box-shadow: 0 0 16px rgba(224, 224, 232, 0.25);
}

.uio-module-bypassed {
    opacity: 0.5;
}

.uio-module-bypassed .uio-module-name {
    text-decoration: line-through;
    color: #a1a1aa;
}

.uio-module-bypassed .uio-bypass-btn {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.uio-module-bypassed:hover {
    opacity: 0.7;
}

.uio-module-header {
    display: flex;
    align-items: center;
    gap: 4px;
}

.uio-module-name {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: #fafafa;
}

.uio-module-indicator {
    font-size: 9px;
    color: #71717a;
}

.uio-module-value {
    font-size: 10px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #a1a1aa;
}

/* Bypass Button */
.uio-bypass-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    font-size: 12px;
    line-height: 1;
}

.uio-bypass-active {
    color: #22c55e;
}

.uio-bypass-off {
    color: #ef4444;
}

/* Drag Handle */
.uio-drag-handle {
    position: absolute;
    top: 2px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 8px;
    color: #52525b;
    letter-spacing: 1px;
}

/* Mini Meters */
.uio-mini-meter {
    display: flex;
    align-items: center;
    gap: 4px;
    width: 100%;
    max-width: 56px;
}

.uio-mini-meter-bar {
    height: 4px;
    border-radius: 2px;
    background: var(--module-mb);
    flex: 1;
}

.uio-mini-meter-comp {
    background: var(--module-comp);
}

.uio-mini-meter-lim {
    background: var(--module-lim);
}

.uio-mini-meter-value {
    font-size: 9px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #71717a;
}

/* Bypass Arc */
.uio-bypass-arc {
    position: absolute;
    top: -10px;
    left: -18px;
    right: -18px;
    height: 12px;
    pointer-events: none;
}

/* Connectors */
.uio-connector {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    color: #52525b;
    font-size: 14px;
    flex-shrink: 0;
}

.uio-connector-eq { color: var(--module-eq); opacity: 0.75; }
.uio-connector-mb { color: var(--module-mb); opacity: 0.75; }
.uio-connector-comp { color: var(--module-comp); opacity: 0.75; }
.uio-connector-lim { color: var(--module-lim); opacity: 0.75; }

/* Rotary Knob */
.uio-knob {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(145deg, #2a2a2e, #1a1a1d);
    border: 1.5px solid #3f3f46;
    position: relative;
}

.uio-knob-indicator {
    position: absolute;
    top: 3px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 8px;
    background: #a1a1aa;
    border-radius: 1px;
}

.uio-knob-sm {
    width: 22px;
    height: 22px;
}

.uio-knob-sm .uio-knob-indicator {
    top: 2px;
    height: 6px;
}

/* ============================================================================
   Parameter Panel
   ============================================================================ */

.uio-param-panel {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: #141416;
    outline-offset: 0px;
}

.uio-param-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    flex-wrap: wrap;
}

.uio-param-select {
    font-size: 10px;
    color: #e4e4e7;
    background: #27272a;
    border: 1px solid #3f3f46;
    border-radius: 3px;
    padding: 2px 8px;
}

.uio-param-divider {
    width: 1px;
    height: 16px;
    background: #3f3f46;
    margin: 0 2px;
}

.uio-param-toggle {
    font-size: 10px;
    color: #71717a;
    background: #1c1c1f;
    border: 1px solid #3f3f46;
    border-radius: 3px;
    padding: 2px 6px;
}

.uio-param-toggle-on {
    color: var(--module-eq);
    border-color: var(--module-eq-line);
    background: var(--module-eq-soft);
}

.uio-cursor-readout {
    margin-left: auto;
    font-size: 10px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #52525b;
}

/* ============================================================================
   Canvas Area
   ============================================================================ */

.uio-canvas-area {
    background: #0a0a0c;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    outline-offset: 0px;
    /* Explicit height is required for the child .uio-canvas-wrapper (height:100%)
       and its absolute-positioned <canvas id="uioMainCanvas"> (height:100%) to
       resolve to a non-zero pixel buffer. With only `min-height`, the wrapper's
       `height: 100%` resolves to `auto`, collapsing the canvas to 0px tall and
       producing a 0×N drawing buffer — meters render (separate DOM), but the
       spectrum/EQ/MB/COMP canvas draws nothing. Matches popup's 220px canvas. */
    height: 220px;
    position: relative;
}

.uio-canvas-content {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.uio-spectrum {
    position: relative;
    width: 100%;
    height: 100%;
}

.uio-spectrum-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.uio-spectrum-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.uio-eq-curve {
    fill: none;
    stroke: var(--module-eq);
    stroke-width: 2;
    opacity: 0.85;
}

.uio-band-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--module-eq);
    border: 2px solid #0a0a0c;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 2;
}

.uio-band-dot-active {
    width: 14px;
    height: 14px;
    background: #fafafa;
    border-color: var(--module-eq);
    border-width: 2.5px;
    box-shadow: 0 0 6px var(--module-eq-glow);
}

/* Frequency & dB labels */
.uio-freq-label {
    position: absolute;
    bottom: 4px;
    font-size: 9px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #3f3f46;
    transform: translateX(-50%);
    pointer-events: none;
}

.uio-db-label {
    position: absolute;
    left: 4px;
    font-size: 9px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #3f3f46;
    transform: translateY(-50%);
    pointer-events: none;
}

.uio-grid-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.04);
    pointer-events: none;
}

/* ============================================================================
   Floating Panel (EQ Band)
   ============================================================================ */

.uio-floating-panel {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 160px;
    background: #1c1c1f;
    border: 1px solid var(--module-eq-line);
    border-radius: 6px;
    padding: 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    z-index: 5;
}

.uio-fp-header {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 11px;
    font-weight: 600;
}

.uio-fp-enable {
    color: var(--module-eq);
    font-size: 10px;
}

.uio-fp-title {
    color: #fafafa;
    flex: 1;
}

.uio-fp-solo {
    font-size: 10px;
    font-weight: 700;
    color: #52525b;
    background: #27272a;
    border-radius: 2px;
    padding: 0 3px;
}

.uio-fp-delete {
    font-size: 14px;
    color: #52525b;
    cursor: pointer;
}

.uio-fp-knobs {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 8px 6px 4px;
}

.uio-fp-knob-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.uio-fp-knob-label {
    font-size: 8px;
    font-weight: 700;
    color: #52525b;
    letter-spacing: 0.05em;
}

.uio-fp-knob-value {
    font-size: 9px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #a1a1aa;
}

.uio-fp-type {
    padding: 4px 8px 6px;
    text-align: center;
}

.uio-fp-type-select {
    font-size: 10px;
    color: #a1a1aa;
    background: #27272a;
    border: 1px solid #3f3f46;
    border-radius: 3px;
    padding: 1px 10px;
}

/* ============================================================================
   Hint Bar
   ============================================================================ */

.uio-hint-bar {
    padding: 3px 12px;
    background: #141416;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    outline-offset: 0px;
}

.uio-hint-text {
    font-size: 10px;
    color: #52525b;
}

/* ============================================================================
   Global Meter Section
   ============================================================================ */

.uio-meters-section {
    background: #111113;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 6px 12px 8px;
    outline-offset: 0px;
}

.uio-meter-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.uio-meter-row:last-child {
    margin-bottom: 0;
}

.uio-meter-item {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 1;
    outline-offset: 1px;
}

.uio-meter-item-sm {
    flex: 0.7;
}

.uio-meter-item-wide {
    flex: 2;
}

.uio-meter-label {
    font-size: 9px;
    font-weight: 700;
    color: #71717a;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    min-width: 28px;
}

.uio-meter-bar-bg {
    flex: 1;
    height: 8px;
    background: #1c1c1f;
    border-radius: 2px;
    position: relative;
    overflow: hidden;
    min-width: 40px;
}

.uio-meter-bar-wide {
    min-width: 80px;
}

.uio-meter-bar {
    height: 100%;
    border-radius: 2px;
    transition: width 200ms ease;
}

.uio-meter-bar-green {
    background: linear-gradient(90deg, #22c55e, #84cc16);
}

.uio-meter-bar-cyan {
    background: linear-gradient(90deg, #06b6d4, #22d3ee);
}

.uio-meter-bar-purple {
    background: linear-gradient(90deg, #7c3aed, #a855f7);
}

.uio-meter-bar-orange {
    background: linear-gradient(90deg, #ea580c, #f97316);
}

.uio-meter-bar-red {
    background: linear-gradient(90deg, #dc2626, #ef4444);
}

.uio-meter-bipolar {
    position: relative;
}

.uio-meter-center-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #3f3f46;
    z-index: 1;
}

.uio-meter-peak {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #fafafa;
    opacity: 0.7;
}

.uio-meter-ceiling {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    border-left: 1px dashed #ef4444;
    opacity: 0.6;
}

.uio-meter-value {
    font-size: 10px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #71717a;
    min-width: 32px;
    text-align: right;
}

/* LUFS Display */
.uio-lufs-display {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1.5;
}

.uio-lufs-item {
    display: flex;
    align-items: center;
    gap: 3px;
}

.uio-lufs-label {
    font-size: 9px;
    font-weight: 700;
    color: #52525b;
}

.uio-lufs-value {
    font-size: 10px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #a1a1aa;
}

/* ============================================================================
   L/R Stereo Meter Mockup
   ============================================================================ */

.uio-meter-bar-stereo-mock {
    display: flex;
    flex-direction: column;
    gap: 1px;
    height: auto;
    padding: 1px 0;
    overflow: visible;
}

.uio-meter-bar-lr-mock {
    height: 3px;
    position: relative;
    border-radius: 1px;
    overflow: hidden;
}

.uio-meter-bar-stereo-mock .uio-meter-bar {
    height: 100%;
}

.uio-meter-bar-stereo-mock .uio-meter-peak {
    height: 3px;
}

.uio-meter-bar-stereo-mock .uio-meter-ceiling {
    position: absolute;
    top: 0;
    bottom: 0;
    height: auto;
}

/* ============================================================================
   Preset Popover Mockup
   ============================================================================ */

.uio-preset-popover {
    padding: 5px 12px 6px;
    flex: 1;
}

/* ============================================================================
   Settings Gear Mockup
   ============================================================================ */

.uio-settings-gear {
    display: flex;
    align-items: center;
    padding: 5px 8px;
}

/* ============================================================================
   LUFS Stack Mockup
   ============================================================================ */

.uio-lufs-stack {
    background: #111113;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 6px 12px 8px;
    outline-offset: 0px;
}

.uio-lufs-stack-header {
    display: flex;
    align-items: center;
    margin-bottom: 6px;
}

.uio-lufs-stack-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.uio-lufs-sub {
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.uio-lufs-bar-row {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 3px;
}

.uio-lufs-histogram-mock {
    height: 48px;
    margin-top: 4px;
    background: #0a0a0c;
    border-radius: 3px;
    position: relative;
    overflow: hidden;
}

.uio-lufs-hist-canvas {
    width: 100%;
    height: 100%;
}

/* ============================================================================
   Color Legend
   ============================================================================ */

.uio-legend {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.uio-legend h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.uio-legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.uio-legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.uio-legend-swatch {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
}

/* ============================================================================
   Responsive
   ============================================================================ */

@media (max-width: 768px) {
    .uio-modules-row {
        flex-wrap: wrap;
        gap: 4px;
    }

    .uio-connector {
        width: 16px;
        font-size: 10px;
    }

    .uio-module {
        min-width: 56px;
        min-height: 56px;
        padding: 4px 6px;
    }

    .uio-module-name {
        font-size: 10px;
    }

    .uio-floating-panel {
        right: 4px;
        width: 140px;
    }

    .uio-canvas-content {
        height: 160px;
    }

    .uio-info-panel {
        position: static;
    }

    .uio-meter-row {
        flex-wrap: wrap;
    }

    .uio-param-row {
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .uio-modules-row {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
    }

    .uio-legend-items {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ============================================================================
   Tier Badge & License Panel Mockups
   ============================================================================ */

/* ── Tier Badge Mockup (ported from popup.css .tier-badge.tier-professional) ── */
.uio-tier-badge {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    padding: 3px 6px;
    border-radius: 3px;
    text-transform: uppercase;
    /* Default (Free) tier — gray */
    background: rgba(107, 114, 128, 0.2);
    color: #9a9aae;
    border: 1px solid rgba(107, 114, 128, 0.3);
    margin-left: var(--spacing-sm);
    cursor: pointer;
    line-height: 1.2;
    display: inline-block;
}

/* Professional tier — purple (matches popup.css line 287-291) */
.uio-tier-badge.uio-tier-pro {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* Enthusiast tier — orange */
.uio-tier-badge.uio-tier-enthusiast {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* ── License Panel Mockup ── */
.uio-license-panel-mock {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.uio-license-compact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.uio-license-input-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.uio-license-input {
    flex: 1;
    background: var(--color-bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    padding: 4px 8px;
    font-size: var(--font-size-xs);
    font-family: inherit;
}

/* ============================================================================
   Parameter Panel Variants (per-module param rows)
   - Only the variant matching the active module is displayed.
   - Driven by sibling selector from .uio-canvas-wrapper[data-active-module=...]
     OR by .uio-active class toggled by JS.
   ============================================================================ */

.uio-param-row[data-for-module] {
    display: none;
}

.uio-param-row.uio-active {
    display: flex;
}

/* Per-module accent underline on param row */
.uio-param-row[data-for-module="eq"] {
    border-top: 2px solid var(--module-eq-line);
}
.uio-param-row[data-for-module="multiband"] {
    border-top: 2px solid var(--module-mb-line);
}
.uio-param-row[data-for-module="singleComp"] {
    border-top: 2px solid var(--module-comp-line);
}
.uio-param-row[data-for-module="output"] {
    border-top: 2px solid var(--module-lim-line);
}

/* ============================================================================
   Canvas Wrapper + Floating Band Panels
   ============================================================================ */

.uio-canvas-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

#uioMainCanvas,
.uio-main-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* Canvas subzones (per-module overlays) - only show matching one */
.uio-canvas-subzones {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.uio-canvas-subzones > * {
    pointer-events: auto;
}

.uio-canvas-wrapper[data-active-module="eq"] .uio-canvas-subzones[data-for-module="eq"],
.uio-canvas-wrapper[data-active-module="multiband"] .uio-canvas-subzones[data-for-module="multiband"],
.uio-canvas-wrapper[data-active-module="singleComp"] .uio-canvas-subzones[data-for-module="singleComp"],
.uio-canvas-wrapper[data-active-module="output"] .uio-canvas-subzones[data-for-module="output"] {
    display: block;
}

/* Floating band panels: default hidden, shown only for matching module */
#uioEqBandPanel,
#uioMbBandPanel {
    display: none;
}

.uio-canvas-wrapper[data-active-module="eq"] #uioEqBandPanel {
    display: block;
}

.uio-canvas-wrapper[data-active-module="multiband"] #uioMbBandPanel {
    display: block;
}

/* EQ band panel - cyan accent (mirrors popup .eq-band-panel) */
.uio-eq-band-panel {
    border-color: var(--module-eq-line);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5),
                0 0 0 1px var(--module-eq-line);
}

.uio-eq-band-panel .uio-fp-enable {
    color: var(--module-eq);
}

/* MB band panel - purple accent (mirrors popup .mb-band-panel) */
.uio-mb-band-panel {
    border-color: var(--module-mb-line);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5),
                0 0 0 1px var(--module-mb-line);
}

.uio-mb-band-panel .uio-fp-enable {
    color: var(--module-mb);
}

/* ============================================================================
   Bypass Arc Overlay (ported from popup.css:4273-4314)
   Pulsing dashed red arc shown above bypassed module block.
   ============================================================================ */

.uio-bypass-arc-overlay {
    position: absolute;
    bottom: -10px;
    left: -16px;
    width: calc(100% + 32px);
    height: 40px;
    pointer-events: none;
    z-index: -1;
    opacity: 0;
    transition: opacity 150ms ease;
    overflow: visible;
}

.uio-module[data-bypassed="true"] .uio-bypass-arc-overlay,
.uio-module-bypassed .uio-bypass-arc-overlay {
    opacity: 1;
}

.uio-bypass-arc-path {
    stroke: #ef4444;
    stroke-width: 2.5;
    stroke-dasharray: 8 5;
    stroke-linecap: round;
    fill: none;
    animation: none;
}

.uio-module[data-bypassed="true"] .uio-bypass-arc-path,
.uio-module-bypassed .uio-bypass-arc-path {
    animation: uio-bypass-arc-flow 1.2s linear infinite;
}

.uio-bypass-arc-arrow {
    fill: #ef4444;
}

@keyframes uio-bypass-arc-flow {
    0%   { stroke-dashoffset: 0; }
    100% { stroke-dashoffset: -26; }
}

/* ============================================================================
   MB Floating Band Panel — matches popup.css .mb-panel-header/-body
   ============================================================================ */

#uioMbBandPanel.uio-mb-band-panel {
    width: 210px;
}

.uio-mb-fp-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.uio-mb-fp-bypass {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    color: var(--module-mb);
    cursor: pointer;
    flex-shrink: 0;
}

.uio-mb-fp-title {
    flex: 1;
    text-align: left;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: #fafafa;
    text-transform: uppercase;
}

.uio-mb-fp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    font-size: 10px;
    font-weight: 700;
    color: #71717a;
    background: #27272a;
    border-radius: 2px;
    flex-shrink: 0;
}

.uio-mb-fp-btn:hover {
    color: var(--module-mb);
}

.uio-fp-sliders {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 4px 8px 6px;
}

.uio-fp-slider-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.uio-fp-slider-label {
    font-size: 9px;
    font-weight: 700;
    color: #71717a;
    letter-spacing: 0.04em;
    min-width: 30px;
}

.uio-fp-slider {
    flex: 1;
    height: 10px;
    -webkit-appearance: none;
    appearance: none;
    background: #27272a;
    border-radius: 2px;
    outline: none;
    pointer-events: none;
}

.uio-fp-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    background: var(--module-mb);
    border-radius: 50%;
}

.uio-fp-slider-value {
    font-size: 9px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #a1a1aa;
    min-width: 42px;
    text-align: right;
}

/* ============================================================================
   Param row inline controls + hint
   ============================================================================ */

.uio-param-control-inline {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.uio-param-inline-label {
    font-size: 10px;
    color: #a1a1aa;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.uio-param-slider {
    width: 70px;
    height: 10px;
    -webkit-appearance: none;
    appearance: none;
    background: #27272a;
    border-radius: 2px;
    outline: none;
    pointer-events: none;
}

.uio-param-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    background: #e4e4e7;
    border-radius: 50%;
}

.uio-param-value {
    font-size: 10px;
    font-family: 'SF Mono', 'Monaco', 'Fira Code', monospace;
    color: #a1a1aa;
    min-width: 40px;
}

.uio-param-hint {
    font-size: 10px;
    font-style: italic;
    color: #52525b;
    margin-left: auto;
}

.uio-param-hint + .uio-cursor-readout {
    margin-left: 6px;
}

/* Subzone visual styles (for MB region overlays and crossovers) */
.uio-subzone {
    position: absolute;
    box-sizing: border-box;
}

.uio-subzone-band-region {
    background: transparent;
    border-left: 1px dashed rgba(255, 255, 255, 0.08);
    border-right: 1px dashed rgba(255, 255, 255, 0.08);
}

.uio-mb-region-low     { background: rgba(100, 140, 220, 0.06); }
.uio-mb-region-lowmid  { background: rgba(100, 200, 140, 0.06); }
.uio-mb-region-mid     { background: rgba(220, 180, 100, 0.06); }
.uio-mb-region-high    { background: rgba(220, 100, 140, 0.06); }

.uio-subzone-crossover {
    border-left: 1px dashed rgba(255, 255, 255, 0.4);
}