/* ==========================================================
   Primordial Grid — App Styles
   All design tokens provided by reality-reprojection.css (linked before this file).
   This file contains ONLY project-specific layout, component overrides, and
   app-specific styles not covered by the RR bundle.
   ========================================================== */

/* Dark mode: brighter, more blue-tinted ground scale */
[data-polarity="dark"] {
    --ground-0: #12131a;
    --ground-5: #181920;
    --ground-10: #1e1f28;
    --ground-15: #262730;
    --ground-20: #2e303c;
    --ground-30: #434558;
}

body {
    font-family: var(--font-technical);
    background: var(--surface-ground);
    color: var(--foreground-default);
    height: 100vh;
    overflow: hidden;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: relative;
}

/* Toolbar — Frost Header */
#toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-lg);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    gap: var(--space-md);
    flex-shrink: 0;
    z-index: 20;
    height: 48px;
}

.toolbar-left, .toolbar-center, .toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.toolbar-center {
    gap: var(--space-md);
}

.playback-controls {
    display: flex;
    gap: 2px;
}

.speed-control {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    white-space: nowrap;
}

.speed-control input[type="range"] {
    width: 100px;
    vertical-align: middle;
    accent-color: var(--signature);
}

.mode-buttons {
    display: flex;
    gap: 2px;
}

.mode-btn {
    background: var(--surface-overlay);
    color: var(--foreground-subtle);
    border: 1px solid var(--border-default);
    padding: 4px 12px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

.mode-btn:hover {
    transform: translateY(-1px);
    background: var(--border-default);
}

.mode-btn.active {
    background: var(--signature-dim);
    color: var(--signature);
    border-color: var(--signature);
}

.ctrl-btn {
    background: var(--surface-overlay);
    color: var(--foreground-default);
    border: 1px solid var(--border-default);
    padding: 4px 8px;
    cursor: pointer;
    font-size: 12px;
    font-family: var(--font-technical);
    min-width: 28px;
    text-align: center;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

.ctrl-btn:hover {
    background: var(--border-default);
    transform: translateY(-1px);
}

.ctrl-btn.active {
    background: var(--signature-dim);
    color: var(--signature);
    border-color: var(--signature);
}

#sim-status {
    font-size: 11px;
    font-weight: bold;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#sim-status.running {
    color: var(--color-success);
    background: var(--color-success-subtle);
}

#sim-status.paused {
    color: var(--color-warning);
    background: var(--color-warning-subtle);
}

#sim-status.disconnected {
    color: var(--color-critical);
    background: var(--color-critical-subtle);
}

/* Mode-aware playback buttons */
#toolbar[data-mode="live"] .replay-only {
    display: none;
}
#toolbar[data-mode="replay"] .live-only {
    display: none;
}

/* Gen/Pop counters — prominent */
.gen-pop-counter {
    font-family: var(--font-declaration);
    font-size: 20px;
    color: var(--signature);
    letter-spacing: 0.02em;
    line-height: 1;
}

/* Legacy fallback (old selectors) */
#gen-counter, #pop-counter {
    font-family: var(--font-declaration);
    font-size: 20px;
    color: var(--signature);
    letter-spacing: 0.02em;
}

/* Theme icon button */
.theme-icon-btn {
    font-size: 16px;
    min-width: 32px;
    padding: 2px 6px;
}

select, input {
    background: var(--surface-overlay);
    color: var(--foreground-default);
    border: 1px solid var(--border-default);
    padding: 4px 8px;
    font-family: inherit;
    font-size: 12px;
}

label {
    font-size: 12px;
    color: var(--foreground-subtle);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Main content */
#main {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

#canvas-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-ground);
    position: relative;
    overflow: hidden;
}

#btn-exit-fullscreen {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 90;
    display: none;
}

#grid-canvas {
    image-rendering: pixelated;
    cursor: crosshair;
    max-width: none;
}

#app.fullscreen #toolbar,
#app.fullscreen #species-panel,
#app.fullscreen #side-panel,
#app.fullscreen #overlay-bar {
    display: none;
}

#app.bottom-collapsed #overlay-bar {
    display: none;
}

#app.fullscreen #main {
    height: 100vh;
}

#app.fullscreen #canvas-container {
    flex: 1 1 auto;
}

#app.fullscreen #btn-exit-fullscreen {
    display: inline-flex;
}

/* Species panel */
#species-panel {
    width: 240px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-default);
    overflow: visible;
    flex-shrink: 0;
}

#species-list {
    flex: 1;
    overflow-y: auto;
    max-height: 300px;
}

.species-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 12px;
    border-bottom: 1px solid var(--border-default);
    transition: all var(--dur-standard) var(--ease-hourglass);
}

.species-row:hover {
    background: var(--surface-raised);
}

.species-row.selected {
    background: var(--signature-dim);
    border-left: 3px solid var(--signature);
}

.species-swatch {
    width: 14px;
    height: 14px;
    border-radius: var(--radius-xs);
    flex-shrink: 0;
}

.species-count {
    margin-left: auto;
    color: var(--foreground-subtle);
}

.species-pct {
    color: var(--foreground-subtle);
    font-size: 10px;
    width: 36px;
    text-align: right;
}

#species-detail {
    border-top: 1px solid var(--border-default);
    padding-top: 8px;
    margin-top: 4px;
}

#species-detail-header {
    margin-bottom: 6px;
}

#species-detail-genome {
    font-size: 10px;
    word-break: break-all;
    color: var(--foreground-subtle);
    padding: 4px;
    background: var(--surface-raised);
    border-radius: var(--radius-xs);
    max-height: 60px;
    overflow-y: auto;
    margin-bottom: 6px;
}

#species-detail-brain {
    font-size: 11px;
    max-height: 200px;
    overflow-y: auto;
}

.species-more {
    padding: 4px 8px;
    font-size: 11px;
    color: var(--foreground-subtle);
    font-style: italic;
}

/* Side panel */
#side-panel {
    width: 360px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border-default);
    overflow: visible;
    flex-shrink: 0;
}

.panel-scroll {
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.panel {
    padding: 12px;
    border-bottom: 1px solid var(--border-default);
}

.panel h3 {
    font-size: 13px;
    color: var(--foreground-subtle);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    font-size: 13px;
}

.stat-row-section {
    margin-top: 6px;
    border-top: 1px solid var(--border-default);
    padding-top: 8px;
}

.stat-label {
    color: var(--foreground-subtle);
}

.stat-value {
    color: var(--foreground-default);
    font-weight: bold;
}

/* Sparklines */
#survival-sparkline, #diversity-sparkline, #mutation-sparkline, #signal-histogram {
    width: 100%;
    background: var(--surface-recessed);
    border-radius: var(--radius-xs);
}

.sparkline-container {
    overflow: hidden;
    transition: max-height 0.25s ease;
    max-height: 120px;
}

.sparkline-container.collapsed {
    max-height: 0;
}

.sparkline-container canvas {
    display: block;
    width: 100%;
}

.graph-toggle {
    margin-left: auto;
    font-size: 10px;
    padding: 1px 4px;
    min-width: 18px;
    color: var(--foreground-subtle);
    border: none;
    background: transparent;
    cursor: pointer;
    transition: transform var(--dur-standard) var(--ease-hourglass);
}

.graph-toggle.collapsed {
    transform: rotate(-90deg);
}

/* Parameters panel — grouped sections */
.param-group-header {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--foreground-subtle);
    font-size: 10px;
    margin-top: var(--space-sm);
    margin-bottom: 2px;
    padding-bottom: 2px;
    border-bottom: 1px solid var(--border-default);
}

.param-group-header:first-of-type {
    margin-top: 0;
}

.param-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3px 0;
    gap: var(--space-sm);
}

.param-label {
    font-size: 12px;
    color: var(--foreground-subtle);
    white-space: nowrap;
    flex-shrink: 0;
}

.param-input {
    width: 80px;
    text-align: right;
    flex-shrink: 0;
}

.param-apply-btn {
    width: 100%;
    margin-top: var(--space-sm);
}

/* Parameter status */
#param-status {
    margin-top: 6px;
    font-size: 11px;
    line-height: 1.5;
    min-height: 0;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

#param-status:empty {
    display: none;
}

#param-status .param-dirty {
    color: var(--color-warning);
    padding: 4px 6px;
    background: var(--color-warning-subtle);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--color-warning);
}

#param-status .param-applied {
    color: var(--color-success);
    padding: 4px 6px;
    background: var(--color-success-subtle);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--color-success);
}

#param-status .param-restart-needed {
    color: var(--color-critical);
    padding: 4px 6px;
    margin-top: 4px;
    background: var(--color-critical-subtle);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--color-critical);
}

#param-status .param-live-repop {
    color: var(--signature);
    padding: 4px 6px;
    margin-top: 4px;
    background: var(--signature-dim);
    border-radius: var(--radius-sm);
    border-left: 2px solid var(--signature);
}

#param-status .param-restart-btn {
    background: var(--color-critical);
    color: var(--foreground-on-accent);
    border: 1px solid var(--color-critical);
    padding: 2px 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    border-radius: var(--radius-sm);
    margin-left: 6px;
    font-weight: bold;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

#param-status .param-restart-btn:hover {
    background: var(--color-critical-bold);
    border-color: var(--color-critical-bold);
    transform: translateY(-1px);
}

#param-status .param-active-values {
    color: var(--foreground-subtle);
    padding: 4px 6px;
    margin-top: 4px;
    background: var(--surface-raised);
    border-radius: var(--radius-sm);
    font-size: 10px;
}

.param-input.dirty {
    border-color: var(--color-warning) !important;
    box-shadow: 0 0 0 1px var(--color-warning-subtle);
}

/* Agent feed */
#agent-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 200px;
}

#agent-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 8px;
}

.agent-tab {
    background: var(--surface-raised);
    color: var(--foreground-subtle);
    border: 1px solid var(--border-default);
    padding: 2px 10px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

.agent-tab.active {
    color: var(--signature);
    border-color: var(--signature);
}

#agent-feed {
    flex: 1;
    overflow-y: auto;
    font-size: 12px;
    line-height: 1.5;
    min-height: 280px;
    max-height: 46vh;
    padding-right: 2px;
}

#agent-panel {
    display: flex;
    flex-direction: column;
    min-height: 380px;
}

.agent-feed-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}

#agent-feed.timeline {
    position: relative;
    padding-left: 16px;
}

#agent-feed.timeline::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: color-mix(in srgb, var(--signature) 55%, transparent);
}

#agent-feed.timeline .field-note {
    position: relative;
}

#agent-feed.timeline .field-note::before {
    content: "";
    position: absolute;
    left: -15px;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: var(--signature);
    border: 1px solid color-mix(in srgb, var(--signature) 45%, var(--surface-raised));
}

.field-note {
    padding: 8px;
    margin-bottom: 4px;
    background: var(--surface-raised);
    border-left: 2px solid var(--signature);
    border-radius: var(--radius-xs);
}

.field-note .note-header {
    color: var(--foreground-subtle);
    font-size: 11px;
    margin-bottom: 4px;
}

.field-note .note-text {
    color: var(--foreground-default);
    overflow-wrap: anywhere;
}

.field-note--heartbeat {
    background: color-mix(in srgb, var(--surface-raised) 78%, var(--color-success) 22%);
}

.field-note--action {
    background: color-mix(in srgb, var(--surface-raised) 78%, var(--signature) 22%);
}

/* Footer — Frost Toolbar */
#overlay-bar {
    position: absolute;
    bottom: var(--space-sm);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: var(--space-md);
    z-index: 20;
    pointer-events: auto;
}

.footer-card {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-card-label {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--foreground-subtle);
    font-size: 10px;
    margin-bottom: 2px;
}

.paint-header {
    justify-content: space-between;
}
.paint-header .footer-card-label {
    margin-bottom: 0;
}

/* Run selector hidden in live mode — only meaningful in replay */
#toolbar[data-mode="live"] #run-selector {
    display: none;
}

.footer-card-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-card-row select {
    font-size: 11px;
}

.footer-card-row input[type="range"] {
    width: 60px;
    accent-color: var(--signature);
    vertical-align: middle;
}

.footer-card-checks {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 4px var(--space-md);
}

.footer-card-checks label {
    cursor: pointer;
    white-space: nowrap;
}

.footer-card-checks input[type="checkbox"] {
    accent-color: var(--signature);
}

/* Faction counts */
#faction-counts {
    font-size: 12px;
}

.faction-row {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--surface-ground);
}

::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: var(--radius-sm);
}

/* Paint controls */
#paint-size, #paint-intensity {
    accent-color: var(--signature);
}

#canvas-container.painting {
    cursor: none;
}

/* Brush preview cursor */
#brush-cursor {
    display: none;
    position: absolute;
    pointer-events: none;
    border: 2px solid rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5);
    transform: translate(-50%, -50%);
    z-index: 5;
}

#canvas-container.painting #brush-cursor {
    display: block;
}

/* Snapshots panel */
.snapshot-list {
    max-height: 200px;
    overflow-y: auto;
}

.snapshot-list-empty {
    color: var(--foreground-subtle);
    font-size: 12px;
    padding: 8px 0;
    font-style: italic;
}

.snapshot-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 12px;
    border-bottom: 1px solid var(--border-default);
    gap: 6px;
}

.snapshot-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
    flex: 1;
}

.snapshot-gen {
    color: var(--foreground-default);
    font-weight: bold;
    font-size: 12px;
}

.snapshot-run {
    color: var(--foreground-subtle);
    font-size: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.snapshot-size {
    color: var(--foreground-subtle);
    font-size: 10px;
}

.snapshot-load-btn {
    background: var(--signature-dim);
    color: var(--signature);
    border: 1px solid var(--signature);
    padding: 2px 8px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    flex-shrink: 0;
    transition: all var(--dur-standard) var(--ease-hourglass);
}

.snapshot-load-btn:hover {
    background: var(--signature);
    color: var(--foreground-on-accent);
    transform: translateY(-1px);
}

.screenshot-list {
    max-height: 220px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 6px;
}

.screenshot-empty {
    color: var(--foreground-subtle);
    font-size: 12px;
    padding: 8px 0;
    font-style: italic;
}

.screenshot-row {
    display: grid;
    grid-template-columns: 72px 1fr;
    gap: 8px;
    align-items: center;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xs);
    padding: 6px;
    background: var(--surface-recessed);
}

.screenshot-thumb {
    width: 72px;
    height: 50px;
    object-fit: cover;
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-default);
    background: var(--surface-ground);
}

.screenshot-meta {
    min-width: 0;
}

.screenshot-gen {
    color: var(--foreground-default);
    font-weight: 600;
    font-size: 12px;
}

.screenshot-file {
    color: var(--foreground-subtle);
    font-size: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#screenshot-viewer {
    position: fixed;
    inset: 0;
    z-index: 1200;
}

#screenshot-viewer-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 16, 0.76);
}

#screenshot-viewer-panel {
    position: relative;
    width: min(94vw, 1400px);
    height: min(92vh, 980px);
    margin: 3vh auto 0;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
}

#screenshot-viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    border-bottom: 1px solid var(--border-default);
}

#screenshot-viewer-scroll {
    overflow: auto;
    padding: 12px;
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
}

#screenshot-viewer-image {
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-default);
    background: #0f1118;
}

/* Edge Tab Panel Toggles */
.edge-tab {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 80px;
    background: var(--surface-overlay);
    border: 1px solid var(--border-default);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background var(--dur-standard) var(--ease-hourglass);
}

.edge-tab:hover {
    background: var(--surface-raised);
}

.edge-tab-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-technical);
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--foreground-subtle);
    user-select: none;
}

.edge-tab-right {
    right: -21px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    border-left: none;
}

.edge-tab-left {
    left: -21px;
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    border-right: none;
}

#species-panel,
#side-panel {
    position: relative;
    transition: width var(--dur-standard) var(--ease-hourglass),
                padding var(--dur-standard) var(--ease-hourglass);
}

#species-panel.mat-frost-medium,
#side-panel.mat-frost-medium {
    background: color-mix(in srgb, var(--surface-overlay) 84%, transparent);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
}

#species-panel.collapsed {
    width: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    overflow: visible;
    border-right: none;
}

#side-panel.collapsed {
    width: 0 !important;
    min-width: 0 !important;
    padding: 0 !important;
    overflow: visible;
    border-left: none;
}

#species-panel.collapsed > *:not(.edge-tab),
#side-panel.collapsed > *:not(.edge-tab) {
    display: none !important;
}

/* Brain visualization overlay */
#brain-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

#brain-modal {
    background: var(--surface-raised);
    border: 1px solid var(--ground-30);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    width: calc(100vw - 80px);
    height: calc(100vh - 80px);
    max-width: 1400px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}

#brain-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: var(--surface-raised);
    border-bottom: 1px solid var(--border-default);
    flex-shrink: 0;
}

#brain-view-toggle {
    display: flex;
    gap: 4px;
    margin-left: auto;
    margin-right: 8px;
}

#brain-view-toggle .tab {
    padding: 3px 8px;
}

#brain-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

#brain-species-name {
    font-size: 16px;
    font-weight: bold;
    color: var(--foreground-default);
}

#brain-species-info {
    font-size: 12px;
    color: var(--foreground-subtle);
}

#btn-close-brain {
    font-size: 20px;
    padding: 4px 10px;
    line-height: 1;
}

#brain-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

#brain-graph-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

#brain-canvas {
    width: 100%;
    height: 100%;
}

#brain-sidebar {
    width: 340px;
    overflow-y: auto;
    padding: 12px;
    border-left: 1px solid var(--border-default);
    background: var(--surface-raised);
    flex-shrink: 0;
}

#brain-sidebar h3 {
    font-size: 13px;
    color: var(--foreground-subtle);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.gene-bit-row {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-bottom: 3px;
    font-size: 10px;
    font-family: var(--font-technical);
}

.gene-bit-row .bit-seg {
    padding: 2px 3px;
    border-radius: var(--radius-xs);
    text-align: center;
    color: var(--foreground-on-accent);
    font-size: 9px;
    white-space: nowrap;
}

.bit-src-type  { background: var(--color-info-bold);    width: 14px; flex-shrink: 0; }
.bit-src-id    { background: var(--color-info);          width: 52px; flex-shrink: 0; }
.bit-sink-type { background: var(--color-warning-bold);  width: 14px; flex-shrink: 0; }
.bit-sink-id   { background: var(--color-warning);       width: 52px; flex-shrink: 0; }
.bit-weight    { background: var(--ground-30);           width: 64px; flex-shrink: 0; }

.gene-bit-label {
    font-size: 10px;
    color: var(--foreground-subtle);
    margin-left: 6px;
    white-space: nowrap;
}

.gene-table-row {
    display: flex;
    align-items: center;
    padding: 3px 0;
    border-bottom: 1px solid var(--border-default);
    font-size: 11px;
    gap: 6px;
}

.gene-table-row .gene-idx {
    color: var(--foreground-subtle);
    width: 20px;
    text-align: right;
    flex-shrink: 0;
}

.gene-table-row .gene-src {
    color: var(--signature);
    width: 58px;
    flex-shrink: 0;
}

.gene-table-row .gene-arrow {
    color: var(--foreground-subtle);
    flex-shrink: 0;
}

.gene-table-row .gene-sink {
    color: var(--color-success);
    width: 58px;
    flex-shrink: 0;
}

.gene-table-row .gene-weight {
    margin-left: auto;
    font-weight: bold;
    width: 55px;
    text-align: right;
    flex-shrink: 0;
}

/* Observer mode */
.observer-badge {
    font-size: 10px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-warning);
    background: var(--color-warning-subtle);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-warning);
}

.token-input-container {
    display: flex;
    align-items: center;
    gap: 4px;
    position: relative;
}

.token-form {
    display: flex;
    align-items: center;
    gap: 2px;
}

.token-field {
    width: 100px;
    font-size: 11px;
    padding: 3px 6px;
}

.token-submit {
    font-size: 11px;
    padding: 3px 6px;
}

.token-error {
    color: var(--color-critical);
    font-size: 10px;
    position: absolute;
    top: 100%;
    right: 0;
    white-space: nowrap;
    background: var(--surface-raised);
    padding: 2px 6px;
    border: 1px solid var(--color-critical);
    border-radius: var(--radius-sm);
    z-index: 100;
}

#pick-species-bar {
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-default);
}

.pick-species-btn {
    width: 100%;
    text-align: center;
}

.pick-species-btn.active {
    background: var(--signature-dim);
    color: var(--signature);
    border-color: var(--signature);
}

/* Controls panel */
#controls-panel {
    margin-top: auto;
}

.controls-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.controls-grid .btn {
    width: 100%;
    text-align: center;
}

.controls-grid .token-input-container {
    position: relative;
}

.controls-grid .token-input-container .btn {
    width: 100%;
}

.controls-grid .token-form {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 20;
    background: var(--surface-raised);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 4px;
    margin-top: 2px;
}

/* (theme toggle moved to header icon) */

/* Hide number input spinners */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
input[type=number] {
    -moz-appearance: textfield;
}

/* Frost footer cards — override mat-frost-medium to be more translucent */
.footer-card.mat-frost-medium {
    background: rgba(10, 10, 18, 0.55) !important;
}
[data-polarity="light"] .footer-card.mat-frost-medium {
    background: rgba(230, 227, 222, 0.55) !important;
}

/* Toolbar frost — slightly more opaque so it reads over canvas */
#toolbar.mat-frost-medium {
    background: rgba(18, 19, 26, 0.82) !important;
}
[data-polarity="light"] #toolbar.mat-frost-medium {
    background: rgba(240, 238, 234, 0.88) !important;
}

/* Read-only disabled controls */
.read-only .ctrl-btn[disabled],
.read-only .param-input[disabled],
.read-only select[disabled],
.read-only input[type="range"][disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* Resizable panels */
.resize-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 6px;
    cursor: col-resize;
    z-index: 15;
    background: transparent;
    transition: background var(--dur-standard) var(--ease-hourglass);
}

.resize-handle:hover,
.resize-handle.dragging {
    background: var(--signature);
    opacity: 0.5;
}

.resize-handle-right {
    right: 0;
}

.resize-handle-left {
    left: 0;
}

/* ================================================================
   Mobile & Tablet Responsive Styles
   ================================================================ */

/* --- Tablet (≤ 768px): panels become fixed overlay drawers --- */
@media (max-width: 768px) {

    /* Toolbar: hide non-essential items */
    #run-selector     { display: none !important; }
    .mode-buttons     { display: none !important; }
    #btn-toggle-bottom { display: none !important; }
    #btn-fullscreen   { display: none !important; }

    .speed-control input[type="range"] { width: 70px; }

    /* Side panels: leave the layout flow, become fixed drawers */
    #species-panel,
    #side-panel {
        position: fixed !important;
        top: 48px;
        bottom: 0;
        z-index: 50;
        box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
        /* transitions already defined on these selectors */
    }
    #species-panel { left: 0; }
    #side-panel    { right: 0; }

    #species-panel:not(.collapsed) {
        width: min(85vw, 300px) !important;
    }
    #side-panel:not(.collapsed) {
        width: min(90vw, 360px) !important;
    }

    /* Wider edge tabs for finger tap targets */
    .edge-tab {
        width: 28px;
        height: 100px;
    }
    .edge-tab-right { right: -29px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
    .edge-tab-left  { left: -29px;  border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
    .edge-tab-text  { font-size: 8px; }

    /* Hide resize handles — no drag-to-resize on touch */
    .resize-handle { display: none !important; }

    /* Footer bar: stack cards vertically, full-width */
    #overlay-bar {
        flex-direction: column;
        left: var(--space-sm);
        right: var(--space-sm);
        transform: none;
        bottom: var(--space-xs);
        max-width: none;
        align-items: stretch;
    }
    .footer-card-checks {
        grid-template-columns: repeat(2, auto);
        gap: 4px var(--space-sm);
    }

    /* Gen/Pop counters: slightly smaller */
    .gen-pop-counter { font-size: 16px; }

    /* Brain modal: reflow sidebar below canvas on narrow screens */
    #brain-modal {
        width: calc(100vw - 20px);
        height: calc(100vh - 32px);
        max-width: none;
    }
    #brain-content { flex-direction: column; }
    #brain-graph-container {
        flex: none;
        height: 42vh;
    }
    #brain-sidebar {
        width: 100% !important;
        max-height: 38vh;
        border-left: none;
        border-top: 1px solid var(--border-default);
    }
    .gene-bit-row { flex-wrap: wrap; }

    /* Touch-friendly tap targets */
    .ctrl-btn, .btn, .agent-tab, .mode-btn {
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
    }
}

/* --- Phone (≤ 480px): compact single-row toolbar --- */
@media (max-width: 480px) {

    /* Toolbar: tighter, single row — toolbar-left is empty after hiding its children */
    #toolbar {
        padding: 0 var(--space-sm);
        gap: 4px;
    }
    .toolbar-left { display: none; }
    .toolbar-center { gap: 4px; }
    .toolbar-right  { gap: 4px; }

    /* Hide "Speed:" text label; keep value + slider */
    .speed-label-text { display: none; }

    /* Smaller gen/pop */
    .gen-pop-counter { font-size: 13px; }

    /* Tighter playback buttons */
    .ctrl-btn {
        padding: 4px 5px;
        min-width: 22px;
        font-size: 11px;
    }

    /* Speed slider narrower */
    .speed-control input[type="range"] { width: 54px; }

    /* Status badge: compact */
    #sim-status {
        font-size: 10px;
        padding: 2px 5px;
        letter-spacing: 0;
    }

    /* Panels: wider drawers on phones (less canvas is fine when deliberately opening) */
    #species-panel:not(.collapsed) { width: min(88vw, 300px) !important; }
    #side-panel:not(.collapsed)    { width: min(92vw, 340px) !important; }

    /* Footer: anchored to viewport edges */
    #overlay-bar {
        left: var(--space-xs);
        right: var(--space-xs);
    }
    .footer-card-checks {
        grid-template-columns: repeat(2, auto);
    }

    /* Brain modal: tight */
    #brain-header {
        padding: 8px 10px;
        flex-wrap: wrap;
        gap: 6px;
    }
    #brain-view-toggle { margin-left: 0; }
    #brain-species-name { font-size: 13px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .mode-btn,
    .ctrl-btn,
    .species-row,
    .agent-tab,
    .snapshot-load-btn,
    .edge-tab,
    .footer-card,
    #param-status .param-restart-btn,
    #species-panel,
    #side-panel,
    #param-status {
        transition: none !important;
        transform: none !important;
    }
}