/* Institutional tokens shared by the editor and all signal renderers. */
:root, html:not(.dark) {
  --cor-ciano:#16DFE5; --cor-teal:#009096; --cor-teal-escuro:#004D4E;
  --cor-laranja-queimado:#9E3C00; --cor-laranja:#D86018; --cor-dourado:#F8A024;
  --cor-cinza-medio:#939D9F; --cor-cinza-claro:#C2C0BF; --cor-cinza-escuro:#545556;
  --cor-branco:#FEFFFF; --cor-preto:#000000; --cor-grafite:#1E2228; --cor-azul-marinho:#182038;
  --input-face:#3b82f6; --output-on:#ef4444; --output-off:#991b1b;
  --logic-high:var(--cor-laranja); --logic-low:var(--cor-cinza-medio); --logic-unknown:var(--cor-cinza-medio);
  --wire-on:var(--logic-high); --wire-off:var(--logic-low); --wire-selected:var(--cor-dourado);
  --surface-main:var(--cor-branco); --surface-secondary:#F4F8F8; --text-main:var(--cor-grafite);
  --app-bg:var(--surface-secondary); --app-panel:var(--surface-main); --app-panel-2:var(--surface-secondary);
  --app-card:var(--surface-main); --app-border:#c5d5d5; --app-border-strong:var(--cor-teal);
  --app-text:var(--text-main); --app-muted:var(--cor-cinza-escuro); --app-blue:var(--cor-teal-escuro);
  --app-green:var(--cor-teal-escuro); --app-red:var(--cor-laranja-queimado);
  --gate-fill:var(--surface-main); --workspace-light:#e9f1f1; --workspace-dark:var(--cor-grafite);
}
html.dark {
  --output-off:#7f1d1d;
  --surface-main:#242d33; --surface-secondary:var(--cor-grafite); --text-main:var(--cor-branco);
  --app-bg:var(--surface-secondary); --app-panel:var(--surface-main); --app-panel-2:var(--surface-secondary);
  --app-card:var(--surface-main); --app-border:#4b6062; --app-border-strong:var(--cor-teal);
  --app-text:var(--text-main); --app-muted:#bdcece; --app-blue:var(--cor-ciano); --app-green:var(--cor-ciano);
  --app-red:var(--cor-dourado); --gate-fill:var(--surface-main);
  --wire-on:var(--logic-high); --wire-off:var(--logic-low); --wire-selected:var(--cor-dourado);
}
html body {font-family:Inter,system-ui,Arial,sans-serif;background:var(--app-bg);color:var(--app-text)}
html #app-header, html #components-sidebar, html #analysis-sidebar, html #learning-modal {
  background:var(--surface-main)!important; color:var(--text-main)!important; border-color:var(--app-border)!important;
}
html #workspace {background-color:var(--app-bg)!important}
html #app-header button,html #app-header select,html #components-sidebar .toolbar-item,
html #analysis-sidebar input,html #analysis-sidebar select,html #canvas-toolbar {
  background:var(--surface-secondary)!important;color:var(--text-main)!important;border-color:var(--app-border)!important;
}
html #app-header #btn-learning,html #app-header #btn-load-example {
  background:var(--cor-teal-escuro)!important;color:var(--cor-branco)!important;border-color:var(--cor-teal)!important;
}
html #app-header #btn-clear {background:var(--cor-laranja-queimado)!important;color:var(--cor-branco)!important}
html #components-sidebar h2,html #analysis-sidebar h2 {color:var(--app-blue)!important}
html #components-sidebar .toolbar-item span {color:var(--text-main)!important}
html .gate-svg {color:var(--app-blue)!important;filter:none!important}
html .gate-svg [stroke]:not([stroke="none"]) {stroke:currentColor}
html .state-high {background:var(--logic-high)!important}
html .state-low {background:var(--logic-low)!important}
html .state-none {background:var(--logic-unknown)!important}
html .wire-high {stroke:var(--logic-high)!important}
html .wire-low {stroke:var(--logic-low)!important}
html .wire-unknown,html .wire-dangling {stroke:var(--logic-unknown)!important;stroke-dasharray:5 4}
html .wire-junction-high {fill:var(--logic-high)!important}
html .wire-junction-low {fill:var(--logic-low)!important}
html .wire-selected {stroke:var(--cor-dourado)!important}
html [data-logic="1"] .led-bulb {background:var(--output-on)!important;border-color:var(--output-on)!important;box-shadow:0 0 12px #ef444455!important}
html [data-logic="0"] .led-bulb {background:var(--output-off)!important;border-color:var(--output-on)!important;box-shadow:none!important}
html [data-logic="X"] .led-bulb {background:var(--logic-unknown)!important;border-color:var(--cor-cinza-escuro)!important;box-shadow:none!important}
html .logic-text-high,html .logic-text-low,html .logic-text-unknown {color:var(--text-main)!important}
.logic-text-high:before,.logic-text-low:before,.logic-text-unknown:before {content:"";display:inline-block;width:8px;height:8px;margin-right:5px;border-radius:50%;border:1px solid #545556;background:var(--logic-high)}
.logic-text-low:before {background:var(--logic-low)}
.logic-text-unknown:before {background:var(--logic-unknown)}
button:focus-visible,select:focus-visible,input:focus-visible,a:focus-visible {outline:3px solid var(--cor-teal)!important;outline-offset:3px}
button {touch-action:manipulation}
.signal-legend {font-size:11px;display:flex;gap:10px;align-items:center;color:var(--text-main);padding:5px 12px;background:var(--surface-main);border-bottom:1px solid var(--app-border)}
html #btn-import,html #btn-export,html #btn-theme {display:inline-flex!important}
@media(max-width:640px){html #app-header button,html #app-header select{min-height:40px}.signal-legend{font-size:10px;gap:7px}}
/* Match the specificity of legacy light-theme rules during incremental migration. */
:is(html:not(.dark),html.dark) #app-header,
:is(html:not(.dark),html.dark) #components-sidebar,
:is(html:not(.dark),html.dark) #analysis-sidebar {background:var(--surface-main)!important;color:var(--text-main)!important}
:is(html:not(.dark),html.dark) #app-header button,
:is(html:not(.dark),html.dark) #app-header select,
:is(html:not(.dark),html.dark) #components-sidebar .toolbar-item {background:var(--surface-secondary)!important;color:var(--text-main)!important;border-color:var(--app-border)!important}
:is(html:not(.dark),html.dark) #app-header #btn-learning,
:is(html:not(.dark),html.dark) #app-header #btn-load-example {background:var(--cor-teal-escuro)!important;color:var(--cor-branco)!important}
:is(html:not(.dark),html.dark) #app-header #btn-clear {background:var(--cor-laranja-queimado)!important;color:var(--cor-branco)!important}
:is(html:not(.dark),html.dark) #components-sidebar h2,
:is(html:not(.dark),html.dark) #analysis-sidebar h2 {color:var(--app-blue)!important}
:is(html:not(.dark),html.dark) #components-sidebar .toolbar-item span {color:var(--text-main)!important}
:is(html:not(.dark),html.dark) .wire-high {stroke:var(--logic-high)!important}
:is(html:not(.dark),html.dark) .wire-low {stroke:var(--logic-low)!important}
:is(html:not(.dark),html.dark) .wire-unknown {stroke:var(--logic-unknown)!important}
:is(html:not(.dark),html.dark) .state-high {background:var(--logic-high)!important}
:is(html:not(.dark),html.dark) .state-low {background:var(--logic-low)!important}
:is(html:not(.dark),html.dark) .state-none {background:var(--logic-unknown)!important}
:is(html:not(.dark),html.dark) .wire-junction-high {fill:var(--logic-high)!important}
:is(html:not(.dark),html.dark) .wire-junction-low {fill:var(--logic-low)!important}
:is(html:not(.dark),html.dark) .wire-junction-unknown {fill:var(--logic-unknown)!important}
.component,.pin,#workspace {touch-action:none}
.storage-notice {position:fixed;bottom:12px;left:5%;right:5%;z-index:200;background:var(--surface-main);color:var(--text-main);border:2px solid var(--cor-dourado);border-radius:8px;padding:12px;font-size:13px;user-select:text}
/* One scroll area for properties, diagnostics and the complete truth table. */
#editor-shell {min-height:0}
#analysis-sidebar {
  min-height:0;
  overflow:auto;
  scrollbar-gutter:stable;
  scrollbar-width:auto;
  scrollbar-color:var(--cor-teal) var(--surface-secondary);
}
#analysis-sidebar > * {flex-shrink:0}
#analysis-sidebar #truth-table-content {
  flex:0 0 auto;
  overflow:visible;
}
#analysis-sidebar::-webkit-scrollbar {width:12px;height:12px}
#analysis-sidebar::-webkit-scrollbar-track {background:var(--surface-secondary)}
#analysis-sidebar::-webkit-scrollbar-thumb {background:var(--cor-teal);border:3px solid var(--surface-secondary);border-radius:8px}
#app-header #btn-theme {min-width:108px;min-height:36px;padding:6px 10px;flex-shrink:0;cursor:pointer;appearance:auto}
body.learning-session-active #app-header > div:last-child {display:flex!important}
body.learning-session-active #app-header > div:last-child > :not(#btn-theme):not(#btn-timing):not(#btn-projects):not(#btn-svg):not(#btn-png) {display:none!important}
.app-brand {width:144px;flex:0 0 144px;display:flex;align-items:center}
.app-brand img {display:block;width:100%;height:auto;object-fit:contain;border-radius:4px}
.brand-symbol {display:none}
html:not(.dark) .app-brand .brand-image-dark,html.dark .app-brand .brand-image-light {display:none}
@media(max-width:640px){.app-brand{width:38px;flex-basis:38px}.brand-wordmark{display:none}.brand-symbol{display:block}}
/* Current circuit state: opaque highlight across every cell in both themes. */
:is(html:not(.dark),html.dark) #truth-table-content .tt-row.active,
:is(html:not(.dark),html.dark) #truth-table-content .tt-row.active > td {
  background:var(--cor-dourado)!important;
  color:var(--cor-grafite)!important;
  font-weight:800;
  border-top:2px solid var(--cor-laranja-queimado)!important;
  border-bottom:2px solid var(--cor-laranja-queimado)!important;
}
:is(html:not(.dark),html.dark) #truth-table-content .tt-row.active > td:first-child {box-shadow:inset 4px 0 var(--cor-laranja-queimado)}
:is(html:not(.dark),html.dark) .component.selected {outline-color:var(--cor-dourado)!important;box-shadow:0 0 0 5px #f8a02433!important}
:is(html:not(.dark),html.dark) .wire-group.selected .wire-path {stroke:var(--cor-dourado)!important}
:is(html:not(.dark),html.dark) #didactic-bus-overlay .didactic-junction.wire-junction-high {fill:var(--logic-high)!important}
:is(html:not(.dark),html.dark) #didactic-bus-overlay .didactic-junction.wire-junction-low {fill:var(--logic-low)!important}
:is(html:not(.dark),html.dark) #didactic-bus-overlay .didactic-junction.wire-junction-unknown {fill:var(--logic-unknown)!important}
:is(html:not(.dark),html.dark) .component-box {background:var(--surface-main)!important;border-color:var(--app-border-strong)!important;color:var(--text-main)!important;box-shadow:none!important}
:is(html:not(.dark),html.dark) .component-box:has(.switch-value) {background:var(--input-face)!important;border-color:var(--input-face)!important;color:var(--cor-branco)!important}
:is(html:not(.dark),html.dark) .component-box .switch-value {color:var(--cor-branco)!important}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}
/* Adaptive controls and auxiliary panels: the canvas keeps the available viewport. */
body{height:100dvh!important;max-width:100%;min-height:0}
#btn-actions,#btn-mobile-tools{display:none}
#header-actions{min-width:0;max-width:100%}
#header-actions>button{white-space:nowrap}
#advanced-dialog{width:min(1100px,calc(100vw - 24px));max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:16px;border:1px solid var(--app-border);border-radius:14px;background:var(--surface-main);color:var(--text-main);overflow:auto;overscroll-behavior:contain}
#advanced-dialog::backdrop{background:#07131e99}
.advanced-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;position:sticky;top:-16px;background:var(--surface-main);z-index:2;padding:8px 0}
.advanced-heading h2{font-size:18px;font-weight:800}
.advanced-controls{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin:12px 0}
.advanced-controls label,#advanced-properties>label{display:flex;flex-direction:column;gap:4px;font-size:13px}
#advanced-dialog button,#advanced-dialog select,#advanced-dialog input,#advanced-properties button,#advanced-properties select{border:1px solid var(--app-border-strong);border-radius:8px;background:var(--surface-secondary);color:var(--text-main);padding:9px 12px;min-height:42px;max-width:100%}
#advanced-properties{display:grid;gap:12px;margin-top:12px}
#advanced-properties fieldset{border:1px solid var(--app-border);padding:10px;border-radius:8px;font-size:12px}
#advanced-properties fieldset label{display:block;padding:7px 0}
#advanced-dialog p{font-size:13px;line-height:1.5;margin:10px 0}
.trace-scroll{overflow:auto;max-width:100%;scrollbar-gutter:stable;overscroll-behavior:contain}
.trace-scroll table{border-collapse:collapse;width:100%;font-size:12px}
.trace-scroll td,.trace-scroll th{border:1px solid var(--app-border);padding:8px;text-align:left}
.internal-svg{color:var(--text-main)}
.project-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:12px 0;border-bottom:1px solid var(--app-border)}
.project-row b{flex:1 1 170px;overflow-wrap:anywhere}.project-row small{font-size:11px}
@media(min-width:1025px){#app-header{flex-wrap:wrap;gap:6px!important}#header-actions{flex-wrap:wrap!important;overflow:visible!important}#app-header h1{font-size:17px!important}}
@media(max-width:1024px), (max-height:600px) and (max-width:1280px){
 #app-header,body.learning-session-active #app-header{display:flex!important;flex-direction:row!important;flex-wrap:nowrap!important;align-items:center!important;justify-content:space-between!important;gap:8px!important;padding:5px 8px!important;min-height:48px!important;height:48px!important;flex:0 0 48px;position:relative;z-index:90}
 #app-header>div:first-child{width:auto!important;flex:1;min-width:0!important;gap:8px!important}
 #app-header h1,body.learning-session-active #app-header h1{font-size:clamp(12px,2.4vw,16px)!important;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 #app-header>div:first-child>div:last-child{min-width:0}
 #app-header>div:first-child p{display:none!important}
 .app-brand{width:34px!important;flex-basis:34px!important}.brand-wordmark{display:none!important}.brand-symbol{display:block!important}
 #app-header #btn-actions{display:block!important;flex:0 0 auto;min-height:38px;padding:5px 10px!important;border-radius:8px;border:1px solid var(--app-border);font-size:12px;background:var(--surface-secondary);color:var(--text-main)}
 #app-header #header-actions,body.learning-session-active #app-header #header-actions{display:none!important;position:absolute;top:100%;left:0;right:0;width:100%!important;max-height:calc(100dvh - 64px);overflow:auto!important;background:var(--surface-main);padding:12px!important;box-shadow:0 12px 30px #0005;border-bottom:1px solid var(--app-border)}
 body.commands-open #app-header #header-actions{display:grid!important;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px!important}
 body.learning-session-active.commands-open #app-header #header-actions>:not(#btn-theme){display:block!important}
 #app-header #header-actions>*{width:100%!important;max-width:100%;min-width:0!important;min-height:42px!important;margin:0!important;white-space:normal!important}
 .signal-legend{font-size:10px;padding:3px 8px;gap:8px;flex-wrap:wrap;flex-shrink:0}
 #mobile-panel-controls{top:6px!important;left:6px!important;right:6px!important;justify-content:flex-start!important;gap:6px!important}
 #mobile-panel-controls button{min-height:38px!important;padding:5px 9px!important;font-size:11px!important}
 #mobile-panel-controls #btn-mobile-tools{display:block!important;margin-left:auto}
 #canvas-toolbar,body.learning-session-active #canvas-toolbar{display:none!important;top:50px!important;left:6px!important;right:6px!important;bottom:auto!important;max-height:calc(100% - 86px);width:auto!important;max-width:none!important;overflow:auto;transform:none!important;flex-wrap:wrap!important;z-index:55}
 body.tools-open #canvas-toolbar{display:flex!important}
 #canvas-toolbar button{min-height:40px!important;min-width:40px!important}
 #workspace>#canvas-status-bar{top:auto!important;bottom:5px!important;left:6px!important;right:auto!important;max-width:calc(100% - 12px);padding:4px 8px!important;font-size:10px!important;pointer-events:none}
 #canvas-status-bar .status-chip:nth-child(2),#canvas-status-bar .status-chip:nth-child(3){display:none!important}
 #components-sidebar,#analysis-sidebar{position:absolute!important;top:0;bottom:0;height:100%!important;z-index:70;visibility:hidden;min-width:0!important;max-width:92vw;overflow-y:auto;overscroll-behavior:contain}
 #components-sidebar{left:0;width:min(320px,88vw)!important;transform:translateX(-103%)}
 #analysis-sidebar{right:0;left:auto;width:min(380px,92vw)!important;transform:translateX(103%)}
 #components-sidebar.mobile-open,#analysis-sidebar.mobile-open{visibility:visible;transform:translateX(0)}
 #mobile-panel-controls{display:flex!important;position:absolute;z-index:52;pointer-events:none}#mobile-panel-controls button{pointer-events:auto}
 #mobile-panel-backdrop{display:block;position:absolute;inset:0;z-index:60;background:#02081288;opacity:0;pointer-events:none}#mobile-panel-backdrop.active{opacity:1;pointer-events:auto}
 #btn-components-sidebar-level,#btn-analysis-sidebar-edge{display:none!important}
 #learning-dialog{max-width:100vw!important;max-height:100dvh!important}
 #advanced-dialog{padding:10px;width:calc(100vw - 12px);max-width:calc(100vw - 12px);max-height:calc(100dvh - 12px)}
 .advanced-heading{top:-10px}.advanced-controls{gap:6px}.advanced-controls>*{flex:1 1 130px}.advanced-heading h2{font-size:15px}
}
@media(max-height:500px) and (orientation:landscape){
 .signal-legend{display:none}
 #app-header,body.learning-session-active #app-header{height:44px!important;min-height:44px!important;flex-basis:44px}
 #mobile-panel-controls button{min-height:34px!important}
 #workspace>#canvas-status-bar{padding:2px 6px!important}
 #learning-dialog>header{padding:6px 10px!important}
 #learning-dialog h2{font-size:15px!important}
 .advanced-heading{padding:3px 0}.advanced-controls{margin:6px 0}
}
#structural-note{padding:10px;border:1px solid var(--cor-dourado);border-radius:8px;font-size:12px;line-height:1.5;margin:8px 0;background:var(--surface-secondary);color:var(--text-main)}
@media(min-width:1025px){#app-header>div:first-child{flex:1 0 340px;min-width:0!important}#app-header h1{white-space:nowrap}#header-actions{flex:1 1 650px}#app-header>div:first-child p{display:none}}
@media(pointer:coarse){.pin::after{content:"";position:absolute;inset:-8px;border-radius:50%;background:transparent}.toolbar-item{min-height:44px}#analysis-sidebar input,#analysis-sidebar select,#advanced-dialog input,#advanced-dialog select{font-size:16px}}
/* The status strip must size to its content, never stretch between two edges. */
#canvas-status-bar{height:max-content}
@supports(padding:max(0px)){
 body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
 @media(max-width:1024px), (max-height:600px) and (max-width:1280px){
  #workspace>#canvas-status-bar{bottom:max(5px,env(safe-area-inset-bottom))!important}
 }
}
.editor-announcement{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.pin:focus-visible,.pin.keyboard-wire-start{outline:3px solid var(--cor-dourado)!important;outline-offset:3px}
.component:focus-visible{outline:3px solid var(--cor-dourado);outline-offset:4px}

/* Small viewport and zoom: panels remain bounded by the editor, not the page. */
#editor-shell,#workspace,#header-actions{min-width:0}
#advanced-dialog .advanced-heading{flex-wrap:wrap;gap:8px}
#advanced-dialog input{min-width:0}
@media(max-width:380px){
 #app-header h1{font-size:12px!important}
 #mobile-panel-controls{flex-wrap:wrap!important}
 #mobile-panel-controls button{min-height:40px!important;padding:5px 7px!important}
 #mobile-panel-controls #btn-mobile-tools{margin-left:0}
 #app-header #header-actions{max-height:calc(100dvh - 56px)}
}