@font-face{font-family:Inter Fallback;font-weight:100 449;src:local("Arial"),local("ArialMT"),local("Liberation Sans"),local("Arimo");size-adjust:106.4%;ascent-override:91.2%;descent-override:22.6%;line-gap-override:0%}@font-face{font-family:Inter Fallback;font-weight:450 549;src:local("Arial"),local("ArialMT"),local("Liberation Sans"),local("Arimo");size-adjust:107.4%;ascent-override:90.3%;descent-override:22.3%;line-gap-override:0%}@font-face{font-family:Inter Fallback;font-weight:550 649;src:local("Arial Bold"),local("Arial-BoldMT"),local("Liberation Sans Bold"),local("Arimo Bold");size-adjust:101.6%;ascent-override:95.5%;descent-override:23.6%;line-gap-override:0%}@font-face{font-family:Inter Fallback;font-weight:650 749;src:local("Arial Bold"),local("Arial-BoldMT"),local("Liberation Sans Bold"),local("Arimo Bold");size-adjust:102.5%;ascent-override:94.6%;descent-override:23.4%;line-gap-override:0%}@font-face{font-family:Inter Fallback;font-weight:750 1000;src:local("Arial Bold"),local("Arial-BoldMT"),local("Liberation Sans Bold"),local("Arimo Bold");size-adjust:103.6%;ascent-override:93.6%;descent-override:23.2%;line-gap-override:0%}@font-face{font-family:JetBrains Mono Fallback;src:local("Courier New"),local("CourierNewPSMT"),local("Liberation Mono"),local("Cousine");size-adjust:100%;ascent-override:102%;descent-override:30%;line-gap-override:0%}:root{--page-gutter: clamp(16px, 3vw, 32px);--warn-text: light-dark(#9a5300, var(--warn));color-scheme:light;--font-ui: "Inter", "Inter Fallback", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "JetBrains Mono Fallback", ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;--bg: #f5f6fa;--surface: #ffffff;--surface-2: #f0f2f7;--surface-3: #e7eaf2;--scroll-shadow: rgb(15 20 40 / .16);--border: #e1e4ec;--border-strong: #cdd2de;--text: #141824;--text-2: #4d5568;--muted: #636b7e;--accent: #5b4cf0;--accent-soft: #ecebff;--accent-text: #ffffff;--good: #0f9f6e;--good-soft: #e3f7ef;--series-1: #2a78d6;--series-2: #eb6834;--series-3: #1baf7a;--series-4: #eda100;--series-5: #e87ba4;--warn: #c2700c;--dep-load: #c2700c;--vintage: #a8551c;--vintage-soft: #fbeee3;--brass: #8a6a12;--brass-soft: #f8f1dc;--analogy: #0b6f78;--analogy-soft: #e3f3f4;--tube-glow: #e8730c;--pcard: #efe0b8;--pcard-ink: #6d5a33;--pcard-hole: #141824;--pcard-edge: #cdb98a;--warn-soft: #fff4e0;--note-bg: #fff7e0;--note-line: #e6cf86;--note-ink: #6b5310;--note-mark: #f5c542;--note-mark-ink: #3d2d00;--bad: #d92d20;--bad-soft: #fdecea;--shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 4px 16px rgb(16 24 40 / 6%);--shadow-lg: 0 8px 40px rgb(16 24 40 / 14%);--canvas: #fbfbfd;--wt-water: #2f86e0;--wt-drop: #1c5fb8;--wt-pipe: #8b94a6;--wt-dark: #3a4152;--wt-pmos: #d94a3a;--wt-nmos: #3a6fd9;--wt-lamp: #f2b01e;--wt-wood: #b98a52;--wt-glass: #8fb4dd;--wt-sky: #a9adb6;--wt-ground: #5a5652;--wt-key: #e2ded6;--grid: #d6dae4;--sym-stroke: #2b3142;--sym-fill: #ffffff;--box-fill: #f4f4ff;--box-stroke: #4a5170;--chip-fill-s: 70%;--chip-fill-l: 94%;--chip-stroke-s: 45%;--chip-stroke-l: 38%;--plumb: #6b7390;--hl: #5b4cf0;--sel: #5b4cf0;--fld-op: #c026d3;--fld-rd: #059669;--fld-rs: #2563eb;--fld-fn: #d97706;--fld-imm: #dc2626;--wire-w0: .16;--wire-w1: .22;--wire-bus: .36;--wire-dash0: none;--wire-dash-x: .5 .3;--wire-glow: drop-shadow(0 0 .25px var(--w1));--bus0-opacity: .55;--flow1: color-mix(in srgb, var(--w1) 22%, #fff);--flow-token-text: light-dark(#ffffff, #0b1020);--flow-token-edge: light-dark(rgb(255 255 255 / 70%), rgb(0 0 0 / 45%));--radius: 12px;--radius-sm: 8px;--topbar-h: 56px}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){color-scheme:dark;--bg: #0a0c12;--surface: #11141c;--surface-2: #171b25;--surface-3: #1f2430;--scroll-shadow: rgb(0 0 0 / .5);--border: #232835;--border-strong: #313849;--text: #e8eaf1;--text-2: #a7adbd;--muted: #838a9e;--accent: #8b7fff;--accent-soft: #221f45;--accent-text: #0a0c12;--good: #34d399;--good-soft: #0f2a22;--series-1: #3987e5;--series-2: #d95926;--series-3: #199e70;--series-4: #c98500;--series-5: #d55181;--warn: #f5a524;--dep-load: #f0a13a;--vintage: #e39a62;--vintage-soft: #2c1c10;--brass: #d9b44a;--brass-soft: #262010;--analogy: #4fc7cf;--analogy-soft: #0d2628;--tube-glow: #ff9a3a;--pcard: #cdbd94;--pcard-ink: #4d3f22;--pcard-hole: #0a0c12;--pcard-edge: #a8976b;--warn-soft: #2d2210;--note-bg: #2b2410;--note-line: #6b5a1f;--note-ink: #e8d38a;--note-mark: #f5c542;--note-mark-ink: #2b2000;--bad: #f87171;--bad-soft: #2e1416;--shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 4px 16px rgb(0 0 0 / 25%);--shadow-lg: 0 8px 40px rgb(0 0 0 / 50%);--canvas: #0c0f16;--wt-water: #4aa3f5;--wt-drop: #8cc8ff;--wt-pipe: #8e98ac;--wt-dark: #4a5266;--wt-pmos: #ef6a5a;--wt-nmos: #5b8ff0;--wt-lamp: #ffc63d;--wt-wood: #c99a62;--wt-glass: #a9c6e8;--wt-sky: #8d93a3;--wt-ground: #3d3b3a;--wt-key: #d8d4cc;--grid: #232a38;--sym-stroke: #c9cfdc;--sym-fill: #141824;--box-fill: #171b2a;--box-stroke: #8d95b3;--chip-fill-s: 35%;--chip-fill-l: 16%;--chip-stroke-s: 55%;--chip-stroke-l: 68%;--plumb: #8891ab;--hl: #a397ff;--sel: #a397ff;--fld-op: #e879f9;--fld-rd: #34d399;--fld-rs: #60a5fa;--fld-fn: #fbbf24;--fld-imm: #f87171}}:root[data-theme=dark],:root[data-look=vivid][data-board=dark] svg.schematic,:root[data-look=vivid][data-board=dark] .sb-empty-chip{color-scheme:dark;--bg: #0a0c12;--surface: #11141c;--surface-2: #171b25;--surface-3: #1f2430;--scroll-shadow: rgb(0 0 0 / .5);--border: #232835;--border-strong: #313849;--text: #e8eaf1;--text-2: #a7adbd;--muted: #838a9e;--accent: #8b7fff;--accent-soft: #221f45;--accent-text: #0a0c12;--good: #34d399;--good-soft: #0f2a22;--series-1: #3987e5;--series-2: #d95926;--series-3: #199e70;--warn: #f5a524;--dep-load: #f0a13a;--vintage: #e39a62;--vintage-soft: #2c1c10;--brass: #d9b44a;--brass-soft: #262010;--analogy: #4fc7cf;--analogy-soft: #0d2628;--tube-glow: #ff9a3a;--pcard: #cdbd94;--pcard-ink: #4d3f22;--pcard-hole: #0a0c12;--pcard-edge: #a8976b;--warn-soft: #2d2210;--note-bg: #2b2410;--note-line: #6b5a1f;--note-ink: #e8d38a;--note-mark: #f5c542;--note-mark-ink: #2b2000;--bad: #f87171;--bad-soft: #2e1416;--shadow: 0 1px 2px rgb(0 0 0 / 30%), 0 4px 16px rgb(0 0 0 / 25%);--shadow-lg: 0 8px 40px rgb(0 0 0 / 50%);--canvas: #0c0f16;--wt-water: #4aa3f5;--wt-drop: #8cc8ff;--wt-pipe: #8e98ac;--wt-dark: #4a5266;--wt-pmos: #ef6a5a;--wt-nmos: #5b8ff0;--wt-lamp: #ffc63d;--wt-wood: #c99a62;--wt-glass: #a9c6e8;--wt-sky: #8d93a3;--wt-ground: #3d3b3a;--wt-key: #d8d4cc;--grid: #232a38;--sym-stroke: #c9cfdc;--sym-fill: #141824;--box-fill: #171b2a;--box-stroke: #8d95b3;--chip-fill-s: 35%;--chip-fill-l: 16%;--chip-stroke-s: 55%;--chip-stroke-l: 68%;--plumb: #8891ab;--hl: #a397ff;--sel: #a397ff;--fld-op: #e879f9;--fld-rd: #34d399;--fld-rs: #60a5fa;--fld-fn: #fbbf24;--fld-imm: #f87171}:root,[data-palette=default]{--w0: light-dark(#808a9f, #667089);--w1: light-dark(#e8590c, #ff8a3d);--w1-glow: light-dark(rgb(232 89 12 / 22%), rgb(255 138 61 / 30%));--wx: light-dark(#e11d48, #fb5779);--wshort: light-dark(#ea580c, #ff9440);--wz: light-dark(#8b5cf6, #a78bfa);--bus: light-dark(#2f6fe4, #4d8dff);--bus1: light-dark(#1e5fd8, #7aa9ff);--bus-label-bg: light-dark(#e8f0ff, #13213f);--bus-label-text: light-dark(#1b4fb8, #a9c6ff);--channel-on: var(--w1)}:root{--probe-0: light-dark(#2563eb, #60a5fa);--probe-1: light-dark(#d97706, #fbbf24);--probe-2: light-dark(#059669, #34d399);--probe-3: light-dark(#c026d3, #e879f9);--probe-4: light-dark(#0891b2, #22d3ee);--probe-5: light-dark(#dc2626, #f87171);--probe-6: light-dark(#7c3aed, #a78bfa);--probe-7: light-dark(#65a30d, #a3e635)}:root[data-palette=cb],[data-palette=cb]{--w0: light-dark(#808a9f, #667089);--w1: light-dark(#0072b2, #56b4e9);--w1-glow: light-dark(rgb(0 114 178 / 20%), rgb(86 180 233 / 28%));--wx: light-dark(#d55e00, #ff7f2a);--wshort: light-dark(#a35a00, #f0c000);--wz: light-dark(#c26b9c, #e3a3c8);--bus: light-dark(#009e73, #2fbf95);--bus1: light-dark(#00805d, #5fd6b0);--bus-label-bg: light-dark(#e2f5ee, #0f2a22);--bus-label-text: light-dark(#006b4e, #8fe3c6);--channel-on: var(--w1)}:root[data-palette=lsim],[data-palette=lsim]{--w0: light-dark(#3b3f4a, #667089);--w1: light-dark(#e5322d, #ff4b42);--w1-glow: light-dark(rgb(229 50 45 / 22%), rgb(255 75 66 / 30%));--wx: light-dark(#a97c00, #f2c230);--wshort: light-dark(#dc2626, #ff6b6b);--wz: light-dark(#7c8aa5, #8b97b0);--bus: light-dark(#3b3f4a, #6d7487);--bus1: light-dark(#c42a26, #ff5a52);--bus-label-bg: light-dark(#fde8e7, #331716);--bus-label-text: light-dark(#a3201c, #ffaaa5);--channel-on: var(--w1);--wire-w0: .22;--wire-w1: .26;--wire-bus: .42;--wire-glow: none;--bus0-opacity: .85}:root[data-palette=contrast],[data-palette=contrast]{--w0: light-dark(#4a4f5c, #8a91a3);--w1: light-dark(#e04f00, #ffb000);--w1-glow: light-dark(rgb(224 79 0 / 25%), rgb(255 176 0 / 32%));--wx: light-dark(#d0005a, #ff3b7b);--wshort: light-dark(#c2410c, #ffa040);--wz: light-dark(#6d28d9, #c4a5ff);--bus: light-dark(#0047d6, #4d9aff);--bus1: light-dark(#0038b0, #8cc0ff);--bus-label-bg: light-dark(#ffffff, #000000);--bus-label-text: light-dark(#002f8f, #bcd9ff);--sym-stroke: light-dark(#000000, #ffffff);--box-stroke: light-dark(#000000, #e6e9f2);--channel-on: var(--w1);--wire-w0: .2;--wire-w1: .34;--wire-bus: .48;--wire-glow: none;--bus0-opacity: .9}:root[data-palette=print],[data-palette=print]{--w0: light-dark(#8c8c8c, #8a8a8a);--w1: light-dark(#000000, #ffffff);--w1-glow: light-dark(rgb(0 0 0 / 12%), rgb(255 255 255 / 16%));--wx: light-dark(#000000, #ffffff);--wshort: light-dark(#000000, #ffffff);--wz: light-dark(#8c8c8c, #8a8a8a);--bus: light-dark(#555555, #aaaaaa);--bus1: light-dark(#000000, #ffffff);--bus-label-bg: light-dark(#ffffff, #000000);--bus-label-text: light-dark(#000000, #ffffff);--channel-on: var(--w1);--wire-w0: .12;--wire-w1: .32;--wire-bus: .42;--wire-dash0: .45 .3;--wire-dash-x: .1 .25;--wire-glow: none;--bus0-opacity: .8}:root[data-netcolors=on] [style*=--nh],:root [style*=--net-user]{--w0: light-dark(oklch(.78 .08 var(--nh)), oklch(.56 .09 var(--nh)));--w1: light-dark(oklch(.57 .19 var(--nh)), oklch(.8 .16 var(--nh)));--w1-glow: light-dark(oklch(.57 .19 var(--nh) / 22%), oklch(.8 .16 var(--nh) / 30%));--flow1: light-dark(oklch(.95 .05 var(--nh)), oklch(.97 .04 var(--nh)));--bus: light-dark(oklch(.72 .09 var(--nh)), oklch(.56 .1 var(--nh)));--bus1: light-dark(oklch(.52 .17 var(--nh)), oklch(.76 .15 var(--nh)));--bus-label-bg: light-dark(oklch(.95 .03 var(--nh)), oklch(.25 .05 var(--nh)));--bus-label-text: light-dark(oklch(.42 .14 var(--nh)), oklch(.85 .1 var(--nh)))}*,*:before,*:after{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.55 var(--font-ui);-webkit-font-smoothing:antialiased;overflow:hidden}button{font:inherit;color:inherit}a{color:var(--accent)}code,kbd,pre{font-family:var(--font-mono);font-size:.9em}code{background:var(--surface-3);padding:.08em .35em;border-radius:5px}kbd{border:1px solid var(--border-strong);border-bottom-width:2px;padding:0 .35em;border-radius:5px;font-size:.8em}.icon{flex:none;display:block}[hidden]{display:none!important}::selection{background:var(--accent-soft)}.topbar{height:var(--topbar-h);display:flex;align-items:center;gap:12px;padding:0 16px;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:relative;z-index:20}.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.01em;text-decoration:none;color:var(--text);white-space:nowrap}.brand-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#e8590c);color:#fff}.brand small{color:var(--muted);font-weight:500}.nav{display:flex;gap:2px;margin-left:12px;min-width:0;overflow-x:auto;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{flex:none;display:flex;align-items:center;gap:6px;padding:6px 10px;border-radius:8px;color:var(--text-2);text-decoration:none;font-weight:500;font-size:14px}.nav a:hover{background:var(--surface-2);color:var(--text)}.nav a.active{background:var(--accent-soft);color:var(--accent)}.nav a .cap{display:none}.spacer{flex:1}.brand,.tools{flex:none}.tools{display:flex;align-items:center;gap:8px}@media(max-width:1760px){.brand small{display:none}}@media(max-width:1380px){.brand-long{display:none}}@media(max-width:1220px){.tools .lbl{display:none}}@media(max-width:960px){.nav a span{display:none}}@media(max-width:580px){.brand-name{display:none}}.return-pill{flex:none;display:flex;align-items:center;height:30px;margin-left:6px;border-radius:15px;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 35%,transparent);--rt-ink: color-mix(in srgb, var(--accent) 70%, var(--text))}.return-pill[hidden]{display:none}.rt-go{display:flex;align-items:center;gap:6px;height:100%;min-width:0;padding:0 4px 0 10px;border-radius:15px 0 0 15px;color:var(--rt-ink);font-size:12.5px;font-weight:600;text-decoration:none}.rt-go .icon{flex:none}.rt-long,.rt-short{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.rt-long{max-width:30ch}.rt-short{max-width:14ch}.return-pill:not([data-fit=short]) .rt-short,.return-pill:not([data-fit=long]) .rt-long{display:none}.return-pill[data-fit=icon] .rt-go{gap:0}.rt-x{flex:none;display:grid;place-items:center;width:26px;height:26px;margin-right:2px;padding:0;border:0;border-radius:13px;background:none;color:var(--rt-ink);cursor:pointer}.rt-go:hover,.rt-x:hover{background:color-mix(in srgb,var(--accent) 14%,transparent)}@media(max-width:480px){.return-pill{margin-left:2px}.rt-short{max-width:10ch}.rt-go{padding-right:10px;border-radius:15px}.rt-x{display:none}}@media(max-width:480px){.nav{margin-left:0}.nav a{padding:6px 7px}.nav a .icon:not(:first-child){display:none}.topbar .tools{gap:4px}}@media(max-width:760px){:root:root{--topbar-h: 70px}.nav a{flex-direction:column;justify-content:center;gap:2px;padding:4px 5px}.nav a span.cap{display:block;font-size:10px;line-height:12px;font-weight:600;letter-spacing:0;white-space:nowrap}.nav a .icon:not(:first-child){display:none}.topbar .slow-btn{display:none}}.pal-wrap{position:relative}.pal-sw{display:inline-grid;grid-template-columns:repeat(2,7px);gap:2px}.pal-sw i{width:7px;height:7px;border-radius:2px;display:block}.pal-sw .s0{background:var(--w0)}.pal-sw .s1{background:var(--w1)}.pal-sw .sx{background:var(--wx)}.pal-sw .sb{background:var(--bus)}.pal-menu{display:none;position:absolute;right:0;top:calc(100% + 6px);z-index:40;min-width:320px;background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;max-height:calc(100dvh - var(--topbar-h) - 12px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;background:linear-gradient(var(--surface) 30%,transparent) 0 0 / 100% 28px local no-repeat,linear-gradient(transparent,var(--surface) 70%) 0 100% / 100% 28px local no-repeat,radial-gradient(farthest-side at 50% 0,color-mix(in srgb,var(--text) 28%,transparent),transparent) 0 0 / 100% 10px scroll no-repeat,radial-gradient(farthest-side at 50% 100%,color-mix(in srgb,var(--text) 28%,transparent),transparent) 0 100% / 100% 10px scroll no-repeat,var(--surface)}.pal-menu.open{display:grid;gap:2px}.pal-menu button{display:flex;align-items:center;gap:12px;text-align:left;border:0;background:transparent;color:var(--text);padding:8px 10px;border-radius:8px;cursor:pointer;font:inherit}.pal-menu button:hover{background:var(--surface-2)}.pal-menu button[aria-checked=true]{background:var(--accent-soft)}.pal-menu .pal-preview{position:sticky;top:-6px;z-index:2;height:116px;margin:-6px -6px 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