@layer legacy{*,*:before,*:after{box-sizing:border-box}html{background:var(--surface-app);color-scheme:dark;scroll-behavior:smooth;scroll-padding-top:76px}html[data-theme=light]{color-scheme:light}body.landing{margin:0;overflow-x:hidden;background:var(--surface-app);color:var(--text);font:400 16px/1.6 var(--font-sans);-webkit-font-smoothing:antialiased}.landing a{color:inherit}.landing img,.landing video{display:block;max-width:100%;height:auto}.landing [hidden]{display:none!important}.brand-mark{display:block;flex:none}.brand-mark-tile{fill:var(--accent-solid)}.brand-mark-wire{fill:none;stroke:var(--accent-contrast);stroke-width:4.5;stroke-linecap:round;stroke-linejoin:round}.brand-mark-ring{fill:var(--accent-solid);stroke:var(--accent-contrast);stroke-width:3}.brand-mark-dot{fill:var(--accent-contrast)}.brand-wordmark{color:var(--text-strong);font:700 22px/1 var(--font-display);letter-spacing:-.4px}.brand-wordmark-accent{color:var(--accent-text)}html{scrollbar-gutter:stable}.landing-header{position:sticky;top:0;z-index:5;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--surface-header) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.landing-bar{display:flex;align-items:center;gap:18px;max-width:1200px;margin:0 auto;padding:12px 24px}.landing-brand{display:flex;align-items:center;gap:10px;text-decoration:none}.landing-sections{display:flex;gap:4px;margin-left:12px;font-size:14px}.landing-sections a,.landing-nav a{padding:6px 10px;border-radius:var(--radius);color:var(--text-muted);text-decoration:none}.landing-sections a:hover,.landing-nav a:hover{background:var(--surface-hover);color:var(--text-strong)}.landing-sections a[aria-current=page]{color:var(--accent-text);font-weight:600}.landing-bar>.landing-button-small{margin-left:auto}.landing-region{border-bottom:1px solid var(--line);background:var(--surface-hover);font-size:14px}.landing-region-inner{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;max-width:1200px;margin:0 auto;padding:8px 24px;color:var(--text-muted)}.landing-region a{color:var(--accent-text);font-weight:600}.landing-region-close{margin-left:auto;min-width:32px;min-height:32px;border:0;border-radius:var(--radius);background:transparent;color:var(--text-muted);font-size:20px;line-height:1;cursor:pointer}.landing-region-close:hover{background:var(--surface-panel, transparent);color:var(--text-strong)}@media(max-width:640px){.landing-region-inner{padding:8px 16px}}.landing-nav:not([hidden])+.landing-button-small{margin-left:0}.landing-nav{display:flex;gap:2px;margin-left:auto;font-size:13px;font-weight:600;letter-spacing:.4px}.landing-nav a[aria-current=page]{background:var(--accent-soft);color:var(--accent-text)}.landing-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 20px;border:1px solid var(--accent-solid);border-radius:var(--radius);background:var(--accent-solid);color:var(--accent-contrast)!important;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;transition:background .15s,border-color .15s}.landing-button:hover{border-color:var(--accent-solid-hover);background:var(--accent-solid-hover)}.landing-button:focus-visible,.landing a:focus-visible,.landing summary:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.landing-button-small{min-height:38px;padding:7px 14px;font-size:14px}.landing-button-large{min-height:54px;padding:14px 28px;font-size:18px}.landing-button-quiet{border-color:var(--line-strong);background:color-mix(in srgb,var(--surface-panel) 70%,transparent);color:var(--text-strong)!important}.landing-button-quiet:hover{border-color:var(--text-muted);background:var(--surface-hover)}main{max-width:1200px;margin:0 auto;padding:0 24px;overflow-x:clip}.landing-hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center;gap:48px;padding:56px 0 64px}.landing-eyebrow{display:inline-block;margin:0 0 16px;padding:4px 10px;border:1px solid color-mix(in srgb,var(--accent-solid) 45%,transparent);border-radius:999px;background:var(--accent-soft);color:var(--accent-text);font-size:12px;font-weight:600;letter-spacing:.8px;text-transform:uppercase}.landing h1{margin:0;color:var(--text-strong);font:700 clamp(40px,4.6vw,62px)/1.04 var(--font-display);letter-spacing:-1.5px;text-wrap:balance}.landing h1 .landing-accent{display:block}.landing-accent{color:var(--accent-text)}.landing-lead{max-width:34em;margin:22px 0 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var(--line-strong);border-radius:var(--radius-lg);background:var(--surface-canvas)}.landing-devices{padding:28px 0 48px}.landing .landing-strip-heading{margin:0 0 18px;color:var(--text-subtle);font:600 13px/1.4 var(--font-sans);letter-spacing:.6px;text-align:center;text-transform:uppercase}.landing-device-list{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none}.landing-device-list li{display:grid;justify-items:center;gap:8px;padding:14px 6px 12px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface-panel);color:var(--text-muted);font-size:13px;line-height:1.25;text-align:center}.symbol{width:56px;height:37px;overflow:visible;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.symbol .fill{fill:currentColor;stroke:none}.symbol text{fill:currentColor;stroke:none;font:700 11px/1 var(--font-sans);text-anchor:middle}.symbol text.small{font-size:7px}.symbol-source{color:var(--symbol-source)}.symbol-switch{color:var(--symbol-switch)}.symbol-protection{color:var(--symbol-protection)}.symbol-load{color:var(--symbol-load)}.symbol-outlet{color:var(--symbol-outlet)}.landing-section{padding:72px 0;border-top:1px solid var(--line)}.landing-section-head{max-width:760px;margin-bottom:32px}.landing h2{margin:0 0 12px;color:var(--text-strong);font:700 clamp(30px,3.4vw,42px)/1.12 var(--font-display);letter-spacing:-.8px}.landing h3{margin:0 0 8px;color:var(--text-strong);font-size:18px;font-weight:600;line-height:1.3}.landing-section p{margin:0;color:var(--text-muted)}.landing-section-head p{font-size:18px}.landing-grid{display:grid;gap:16px}.landing-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface-panel)}.landing-video-section .landing-section-head{margin-inline:auto;text-align:center}.landing-video-frame{position:relative;max-width:1040px;margin:0 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summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;color:var(--text-strong);font-weight:600;cursor:pointer;list-style:none}.landing-faq summary::-webkit-details-marker{display:none}.landing-faq summary:after{content:"+";flex:none;color:var(--accent-text);font:500 22px/1 var(--font-display);transition:transform .15s}.landing-faq details[open] summary:after{transform:rotate(45deg)}.landing-faq details p{padding:0 20px 18px}.landing-final{display:grid;justify-items:start;gap:20px;margin:0;padding:64px 0 72px;border-top:1px solid var(--line)}.landing-final h2{margin:0}.landing-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;max-width:1200px;margin:0 auto;padding:28px 24px 40px;border-top:1px solid var(--line);color:var(--text-subtle);font-size:14px}.landing-footer-languages{display:flex;gap:14px}.landing-footer a{text-decoration:none}.landing-footer a:hover{color:var(--text-strong);text-decoration:underline}@media(max-width:1080px){.landing-device-list{grid-template-columns:repeat(5,minmax(0,1fr))}.landing-sections{display:none}}@media(max-width:860px){.landing-hero,.landing-split,.landing-split-reverse{grid-template-columns:minmax(0,1fr);gap:36px}.landing-split-reverse .landing-window{order:2}.landing-hero{padding:44px 0 36px}.landing-faq-list{grid-template-columns:minmax(0,1fr)}.landing-section{padding:48px 0}.landing-split .landing-window img{max-height:240px;object-fit:cover;object-position:top left}}@media(max-width:560px){.landing-bar{gap:8px;padding:10px 16px}main{padding:0 16px}.brand-wordmark{display:none}.landing-nav a{padding:6px 7px}.landing-button-small{padding:7px 10px;font-size:13px}.landing-actions .landing-button{width:100%}.landing-device-list{grid-template-columns:repeat(3,minmax(0,1fr))}.landing-video::cue{font-size:14px}.landing-final{padding:44px 0 52px}.landing-footer{padding:24px 16px 32px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.landing-button{transition:none}}.landing-grid-4{grid-template-columns:repeat(4,minmax(0,1fr));align-items:stretch}.landing-grid-4>.landing-plan{height:100%}.landing-plan{display:flex;flex-direction:column;gap:10px}.landing-plan h3,.landing-plan p{margin:0}.landing-price{display:grid;gap:2px}.landing-price strong{color:var(--text-strong);font:700 30px / 1.1 var(--font-display);letter-spacing:-.5px;white-space:nowrap}.landing-price span{color:var(--text-muted);font-size:14px}.landing-plan-trial{color:var(--ok)!important;font-size:14px;font-weight:600}.landing-plan-pay{display:grid;gap:8px}.landing-plan-pay[hidden]{display:none}.landing-plan-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;background:var(--surface-sunken)}.landing-plan-switch button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:0;padding:7px 4px;border:0;border-radius:999px;background:transparent;color:var(--text-muted);cursor:pointer;font-family:inherit;font-size:13px;white-space:nowrap;font-weight:600;line-height:1.2}.landing-plan-switch button:hover{color:var(--text-strong)}.landing-plan-switch button[aria-pressed=true]{background:var(--text-strong);color:var(--surface-raised)}.landing-plan-switch button:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.landing-plan-switch-tag{padding:0 6px;border:1.5px solid currentColor;border-radius:999px;font-size:10.5px;font-weight:700;letter-spacing:.3px}.landing-section .landing-plan-pay-note{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:-4px 0 0;color:var(--text-muted);font-size:13px}.landing-plan-pay-note .landing-plan-switch-tag{color:var(--text-strong)}.landing-plan-action{margin-top:auto}.landing .landing-pricing-note{margin:20px 0 0;color:var(--text-muted);font-size:14px}.landing-pricing-note a{color:var(--accent-text)}.landing-footer-legal{display:flex;gap:14px}.landing-footer-button{padding:0;border:0;background:none;color:inherit;font:inherit;cursor:pointer}.landing-footer-button:hover{color:var(--text-strong);text-decoration:underline}@media(max-width:980px){.landing-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.landing-grid-4{grid-template-columns:minmax(0,1fr)}}.landing .landing-compare{margin-right:10px;color:var(--accent-text);font-weight:600}.landing-learn{display:grid;gap:10px;margin:18px 0 20px;padding:0;list-style:none}.landing-learn li{padding:12px 14px;border:1px solid var(--line);border-left:3px solid var(--accent-solid);border-radius:var(--radius);background:var(--surface-panel)}.landing-learn h3{margin:0 0 3px;color:var(--text-strong);font:600 16px/1.3 var(--font-display)}.landing-learn p{margin:0;color:var(--text-muted);font-size:15px;line-height:1.5}.landing-split .landing-fine-print{margin:0;color:var(--text-muted);font-size:13px}.landing-who-pro{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}.landing-who-pro:not([hidden]){display:grid;gap:10px}.landing-who-pro p{margin:0;color:var(--text-muted)}.landing .landing-pro-link{justify-self:start;color:var(--accent-text);font-weight:600;text-decoration:none}.landing-pro-link:hover{text-decoration:underline}.landing-hero-copy{min-width:0}.landing-actions{align-items:center}.landing .landing-course-link{color:var(--accent-text);font-weight:600;text-decoration:none}.landing-course-link:hover{text-decoration:underline}.landing-facts{margin:24px 0 0;color:var(--text-muted);font:400 13px/1.6 var(--font-mono)}.landing-label{color:var(--text-subtle);font:600 12px/1.3 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.landing-bench{min-width:0;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--surface-panel)}.landing-bench-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 12px;padding:10px 14px;border-bottom:1px solid var(--line)}.landing-bench-title{color:var(--text);font:600 12px/1.3 var(--font-mono);letter-spacing:.08em;text-transform:uppercase}.landing-bench-controls{display:flex;flex-wrap:wrap;gap:8px}.landing-bench-wiring{display:inline-flex;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius)}.landing-bench-wiring button,.landing-bench-switch{padding:7px 10px;border:0;background:transparent;color:var(--text-muted);font:500 12.5px/1.2 var(--font-mono);cursor:pointer}.landing-bench-wiring button[aria-pressed=true]{background:var(--text-strong);color:var(--surface-panel)}.landing-bench-switch{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface-app);color:var(--text);font-weight:600}.landing-bench-switch[aria-pressed=true]{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}.landing-bench button:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.landing-bench-canvas{background-color:var(--surface-canvas);background-image:radial-gradient(var(--xy-background-pattern-color) 1px,transparent 1px);background-size:16px 16px}.landing-board{display:block;width:100%;height:auto}.landing-board-narrow{display:none}.landing-board text{fill:var(--text-muted);font:500 11px var(--font-mono)}.landing-board .landing-device-name{fill:var(--text-strong);font:600 12px var(--font-sans)}.landing-device{fill:var(--surface-node);stroke:var(--line-node);stroke-width:1.2}.landing-terminal{fill:var(--surface-node);stroke-width:2}.landing-terminal-l{stroke:var(--conductor-l1)}.landing-terminal-n{stroke:var(--conductor-n)}.landing-terminal-pe{stroke:var(--conductor-pe)}.landing-wire{fill:none;stroke-width:2.4;stroke-linejoin:round;opacity:.45;transition:opacity .3s,stroke-width .2s}.landing-wire-l{stroke:var(--conductor-l1)}.landing-wire-n{stroke:var(--conductor-n)}.landing-wire-pe{stroke:var(--conductor-pe);stroke-dasharray:6 4}.landing-wire-live{opacity:1;stroke-width:4;stroke-dasharray:10 6;animation:landing-current .7s linear infinite}@keyframes landing-current{to{stroke-dashoffset:-16}}:root[data-wiring=nec] .landing-wire{opacity:.8}:root[data-wiring=nec] .landing-wire-live{opacity:1}:root[data-wiring=nec] .landing-wire-l,:root[data-wiring=nec] .landing-terminal-l{filter:drop-shadow(1.2px 0 0 var(--conductor-outline)) drop-shadow(-1.2px 0 0 var(--conductor-outline)) drop-shadow(0 1.2px 0 var(--conductor-outline)) drop-shadow(0 -1.2px 0 var(--conductor-outline))}:root[data-wiring=nec] .landing-wire-n{filter:drop-shadow(0 0 1px var(--conductor-n-outline)) drop-shadow(0 0 .5px var(--conductor-n-outline))}.landing-bench[data-wiring=ok] [data-wire=n-bad],.landing-bench[data-wiring=bad] [data-wire=n-ok]{opacity:0}.landing-nbar{fill:var(--line-strong)}.landing-lamp{fill:var(--surface-node);stroke:var(--line-node);stroke-width:1.5;transition:fill .2s}.landing-lamp-cross{stroke:var(--text-muted);stroke-width:1.5}.landing-bench[data-switch=on][data-tripped=false] .landing-lamp{fill:var(--warn)}.landing-contact{stroke:var(--text-strong);stroke-width:2;stroke-linecap:round;transform:rotate(-24deg);transform-box:fill-box;transform-origin:left center;transition:transform .2s}.landing-bench[data-switch=on] .landing-contact{transform:none}.landing-board 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var(--font-mono)}.landing-verdict-bad{color:var(--danger)}.landing-bench-results,.landing-bench-switch{display:inline-grid}.landing-bench-results{display:grid}.landing-bench-results>*,.landing-bench-switch>*{grid-area:1 / 1}.landing-bench-results>div{display:grid;align-content:start;gap:4px}.landing-bench-results>:not([data-current]),.landing-bench-switch>[aria-hidden]{visibility:hidden}.landing-sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.landing-bench-finding{margin:0;color:var(--text-muted);font-size:14px;line-height:1.45}.landing-bench-read p,.landing-bench-foot{margin:0}.landing-bench-foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;padding:10px 14px;border-top:1px solid var(--line);color:var(--text-muted);font-size:13px}.landing .landing-bench-foot a{color:var(--accent-text);font-weight:600;text-decoration:none}.landing-bench-foot a:hover{text-decoration:underline}.landing-pipeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin:0;padding:0;overflow:hidden;border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--surface-panel);list-style:none}.landing-pipeline li{position:relative;display:grid;align-content:start;gap:8px;min-width:0;padding:18px}.landing-pipeline li+li{border-left:1px solid var(--line)}.landing-pipeline li+li:before{content:"→";position:absolute;top:15px;left:-9px;padding:0 2px;background:var(--surface-panel);color:var(--text-subtle);font:14px var(--font-mono)}.landing-pipeline p{font-size:15px}.landing-pipeline code{color:var(--text-muted);font:12.5px/1.6 var(--font-mono);white-space:pre-line}.landing-examples{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.landing-example{display:grid;grid-template-columns:9.5em minmax(0,1fr);align-content:start;gap:6px 12px;margin:0;padding:16px 18px;border:1px solid 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