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@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Consent-first visitor insights, aligned with the Circuit Lab visual language. */
.visitor-consent{position:fixed;right:22px;bottom:22px;z-index:100;width:min(680px,calc(100% - 32px));display:flex;align-items:flex-end;justify-content:space-between;gap:22px;padding:19px 20px;border:1px solid #2b88b4;border-radius:10px;background:rgba(7,29,50,.98);box-shadow:0 22px 60px rgba(7,29,50,.28),0 0 35px rgba(8,113,184,.14);color:#effcff}.visitor-consent-copy{min-width:0}.visitor-consent-kicker{display:block;color:var(--cyan);font:9px var(--mono);letter-spacing:.13em}.visitor-consent h2{margin:8px 0 5px;color:#fff;font-size:17px;letter-spacing:-.04em}.visitor-consent p{margin:0;color:#b9ced0;font-size:12px;line-height:1.5}.visitor-consent p a{color:var(--cyan);text-underline-offset:3px}.visitor-consent-actions{display:flex;flex:0 0 auto;align-items:center;gap:8px}.visitor-consent button{border-radius:100px;padding:10px 12px;font:11px var(--sans);cursor:pointer;white-space:nowrap}.visitor-consent-secondary{border:1px solid #557683;background:transparent;color:#d0e0e0}.visitor-consent-primary{border:1px solid var(--cyan);background:var(--cyan);color:var(--ink);font-weight:700}.visitor-consent button:focus-visible{outline:2px solid var(--mint);outline-offset:3px}.visitor-consent-settings{position:fixed;right:16px;bottom:14px;z-index:99;border:1px solid var(--line);border-radius:100px;padding:7px 10px;background:rgba(7,29,50,.9);color:#d2e2e0;font:9px var(--mono);cursor:pointer}.visitor-consent-settings:hover{border-color:var(--blue);color:#fff}.visitor-consent-settings:focus-visible{outline:2px solid var(--blue);outline-offset:3px}@media(max-width:650px){.visitor-consent{right:16px;bottom:16px;width:calc(100% - 32px);display:block}.visitor-consent-actions{margin-top:15px;justify-content:flex-end}.visitor-consent button{flex:1}}

/* Hero revision: keep the introduction calm and let the bulb carry the visual cue. */
.hero{display:block;padding:86px 0 92px}
.hero-copy{max-width:1040px}
.hero-title-row{display:flex;align-items:center;gap:42px}
.hero h1{flex:1;max-width:none;font-size:clamp(3.15rem,5.45vw,5.9rem)}
.hero-bulb{flex:0 0 178px;width:178px;display:grid;justify-items:center;gap:13px;padding:16px 16px 14px;border:1px solid #bdd4d5;border-radius:14px;background:rgba(255,255,255,.56);box-shadow:12px 16px 32px rgba(7,29,50,.08);transform:rotate(3deg)}
.hero-bulb svg{width:112px;height:145px;overflow:visible}
.bulb-rays,.bulb-filament,.bulb-base{fill:none;stroke:var(--blue);stroke-linecap:round;stroke-linejoin:round}
.bulb-rays{stroke-width:3}
.bulb-glass{fill:rgba(201,255,117,.28);stroke:var(--blue);stroke-width:3}
.bulb-filament{stroke:var(--orange);stroke-width:3}
.bulb-base{stroke-width:4}
.hero-bulb span{color:var(--blue);font:9px var(--mono);letter-spacing:.1em}
@media(max-width:620px){.hero{padding:55px 0 76px}.hero-title-row{display:block}.hero h1{font-size:3.25rem}.hero-bulb{width:126px;flex-basis:auto;margin:24px 0 0 4px;padding:11px 10px 10px;transform:rotate(3deg)}.hero-bulb svg{width:82px;height:106px}.hero-bulb span{font-size:7px}.hero-lede{font-size:16px}}

.footer-links{display:flex;align-items:center;justify-content:flex-end;gap:16px;flex-wrap:wrap}.footer-links a{color:var(--muted);text-decoration:none}.footer-links a:hover{color:var(--blue)}
@media(max-width:620px){.footer-links{justify-content:flex-start;gap:12px;font-size:10px}}

.led-symbol.is-on{border-color:var(--mint);box-shadow:0 0 22px rgba(201,255,117,.55)}.led-symbol.is-on .led-glow{opacity:1;box-shadow:0 0 18px rgba(201,255,117,.98),0 0 7px var(--mint)}
.mcu-component{left:3%;top:23%;width:158px}.mcu-symbol{position:relative;display:grid;place-items:center;width:104px;height:82px;padding:12px 9px 10px;border:1px solid #2b88b4;border-radius:6px;background:linear-gradient(145deg,#165071,#071d32 82%);color:var(--cyan);box-shadow:0 0 20px rgba(8,113,184,.28),inset 0 0 0 4px rgba(169,237,255,.06)}.mcu-symbol::before,.mcu-symbol::after{content:"";position:absolute;top:12px;bottom:12px;width:13px;background:repeating-linear-gradient(to bottom,transparent 0 5px,var(--cyan) 5px 7px,transparent 7px 12px);opacity:.8}.mcu-symbol::before{left:-14px}.mcu-symbol::after{right:-14px}.mcu-symbol span,.mcu-symbol i{font:8px var(--mono);letter-spacing:.04em;white-space:nowrap}.mcu-symbol b{font-size:28px;line-height:1;letter-spacing:-.08em}.mcu-symbol i{color:var(--mint);font-style:normal}.port-mcu-gpio{right:-8px;top:46%;background:var(--blue)}.legend-gpio{background:var(--blue)}
@media(max-width:620px){.mcu-component{left:2%;top:21%;width:126px}.mcu-symbol{width:88px;height:76px;padding-left:5px;padding-right:5px}.mcu-symbol span,.mcu-symbol i{font-size:7px}.mcu-symbol b{font-size:23px}}

/* Make the controller face read like one coherent chip label. */
.mcu-component{width:174px;padding-left:8px;padding-right:8px}
.mcu-symbol{width:122px;height:92px;padding:10px 8px 8px;grid-template-rows:auto 1fr auto auto;gap:2px}
.mcu-symbol .mcu-kicker{font:7px var(--mono);letter-spacing:.16em;color:#82c8d9}
.mcu-symbol b{font-size:25px;letter-spacing:.02em;line-height:1;align-self:center}
.mcu-symbol strong{font:600 9px var(--mono);letter-spacing:.08em;color:#d7f7fa;white-space:nowrap}
.mcu-symbol i{font-size:7px;letter-spacing:.12em}
@media(max-width:620px){.mcu-component{width:140px;padding-left:5px;padding-right:5px}.mcu-symbol{width:102px;height:84px}.mcu-symbol b{font-size:21px}.mcu-symbol strong{font-size:7px}.mcu-symbol .mcu-kicker,.mcu-symbol i{font-size:6px}}

/* Give every connection point a clear working area for drag-and-drop wiring. */
.resistor-component{left:40%;top:54%}
.led-component{right:13%;top:17%}
@media(max-width:620px){.resistor-component{left:40%;top:52%}.led-component{right:4%;top:17%}}

/* Keep both learning windows visually consistent: the logic panel uses the same light surface as the wiring panel. */
.code-card{background:rgba(255,255,255,.62);color:var(--ink);border-color:#c3d4d3}
.code-card .card-kicker{color:var(--blue)}.code-card .card-header h3{color:var(--ink)}.code-card .card-copy{color:var(--muted)}
.code-card .text-button{color:var(--muted)}.mode-tabs{border-color:#c3d4d3;background:rgba(255,255,255,.55)}.mode-tab{color:var(--muted)}.mode-tab.is-active{background:var(--blue);color:var(--white)}
.palette-label{color:var(--muted)}.code-block{border-color:#c3d4d3;background:#f7fbfa;color:var(--ink)}.code-block:hover{border-color:var(--blue);background:#fff}.code-block small{color:var(--muted)}.code-block em{color:var(--blue)}
.drop-zone{border-color:#b8cfce;background:#f7fbfa}.drop-zone.is-over{border-color:var(--blue);background:#edf7f5}.drop-zone-top{color:var(--muted)}.drop-placeholder{color:var(--muted)}.drop-placeholder span{color:var(--blue)}.drop-placeholder small{color:var(--muted)}
.placed-block{background:#dff1ef;color:var(--ink)}.placed-block button{color:var(--muted)}.editor-bar{border-color:#c3d4d3;background:#f7fbfa;color:var(--muted)}#c-editor{border-color:#c3d4d3;background:#fff;color:var(--ink)}#c-editor:focus{border-color:var(--blue)}.editor-hint{color:var(--muted)}.code-footer{border-color:#d3e0df;color:var(--muted)}

/* Additional interactive learning examples. */
.examples{padding:18px 0 92px}.examples-intro{align-items:end;margin-bottom:28px}.examples-intro h2{margin:10px 0 0;font-size:clamp(2.5rem,4.5vw,4.8rem);line-height:.92;letter-spacing:-.08em}.examples-intro h2 em{font-style:normal;color:var(--blue)}.examples-intro p{max-width:360px}.examples-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.example-card{min-width:0;overflow:hidden;border:1px solid #c3d4d3;border-radius:10px;background:rgba(255,255,255,.68);box-shadow:0 8px 24px rgba(7,29,50,.04)}.example-top{display:flex;justify-content:space-between;gap:15px;padding:18px 22px 14px;border-bottom:1px solid #d7e3e1;color:var(--blue);font:9px var(--mono);letter-spacing:.09em}.example-top b{color:var(--muted);font-weight:500}.example-visual{display:flex;align-items:center;min-height:178px;padding:22px;background:linear-gradient(135deg,#071d32,#0b3550);color:#e7fbff}.mini-node{display:grid;place-items:center;flex:0 0 75px;height:75px;border:1px solid #2b88b4;border-radius:7px;background:linear-gradient(145deg,#165071,#071d32);box-shadow:0 0 18px rgba(8,113,184,.28),inset 0 0 0 4px rgba(169,237,255,.05)}.mini-node b{font:22px var(--mono);letter-spacing:-.08em}.mini-node small{color:var(--mint);font:8px var(--mono);letter-spacing:.08em}.mini-wire{height:2px;flex:1;min-width:24px;background:linear-gradient(90deg,var(--cyan),rgba(169,237,255,.35));box-shadow:0 0 8px rgba(169,237,255,.45)}.mini-wire-short{max-width:44px}.mini-button{display:grid;place-items:center;gap:7px;flex:0 0 66px;height:66px;border:1px solid #8cb4bc;border-radius:8px;background:#143c52;color:#bfeef4;cursor:pointer}.mini-button i{display:block;width:24px;height:24px;border:3px solid var(--orange);border-radius:50%;box-shadow:0 0 12px rgba(255,173,99,.24);transition:transform .15s,background .15s,box-shadow .15s}.mini-button span,.mini-led span{font:8px var(--mono);letter-spacing:.08em}.mini-button.is-pressed i{transform:translateY(3px);background:var(--orange);box-shadow:0 0 20px rgba(255,173,99,.8)}.mini-led{display:grid;justify-items:center;gap:7px;flex:0 0 58px;color:#bfeef4}.mini-led i{display:block;width:38px;height:38px;border:2px solid #7f9da4;border-radius:50%;background:#163447;transition:background .2s,box-shadow .2s,opacity .2s,transform .2s}.mini-led.is-on i{border-color:var(--mint);background:var(--mint);box-shadow:0 0 28px rgba(201,255,117,.9)}.pwm-led i{--pwm-level:.5;opacity:var(--pwm-level);transform:scale(calc(.78 + var(--pwm-level) * .22));background:var(--mint);border-color:var(--mint);box-shadow:0 0 calc(10px + var(--pwm-level) * 26px) rgba(201,255,117,.9)}.example-content{display:grid;gap:15px;padding:22px}.example-content .card-kicker{display:block}.example-content h3{margin:8px 0 7px;font-size:23px;letter-spacing:-.06em}.example-content p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.example-content pre{margin:0;min-height:92px;padding:14px;border:1px solid #c3d4d3;border-radius:6px;background:#f7fbfa;color:var(--ink);font:11px/1.65 var(--mono);overflow:auto}.example-content code{font:inherit}.example-action{display:flex;align-items:center;gap:12px}.example-control{padding:10px 14px;border:0;border-radius:100px;background:var(--ink);color:#fff;font-size:12px;font-weight:700;cursor:pointer}.example-control:hover{background:var(--blue)}.example-status{color:var(--muted);font:9px var(--mono);letter-spacing:.04em}.example-range{display:grid;grid-template-columns:1fr auto;gap:9px 14px;align-items:center;color:var(--muted);font:9px var(--mono);letter-spacing:.08em}.example-range output{color:var(--blue);font:11px var(--mono)}.example-range input{grid-column:1/-1;width:100%;accent-color:var(--blue);cursor:pointer}.examples+.closing{padding-top:62px}@media(max-width:760px){.examples-grid{grid-template-columns:1fr}.example-visual{min-height:160px}.examples-intro{display:block}.examples-intro p{margin-top:14px}}@media(max-width:620px){.examples{padding-top:0}.example-top{display:block}.example-top b{display:block;margin-top:6px}.example-content{padding:19px}.example-content h3{font-size:21px}.example-action{align-items:flex-start;flex-direction:column}.example-status{font-size:8px}}

/* Keep the example choice visible above the learning sequence. */
.example-selector{display:flex;align-items:center;gap:24px;margin-bottom:34px;padding:10px;border:1px solid #c3d4d3;border-radius:10px;background:rgba(255,255,255,.58)}.selector-label{display:grid;gap:3px;min-width:132px;padding:7px 10px}.selector-label span{color:var(--blue);font:8px var(--mono);letter-spacing:.14em}.selector-label strong{font-size:13px;letter-spacing:-.02em}.example-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));flex:1;gap:5px}.example-option{display:grid;grid-template-columns:auto 1fr;column-gap:9px;align-items:center;padding:10px 12px;border:1px solid transparent;border-radius:7px;color:var(--muted);text-decoration:none;transition:background .2s,border-color .2s,color .2s}.example-option span{grid-row:span 2;color:#8ca5a4;font:10px var(--mono)}.example-option strong{font-size:12px;line-height:1.1}.example-option small{font:8px var(--mono);letter-spacing:.06em}.example-option:hover{border-color:#b7d2d4;background:#f7fbfa;color:var(--ink)}.example-option.is-selected{border-color:var(--blue);background:var(--ink);color:#fff}.example-option.is-selected span,.example-option.is-selected small{color:var(--cyan)}.example-option:focus-visible{outline:2px solid var(--blue);outline-offset:2px}.examples-grid{grid-template-columns:1fr}.example-card{scroll-margin-top:28px}@media(max-width:760px){.example-selector{display:block}.selector-label{padding:5px 8px 10px}.example-picker{grid-template-columns:1fr}.example-option{padding:9px 10px}}
/* Keep the example selector available while scrolling. */
.example-selector{position:sticky;top:12px;z-index:12;background:rgba(238,245,243,.96);box-shadow:0 8px 20px rgba(7,29,50,.06)}