:root{color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#e7f6f3;background:#061317;--mint:#59e8bb;--muted:#8da9ab}*{box-sizing:border-box}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;border:1px solid #294347;color:inherit;background:#122c30;border-radius:12px;padding:12px 16px;font-weight:650}button:hover{filter:brightness(1.12)}button:focus-visible,a:focus-visible{outline:3px solid #ffda78;outline-offset:3px}button:disabled{cursor:default;opacity:.65}button[hidden],[hidden]{display:none!important}header{height:86px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid #25383b;gap:12px}.brand{display:flex;gap:12px;align-items:center;color:#e8fff7;text-decoration:none;font-size:15px;letter-spacing:2px;font-weight:850}.brand small{display:block;font-weight:500;color:var(--muted);font-size:9px;letter-spacing:2.5px;margin-top:4px}.brand-icon{width:42px;height:42px;background:var(--mint);color:#073b32;display:grid;place-items:center;font-size:38px;border-radius:12px}.header-right{display:flex;gap:10px;align-items:center}.prototype{color:#739494;font-size:10px;letter-spacing:2px;margin-right:10px}#help{border-radius:50%;width:38px;height:38px;padding:0}#fullscreen{font-size:12px;padding:9px 12px}main{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;padding:24px 28px;max-width:1800px;margin:auto;height:calc(100dvh - 86px);min-height:590px}.workspace{position:relative;overflow:hidden;border:1px solid #325054;border-radius:20px;background:#102e33;isolation:isolate}canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}.room-label{position:absolute;top:22px;left:22px;font-size:10px;letter-spacing:2px;display:flex;gap:10px;align-items:center;pointer-events:none}.room-label>span:last-child{color:#9eb9b9;border-left:1px solid #698a8666;padding-left:10px;font-size:8px}.live-dot{width:6px;height:6px;border-radius:50%;background:var(--mint);box-shadow:0 0 10px var(--mint)}#reticle{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);color:#f4ffdfb0;font-size:23px;pointer-events:none;font-weight:200}.destination{position:absolute;left:50%;top:65px;transform:translateX(-50%);background:#0a2426b8;border:1px solid #6b9c8e66;padding:8px 13px;border-radius:20px;white-space:nowrap;font-size:9px;letter-spacing:1.2px;color:#ccf9df;pointer-events:none}#toast{position:absolute;top:105px;left:15%;right:15%;text-align:center;font-size:13px;color:#fff2b0;pointer-events:none;text-shadow:0 2px 5px #000}.inventory{position:absolute;left:22px;bottom:78px;display:flex;align-items:center;gap:10px;background:#061b20c9;border:1px solid #527b7766;border-radius:12px;padding:11px 15px;pointer-events:none}.inventory>span:first-child{font-size:27px;color:var(--mint)}.inventory>span:last-child{font-size:8px;letter-spacing:1.5px;color:#86b7b2}.inventory strong{display:block;font-size:12px;color:#f2faf4;letter-spacing:0;margin-top:4px}.action{position:absolute;right:22px;bottom:78px;background:#59e8bb;color:#073b32;border:0;min-width:180px;padding:16px 20px;box-shadow:0 6px 25px #0004;font-size:13px}.action:disabled{background:#173b40;color:#b4ceca;border:1px solid #416669}.desktop-tip{position:absolute;bottom:24px;left:0;width:100%;font-size:10px;color:#acc5c2;text-align:center;letter-spacing:.4px;pointer-events:none}.desktop-tip b{margin-left:14px;color:#eafaf5}aside{padding:10px 3px;display:flex;flex-direction:column;min-height:0}.mission-tag{font-size:10px;letter-spacing:2px;color:var(--mint);display:flex;align-items:center;justify-content:space-between}.mission-tag span{font-size:8px;color:#8bb1a7;background:#11342c;padding:5px 8px;border-radius:5px;letter-spacing:1px}aside>h2{font-size:34px;line-height:1.1;font-weight:750;letter-spacing:-1.4px;margin:23px 0 13px}.mission-intro{font-size:12px;line-height:1.7;color:var(--muted);margin:0;max-width:240px}.steps{padding:0;list-style:none;display:grid;gap:20px;margin:29px 0}.steps li{display:flex;gap:13px;opacity:.5}.steps li.current,.steps li.done{opacity:1}.steps li>span{flex-shrink:0;width:27px;height:27px;border:1px solid #3c585b;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:750}.steps .current>span{background:var(--mint);color:#073b32;border-color:var(--mint);box-shadow:0 0 0 4px #59e8bb13}.steps .done>span{color:var(--mint);border-color:#287c62;background:#143d32}.steps b{font-size:12px}.steps p{font-size:11px;line-height:1.5;color:var(--muted);margin:4px 0 0}.component-card{margin-top:auto;border-radius:14px;background:linear-gradient(120deg,#183735,#10282c);border:1px solid #2c4b46;padding:15px;display:flex;gap:16px;align-items:center}.component-card svg{width:46px;height:75px;filter:drop-shadow(0 3px 12px #f3435733)}.component-card span{font-size:8px;letter-spacing:1.2px;color:#8db4a9}.component-card h3{font-size:16px;margin:7px 0}.component-card p{font-size:10px;line-height:1.6;color:#99b9b2;margin:0}.reset{background:none;border:0;color:#8faca8;font-size:10px;margin-top:8px}.scope{font-size:9px;line-height:1.6;color:#587773;text-align:center;margin:5px 10px}.overlay{position:absolute;inset:0;z-index:10;display:flex;align-items:center;justify-content:center;background:linear-gradient(90deg,#06191df5,#092626c9);padding:30px;backdrop-filter:blur(5px)}.welcome-card{width:100%;max-width:490px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2.5px;color:var(--mint)}h1{font-size:clamp(34px,4.6vw,65px);line-height:1.06;letter-spacing:-2.7px;margin:20px 0}h1 em{color:var(--mint);font-style:normal}.welcome-card>p{max-width:370px;font-size:14px;line-height:1.8;color:#a6c3bd}.journey{display:flex;gap:25px;margin:30px 0;color:#5e9b89;font-size:11px}.journey b{display:block;color:#d5e7df;margin-top:4px;font-size:12px}.primary{background:var(--mint);color:#073b32;border:0;padding:16px 23px;width:100%;font-size:13px;display:flex;justify-content:space-between;align-items:center}.welcome-card>small{display:block;color:#71988e;font-size:9px;margin-top:16px;text-align:center}.success-card{max-width:390px;text-align:center}.success-symbol{font-size:36px;background:#59e8bb;color:#073b32;width:70px;height:70px;border-radius:22px;display:grid;place-items:center;margin:0 auto 20px;box-shadow:0 0 65px #59e8bb44}.success-card h2{font-size:40px;letter-spacing:-1.5px;line-height:1.1;margin:16px 0}.success-card>p{font-size:13px;color:#b4d4c8;line-height:1.7}.learning{background:#214b3d77;border:1px solid #4a806444;padding:18px;border-radius:12px;font-size:12px;line-height:1.8;color:#b8d4c7;margin:20px 0}.learning b{color:#f1ffe9}.success-card .subtle{background:none;border:0;font-size:11px;margin-top:8px}.success-card .primary{justify-content:center}dialog{max-width:480px;background:#102b2e;border:1px solid #416460;border-radius:22px;color:#dcefe8;padding:32px}dialog::backdrop{background:#000b;backdrop-filter:blur(4px)}dialog h2{font-size:26px}dialog p{color:#a5c5bb;font-size:13px;line-height:1.8}.close{float:right;border:0;background:none;padding:0;font-size:24px}#bench{position:absolute;inset:0;background:radial-gradient(ellipse at 55% 50%,#294742,#102a30);z-index:2}.bench-heading{text-align:center;padding:48px 12px 8px;position:relative;z-index:2}.bench-heading>span{color:#71b5a3;font-size:9px;letter-spacing:2px}.bench-heading h2{font-size:22px;margin:9px 0}.bench-heading p{font-size:11px;color:#adc8ba;margin:0}.bench-surface{position:absolute;left:4%;right:4%;top:30%;bottom:6%;background:linear-gradient(125deg,#b4b2a0,#858e86);border:5px solid #637770;border-radius:22px;box-shadow:0 22px 0 #3e5857,0 30px 40px #0006;transform:perspective(1000px) rotateX(9deg)}.board{position:absolute;left:7%;top:12%;width:43%;height:67%;padding:15px 14px;background:#e4e9da;border-radius:10px;box-shadow:0 5px 0 #8b9b8d,0 10px 16px #0003;transform:rotate(-4deg);color:#7a8b7d}.board>span{font-size:6px;font-weight:800;letter-spacing:1px}.rails{font-size:9px;color:#d26369;line-height:1.6;margin:10px 0}.holes{height:55%;background:radial-gradient(#7b8f86 1.5px,transparent 2px) 0 0/12px 12px;border-top:10px solid #c5cebe;border-bottom:10px solid #c5cebe}#ledPiece{position:absolute;left:54%;top:9%;width:75px;height:125px;padding:7px;background:none;border:0;touch-action:none;z-index:4;filter:drop-shadow(5px 10px 3px #253f3855);cursor:grab}#ledPiece svg{width:100%;height:100%;pointer-events:none}#dropTarget{position:absolute;right:6%;top:20%;width:125px;height:155px;border:2px dashed #2c6a58;background:#315e4b22;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#1f4e3e;gap:8px}.target-led{font-size:50px;opacity:.5}#dropTarget strong{font-size:9px;letter-spacing:1px}#dropTarget small{font-size:10px}.bench-note{position:absolute;bottom:6%;left:7%;font-size:9px;line-height:1.8;color:#324d40}.bench-note strong{font-size:11px}#backWorkshop{position:absolute;bottom:20px;left:20px;z-index:5;background:#102d30e8;font-size:11px}#joystick,.touch-tip{display:none}@media(pointer:coarse){#joystick{display:block;position:absolute;left:25px;bottom:30px;width:100px;height:100px;border:1px solid #d1f9ed44;background:#123b3c77;border-radius:50%;touch-action:none;z-index:3}#stick{position:absolute;left:28px;top:28px;width:44px;height:44px;background:#92debfaa;border:2px solid #b9f7dd99;border-radius:50%;pointer-events:none}.desktop-tip{display:none}.inventory{bottom:150px;left:20px;padding:8px 12px}.action{bottom:50px;min-width:150px}.touch-tip{display:block;position:absolute;right:20px;bottom:20px;font-size:9px;color:#b1cfc4;pointer-events:none}}@media(max-width:1000px){main{grid-template-columns:minmax(0,1fr) 245px;gap:16px;padding:16px}header{padding:0 20px}aside>h2{font-size:29px}.steps{gap:15px;margin:23px 0}}@media(max-width:740px){header{height:65px;padding:0 14px}.brand{font-size:11px;letter-spacing:1.2px}.brand small{font-size:7px}.brand-icon{width:34px;height:34px;font-size:29px}.prototype,#fullscreen span{display:none}.header-right{gap:6px}main{height:auto;min-height:0;grid-template-columns:1fr;padding:10px;gap:12px}.workspace{height:calc(100dvh - 85px);min-height:470px;border-radius:15px}aside{padding:12px}.mission-intro,aside>h2,.component-card,.scope{display:none}.steps{grid-template-columns:1fr 1fr;gap:15px;margin:18px 0}.reset{align-self:flex-start}.overlay{padding:25px}.welcome-card{max-width:360px}h1{font-size:47px}.welcome-card>p{font-size:13px}.action{right:16px;font-size:12px;padding:14px;min-width:150px}.room-label{left:15px;top:17px}.destination{top:49px;font-size:8px}.inventory{left:16px}.bench-heading{padding-top:65px}.bench-heading h2{font-size:19px}.board{width:45%;left:4%;padding:10px}#dropTarget{right:4%;width:95px;height:135px}#ledPiece{left:48%;width:65px;height:110px}.bench-surface{top:32%;bottom:11%;left:2%;right:2%}.rails{overflow:hidden;white-space:nowrap}.bench-note{max-width:180px}}@media(max-height:550px) and (orientation:landscape){header{height:50px}main{height:calc(100dvh - 50px);min-height:0;grid-template-columns:minmax(0,1fr) 220px;padding:8px;gap:10px}.workspace{height:100%;min-height:0}aside{overflow:auto;padding:4px}.component-card,.scope,.mission-intro{display:none}aside>h2{font-size:23px;margin:10px 0}.steps{margin:10px 0;gap:10px}.steps p{font-size:9px}.welcome-card{max-width:460px}h1{font-size:34px;margin:10px 0}.welcome-card>p{margin:8px 0}.journey{margin:12px 0}.overlay{padding:20px}.welcome-card>small{margin-top:7px}#joystick{width:80px;height:80px;left:20px;bottom:15px}#stick{left:18px;top:18px}.inventory{bottom:105px}.action{bottom:35px}.destination{top:42px}.bench-heading{padding-top:25px}.bench-heading h2{font-size:18px;margin:4px}.bench-surface{top:30%;bottom:12%}.board{top:8%;height:76%}#ledPiece{height:90px}#dropTarget{height:95px;width:95px;top:12%}.target-led{font-size:30px}.bench-note{font-size:7px}.bench-note strong{font-size:8px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
/* Segunda experiencia: conexiones directas de baja tensión. */
.quick-start{display:block;width:100%;margin-top:10px;padding:10px;font-size:11px;background:#193e45;color:#b9d7ec}.circuit-shortcut{margin-top:12px;font-size:11px;background:#24445a;color:#bfe2ff;border-color:#42627b}.success-card>.subtle{margin-top:5px}.workspace:has(#circuit:not([hidden]))>.room-label{display:none}.workspace:has(#circuit:not([hidden]))>#toast{display:none}
#circuit{position:absolute;inset:0;z-index:4;display:flex;flex-direction:column;background:radial-gradient(ellipse at 20% 0,#183e4b,transparent 70%),#0b2228;overflow:hidden}.circuit-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:22px 24px 15px;border-bottom:1px solid #3b636466;background:#112e35}.circuit-top h2{font-size:25px;letter-spacing:-.7px;margin:7px 0;color:#fff0b5}.circuit-top p{margin:0;color:#bdd5d0;font-size:11px;line-height:1.6}.circuit-top .eyebrow{font-size:8px;letter-spacing:1.5px}.circuit-top>button{font-size:10px;padding:10px;flex-shrink:0}.circuit-scroll{overflow:auto;padding:18px 22px;flex:1;min-height:0}.circuit-desk{background:linear-gradient(135deg,#183c45,#102f38);border:1px solid #43646d;border-radius:17px;box-shadow:0 5px 0 #071a24;overflow:hidden}.desk-topline{display:flex;justify-content:space-between;gap:10px;padding:12px 15px;border-bottom:1px solid #37606b;background:#204958;font-size:8px;letter-spacing:1.1px;color:#c8e1e8}.desk-topline>span:last-child{color:#efd082}#circuitBoard{position:relative;aspect-ratio:600/340;min-height:280px;background:radial-gradient(#4f819355 .8px,transparent .9px) 0 0/15px 15px;isolation:isolate}#cables{position:absolute;inset:0;width:100%;height:100%;overflow:visible;z-index:3;pointer-events:none;filter:drop-shadow(0 3px 1px #0005)}.terminal{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:44px;height:44px;border:2px solid #e4f1f1;border-radius:50%;background:#234f60;box-shadow:0 0 0 4px #122d35,0 4px 8px #0006;padding:0;z-index:5;touch-action:manipulation}.terminal>span{font-size:20px;line-height:1}.terminal small{position:absolute;top:48px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:7px;letter-spacing:.4px;color:#e1f0eb;background:#102a31d9;padding:3px;border-radius:3px;pointer-events:none}.terminal.positive{background:#a53b4c;border-color:#ffbac5}.terminal.negative{background:#315e99;border-color:#b6d6ff}.terminal.resistor-port{background:#9b7037;border-color:#ffe1a3}.terminal.selected{outline:3px solid #fff18a;outline-offset:5px;box-shadow:0 0 28px #f8d66b88}.terminal:disabled{opacity:.85}.battery-part{position:absolute;left:4%;top:28%;width:12%;height:40%;background:linear-gradient(90deg,#d58932,#f5b54f 45%,#c77b2e);border:2px solid #ffd995;border-radius:7px;box-shadow:3px 6px 0 #07192488;display:flex;flex-direction:column;align-items:center;justify-content:center}.battery-part b{color:#18323a;font-size:24px;line-height:1}.battery-part>span{font-size:6px;letter-spacing:1px;color:#4e3b1e;margin-top:8px}.battery-cap{position:absolute;top:-8px;width:50%;height:7px;border-radius:3px 3px 0 0;background:#a8bdc7}.battery-stripe{width:100%;height:9px;background:#324b58;position:absolute;bottom:10px}.resistor-part{position:absolute;left:40%;top:30%;width:28%;height:25px;transform:translateY(-50%);display:flex;align-items:center;justify-content:center;z-index:2}.resistor-wire{position:absolute;inset:11px 0 auto;height:4px;background:#bdd2d8}.resistor-body{width:70%;height:28px;position:relative;border-radius:11px;background:linear-gradient(#fcebc3,#d8c49b);border:1px solid #fff4d1;display:flex;justify-content:space-around;align-items:stretch;overflow:hidden;padding:0 10px;box-shadow:0 4px 0 #0003}.resistor-body i{width:7px;background:#c9a925}.resistor-body i:first-child{background:#e9c32e}.resistor-body i:nth-child(2){background:#7851b4}.resistor-body i:nth-child(3){background:#954c2f}.resistor-body i:nth-child(4){background:#c2a751;margin-left:8px}.resistor-part>b{position:absolute;top:40px;font-size:11px;color:#f9dfa2}.led-part{position:absolute;left:78%;top:32%;width:13%;height:32%;display:flex;justify-content:center;z-index:2}.led-bulb{position:absolute;width:45px;height:60px;border-radius:26px 26px 8px 8px;background:linear-gradient(95deg,#971f40,#ee596c 50%,#a52848);border:2px solid #fa8191;bottom:23px;z-index:2;transition:background .15s,box-shadow .15s}.led-bulb:after{content:'';position:absolute;bottom:-5px;left:-6px;right:-6px;height:9px;background:#a1304c;border:1px solid #f17a8c;border-radius:4px}.led-bulb>span{position:absolute;top:8px;left:8px;width:8px;height:24px;border-radius:5px;background:#ffc6d2aa}.led-bulb.lit{background:linear-gradient(90deg,#ff314f,#fff0ae 50%,#ff465e);border-color:#fff1b9;box-shadow:0 0 18px #ff9e7a,0 0 50px 15px #ff65586b,0 0 100px #ff515144}.led-legs{position:absolute;bottom:0;width:90%;height:35px;border-left:3px solid #b8cbd2;border-right:3px solid #b8cbd2}.led-part>b{position:absolute;top:-19px;color:#ffbdcb;font-size:8px;white-space:nowrap;letter-spacing:.8px}.part-label{position:absolute;font-size:8px;letter-spacing:1px;color:#a6c3ca}.battery-label{left:4%;top:81%;color:#f0cb88}.resistance-label{left:45%;top:12%;color:#f0dca4}.connection-hint{font-size:11px;line-height:1.65;min-height:49px;padding:12px 16px;background:#0d2831;border-top:1px solid #365863;color:#fff0b1}.circuit-tools{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 12px}.circuit-tools button{font-size:10px;padding:11px 13px}.power-button{background:#f0be54;color:#293827;border-color:#ffdf90}.power-button.powered{background:#e46c6c;color:#fff3ed;border-color:#ffa8a2}.hint-button{background:#34304d;color:#ded1ff;border-color:#70638e}.circuit-result{display:flex;gap:13px;background:#15343e;border:1px solid #3e6370;padding:15px;border-radius:12px;align-items:flex-start}.result-icon{color:#a6c9d7;font-size:25px;line-height:1}.circuit-result b{font-size:12px;color:#d3e9ed}.circuit-result p{font-size:11px;line-height:1.7;margin:5px 0 0;color:#a9c6cc}.circuit-result[data-state=on]{background:#163f33;border-color:#459b6e}.circuit-result[data-state=on] b,.circuit-result[data-state=on] .result-icon{color:#9df6bf}.circuit-result:not([data-state=off]):not([data-state=on]){border-color:#ae8646;background:#423c273d}.circuit-result:not([data-state=off]):not([data-state=on]) b{color:#f0d092}.connection-list{font-size:10px;color:#9ebbc2;margin-top:14px}.connection-list summary{cursor:pointer;padding:8px 0}.connection-list summary span{background:#294955;border-radius:20px;padding:2px 7px;margin-left:5px}.connection-list ul{padding:0;list-style:none;margin:8px 0}.connection-list li{display:flex;gap:10px;align-items:center;justify-content:space-between;border-top:1px solid #31505a;padding:8px 0;font-size:10px}.connection-list button{padding:5px 8px;font-size:9px}.simulation-note{color:#789aa4;font-size:9px;line-height:1.8;max-width:620px;margin:14px 0 0}#circuitDone{z-index:8}.workspace:has(#circuit:not([hidden])) .touch-tip{display:none}#circuitDone .success-card h2{font-size:34px}
@media(max-width:740px){.circuit-top{padding:17px 13px 12px;gap:8px}.circuit-top h2{font-size:22px}.circuit-top p{font-size:10px;max-width:240px}.circuit-top .eyebrow{font-size:7px}.circuit-top>button{padding:8px;font-size:9px}.circuit-scroll{padding:13px 9px}.desk-topline{font-size:6px;padding:10px 8px;letter-spacing:.5px}#circuitBoard{min-height:270px}.terminal{width:40px;height:40px}.terminal small{top:43px;font-size:6px;letter-spacing:0}.terminal>span{font-size:18px}.battery-part b{font-size:20px}.battery-part>span{font-size:5px}.resistor-body{padding:0 3px;height:23px}.resistor-body i{width:5px}.resistor-part>b{font-size:10px;top:39px}.led-bulb{width:35px;height:49px}.led-part>b{font-size:7px}.circuit-tools{gap:6px;margin:14px 0 10px}.circuit-tools button{padding:11px 9px;font-size:9px}.power-button{flex:1 1 140px}.connection-hint{padding:11px;font-size:10px}.part-label{font-size:7px}.connection-list li{font-size:9px}.circuit-result{padding:12px}.circuit-result p{font-size:10px}.circuit-result b{font-size:11px}}
@media(max-height:550px) and (orientation:landscape){.circuit-top{padding:9px 14px}.circuit-top h2{font-size:18px;margin:3px 0}.circuit-top p{font-size:9px}.circuit-scroll{padding:12px}.circuit-desk{max-width:650px;margin:auto}.circuit-top .eyebrow{font-size:7px}#circuitBoard{min-height:260px}}
/* 0.3: width is explicit; the minimum height must never expand the board sideways. */
.workspace,.circuit-scroll,.circuit-desk{min-width:0;max-width:100%}
.circuit-desk{width:100%;container-type:inline-size;container-name:circuit-table}
#circuitBoard{width:100%;min-width:0;max-width:100%;aspect-ratio:auto;height:340px;min-height:0;overflow:visible}
.terminal{touch-action:none;user-select:none;-webkit-user-select:none;min-width:44px;min-height:44px}
.terminal.cable-target{outline:3px solid #b4ffd2;outline-offset:5px;box-shadow:0 0 24px #83efaf99}
@container circuit-table (max-width:500px){
 #circuitBoard{height:320px}
 .terminal{width:44px;height:44px}
 .terminal[data-port=P]{left:20%;top:26%}
 .terminal[data-port=N]{left:20%;top:68%}
 .terminal[data-port=R1]{left:43%;top:26%}
 .terminal[data-port=R2]{left:77%;top:26%}
 .terminal[data-port=A]{left:62%;top:76%}
 .terminal[data-port=K]{left:85%;top:76%}
 .battery-part{left:3%;top:24%;width:12%;height:46%}
 .battery-label{left:3%;top:85%}
 .resistor-part{left:43%;top:26%;width:34%}
 .resistance-label{left:46%;top:7%}
 .led-part{left:62%;top:42%;width:23%;height:34%}
 .led-part>b{top:-17px;left:50%;transform:translateX(-50%)}
 .terminal small{font-size:7px;top:47px}
 .resistor-part>b{top:37px}
 .connection-hint{min-height:58px}
}
@supports not (container-type:inline-size){@media(max-width:740px){#circuitBoard{height:320px}.terminal[data-port=A]{left:62%;top:76%}.terminal[data-port=K]{left:85%;top:76%}.led-part{left:62%;top:42%;width:23%;height:34%}}}
.room-label{background:#0b2d34c9;border:1px solid #50707555;padding:8px 10px;border-radius:9px}#reticle{text-shadow:0 1px 3px #07191c,0 0 2px #07191c}
/* 0.4: colección de tres componentes, con una sola pieza en las manos. */
.route-help{position:absolute;right:17px;top:20px;font-size:9px;padding:8px 10px;background:#123740d9;color:#e5e9c2;border-color:#6c815d;z-index:1}.route-help[aria-pressed=true]{background:#52662b;color:#fff5bd}.kit-hud{position:absolute;left:20px;right:20px;top:102px;pointer-events:none}.kit-hud>span{display:inline-block;background:#0a2932cf;border:1px solid #55757688;border-radius:6px;padding:5px 8px;color:#e2f0dc;font-size:9px;letter-spacing:.7px}.kit-hud>div{display:flex;gap:6px;margin-top:7px;flex-wrap:wrap}.kit-hud>div>span{background:#0a2731df;border:1px solid #436268;border-radius:7px;padding:5px 8px;font-size:9px;color:#9fb7ba}.kit-hud>div>span[data-state=held]{border-color:#d4b55a;color:#fff3af;background:#574a2599}.kit-hud>div>span[data-state=delivered]{border-color:#65ba8b;color:#b6f5cb;background:#183c31cc}.kit-tray{position:absolute;left:5%;top:12%;width:44%;height:68%;background:#dbe3d7;border:2px solid #f2f6e4;border-radius:13px;box-shadow:0 5px 0 #738b79;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-template-rows:32px 1fr;gap:5px;padding:8px;color:#466759}.kit-tray>span{grid-column:1/-1;font-size:7px;font-weight:800;letter-spacing:.7px;align-self:center;text-align:center}.tray-slot{border:1px dashed #7c9f8b;border-radius:8px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:12px;background:#c3d0c5;min-width:0;overflow:hidden}.tray-slot svg{width:80%;height:80px;filter:grayscale(1);opacity:.2}.tray-slot>span{font-size:8px;max-width:100%;overflow-wrap:anywhere;text-align:center;padding:0 2px}.tray-slot[data-state=delivered]{background:#c3dcc9;border-style:solid;border-color:#44936e}.tray-slot[data-state=delivered] svg{filter:none;opacity:1}.target-shape{height:65px;display:block;opacity:.3;filter:grayscale(1)}.target-shape svg{height:100%;width:45px}.begin-circuit{position:absolute;bottom:4%;right:4%;background:#5ce6b6;color:#123e32;font-size:11px;padding:12px;z-index:5}.bench-note{max-width:43%;font-size:9px;line-height:1.6}#ledPiece{cursor:grab}#dropTarget small{max-width:100%;font-size:9px}
@media(max-width:740px){.route-help{top:17px;right:12px;font-size:8px;padding:7px 8px}.room-label>span:last-child{display:none}.kit-hud{left:14px;right:14px;top:91px}.kit-hud>span{font-size:8px}.kit-hud>div>span{font-size:8px;padding:5px 7px}.kit-tray{left:3%;width:46%;top:12%;padding:5px;gap:3px;grid-template-rows:28px 1fr}.kit-tray>span{font-size:6px;letter-spacing:0}.tray-slot{gap:8px}.tray-slot svg{height:60px}.tray-slot>span{font-size:7px}.bench-note{font-size:8px;left:4%;bottom:5%;max-width:45%}.begin-circuit{font-size:10px;padding:9px;bottom:4%}}
@media(max-height:550px) and (orientation:landscape){.kit-hud{top:72px}.kit-hud>div{margin-top:4px}.kit-tray{top:6%;height:75%;grid-template-rows:20px 1fr}.tray-slot{gap:4px}.tray-slot svg{height:42px}.tray-slot>span{font-size:7px}.bench-note{font-size:7px;bottom:2%}.begin-circuit{font-size:9px;padding:8px}}
/* 0.5: cuatro retos y un interruptor físico en la mesa. */
.mission-menu{display:flex;gap:5px;margin:0;min-width:0}.mission-menu button{padding:9px 10px;font-size:10px;white-space:nowrap;background:#15313c;border-color:#365562;color:#bed5df}.mission-menu button[aria-pressed=true]{background:#315944;color:#d1ffe1;border-color:#7ece9a}.mission-menu button.mission-done:after{content:' ✓';color:#8eedaf}.mission-menu button:disabled{opacity:.35}.switch-part{position:absolute;left:32%;top:55%;width:20%;height:36px;transform:translateY(-50%);background:#4f3a6c;border:2px solid #ac8bd4;border-radius:9px;z-index:2;display:grid;place-items:center}.switch-part>span{position:absolute;top:-25px;left:50%;transform:translateX(-50%);font-size:8px;letter-spacing:.5px;white-space:nowrap;color:#d7c2fa}.switch-part>button{position:absolute;top:54px;left:50%;transform:translateX(-50%);min-height:44px;min-width:110px;white-space:nowrap;padding:9px 12px;font-size:10px;background:#36284c;border-color:#b297d4;color:#e5d6ff;box-shadow:0 4px 8px #0005;z-index:6}.switch-part>button.closed{background:#27654b;border-color:#80ddb0;color:#cdffe1}.terminal.switch-terminal{background:#624685;border-color:#d8c4fa}.mission-objective{font-size:10px;color:#dac7ff;line-height:1.8;border:1px solid #66587d;background:#33294499;padding:10px 13px;border-radius:10px;margin:13px 0 0}.repair-objective{background:#55452566;border-color:#9f854b;color:#ffdf94}#circuit[data-mission="3"] #circuitBoard{height:390px}#circuit[data-mission="3"] .terminal[data-port=A]{left:70%;top:76%}#circuit[data-mission="3"] .terminal[data-port=K]{left:91%;top:76%}#circuit[data-mission="3"] .led-part{left:70%;top:42%;width:21%;height:34%}#nextChallenge{justify-content:center;margin-bottom:9px}#circuitDone .success-card>.primary{margin-top:8px}.header-right .prototype{font-size:8px;letter-spacing:1px}
@media(max-width:1000px){header{gap:8px}.brand{font-size:12px;letter-spacing:1.5px}.mission-menu button{padding:9px 7px;font-size:9px}.header-right .prototype{display:none}#fullscreen span{display:none}}
@media(max-width:740px){header{height:auto;min-height:102px;flex-wrap:wrap;padding:10px 14px;gap:9px}.brand{font-size:11px}.mission-menu{order:3;width:100%;justify-content:stretch}.mission-menu button{flex:1;padding:8px 5px;font-size:9px}.workspace{height:calc(100dvh - 125px)}.switch-part>span{font-size:7px}.switch-part>button{font-size:9px;min-width:103px}.mission-objective{font-size:9px}#circuitDone .success-card h2{font-size:30px}#circuitDone .learning{padding:12px;margin:12px 0;font-size:11px}}
@media(max-height:550px) and (orientation:landscape){header{height:auto;min-height:50px;flex-wrap:nowrap;padding:5px 10px}.mission-menu{order:0;width:auto}.mission-menu button{font-size:8px;padding:7px}.brand small,.header-right .prototype{display:none}main{height:calc(100dvh - 60px)}.workspace{height:100%}.switch-part>button{top:50px}#circuitDone .success-card{max-width:440px}#circuitDone .success-symbol{display:none}#circuitDone .success-card h2{font-size:24px;margin:9px 0}#circuitDone .success-card>p{margin:7px 0;font-size:11px}#circuitDone .learning{font-size:10px;margin:8px 0;padding:8px}#circuitDone button{padding:10px;font-size:11px}}
@container circuit-table (max-width:500px){.switch-part>button{top:80px;min-width:88px;width:90px;padding:8px 4px;font-size:8px}}

/* 0.5.1: vista despejada y ayuda táctil legible. */
#kitHud{display:none!important}
@media(pointer:coarse){.touch-tip{left:50%;right:auto;bottom:22px;transform:translateX(-50%);width:max-content;max-width:calc(100% - 32px);padding:7px 11px;border:1px solid #527b7780;border-radius:9px;background:#061b20ed;color:#e7f6f3;font-size:11px;line-height:1.4;letter-spacing:0;text-align:center;z-index:4}}
/* Ocho retos: navegación compacta y mesa de motores. */
header{height:auto;min-height:86px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.mission-menu{order:3;width:100%;display:grid;grid-template-columns:repeat(8,minmax(0,1fr))}.mission-menu button{white-space:normal;min-height:36px}.header-right{margin-left:auto}main{height:calc(100dvh - 142px)}.destination{max-width:calc(100% - 28px);white-space:normal;text-align:center;line-height:1.5}.kit-tray{grid-template-columns:repeat(var(--kit-columns,3),minmax(0,1fr))}.tray-slot svg{max-width:100%}#motorPanel{position:absolute;inset:0;z-index:5;display:flex;flex-direction:column;background:radial-gradient(ellipse at 10% 0,#194554,transparent 70%),#0b2228;overflow:hidden}.workspace:has(#motorPanel:not([hidden]))>.room-label,.workspace:has(#motorPanel:not([hidden]))>#toast{display:none}#motorPanel .circuit-top{flex-shrink:0}.motor-bench{position:relative;max-width:860px;margin:0 auto;padding:16px}.motor-board{position:relative;height:400px;background:linear-gradient(120deg,#24444e,#132c35);border:1px solid #4a737b;border-radius:16px;touch-action:none}.motor-board svg{position:absolute;inset:0;width:100%;height:100%;z-index:2;pointer-events:none}.motor-terminal{position:absolute;transform:translate(-50%,-50%);width:44px;height:44px;padding:0;border-radius:50%;border:2px solid #a3e6da;background:#276c6a;z-index:4;touch-action:none;user-select:none}.motor-terminal.selected{outline:3px solid #ffe393;outline-offset:4px}.motor-terminal small{position:absolute;left:50%;top:46px;transform:translateX(-50%);font-size:9px;white-space:nowrap;color:#d4ede5;pointer-events:none}.motor-source{position:absolute;left:3%;top:35%;font-size:8px;letter-spacing:.5px;color:#f2d49b;text-align:center}.motor-source b{display:block;font-size:25px}.motor-device{position:absolute;left:75%;top:35%;width:14%;text-align:center}.motor-device>span{display:block;font-size:8px;color:#d4e9e5;white-space:nowrap;margin-top:10px}.rotor{width:64px;height:64px;position:relative;margin:auto;border:4px solid #74cac0;border-radius:50%;background:#13333c}.rotor:after{content:'';position:absolute;left:22px;top:22px;width:12px;height:12px;background:#e6e4b3;border-radius:50%}.rotor i{position:absolute;width:12px;height:27px;background:#5bd3bb;left:22px;top:0;transform-origin:6px 28px;border-radius:8px}.rotor i:nth-child(2){transform:rotate(120deg)}.rotor i:nth-child(3){transform:rotate(240deg)}.rotor.spinning{animation:motor-spin .5s linear infinite}@keyframes motor-spin{to{transform:rotate(360deg)}}.motor-switch-label{position:absolute;left:33%;top:11%;width:29%;text-align:center;font-size:10px;color:#d5b9f4;border:1px solid #9a7ab6;background:#483256;padding:10px;border-radius:10px}.pwm-label{position:absolute;left:28%;top:37%;width:29%;text-align:center;font-size:9px;line-height:1.7;color:#bceaf0;border:1px solid #6dabbc;background:#1d4e61;padding:10px 2px;border-radius:10px}.sensor-label{position:absolute;left:27%;top:70%;font-size:8px;color:#d4eca1}.motor-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:18px}.motor-controls>button{font-size:11px;min-height:44px}#pwmControl{font-size:12px;display:grid;gap:9px;flex:1;min-width:200px;color:#ccefe2}#pwmSlider{width:100%;accent-color:#59e8bb;min-height:35px}.rpm-display{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:#092128;border:1px solid #3e6e70;border-radius:12px;padding:14px;margin-top:16px;font-size:11px;color:#b4d6d0}.rpm-display strong{font-size:30px;color:#91f1cf;font-variant-numeric:tabular-nums;padding:0 6px}#motorTarget{color:#ffe3a0;font-size:10px}#rpmHold{width:100%;height:13px;accent-color:#59e8bb}.motor-tools{display:flex;gap:8px;flex-wrap:wrap}.motor-tools>button{font-size:10px;padding:10px}.motor-win{border:1px solid #82ddb7;background:#153f36;border-radius:16px;padding:24px;margin-top:20px}.motor-win h2{font-size:25px;color:#ceffe7}.motor-win p{font-size:13px;line-height:1.7;color:#c4e2d5}.motor-win .primary{margin-top:18px}.motor-win>button:last-child{width:100%;margin-top:8px;background:none;border:0;font-size:11px}
@media(max-width:740px){.mission-menu{grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}.mission-menu button{font-size:9px;min-height:30px}header{min-height:139px;padding:10px 14px}main{height:auto}.workspace{height:calc(100dvh - 160px);min-height:470px}.motor-bench{padding:10px}.motor-board{height:365px}.motor-terminal small{font-size:7px;top:46px}.motor-device{left:74%;width:18%}.rotor{width:47px;height:47px}.rotor:after{left:15px;top:15px;width:9px;height:9px}.rotor i{left:16px;top:0;width:8px;height:19px;transform-origin:4px 20px}.motor-source{left:2%;font-size:7px}.motor-source b{font-size:19px}.pwm-label{font-size:7px;left:27%;width:31%;padding:7px 2px}.motor-switch-label{font-size:8px;padding:8px}.sensor-label{font-size:7px}.motor-device>span{font-size:6px}#motorPanel .circuit-top{padding:15px 12px;gap:8px}#motorPanel .circuit-top h2{font-size:21px}#motorPanel .circuit-top p{font-size:10px}.motor-controls{gap:8px}.motor-controls>button{flex:1;padding:10px 8px}.rpm-display{padding:10px;gap:6px}.rpm-display strong{font-size:26px}.motor-win{padding:17px}.tray-slot>span{font-size:6px}.tray-slot svg{height:48px}}
@media(max-height:550px) and (orientation:landscape){header{min-height:97px}.mission-menu{grid-template-columns:repeat(8,minmax(0,1fr))}.brand small{display:block}main{height:calc(100dvh - 105px)}.workspace{height:100%;min-height:0}.motor-board{height:330px}#motorPanel .circuit-top{padding:9px 12px}#motorPanel .circuit-top h2{font-size:18px;margin:3px 0}}
@media(prefers-reduced-motion:reduce){.rotor.spinning{animation:none;box-shadow:0 0 14px #59e8bb99}}
/* 0.6.2: component miniatures and optional schematic references. */
.board-miniature{display:inline-flex;align-items:center;justify-content:center;flex:none;pointer-events:none}.board-miniature svg{display:block;width:25px;height:29px;overflow:visible}.board-miniature svg>text:last-child{display:none}.motor-source{left:2%;width:16%;top:35%;display:flex;align-items:center;justify-content:center;flex-direction:column;line-height:1.2}.motor-source>b{font-size:14px}.motor-source>.board-miniature{margin-bottom:1px}.motor-source>.board-miniature svg{height:22px;width:24px}.pwm-label{left:27%;width:31%;top:41%;height:32px;padding:2px 3px;display:flex;align-items:center;justify-content:center;gap:3px;font-size:8px;line-height:1.35}.pwm-label small{font-size:6px;white-space:nowrap}.pwm-label .board-miniature svg{width:21px;height:27px}.motor-switch-label{display:flex;align-items:center;justify-content:center;gap:5px;padding:3px;font-size:9px;height:34px}.motor-switch-label .board-miniature svg{height:27px;width:21px}.sensor-label{left:51%;top:72%;width:19%;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:7px;text-align:center}.sensor-label .board-miniature svg{height:23px;width:23px}.motor-body-miniature{position:absolute;right:calc(100% - 5px);top:5px;pointer-events:none}.motor-body-miniature svg{width:22px;height:37px}.motor-body-miniature svg>text{display:none}.component-references{border:1px solid #42646d;border-radius:11px;background:#0c2831;margin:15px 0;color:#c7e4df}.component-references>summary{cursor:pointer;padding:12px 14px;font-size:11px;min-height:42px;color:#b8ddd2}.component-references[open]>summary{border-bottom:1px solid #36575c}.reference-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;padding:12px}.reference-card{min-width:0;border:1px solid #33595f;border-radius:9px;background:#16343d;padding:9px 6px}.reference-card>strong{display:block;font-size:10px;line-height:1.4;text-align:center;font-weight:650;color:#deefe5;min-height:28px}.reference-pair{display:grid;grid-template-columns:1fr 1fr;gap:3px;align-items:end}.reference-pair>div{display:flex;flex-direction:column;align-items:center;min-width:0}.reference-pair small{font-size:8px;color:#9fc1ba;text-align:center;line-height:1.4;margin-top:4px}.reference-physical{height:47px;display:flex;align-items:center}.reference-physical svg{height:47px;width:34px;max-width:100%;overflow:visible}.reference-physical svg>text:last-child{font-size:8px}.reference-symbol{width:65px;max-width:100%;height:47px;color:#b7ead9}.reference-symbol text{fill:currentColor;stroke:none;font:17px system-ui}.reference-symbol .symbol-letter{font-size:25px}.reference-symbol .symbol-subtitle{font-size:8px}.reference-note{font-size:9px;line-height:1.6;color:#94b7b2;margin:0;padding:0 12px 12px}#circuit .component-references{margin-top:12px}
@media(max-width:740px){.reference-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:9px;gap:7px}.reference-card{padding:8px 5px}.reference-card>strong{font-size:9px}.component-references>summary{font-size:10px;padding:11px}.reference-pair small{font-size:7px}.pwm-label{font-size:6px;gap:1px;padding:1px;height:30px}.pwm-label small{font-size:5px}.pwm-label .board-miniature svg{width:17px;height:24px}.motor-source{font-size:6px}.motor-source>b{font-size:12px}.motor-source>.board-miniature svg{height:20px;width:20px}.motor-body-miniature svg{width:17px;height:30px}.motor-switch-label{font-size:7px}.sensor-label{font-size:6px}}