@charset "UTF-8";
:root{color-scheme:dark;--bg:#080f20;--panel:#111e35;--ink:#f1f5ff;--muted:#a7b7ce;--cyan:#70e9ff;--mint:#a7f3c6;--violet:#bcacff;--gold:#ffd58a;--line:#263a53;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:radial-gradient(ellipse at 84% 6%,#16284688,transparent 33%),radial-gradient(ellipse at 0 40%,#11304133,transparent 30%),var(--bg);color:var(--ink);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}svg{width:22px;height:22px;flex-shrink:0}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}::selection{background:#70e9ff44;color:#fff}[hidden]{display:none!important}.wrap{max-width:1240px;margin-inline:auto;padding-inline:32px}.stars{position:absolute;z-index:-1;inset:0 0 auto;height:1200px;pointer-events:none;background-image:radial-gradient(1px 1px at 12% 13%,#9ecce9 95%,transparent),radial-gradient(1px 1px at 88% 22%,#9ecce9 95%,transparent),radial-gradient(1px 1px at 36% 53%,#9ecce9 95%,transparent),radial-gradient(1px 1px at 62% 78%,#9ecce9 95%,transparent),radial-gradient(1px 1px at 93% 71%,#9ecce9 95%,transparent);background-size:430px 410px;opacity:.26}.mono,.eyebrow{font:10px/1.6 var(--mono);letter-spacing:1.7px}.eyebrow{color:var(--cyan);font-weight:700;margin:0 0 17px}.site-header{max-width:1376px;padding:28px 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;gap:12px;align-items:center;font-size:17px;letter-spacing:-.4px;white-space:nowrap}.brand>span:last-child{font-weight:800}.brand b{font-weight:400;color:#c9d6e8}.brand-mark{display:grid;place-items:center;width:37px;height:37px;border:1px solid #345469;background:linear-gradient(140deg,#1b3d4c,#102232);border-radius:10px;color:var(--cyan);box-shadow:0 0 20px #70e9ff07}.brand-mark svg{width:23px;height:23px}.site-header nav{display:flex;gap:32px;font-size:13px;color:var(--muted)}.site-header nav a:hover,.site-header nav a[aria-current]{color:var(--ink)}.header-launch{display:flex;align-items:center;gap:22px;font-size:12px;border:1px solid #355069;background:#10223588;padding:10px 15px;border-radius:6px}.header-launch svg{width:16px;height:16px;color:var(--cyan)}.header-launch:hover{border-color:var(--cyan)}.hero{display:grid;grid-template-columns:1fr 1.12fr;gap:48px;align-items:center;padding-top:70px;padding-bottom:66px}.hero-copy{padding-bottom:10px}.live-dot{display:inline-block;width:6px;height:6px;vertical-align:middle;border-radius:50%;background:var(--mint);box-shadow:0 0 12px var(--mint);margin-right:8px}.hero h1{font-size:clamp(42px,4.8vw,64px);font-weight:760;letter-spacing:-3.2px;line-height:1.08;margin:0 0 24px}.gradient-word{background:linear-gradient(95deg,#70e9ff 10%,#a7f3c6);background-clip:text;color:transparent}.hero-description{font-size:17px;line-height:1.75;color:var(--muted);margin:0 0 30px}.hero-actions{display:flex;align-items:center;gap:23px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:6px;font-size:13px;font-weight:700;transition:transform .18s,box-shadow .18s}.button svg{width:17px;height:17px}.primary{color:#062030;background:var(--cyan);box-shadow:0 0 28px #70e9ff0b}.primary:hover{background:#98f1ff;transform:translateY(-2px);box-shadow:0 5px 24px #70e9ff25}.text-link{display:inline-flex;align-items:center;gap:12px;font-size:12px;color:#d0dcec}.text-link:hover{color:var(--cyan)}.text-link svg{width:16px;height:16px}.hero-note{font-size:11px;display:flex;align-items:center;gap:10px;color:#8d9fb9;margin:28px 0 0}.mini-orbit{color:var(--mint);font-size:21px}.mission-window{position:relative;border:1px solid #35506b;border-radius:12px;background:linear-gradient(145deg,#14253be6,#101a2ee6);box-shadow:0 24px 90px #0004,0 0 70px #70e9ff08;transform:perspective(1500px) rotateY(-3deg) rotateX(1deg)}.mission-window:before{content:"";position:absolute;top:-1px;left:18%;right:18%;height:1px;background:linear-gradient(90deg,transparent,#70e9ff,transparent)}.window-bar{height:42px;border-bottom:1px solid #2a4058;display:flex;align-items:center;padding:0 17px;gap:12px;color:#8fa5bf;font:8px var(--mono);letter-spacing:1.2px}.window-dots{display:flex;gap:4px}.window-dots i{width:5px;height:5px;border-radius:50%;background:#3a536c}.window-dots i:first-child{background:#72acba}.window-signal{margin-left:auto;font-size:7px;letter-spacing:1px;display:flex;align-items:center;gap:5px}.window-signal i{width:4px;height:4px;border-radius:50%;background:var(--mint)}.mission-body{padding:22px 25px 20px}.mission-heading{display:flex;justify-content:space-between;align-items:center}.mission-heading .eyebrow{font-size:8px;letter-spacing:1.6px;margin:0}.mission-badge{border:1px solid #456077;border-radius:20px;padding:4px 9px;font:7px var(--mono);letter-spacing:1px;color:#c2d7ec}.mission-body h2{font-size:35px;line-height:1.2;letter-spacing:-1.8px;margin:15px 0 5px}.mission-body h2 span{color:var(--cyan);font-weight:350}.mission-body>p{margin:0;font-size:11px;color:var(--muted)}.orbit-map{height:251px;position:relative;margin-top:5px}.orbit-grid{position:absolute;inset:12px -10px;background:linear-gradient(#70e9ff05 1px,transparent 1px),linear-gradient(90deg,#70e9ff05 1px,transparent 1px);background-size:22px 22px;mask-image:radial-gradient(ellipse,#000,transparent 75%)}.orbit-lines{position:absolute;inset:0;width:100%;height:100%}.track,.pulse-path{fill:none;stroke:#345371;stroke-width:1;stroke-dasharray:3 5}.pulse-path{stroke:var(--cyan);stroke-dasharray:24 850;stroke-width:2;filter:drop-shadow(0 0 5px #70e9ff);animation:flight 9s linear infinite}.orbit-node{position:absolute;display:flex;align-items:center;flex-direction:column;gap:7px;transform:translate(-50%,-50%);font-size:9px;white-space:nowrap}.orbit-node>span:last-child{background:#142339e6;padding:2px 6px}.orbit-node b{font:8px var(--mono);color:var(--cyan);margin-right:4px}.orbit-symbol{display:grid;place-items:center;width:47px;height:47px;border:1px solid #547083;border-radius:12px;background:#132a3c;box-shadow:0 0 22px #70e9ff10;color:var(--cyan)}.orbit-symbol svg{width:21px;height:21px}.node-files{left:18%;top:29%}.node-stage{left:82%;top:29%}.node-commit{left:82%;top:76%}.node-github{left:18%;top:76%}.node-stage .orbit-symbol{color:var(--mint);border-color:#57857a;background:#163337}.node-commit .orbit-symbol{color:var(--gold);border-color:#7b694b;background:#302d2b}.node-github .orbit-symbol{color:var(--violet);border-color:#6a5b89;background:#29253e}.node-stage b{color:var(--mint)}.node-commit b{color:var(--gold)}.node-github b{color:var(--violet)}.orbit-core{position:absolute;left:50%;top:52%;transform:translate(-50%,-50%);text-align:center}.orbit-core span{display:block;font:7px var(--mono);letter-spacing:2px;color:#8da5bf}.orbit-core strong{font-weight:300;letter-spacing:-1px;font-size:25px;color:#a2d9e6}.mission-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:17px}.mission-bottom>span{font-size:9px;color:var(--muted);max-width:150px;line-height:1.8}.mission-bottom b{display:block;font-weight:500;color:#cfdeed}.launch-button{display:flex;align-items:center;gap:14px;color:var(--cyan);font-size:10px;padding:9px 10px;background:#152f41;border:1px solid #376478;border-radius:5px}.launch-button svg{width:14px;height:14px}.launch-button:hover{background:#1d4054}.course-strip{display:flex;align-items:center;gap:50px;border-block:1px solid var(--line);padding-block:22px}.course-strip>.mono{font-size:8px;color:#91a8bf;letter-spacing:1.3px;margin-right:auto}.course-strip>div{display:flex;align-items:center;gap:10px;font-size:11px;color:#b5c6dc}.course-strip svg{width:16px;height:16px;color:#71bacf}.section{padding-top:77px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:29px}.section-heading .eyebrow{font-size:9px;margin-bottom:10px}.section-heading h2{font-size:33px;line-height:1.3;letter-spacing:-1.2px;font-weight:680;margin:0 0 10px}.section-heading h2 span{font-weight:350;color:#bdcde2}.section-heading p:not(.eyebrow){margin:0;color:var(--muted);font-size:12px}.section-counter{font-size:8px;color:#8fa8c4;padding-bottom:7px;white-space:nowrap}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lesson-card{--accent:var(--cyan);position:relative;padding:24px 24px 0;background:linear-gradient(150deg,#17263b,#101b2e);border:1px solid #2e435e;border-radius:9px;overflow:hidden;transition:transform .2s,border-color .2s;display:flex;flex-direction:column}.mint{--accent:var(--mint)}.violet{--accent:var(--violet)}.cyan{--accent:var(--cyan)}.lesson-card:before{content:"";position:absolute;top:0;left:24px;right:24px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}.lesson-card:hover{transform:translateY(-4px);border-color:var(--accent)}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.card-top>.mono{color:var(--accent);font-size:9px}.card-icon{color:var(--accent);width:37px;height:37px;display:grid;place-items:center;border:1px solid #3c5468;border-radius:8px;background:#1d3043}.card-icon svg{width:19px;height:19px}.lesson-card h3{margin:0 0 12px;font-size:23px;font-weight:660;letter-spacing:-.8px}.lesson-card>p{color:var(--muted);font-size:12px;line-height:1.85;margin:0 0 23px}.tags{display:flex;flex-wrap:wrap;gap:6px}.tags span{font-size:9px;border:1px solid #344a61;border-radius:4px;padding:3px 7px;color:#bdcee3;background:#13223888}.lesson-card .tags{margin-top:auto;margin-bottom:24px}.card-foot{border-top:1px solid #2b4057;display:flex;align-items:center;justify-content:space-between;font-size:11px;font-weight:600;padding:15px 0;color:var(--accent)}.card-foot svg{width:16px;height:16px}.library-note{font-size:10px;color:#8fa3bf;margin:17px 0 0}.simulator-feature{display:grid;grid-template-columns:1.2fr 1fr;border:1px solid #2d435f;border-radius:10px;overflow:hidden;background:linear-gradient(130deg,#14243b,#101a2e)}.sim-preview{position:relative;display:flex;align-items:center;overflow:hidden;background:#0b1526;padding:29px 22px}.sim-preview img{width:100%;height:auto;border-radius:5px;border:1px solid #405673;transform:perspective(1200px) rotateY(5deg) rotateX(2deg);box-shadow:0 16px 50px #0006;transition:transform .25s}.sim-preview:hover img{transform:perspective(1200px) rotateY(0) rotateX(0)}.preview-launch{position:absolute;bottom:31px;left:50%;transform:translateX(-50%);white-space:nowrap;display:flex;gap:14px;align-items:center;padding:9px 13px;border-radius:5px;border:1px solid #70e9ff88;background:#0a2035ed;color:var(--cyan);font-size:11px;box-shadow:0 6px 22px #0006}.preview-launch svg{width:15px;height:15px}.sim-copy{padding:32px 35px 29px}.sim-copy .tags{margin-bottom:20px}.tags .tag-cyan{color:var(--cyan);border-color:#3a677b;font:8px/1.5 var(--mono);letter-spacing:.8px}.sim-copy h3{font-size:25px;font-weight:650;line-height:1.35;letter-spacing:-.8px;margin:0 0 14px}.sim-copy>p{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 18px}.check-list{padding:0;list-style:none;font-size:10px;color:#c0d1e5;margin:0 0 25px}.check-list li{padding:4px 0}.check-list li:before{content:'✓';color:var(--mint);margin-right:10px}.sim-copy .button{min-height:41px;font-size:11px}.offline-link{display:flex;align-items:center;gap:7px;font-size:10px;margin-top:15px;color:#b3c5dd}.offline-link svg{width:13px;height:13px}.offline-link:hover{color:var(--cyan)}.search-box{display:flex;align-items:center;gap:10px;border:1px solid #334c65;border-radius:6px;background:#101d30;padding:10px 12px}.search-box svg{width:16px;height:16px;color:#819db7}.search-box input{width:160px;border:0;background:transparent;color:var(--ink);outline-offset:9px;font-size:11px}.search-box input::placeholder{color:#90a5bf}.filters{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.filter{font-size:11px;border:1px solid #293f58;color:#a6b9d3;background:#101d30;padding:7px 12px;border-radius:5px;display:flex;align-items:center;gap:10px}.filter span{font:9px var(--mono);color:#a0b8c8}.filter.active{color:var(--cyan);border-color:#417184;background:#173242}.filter:hover{border-color:#62849d}.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.download-card{display:flex;align-items:center;gap:13px;height:92px;padding:17px;border:1px solid #263d56;border-radius:7px;background:linear-gradient(130deg,#111f33,#101b2d);transition:border-color .2s,background .2s}.download-card:hover{border-color:#577e93;background:#172a3e}.file-icon{display:grid;place-items:center;flex-shrink:0;width:38px;height:44px;border:1px solid #416476;border-radius:5px 10px 5px 5px;background:#18333e;color:var(--mint);font:8px var(--mono)}.file-icon.pdf{color:var(--violet);background:#28273e;border-color:#575276}.file-icon.txt{color:var(--gold);background:#302d2b;border-color:#6c5f49}.file-icon.html{color:var(--cyan);background:#173041;border-color:#356478}.download-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}.download-info strong{font-weight:600;font-size:11px;line-height:1.5}.download-info>span{font-size:9px;line-height:1.6;color:#94a9c3}.file-size{font:8px var(--mono);white-space:nowrap;color:#96abc1}.download-arrow{color:#8fc0d3;display:flex}.download-arrow svg{width:16px;height:16px}.download-help{font-size:10px;color:#91a8c3;margin:17px 0 0}.no-results{padding:35px;background:#112136;border:1px dashed #34536a;border-radius:7px;color:var(--muted);font-size:13px}.closing{display:flex;align-items:center;gap:24px;margin-top:70px;margin-bottom:60px;padding-block:30px;border-block:1px solid #2c435d;background:linear-gradient(90deg,transparent,#182c3c44,transparent)}.closing-icon{display:grid;place-items:center;width:47px;height:47px;border:1px solid #40606e;border-radius:12px;color:var(--mint);background:#18323c}.closing-icon svg{width:23px;height:23px}.closing .eyebrow{font-size:8px;letter-spacing:1.1px;color:#91bbcd;margin:0 0 7px}.closing h2{font-size:22px;font-weight:620;letter-spacing:-.5px;margin:0 0 6px}.closing p:not(.eyebrow){font-size:11px;color:var(--muted);margin:0}.closing>.text-link{margin-left:auto;white-space:nowrap}.site-footer{display:flex;max-width:1376px;margin:auto;padding:0 40px 33px;align-items:center;justify-content:space-between;gap:25px}.site-footer .brand{font-size:12px;gap:9px}.site-footer .brand-mark{width:29px;height:29px;border-radius:8px}.site-footer .brand-mark svg{width:18px;height:18px}.site-footer>p{font-size:9px;color:#8fa3be}.site-footer>p span{margin:0 7px}.site-footer>a:last-child{font-size:10px;color:#9eb8cf;display:flex;align-items:center;gap:9px}.site-footer>a:last-child svg{width:13px;height:13px}.skip{position:absolute;z-index:10;top:12px;left:12px;background:var(--cyan);color:#080f20;padding:10px 20px;border-radius:5px;transform:translateY(-170%)}.skip:focus{transform:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.toast:not(:empty){position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:20;max-width:90vw;padding:13px 22px;font-size:12px;color:var(--ink);background:#193448;border:1px solid #70e9ff88;border-radius:8px;box-shadow:0 8px 30px #0008}
.lesson-page{max-width:1000px;padding-top:27px;padding-bottom:65px}.back-link{display:inline-block;color:#a5bfd5;font-size:12px;margin-bottom:26px}.back-link:hover{color:var(--cyan)}.lesson-hero{--accent:var(--cyan);padding:38px 40px;border:1px solid #35536c;border-top:2px solid var(--accent);border-radius:10px;background:linear-gradient(130deg,#182a41cc,#101b30cc)}.lesson-hero.mint{--accent:var(--mint)}.lesson-hero.violet{--accent:var(--violet)}.lesson-hero .eyebrow{color:var(--accent);font-size:10px}.lesson-title-row{display:flex;align-items:center;justify-content:space-between;gap:30px}.lesson-title-row h1{font-size:48px;font-weight:700;line-height:1.15;letter-spacing:-2px;margin:0 0 12px}.lesson-subtitle{font-size:20px;font-weight:350;color:var(--accent);margin:0}.lesson-large-icon{display:grid;place-items:center;width:75px;height:75px;border:1px solid #3d6070;border-radius:16px;color:var(--accent);background:#19354755;flex-shrink:0}.lesson-large-icon svg{width:34px;height:34px}.lesson-intro{max-width:670px;font-size:14px;line-height:1.9;color:#b3c4db;margin:22px 0}.lesson-hero .tags{margin-bottom:26px}.lesson-hero .text-link{margin-left:24px}.lesson-section{padding-top:45px}.lesson-section .eyebrow{font-size:9px;margin-bottom:9px}.lesson-section h2,.stretch h2{font-size:26px;letter-spacing:-.7px;font-weight:600;margin:0 0 15px}.lesson-section>p:not(.eyebrow){font-size:13px;color:var(--muted);margin:0 0 20px}.steps{list-style:none;margin:24px 0;padding:0}.steps li{display:flex;gap:24px;padding:24px 0;border-bottom:1px solid #253d55}.step-number{font:13px var(--mono);color:var(--cyan);padding-top:4px}.steps h3{font-size:17px;font-weight:600;margin:0 0 7px}.steps p{margin:0;color:#acbed5;font-size:13px;line-height:1.9}.remember{display:flex;gap:16px;padding:23px 25px;background:#14293688;border:1px solid #33596a;border-radius:7px}.remember>span{color:var(--mint);padding-top:2px}.remember h3{font-size:13px;font-weight:650;margin:0 0 7px;color:var(--mint)}.remember p{font-size:12px;line-height:1.85;color:#b2c6d9;margin:0}.prompt-list{display:grid;gap:12px}.prompt-block{border:1px solid #35546a;background:#101f33;border-radius:7px;overflow:hidden}.prompt-block summary{cursor:pointer;font:11px/1.7 var(--mono);padding:17px 20px;color:var(--cyan)}.prompt-content{border-top:1px solid #2b4158;padding:18px 20px 21px}.prompt-toolbar{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px}.prompt-toolbar .mono{color:#8eacc2;font-size:8px;letter-spacing:1px}.copy-button{background:#1d4052;color:var(--cyan);padding:7px 12px;border:1px solid #4b7b8f;border-radius:4px;font-size:11px}.copy-button:hover{background:#2c5366}.prompt-content pre{font:12px/1.9 var(--mono);white-space:pre-wrap;margin:0;color:#d9e7f4;overflow-wrap:anywhere;user-select:text}.stretch{margin-top:40px;padding:27px 30px;border:1px solid #5c536f;border-left:3px solid var(--violet);border-radius:7px;background:#24223966}.stretch .eyebrow{font-size:9px;margin-bottom:8px;color:var(--violet)}.stretch p:not(.eyebrow){font-size:13px;color:#c0bdd8;line-height:1.9;margin:0}.lesson-downloads{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:22px 0 35px}.lesson-page .download-card{height:auto;min-height:95px}.not-found{min-height:65vh;padding-block:80px}.not-found h1{font-size:54px;line-height:1.1;letter-spacing:-2px;margin:15px 0}.not-found p:not(.eyebrow){color:var(--muted);font-size:14px;margin:25px 0}
@keyframes flight{from{stroke-dashoffset:0}to{stroke-dashoffset:-874}}@media(min-width:1450px){.hero{padding-top:90px;padding-bottom:85px}.hero h1{font-size:69px}.hero-description{font-size:18px}.mission-window{transform:perspective(1500px) rotateY(-3deg) rotateX(1deg) scale(1.02)}}
@media(max-width:1050px){.hero{gap:30px;grid-template-columns:1fr 1fr}.hero h1{font-size:50px;letter-spacing:-2.6px}.hero-actions{gap:17px;align-items:flex-start;flex-direction:column}.hero-note{margin-top:18px}.mission-body{padding:19px}.mission-body h2{font-size:29px}.window-signal{display:none}.mission-bottom>span{display:none}.mission-bottom{justify-content:flex-end}.orbit-map{height:245px}.course-strip{gap:30px}.section-heading h2{font-size:30px}.lesson-card{padding-inline:18px}.lesson-card h3{font-size:21px}.tags span{font-size:8px}.sim-copy{padding:27px}.sim-copy h3{font-size:22px}.sim-preview{padding:20px 14px}.download-card{padding:14px;gap:11px}.download-info strong{font-size:10px}.download-info>span{font-size:8px}.file-size{display:none}.closing{gap:18px}.closing h2{font-size:20px}.closing>.text-link{font-size:11px}.site-footer{flex-wrap:wrap}.site-footer>p{order:3;width:100%;margin:0}}
@media(max-width:760px){.wrap{padding-inline:23px}.site-header{padding:20px 23px;flex-wrap:wrap;gap:20px}.brand{font-size:15px}.site-header nav{order:3;width:100%;gap:27px;font-size:12px;border-top:1px solid #263a5366;padding-top:13px}.header-launch{margin-left:auto;font-size:10px;gap:10px;padding:8px 10px}.header-launch svg{width:14px;height:14px}.hero{grid-template-columns:1fr;padding-top:35px;padding-bottom:38px;gap:35px}.hero-copy{padding-bottom:0}.hero h1{font-size:57px;letter-spacing:-2.8px}.hero-description{font-size:16px}.hero-actions{flex-direction:row;align-items:center;gap:22px}.hero .eyebrow{font-size:9px}.hero-note{margin-top:21px}.mission-window{transform:none;max-width:550px;width:100%;margin:auto}.mission-body{padding:22px}.mission-body h2{font-size:34px}.window-signal{display:flex}.orbit-map{height:250px}.mission-bottom>span{display:block;max-width:none}.mission-bottom{justify-content:space-between}.course-strip{margin-inline:23px;padding:17px 0;gap:18px;flex-wrap:wrap}.course-strip>.mono{width:100%;font-size:8px}.course-strip>div{font-size:9px;gap:6px}.course-strip svg{width:14px;height:14px}.section{padding-top:48px}.section-heading{gap:20px;align-items:start}.section-heading h2{font-size:29px}.section-heading p:not(.eyebrow){font-size:12px;line-height:1.8}.section-counter{display:none}.lesson-grid{grid-template-columns:1fr;gap:15px}.lesson-card{padding:22px 23px 0}.card-top{margin-bottom:14px}.lesson-card h3{font-size:24px}.lesson-card>p{font-size:13px;margin-bottom:20px;max-width:520px}.lesson-card .tags{margin-bottom:20px}.tags span{font-size:9px}.card-foot{font-size:12px}.simulator-feature{grid-template-columns:1fr}.sim-preview{padding:24px 19px}.sim-preview img{transform:none}.preview-launch{bottom:25px}.sim-copy{padding:27px}.sim-copy h3{font-size:27px}.sim-copy>p{font-size:13px}.check-list{font-size:11px}.sim-copy .button{font-size:12px}.downloads-heading{flex-direction:column;gap:20px}.search-box{width:100%}.search-box input{width:100%;font-size:13px}.download-grid{grid-template-columns:1fr}.download-card{padding:16px;height:92px;gap:14px}.download-info strong{font-size:12px}.download-info>span{font-size:10px}.file-size{display:block;font-size:8px}.download-help{font-size:10px}.closing{margin-top:45px;margin-bottom:38px;padding-block:26px;flex-wrap:wrap;gap:17px}.closing-icon{width:38px;height:38px;align-self:flex-start}.closing>div:nth-child(2){flex:1;min-width:200px}.closing h2{font-size:22px;line-height:1.4}.closing .eyebrow{font-size:7px;letter-spacing:.9px}.closing>.text-link{margin-left:55px}.site-footer{padding:0 23px 27px;gap:20px}.site-footer>p{line-height:1.8;font-size:9px}.lesson-page{padding-top:18px}.lesson-hero{padding:27px 25px}.lesson-title-row h1{font-size:37px;letter-spacing:-1.5px}.lesson-large-icon{width:48px;height:48px;border-radius:11px}.lesson-large-icon svg{width:26px;height:26px}.lesson-subtitle{font-size:17px}.lesson-intro{font-size:13px}.lesson-title-row{gap:15px}.lesson-hero .text-link{display:flex;margin:20px 0 0}.lesson-section{padding-top:34px}.lesson-section h2,.stretch h2{font-size:25px;line-height:1.35}.steps li{gap:17px;padding:21px 0}.steps p{font-size:13px}.remember{padding:20px;gap:12px}.lesson-downloads{grid-template-columns:1fr}.stretch{padding:24px}.prompt-content{padding:17px}.prompt-content pre{font-size:11px}.prompt-block summary{font-size:10px}.prompt-toolbar .mono{font-size:7px}.copy-button{font-size:10px}.not-found h1{font-size:43px}}
@media(max-width:380px){.hero h1{font-size:49px}.hero-actions{gap:15px}.hero-actions .button{font-size:11px;padding-inline:12px;gap:12px}.hero-actions .text-link{font-size:11px}.mission-body{padding:18px}.mission-bottom>span{font-size:8px}.launch-button{font-size:9px;gap:8px;padding:9px 8px}.course-strip{gap:12px}.course-strip>div{font-size:8px}.download-info strong{font-size:11px}.download-info>span{font-size:9px}.file-size{display:none}.lesson-large-icon{display:none}.brand{font-size:13px}.site-header{gap:14px}.header-launch{font-size:9px}.section-heading h2{font-size:27px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.mission-window,.sim-preview img{transform:none}.pulse-path{stroke-dasharray:none;opacity:.2}}
@media print{body{background:white;color:black}.site-header,.stars,.site-footer,.hero-actions,.filters,.search-box,.copy-button,.toast,.header-launch,.hub-return{display:none!important}.wrap{max-width:100%;padding:0}.lesson-hero,.remember,.stretch,.prompt-block{background:white!important;border-color:#aaa;color:black}.lesson-hero *,.remember *,.stretch *,.lesson-section *{color:black!important}.lesson-hero{padding:15px}.lesson-section{padding-top:20px}.lesson-title-row h1{font-size:30px}.prompt-block{break-inside:avoid}.prompt-content{display:block}.lesson-downloads{display:none}.back-link{display:none}}