*{box-sizing:border-box;margin:0;padding:0}
:root{
  --breakout-navy:#071d33;
  --breakout-navy-2:#173b5b;
  --breakout-ink:#17283b;
  --breakout-muted:#61758a;
  --breakout-line:#c8d3de;
  --breakout-silver:#e8edf2;
  --breakout-soft:#f5f8fa;
  --breakout-paper:#fff;
  --breakout-teal:#25a77d;
  --breakout-teal-dark:#167356;
  --breakout-teal-soft:#e5f6ef;
  --breakout-yellow:#f4c542;
  --breakout-yellow-soft:#fff7d8;
  --breakout-red:#d6505b;
  --breakout-width:1760px;
  --breakout-shadow:0 28px 74px -54px rgba(7,29,51,.88);
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{min-width:0;min-height:100vh;overflow-x:hidden;background:linear-gradient(145deg,#fff 0%,#f4f7f9 56%,#e6edf3 100%);color:var(--breakout-ink);font-family:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
button,input{font:inherit}
a{color:inherit;text-decoration:none}
button{color:inherit}
img,svg{max-width:100%}
#breakoutApp{min-width:0}

/* Shared header */
.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(184,197,209,.85);background:rgba(255,255,255,.9);backdrop-filter:blur(18px)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:min(var(--breakout-width),calc(100% - 36px));min-height:68px;margin:auto}
.brand{display:flex;align-items:center;min-width:0;gap:12px;color:var(--breakout-navy);font-weight:900}
.brand img{flex:0 0 auto;width:42px;height:42px;border:1px solid #c3ced8;border-radius:12px;background:#fff}
.brand span{min-width:0;font-size:15px;line-height:1.25}
.brand small{display:block;overflow:hidden;color:#72869b;font-family:"Lexend",sans-serif;font-size:9px;letter-spacing:1.8px;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap}
.top-actions{display:flex;flex:0 0 auto;gap:8px}
.pill{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:8px 15px;border:1px solid #b9c6d1;border-radius:999px;background:#fff;color:var(--breakout-navy);font-size:12px;font-weight:850}
.pill.primary{border-color:var(--breakout-navy);background:var(--breakout-navy);color:#fff}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(420px,.85fr);align-items:center;gap:54px;width:min(var(--breakout-width),calc(100% - 36px));margin:auto;padding:62px 0 38px}
.eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:17px;color:#507497;font-family:"Lexend",sans-serif;font-size:11px;font-weight:800;letter-spacing:1.8px;text-transform:uppercase}
.eyebrow>span{display:grid;place-items:center;width:39px;height:39px;border-radius:12px;background:var(--breakout-navy);color:#fff;letter-spacing:0}
.hero h1{max-width:900px;color:var(--breakout-navy);font-size:clamp(48px,5.9vw,88px);font-weight:950;letter-spacing:-4px;line-height:1.01;word-break:keep-all}
.hero p{max-width:850px;margin-top:22px;color:#53697d;font-size:clamp(16px,1.25vw,20px);line-height:1.85;word-break:keep-all}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tags span{padding:8px 12px;border:1px solid #bfccd7;border-radius:999px;background:rgba(255,255,255,.82);color:var(--breakout-navy-2);font-size:11px;font-weight:850}
.hero-art{min-width:0;padding:22px;border:1px solid #becbd6;border-radius:30px;background:linear-gradient(145deg,#f9fbfc,#e4ebf0);box-shadow:var(--breakout-shadow)}
.hero-art img{display:block;width:100%;height:auto;min-height:320px;object-fit:contain}

/* Before-you-build orientation */
.orientation{width:min(var(--breakout-width),calc(100% - 36px));margin:0 auto 34px;padding:32px;border:1px solid #afc0cc;border-radius:26px;background:rgba(255,255,255,.94);box-shadow:var(--breakout-shadow)}
.orientation>header{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding-bottom:22px;border-bottom:1px solid #d3dce4}
.orientation small,.step-kicker{color:#71879a;font-family:"Lexend",sans-serif;font-size:9px;font-weight:850;letter-spacing:1.8px;text-transform:uppercase}
.orientation h2{margin-top:5px;color:var(--breakout-navy);font-size:clamp(29px,3vw,45px);font-weight:950;letter-spacing:-1.8px;line-height:1.12;word-break:keep-all}
.orientation>header>a{flex:0 0 auto;padding:11px 15px;border-radius:999px;background:var(--breakout-navy);color:#fff;font-size:12px;font-weight:850}
.orientation>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.orientation article{min-width:0;padding:18px;border:1px solid #ced8e1;border-radius:16px;background:#f7f9fb}
.orientation article b,.orientation article span{display:block}
.orientation article b{color:var(--breakout-navy);font-size:13px}
.orientation article span{margin-top:6px;color:#5b7184;font-size:13px;line-height:1.72}

/* Course layout and collapsed table of contents */
.course-layout{display:grid;grid-template-columns:292px minmax(0,1fr);align-items:start;gap:28px;width:min(var(--breakout-width),calc(100% - 36px));margin:0 auto 88px;transition:grid-template-columns .2s ease}
.course-layout.nav-collapsed{grid-template-columns:72px minmax(0,1fr)}
.lesson-nav{position:sticky;top:86px;z-index:30;min-width:0;max-height:calc(100vh - 106px);overflow:auto;padding:15px;border:1px solid var(--breakout-line);border-radius:20px;background:rgba(255,255,255,.94);box-shadow:var(--breakout-shadow);scrollbar-width:thin}
.nav-toggle{display:flex;align-items:center;width:100%;gap:10px;padding:7px;border:0;border-radius:12px;background:transparent;text-align:left;cursor:pointer}
.nav-toggle>i{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border-radius:11px;background:var(--breakout-navy);color:#fff;font-style:normal;font-weight:900}
.nav-toggle span,.nav-toggle b,.nav-toggle small{display:block;min-width:0}
.nav-toggle b{color:var(--breakout-navy);font-size:13px}
.nav-toggle small{color:#7a8c9c;font-size:10px}
.progress{margin:13px 7px 15px;padding:13px;border-radius:13px;background:#edf3f7}
.progress>span,.progress>small{display:block}
.progress>span{color:#4c6479;font-size:11px;font-weight:750}
.progress>span b{color:var(--breakout-teal-dark);font-size:16px}
.progress>i{display:block;height:7px;margin-top:9px;overflow:hidden;border-radius:999px;background:#d3dfe6}
.progress>i>em{display:block;width:0;height:100%;border-radius:inherit;background:var(--breakout-teal);transition:width .25s ease}
.progress>small{margin-top:7px;color:#8293a1;font-size:9px;line-height:1.45}
.nav-links{display:grid;gap:3px}
.nav-links a{display:grid;grid-template-columns:30px minmax(0,1fr);align-items:center;gap:9px;padding:10px 8px;border-radius:10px;color:#536b80;font-size:11px;font-weight:750;line-height:1.45}
.nav-links a:hover{background:#edf3f7;color:var(--breakout-navy)}
.nav-links a>b{color:#90a0af;font-family:"Lexend",sans-serif;font-size:9px}
.nav-links a>span{min-width:0;word-break:keep-all}
.nav-links a.is-done{background:var(--breakout-teal-soft);color:var(--breakout-teal-dark)}
.nav-links a.is-done>b{color:var(--breakout-teal-dark)}
.course-layout.nav-collapsed .lesson-nav{padding:10px}
.course-layout.nav-collapsed .nav-toggle{justify-content:center;padding:7px 0}
.course-layout.nav-collapsed .nav-toggle span,
.course-layout.nav-collapsed .progress,
.course-layout.nav-collapsed .nav-links{display:none}
.lesson-main{display:grid;min-width:0;gap:22px}

/* Detailed lesson cards */
.lesson-step{min-width:0;scroll-margin-top:88px;overflow:hidden;border:1px solid var(--breakout-line);border-radius:26px;background:rgba(255,255,255,.97);box-shadow:var(--breakout-shadow)}
.step-grid{display:grid;grid-template-columns:minmax(440px,.92fr) minmax(0,1.08fr);min-width:0;min-height:620px}
.lesson-step.has-code .step-grid{grid-template-columns:minmax(430px,.78fr) minmax(0,1.22fr)}
.step-copy{display:flex;min-width:0;flex-direction:column;justify-content:center;padding:42px 38px}
.step-kicker{margin-bottom:13px}
.step-copy>h2{max-width:100%;color:var(--breakout-navy);font-size:clamp(34px,3.15vw,52px);font-weight:950;letter-spacing:-2.2px;line-height:1.1;overflow-wrap:anywhere;word-break:break-word}
.lesson-step.has-code .step-copy>h2{font-size:clamp(32px,2.75vw,46px);overflow-wrap:normal;word-break:keep-all}
.step-purpose{margin-top:22px;padding:17px 18px;border-left:4px solid var(--breakout-teal);border-radius:0 14px 14px 0;background:#f0f8f5}
.step-purpose>b{color:var(--breakout-teal-dark);font-size:12px}
.step-purpose>p{margin-top:6px;color:#405c50;font-size:14px;line-height:1.82;word-break:keep-all}
.term-guide{margin-top:16px;border:1px solid #bfd4ca;border-radius:14px;background:#fbfefd;overflow:hidden}
.term-guide>summary{padding:13px 15px;color:#285d49;font-size:12px;font-weight:850;cursor:pointer}
.term-guide>dl{display:grid;gap:1px;border-top:1px solid #d7e7df;background:#d7e7df}
.term-guide dl>div{display:grid;grid-template-columns:minmax(110px,.32fr) minmax(0,1fr);gap:12px;padding:12px 15px;background:#fff}
.term-guide dt{min-width:0;max-width:100%;color:var(--breakout-navy);font-size:12px;font-weight:900;overflow-wrap:anywhere;word-break:break-word}
.term-guide dd{color:#5b7167;font-size:12px;line-height:1.6}
.path-label{display:flex;align-items:baseline;gap:10px;margin-top:20px}
.path-label b{color:var(--breakout-navy);font-size:13px}
.path-label span{color:#7b8e9c;font-size:10px}
.click-path{display:flex;flex-wrap:wrap;gap:7px;margin-top:9px}
.click-path span{min-width:0;padding:7px 10px;border:1px solid #c5d1db;border-radius:9px;background:#f6f8fa;color:var(--breakout-navy-2);font-family:"JetBrains Mono",monospace;font-size:10px;font-weight:700;overflow-wrap:anywhere}
.click-path i{align-self:center;color:#8b9dac;font-style:normal;font-weight:900}
.task-title{display:flex;align-items:baseline;gap:9px;margin-top:23px}
.task-title b{color:var(--breakout-navy);font-size:15px}
.task-title span{color:#7b8c9b;font-size:10px}
.tasks{display:grid;gap:11px;margin-top:12px;counter-reset:breakout-task}
.tasks>li{position:relative;min-width:0;padding:13px 13px 13px 48px;border:1px solid #d4dfe7;border-radius:13px;background:#fafcfd;list-style:none}
.tasks>li::before{content:attr(data-num);position:absolute;top:13px;left:13px;display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:#e4edf3;color:#285b80;font-family:"Lexend",sans-serif;font-size:9px;font-weight:900}
.task-action{display:block;color:#2e485e;font-size:14px;font-weight:850;line-height:1.65;word-break:keep-all}
.task-why{display:block;margin-top:8px;padding:9px 11px;border-left:3px solid #63b18b;border-radius:0 9px 9px 0;background:#edf8f3;color:#547064;font-size:11px;font-weight:600;line-height:1.65}
.task-why b{margin-right:6px;color:#176d4d;font-size:10px;font-weight:950}
.task-terms{display:flex;flex-wrap:wrap;gap:5px;margin-top:8px}
.task-terms span{padding:4px 7px;border-radius:999px;background:#e6edf3;color:#405d74;font-family:"JetBrains Mono",monospace;font-size:9px;font-weight:750}
.success-check,.trouble{display:grid;grid-template-columns:112px minmax(0,1fr);gap:12px;margin-top:15px;padding:13px 15px;border-radius:12px;font-size:12px;line-height:1.65}
.success-check{border:1px solid #a8d5c1;background:#edf8f3;color:#486c5c}
.success-check strong{color:var(--breakout-teal-dark)}
.trouble{border:1px solid #e3cf88;background:var(--breakout-yellow-soft);color:#6f633b}
.trouble strong{color:#85690c}
.step-complete{align-self:flex-start;margin-top:18px;padding:11px 15px;border:1px solid #aebdca;border-radius:10px;background:#fff;color:var(--breakout-navy);font-size:12px;font-weight:850;cursor:pointer}
.step-complete>span{margin-right:4px}
.step-complete.is-done{border-color:var(--breakout-teal-dark);background:var(--breakout-teal-dark);color:#fff}
.step-media{display:flex;align-items:center;justify-content:center;min-width:0;overflow:hidden;padding:30px;background:linear-gradient(145deg,#f2f5f8,#dfe7ed)}
.lesson-step.has-code .step-media{align-items:flex-start}
.lesson-step.has-code .step-media .code-card{position:sticky;top:98px}

/* Save-before-Unity beginner safeguard */
.save-guide{margin-top:17px;padding:15px;border:1px solid #e2c35b;border-radius:15px;background:#fffaf0}
.save-warning{display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:10px;padding-bottom:12px;border-bottom:1px solid #ead9a8}
.save-warning>span{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:var(--breakout-yellow);color:#4a3900;font-weight:950}
.save-warning b,.save-warning small{display:block}
.save-warning b{color:#58491d;font-size:12px}
.save-warning small{margin-top:3px;color:#786c4a;font-size:10px;line-height:1.55}
.save-guide>ol{display:grid;gap:7px;margin-top:12px}
.save-guide li{display:grid;grid-template-columns:25px minmax(0,1fr);gap:8px;list-style:none;color:#5c5338;font-size:11px;line-height:1.55}
.save-guide li>b{display:grid;place-items:center;width:22px;height:22px;border-radius:7px;background:var(--breakout-navy);color:#fff;font-size:9px}
.save-guide li span,.save-guide li small{display:block}
.save-guide li small{margin-top:2px;color:#867a59;font-size:9px}
.save-guide kbd{padding:1px 4px;border:1px solid #c7b474;border-radius:4px;background:#fff;font-family:"JetBrains Mono",monospace;font-size:9px}

/* Code panel: every line wraps inside its column */
.code-card{width:100%;min-width:0;max-height:760px;overflow:hidden;border:1px solid #29445d;border-radius:19px;background:#071a2c;box-shadow:0 22px 50px -40px #071d33}
.code-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid #294863;background:#0c263d;color:#c5d4df;font-family:"Lexend",sans-serif;font-size:10px;font-weight:800;letter-spacing:1px}
.copy-code{flex:0 0 auto;padding:7px 10px;border:1px solid #55728d;border-radius:8px;background:#173b5b;color:#fff;font-size:9px;font-weight:850;cursor:pointer}
.code-before{display:grid;gap:3px;padding:12px 16px;border-bottom:1px solid #5a542f;background:#fff4c8;color:#5b4e1d}
.code-before b{font-size:11px}
.code-before span{font-size:9px;line-height:1.5}
.code-card pre{max-width:100%;max-height:650px;overflow:auto;margin:0;padding:18px 0;background:#071a2c;color:#e8f1f8;font:12px/1.72 "JetBrains Mono",monospace;white-space:normal;tab-size:2}
.code-card code{display:block;min-width:0}
.code-line{display:grid;grid-template-columns:42px minmax(0,1fr);min-width:0}
.code-line>i{padding:0 10px 0 5px;color:#587088;font-style:normal;text-align:right;user-select:none}
.code-line>span{min-width:0;padding-right:15px;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}
.code-comment{color:#69d49e;font-style:italic}

/* Unity-style teaching diagrams */
.final-visual{width:100%;overflow:hidden;border:1px solid #b9c7d2;border-radius:20px;background:#fff;box-shadow:0 22px 50px -42px #071d33}
.final-visual img{display:block;width:100%;height:auto;max-height:580px;object-fit:contain;background:#071a2c}
.final-visual>div{display:grid;gap:3px;padding:15px}
.final-visual b{color:var(--breakout-navy);font-size:13px}
.final-visual span{color:#637688;font-size:11px;line-height:1.55}
.unity-window,.editor-visual,.folder-visual,.brick-visual,.ui-visual,.test-visual,.build-visual{width:100%;min-width:0;overflow:hidden;border:1px solid #53616d;border-radius:18px;background:#20262b;color:#e7edf1;box-shadow:0 24px 54px -43px #071d33}
.hub-window{isolation:isolate}
.unity-window>header,.editor-visual>header{display:flex;align-items:center;gap:10px;min-height:42px;padding:10px 14px;border-bottom:1px solid #454f57;background:#171b1f;color:#dce3e7;font-size:11px}
.traffic{display:flex;gap:5px}
.traffic>i{width:9px;height:9px;border-radius:50%;background:#f16058}
.traffic>i:nth-child(2){background:#f5bd3b}.traffic>i:nth-child(3){background:#4fc35b}
.unity-window i:not(.traffic>i),.settings-window main h3>i,.settings-window main label i,.console-ok>i{display:inline-grid;place-items:center;border-radius:50%;background:var(--breakout-yellow);color:#302500;font-style:normal;font-weight:950}
.unity-window>footer,.folder-visual>footer,.test-visual>footer,.build-visual>footer{padding:11px 14px;background:var(--breakout-navy);color:#dce8f0;font-size:10px}
.hub-layout{display:grid;grid-template-columns:minmax(88px,.2fr) minmax(0,.48fr) minmax(150px,.32fr);min-height:390px}
.hub-layout>aside{display:flex;min-width:0;flex-direction:column;gap:7px;padding:17px 11px;border-right:1px solid #424b52;background:#1b2024}
.hub-layout>aside span{padding:8px;border-radius:6px;color:#aeb8bf;font-size:10px}
.hub-layout>aside .active{background:#343c42;color:#fff}
.hub-layout>aside i{width:19px;height:19px;margin-right:5px;font-size:8px}
.hub-layout>main{min-width:0;padding:18px;background:#23282d}
.version{display:flex;align-items:center;gap:10px;padding:12px;border-radius:8px;background:#30373c}
.version>i{flex:0 0 27px;width:27px;height:27px;font-size:9px}
.version span,.version small,.version b{display:block;min-width:0}
.version small{color:#9ca8b0;font-size:8px}.version b{font-size:11px}
.templates{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:18px}
.templates article{position:relative;min-width:0;min-height:125px;padding:13px;border:1px solid #4b555c;border-radius:9px;background:#2c3338}
.templates article.selected{border:3px solid var(--breakout-teal);background:#163a30}
.templates article>i{position:absolute;top:8px;right:8px;width:24px;height:24px;font-size:8px}
.templates b,.templates small{display:block}.templates b{margin-top:50px;font-size:11px}.templates small{margin-top:3px;color:#a9b4bc;font-size:8px}
.hub-layout>section{display:flex;min-width:0;flex-direction:column;gap:12px;padding:18px 12px;border-left:1px solid #414a51;background:#1b2024}
.hub-layout>section label{min-width:0;padding:10px;border:1px solid #4b555d;border-radius:8px;background:#292f34}
.hub-layout>section label span,.hub-layout>section label b{display:block;min-width:0;overflow-wrap:anywhere}
.hub-layout>section label span{color:#9faab2;font-size:8px}.hub-layout>section label i{width:19px;height:19px;margin-right:5px;font-size:8px}.hub-layout>section label b{margin-top:6px;font-size:10px}
.hub-layout>section button{margin-top:auto;padding:11px;border:0;border-radius:8px;background:#1889d8;color:#fff;font-size:10px;font-weight:850}.hub-layout>section button i{width:21px;height:21px;margin-right:5px;font-size:8px}
.settings-window>div{display:grid;grid-template-columns:minmax(110px,.23fr) minmax(0,.77fr);min-height:400px}
.settings-window>div>aside{display:flex;flex-direction:column;gap:6px;padding:16px 10px;border-right:1px solid #444d54;background:#1a1f23}
.settings-window>div>aside span{padding:9px;border-radius:6px;color:#aeb8c0;font-size:10px}
.settings-window>div>aside .active{background:#343d43;color:#fff}.settings-window>div>aside i{width:20px;height:20px;margin-right:5px;font-size:8px}
.settings-window main{min-width:0;padding:18px;background:#23282d}
.settings-window main h3{padding-bottom:12px;border-bottom:1px solid #4a545b;font-size:13px}.settings-window main h3>i{width:24px;height:24px;margin-right:8px;font-size:9px}
.settings-window main>section{margin-top:16px;padding:14px;border:1px solid #4e5961;border-radius:9px;background:#1c2125}
.settings-window main>section>small{color:#96a3ab;font-size:8px}
.settings-window main label{display:flex;align-items:center;justify-content:space-between;gap:9px;margin-top:14px;padding:11px;border-radius:7px;background:#30383e;font-size:10px}
.settings-window main label i{width:21px;height:21px;margin-right:6px;font-size:8px}.settings-window main label b{padding:6px 10px;border-radius:5px;background:#15191c}
.settings-window main p{display:flex;align-items:center;gap:9px;margin-top:12px;padding:10px;border-radius:7px;background:#564b1f}.settings-window main p>i{flex:0 0 22px;width:22px;height:22px;font-size:8px}.settings-window main p span,.settings-window main p strong,.settings-window main p small{display:block}.settings-window main p strong{font-size:10px}.settings-window main p small{color:#d9cfaa;font-size:8px}
.console-ok{display:flex;align-items:center;gap:9px;margin-top:13px;padding:11px;border:1px solid #387d61;border-radius:8px;background:#153f31}.console-ok>i{flex:0 0 22px;width:22px;height:22px;font-size:8px}.console-ok span,.console-ok b,.console-ok small{display:block}.console-ok b{font-size:10px}.console-ok small{color:#a7d9c3;font-size:8px}
.folder-visual>header,.brick-visual>header,.test-visual>header,.build-visual>header{padding:22px;background:#182027}
.folder-visual h3,.brick-visual h3,.test-visual h3,.build-visual h3{margin-top:5px;font-size:22px;line-height:1.25}
.folder-visual small,.brick-visual small,.test-visual small,.build-visual small{color:#78d8af;font-family:"Lexend",sans-serif;font-size:8px;letter-spacing:1.4px}
.folder-visual>header p{margin-top:7px;color:#aebbc3;font-size:10px}
.folder-visual>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;padding:20px;background:#242a2f}
.folder-visual article{display:grid;grid-template-columns:32px minmax(0,1fr);align-items:center;gap:4px 9px;min-width:0;padding:12px;border-radius:9px;background:#343c42}
.folder-visual article>i{grid-row:1/3;color:#55b6e8;font-size:25px;font-style:normal}.folder-visual article>b{font-size:11px}.folder-visual article>span{color:#aeb9c0;font-size:9px;overflow-wrap:anywhere}
.folder-visual>footer{display:flex;justify-content:space-between;gap:10px}
.editor-body{display:grid;grid-template-columns:minmax(90px,.2fr) minmax(0,.48fr) minmax(130px,.32fr);min-height:440px}
.editor-body>aside{display:flex;min-width:0;flex-direction:column;gap:5px;padding:12px 8px;border-right:1px solid #424c53;background:#1a1f23}
.editor-body>aside>*{padding:7px;border-radius:5px;font-size:9px;overflow-wrap:anywhere}.editor-body>aside span{color:#aab5bd}.editor-body>aside .selected{background:#394249;color:#fff}
.editor-body>main{display:grid;min-width:0;place-items:center;padding:14px;background:#242a2f}
.editor-body>section{min-width:0;padding:12px 9px;border-left:1px solid #414b52;background:#1a1f23}.editor-body>section>small{color:#7cd8b1;font-size:8px}.editor-body>section article{display:grid;gap:3px;margin-top:9px;padding:9px;border-radius:7px;background:#30383e}.editor-body>section article.accent{border:1px solid #419977;background:#173f33}.editor-body>section b{font-size:9px}.editor-body>section span{color:#aeb9c0;font-size:8px;overflow-wrap:anywhere}
.breakout-board{position:relative;width:100%;max-width:690px;aspect-ratio:16/10;overflow:hidden;border:1px solid #3d5e78;border-radius:15px;background:radial-gradient(circle at 50% 120%,#123f59 0,#071a2c 55%,#04121f 100%);box-shadow:inset 0 0 50px rgba(35,167,125,.08)}
.breakout-board>header{position:absolute;z-index:4;top:0;right:0;left:0;display:flex;justify-content:space-between;padding:4% 5%;color:#d8f9ee;font:850 clamp(6px,.8vw,11px)/1 "JetBrains Mono",monospace}
.brick-field{position:absolute;top:19%;right:10%;left:10%;display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.brick-field>.b{height:clamp(5px,1vw,12px);border-radius:2px;background:#33a7b8;box-shadow:0 0 10px rgba(51,167,184,.4)}
.brick-field>.b-1{background:#f4c542}.brick-field>.b-2{background:#25a77d}.brick-field>.b-3{background:#4fa6d1}.brick-field>.b-4{background:#d86473}
.breakout-board>.ball{position:absolute;z-index:3;left:54%;bottom:35%;width:3%;aspect-ratio:1;border-radius:50%;background:#fff;box-shadow:0 0 14px #9fffe0}
.breakout-board>.trail{position:absolute;left:51%;bottom:23%;width:1px;height:12%;background:linear-gradient(transparent,#79d9b2);transform:rotate(-22deg)}
.breakout-board>.paddle{position:absolute;left:40%;bottom:12%;width:22%;height:3%;border-radius:999px;background:linear-gradient(90deg,#58d09f,#e6fff5);box-shadow:0 0 16px rgba(88,208,159,.55)}
.breakout-board>footer{position:absolute;right:0;bottom:3.5%;left:0;color:#6aa58f;font:700 clamp(5px,.65vw,9px)/1 "JetBrains Mono",monospace;text-align:center}
.breakout-board.compact{max-width:520px}
.brick-visual>header{display:flex;align-items:center;justify-content:space-between;gap:12px}.brick-visual>header>span{flex:0 0 auto;padding:7px 10px;border-radius:999px;background:var(--breakout-yellow);color:#403200;font-size:9px;font-weight:850}
.brick-flow{display:grid;grid-template-columns:minmax(110px,.35fr) 25px minmax(180px,.65fr);align-items:center;gap:10px;padding:28px;background:#242a2f}
.brick-flow>article{display:grid;min-width:0;gap:7px;padding:18px;border-radius:12px;background:#333b41;text-align:center}.brick-flow>i{color:#77d9b1;font-size:22px;font-style:normal;text-align:center}.brick-flow article>b{font-size:11px}.brick-flow article>span{color:#aeb9c0;font-size:9px}
.single-brick{display:block;width:90%;height:30px;margin:8px auto;border-radius:4px;background:var(--breakout-teal);box-shadow:0 0 18px rgba(37,167,125,.4)}
.rows>div{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}.rows>div i{height:14px;border-radius:2px;background:#4fa6d1}.rows>div .row-1{background:#f4c542}.rows>div .row-2{background:#25a77d}.rows>div .row-4{background:#d86473}
.ui-visual{position:relative;display:grid;place-items:center;min-height:520px;padding:25px;background:#20262b}.ui-visual>.breakout-board{width:78%}.ui-label{position:absolute;padding:7px 9px;border:2px solid var(--breakout-yellow);border-radius:8px;background:rgba(7,29,51,.94);color:#fff;font-size:9px;font-weight:850}.ui-label small{color:#b7c9d5;font-size:7px}.ui-label.score{top:11%;left:3%}.ui-label.life{top:11%;right:3%}.ui-label.result{right:3%;bottom:10%}
.result-panel{position:absolute;top:50%;left:50%;display:grid;gap:7px;place-items:center;width:40%;padding:22px;border:1px solid #6b8295;border-radius:12px;background:rgba(5,20,34,.94);transform:translate(-50%,-50%)}.result-panel b{font-size:25px}.result-panel span{color:#83dcb5;font:800 10px/1 "JetBrains Mono",monospace}.result-panel button{padding:8px 13px;border:0;border-radius:6px;background:var(--breakout-yellow);color:#352900;font-size:9px;font-weight:900}
.test-visual>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:22px;background:#242a2f}.test-visual article{display:grid;gap:8px;padding:16px;border-radius:10px;background:#323a40}.test-visual article>b{color:#76d7af;font-size:12px}.test-visual article>span{padding:6px;border-radius:5px;background:#20262b;color:#b8c3ca;font-size:9px}.test-visual>footer{display:flex;justify-content:space-between;gap:10px}
.build-visual>ol{display:grid;gap:9px;padding:22px;background:#242a2f}.build-visual li{display:grid;grid-template-columns:30px minmax(0,1fr) minmax(110px,.42fr);align-items:center;gap:10px;padding:11px;border-radius:8px;background:#333b41;list-style:none}.build-visual li>b{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:var(--breakout-yellow);color:#302500}.build-visual li>span{font-size:11px;font-weight:850}.build-visual li>em{color:#aebbc3;font-size:9px;font-style:normal;text-align:right}

/* Completion */
.finish{display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,.35fr);gap:30px;padding:45px;border-radius:27px;background:linear-gradient(140deg,#071d33,#173b5b);color:#fff;box-shadow:var(--breakout-shadow)}
.finish small{color:#85dcb8;font-family:"Lexend",sans-serif;font-size:9px;letter-spacing:1.5px}.finish h2{margin-top:8px;font-size:clamp(34px,4vw,58px);letter-spacing:-2px;line-height:1.08}.finish p{max-width:850px;margin-top:16px;color:#bed0dd;font-size:14px;line-height:1.8}.finish aside{align-self:center;padding:20px;border:1px solid #50708a;border-radius:16px;background:rgba(255,255,255,.06)}.finish aside b,.finish aside span{display:block}.finish aside b{color:var(--breakout-yellow);font-size:12px}.finish aside span{margin-top:7px;color:#d5e2ea;font-size:12px;line-height:1.65}
.course-note{padding:28px;border:1px solid #bdcad5;border-radius:22px;background:rgba(255,255,255,.9)}.course-note strong{color:var(--breakout-navy);font-size:15px}.course-note p{margin-top:8px;color:#607487;font-size:12px;line-height:1.7}.course-note>div{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.course-note a{padding:8px 11px;border:1px solid #bdcbd6;border-radius:999px;background:#fff;color:var(--breakout-navy-2);font-size:10px;font-weight:800}

/* The global book menu occupies the right edge only on the detailed page. */
@media(min-width:1101px){
  html:has(#gnavSidebar.open) body[data-breakout-view="detail"] .topbar-inner,
  html:has(#gnavSidebar.open) body[data-breakout-view="detail"] .hero,
  html:has(#gnavSidebar.open) body[data-breakout-view="detail"] .orientation,
  html:has(#gnavSidebar.open) body[data-breakout-view="detail"] .course-layout{width:min(var(--breakout-width),calc(100% - 170px));margin-right:152px;margin-left:18px}
}

@media(max-width:1250px){
  .hero{grid-template-columns:minmax(0,1fr) minmax(340px,.75fr)}
  .course-layout{grid-template-columns:260px minmax(0,1fr);gap:20px}
  .course-layout.nav-collapsed{grid-template-columns:68px minmax(0,1fr)}
  .step-grid,.lesson-step.has-code .step-grid{grid-template-columns:minmax(360px,.82fr) minmax(0,1.18fr)}
  .step-copy{padding:34px 29px}
}

@media(max-width:1100px){
  .hero{grid-template-columns:1fr;padding-top:42px}.hero-art{max-width:850px}
  .orientation>div{grid-template-columns:1fr}
  .course-layout,.course-layout.nav-collapsed{grid-template-columns:minmax(0,1fr)}
  .lesson-nav{top:76px;max-height:min(64vh,620px)}
  .course-layout.nav-collapsed .lesson-nav{width:64px;justify-self:start}
  .step-grid,.lesson-step.has-code .step-grid{grid-template-columns:minmax(0,1fr)}
  .step-copy{padding:40px}
  .step-media{min-height:520px}
  .lesson-step.has-code .step-media .code-card{position:static}
  .code-card{max-height:none}.code-card pre{max-height:680px}
}

@media(max-width:700px){
  .topbar-inner{width:calc(100% - 20px);min-height:60px}.brand img{width:36px;height:36px}.brand span{font-size:13px}.brand small{max-width:150px;font-size:7px}.pill{min-height:34px;padding:6px 9px;font-size:10px}.top-actions{gap:5px}
  .hero,.orientation,.course-layout{width:calc(100% - 20px)}
  .hero{gap:24px;padding:30px 0 24px}.hero h1{font-size:clamp(39px,13vw,60px);letter-spacing:-2.5px}.hero p{font-size:14px;line-height:1.75}.hero-art{padding:10px;border-radius:20px}.hero-art img{min-height:190px}
  .orientation{padding:20px;border-radius:20px}.orientation>header{display:grid}.orientation>header>a{justify-self:start}.orientation h2{font-size:29px}
  .course-layout{gap:14px}.lesson-nav{top:67px;border-radius:16px}.course-layout.nav-collapsed .lesson-nav{width:58px;padding:7px}.nav-toggle>i{width:32px;height:32px}
  .lesson-main{gap:15px}.lesson-step{border-radius:19px;scroll-margin-top:72px}.step-copy{padding:27px 20px}.step-copy>h2{font-size:32px;letter-spacing:-1.4px}.step-purpose>p{font-size:13px}.term-guide dl>div{grid-template-columns:1fr;gap:4px}.path-label,.task-title{display:grid;gap:2px}.task-action{font-size:13px}.tasks>li{padding:12px 11px 12px 43px}.success-check,.trouble{grid-template-columns:1fr;gap:3px}.step-media{min-height:340px;padding:12px}
  .save-guide{padding:12px}.save-warning{grid-template-columns:29px minmax(0,1fr)}
  .code-card{border-radius:13px}.code-head{padding:10px;font-size:8px}.copy-code{padding:5px 7px}.code-before{padding:10px}.code-card pre{max-height:620px;font-size:10px;line-height:1.68}.code-line{grid-template-columns:31px minmax(0,1fr)}.code-line>i{padding-right:7px}.code-line>span{padding-right:8px}
  .hub-layout{grid-template-columns:20% 46% 34%;min-height:320px}.hub-layout>aside{padding:9px 4px}.hub-layout>aside strong{font-size:8px}.hub-layout>aside span{padding:5px 2px;font-size:7px}.hub-layout>aside i{display:none!important}.hub-layout>main{padding:9px 5px}.version{padding:7px;gap:4px}.version>i{width:20px;height:20px;font-size:6px}.version b{font-size:8px}.templates{gap:4px;margin-top:9px}.templates article{min-height:95px;padding:6px}.templates b{margin-top:42px;font-size:7px}.templates small{font-size:6px}.hub-layout>section{gap:6px;padding:9px 5px}.hub-layout>section label{padding:6px}.hub-layout>section label span{font-size:6px}.hub-layout>section label i{display:none!important}.hub-layout>section label b{font-size:7px}.hub-layout>section button{padding:7px;font-size:7px}.hub-layout>section button i{display:none!important}
  .settings-window>div{grid-template-columns:24% 76%;min-height:320px}.settings-window>div>aside{padding:8px 4px}.settings-window>div>aside span{padding:6px 3px;font-size:7px}.settings-window main{padding:9px}.settings-window main h3{font-size:9px}.settings-window main>section{padding:8px}.settings-window main label{padding:7px;font-size:7px}.settings-window main p,.console-ok{padding:7px}.settings-window main p strong,.console-ok b{font-size:7px}
  .folder-visual>header,.brick-visual>header,.test-visual>header,.build-visual>header{padding:15px}.folder-visual h3,.brick-visual h3,.test-visual h3,.build-visual h3{font-size:16px}.folder-visual>div{grid-template-columns:1fr;padding:12px}.folder-visual>footer{display:grid}.editor-body{grid-template-columns:20% 47% 33%;min-height:340px}.editor-body>aside{padding:7px 3px}.editor-body>aside>*{padding:4px;font-size:6px}.editor-body>main{padding:6px}.editor-body>section{padding:7px 3px}.editor-body>section article{padding:5px}.editor-body>section b{font-size:6px}.editor-body>section span{font-size:5.5px}
  .brick-flow{grid-template-columns:1fr;padding:13px}.brick-flow>i{transform:rotate(90deg)}.ui-visual{min-height:370px;padding:10px}.ui-visual>.breakout-board{width:92%}.ui-label{font-size:6px}.result-panel{width:52%;padding:12px}.result-panel b{font-size:17px}.test-visual>div{grid-template-columns:1fr;padding:13px}.build-visual>ol{padding:13px}.build-visual li{grid-template-columns:28px minmax(0,1fr)}.build-visual li>em{grid-column:2;text-align:left}
  .finish{grid-template-columns:1fr;padding:28px 22px}.finish h2{font-size:34px}.course-note{padding:20px}
}

@media(max-width:430px){
  .brand small{display:none}.brand span{font-size:12px}.pill:first-child{display:none}
  .hero h1{font-size:38px}.tags span{font-size:9px}.orientation h2{font-size:25px}
  .step-copy{padding:24px 16px}.step-copy>h2{font-size:29px}.step-media{padding:8px}
  .unity-window>header,.editor-visual>header{font-size:8px}.unity-window>footer{font-size:7px}
  .code-head>span{max-width:65%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.progress>i>em{transition:none}}