@font-face{font-family:DM Sans;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/dm-sans-400.woff2) format("woff2")}@font-face{font-family:DM Sans;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/dm-sans-500.woff2) format("woff2")}@font-face{font-family:DM Sans;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/dm-sans-600.woff2) format("woff2")}@font-face{font-family:DM Sans;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/dm-sans-700.woff2) format("woff2")}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/jetbrains-mono-400.woff2) format("woff2")}@font-face{font-family:JetBrains Mono;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/jetbrains-mono-500.woff2) format("woff2")}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/space-grotesk-400.woff2) format("woff2")}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/space-grotesk-500.woff2) format("woff2")}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/space-grotesk-600.woff2) format("woff2")}@font-face{font-family:Space Grotesk;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/space-grotesk-700.woff2) format("woff2")}.adventure-ui,.coding-home{--ad-text:#f3f2ea;--ad-muted:#a0aaa7;--ad-line:#26302e;--ad-green:#8cd9b0;--ad-amber:#efbd7e;--ad-gold:#ffd747;color:var(--ad-text);font-family:DM Sans,system-ui,sans-serif}.adventure-ui a,.coding-home a{color:inherit}.adventure-ui a:focus-visible,.adventure-ui button:focus-visible,.coding-home a:focus-visible{outline:3px solid var(--ad-gold);outline-offset:5px}.adventure-eyebrow{display:block;color:var(--ad-green);font:500 10px/1.5 JetBrains Mono,monospace;letter-spacing:.16em}.coding-home{max-width:1160px;margin:0 auto;padding:34px 44px 26px}.coding-home-nav{display:flex;align-items:center;justify-content:space-between;gap:20px}.coding-brand-symbol{display:inline-grid;place-items:center;width:30px;height:30px;color:var(--ad-gold);font-size:29px;letter-spacing:0}.coding-brand-subtitle{border-left:1px solid #414740;padding-left:13px;margin-left:5px;color:#9ca8a3;font-size:10px;letter-spacing:.13em}.coding-home-nav-note{color:var(--ad-muted);font-size:12px}.coding-home-hero{text-align:center;padding:57px 0 36px}.coding-home-hero .adventure-eyebrow{color:#a1afa4}.coding-home-hero h1{font-size:clamp(38px,5vw,62px);font-weight:600;line-height:1.07;letter-spacing:-.055em;margin:19px 0 17px}.coding-home-hero em{font-style:normal;color:var(--ad-gold)}.coding-home-hero p{color:var(--ad-muted);font-size:15px;line-height:1.8;margin:0}.coding-mode-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:22px;gap:22px}.coding-mode-card{display:block;position:relative;overflow:hidden;border:1px solid #30302b;border-radius:23px;background:linear-gradient(155deg,#191914,#0d1112 80%);transition:border-color .2s,transform .2s}.coding-mode-card:hover{transform:translateY(-4px);border-color:#878053}.coding-mode-adventure{background:linear-gradient(155deg,#14231d,#0d1414 80%);border-color:#2b3a31}.coding-mode-adventure:hover{border-color:#5d9176}.coding-mode-kicker{position:absolute;left:27px;top:23px;z-index:2;color:#b2b49f;font:400 9px JetBrains Mono,monospace;letter-spacing:.11em}.coding-mode-premium{position:absolute;top:20px;right:23px;z-index:2;color:#bae1c4;border:1px solid #4b6350;border-radius:30px;padding:4px 9px;font:500 8px JetBrains Mono,monospace;letter-spacing:.09em}.coding-adventure-art,.coding-duel-art{height:230px;position:relative;overflow:hidden}.coding-duel-art{display:grid;place-items:center;color:var(--ad-gold)}.coding-duel-orbit{position:absolute;top:49px;width:175px;height:175px;border:1px solid #b09b3240;border-radius:50%;box-shadow:0 0 0 28px #6b631a0c,0 0 0 55px #6b631a08}.coding-duel-orbit:after,.coding-duel-orbit:before{content:"";position:absolute;width:6px;height:6px;border-radius:50%;background:#e5d25b;left:22px;top:20px}.coding-duel-orbit:after{left:auto;top:auto;right:20px;bottom:22px;background:#837e48}.coding-duel-frame{width:104px;height:112px;margin-top:25px;display:grid;place-items:center;background:linear-gradient(140deg,#353520,#191e19);border:1px solid #6b6640;border-radius:21px;transform:rotate(-7deg);box-shadow:0 12px 50px #0005}.coding-duel-frame svg{width:49px;height:49px;transform:rotate(7deg);stroke-width:1.3}.coding-art-tag{position:absolute;left:27px;bottom:10px;color:#9aa594;font:400 8px JetBrains Mono,monospace;letter-spacing:.13em}.coding-art-code{position:absolute;right:31px;bottom:20px;color:#5b614d;font:500 16px JetBrains Mono,monospace;transform:rotate(9deg)}.coding-adventure-art:before{content:"";position:absolute;inset:25px 35px -20px;background:radial-gradient(ellipse,#49794a25,transparent 67%)}.coding-adventure-art img{position:absolute;width:238px;height:295px;top:-13px;left:calc(50% - 119px);transform:rotate(-12deg)}.coding-mode-copy{position:relative;padding:13px 27px 26px}.coding-mode-copy h2{font-size:27px;font-weight:600;letter-spacing:-.04em;margin:0 0 9px}.coding-mode-copy p{color:#adb3a6;font-size:13px;line-height:1.75;max-width:370px;min-height:46px;margin:0 0 20px}.coding-mode-action{display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--ad-gold);font-size:12px;font-weight:600;padding-top:17px;border-top:1px solid #35382b}.coding-mode-adventure .coding-mode-action{color:#a8e5bc;border-color:#2c4234}.coding-mode-action svg{width:20px}.coding-home-footer{display:flex;justify-content:space-between;gap:20px;color:#87928d;font-size:11px;padding:26px 4px 0}.coding-home-footer span:first-child{display:flex;align-items:center;gap:9px}.coding-home-footer svg{width:16px;height:16px}.adventure-shell{max-width:1280px;padding:32px 50px 25px;margin:0 auto}.adventure-back{display:inline-block;color:#a6b6aa!important;font-size:11px;margin-bottom:25px}.adventure-back:hover{color:#dcf7e4!important}.adventure-hero{display:grid;grid-template-columns:1.2fr 1fr;grid-gap:30px;gap:30px;align-items:center;min-height:310px;margin-bottom:28px}.adventure-hero h1,.adventure-pair-intro h1{font:600 clamp(38px,4.6vw,60px)/1.1 Space Grotesk,sans-serif;letter-spacing:-.055em;margin:15px 0 16px}.adventure-hero em,.adventure-pair-intro em{color:#a7dbb3;font-style:normal}.adventure-hero p,.adventure-pair-intro p{color:var(--ad-muted);font-size:14px;line-height:1.8;max-width:420px;margin:0 0 21px}.adventure-primary{display:inline-flex;align-items:center;justify-content:center;gap:27px;padding:12px 17px;background:var(--ad-gold);color:#1a211c!important;border-radius:9px;font-size:12px;font-weight:700}.adventure-primary:hover{background:#ffe96e}.adventure-primary svg{width:18px;height:18px}.adventure-hero-stats{display:flex;gap:22px;margin-top:20px;font-size:11px;color:#9aa79e}.adventure-hero-stats strong{color:#dfebdd;font:500 12px JetBrains Mono,monospace;padding-right:5px}.adventure-hero-art{position:relative;height:335px;display:grid;place-items:center}.adventure-hero-art img{width:245px;height:303px;transform:rotate(9deg);filter:drop-shadow(0 20px 30px #0007)}.adventure-art-orbit{position:absolute;width:315px;height:250px;border:1px dashed #34433a;border-radius:50%;transform:rotate(-18deg)}.adventure-art-label{position:absolute;bottom:1px;right:20px;display:flex;align-items:center;gap:8px;color:#9cb69f;font:400 8px JetBrains Mono,monospace;letter-spacing:.1em}.adventure-dot{display:inline-block;width:6px;height:6px;background:var(--ad-green);border-radius:50%}.adventure-chapters{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px;padding-bottom:30px}.adventure-chapter{border:1px solid #29322f;border-radius:13px;padding:16px 20px;display:flex;align-items:center;text-align:left;gap:15px;background:#111817;color:#d4ddd2;cursor:pointer;font-family:inherit;transition:background .2s,border-color .2s}.adventure-chapter.is-selected{background:#1a2b21;border-color:#4e7859}.adventure-chapter.chapter-canyon.is-selected{background:#2c221b;border-color:#856444}.adventure-chapter:hover{border-color:#849384}.adventure-chapter-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:12px;background:#273e2d;color:#acd8b3;flex-shrink:0}.chapter-canyon .adventure-chapter-icon{background:#3c2d20;color:#e9bc81}.adventure-chapter strong{display:block;font:600 17px Space Grotesk,sans-serif;letter-spacing:-.025em}.adventure-chapter small{display:block;margin-top:5px;color:#9dac9c;font:400 10px JetBrains Mono,monospace}.adventure-chapter-arrow{margin-left:auto;color:#91aa91}.adventure-chapter-arrow svg{width:18px}.adventure-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:11px 0 23px}.adventure-section-heading h2{font-size:29px;font-weight:600;letter-spacing:-.04em;margin-top:6px}.adventure-section-heading p{color:#9daaa0;font-size:12px;margin:7px 0 0}.adventure-map-count{font:400 10px JetBrains Mono,monospace;color:#a5b2a8;white-space:nowrap;padding-bottom:5px}.adventure-map-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:19px;gap:19px}.adventure-map-card{position:relative;display:block;overflow:hidden;border:1px solid #2a3a2f;border-radius:18px;background:#101b16;transition:transform .2s,border-color .2s}.adventure-map-card:hover{transform:translateY(-4px);border-color:#698169}.adventure-map-card.terrain-canyon{background:#1c1814;border-color:#463629}.adventure-map-card.terrain-canyon:hover{border-color:#a67c55}.adventure-map-card-art{height:235px;position:relative;background:radial-gradient(ellipse at 50% 70%,#223c27,#111b17 80%);overflow:hidden}.terrain-canyon .adventure-map-card-art{background:radial-gradient(ellipse at 50% 70%,#513624,#211b16 80%)}.adventure-map-card-art img{position:absolute;width:207px;height:256px;left:calc(50% - 104px);top:4px;transform:rotate(-7deg);filter:drop-shadow(0 10px 15px #0005)}.adventure-map-number,.adventure-map-range{position:absolute;z-index:1;font:400 8px JetBrains Mono,monospace;color:#c3d3b9;letter-spacing:.12em}.adventure-map-number{top:18px;left:18px}.adventure-map-range{bottom:12px;right:17px;padding:4px 7px;background:#0f1b16cf;border:1px solid #3b5141;border-radius:4px}.terrain-canyon .adventure-map-range{background:#241b14dc;border-color:#775237;color:#e3c299}.adventure-map-card-copy{padding:18px 20px 20px}.adventure-map-card-title{display:flex;align-items:center;justify-content:space-between;gap:8px}.adventure-map-card-title h3{font-size:20px;font-weight:600;letter-spacing:-.035em;margin:0}.adventure-map-card-title svg{width:19px;color:#a1c2a1}.adventure-map-card-copy p{color:#9cae9f;font-size:11px;line-height:1.7;margin:7px 0 20px;min-height:38px}.terrain-canyon .adventure-map-card-copy p{color:#c2ac91}.adventure-map-card-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font:400 9px JetBrains Mono,monospace;color:#b0c0ae;margin-bottom:10px}.adventure-progress{height:3px;overflow:hidden;border-radius:3px;background:#2d3b2e}.adventure-progress span{height:100%;display:block;background:#a9d49d}.terrain-canyon .adventure-progress{background:#46382b}.terrain-canyon .adventure-progress span{background:#edbb7a}.adventure-footer{display:flex;align-items:center;gap:10px;color:#97a498;font-size:11px;padding:30px 0 0;margin-top:32px;border-top:1px solid #28342d}.adventure-footer svg{width:18px}.adventure-footer span:last-child{margin-left:auto;font:400 8px JetBrains Mono,monospace;letter-spacing:.12em}.adventure-empty,.adventure-loading{min-height:360px;padding:90px 20px;text-align:center;color:var(--ad-muted)}.adventure-loading{display:flex;justify-content:center;align-items:center;gap:14px}.adventure-empty h1{color:var(--ad-text)}.adventure-pairing{padding-top:35px}.adventure-pair-layout{display:grid;grid-template-columns:1fr 420px;grid-gap:70px;gap:70px;align-items:start;padding-top:25px}.adventure-pair-intro h1{font-size:clamp(34px,4vw,49px)}.adventure-pair-art{height:252px;overflow:hidden;margin:-10px 0 15px;background:radial-gradient(ellipse at center,#24402d44,transparent 65%)}.adventure-pair-art img{width:204px;height:253px;margin-left:50px;transform:rotate(-8deg)}.adventure-premium{display:inline-flex;align-items:center;gap:9px;color:#b3d8b7;font-size:11px}.adventure-premium svg{width:16px}.adventure-ui .pair{max-width:420px;width:100%;padding:26px;border:1px solid #384a3b;border-radius:19px;background:#101a16}.adventure-ui .pair h2{font:600 23px/1.3 Space Grotesk,sans-serif;letter-spacing:-.035em}.adventure-ui .pair .notice{border:1px solid #536144;color:#dce0bd;background:#252b1d;font-size:11px}.adventure-ui .pair .muted{color:#a6b5a9}.adventure-ui .pair .steps{text-align:left;line-height:1.9;color:#b2c1b4}.adventure-trail-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin:0 0 25px}.adventure-trail-heading .adventure-back{display:block;width:-moz-fit-content;width:fit-content;margin-bottom:16px}.adventure-trail-heading h1{font-size:43px;font-weight:600;letter-spacing:-.045em;margin:7px 0}.adventure-trail-heading p{color:var(--ad-muted);margin:0;font-size:13px}.adventure-trail-summary{text-align:right;padding-bottom:5px}.adventure-trail-summary strong{display:block;font:500 28px Space Grotesk,sans-serif;color:#c4e5bd}.adventure-trail-summary strong span{color:#849b84;font-size:18px}.adventure-trail-summary small{display:block;font:400 8px JetBrains Mono,monospace;color:#9eaf9d;letter-spacing:.11em;margin-top:8px}.adventure-trail-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);grid-gap:26px;gap:26px;align-items:start}.adventure-map-canvas{border:1px solid #334438;border-radius:18px;background:radial-gradient(ellipse at 50% 50%,#19332244,transparent 65%),#0e1713;padding:20px 23px 13px}.adventure-map-canvas.terrain-canyon{border-color:#524032;background:radial-gradient(ellipse at 50% 50%,#74502f33,transparent 70%),#1b1613}.adventure-map-canvas-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.adventure-map-canvas-head .adventure-eyebrow{color:#b6c2aa;font-size:8px}.adventure-canvas-key{display:flex;align-items:center;gap:6px;color:#a5bca7;font-size:10px}.adventure-map-parts{display:flex;gap:8px;margin-top:16px}.adventure-map-parts button{flex:1 1;border:1px solid #354738;border-radius:8px;background:#101b15;padding:7px 9px;color:#b5c3ac;text-align:left;cursor:pointer;font:500 11px Space Grotesk,sans-serif}.adventure-map-parts button small{display:block;margin-top:4px;font:400 8px JetBrains Mono,monospace;color:#99ab94}.adventure-map-parts button[aria-pressed=true]{background:#283b25;border-color:#81915f;color:#f1e8ad}.terrain-canyon .adventure-map-parts button{background:#2b2018;border-color:#624731}.terrain-canyon .adventure-map-parts button[aria-pressed=true]{background:#443320;border-color:#bd9460}.trail-map{aspect-ratio:400/495;position:relative;width:100%;max-width:400px;margin:15px auto 0}.trail-map>img,.trail-route{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.trail-route{color:#bce995}.terrain-canyon .trail-route{color:#ffdf85}.trail-stop{position:absolute;z-index:2;width:40px;height:40px;border-radius:50%;transform:translate(-50%,-50%);display:grid;place-items:center;background:#1e3021;border:2px solid #bdd274;color:#f5e9a1!important;box-shadow:0 4px 0 #101d17,0 0 0 4px #0c1c1859;font:600 11px JetBrains Mono,monospace;transition:background .15s,box-shadow .15s}.trail-stop:hover{background:#394c2b;box-shadow:0 4px 0 #101d17,0 0 0 7px #bdd27433}.trail-stop.is-solved{background:#b5da95;color:#163422!important;border-color:#d0ebb0}.trail-stop.is-unavailable{background:#283129;border-color:#617361;color:#a7b59a!important;box-shadow:0 3px 0 #132019}.terrain-canyon .trail-stop{background:#4c3221;border-color:#f0c381;color:#f5dab2!important;box-shadow:0 4px 0 #241910,0 0 0 4px #2f1a154d}.terrain-canyon .trail-stop.is-solved{background:#e6c385;color:#3c2a17!important}.terrain-canyon .trail-stop.is-unavailable{background:#3d3025;border-color:#8e7357;color:#bfa78a!important}.trail-compass{position:absolute;right:3%;top:12%;text-align:center;font:400 10px/1.7 JetBrains Mono,monospace;color:#819679}.trail-camp{position:absolute;bottom:6%;left:43%;font:400 6px JetBrains Mono,monospace;letter-spacing:.1em;color:#b6be89}.adventure-map-tip{text-align:center;color:#a2b598;font-size:10px;margin:0 0 5px}.adventure-task-panel{padding:23px 23px 17px;background:#0f1414;border:1px solid #2d3631;border-radius:18px}.adventure-task-panel-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding-bottom:18px}.adventure-task-panel-head .adventure-eyebrow{font-size:8px;color:#9ead9c}.adventure-task-panel-head h2{font-size:22px;font-weight:600;margin-top:4px}.adventure-start-link{display:inline-flex;align-items:center;gap:6px;color:#c4e8af!important;font-size:10px}.adventure-start-link svg{width:15px}.adventure-task-list{list-style:none;margin:0;padding:0}.adventure-task-row{display:flex;align-items:center;gap:14px;padding:14px 4px;border-top:1px solid #27332c}.adventure-task-row:hover{background:#17251b}.adventure-task-row>svg{margin-left:auto;color:#8ba385;width:17px;flex-shrink:0}.adventure-task-number{width:33px;height:34px;flex-shrink:0;display:grid;place-items:center;border:1px solid #3b4c39;border-radius:9px;color:#b1bea5;font:400 10px JetBrains Mono,monospace;background:#182219}.adventure-task-number.is-solved{color:#b8dcaa;border-color:#547246;background:#23341e}.adventure-task-number svg{width:18px}.adventure-task-copy{min-width:0}.adventure-task-copy strong{display:block;font-size:12px;font-weight:500;line-height:1.5;overflow-wrap:anywhere}.adventure-task-copy small{display:block;color:#9caf99;font:400 9px JetBrains Mono,monospace;margin-top:4px;text-transform:capitalize}.adventure-task-row.is-unavailable{color:#88958a}.adventure-task-row.is-unavailable:hover{background:transparent}.adventure-task-row.is-unavailable small{color:#839080}.adventure-task-note{border-top:1px solid #27332c;padding-top:17px;color:#a6b4a2;font-size:10px;margin:0;line-height:1.7}.adventure-complete{display:flex;align-items:center;gap:10px;padding:14px 16px;background:#1b2e20;border:1px solid #456944;border-radius:10px;color:#c1e1b4;font-size:12px}.adventure-complete svg{width:18px}.adventure-advance{color:var(--good)}.adventure-advance,.adventure-advance-error{font-size:12px;margin:14px 0}.adventure-workspace .problem-back{color:#b4dcab}.adventure-workspace .statement-tab.active:after{background:#acd7a2}.adventure-workspace .problem-section-rule{background:#a2c994}@media (max-width:1000px){.adventure-shell{padding-left:30px;padding-right:30px}.adventure-map-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.adventure-pair-layout{gap:35px;grid-template-columns:1fr 380px}.adventure-hero-art{height:300px}.adventure-art-orbit{width:275px;height:225px}}@media (max-width:760px){.coding-home{padding:22px 22px 24px}.coding-home-hero{padding:42px 0 28px}.coding-home-hero h1{font-size:47px}.coding-home-nav-note{display:none}.coding-mode-grid{gap:14px}.coding-mode-kicker{left:18px;top:20px;font-size:7px}.coding-mode-premium{top:39px;right:16px;font-size:7px}.coding-mode-copy{padding:13px 18px 20px}.coding-mode-copy h2{font-size:23px}.coding-mode-copy p{font-size:12px;min-height:83px}.coding-mode-action{font-size:11px}.coding-adventure-art,.coding-duel-art{height:204px}.coding-adventure-art img{width:190px;height:235px;left:calc(50% - 95px);top:13px}.coding-art-tag{left:18px;font-size:6px}.coding-home-footer{flex-direction:column;gap:8px}.adventure-hero{grid-template-columns:1fr 180px;gap:0;min-height:280px}.adventure-hero h1{font-size:39px}.adventure-hero-art{height:220px}.adventure-hero-art img{width:174px;height:216px}.adventure-art-orbit{width:195px;height:160px}.adventure-art-label{display:none}.adventure-hero p{font-size:12px}.adventure-chapter{padding:13px 14px;gap:10px}.adventure-chapter strong{font-size:15px}.adventure-chapter-icon{width:32px;height:34px}.adventure-chapter-arrow{display:none}.adventure-pair-layout{grid-template-columns:1fr;gap:20px;padding-top:0}.adventure-pair-intro h1{font-size:39px}.adventure-pair-art{display:none}.adventure-premium{margin-bottom:7px}.adventure-ui .pair{max-width:100%}.adventure-trail-layout{grid-template-columns:1fr}.adventure-map-canvas{max-width:520px;width:100%;margin:0 auto}.adventure-task-panel{width:100%}.adventure-trail-heading h1{font-size:35px}.adventure-trail-summary strong{font-size:24px}.adventure-trail-heading p{font-size:11px}}@media (max-width:520px){.coding-mode-grid{grid-template-columns:1fr}.coding-home-hero h1{font-size:41px}.coding-home-hero p{font-size:13px}.coding-mode-copy p{min-height:0}.coding-mode-copy h2{font-size:26px}.coding-mode-kicker{font-size:8px}.coding-mode-premium{top:20px}.coding-adventure-art img{width:233px;height:288px;left:calc(50% - 117px);top:-21px}.coding-art-tag{font-size:7px}.adventure-shell{padding:25px 20px 20px}.adventure-hero{display:block;margin-bottom:26px}.adventure-hero-art{display:none}.adventure-hero h1{font-size:44px}.adventure-chapters{gap:8px;padding-bottom:24px}.adventure-chapter{display:block;padding:12px 10px}.adventure-chapter-icon{width:30px;height:30px;margin-bottom:9px;border-radius:9px}.adventure-chapter-icon svg{width:18px}.adventure-chapter strong{font-size:14px}.adventure-chapter small{font-size:8px}.adventure-section-heading{gap:10px}.adventure-section-heading h2{font-size:26px}.adventure-section-heading p{font-size:11px}.adventure-map-count{display:none}.adventure-map-grid{grid-template-columns:1fr}.adventure-map-card-art{height:225px}.adventure-map-card-art img{width:217px;height:269px;left:calc(50% - 108px);top:-6px}.adventure-map-card-copy p{min-height:0}.adventure-map-card-copy h3{font-size:22px}.adventure-footer span:last-child{display:none}.adventure-trail-heading{align-items:flex-end;gap:12px}.adventure-trail-heading h1{font-size:32px}.adventure-trail-summary{flex-shrink:0}.adventure-trail-summary small{font-size:6px;letter-spacing:0}.adventure-map-canvas{padding:17px 15px 12px}.adventure-task-panel{padding:19px 17px}.trail-stop{width:37px;height:37px;font-size:10px}.adventure-ui .pair{padding:23px 18px}.adventure-ui .pair h2{font-size:21px}.adventure-workspace .session-bar{flex-wrap:wrap;gap:8px}.session-bar{gap:9px;padding:10px 12px;flex-wrap:wrap}.session-who{font-size:11px}.session-bar .btn{font-size:11px;padding:7px 9px}}@media (prefers-reduced-motion:reduce){.adventure-chapter,.adventure-map-card,.coding-mode-card,.trail-stop{transition:none}.adventure-map-card:hover,.coding-mode-card:hover{transform:none}}:root{--bg:#08090c;--panel:#0d0f14;--line:rgba(255,255,255,0.09);--text:#f2f5fa;--muted:rgba(242,245,250,0.5);--gold:#ffc61a;--good:#57deb6;--bad:#ff9b82;--warn:#ffd76b;--radius:14px;color-scheme:dark}*{box-sizing:border-box}body,html{margin:0;height:100%;background:var(--bg);color:var(--text);font:400 15px/1.6 DM Sans,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:Space Grotesk,system-ui,sans-serif;letter-spacing:-.02em}h1{font-size:28px;margin:6px 0 4px}h2{font-size:18px;margin:0 0 2px}h3{font-size:15px;margin:22px 0 6px}a{color:var(--gold);text-decoration:none}a:hover{color:#ffde6b}.muted{color:var(--muted)}.small{font-size:13px}.spacer{flex:1 1}.centre{min-height:100dvh;display:grid;place-items:center;padding:32px 20px;grid-gap:16px;gap:16px;align-content:center}.wrap{max-width:860px;margin:0 auto;padding:28px 20px 72px}.page-head{margin-bottom:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 18px;border:0;border-radius:11px;background:linear-gradient(180deg,#ffde6b,var(--gold) 55%,#dda800);color:#1a1200;font:700 14px Space Grotesk,system-ui,sans-serif;cursor:pointer}.btn:hover{filter:brightness(1.06);color:#1a1200}.btn:disabled{opacity:.45;cursor:not-allowed;filter:none}.btn-quiet{background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text)}.btn-quiet:hover{border-color:rgba(255,198,26,.45);color:var(--text)}select{min-height:36px;padding:0 10px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);font:500 13px DM Sans,sans-serif}.card{width:min(420px,100%);padding:28px;border-radius:22px;border:1px solid var(--line);background:var(--panel);text-align:center}.pair h2{font-size:22px}.qr{width:240px;height:240px;margin:22px auto 14px;padding:10px;border-radius:16px;background:#fff;display:grid;place-items:center}.qr svg{display:block}.qr svg,.qr-skeleton{width:100%;height:100%}.qr-skeleton{background:#e9e9e9;border-radius:8px}.code{margin:4px 0;font:700 26px JetBrains Mono,ui-monospace,monospace;letter-spacing:.12em;color:var(--gold)}.steps{margin:22px 0 0;padding-left:20px;text-align:left;color:var(--muted);font-size:13.5px}.steps li{margin:6px 0}.notice{padding:12px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:14px}.notice.error{border-color:rgba(255,155,130,.4);color:var(--bad)}.session-bar{position:-webkit-sticky;position:sticky;top:0;z-index:10;gap:16px;padding:10px 20px;border-bottom:1px solid var(--line);background:rgba(8,9,12,.85);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.brand,.session-bar{display:flex;align-items:center}.brand{gap:8px;color:var(--text);font:700 12px JetBrains Mono,monospace;letter-spacing:.24em}.brand-mark{color:var(--gold)}.session-who{margin-left:auto;font-size:13px;color:var(--muted)}.session-who strong{color:var(--text)}.section{margin-bottom:34px}.problems{list-style:none;margin:14px 0 0;padding:0}.problems li{margin-bottom:8px}.problem{display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.02);color:var(--text)}a.problem:hover{border-color:rgba(255,198,26,.4);color:var(--text)}.problem.locked{opacity:.5}.problem-mark{width:18px;text-align:center;color:var(--gold)}.problem-body{display:flex;flex-direction:column;min-width:0;flex:1 1}.problem-title{font:600 15px Space Grotesk,sans-serif}.chip{padding:4px 9px;border-radius:20px;border:1px solid var(--line);font:500 10px JetBrains Mono,monospace;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.chip-hard{color:var(--bad);border-color:rgba(255,155,130,.35)}.chip-medium{color:var(--warn);border-color:rgba(255,215,107,.3)}.split{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(420px,1.1fr);height:calc(100dvh - 53px)}.pane{min-width:0;overflow-y:auto}.statement{padding:0;border-right:1px solid var(--line)}.statement-tabs{position:-webkit-sticky;position:sticky;top:0;z-index:4;display:flex;gap:4px;padding:10px 16px 0;border-bottom:1px solid var(--line);background:rgba(8,9,12,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.statement-tab{position:relative;min-height:38px;padding:0 13px 9px;border:0;background:transparent;color:var(--muted);font:650 13px Space Grotesk,system-ui,sans-serif;cursor:pointer}.statement-tab:hover{color:var(--text)}.statement-tab:after{content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;border-radius:2px 2px 0 0;background:transparent}.statement-tab.active{color:var(--text)}.statement-tab.active:after{background:var(--gold)}.statement-tab-content{padding:18px 26px 60px}.back{font-size:13px}.prose p,.sample{margin:10px 0}.sample{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px;padding:12px;border:1px solid var(--line);border-radius:12px}pre{margin:4px 0 0;padding:10px;border-radius:8px;background:rgba(255,255,255,.03);font:500 12.5px/1.5 JetBrains Mono,ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere}.editor{display:flex;flex-direction:column;overflow:hidden}.toolbar{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line)}.monaco{flex:1 1;min-height:240px}.results{border-top:1px solid var(--line);padding:14px 16px 18px;max-height:42%;overflow-y:auto}.kbd-hint{margin-top:12px}.verdict{display:flex;flex-direction:column;gap:6px}.verdict-line{margin:0;font:700 15px Space Grotesk,sans-serif}.verdict.good .verdict-line{color:var(--good)}.verdict.bad .verdict-line{color:var(--bad)}.verdict.warn .verdict-line{color:var(--warn)}.verdict.pending{flex-direction:row;flex-wrap:wrap;align-items:center;gap:10px;color:var(--muted)}.hint{margin:2px 0;font-size:13px;color:var(--warn)}.reward{margin:0;color:var(--gold);font:650 12.5px Space Grotesk,system-ui,sans-serif}.output{max-height:180px;overflow:auto}.output.error{color:var(--bad)}.diff-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px}.solved-actions{margin-top:12px}.spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.18);border-top:2px solid var(--gold);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}@media (max-width:900px){.split{grid-template-columns:1fr;height:auto}.statement{border-right:0;border-bottom:1px solid var(--line)}.statement-tabs{position:-webkit-sticky;position:sticky;top:0}.statement-tab-content{padding:18px 18px 44px}.monaco{height:50vh}.results{max-height:none}.diff-grid,.sample{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.spinner{animation:none}}.current-result{padding-bottom:14px}.result-section-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px;color:var(--muted);font:700 10px JetBrains Mono,ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase}.submission-history{margin:0;padding:0}.submission-history-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:14px}.submission-history-head h3{margin:0;font-size:15px}.submission-history-head p{margin:2px 0 0}.history-refresh{flex:0 0 auto;border:0;background:transparent;color:var(--muted);padding:3px 0;font:600 12px DM Sans,sans-serif;cursor:pointer}.history-refresh:hover{color:var(--text)}.history-refresh:disabled{opacity:.5;cursor:default}.submission-history-empty{display:flex;flex-direction:column;gap:2px;padding:16px;border:1px dashed var(--line);border-radius:12px;background:rgba(255,255,255,.015)}.submission-list{display:flex;flex-direction:column;gap:7px}.submission-entry{overflow:hidden;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.018);transition:border-color .12s ease,background .12s ease}.submission-entry.open,.submission-entry:hover{border-color:rgba(255,198,26,.24);background:rgba(255,255,255,.025)}.submission-summary{width:100%;min-height:58px;display:grid;grid-template-columns:10px minmax(0,1fr) auto 18px;align-items:center;grid-gap:11px;gap:11px;padding:10px 12px;border:0;background:transparent;color:var(--text);text-align:left;cursor:pointer}.submission-summary:hover{background:rgba(255,255,255,.02)}.submission-dot{width:8px;height:8px;border-radius:50%;background:var(--muted);box-shadow:0 0 0 3px rgba(255,255,255,.025)}.submission-dot.good{background:var(--good)}.submission-dot.bad{background:var(--bad)}.submission-dot.warn{background:var(--warn)}.submission-dot.pending{background:var(--gold)}.submission-summary-main{min-width:0;display:flex;flex-direction:column;gap:1px}.submission-verdict-label{font:650 13.5px Space Grotesk,sans-serif}.submission-meta,.submission-verdict-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.submission-runtime{white-space:nowrap;font-family:JetBrains Mono,ui-monospace,monospace}.submission-chevron{color:var(--muted);font-size:14px;text-align:center}.submission-expanded{padding:14px;border-top:1px solid var(--line);background:rgba(0,0,0,.12)}.submission-loading{display:flex;align-items:center;gap:9px;padding:5px 0}.submission-result-block{padding-bottom:14px}.submission-result-after-code{margin-top:14px;padding-top:14px;padding-bottom:0;border-top:1px solid var(--line)}.eyebrow{display:block;margin-bottom:7px;color:var(--muted);font:700 10px JetBrains Mono,ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase}.submission-code-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:2px;margin-bottom:8px}.submission-code-head>div{min-width:0}.submission-code-language{display:block;margin-top:-3px}.submission-use-code{min-height:34px;padding:0 12px;white-space:nowrap;font-size:12px}.submission-code{max-height:320px;overflow:auto;margin:0;padding:13px;border:1px solid rgba(255,255,255,.055);background:#090b0f;white-space:pre;overflow-wrap:normal;-moz-tab-size:4;tab-size:4}@media (max-width:640px){.submission-history-head{align-items:center}.submission-summary{grid-template-columns:10px minmax(0,1fr) 18px}.submission-runtime{display:none}.submission-code-head{align-items:flex-start}}.statement{background:radial-gradient(circle at 12% 0,rgba(255,198,26,.035),transparent 30%),#090a0e}.statement-tabs{padding:8px 18px 0;background:rgba(9,10,14,.92);box-shadow:0 10px 30px rgba(0,0,0,.12)}.statement-tab{min-height:36px;padding:0 12px 8px;font-size:12.5px;letter-spacing:-.01em}.statement-tab-content{padding:0 0 68px}.statement-tab-content>div[role=tabpanel]{padding:22px 28px 60px}.problem-document{width:min(100%,820px);margin:0 auto;padding:26px 30px 72px}.problem-document-head{padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.085)}.problem-breadcrumb-row{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:12px}.problem-back{color:rgba(242,245,250,.56);font:600 12.5px DM Sans,system-ui,sans-serif}.problem-back:hover{color:var(--text)}.problem-slug{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(242,245,250,.3);font:500 10px JetBrains Mono,ui-monospace,monospace;letter-spacing:.04em}.problem-document-head h1{margin:0;font-size:clamp(27px,3vw,34px);line-height:1.16;letter-spacing:-.035em}.problem-meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px 14px;margin-top:18px}.difficulty-pill{display:inline-flex;align-items:center;min-height:27px;padding:0 10px;border:1px solid rgba(255,255,255,.1);border-radius:999px;background:rgba(255,255,255,.035);font:700 9px JetBrains Mono,ui-monospace,monospace;letter-spacing:.11em;text-transform:uppercase}.difficulty-easy{color:#78e7c7;border-color:rgba(87,222,182,.25);background:rgba(87,222,182,.06)}.difficulty-medium{color:#ffe08d;border-color:rgba(255,215,107,.24);background:rgba(255,215,107,.055)}.difficulty-hard{color:#ffad99;border-color:rgba(255,155,130,.26);background:rgba(255,155,130,.055)}.meta-item{display:inline-flex;align-items:baseline;gap:6px;min-height:27px;padding-left:13px;border-left:1px solid rgba(255,255,255,.08)}.meta-item>span{color:rgba(242,245,250,.38);font:600 9px JetBrains Mono,ui-monospace,monospace;letter-spacing:.09em;text-transform:uppercase}.meta-item strong{color:rgba(242,245,250,.83);font:600 11px JetBrains Mono,ui-monospace,monospace}.problem-section{padding-top:28px}.problem-section+.problem-section{margin-top:6px;border-top:1px solid rgba(255,255,255,.06)}.problem-section-heading{display:flex;align-items:center;gap:10px;margin-bottom:14px}.problem-section-rule{width:16px;height:2px;flex:none;border-radius:999px;background:linear-gradient(90deg,var(--gold),rgba(255,198,26,.28));box-shadow:0 0 16px rgba(255,198,26,.18)}.problem-section-heading h2{margin:0;color:rgba(242,245,250,.92);font-size:16px;letter-spacing:-.018em}.problem-section-body,.prose{color:rgba(242,245,250,.76)}.prose{font-size:14.5px;line-height:1.75}.prose p{margin:0 0 13px}.prose p:last-child{margin-bottom:0}.prose strong{color:rgba(255,255,255,.96);font-weight:650}.constraint-row code,.prose code{padding:2px 6px;border:1px solid rgba(255,198,26,.14);border-radius:6px;background:rgba(255,198,26,.055);color:#ffe07d;font:500 .9em/1.5 JetBrains Mono,ui-monospace,monospace}.prose-heading{margin:18px 0 8px;color:rgba(255,255,255,.92);font:650 14px Space Grotesk,system-ui,sans-serif}.problem-list{margin:10px 0 12px;padding-left:20px}.problem-list li{margin:5px 0;padding-left:3px}.problem-list li::marker{color:rgba(255,198,26,.7)}.problem-code-block{margin:14px 0;padding:14px 16px;border:1px solid rgba(255,255,255,.07);border-radius:11px;background:#07090c;color:#e8edf5;white-space:pre;overflow:auto;overflow-wrap:normal;font:500 12.5px/1.65 JetBrains Mono,ui-monospace,monospace}.problem-code-block code{padding:0;border:0;background:transparent;color:inherit}.problem-figure{margin:20px 0 6px;overflow:hidden;border:1px solid rgba(255,255,255,.09);border-radius:15px;background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.015)),#0b0d12;box-shadow:0 18px 42px rgba(0,0,0,.2)}.problem-figure img{display:block;width:100%;max-height:520px;object-fit:contain;background:#08090d}.problem-figure figcaption{padding:9px 12px 10px;border-top:1px solid rgba(255,255,255,.06);color:rgba(242,245,250,.46);font-size:11.5px;text-align:center}.constraint-list{overflow:hidden;border:1px solid rgba(255,255,255,.075);border-radius:12px;background:rgba(255,255,255,.018)}.constraint-row{display:grid;grid-template-columns:10px minmax(0,1fr);grid-gap:10px;gap:10px;align-items:start;padding:10px 13px;color:rgba(242,245,250,.76);font:500 12.5px/1.65 JetBrains Mono,ui-monospace,monospace}.constraint-row+.constraint-row{border-top:1px solid rgba(255,255,255,.05)}.constraint-mark{width:4px;height:4px;margin-top:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 9px rgba(255,198,26,.32)}.samples-list{display:grid;grid-gap:14px;gap:14px}.sample-card{overflow:hidden;border:1px solid rgba(255,255,255,.08);border-radius:13px;background:#0a0c10;box-shadow:inset 0 1px rgba(255,255,255,.025)}.sample-card-head{display:flex;align-items:center;min-height:35px;padding:0 13px;border-bottom:1px solid rgba(255,255,255,.06);background:rgba(255,255,255,.018)}.sample-card-head span,.sample-label,.sample-note>span{color:rgba(242,245,250,.44);font:700 9px JetBrains Mono,ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase}.sample-grid{display:grid;grid-template-columns:1fr 1fr}.sample-pane{min-width:0;padding:12px 13px 14px}.sample-pane+.sample-pane{border-left:1px solid rgba(255,255,255,.055)}.sample-pane pre{margin:6px 0 0;padding:0;border-radius:0;background:transparent;color:rgba(245,248,252,.92);white-space:pre;overflow:auto;overflow-wrap:normal;font:500 12.5px/1.6 JetBrains Mono,ui-monospace,monospace}.sample-note{padding:11px 13px 13px;border-top:1px solid rgba(255,255,255,.055);background:rgba(255,255,255,.012)}.sample-note .prose{margin-top:5px;font-size:13px}@media (max-width:900px){.statement-tab-content{padding-bottom:0}.statement-tab-content>div[role=tabpanel]{padding:18px 18px 44px}.problem-document{padding:22px 20px 52px}}@media (max-width:620px){.problem-document{padding-inline:16px}.problem-document-head h1{font-size:26px}.problem-meta{gap:8px 10px}.meta-item{padding-left:10px}.sample-grid{grid-template-columns:1fr}.sample-pane+.sample-pane{border-left:0;border-top:1px solid rgba(255,255,255,.055)}.problem-figure{border-radius:12px}}.adventure-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));grid-gap:20px;gap:20px;margin:24px 0}.coding-choice{padding-top:80px;max-width:1000px}.coding-option{display:block;text-decoration:none;padding:28px;transition:border-color .2s}.coding-option:hover{border-color:#e9b44c}.adventure-levels{list-style:none;padding:0;display:grid;grid-gap:12px;gap:12px}.adventure-levels li{padding:12px;border-bottom:1px solid #303039}.editor-suggestion-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:7px 12px;color:#a9acb8;background:#1e1e1e;border-bottom:1px solid #303039;font-size:11px;line-height:1.4}@media (max-width:620px){.editor-suggestion-bar{align-items:flex-start;flex-direction:column;gap:2px}}