@import url('https://fonts.googleapis.com/css2?family=Golos+Text:wght@400;450;500;550;600;650;700;750;800;900&family=IBM+Plex+Mono:wght@400;450;500;600&display=swap');
:root{color-scheme:dark;--bg:#101017;--panel:#191920;--panel2:#1e1e28;--border:#2b2b37;--text:#f0f0f6;--muted:#9595a9;--acid:#c4f777;--purple:#b394ff;--mono:'IBM Plex Mono',monospace;--sans:'Golos Text',system-ui,sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;line-height:1.5}button,input{font:inherit}button,a,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button{border:0;background:none}a{color:var(--purple);text-decoration:none}button,a,input,summary{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--acid)}button:disabled{cursor:default}button:hover{filter:brightness(1.12)}button{transition:background .15s,border-color .15s,transform .15s}button:active{transform:translateY(1px)}h1,h2,h3,p{margin:0}kbd,code,pre{font-family:var(--mono)}kbd{display:inline-flex;justify-content:center;align-items:center;min-width:29px;height:30px;padding:3px 8px;border:1px solid #42414f;border-bottom-width:3px;border-radius:5px;background:#272630;font:500 12px var(--mono);color:#e9e7f5;white-space:nowrap}code{color:var(--acid)}#app{display:flex;min-height:100vh}.sidebar{width:238px;flex-shrink:0;background:#14141c;border-right:1px solid var(--border);padding:34px 20px 24px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:10px;align-items:center;color:var(--text);font-weight:800;font-size:22px;letter-spacing:-1px;margin:0 10px 48px}.brand-icon{font:800 italic 34px var(--sans);color:var(--acid);letter-spacing:-7px;padding-right:7px;transform:skew(-8deg)}.brand-icon span{font-size:25px;color:var(--purple)}.brand-vim{font-weight:450}.brand small{display:block;font:8px var(--mono);letter-spacing:1.4px;color:var(--muted);margin-top:1px}.sidebar-label{font:9px var(--mono);letter-spacing:1.8px;color:#79798e;margin:0 14px 13px}.nav-item{width:100%;display:flex;align-items:center;text-align:left;gap:13px;font-weight:500;color:#adadbf;padding:13px 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.chapter-num{border-color:var(--acid);color:var(--acid);box-shadow:0 0 15px #c4f7770c}.side-bottom{margin-top:auto;padding:45px 14px 0}.live{font:9px var(--mono);letter-spacing:1.3px;color:var(--acid);display:flex;align-items:center;gap:7px}.live span,.status-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--acid)}.side-bottom p{font-size:13px;line-height:1.8;color:#a0a0b3;margin:15px 0 20px}.version{font:8px var(--mono);color:#68687c;letter-spacing:1px}.workspace{margin-left:238px;min-width:0;width:calc(100% - 238px)}.topbar{height:82px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 42px}.breadcrumb{font:10px var(--mono);letter-spacing:1.3px;color:#7e7e95}.breadcrumb span{margin:0 14px;color:#555568}.breadcrumb strong{color:#bcbcd0;font-weight:400}.profile{display:flex;gap:9px;align-items:center}.profile strong{font:12px 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var(--sans);color:#a78bda;letter-spacing:-18px;text-shadow:1px 1px #8063b7,2px 2px #8063b7,3px 3px #8063b7,4px 4px #5f448d,5px 5px #5f448d,6px 6px #5f448d,7px 7px #422f64,9px 9px #422f64,13px 13px 0 #211a32;opacity:.9}.vim-symbol b{position:absolute;left:74px;top:19px;font:900 italic 147px/.9 var(--sans);color:var(--acid);text-shadow:1px 1px #91b458,2px 2px #91b458,3px 3px #91b458,4px 4px #6c8a40,5px 5px #6c8a40,6px 6px #6c8a40,7px 7px #485f2c,10px 10px #2b3c1d,14px 14px 0 #172014}.vim-symbol i{position:absolute;bottom:10px;right:2px;color:var(--purple);font:900 78px var(--sans);transform:rotate(-8deg)}.orbital{position:absolute;width:330px;height:185px;border:1px solid #8f6bc32b;border-radius:50%;top:60px;left:65px;transform:rotate(-25deg)}.o-two{transform:rotate(30deg);height:220px;width:260px;left:105px;top:42px;border-style:dashed}.art-label{position:absolute;font:7px var(--mono);letter-spacing:2px;color:#8f80aa}.al-top{top:27px;left:205px}.al-bottom{bottom:28px;left:190px}.art-cross{position:absolute;font:20px var(--mono);color:#7d6999}.ac-one{top:60px;left:72px}.ac-two{bottom:70px;right:38px}.path-bar{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;border:1px solid var(--border);border-radius:7px;background:#191920;margin-bottom:20px;font-size:11px;gap:15px}.path-icon{color:var(--purple);font-size:18px;margin-right:10px}.path-bar>div:first-child{display:flex;align-items:center}.muted{color:var(--muted)}.path-extra{margin-left:10px}.path-progress{display:flex;align-items:center;gap:13px;font:10px var(--mono);color:#9696ac}.meter{width:115px;background:#34333f;height:4px;border-radius:5px;overflow:hidden}.meter i{display:block;background:var(--acid);height:100%;transition:width .3s}.path-progress>span:last-child{color:var(--acid)}.training-grid{display:grid;grid-template-columns:minmax(280px,.84fr) 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var(--mono);color:#8c879d}.editor{height:250px;overflow:auto;outline:none!important;position:relative;padding-top:7px;font:12px/27px var(--mono);cursor:text;transition:background .2s}.editor:focus{background:#14131c;box-shadow:inset 0 0 0 1px #b394ff50}.code-line{display:flex;min-height:27px;min-width:max-content;padding-right:20px}.current-line{background:#aaa0e008}.line-number{width:45px;flex-shrink:0;text-align:right;padding-right:17px;color:#545166;user-select:none;font-size:10px}.current-line .line-number{color:#ada1c5}.line-text{white-space:pre;color:#c4bed5}.comment-char{color:#767087}.cursor{display:inline-block;min-width:1ch;background:#a6d06b;color:#151c0d!important;box-shadow:0 0 8px #c4f77712}.editor:focus .cursor{background:var(--acid);box-shadow:0 0 8px #c4f77730}.editor-tildes{padding-left:31px;color:#363244;line-height:27px;pointer-events:none}.command-line{height:33px;white-space:pre;overflow:auto;padding:5px 15px;font:11px/23px 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1fr;gap:20px;margin-top:24px}.field-note{display:flex;gap:15px;padding:18px 19px;border:1px solid var(--border);border-radius:7px;background:linear-gradient(115deg,#241e32,#19181f)}.note-icon{color:var(--purple);font-size:26px;line-height:1.2}.field-note .eyebrow{font-size:8px;letter-spacing:1.4px}.field-note p{font-size:10px;color:#a5a0b5;line-height:1.9;margin-top:8px}.next-card{display:flex;text-align:left;align-items:center;justify-content:space-between;border:1px solid var(--border);border-radius:7px;padding:18px 20px;background:#19191f}.next-card small{display:block;font:7px var(--mono);letter-spacing:1.4px;color:#8b879d}.next-card strong{display:block;font-size:13px;font-weight:550;margin-top:8px}.next-card em{display:block;font-size:9px;font-style:normal;color:#8e8a9f;margin-top:3px}.next-card>b{display:grid;place-items:center;width:30px;height:30px;border:1px solid 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40px}.chapter-heading{display:flex;gap:15px;align-items:center;margin-bottom:18px}.chapter-heading>span{font:20px var(--mono);color:var(--purple)}.chapter-heading h2{font-size:19px}.chapter-heading p{font-size:11px;color:var(--muted);margin-top:4px}.chapter-heading>small{margin-left:auto;font:8px var(--mono);color:var(--purple);letter-spacing:1px}.mission-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.mission-card{padding:19px;text-align:left;background:var(--panel);border:1px solid var(--border);border-radius:7px;min-width:0}.mission-card.selected{border-color:#8d6dba}.mission-card.completed{border-color:#c4f77744}.mission-card>div:first-child{display:flex;justify-content:space-between;gap:5px;font:8px var(--mono);color:var(--purple)}.mission-card>div:first-child b{color:var(--acid);font-weight:400}.mission-card.completed>div:first-child>span{color:var(--acid)}.mission-card h3{font-size:16px;margin-top:17px}.mission-card 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span{font-size:11px;color:#a9a5b8}.reference-note{margin-top:25px;padding:25px}.reference-note h3{font-size:15px}.reference-note p{font-size:12px}.doc-links{display:flex;gap:20px;font-size:11px;margin-top:14px;flex-wrap:wrap}.tweak-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:22px;align-items:start}.tweak-list{display:grid;gap:10px}.tweak-card{position:relative;cursor:pointer;padding:20px;display:flex;gap:15px;align-items:center;justify-content:space-between;background:var(--panel);border:1px solid var(--border);border-radius:7px}.tweak-card h3{font-size:13px;font-weight:550}.tweak-card p{font-size:11px;color:var(--muted);line-height:1.8;margin-top:6px}.tweak-card input{position:absolute;right:25px;opacity:0;width:30px}.switch{width:31px;height:18px;background:#42404b;border-radius:12px;flex-shrink:0;position:relative}.switch:before{content:'';position:absolute;width:12px;height:12px;top:3px;left:3px;background:#ada8ba;border-radius:50%;transition:transform .15s}.tweak-card 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