@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/ibm-plex-sans-latin-400-normal-CDDApCn2.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-400-normal-CYLoc0-x.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/ibm-plex-sans-latin-500-normal-6ng42L7E.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-500-normal-BgVn5rGT.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/ibm-plex-sans-latin-600-normal-CuJfVYMP.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-600-normal-Cu4Hd6ag.woff)format("woff")}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/ibm-plex-sans-latin-700-normal-Bxkt5Cjx.woff2)format("woff2"),url(/assets/ibm-plex-sans-latin-700-normal-Bth3BMcD.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/ibm-plex-mono-latin-400-normal-DMJ8VG8y.woff2)format("woff2"),url(/assets/ibm-plex-mono-latin-400-normal-CvHOgSBP.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/assets/ibm-plex-mono-latin-500-normal-DSY6xOcd.woff2)format("woff2"),url(/assets/ibm-plex-mono-latin-500-normal-CB9ihrfo.woff)format("woff")}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:600;src:url(/assets/ibm-plex-mono-latin-600-normal-BgSNZQsw.woff2)format("woff2"),url(/assets/ibm-plex-mono-latin-600-normal-DWFSQ4vo.woff)format("woff")}.xterm{cursor:text;-webkit-user-select:none;user-select:none;position:relative}.xterm.focus,.xterm:focus{outline:none}.xterm .xterm-helpers{z-index:5;position:absolute;top:0}.xterm .xterm-helper-textarea{opacity:0;z-index:-5;white-space:nowrap;resize:none;border:0;width:0;height:0;margin:0;padding:0;position:absolute;top:0;left:-9999em;overflow:hidden}.xterm .composition-view{color:#fff;white-space:nowrap;z-index:1;background:#000;display:none;position:absolute}.xterm .composition-view.active{display:block}.xterm .xterm-viewport{cursor:default;background-color:#000;position:absolute;inset:0;overflow-y:scroll}.xterm .xterm-screen{position:relative}.xterm .xterm-screen canvas{position:absolute;top:0;left:0}.xterm-char-measure-element{visibility:hidden;line-height:normal;display:inline-block;position:absolute;top:0;left:-9999em}.xterm.enable-mouse-events{cursor:default}.xterm.xterm-cursor-pointer,.xterm .xterm-cursor-pointer{cursor:pointer}.xterm.column-select.focus{cursor:crosshair}.xterm .xterm-accessibility:not(.debug),.xterm .xterm-message{z-index:10;color:#0000;pointer-events:none;position:absolute;inset:0}.xterm .xterm-accessibility-tree:not(.debug) ::selection{color:#0000}.xterm .xterm-accessibility-tree{-webkit-user-select:text;user-select:text;white-space:pre;font-family:monospace}.xterm .xterm-accessibility-tree>div{transform-origin:0;width:fit-content}.xterm .live-region{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.xterm-dim{opacity:1!important}.xterm-underline-1{text-decoration:underline}.xterm-underline-2{-webkit-text-decoration:underline double;text-decoration:underline double}.xterm-underline-3{-webkit-text-decoration:underline wavy;text-decoration:underline wavy}.xterm-underline-4{-webkit-text-decoration:underline dotted;text-decoration:underline dotted}.xterm-underline-5{-webkit-text-decoration:underline dashed;text-decoration:underline dashed}.xterm-overline{text-decoration:overline}.xterm-overline.xterm-underline-1{text-decoration:underline overline}.xterm-overline.xterm-underline-2{-webkit-text-decoration:overline double underline;text-decoration:overline double underline}.xterm-overline.xterm-underline-3{-webkit-text-decoration:overline wavy underline;text-decoration:overline wavy underline}.xterm-overline.xterm-underline-4{-webkit-text-decoration:overline dotted underline;text-decoration:overline dotted underline}.xterm-overline.xterm-underline-5{-webkit-text-decoration:overline dashed underline;text-decoration:overline dashed underline}.xterm-strikethrough{text-decoration:line-through}.xterm-screen .xterm-decoration-container .xterm-decoration{z-index:6;position:absolute}.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer{z-index:7}.xterm-decoration-overview-ruler{z-index:8;pointer-events:none;position:absolute;top:0;right:0}.xterm-decoration-top{z-index:2;position:relative}.xterm .xterm-scrollable-element>.scrollbar{cursor:default}.xterm .xterm-scrollable-element>.scrollbar>.scra{cursor:pointer;font-size:11px!important}.xterm .xterm-scrollable-element>.visible{opacity:1;z-index:11;background:0 0;transition:opacity .1s linear}.xterm .xterm-scrollable-element>.invisible{opacity:0;pointer-events:none}.xterm .xterm-scrollable-element>.invisible.fade{transition:opacity .8s linear}.xterm .xterm-scrollable-element>.shadow{display:none;position:absolute}.xterm .xterm-scrollable-element>.shadow.top{width:100%;height:3px;box-shadow:var(--vscode-scrollbar-shadow,#000) 0 6px 6px -6px inset;display:block;top:0;left:3px}.xterm .xterm-scrollable-element>.shadow.left{width:3px;height:100%;box-shadow:var(--vscode-scrollbar-shadow,#000) 6px 0 6px -6px inset;display:block;top:3px;left:0}.xterm .xterm-scrollable-element>.shadow.top-left-corner{width:3px;height:3px;display:block;top:0;left:0}.xterm .xterm-scrollable-element>.shadow.top.left{box-shadow:var(--vscode-scrollbar-shadow,#000) 6px 0 6px -6px inset}:root{--bg:#f3f1ec;--surface:#fffefb;--surface-2:#f8f6f1;--surface-3:#ece9e1;--text:#1a1916;--text-2:#4f4b43;--text-3:#857f73;--border:#e2ded4;--border-strong:#cbc5b8;--ink:#1a1916;--ink-hover:#000;--ink-text:#fffefb;--accent:#d9480f;--accent-hover:#c2410c;--accent-text:#fff;--accent-soft:#fbe9dd;--success:#2b8a3e;--success-soft:#e5f1e3;--warning:#a85d00;--warning-soft:#f8ecd8;--danger:#c92a2a;--danger-soft:#f9e3e1;--led-off:#dcd7cb;--link-up:#2f9e44;--link-down:#e03131;--canvas:#faf8f4;--grid:#ddd8cc;--cable:#2d2b27;--console:#161512;--console-bar:#1f1d19;--console-line:#2c2a25;--console-text:#b9b2a3;--radius:6px;--radius-sm:4px;--shadow-float:0 10px 30px #1a191624, 0 1px 3px #1a19161a;--font:"IBM Plex Sans", "Segoe UI", system-ui, sans-serif;--mono:"IBM Plex Mono", Consolas, "Courier New", monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root{--bg:#12110f;--surface:#1a1916;--surface-2:#201f1b;--surface-3:#2a2823;--text:#eeeae1;--text-2:#b8b2a5;--text-3:#8a8478;--border:#2d2b26;--border-strong:#3f3c35;--ink:#eeeae1;--ink-hover:#fff;--ink-text:#12110f;--accent:#f76707;--accent-hover:#ff8a3d;--accent-text:#12110f;--accent-soft:#3a2212;--success:#51cf66;--success-soft:#16291a;--warning:#f59f00;--warning-soft:#2e2410;--danger:#ff6b6b;--danger-soft:#331a19;--led-off:#34312b;--canvas:#161512;--grid:#2b2924;--cable:#a8a295;--console:#0f0e0c;--console-bar:#191815;--console-line:#26241f;--shadow-float:0 12px 36px #00000080;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased;margin:0}a{color:inherit;text-decoration:none}h1,h2,h3{margin:0;font-weight:600;line-height:1.2}h1{letter-spacing:-.015em;font-size:1.75rem}h2{font-size:1.05rem}p{margin:0}code,.mono{font-family:var(--mono)}code{background:var(--surface-3);border-radius:3px;padding:.05em .35em;font-size:.86em}button{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.muted{color:var(--text-3)}.small{font-size:.82rem}.strong{font-weight:600}.ok{color:var(--success);font-weight:500}.bad{color:var(--danger);font-weight:500}.error{color:var(--danger);background:var(--danger-soft);border-left:3px solid var(--danger);padding:.5rem .75rem;font-size:.9rem}.center{text-align:center;place-content:center;gap:.75rem;min-height:60vh;display:grid}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.label-caps{font:500 .7rem/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);margin:0}.label-caps.accent{color:var(--accent)}.panel,.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.btn{border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--surface);height:36px;color:var(--text);cursor:pointer;white-space:nowrap;justify-content:center;align-items:center;gap:.45rem;padding:0 .9rem;font-weight:500;transition:background .12s,border-color .12s;display:inline-flex}.btn:hover{border-color:var(--text-3)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--ink);border-color:var(--ink);color:var(--ink-text)}.btn.primary:hover:not(:disabled){background:var(--ink-hover)}.btn.accent{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:600}.btn.accent:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn.ghost{color:var(--text-2);background:0 0;border-color:#0000}.btn.ghost:hover{background:var(--surface-3);color:var(--text)}.btn.danger{color:var(--danger);background:0 0}.btn.danger:hover{background:var(--danger-soft);border-color:var(--danger)}.btn.small{height:30px;padding:0 .65rem;font-size:.85rem}.btn.block{width:100%}.icon-btn{border-radius:var(--radius-sm);width:30px;height:30px;color:var(--text-2);cursor:pointer;background:0 0;border:0;flex:none;place-items:center;display:inline-grid}.icon-btn:hover:not(:disabled){background:var(--surface-3);color:var(--text)}.icon-btn:disabled{opacity:.4}.tag{border:1px solid var(--border-strong);height:20px;font:500 .68rem var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--text-2);white-space:nowrap;border-radius:3px;align-items:center;padding:0 .4rem;display:inline-flex}.tag.beginner{color:var(--success);border-color:color-mix(in srgb, var(--success) 45%, transparent)}.tag.intermediate{color:var(--warning);border-color:color-mix(in srgb, var(--warning) 45%, transparent)}.tag.advanced{color:var(--danger);border-color:color-mix(in srgb, var(--danger) 45%, transparent)}.leds{flex-wrap:wrap;gap:3px;display:inline-flex}.leds i{background:var(--led-off);border-radius:2px;width:9px;height:9px}.leds i.on{background:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent)}.tabs{border-bottom:1px solid var(--border);gap:1.1rem;display:flex}.tabs button{color:var(--text-3);cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:.4rem;margin-bottom:-1px;padding:.55rem 0 .6rem;font-weight:500;display:inline-flex}.tabs button:hover{color:var(--text)}.tabs button[aria-selected=true]{color:var(--text);border-bottom-color:var(--accent)}.count{color:var(--text-3);font-size:.72rem}.dot{border-radius:2px;width:8px;height:8px;display:inline-block}.dot.up{background:var(--link-up)}.dot.down{background:var(--link-down)}.done-mark{color:var(--success);align-items:center;gap:.25rem;font-size:.85rem;font-weight:600;display:inline-flex}.xp-text{color:var(--accent);font-size:.85rem;font-weight:600}.note{border-left:2px solid var(--border-strong);color:var(--text-2);padding:.15rem 0 .15rem .85rem;font-size:.88rem}.note ol,.note ul{gap:.25rem;margin:.4rem 0;padding-left:1.1rem;display:grid}.hint{color:var(--text-3);font-size:.8rem;font-weight:400}.wordmark{font:600 1.05rem var(--mono);color:var(--text);align-items:center;gap:.55rem;display:inline-flex}.wordmark .mark{background:var(--ink);width:30px;height:30px;color:var(--ink-text);font:600 .85rem var(--mono);letter-spacing:-.05em;border-radius:5px;flex:none;justify-content:center;align-items:center;display:inline-flex}.wordmark .cursor{color:var(--accent)}.shell{grid-template-columns:224px 1fr;height:100%;display:grid}.shell.compact{grid-template-columns:60px 1fr}.sidebar{background:var(--bg);border-right:1px solid var(--border);flex-direction:column;gap:.15rem;min-height:0;padding:1rem .7rem;display:flex}.brand{padding:0 .3rem 1.25rem}.sidebar nav{gap:1px;display:grid}.nav-item{border-radius:var(--radius-sm);height:38px;color:var(--text-2);cursor:pointer;text-align:left;background:0 0;border:0;align-items:center;gap:.7rem;width:100%;padding:0 .65rem;font-weight:500;display:flex}.nav-item:hover{background:var(--surface-3);color:var(--text)}.nav-item[aria-current=page]{background:var(--surface);color:var(--text);box-shadow:inset 2px 0 0 var(--accent), 0 0 0 1px var(--border)}.sidebar-foot{border-top:1px solid var(--border);gap:.3rem;margin-top:auto;padding-top:.75rem;display:grid}.user{align-items:center;gap:.6rem;padding:.3rem .3rem .4rem;display:flex}.user .label{flex:1;gap:.2rem;min-width:0;display:grid}.user-name{white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:600;overflow:hidden}.user-meta{color:var(--text-3);font-size:.72rem}.user .leds i{width:7px;height:7px}.avatar{background:var(--surface-3);border:1px solid var(--border-strong);width:32px;height:32px;color:var(--text);font:600 .75rem var(--mono);border-radius:5px;flex:none;place-items:center;display:grid}.shell.compact .sidebar{align-items:center;padding:1rem .55rem}.shell.compact .label,.shell.compact .wordmark .word{display:none}.shell.compact .brand{padding:0 0 1.25rem}.shell.compact .nav-item{justify-content:center;width:40px;padding:0}.shell.compact .user{padding:0}.main{min-width:0;min-height:0;overflow:auto}.page{gap:1.5rem;max-width:1040px;margin:0 auto;padding:2.25rem 1.75rem 4rem;display:grid}.page-head{gap:.35rem;display:grid}.status-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);display:flex}.stat{align-content:start;gap:.3rem;min-width:150px;padding:1rem 1.25rem;display:grid}.stat+.stat{border-left:1px solid var(--border)}.stat.grow{flex:1}.stat-big{letter-spacing:-.02em;font-size:2rem;font-weight:500;line-height:1.1}.stat-big small{color:var(--text-3);font-size:1rem}.stat-sub{color:var(--text-2);font-size:.85rem}.stat .leds{margin:.55rem 0 .2rem}a.stat-link:hover{background:var(--surface-2)}a.stat-link:hover .label-caps{color:var(--accent)}.stat-big.saver{font-size:1.5rem;line-height:1.5}.week-strip{gap:.4rem;margin:.35rem 0 .1rem;padding:0;list-style:none;display:flex}.week-strip li{border-radius:var(--radius-sm);color:var(--text-3);border:1px solid #0000;justify-items:center;gap:.25rem;padding:.3rem .35rem;font-size:.72rem;display:grid}.week-strip li.today{border-color:var(--border-strong);color:var(--text)}.week-strip li.later{opacity:.55}.week-strip i{background:var(--led-off);border-radius:3px;width:14px;height:14px}.week-strip i.on{background:var(--accent);box-shadow:0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent)}.goal-picker{gap:.75rem;min-width:0;margin:0;padding:1rem 1.25rem;display:grid}.goal-picker legend{float:left;padding:0;font-weight:500}.goal-choices{flex-wrap:wrap;gap:.5rem;display:flex}.goal-picker p{margin:0}.next-up{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius);justify-content:space-between;align-items:center;gap:1.5rem;padding:1.15rem 1.25rem;display:flex}.next-up h2{margin:.2rem 0 .25rem;font-size:1.2rem}.next-up:hover .btn.accent{background:var(--accent-hover)}.section-head{justify-content:space-between;align-items:baseline;margin-bottom:.6rem;display:flex}.lab-table{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin:0;padding:0;list-style:none}.lab-table li+li{border-top:1px solid var(--border)}.lab-line{grid-template-columns:2.25rem 1fr 11rem 6.5rem 4.5rem 3.5rem;align-items:center;gap:1rem;padding:.95rem 1.25rem;transition:background .12s;display:grid}.lab-line:hover{background:var(--surface-2)}.lab-idx{color:var(--text-3);font-size:.9rem}.lab-line.done .lab-idx{color:var(--success)}.lab-name{gap:.1rem;min-width:0;display:grid}.lab-name .muted{font-size:.86rem}.lab-domain{color:var(--text-2);font-size:.82rem}.lab-xp{text-align:right;color:var(--text-2);font-size:.85rem}.lab-line.done .lab-xp{color:var(--success)}.lab-state{color:var(--text-3);justify-content:flex-end;display:flex}.lab-line:hover .lab-state{color:var(--accent)}.sandbox-line{border:1px dashed var(--border-strong);border-radius:var(--radius);color:var(--text-2);align-items:center;gap:1.1rem;padding:1rem 1.25rem;display:flex}.sandbox-line:hover{border-color:var(--accent);color:var(--text)}.sandbox-line>span:nth-child(2){flex:1;gap:.1rem;display:grid}.sandbox-line strong{color:var(--text)}.sandbox-icons{gap:.1rem;display:flex}.line-icon{width:44px;height:36px;color:var(--accent);place-items:center;display:grid}.trainer-card{background:var(--surface);border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:var(--radius);gap:1rem;padding:1.25rem;display:grid}.trainer-top{flex-wrap:wrap;align-items:center;gap:.9rem;display:flex}.trainer-top .grow{flex:1}.trainer-clock{font-family:var(--mono);font-variant-numeric:tabular-nums;align-items:center;gap:.35rem;font-size:1.1rem;display:inline-flex}.trainer-clock.over{color:var(--warning)}.trainer-prompt{font-family:var(--mono);letter-spacing:-.01em;overflow-wrap:anywhere;margin:.5rem 0 0;font-size:1.45rem;font-weight:500}.trainer-form{flex-wrap:wrap;gap:.6rem;display:flex}.trainer-form input{min-width:0;height:46px;font-family:var(--mono);flex:14rem;font-size:1.15rem}.trainer-form .btn{height:46px}.trainer-feedback{min-height:1.6rem;margin:0}.trainer-feedback .bad,.answer-mark{align-items:center;gap:.35rem;display:inline-flex}.back-link{color:var(--text-2);align-items:center;gap:.3rem;display:inline-flex}.back-link:hover{color:var(--accent)}.stat-action{align-content:center}.lab-line.step-line{grid-template-columns:2.25rem 1fr 4.5rem 3.5rem}.module-leds{display:flex}.lesson{grid-template-columns:13rem minmax(0,1fr);align-items:start;gap:2.5rem;display:grid}.lesson-toc{gap:.5rem;display:grid;position:sticky;top:1.5rem}.lesson-toc ol{border-left:1px solid var(--border);gap:.15rem;margin:0;padding:0;list-style:none;display:grid}.lesson-toc button{width:100%;color:var(--text-2);font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-left:2px solid #0000;margin-left:-1px;padding:.3rem .75rem;font-size:.86rem;display:block}.lesson-toc button:hover{color:var(--text);border-left-color:var(--accent)}.lesson-body{gap:2.5rem;max-width:46rem;display:grid}.lesson-section{gap:.75rem;scroll-margin-top:1rem;display:grid}.lesson-section h2{margin:0;font-size:1.35rem}.lesson-end{justify-items:start;gap:.9rem;padding:1.25rem;display:grid}.lesson-end p{margin:0}.markdown{gap:.85rem;line-height:1.6;display:grid}.markdown p,.markdown ul,.markdown ol{margin:0}.markdown ul,.markdown ol{gap:.3rem;padding-left:1.3rem;display:grid}.markdown h3{margin:.5rem 0 0;font-size:1rem}.code-block{background:var(--console);color:var(--console-text);border-radius:var(--radius-sm);font-family:var(--mono);margin:0;padding:.85rem 1rem;font-size:.88rem;line-height:1.5;overflow-x:auto}.code-block code{color:inherit;background:0 0;padding:0}.tip{border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:.7rem .9rem}.lesson-table{border-collapse:collapse;font-size:.88rem}.lesson-table th,.lesson-table td{border:1px solid var(--border);text-align:left;white-space:nowrap;padding:.4rem .75rem}.lesson-table thead th{background:var(--surface-2);font-weight:600}.explorer{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);gap:.9rem;margin:0;padding:1rem 1.1rem;display:grid}.explorer-inputs{flex-wrap:wrap;align-items:end;gap:1rem;display:flex}.explorer-inputs label{gap:.35rem;display:grid}.explorer-inputs .grow{flex:12rem}.explorer-inputs input[type=range]{height:auto;accent-color:var(--accent);border:0;padding:0}.explorer-inputs input:not([type=range]){font-family:var(--mono);width:11.5rem}.explorer-inputs input[aria-invalid=true]{border-color:var(--danger)}.bits-row{gap:.3rem;display:grid}.bits{max-width:34rem;font-family:var(--mono);grid-template-columns:repeat(4,minmax(0,1fr));gap:.5rem;display:grid}.octet{grid-template-columns:repeat(8,minmax(0,1fr));row-gap:.1rem;display:grid}.octet i,.bits-legend i{text-align:center;font-size:.9rem;font-style:normal}.octet small{text-align:center;color:var(--text-3);grid-column:1/-1;font-size:.75rem}.octet .net,.bits-legend .net{background:var(--accent-soft);color:var(--accent);font-weight:600}.octet .host,.bits-legend .host{color:var(--text-3)}.bits-legend{align-items:center;gap:.4rem;margin:0;display:flex}.bits-legend i{border:1px solid var(--border-strong);width:.9rem;height:.9rem;display:inline-block}.bits-legend i+*{margin-right:.75rem}.explorer-facts{grid-template-columns:repeat(auto-fill,minmax(11rem,1fr));gap:.6rem 1rem;margin:0;display:grid}.explorer-facts dt{color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;font-size:.75rem}.explorer-facts dd{margin:.1rem 0 0}.quiz-intro{gap:1rem;display:grid}.quiz{gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.quiz>li{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);gap:.7rem;padding:1rem 1.15rem;display:grid}.quiz>li.right{border-left:3px solid var(--success)}.quiz>li.wrong{border-left:3px solid var(--danger)}.quiz-prompt{margin:0;font-weight:500}.choices{gap:.35rem;display:grid}.choice{border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;align-items:center;gap:.6rem;padding:.45rem .6rem;display:flex}.choice:hover{border-color:var(--border-strong)}.choice:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}.choice input{height:auto;accent-color:var(--accent)}.quiz-input{max-width:16rem;font-family:var(--mono)}.quiz-feedback{gap:.3rem;font-size:.9rem;display:grid}.quiz-actions{flex-wrap:wrap;align-items:center;gap:.9rem;margin-top:1.25rem;display:flex}@media (width<=900px){.lesson{grid-template-columns:1fr}.lesson-toc{display:none}}@media (width<=600px){.lab-line.step-line{grid-template-columns:2rem 1fr 2.5rem}.module-leds{display:none}.bits{gap:.3rem}.octet i{font-size:.78rem}}.device-glyph{flex:none;display:block}.table-wrap{overflow-x:auto}.board{border-collapse:collapse;width:100%}.board th,.board td{text-align:left;border-bottom:1px solid var(--border);padding:.7rem 1.1rem}.board th{font:500 .7rem var(--mono);text-transform:uppercase;letter-spacing:.1em;color:var(--text-3)}.board .num{text-align:right}.board .place{width:4.5rem;color:var(--text-3)}.board .place.top{color:var(--accent);font-weight:600}.board tr.me td{background:var(--accent-soft)}.board tr.me td:first-child{box-shadow:inset 3px 0 0 var(--accent)}.board tbody tr:last-child td{border-bottom:0}.empty-state{text-align:center;color:var(--text-3);padding:2rem}.auth{grid-template-columns:1.2fr 1fr;align-items:center;gap:4.5rem;max-width:1080px;min-height:100%;margin:0 auto;padding:3rem 1.75rem;display:grid}.auth-hero{justify-items:start;gap:1.25rem;display:grid}.auth-hero h1{letter-spacing:-.025em;max-width:30rem;font-size:2.35rem;line-height:1.12}.lead{color:var(--text-2);max-width:32rem;font-size:1.05rem}.hero-cli{background:var(--console);color:#e6e1d6;border-radius:var(--radius);width:100%;font:.86rem/1.7 var(--mono);margin:0;padding:1rem 1.15rem;overflow-x:auto}.hero-cli .p{color:#8a8478}.hero-cli .c{color:#69db7c}.features{color:var(--text-2);gap:.45rem;margin:0;padding:0;font-size:.92rem;list-style:none;display:grid}.features li:before{content:"— ";color:var(--accent);font-family:var(--mono)}.auth-card{gap:1.1rem;padding:1.6rem;display:grid}.auth-card label{gap:.35rem;font-size:.88rem;font-weight:500;display:grid}input,textarea{font:inherit;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface);height:38px;color:var(--text);padding:0 .7rem}textarea{resize:vertical;height:auto;padding:.5rem .7rem}input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);outline:none}input:disabled{background:var(--surface-2);color:var(--text-3)}.ws{grid-template-rows:auto 1fr;height:100%;min-height:0;display:grid}.ws-header{background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:.85rem;min-width:0;height:56px;padding:0 1rem;display:flex}.ws-title{flex:1;align-items:baseline;gap:.9rem;min-width:0;display:flex}.ws-title h1{white-space:nowrap;text-overflow:ellipsis;font-size:1.05rem;overflow:hidden}.ws-title .meta{color:var(--text-3);white-space:nowrap;align-items:center;gap:.7rem;font-size:.82rem;display:inline-flex}.ws-progress{color:var(--text-2);align-items:center;gap:.55rem;display:flex}.save-state{font:500 .75rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);align-items:center;gap:.4rem;display:inline-flex}.save-state .led{background:var(--led-off);border-radius:2px;width:8px;height:8px}.save-state.saved .led{background:var(--link-up)}.save-state.saving .led{background:var(--warning)}.save-state.error .led{background:var(--link-down)}.ws-body{grid-template-columns:336px 1fr;min-height:0;display:grid}.ws-panel{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;gap:.9rem;min-height:0;padding:.6rem 1.1rem 1.1rem;display:flex;overflow:auto}.panel-body{align-content:start;gap:1.1rem;padding-top:.4rem;display:grid}.briefing{color:var(--text-2);gap:.65rem;font-size:.93rem;display:grid}.briefing strong{color:var(--text)}.briefing ul{gap:.25rem;margin:0;padding-left:1.1rem;display:grid}.objectives{margin:0;padding:0;list-style:none;display:grid}.objectives li{border-bottom:1px solid var(--border);align-items:flex-start;gap:.65rem;padding:.5rem 0;font-size:.92rem;display:flex}.objectives li:last-child{border-bottom:0}.objectives .check{border:1.5px solid var(--border-strong);border-radius:3px;flex:none;place-items:center;width:17px;height:17px;margin-top:2px;transition:all .15s;display:grid}.objectives li.met .check{background:var(--success);border-color:var(--success);color:#fff}.objectives li.met>span:nth-child(2){color:var(--text-3)}.objectives.steps li.current{background:var(--accent-soft);border-radius:var(--radius-sm);margin:0 -.6rem;padding:.6rem;font-weight:500}.objectives.steps li.current .check{border-color:var(--accent);color:var(--accent)}.objectives.steps .check .mono{font-size:.68rem;line-height:1}.step-text{gap:.3rem;display:grid}.objectives.steps li.met .step-text>span:first-child{color:var(--text-3);text-decoration:line-through;-webkit-text-decoration-color:var(--border-strong);text-decoration-color:var(--border-strong)}.objectives.steps .why{color:var(--text-2);font-size:.86rem;line-height:1.5}.modal-backdrop{z-index:10000;background:#12110f8c;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:min(30rem,100%);max-height:calc(100vh - 32px);box-shadow:var(--shadow-float);gap:1rem;padding:1.25rem;display:grid;overflow-y:auto}.modal-head{align-items:flex-start;gap:.8rem;display:flex}.modal-head.pass{color:var(--success)}.modal-head.fail{color:var(--warning)}.modal-head h2{color:var(--text);margin:0;font-size:1.2rem}.modal-head p{color:var(--text-2);margin:.25rem 0 0}.result-list{border:1px solid var(--border);border-radius:var(--radius-sm);max-height:16rem;padding:0 .25rem;overflow-y:auto}.result-list li{padding:.45rem .4rem}.objectives li.missed .check{background:var(--danger-soft);border-color:var(--danger);color:var(--danger)}.modal-actions{flex-wrap:wrap;gap:.6rem;display:flex}.btn.accent.ready{box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 35%, transparent);animation:1.6s ease-in-out infinite ready-pulse}@keyframes ready-pulse{50%{box-shadow:0 0 0 6px color-mix(in srgb, var(--accent) 12%, transparent)}}@media (prefers-reduced-motion:reduce){.btn.accent.ready{animation:none}}.hints{gap:.6rem;margin:0;padding-left:1.2rem;font-size:.92rem;display:grid}.result{border-radius:var(--radius-sm);align-items:flex-start;gap:.6rem;padding:.7rem .75rem;font-size:.9rem;display:flex}.result>div{color:var(--text);flex:1}.result.pass{background:var(--success-soft);color:var(--success)}.result.fail{background:var(--warning-soft);color:var(--warning)}.palette-group{gap:.45rem;display:grid}.palette{gap:2px;display:grid}.palette-item{border-radius:var(--radius-sm);text-align:left;cursor:grab;background:0 0;border:1px solid #0000;align-items:center;gap:.7rem;padding:.35rem .5rem;display:flex}.palette-item:hover{background:var(--surface-2);border-color:var(--border)}.palette-text{min-width:0;display:grid}.palette-name{font-size:.9rem;font-weight:500}.palette-desc{color:var(--text-3);white-space:nowrap;text-overflow:ellipsis;font-size:.78rem;overflow:hidden}.stage{background:var(--canvas);flex-direction:column;min-width:0;min-height:0;display:flex;position:relative}.stage.focus{background:var(--bg)}.canvas-area{flex:1;min-height:160px;position:relative;overflow:hidden}.canvas{background:var(--canvas);touch-action:none;-webkit-user-select:none;user-select:none;cursor:grab;width:100%;height:100%;display:block}.canvas:active{cursor:grabbing}.canvas.cable-mode,.canvas.cable-mode .node{cursor:crosshair}.grid-dot{fill:var(--grid)}.cable{stroke:var(--cable);stroke-width:1.75px}.cable-hit{stroke:#0000;stroke-width:14px;cursor:pointer}.link.selected .cable{stroke:var(--accent);stroke-width:3px}.light.up{fill:var(--link-up)}.light.down{fill:var(--link-down)}.port-label{font:500 11px var(--mono);fill:var(--text-3);paint-order:stroke;stroke:var(--canvas);stroke-width:4px}.node{cursor:pointer;outline:none}.halo{fill:#0000;stroke:#0000;stroke-width:1.5px}.node:hover .halo{fill:color-mix(in srgb, var(--text) 4%, transparent)}.node.selected .halo,.node:focus-visible .halo{fill:color-mix(in srgb, var(--accent) 7%, transparent);stroke:var(--accent);stroke-dasharray:4 3}.node.cable-from .halo{fill:color-mix(in srgb, var(--link-up) 10%, transparent);stroke:var(--link-up)}.node-name{font:600 13px var(--font);fill:var(--text);paint-order:stroke;stroke:var(--canvas);stroke-width:4px}.node-sub{font:400 11px var(--mono);fill:var(--text-3);paint-order:stroke;stroke:var(--canvas);stroke-width:4px}.canvas-empty{font:400 14px var(--mono);fill:var(--text-3)}.canvas-tools{background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius-sm);display:flex;position:absolute;top:12px;left:12px}.tool{min-width:32px;height:32px;color:var(--text-2);cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;gap:.4rem;padding:0 .45rem;font-size:.84rem;font-weight:500;display:inline-flex}.tool+.tool{border-left:1px solid var(--border)}.tool:hover{background:var(--surface-2);color:var(--text)}.tool.on{color:var(--accent);background:var(--accent-soft)}.tool.wide{padding:0 .7rem}.canvas-legend{font:400 .74rem var(--mono);color:var(--text-3);align-items:center;gap:1rem;display:flex;position:absolute;top:18px;right:14px}.tri{vertical-align:0;border-bottom:8px solid;border-left:4.5px solid #0000;border-right:4.5px solid #0000;width:0;height:0;margin-right:.15rem;display:inline-block}.tri.up{color:var(--link-up)}.tri.down{color:var(--link-down)}.inspector{width:320px;max-height:calc(100% - 70px);box-shadow:var(--shadow-float);gap:.75rem;padding:.85rem;display:grid;position:absolute;bottom:12px;left:12px;overflow:auto}.inspector-head{align-items:center;gap:.65rem;display:flex}.inspector-head>div{flex:1;min-width:0}.ports{border-collapse:collapse;width:100%;font-size:.82rem}.ports th{text-align:left;font:500 .66rem var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);padding:0 .4rem .35rem}.ports td{border-top:1px solid var(--border);white-space:nowrap;padding:.32rem .4rem}.ports td:first-child{width:14px}.ports tr.shut td{color:var(--text-3)}.ports-wrap{gap:.4rem;display:grid}.facts{grid-template-columns:auto 1fr;gap:.35rem 1rem;margin:0;font-size:.86rem;display:grid}.facts dt{font:500 .7rem/1.9 var(--mono);text-transform:uppercase;letter-spacing:.08em;color:var(--text-3)}.facts dd{align-items:center;gap:.4rem;margin:0;display:flex}.inspector-actions{gap:.5rem;display:flex}.port-menu{z-index:10;width:240px;max-height:320px;box-shadow:var(--shadow-float);padding:.3rem;display:grid;position:absolute;overflow:auto}.port-menu-head{justify-content:space-between;align-items:center;padding:.2rem .4rem .4rem;display:flex}.port-menu button[role=menuitem]{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:3px;justify-content:space-between;align-items:center;padding:.38rem .5rem;font-size:.84rem;display:flex}.port-menu button[role=menuitem]:hover:not(:disabled){background:var(--accent-soft);color:var(--accent)}.port-menu button:disabled{color:var(--text-3);cursor:not-allowed}.toast{z-index:12;border-radius:var(--radius-sm);max-width:min(520px,100% - 24px);box-shadow:var(--shadow-float);background:var(--ink);color:var(--ink-text);padding:.5rem .9rem;font-size:.86rem;font-weight:500;position:absolute;top:12px;left:50%;transform:translate(-50%)}.toast.bad{background:var(--danger);color:#fff}.dock{background:var(--console);border-top:1px solid var(--border);flex-direction:column;flex:none;display:flex;position:relative}.dock-resizer{cursor:ns-resize;z-index:2;height:8px;position:absolute;top:-4px;left:0;right:0}.dock-resizer:hover{background:color-mix(in srgb, var(--accent) 45%, transparent)}.dock-bar{background:var(--console-bar);border-bottom:1px solid var(--console-line);height:40px;color:var(--console-text);align-items:center;gap:.25rem;padding:0 .5rem;display:flex}.dock-bar .icon-btn{color:#8a8478}.dock-bar .icon-btn:hover{background:var(--console-line);color:#eeeae1}.dock-tabs{flex:1;min-width:0;height:100%;display:flex;overflow-x:auto}.dock-tabs button{color:#8a8478;height:100%;font:500 .82rem var(--mono);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-bottom:2px solid #0000;align-items:center;gap:.45rem;padding:0 .85rem 0 .5rem;display:inline-flex}.dock-tabs button:hover{color:#eeeae1}.dock-tabs button[aria-selected=true]{color:#fff;border-bottom-color:var(--accent);background:var(--console)}.dock-tabs .muted{color:#6f6a5f;align-self:center;padding:0 .5rem}.dock-tip{color:#6f6a5f;white-space:nowrap;font-family:var(--mono);padding:0 .5rem;font-size:.74rem}.dock-body{flex:1;min-height:0;padding:.4rem 0 0 .65rem}.dock-body[hidden]{display:none}.console-host{height:100%}.console-host[hidden]{display:none}.pc-window{z-index:8;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);width:min(840px,100% - 24px);max-height:calc(100% - 16px);box-shadow:var(--shadow-float);flex-direction:column;display:flex;position:absolute;overflow:auto}.pc-window.printer{width:min(460px,100% - 24px)}.pc-titlebar{border-bottom:1px solid var(--border);cursor:move;-webkit-user-select:none;user-select:none;align-items:center;gap:.6rem;padding:.4rem .5rem .4rem .75rem;display:flex}.pc-titlebar .mono{flex:1}.printer-panel{padding:.25rem .5rem .5rem}.monitor{background:var(--surface-2);flex-direction:column;align-items:center;padding:14px 18px 0;display:flex}.screen{aspect-ratio:16/10;width:100%;max-height:calc(100vh - 240px);font-family:var(--font);background:#23211d;border:10px solid #23211d;border-radius:8px;flex-direction:column;font-size:13px;display:flex;position:relative;overflow:hidden}.pc-window.laptop .screen{border-width:8px;border-radius:8px 8px 2px 2px}.stand{clip-path:polygon(30% 0,70% 0,82% 100%,18% 100%);background:linear-gradient(#3a3731,#2a2823);width:120px;height:22px}.stand:after{content:""}.monitor:has(.stand):after{content:"";background:#2a2823;border-radius:3px 3px 0 0;width:200px;height:6px;margin-bottom:14px}.laptop-deck{background:linear-gradient(#cfcbc2,#a9a49a);border-radius:0 0 10px 10px;width:calc(100% + 24px);height:16px;margin-bottom:14px;position:relative}.laptop-deck:after{content:"";background:#8f8a80;border-radius:0 0 4px 4px;height:5px;position:absolute;top:0;left:44%;right:44%}.wallpaper{color:#fff;background-color:#2e5a64;background-image:radial-gradient(#ffffff12 1px,#0000 1px);background-size:18px 18px;flex:1;min-height:0;position:relative;overflow:hidden}.wallpaper-mark{font:600 1.6rem var(--mono);color:#ffffff1f;pointer-events:none;position:absolute;bottom:10px;right:18px}.desk-icons{gap:6px;display:grid;position:absolute;top:10px;left:10px}.desk-icon{color:#fff;cursor:default;background:0 0;border:1px solid #0000;border-radius:3px;justify-items:center;gap:4px;width:84px;padding:6px 4px;display:grid}.desk-icon:hover{background:#ffffff1a}.desk-icon.selected{background:#ffffff2e;border-color:#ffffff59}.desk-label{text-align:center;text-shadow:0 1px 2px #000000b3;font-size:11.5px;line-height:1.25}.tile{color:#fff;border-radius:6px;place-items:center;width:40px;height:40px;display:grid;box-shadow:0 2px 6px #00000059}.tile-net{background:#2f6f8f}.tile-cmd{background:#1a1916;border:1px solid #4a463f}.tile-web{color:#2e5a64;background:#e8e4da}.tile-srv{background:#6b4f2a}.os-window{color:#1a1916;background:#fbfaf7;border:1px solid #8a8478;border-radius:4px;flex-direction:column;min-width:220px;display:flex;position:absolute;overflow:hidden;box-shadow:0 8px 24px #0006}.os-window[hidden]{display:none}.os-titlebar{color:#4f4b43;-webkit-user-select:none;user-select:none;cursor:default;background:#dcd8cf;align-items:center;gap:.45rem;height:30px;padding-left:.6rem;font-size:12.5px;display:flex}.os-window.focused .os-titlebar{color:#f3f1ec;background:#2e2c27}.os-titlebar>span{flex:1;font-weight:500}.os-titlebar button{width:38px;height:100%;color:inherit;cursor:pointer;background:0 0;border:0;place-items:center;display:grid}.os-titlebar button:hover{background:#7f7f7f40}.os-titlebar button.close:hover{color:#fff;background:#c92a2a}.os-body{flex:1;min-height:0;overflow:auto}.taskbar{color:#e6e1d6;background:#1f1d19;align-items:center;gap:4px;height:34px;padding:0 6px 0 4px;display:flex}.taskbar .start{color:#f76707;width:34px;height:28px;font:600 13px var(--mono);cursor:pointer;background:0 0;border:0;border-radius:3px}.taskbar .start:hover,.taskbar .start.on{background:#34312b}.task-items{flex:1;gap:3px;min-width:0;display:flex;overflow:hidden}.task{color:#cfc9bc;cursor:pointer;background:0 0;border:0;border-bottom:2px solid #0000;border-radius:3px 3px 0 0;align-items:center;gap:6px;max-width:170px;height:28px;padding:0 10px;font-size:12px;display:inline-flex}.task span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.task:hover{background:#2c2a25}.task.active{color:#fff;background:#34312b;border-bottom-color:#f76707}.tray{font:400 12px var(--mono);color:#cfc9bc;align-items:center;gap:10px;padding:0 4px 0 10px;display:inline-flex}.tray-bad{color:#ff6b6b}.start-menu{z-index:9999;color:#eeeae1;background:#2a2823;border:1px solid #45413a;border-bottom:0;border-radius:4px 4px 0 0;width:230px;padding:6px;display:grid;position:absolute;bottom:0;left:0;box-shadow:0 -6px 20px #00000059}.start-user{border-bottom:1px solid #45413a;align-items:center;gap:8px;margin-bottom:4px;padding:8px 6px 10px;display:flex}.start-user .small{color:#a8a295;font-family:var(--mono)}.start-menu button{color:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:3px;align-items:center;gap:10px;padding:7px 8px;font-size:12.5px;display:flex}.start-menu button:hover{background:#3a3731}.start-menu hr{border:0;border-top:1px solid #45413a;width:100%;margin:4px 0}.app-cmd{background:var(--console);height:100%;padding:4px 0 0 6px}.app-cmd .console-host{height:100%}.app-form{color:#1a1916;gap:.9rem;padding:.85rem 1rem 1rem;font-size:12.5px;display:grid}.app-form input,.app-form textarea{color:#1a1916;background:#fff;border-color:#cbc5b8;height:28px;font-size:12.5px}.app-form textarea{height:auto}.app-form input:disabled{background:#f1eee7}.form-section{border:1px solid #ddd8cc;border-radius:3px;gap:.45rem;padding:.6rem .75rem .75rem;display:grid}.form-section-title{font:600 10.5px var(--mono);text-transform:uppercase;letter-spacing:.1em;color:#857f73;margin-bottom:.15rem}.form-row{grid-template-columns:8.5rem 1fr;align-items:center;gap:.6rem;display:grid}.form-row.top{align-items:start}.form-row>span:first-child{color:#4f4b43}.radio-row{gap:1.25rem;display:flex}.radio-row label{align-items:center;gap:.35rem;display:flex}.radio-row input{height:auto}.form-actions{justify-content:flex-end;align-items:center;gap:.75rem;display:flex}.app-form .btn.primary{color:#fff;background:#1a1916;border-color:#1a1916}.app-browser{color:#1a1916;background:#fff;flex-direction:column;height:100%;display:flex}.browser-bar{background:#ece9e1;border-bottom:1px solid #d5d0c4;align-items:center;gap:4px;padding:5px 6px;display:flex}.browser-bar .icon-btn{color:#4f4b43;width:26px;height:26px}.url{color:#857f73;background:#fff;border:1px solid #cbc5b8;border-radius:13px;flex:1;align-items:center;gap:6px;height:26px;padding:0 8px;display:flex}.url input{height:22px;font:400 12px var(--mono);color:#1a1916;background:0 0;border:0;flex:1;padding:0}.url input:focus{box-shadow:none}.browser-view{flex:1;overflow:auto}.browser-start,.browser-error{text-align:center;color:#4f4b43;justify-items:center;gap:.45rem;padding:2.5rem 1.5rem;display:grid}.browser-error svg{color:#857f73}.browser-error h2{color:#1a1916;font-size:1.15rem}.browser-error p,.browser-start p{max-width:34rem}.web-page{padding:1.5rem 1.75rem;font-family:Georgia,Times New Roman,serif;line-height:1.6}.web-page h1{margin-bottom:.75rem;font-family:Georgia,serif;font-size:1.7rem;font-weight:400}.web-page p+p{margin-top:.6rem}.web-page footer{font:400 11px var(--mono);color:#857f73;border-top:1px solid #e2ded4;margin-top:1.5rem;padding-top:.6rem}@media (width<=1100px){.dock-tip{display:none}.ws-body{grid-template-columns:296px 1fr}.lab-line{grid-template-columns:2.25rem 1fr 6.5rem 4.5rem 3rem}.lab-domain{display:none}}@media (width<=860px){.shell,.shell.compact{grid-template-rows:auto 1fr;grid-template-columns:1fr}.sidebar,.shell.compact .sidebar{border-right:0;border-bottom:1px solid var(--border);flex-direction:row;align-items:center;padding:.5rem .75rem}.brand,.shell.compact .brand{padding:0 .5rem 0 0}.sidebar nav{flex:1;display:flex}.sidebar .label,.wordmark .word{display:none}.nav-item{justify-content:center;width:40px;padding:0}.sidebar-foot{border:0;align-items:center;margin:0;padding:0;display:flex}.ws{height:auto;min-height:100%}.ws-body{grid-template-columns:1fr}.ws-panel{border-right:0;border-bottom:1px solid var(--border);max-height:45vh}.stage{height:85vh}.ws-progress{display:none}.status-panel{flex-wrap:wrap}.stat.grow{border-left:0;border-top:1px solid var(--border);flex-basis:100%;order:3}.auth{grid-template-columns:1fr;gap:2rem}.inspector{width:calc(100% - 24px)}.desk-icon{width:70px}}@media (width<=600px){.page{padding:1.25rem 1rem 3rem}.hide-sm{display:none}.lab-line{grid-template-columns:2rem 1fr 2.5rem}.lab-line .tag,.lab-xp{display:none}.next-up{flex-direction:column;align-items:stretch}.status-panel{grid-template-columns:1fr 1fr;display:grid}.stat{min-width:0}.stat.wide-sm{border-left:0;border-top:1px solid var(--border);grid-column:1/-1}.stat.grow{grid-column:1/-1}.board th,.board td{padding:.6rem .5rem}.board .place{width:auto}.board .num{white-space:nowrap}.canvas-legend{display:none}.auth-hero h1{font-size:1.8rem}}.mastery-list{margin:0;padding:0;list-style:none}.mastery-list li{grid-template-columns:minmax(0,1fr) auto 3rem;align-items:center;gap:1rem;padding:.75rem 1.1rem;display:grid}.mastery-list li+li{border-top:1px solid var(--border)}.mastery-name{gap:.1rem;display:grid}.mastery-count{text-align:right}.mastery-soon{text-align:right;grid-column:2/-1}.badge-grid{grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:.75rem;margin:0;padding:0;list-style:none;display:grid}.badge-grid li{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);align-items:flex-start;gap:.75rem;padding:.9rem 1rem;display:flex}.badge-grid li.locked{border-style:dashed;border-color:var(--border-strong);background:0 0}.badge-grid li.locked .badge-mark{background:var(--surface-3);color:var(--text-3)}.badge-grid li.locked strong{color:var(--text-2)}.badge-text{gap:.15rem;display:grid}.badge-state{color:var(--text-3)}.badge-grid li.earned .badge-state{color:var(--accent)}.badge-mark{border-radius:var(--radius-sm);background:var(--accent-soft);width:36px;height:36px;color:var(--accent);flex:none;place-items:center;display:inline-grid}.new-badges{gap:.5rem;margin:0;padding:0;list-style:none;display:grid}.new-badges li{align-items:center;gap:.6rem;display:flex}.new-badges .badge-mark{width:28px;height:28px}.new-badges a{color:var(--accent)}@media (width<=600px){.mastery-list li{grid-template-columns:minmax(0,1fr) 3rem}.mastery-list .leds,.mastery-soon{text-align:left;grid-area:2/1/auto/-1}}.auth-intro{gap:.25rem;display:grid}.auth-intro h1,.auth-intro h2{font-size:1.25rem}.provider-buttons{gap:.6rem;display:grid}.btn.provider{gap:.6rem;height:42px}.btn.provider.google{color:#1f1f1f;background:#fff;border-color:#747775}.btn.provider.github{color:#fff;background:#24292f;border-color:#24292f}.btn.provider.github:hover{background:#1b1f23}.auth-card a:not(.btn){color:var(--accent)}.auth-or{color:var(--text-3);align-items:center;gap:.75rem;font-size:.8rem;display:flex}.auth-or:before,.auth-or:after{content:"";border-top:1px solid var(--border);flex:1}.center-page{place-items:center;min-height:100%;padding:2rem 1rem;display:grid}.auth-card.welcome{width:min(28rem,100%)}.auth-card.welcome h1{font-size:1.5rem}.page.standalone{max-width:760px}.prose{gap:.6rem;padding:1.5rem 1.75rem;line-height:1.6;display:grid}.prose h2{margin-top:.75rem;font-size:1.05rem}.prose h2:first-child{margin-top:0}.prose p,.prose ul{color:var(--text-2);margin:0}.prose ul{gap:.35rem;padding-left:1.2rem;display:grid}.prose a{color:var(--accent)}.account{gap:1.25rem;padding:1.25rem;display:grid}.account-name{flex-wrap:wrap;align-items:flex-end;gap:.75rem;display:flex}.account-name label,.account-delete label{gap:.35rem;font-size:.88rem;font-weight:500;display:grid}.account-name input{width:min(22rem,100%)}.account-signin{flex-wrap:wrap;align-items:baseline;gap:.4rem;margin:0;display:flex}.account-delete{border-top:1px solid var(--border);gap:.6rem;padding-top:1.1rem;display:grid}.account-delete h3{color:var(--danger);font-size:1rem}.account-delete p{margin:0}.account-delete input{width:min(12rem,100%)}.segmented{border:1px solid var(--border-strong);border-radius:var(--radius-sm);justify-self:start;display:inline-flex;overflow:hidden}.segmented button{font:inherit;background:var(--surface);color:var(--text-2);cursor:pointer;border:0;padding:.4rem .9rem;font-size:.88rem}.segmented button+button{border-left:1px solid var(--border-strong)}.segmented button[aria-pressed=true]{background:var(--ink);color:var(--ink-text)}