@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-cyrillic-ext-wght-normal-d45eAU9y.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-cyrillic-wght-normal-BAAhND-U.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-greek-wght-normal-CmyJS8uq.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-vietnamese-wght-normal-Dg1JeJN0.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-latin-ext-wght-normal-CIII54If.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Sans Variable;font-style:normal;font-display:swap;font-weight:100 700;src:url(./ibm-plex-sans-latin-wght-normal-IvpUvPa2.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(./ibm-plex-mono-latin-400-normal-DMJ8VG8y.woff2)format("woff2"),url(./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:600;src:url(./ibm-plex-mono-latin-600-normal-BgSNZQsw.woff2)format("woff2"),url(./ibm-plex-mono-latin-600-normal-DWFSQ4vo.woff)format("woff")}:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--font-sans:"IBM Plex Sans Variable", "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;--text:#fafafa;--background:#171717;--secondary-background:#1a1a1a;--tertiary-background:#242424;--primary-color:#00565c;--primary-color-lightened:#005a61;--primary-color-darkened:#004c52;--secondary-color:#62bbc1;--secondary-color-lightened:#69bdc3;--accent:#93cfd2;--danger:#d95151;--danger-darkened:#4b1111;--warning:#d9b24b;--warning-darkened:#4c3c10;--success:#54d494;--success-darkened:#12492e;--bg:var(--background);--panel:var(--secondary-background);--panel-2:var(--tertiary-background);--border:color-mix(in srgb, var(--accent) 50%, var(--tertiary-background));--ink:var(--text);--muted:color-mix(in srgb, var(--text) 62%, var(--tertiary-background));--danger-foreground:color-mix(in srgb, var(--danger) 65%, var(--text));--term:var(--background);--term-ink:var(--text);--paper:var(--text);--paper-ink:var(--background)}*{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);margin:0;line-height:1.45}::selection{background:var(--primary-color-lightened);color:var(--text)}button,input,textarea{font:inherit}.topbar{background:var(--panel);border-bottom:1px solid var(--border);align-items:center;gap:1.5rem;min-height:3rem;padding:0 1rem;display:flex}.brand{color:var(--ink);font-weight:720;text-decoration:none}.topbar nav{flex-wrap:wrap;align-items:center;gap:.35rem;display:flex}.topbar nav a{color:var(--muted);border-radius:6px;padding:.35rem .55rem;font-size:.9rem;text-decoration:none}.topbar nav a.router-link-active,.topbar nav a:hover{color:var(--accent);background:var(--panel-2)}.ide-shell{grid-template-columns:minmax(15rem,19rem) minmax(0,1fr);height:calc(100vh - 3rem);min-height:38rem;display:grid;overflow:hidden}.explorer{background:var(--panel);border-right:1px solid var(--border);grid-template-rows:auto auto minmax(0,1fr);gap:.65rem;min-width:0;max-height:calc(100vh - 3rem);padding:.85rem;display:grid;overflow:hidden}.explorer-header,.panel-title-row,.terminal-toolbar{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.explorer h2,.panel h1{letter-spacing:0;margin:0;font-size:.98rem}.explorer-header span,.count-pill{color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:.1rem .45rem;font-size:.78rem}#problem-search,.filter-search,.page-controls input{border:1px solid var(--border);background:var(--panel-2);width:100%;color:var(--ink);border-radius:6px;padding:.5rem .55rem}#problem-search:focus,.filter-search:focus,.page-controls input:focus{border-color:var(--accent);outline:1px solid var(--accent)}.problem-list{align-content:start;gap:.35rem;min-height:0;display:grid;overflow:hidden auto}.problem-link{text-align:left;color:var(--ink);background:0 0;border:1px solid #0000;border-radius:6px;gap:.12rem;min-height:auto;padding:.55rem;display:grid}.problem-link:hover,.problem-link.active{background:var(--panel-2);border-color:var(--border)}.problem-link.active{box-shadow:inset 3px 0 0 var(--secondary-color)}.problem-link span,.problem-link small,.question-meta,.page-panel p{color:var(--muted);font-size:.86rem}.workspace{grid-template-rows:minmax(0,1fr) minmax(12rem,28vh);gap:.75rem;min-width:0;min-height:0;padding:.75rem;display:grid}.work-grid{grid-template-columns:minmax(20rem,.95fr) minmax(22rem,1.05fr);gap:.75rem;min-height:0;display:grid}.work-grid.single-column{grid-template-columns:minmax(0,1fr)}.panel,.terminal-panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;min-width:0;min-height:0}.question-panel,.editor-panel{display:grid;overflow:hidden}.question-panel{grid-template-rows:auto auto minmax(0,1fr)}.editor-panel{grid-template-rows:auto minmax(0,1fr)}.question-head-actions{align-items:center;gap:.5rem;display:flex}.question-context{border-bottom:1px solid var(--border);background:var(--panel-2);margin-bottom:.5rem;padding:.5rem .75rem .75rem}.question-context h2{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:0 0 .35rem;font-size:.85rem}.context-text{white-space:pre-wrap;color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:.88rem}.panel-title-row,.terminal-toolbar{border-bottom:1px solid var(--border);background:var(--panel-2);padding:.65rem .75rem}.question-meta{border-bottom:1px solid var(--border);margin:0;padding:.45rem .75rem}.qview{min-height:0;overflow:auto}.qview-body{padding:.75rem}.fallback-text{white-space:pre-wrap;font-size:.95rem}.positioned-question{padding:.75rem;overflow:auto}.layout-page{background:var(--paper);margin:0 0 .75rem;position:relative}.layout-token{white-space:pre;color:var(--paper-ink);font-family:Arial,Helvetica,sans-serif;line-height:1;position:absolute}.layout-token.mono{font-family:var(--font-mono)}.layout-blank{border:0;border-bottom:1.5px solid var(--warning);background:var(--warning-darkened);color:var(--warning);font-family:var(--font-mono);padding:0 2px;position:absolute}.layout-blank:focus{background:var(--primary-color-darkened);border-bottom-color:var(--accent);outline:none}.layout-blank-static{border-bottom:1px dotted var(--primary-color-lightened);position:absolute}.question-image{border:1px solid var(--border);background:var(--paper);max-width:100%;height:auto;margin:.75rem;display:block}.question-context .question-image{margin:.25rem 0 0}.view-toggle{border:1px solid var(--border);border-radius:6px;display:inline-flex;overflow:hidden}.view-toggle button{cursor:pointer;background:var(--panel);color:var(--muted);border:0;padding:.3rem .6rem;font-size:.82rem}.view-toggle button+button{border-left:1px solid var(--border)}.view-toggle button.active{background:var(--primary-color-lightened);color:var(--text)}.blanks-panel{grid-template-rows:auto minmax(0,1fr);display:grid;overflow:hidden}.blanks-body{flex-direction:column;gap:.75rem;min-height:0;padding:.75rem;display:flex;overflow:auto}.blank-field{flex-direction:column;gap:.3rem;display:flex}.blank-context{font-family:var(--font-mono);color:var(--ink);align-items:baseline;gap:.5rem;font-size:.85rem;display:flex}.blank-index{background:var(--panel-2);border:1px solid var(--border);min-width:1.4rem;height:1.4rem;color:var(--muted);font-family:var(--font-sans);border-radius:999px;flex:none;justify-content:center;align-items:center;font-size:.75rem;display:inline-flex}.blank-line{white-space:pre-wrap;word-break:break-word}.blank-input{border:1px solid var(--border);background:var(--panel-2);color:var(--ink);font-family:var(--font-mono);border-radius:.4rem;padding:.45rem .55rem}.blank-input:focus{outline:2px solid var(--accent);outline-offset:0}details summary{cursor:pointer;color:var(--accent);margin:.25rem 0;font-weight:620}.mark-point{border-left:3px solid var(--secondary-color);background:var(--panel-2);grid-template-columns:auto minmax(0,1fr);gap:.25rem .5rem;margin:.35rem 0;padding:.45rem .6rem;display:grid}.mark-point small{color:var(--muted);grid-column:2}.notice,.error-box,.empty-panel{border-radius:6px;margin:.55rem;padding:.6rem;font-size:.88rem}.notice{color:var(--warning);background:var(--warning-darkened);border:1px solid var(--warning)}.error-box{color:var(--danger-foreground);background:var(--danger-darkened);border:1px solid var(--danger)}.plain-pre{white-space:pre-wrap;background:var(--panel-2);border:1px solid var(--border);border-radius:6px;padding:.6rem;font-size:.82rem;overflow:auto}#editor-mount{height:100%;min-height:0}.cm-editor{background:var(--panel);height:100%;color:var(--ink);font-size:.93rem}.cm-scroller{font-family:var(--font-mono)}.cm-editor.cm-focused{outline:1px solid var(--accent)}.cm-gutters{background:var(--panel-2)!important;color:var(--muted)!important;border-right-color:var(--border)!important}.cm-activeLine,.cm-activeLineGutter{background:color-mix(in srgb, var(--primary-color) 38%, transparent)!important}.cm-selectionBackground{background:var(--primary-color-lightened)!important}.cm-content ::selection{background:var(--primary-color-lightened)!important}.cm-cursor,.cm-dropCursor{border-left-color:var(--accent)!important}.editor-actions,.terminal-actions{flex-wrap:wrap;align-items:center;gap:.4rem;display:flex}button{border:1px solid var(--border);background:var(--panel-2);min-height:2rem;color:var(--ink);cursor:pointer;white-space:nowrap;border-radius:6px;padding:.35rem .65rem}button:hover:not(:disabled){border-color:var(--secondary-color)}button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.primary-button{background:var(--primary-color-lightened);border-color:var(--secondary-color);color:var(--text)}.secondary-button{border-color:var(--secondary-color);color:var(--accent)}.submit-button{background:var(--success-darkened);border-color:var(--success);color:var(--text);font-weight:620}.submit-button:disabled{opacity:.65;cursor:progress}.ghost-button,.toggle-button{background:0 0}.toggle-button.active{background:var(--primary-color-lightened);border-color:var(--secondary-color);color:var(--text)}.terminal-panel{background:var(--term);color:var(--term-ink);grid-template-rows:auto minmax(0,1fr);display:grid;overflow:hidden}.terminal-toolbar{background:var(--panel-2);border-bottom-color:var(--border)}.terminal-toolbar button{color:var(--term-ink);border-color:var(--border)}.terminal-output{white-space:pre-wrap;min-height:0;font-family:var(--font-mono);margin:0;padding:.75rem;font-size:.82rem;overflow:auto}.page-shell{max-width:76rem;margin:0 auto;padding:1rem}.page-panel{padding-bottom:1rem}.page-panel>h1{padding:.75rem .75rem 0}.page-panel>p{padding:0 .75rem}.page-controls{padding:.75rem}.table-wrap{padding:0 .75rem;overflow:auto}table{border-collapse:collapse;width:100%;font-size:.9rem}th,td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:.5rem .55rem}th{color:var(--muted);background:var(--panel-2)}.tag-chips{flex-wrap:wrap;gap:.25rem;margin:0;padding:0;list-style:none;display:flex}.tag-chip{border:1px solid var(--border);color:var(--muted);white-space:nowrap;background:0 0;border-radius:999px;align-items:center;gap:.3rem;min-height:auto;padding:.1rem .5rem;font-size:.76rem;line-height:1.3;text-decoration:none;display:inline-flex}a.tag-chip:hover,button.tag-chip:hover{border-color:var(--secondary-color);color:var(--accent)}.tag-chip.active{background:var(--primary-color-lightened);border-color:var(--secondary-color);color:var(--text)}.tag-chip.empty:not(.active){opacity:.4}.tag-count{color:var(--muted);font-size:.7rem}.tag-chip.active .tag-count{color:var(--accent)}.tag-chips.size-small .tag-chip{padding:.05rem .42rem;font-size:.71rem}.tag-overflow{color:var(--muted);align-self:center;font-size:.71rem}.question-tags{border-bottom:1px solid var(--border);padding:.45rem .75rem}.problem-link .tag-chips{margin-top:.22rem}.row-text{margin:0 0 .3rem}.filter-panel{gap:.5rem;min-width:0;display:grid}.filter-status{align-items:center;gap:.5rem;display:flex}.filter-clear{min-height:auto;color:var(--muted);padding:.1rem .5rem;font-size:.78rem}.facets>summary{cursor:pointer;color:var(--muted);align-items:center;gap:.5rem;padding:.2rem 0;font-size:.82rem;display:flex}.facets>summary::-webkit-details-marker{display:none}.facets>summary:before{content:"▸";font-size:.7rem}.facets[open]>summary:before{content:"▾"}.facet-mode{align-items:center;gap:.5rem;margin:.4rem 0 .55rem;display:flex}.facet-mode-label{color:var(--muted);font-size:.78rem}.facet-groups{gap:.6rem;display:grid}.facet-group h3{color:var(--muted);letter-spacing:.02em;margin:0 0 .3rem;font-size:.72rem;font-weight:600}.filter-panel.variant-compact .facet-groups{max-height:14rem;padding-right:.2rem;overflow-y:auto}.filter-panel.variant-page .facet-groups{grid-template-columns:repeat(auto-fit,minmax(15rem,1fr))}.learn-page{width:min(100% - 2rem,78rem);margin:0 auto;padding:clamp(2rem,5vw,5rem) 0 6rem}.learn-hero{border-bottom:1px solid var(--border);grid-template-columns:minmax(0,1fr) minmax(16rem,22rem);align-items:end;gap:clamp(2rem,6vw,6rem);padding-bottom:clamp(2.5rem,6vw,5rem);display:grid}.learn-kicker,.lesson-label,.lesson-meta,.frequency-label{color:var(--accent);font-family:var(--font-mono);letter-spacing:.08em;text-transform:uppercase;font-size:.68rem}.learn-hero h1{letter-spacing:-.065em;max-width:50rem;margin:.75rem 0 1.25rem;font-size:clamp(2.8rem,7vw,6.5rem);font-weight:540;line-height:.94}.learn-hero h1 span{color:var(--accent);font-family:Georgia,Times New Roman,serif;font-style:italic;font-weight:400}.learn-intro{max-width:43rem;color:var(--muted);margin:0;font-size:clamp(1rem,1.8vw,1.2rem);line-height:1.65}.frequency-card{border:1px solid var(--border);background:linear-gradient(145deg, var(--panel-2), var(--panel));border-radius:.75rem;gap:.35rem;padding:1.2rem;display:grid}.frequency-card strong{margin-top:.55rem;font-size:1.35rem}.frequency-card>span:not(.frequency-label){color:var(--muted);font-size:.85rem}.frequency-bar{background:var(--background);border-radius:999px;height:.28rem;margin-top:.85rem;overflow:hidden}.frequency-bar i{background:var(--accent);width:44%;height:100%;display:block}.lesson-index{border-bottom:1px solid var(--border);scrollbar-width:thin;gap:.5rem;padding:1rem 0;display:flex;overflow-x:auto}.lesson-index a{border:1px solid var(--border);color:var(--muted);border-radius:999px;flex:none;padding:.38rem .65rem;font-size:.76rem;text-decoration:none}.lesson-index a:hover{border-color:var(--secondary-color);color:var(--accent)}.lesson-section{padding-top:3.5rem;scroll-margin-top:4rem}.section-heading{align-items:baseline;gap:.8rem;margin-bottom:1rem;display:flex}.section-heading span{color:var(--accent);font-family:var(--font-mono);font-size:.72rem}.section-heading h2{margin:0;font-size:1.15rem;font-weight:600}.lesson-list{border-top:1px solid var(--border)}.lesson-card{border-bottom:1px solid var(--border);scroll-margin-top:4rem}.lesson-card>summary{cursor:pointer;grid-template-columns:2.5rem minmax(0,1fr) 2rem;align-items:start;gap:1rem;padding:1.4rem 0;list-style:none;display:grid}.lesson-card>summary::-webkit-details-marker{display:none}.lesson-number{color:var(--muted);font-family:var(--font-mono);padding-top:.2rem;font-size:.72rem}.lesson-meta{flex-wrap:wrap;gap:.4rem 1rem;display:flex}.lesson-meta span+span{color:var(--muted)}.lesson-heading-copy h3{letter-spacing:-.025em;margin:.35rem 0 .3rem;font-size:clamp(1.25rem,2.3vw,1.75rem);font-weight:580}.lesson-heading-copy>p{max-width:48rem;color:var(--muted);margin:0}.lesson-toggle{border:1px solid var(--border);border-radius:50%;width:1.8rem;height:1.8rem;position:relative}.lesson-toggle:before,.lesson-toggle:after{content:"";background:var(--accent);width:.65rem;height:1px;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.lesson-toggle:after{transition:transform .14s;transform:translate(-50%,-50%)rotate(90deg)}.lesson-card[open] .lesson-toggle:after{transform:translate(-50%,-50%)rotate(0)}.lesson-body{grid-template-columns:minmax(0,.85fr) minmax(22rem,1.15fr);gap:clamp(1.5rem,5vw,4rem);padding:.25rem 3rem 2rem 3.5rem;display:grid}.lesson-explanation>p{color:var(--ink);margin:.45rem 0 1.2rem;line-height:1.65}.lesson-explanation ul{color:var(--muted);margin:.45rem 0 1.25rem;padding-left:1.1rem}.lesson-explanation li+li{margin-top:.35rem}.lesson-code{border:1px solid var(--border);color:#dce9e4;font-family:var(--font-mono);white-space:pre;background:#0d1210;border-radius:.65rem;align-self:start;margin:0;padding:1.2rem;font-size:.78rem;line-height:1.75;overflow:auto}.practice-link,.practice-unavailable{color:var(--accent);align-items:center;gap:.8rem;font-weight:600;text-decoration:none;display:inline-flex}.practice-unavailable{color:var(--muted);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.04em;font-size:.7rem;font-weight:400}.practice-link:hover{text-decoration:underline}.results-panel{border-top:3px solid var(--secondary-color);background:var(--bg);padding:1rem 1.25rem 2rem}.results-header{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:.85rem;display:flex}.results-header h1{margin:0;font-size:1.05rem}.results-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);align-items:start;gap:1rem;display:grid}.results-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.85rem 1rem 1rem}.results-card h2{margin:0 0 .6rem;font-size:.95rem}.grading-title{align-items:center;gap:.5rem;margin-bottom:.6rem;display:flex}.grading-title h2{margin:0}.dry-badge,.model-badge{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:.1rem .5rem;font-size:.72rem}.dry-badge{color:var(--warning);border-color:var(--warning);background:var(--warning-darkened)}.ms-answer{margin-top:.75rem}.score-row{align-items:baseline;gap:.5rem;margin-bottom:.75rem;display:flex}.score{color:var(--accent);font-size:1.6rem;font-weight:720}.score-label{color:var(--muted);font-size:.85rem}.grade-point{border-left:3px solid var(--border);background:var(--panel-2);border-radius:0 6px 6px 0;margin:.4rem 0;padding:.4rem .65rem}.grade-point-head{align-items:center;gap:.5rem;display:flex}.award{color:var(--danger-foreground);font-weight:720}.award.yes{color:var(--success)}.grade-point-head .confidence{text-transform:uppercase;letter-spacing:.03em;margin-left:auto}.evidence{color:var(--ink);margin:.35rem 0 0;font-size:.86rem}.concerns{color:var(--warning);margin:.35rem 0 0;padding-left:1.1rem;font-size:.83rem}.overall{border-top:1px solid var(--border);margin:.85rem 0 0;padding-top:.6rem;font-size:.9rem}@media (width<=68rem){.ide-shell{grid-template-columns:1fr;height:auto;min-height:0}.explorer{border-right:0;border-bottom:1px solid var(--border);max-height:calc(100vh - 3rem)}.workspace{grid-template-rows:auto 16rem;min-height:54rem}.work-grid,.results-grid{grid-template-columns:1fr}.question-panel,.editor-panel{min-height:24rem}}@media (width<=48rem){.learn-hero,.lesson-body{grid-template-columns:1fr}.frequency-card{max-width:24rem}.lesson-card>summary{grid-template-columns:1.6rem minmax(0,1fr) 1.8rem;gap:.65rem}.lesson-body{padding:.25rem 0 1.5rem 2.25rem}.lesson-code{font-size:.7rem}}@media (width<=38rem){.topbar{flex-direction:column;align-items:flex-start;gap:.3rem;padding:.55rem .75rem}.workspace{padding:.5rem}.panel-title-row,.terminal-toolbar{flex-direction:column;align-items:flex-start}}.account[data-v-5caf5172]{align-items:center;gap:.6rem;margin-left:auto;display:flex}.who[data-v-5caf5172]{color:var(--muted);font-size:.85rem}.signout[data-v-5caf5172]{cursor:pointer;border:1px solid var(--border);background:var(--panel-2);color:var(--ink);border-radius:.4rem;padding:.3rem .6rem;font-size:.85rem}
