.lv-hero{display:flex;flex-direction:column;gap:32px;padding:56px var(--gutter) 40px;background:var(--c);color:var(--ink)}.lv-hero-top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}.lv-hero-name{display:flex;flex-direction:column;gap:14px}.lv-crumb{margin:0;font-size:1.125rem;font-weight:500}.lv-crumb a{color:var(--ink)}.lv-title{display:flex;align-items:center;gap:0.12em;margin:0;font-size:clamp(3.25rem,7.4vw,7.5rem);font-weight:800;letter-spacing:-0.05em;line-height:0.82}.lv-title-text{min-width:0;line-height:0.92}.lv-hero-text{margin:0;max-width:36ch;font-size:1.25rem;line-height:1.45}.lv-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.lv-tab{display:flex;align-items:center;gap:18px;padding:20px;border-radius:24px;background:rgba(255,255,255,0.35);color:var(--ink);text-decoration:none;transition:background-color 0.16s ease}.lv-tab:hover{color:var(--ink);text-decoration:none;background:rgba(255,255,255,0.55)}.lv-tab[aria-current="true"],.lv-tab[aria-current="true"]:hover{background:var(--ink);color:var(--paper)}.lv-tab-face{width:72px;height:72px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:20px;background:rgba(8,8,10,0.12);color:var(--ink)}.lv-tab[aria-current="true"] .lv-tab-face{background:var(--ink);color:var(--c)}.lv-tab-face .face{width:50px;height:50px}.lv-tab-text{display:flex;flex-direction:column;gap:4px;min-width:0}.lv-tab-number{font-size:0.9375rem;font-weight:500}.lv-tab-name{font-size:2rem;font-weight:800;letter-spacing:-0.04em;line-height:1}.lv-tab-state{font-size:0.9375rem}.lv-panel{padding:56px var(--gutter) 96px}.lv-panel[hidden]{display:none}.lv-body{display:flex;flex-wrap:wrap;align-items:flex-start;gap:40px}.lv-path{flex:999 1 620px;min-width:0;display:flex;flex-direction:column;gap:10px}.lv-intro{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}.lv-intro p{margin:0;max-width:60ch;color:var(--text-muted);font-size:1.125rem;line-height:1.5}.lv-h2{margin:0;font-size:clamp(2.5rem,4.4vw,4.25rem);font-weight:800;letter-spacing:-0.05em;line-height:0.92}.lv-unit{border:2px solid transparent;border-radius:20px;background:var(--surface-2);overflow:hidden}.lv-unit.is-here{border-color:var(--c)}.lv-unit-head{display:flex;align-items:center;gap:18px;padding:20px;cursor:pointer;list-style:none}.lv-unit-head::-webkit-details-marker{display:none}.lv-unit-mark{width:52px;height:52px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--border-strong);color:var(--text);font-family:var(--mono);font-size:1.0625rem;font-weight:600}.lv-unit.is-here .lv-unit-mark{background:var(--c);color:var(--ink)}.lv-unit.is-done .lv-unit-mark{background:var(--ch-sql);color:var(--ink)}.lv-unit-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.lv-unit-kicker{color:var(--text-muted);font-size:0.875rem}.lv-unit-title{font-size:1.625rem;font-weight:800;letter-spacing:-0.03em;line-height:1.05}.lv-unit-can{font-size:1rem}.lv-unit-meta{flex:none;color:var(--text-muted);font-size:0.9375rem;text-align:right}.lv-lessons{list-style:none;margin:0;padding:0 20px 20px 90px;display:flex;flex-direction:column;gap:6px}.lv-lesson{display:flex;align-items:center;gap:14px;padding:12px 16px;border-radius:14px;background:var(--surface);color:var(--text);font-size:1.0625rem;text-decoration:none}.lv-lesson:hover{color:var(--text);text-decoration:none;background:var(--border-strong)}.lv-tick{width:26px;height:26px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--border-strong);color:var(--ink);font-size:0.875rem;font-weight:700}.lv-lesson.is-done .lv-tick{background:var(--ch-sql)}.lv-lesson-title{flex:1}.lv-lesson-min{color:var(--text-muted);font-size:0.875rem}.lv-check{margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 24px;padding:24px;border-radius:24px;background:var(--lime);color:var(--ink);text-decoration:none}.lv-check:hover{color:var(--ink);text-decoration:none}.lv-check-text{display:flex;flex-direction:column;gap:6px}.lv-check-kicker{font-size:0.9375rem;font-weight:500}.lv-check-title{font-size:1.875rem;font-weight:800;letter-spacing:-0.03em}.lv-check-line{max-width:52ch;font-size:1.0625rem}.lv-check-go{min-height:52px;padding:0 24px;display:inline-flex;align-items:center;border-radius:var(--pill);background:var(--ink);color:var(--lime);font-size:1.0625rem;font-weight:700}.lv-side{position:sticky;top:96px;flex:1 1 300px;min-width:0;display:flex;flex-direction:column;gap:8px}.lv-card{display:flex;flex-direction:column;gap:14px;padding:24px;border-radius:20px;background:var(--surface-2)}.lv-card-label{margin:0;color:var(--text-muted);font-size:0.9375rem}.lv-card-text{margin:0;font-size:1.0625rem;line-height:1.45}.lv-card-text a,.lv-link{color:var(--text)}.lv-link{display:inline-flex;align-items:center;min-height:44px}.lv-big{margin:0;font-size:2.5rem;font-weight:800;letter-spacing:-0.04em;line-height:1}.lv-bar{height:10px;border-radius:var(--pill);background:var(--border-strong);overflow:hidden}.lv-bar span{display:block;height:100%;background:var(--c)}.lv-go{min-height:52px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--pill);background:var(--lime);color:var(--ink);font-size:1.0625rem;font-weight:700;text-align:center;text-decoration:none}.lv-go:hover{color:var(--ink);text-decoration:none}.lv-words{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}.lv-word{padding:6px 10px;border:0;border-radius:var(--pill);background:var(--surface);color:var(--text);font-family:var(--mono);font-size:0.875rem;cursor:pointer}.lv-word[aria-expanded="true"]{background:var(--lime);color:var(--ink)}.lv-word-meaning{margin:0;font-size:1rem;line-height:1.45}.lv-word-meaning[hidden]{display:none}.lv-soon{display:flex;align-items:center;gap:28px;max-width:760px;padding:32px;border-radius:24px;background:var(--surface-2)}.lv-soon .face{width:80px;height:80px;flex:none;color:var(--ch-php)}.lv-soon p{margin:12px 0 0;font-size:1.125rem;line-height:1.5}.lv-sr,.pl-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.lv :focus-visible{outline:3px solid var(--lime);outline-offset:2px}.lv-hero :focus-visible,.lv-check:focus-visible{outline-color:var(--ink)}.pl{min-height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--text)}.pl-top{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:20px;padding:18px var(--gutter);background:var(--bg);border-bottom:1px solid var(--border)}.pl-leave{width:44px;height:44px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--surface-2);color:var(--text);font-size:1.375rem;text-decoration:none}.pl-leave:hover{color:var(--text);text-decoration:none}.pl-where{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.pl-crumb{margin:0;color:var(--text-muted);font-size:0.875rem}.pl-dots{list-style:none;margin:0;padding:0;display:flex;gap:6px}.pl-dots li{flex:1;height:8px;border-radius:var(--pill);background:var(--border-strong);transition:background-color 0.2s ease}.pl-dots li.is-done{background:var(--ch-sql)}.pl-dots li.is-now{background:var(--lime)}.pl-buddy{display:flex;align-items:center;gap:12px;flex:none}.pl-say{margin:0;max-width:24ch;padding:10px 16px;border-radius:22px 22px 6px 22px;background:var(--paper);color:var(--ink);font-size:1rem;font-weight:700;line-height:1.25}.pl-face{width:64px;height:64px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:18px;background:var(--lime);color:var(--ink);transition:background-color 0.2s ease}.pl-face .face{width:44px;height:44px}.pl-face[data-state="grin"]{background:var(--ch-sql)}.pl-face[data-state="open"]{background:var(--ch-python)}.pl-face[data-state="frown"]{background:var(--ch-java)}.pl-face[data-state="unsure"]{background:var(--ch-php)}.pl-face[data-state="shut"]{background:var(--ch-javascript)}.pl-stage{flex:1;width:100%;max-width:820px;margin:0 auto;padding:48px var(--gutter) 40px;box-sizing:border-box}.pl-step{display:flex;flex-direction:column;gap:26px}.pl-step[hidden]{display:none}.pl-kind{margin:0;font-size:0.9375rem;font-weight:700;letter-spacing:0.02em;color:var(--lime)}.pl-step--guess .pl-kind{color:var(--ch-python)}.pl-step--try .pl-kind{color:var(--ch-javascript)}.pl-step--fix .pl-kind{color:var(--ch-php)}.pl-step--done .pl-kind{color:var(--ch-sql)}.pl-h{margin:0;font-size:clamp(2.25rem,4.6vw,3.75rem);font-weight:800;letter-spacing:-0.04em;line-height:1;outline:none}.pl-h--done{font-size:clamp(2.75rem,6vw,5rem);letter-spacing:-0.05em;line-height:0.95}.pl-h code,.pl-meet-text code,.pl-lead code,.pl-note code,.pl-takeaways code,.pl-hint-list code{font-family:var(--mono);font-size:0.9em;color:var(--ch-typescript)}.pl-term{padding:0;border:0;background:none;color:var(--lime);font:inherit;text-decoration:underline dotted;text-decoration-thickness:3px;text-underline-offset:6px;cursor:pointer}.pl-term[aria-expanded="true"]{text-decoration-style:solid}.pl-term code{color:inherit}.pl-def{margin:0;padding:16px 18px;border-left:6px solid var(--lime);border-radius:12px;background:var(--surface-2);font-size:1.125rem;line-height:1.5}.pl-def[hidden]{display:none}.pl-def strong{font-family:var(--mono);color:var(--lime)}.pl-meet{display:flex;flex-wrap:wrap;align-items:center;gap:28px}.pl-meet-text{flex:1 1 320px;min-width:0;display:flex;flex-direction:column;gap:14px;font-size:1.25rem;line-height:1.5}.pl-meet-text p{margin:0}.pl-note{color:var(--text-muted);font-size:1.0625rem}.pl-lead{margin:0;color:var(--text-muted);font-size:1.1875rem;line-height:1.5}.pl-code{tab-size:4;margin:0;padding:18px 20px;border-radius:14px;background:var(--code-bg);color:var(--code-text);font-family:var(--mono);font-size:1.125rem;line-height:1.65;overflow-x:auto}.pl-pic{flex:0 1 260px;min-width:200px;display:flex;flex-direction:column;align-items:center;gap:10px;font-family:var(--mono);color:var(--ink)}.pl-pic--box{position:relative;height:190px;justify-content:flex-end}.pl-box{position:relative;width:200px;height:140px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:var(--ch-javascript)}.pl-box-lid{position:absolute;top:-18px;left:-14px;right:-14px;height:38px;border-radius:10px;background:#d1a85a;transform:rotate(-5deg)}.pl-box-label{position:relative;padding:6px 12px;border-radius:8px;background:var(--paper);font-weight:600;font-size:1.125rem}.pl-box-value{position:absolute;top:0;right:0;padding:6px 14px;border-radius:var(--pill);background:var(--ch-sql);font-weight:600;font-size:1.125rem}.pl-list-label{align-self:flex-start;padding:4px 10px;border-radius:8px;background:var(--paper);font-weight:600}.pl-shelf{width:100%;display:flex;gap:6px;padding:10px;border-radius:14px;background:var(--ch-javascript)}.pl-shelf-item{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border-radius:10px;background:var(--paper);font-size:0.9375rem;font-weight:600;text-align:center;word-break:break-word}.pl-shelf-index{color:#4a4a52;font-size:0.75rem;font-weight:500}.pl-loop-label{align-self:stretch;padding:8px 12px;border-radius:var(--pill);background:var(--ch-python);font-weight:600;text-align:center}.pl-recipe{width:100%;margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px;counter-reset:pl;font-family:var(--font)}.pl-recipe li{counter-increment:pl;display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:12px;background:var(--paper);font-weight:600}.pl-recipe li::before{content:counter(pl);width:24px;height:24px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--ink);color:var(--paper);font-size:0.8125rem}.pl-pic--loop .pl-recipe li{background:var(--ch-python)}.pl-fork-q{width:100%;padding:12px;border-radius:12px;background:var(--paper);font-family:var(--font);font-weight:700;text-align:center}.pl-fork-ways{width:100%;display:grid;grid-template-columns:1fr 1fr;gap:6px;font-family:var(--font)}.pl-fork-yes,.pl-fork-no{display:flex;flex-direction:column;gap:4px;padding:12px;border-radius:12px;font-weight:600;text-align:center}.pl-fork-yes{background:var(--ch-sql)}.pl-fork-no{background:var(--ch-java)}.pl-fork-ways strong{font-size:0.75rem;text-transform:uppercase;letter-spacing:0.06em}.pl-pic--machine{flex-direction:row;gap:8px}.pl-machine-in,.pl-machine-out{padding:8px 12px;border-radius:var(--pill);background:var(--paper);font-weight:600}.pl-machine{padding:22px 16px;border-radius:16px;background:var(--ch-php);font-weight:700}.pl-speech{padding:18px 22px;border-radius:22px 22px 22px 6px;background:var(--paper);font-family:var(--font);font-size:1.375rem;font-weight:700}.pl-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.pl-option{min-height:72px;padding:10px 16px;border:2px solid var(--border-strong);border-radius:16px;background:var(--surface-2);color:var(--text);font-family:var(--mono);font-size:1.25rem;font-weight:600;white-space:pre-wrap;cursor:pointer;transition:transform 0.14s ease}.pl-option:hover{transform:translateY(-2px)}.pl-option.is-answer{border-color:var(--ch-sql)}.pl-option.is-right{border-color:var(--ch-sql);background:var(--ch-sql);color:var(--ink)}.pl-option.is-wrong{border-color:var(--ch-java);background:var(--ch-java);color:var(--ink)}.pl-feedback{margin:0;padding:16px 18px;border-radius:14px;font-size:1.125rem;line-height:1.5}.pl-feedback[hidden]{display:none}.pl-feedback.is-right{background:color-mix(in srgb,var(--ch-sql) 22%,transparent)}.pl-feedback.is-wrong{background:color-mix(in srgb,var(--ch-java) 22%,transparent)}.pl-run{overflow:hidden;border-radius:18px;background:var(--code-bg)}.pl-run .gw-editor{background:transparent}.pl-run .gw-editor-pre,.pl-run .gw-editor-ta{padding:20px;font-size:1.125rem;line-height:1.7}.pl-run .gw-editor-ta{min-height:120px}.pl-editor{width:100%;box-sizing:border-box;padding:20px;border:0;background:transparent;color:var(--code-text);font-family:var(--mono);font-size:1.125rem;line-height:1.7;resize:vertical}.pl-run-bar{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px 20px;border-top:1px solid rgba(255,255,255,0.08)}.pl-out{flex:1;min-width:0;margin:0;color:#a9a9b3;font-family:var(--mono);font-size:1rem;line-height:1.55;white-space:pre-wrap;word-break:break-word}.pl-out.is-ok{color:var(--ch-sql)}.pl-out.is-error{color:var(--ch-java)}.pl-out.is-off{color:var(--ch-javascript)}.pl-run-go{min-height:48px;padding:0 24px;flex:none;border:0;border-radius:var(--pill);background:var(--lime);color:var(--ink);font:inherit;font-size:1.0625rem;font-weight:700;cursor:pointer}.pl-run-go:disabled{opacity:0.6;cursor:progress}.pl-stage--wide{max-width:1180px}.pl-split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:start}.pl-split-main,.pl-split-side{min-width:0;display:flex;flex-direction:column;gap:12px}.pl-run-label{margin:0;padding:14px 20px 0;color:#a9a9b3;font-size:0.875rem}.pl-run-bar--end{justify-content:flex-end}.pl-page{border-radius:18px;background:var(--surface-2)}.pl-page summary{padding:12px 20px;color:var(--text-muted);font-size:1rem;cursor:pointer}.pl-page .pl-code{border-radius:0 0 18px 18px;font-size:1rem}.pl-frame{overflow:hidden;border-radius:18px;background:#ffffff;color:#08080a}.pl-frame-bar{margin:0;display:flex;align-items:center;gap:8px;padding:10px 14px;background:#e8e8ec;color:#3a3a44;font-size:0.8125rem}.pl-frame-dot{width:10px;height:10px;flex:none;border-radius:50%;background:#c7c7cf}.pl-frame-dot + .pl-frame-dot{margin-right:6px}.pl-frame-view{display:block;width:100%;height:220px;border:0;background:#ffffff;color-scheme:light}.pl-frame-view[hidden]{display:none}.pl-frame-empty{margin:0;padding:72px 24px;color:#6a6a75;font-size:1rem;text-align:center}.pl-frame-empty[hidden]{display:none}.pl-meet-view{flex:1 1 100%}.pl-checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.pl-check{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;background:var(--surface-2);font-size:1.0625rem;line-height:1.4}.pl-check-mark{width:30px;height:30px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--border-strong);color:var(--ink);font-family:var(--mono);font-weight:700}.pl-check.is-pass .pl-check-mark{background:var(--ch-sql)}.pl-check.is-fail .pl-check-mark{background:var(--ch-java)}.pl-check-say code{font-family:var(--mono);font-size:0.9em;color:var(--ch-typescript)}.pl-skipped{margin:0;padding:16px 18px;border-radius:14px;background:color-mix(in srgb,var(--ch-java) 18%,transparent);font-size:1.0625rem;line-height:1.5}.pl-skipped[hidden],.pl-peek[hidden]{display:none}.pl-peek-go{min-height:44px;padding:0 18px;border:2px solid var(--border-strong);border-radius:var(--pill);background:transparent;color:#f3f3f5;font:inherit;font-size:0.9375rem;font-weight:700;cursor:pointer}.pl-peek{display:flex;flex-direction:column;gap:10px;padding:16px 20px;border-radius:18px;background:var(--surface-2);overflow-x:auto}.pl-peek-label,.pl-result-label{margin:0;color:var(--text-muted);font-size:0.9375rem}.pl-result{display:flex;flex-direction:column;gap:12px;min-height:200px;padding:16px 20px;border-radius:18px;background:var(--code-bg);color:var(--code-text)}.pl-result .pl-result-label{color:#a9a9b3}.pl-result .pl-out{padding:0}.pl-result-body{display:flex;flex-direction:column;gap:12px;overflow-x:auto}.pl-result-empty{margin:0;color:#a9a9b3;font-size:1.0625rem;line-height:1.5}.pl-table{width:100%;border-collapse:collapse;font-family:var(--mono);font-size:1rem}.pl-table th{padding:10px 12px;background:color-mix(in srgb,var(--ch-sql) 18%,transparent);color:var(--ch-sql);text-align:left;font-weight:600}.pl-table td{padding:10px 12px;border-bottom:1px solid rgba(255,255,255,0.08)}.pl-peek .pl-table td{border-bottom-color:var(--border-strong)}.pl-table--pic{width:auto;border-radius:12px;overflow:hidden;background:var(--paper);color:var(--ink);font-size:0.9375rem}.pl-table--pic th{background:var(--ch-sql);color:var(--ink)}.pl-table--pic td{border-bottom-color:rgba(8,8,10,0.12)}.pl-console{display:flex;flex-direction:column;gap:6px;padding:14px 20px;border-radius:18px;background:var(--code-bg);color:var(--code-text)}.pl-console-label{margin:0;color:#a9a9b3;font-size:0.875rem}.pl-console .pl-out.is-ok{color:var(--code-text)}.pl-did{margin:0;color:var(--text-muted);font-size:0.9375rem;line-height:1.5}.pl-did[hidden]{display:none}.pl-meet-view--page{display:flex;flex-direction:column;gap:12px}.ck-console{margin:0 20px 20px;border:1px solid rgba(255,255,255,0.08)}.ck-frame{margin:12px 20px 20px}.ck-page{margin:12px 20px 0}.pl-explain{margin:0;padding:16px 18px;border-radius:14px;background:color-mix(in srgb,var(--ch-java) 18%,transparent);font-size:1.125rem;line-height:1.5}.pl-explain[hidden]{display:none}.pl-hints{display:flex;flex-direction:column;align-items:flex-start;gap:10px}.pl-hint-go{min-height:48px;padding:0 20px;border:2px solid var(--ch-php);border-radius:var(--pill);background:transparent;color:var(--text);font:inherit;font-size:1rem;font-weight:700;cursor:pointer}.pl-hint-list{list-style:none;margin:0;padding:0;width:100%;display:flex;flex-direction:column;gap:8px}.pl-hint-list li{padding:14px 16px;border-left:6px solid var(--ch-php);border-radius:12px;background:var(--surface-2);font-size:1.0625rem;line-height:1.5}.pl-hint-list li[hidden]{display:none}.pl-takeaways{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px;counter-reset:tk;font-size:1.25rem;line-height:1.45}.pl-takeaways li{counter-increment:tk;display:flex;gap:14px}.pl-takeaways li::before{content:counter(tk);color:var(--ch-sql);font-weight:800}.pl-new-words{display:flex;flex-direction:column;gap:12px;padding:20px;border-radius:18px;background:var(--surface-2)}.pl-new-words-label{margin:0;color:var(--text-muted);font-size:0.9375rem}.pl-new-words ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}.pl-new-words li{padding:8px 14px;border-radius:var(--pill);background:var(--lime);color:var(--ink);font-family:var(--mono);font-size:1rem}.pl-saved{margin:0;color:var(--text-muted);font-size:1rem}.pl-saved a{color:var(--text)}.pl-bottom{position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px var(--gutter);background:var(--bg);border-top:1px solid var(--border)}.pl-back{min-height:52px;padding:0 22px;border:2px solid var(--border-strong);border-radius:var(--pill);background:transparent;color:var(--text);font:inherit;font-size:1.0625rem;font-weight:700;cursor:pointer}.pl-back[hidden]{visibility:hidden;display:inline-flex}.pl-count{margin:0;color:var(--text-muted);font-size:0.9375rem}.pl-next{min-height:52px;padding:0 28px;display:inline-flex;align-items:center;border:0;border-radius:var(--pill);background:var(--lime);color:var(--ink);font:inherit;font-size:1.0625rem;font-weight:700;text-decoration:none;cursor:pointer}.pl-next:hover{color:var(--ink);text-decoration:none}.pl-next[aria-disabled="true"]{background:var(--surface-2);color:var(--text-muted)}.pl-next[hidden]{display:none}.pl :focus-visible{outline:3px solid var(--lime);outline-offset:2px}html[data-theme="light"] .pl-term,html[data-theme="light"] .pl-def strong,html[data-theme="light"] .pl-kind{color:var(--lime-deep)}html[data-theme="light"] .pl-def{border-left-color:var(--lime-deep)}html[data-theme="light"] .pl :focus-visible,html[data-theme="light"] .lv :focus-visible{outline-color:var(--ink)}.ck-work{display:flex;flex-direction:column;gap:32px;padding:56px var(--gutter) 80px}.ck-work[hidden],.ck-win[hidden]{display:none}.ck-intro{display:flex;flex-direction:column;gap:12px;max-width:72ch}.ck-kicker{margin:0;color:var(--text-muted);font-size:1rem}.ck-kicker a{color:var(--text)}.ck-title{margin:0;font-size:clamp(3.25rem,7vw,7rem);font-weight:800;letter-spacing:-0.05em;line-height:0.88}.ck-brief{margin:0;color:var(--text-muted);font-size:1.25rem;line-height:1.5}.ck-passed{margin:0;padding:12px 16px;border-radius:12px;background:color-mix(in srgb,var(--ch-sql) 20%,transparent);font-size:1.0625rem}.ck-grid{display:flex;flex-wrap:wrap;gap:24px}.ck-run{flex:3 1 520px;min-width:0;display:flex;flex-direction:column}.ck-run .pl-out{padding:14px 20px;border-top:1px solid rgba(255,255,255,0.08)}.ck-side{flex:2 1 340px;min-width:0;display:flex;flex-direction:column;gap:10px}.ck-tests{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.ck-test{display:flex;align-items:center;gap:14px;padding:16px;border-radius:16px;background:var(--surface-2)}.ck-test-mark{width:40px;height:40px;flex:none;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--border-strong);color:var(--text);font-family:var(--mono);font-size:0.9375rem;font-weight:700}.ck-test.is-run .ck-test-mark{background:var(--ch-python);color:var(--ink)}.ck-test.is-pass .ck-test-mark{background:var(--ch-sql);color:var(--ink)}.ck-test.is-fail .ck-test-mark{background:var(--ch-java);color:var(--ink)}.ck-test-text{display:flex;flex-direction:column;gap:2px}.ck-test-name{font-size:1.0625rem;font-weight:700}.ck-test-skill{color:var(--text-muted);font-size:0.9375rem}.ck-go{min-height:56px;margin-top:6px;padding:0 28px;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:var(--pill);background:var(--lime);color:var(--ink);font:inherit;font-size:1.125rem;font-weight:700;text-decoration:none;cursor:pointer}.ck-go:hover{color:var(--ink);text-decoration:none}.ck-go:disabled{opacity:0.6;cursor:progress}.ck-go--ink,.ck-go--ink:hover{background:var(--ink);color:var(--ch-sql)}.ck-note{margin:0;color:var(--text-muted);font-size:0.9375rem}.ck-win{display:flex;flex-direction:column;align-items:center;gap:28px;padding:64px var(--gutter) 80px;background:var(--ch-sql);color:var(--ink);text-align:center}.ck-win-kicker{margin:0;font-size:1.125rem;font-weight:700}.ck-faces{display:flex;align-items:center;gap:clamp(16px,3vw,48px)}.ck-face{display:flex;align-items:center;justify-content:center}.ck-face--old{width:96px;height:96px;border-radius:26px;background:rgba(8,8,10,0.12);color:var(--ink)}.ck-face--old .face{width:60px;height:60px}.ck-face--new{width:clamp(160px,18vw,240px);height:clamp(160px,18vw,240px);border-radius:48px;background:var(--ink);color:var(--ch-sql);animation:ck-pop 520ms cubic-bezier(0.2,1.2,0.4,1) both}.ck-face--new .face{width:62%;height:62%}.ck-arrow{font-size:2.5rem;font-weight:700}.ck-win-title{margin:0;font-size:clamp(3.75rem,9vw,9.5rem);font-weight:800;letter-spacing:-0.05em;line-height:0.86;outline:none}.ck-win-text{margin:0;max-width:46ch;font-size:1.3125rem;line-height:1.45}.ck-win-stats{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.ck-win-stats li{padding:12px 20px;border-radius:var(--pill);background:var(--ink);color:var(--paper);font-size:1.0625rem}.ck-win-save{margin:0;font-size:1.0625rem}.ck-win-save a,.ck-link{color:var(--ink);font-weight:700}.ck-win-go{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:20px}.ck :focus-visible{outline:3px solid var(--lime);outline-offset:2px}.ck-win :focus-visible{outline-color:var(--ink)}@keyframes ck-pop{0%{transform:scale(0.4) rotate(-12deg);opacity:0}70%{transform:scale(1.08) rotate(3deg);opacity:1}100%{transform:none}}.cp-hero{display:flex;flex-direction:column;gap:32px;padding:56px var(--gutter) 40px;background:var(--c);color:var(--ink)}.cp-hero--start .lv-hero-text{max-width:60ch;font-size:1.0625rem}.cp-hero-top{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px 48px}.cp-name{display:flex;flex-direction:column;gap:18px;min-width:0}.cp-kick{margin:0;display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700}.cp-face{width:32px;height:32px;flex:none}.cp-title{margin:0;font-size:clamp(2.75rem,8.4vw,8.25rem);font-weight:800;letter-spacing:-0.05em;line-height:0.88}.cp-facts{display:flex;flex-wrap:wrap;gap:8px 28px;margin:0;padding:0;list-style:none;font-size:1.125rem}.cp-facts 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.lv-intro{margin-bottom:0}.cp-way{display:flex;flex-direction:column;gap:14px}.cp-way h2{margin:0;font-size:1.5rem;font-weight:800;letter-spacing:-0.03em}.cp-way ol{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.cp-way li{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:0 16px;border-radius:var(--pill);background:var(--surface-2);font-weight:500}.cp-way-n,.cp-n{font-family:var(--mono);color:var(--c);font-variant-numeric:tabular-nums}.cp-way-n{font-size:0.875rem}.cp-unit{display:flex;flex-direction:column;gap:14px;padding-top:18px;border-top:2px solid var(--c)}.cp-unit-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 24px}.cp-unit-kick{margin:0 0 4px;color:var(--text-muted);font-size:0.9375rem}.cp-unit h2{margin:0;font-size:2.125rem;font-weight:800;letter-spacing:-0.04em;line-height:1.02}.cp-unit-can{margin:6px 0 0;color:var(--text-muted);font-size:1.125rem}.cp-unit-meta{margin:0;color:var(--text-muted);font-size:0.9375rem;font-variant-numeric:tabular-nums}.cp-rows{display:flex;flex-direction:column;margin:0;padding:0;list-style:none}.cp-row{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:2px 14px;align-items:baseline;min-height:64px;padding:12px 12px 12px 0;border-bottom:1px solid var(--border);color:var(--text);text-decoration:none}.cp-row:hover{color:var(--text);text-decoration:none}.cp-row:hover .cp-t{text-decoration:underline;text-underline-offset:3px}.cp-n{grid-row:span 2;font-size:0.9375rem}.cp-t{font-size:1.1875rem;font-weight:700;letter-spacing:-0.01em}.cp-m{color:var(--text-muted);font-size:0.875rem;font-variant-numeric:tabular-nums}.cp-s{grid-column:2 / -1;color:var(--text-muted);line-height:1.4}.cp-s code{font-family:var(--mono);font-size:0.9em}.cp-row.is-done .cp-n{width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--ch-sql);color:var(--ink);font-size:0.875rem;font-weight:600}.cp-row.is-here{margin:6px 0;padding-left:12px;border-bottom:0;border-radius:14px;background:var(--surface-2);box-shadow:0 0 0 2px var(--c)}.cp-next{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px 48px;padding:64px var(--gutter);background:var(--c);color:var(--ink)}.cp-next-text{display:flex;flex-direction:column;gap:12px;min-width:0}.cp-next-kick{margin:0;font-size:1.125rem;font-weight:500}.cp-next-title{margin:0;font-size:clamp(2.75rem,6vw,5.5rem);font-weight:800;letter-spacing:-0.05em;line-height:0.9}.cp-next-line{margin:0;max-width:52ch;font-size:1.125rem;line-height:1.45}html[data-theme="light"] .cp-way-n,html[data-theme="light"] .cp-n{color:var(--text-muted)}html[data-theme="light"] .cp-row.is-done .cp-n{color:var(--ink)}@media (max-width: 900px){.lv-tabs{grid-template-columns:1fr}.cp-go{width:100%}.pl-split{grid-template-columns:minmax(0,1fr)}.lv-side{position:static}}@media (max-width: 640px){.lv-tab{padding:14px}.lv-tab-face{width:56px;height:56px}.lv-tab-name{font-size:1.625rem}.lv-unit-head{flex-wrap:wrap}.lv-unit-meta{width:100%;text-align:left;padding-left:70px}.lv-lessons{padding-left:20px}.pl-top{flex-wrap:wrap;gap:12px}.pl-where{order:3;flex-basis:100%}.pl-top{padding-top:12px;padding-bottom:12px}.pl-buddy{flex:1;min-width:0;justify-content:flex-end}.pl-say{max-width:none;padding:8px 12px;font-size:0.875rem}.pl-face{width:44px;height:44px;border-radius:14px}.pl-face .face{width:30px;height:30px}.pl-stage{padding-top:28px}.pl-pic{flex-basis:100%}.ck-faces{gap:12px}.ck-face--old{width:64px;height:64px}}@media (prefers-reduced-motion: reduce){.lv-tab,.pl-dots li,.pl-face,.pl-option{transition:none}.pl-option:hover{transform:none}.ck-face--new{animation:none}}.lv-mark{width:0.62em;height:0.62em;flex:none;display:inline-flex;align-items:center;justify-content:center;border-radius:0.16em;background:var(--ink);color:var(--c);font-family:var(--mono);letter-spacing:0}.lv-mark .lang-glyph{width:60%;height:60%}.pl-crumb{display:flex;align-items:center;gap:8px}.pl-mark{width:22px;height:22px;flex:none;display:inline-flex;align-items:center;justify-content:center;border-radius:7px;background:var(--c);color:#08080a}.pl-mark:empty{display:none}.pl-mark .lang-glyph{width:15px;height:15px}