.sd{font-family:var(--sans);color:#1e2b40;position:absolute;inset:0}.sd-tools{background:#fbf8f1;border-bottom:1px solid #1e2b4017;height:62px;position:relative}.sd-toolL,.sd-toolR{gap:6px;display:flex;position:absolute;top:50%;translate:0 -50%}.sd-toolL{left:14px}.sd-toolR{right:14px}.sd-chip{height:30px;font:500 12.5px/1 var(--sans);color:#3b465a;background:#fff;border-radius:9px;align-items:center;padding:0 11px;display:inline-flex;box-shadow:inset 0 0 0 1px #1e2b401f}.sd-tool{color:#3b465a;border-radius:10px;align-content:center;justify-items:center;gap:3px;height:50px;transition:background .2s;display:grid;position:absolute;top:6px}.sd-tool small{font:500 11.5px/1 var(--sans)}.sd-tool[data-hot]{color:#1e2b40;background:#1e2b4014}.sd-canvas{background:#fff;height:calc(100% - 102px);position:relative}.sd-tabs{border-bottom:1px solid #1e2b4014;align-items:flex-end;gap:4px;height:34px;padding:0 16px;display:flex}.sd-tabs span{height:26px;font:500 12.5px/1 var(--sans);color:#636b7f;border-radius:8px 8px 0 0;align-items:center;padding:0 14px;display:inline-flex}.sd-tabs span[data-on]{color:#1e2b40;background:#fbf8f1;box-shadow:inset 0 0 0 1px #1e2b4017}.sd-title{font:600 21px/1 var(--sans);letter-spacing:-.02em;position:absolute;top:52px;left:40px}.sd-table{z-index:3;font:400 14.5px/1 var(--sans);position:absolute}.sd-letters{height:24px;display:flex}.sd-letters span{font:500 11.5px/1 var(--sans);color:#9aa0ae;background:#f6f2ea;place-items:center;display:grid;box-shadow:inset -1px 0 #1e2b4014}.sd-row{height:36px;display:flex}.sd-num{font:500 11.5px/1 var(--sans);color:#9aa0ae;background:#f6f2ea;place-items:center;display:grid;box-shadow:inset 0 -1px #1e2b400f}.sd-cell{background:#fff;align-items:center;padding:0 12px;display:flex;box-shadow:inset -1px -1px #1e2b401a}.sd-cell[data-num]{font-variant-numeric:tabular-nums;justify-content:flex-end}.sd-row[data-head] .sd-cell{background:#fbf8f1;font-weight:600}.sd-select{z-index:4;opacity:0;background:#3a62a81f;border-radius:2px;transition:width 1s cubic-bezier(.45,0,.2,1),height 1s cubic-bezier(.45,0,.2,1),opacity .15s;position:absolute;box-shadow:inset 0 0 0 2px #3a62a8}.sd-select[data-on]{opacity:1}.sd-pop{z-index:8;opacity:0;transform-origin:80px 0;background:#fff;border-radius:16px;transition:opacity .2s,transform .28s cubic-bezier(.22,.68,.24,1);position:absolute;transform:translateY(-6px)scale(.98);box-shadow:0 0 0 1px #1e2b4029}.sd-pop[data-open]{opacity:1;transform:none}.sd-pop:before{content:"";background:#fff;width:14px;height:14px;position:absolute;top:-7px;left:74px;transform:rotate(45deg);box-shadow:-1px -1px #1e2b4029}.sd-popHead{gap:4px;padding:10px 12px 0;display:flex}.sd-popHead span{height:24px;font:500 12px/1 var(--sans);color:#636b7f;border-radius:7px;align-items:center;padding:0 10px;display:inline-flex}.sd-popHead span[data-on]{color:#1e2b40;background:#b6dfe6}.sd-kind{background:#fbf8f1;border-radius:11px;align-content:center;justify-items:center;gap:4px;transition:background .2s,box-shadow .2s;display:grid;position:absolute;box-shadow:inset 0 0 0 1px #1e2b4014}.sd-kind small{font:500 11px/1 var(--sans);color:#3b465a}.sd-kind[data-hot]{background:#e6f4ee;box-shadow:inset 0 0 0 1.5px #29a383}.sd-chart{z-index:3;opacity:0;transition:opacity .3s;position:absolute}.sd-chart[data-shown]{opacity:1}.sd-chartTitle{height:30px;font:600 15px/30px var(--sans);text-align:center}.sd-chart svg{display:block}.sd-tick{font:500 11.5px var(--sans);fill:#636b7f}.sd-bar{fill:#46b4a6;transition:transform .7s cubic-bezier(.22,.68,.24,1);transform:scaleY(0)}.sd-chart[data-shown] .sd-bar{transform:scaleY(1)}@media (prefers-reduced-motion:reduce){.sd-select,.sd-pop,.sd-chart,.sd-bar{transition:none!important}}
.ls{font-family:var(--sans);color:#1e2b40;position:absolute;inset:0}.ls code,.ls pre,.ls kbd{font-family:var(--mono)}.ls-top{background:#f6f0e2;border-bottom:1px solid #1e2b4017;align-items:center;gap:12px;height:48px;padding:0 16px;display:flex}.ls-brand{align-items:center;gap:7px;font-size:15px;display:inline-flex}.ls-brand b{font-weight:600}.ls-brand i{color:#7a8496;font-style:normal;font-weight:500}.ls-crumbs{color:#46536a;gap:8px;font-size:13.5px;display:inline-flex}.ls-crumbs span{color:#9aa0ae}.ls-topR{align-items:center;gap:12px;margin-left:auto;display:inline-flex}.ls-next{color:#46536a;font-size:13.5px;font-weight:500}.ls-btn{appearance:none;height:32px;font:500 13.5px/1 var(--sans);color:#1e2b40;white-space:nowrap;background:#fff;border:0;border-radius:11px;align-items:center;padding:0 13px;display:inline-flex;box-shadow:inset 0 0 0 1px #1e2b402e}.ls-btn--navy{color:#fff;box-shadow:none;background:#1e2b40}.ls-btn--ghost{box-shadow:none;color:#46536a;background:0 0}.ls-btn[data-press]{animation:.42s .75s both ls-press}@keyframes ls-press{0%,to{transform:none}40%{background:#33496a;transform:scale(.95)}}.ls-body{height:calc(100% - 88px);display:flex}.ls-rail{background:#fbf8f1;border-right:1px solid #1e2b4017;flex:none;width:252px;padding:18px 16px}.ls-course{align-items:center;gap:11px;display:flex}.ls-course b{letter-spacing:-.01em;font-size:16.5px;font-weight:600;display:block}.ls-course small{color:#7a8496;margin-top:1px;font-size:12.5px;display:block}.ls-bar{background:#1e2b4014;border-radius:99px;height:7px;margin:14px 0 18px;overflow:hidden}.ls-bar i{background:#46b4a6;border-radius:99px;height:100%;display:block}.ls-railLabel{letter-spacing:.06em;text-transform:uppercase;color:#7a8496;margin:0 0 8px;font-size:11px;font-weight:600}.ls-classes{gap:2px;margin:0 0 16px;padding:0;list-style:none;display:grid}.ls-classes li{color:#46536a;border-radius:10px;align-items:center;gap:10px;height:33px;padding:0 8px;font-size:13px;display:flex}.ls-classes li[data-state=now]{color:#1e2b40;background:#fff;font-weight:500;box-shadow:0 0 0 1.5px #1e2b40}.ls-n{color:#7a8496;background:#fff;border-radius:7px;flex:none;place-items:center;width:22px;height:22px;font-size:11.5px;font-weight:600;display:grid;box-shadow:inset 0 0 0 1px #1e2b401f}.ls-classes li[data-state=done] .ls-n{box-shadow:none;background:#148f48}.ls-classes li[data-state=now] .ls-n{color:#fff;box-shadow:none;background:#1e2b40}.ls-t{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.ls-made{grid-template-columns:1fr 1fr;gap:6px;display:grid}.ls-made span{color:#3b465a;background:#fff;border-radius:9px;align-items:center;gap:6px;height:30px;padding:0 8px;font-size:12px;display:inline-flex;box-shadow:inset 0 0 0 1px #1e2b4017}.ls-main{background:#f6f0e2;flex:1;min-width:0;position:relative;overflow:hidden}.ls-scroll{padding:22px 26px 0;transition:transform .95s cubic-bezier(.45,0,.2,1);position:relative}.ls-eyebrow{letter-spacing:.05em;text-transform:uppercase;color:#7a8496;font-size:11.5px;font-weight:600}.ls-hero{color:#0f2b28;background:#46b4a6;border-radius:24px;padding:26px 28px 22px}.ls-hero .ls-eyebrow{color:inherit;opacity:.72}.ls-hero h2{letter-spacing:-.03em;margin:8px 0 0;font-size:36px;font-weight:400;line-height:1.04}.ls-hero p{opacity:.9;max-width:34em;margin:10px 0 0;font-size:15.5px;line-height:1.45}.ls-toc{flex-wrap:wrap;gap:6px;margin:18px 0 0;padding:0;list-style:none;display:flex}.ls-toc li{color:#1e2b40;background:#ffffffdb;border-radius:9px;align-items:center;gap:6px;height:28px;padding:0 10px 0 7px;font-size:12.5px;display:inline-flex}.ls-sec{background:#fff;border-radius:24px;margin-top:16px;padding:22px 24px;position:relative;box-shadow:0 0 0 1px #1e2b4014}.ls-secHead{align-items:center;gap:12px;margin-bottom:14px;display:flex}.ls-secHead h3{letter-spacing:-.02em;margin:2px 0 0;font-size:21px;font-weight:500;line-height:1.15}.ls-prose{color:#24324a;margin:0 0 14px;font-size:15px;line-height:1.55}.ls-prose code,.ls-task code{background:#1e2b4012;border-radius:6px;padding:1px 5px;font-size:.88em}.ls-prose b{font-weight:600}.ls-trace{grid-template-columns:minmax(0,1fr) 210px;gap:12px;display:grid}.ls-code{background:#fbf8f1;border-radius:16px;padding:10px 0;box-shadow:inset 0 0 0 1px #1e2b4014}.ls-line{align-items:center;height:26px;padding:0 14px;font-size:13.5px;transition:background .25s;display:flex;position:relative}.ls-line[data-on]{background:#ddeff2}.ls-line[data-on]:before{content:"";background:#1e2b40;border-radius:0 3px 3px 0;width:3px;position:absolute;top:3px;bottom:3px;left:0}.ls-ln{color:#9aa0ae;width:22px;font-size:12px;font-family:var(--mono)}.ls-line code{white-space:pre}.ls-vars{grid-template-columns:1fr 1fr;align-content:start;gap:8px;display:grid}.ls-var{background:#fff;border-radius:14px;gap:2px;padding:10px 12px 9px;display:grid;box-shadow:inset 0 0 0 1px #1e2b401f}.ls-var small{font:500 12px/1 var(--mono);color:#7a8496}.ls-var b{font:500 30px/1.1 var(--mono);letter-spacing:-.02em;animation:.4s cubic-bezier(.22,.68,.24,1) both ls-pop}@keyframes ls-pop{0%{opacity:.3;transform:translateY(5px)}to{opacity:1;transform:none}}.ls-test{background:#fff;border-radius:12px;grid-column:1/-1;justify-content:space-between;align-items:center;height:36px;padding:0 12px;font-size:13.5px;display:flex;box-shadow:inset 0 0 0 1px #1e2b401f}.ls-test span{font:600 12.5px/1 var(--sans)}.ls-test[data-ok=true]{background:#e1f1e6;box-shadow:inset 0 0 0 1.5px #148f48}.ls-test[data-ok=true] span{color:#0e7a3b}.ls-test[data-ok=false]{background:#fbe5df;box-shadow:inset 0 0 0 1.5px #c23a1d}.ls-test[data-ok=false] span{color:#c23a1d}.ls-test .ls-mute{color:#9aa0ae;font-weight:500}.ls-out{color:#eef2f7;background:#1e2b40;border-radius:12px;grid-column:1/-1;align-items:center;gap:10px;height:36px;padding:0 12px;display:flex}.ls-out small{font:500 11.5px/1 var(--sans);color:#eef2f799}.ls-out code{font-size:15px;font-weight:600}.ls-say{justify-content:space-between;align-items:center;gap:16px;margin-top:12px;display:flex}.ls-sayText{font-size:15px;font-weight:500;animation:.35s both ls-fade}@keyframes ls-fade{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}.ls-transport{background:#fbf8f1;border-radius:11px;flex:none;align-items:center;gap:8px;padding:4px 10px;display:inline-flex;box-shadow:inset 0 0 0 1px #1e2b4014}.ls-transport i{color:#46536a;font-size:15px;font-style:normal}.ls-transport small{font:500 11.5px/1 var(--mono);color:#7a8496}.ls-tbtn{all:unset;cursor:pointer;border-radius:6px;place-items:center;width:20px;height:20px;display:inline-grid}.ls-tbtn:hover{background:#1e2b4014}.ls-tbtn:hover i{color:#1e2b40}.ls-rowHit{border-radius:inherit;cursor:grab;background:0 0;border:0;margin:0;padding:0;position:absolute;inset:0}.ls-checkRow .ls-btn,.ls-practiceRow .ls-btn--navy{cursor:pointer}.ls-dots{gap:4px;display:inline-flex}.ls-dots span{background:#1e2b4029;border-radius:99px;width:6px;height:6px;transition:width .3s,background .3s}.ls-dots span[data-on]{background:#1e2b40;width:16px}.ls-order{margin:0 0 14px;padding:0;list-style:none;position:relative}.ls-order li{background:#fff;border-radius:13px;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:12px;height:42px;padding:0 14px 0 8px;font-size:15px;transition:top .9s cubic-bezier(.45,0,.2,1),box-shadow .25s,background .25s,transform .25s;display:grid;position:absolute;left:0;right:0;box-shadow:inset 0 0 0 1px #1e2b4029}.ls-order li[data-lift]{z-index:2;transform:scale(1.012);box-shadow:inset 0 0 0 2px #1e2b40}.ls-order li[data-ok]{background:#e1f1e6;box-shadow:inset 0 0 0 1.5px #148f48}.ls-badge{background:#fbf8f1;border-radius:8px;place-items:center;width:26px;height:26px;font-size:12.5px;font-weight:600;display:grid;box-shadow:inset 0 0 0 1px #1e2b401a}.ls-order li[data-ok] .ls-badge{color:#fff;box-shadow:none;background:#148f48}.ls-grip{grid-template-columns:repeat(2,4px);gap:3px;display:grid}.ls-grip i{background:#9aa0ae;border-radius:50%;width:4px;height:4px}.ls-checkRow{align-items:center;gap:14px;min-height:40px;display:flex}.ls-why{color:#24324a;opacity:0;font-size:14px;line-height:1.45;transition:opacity .35s .9s,transform .35s .9s;transform:translate(-4px)}.ls-why b{color:#0e7a3b}.ls-why[data-shown]{opacity:1;transform:none}.ls-why[data-wrong]{transition-delay:0s}.ls-why[data-wrong] b{color:#c2410c}.ls-practice{background:#fbf8f1;border-radius:18px;gap:12px;padding:16px;display:grid;box-shadow:inset 0 0 0 1px #1e2b4014}.ls-practiceHead{align-items:center;gap:12px;display:flex}.ls-task{margin-top:2px;font-size:15.5px;font-weight:500}.ls-pre{color:#eef2f7;white-space:pre;background:#1e2b40;border-radius:13px;margin:0;padding:12px 16px;font-size:13px;line-height:1.6}.ls-practiceRow{align-items:center;gap:8px;display:flex}.ls-opened{color:#0e7a3b;opacity:0;background:#e1f1e6;border-radius:10px;align-items:center;height:30px;padding:0 11px;font-size:13px;font-weight:500;transition:opacity .3s .9s;display:inline-flex}.ls-opened[data-shown]{opacity:1}.ls-hint{color:#7a8496;font-size:13.5px;transition:color .3s 1.2s}.ls-hint[data-hot]{color:#1e2b40}.ls-hint kbd{min-width:20px;height:20px;font:500 11.5px/1 var(--sans);color:#1e2b40;background:#fff;border-radius:6px;place-items:center;margin:0 1px;padding:0 4px;display:inline-grid;box-shadow:inset 0 0 0 1px #1e2b402e}@media (prefers-reduced-motion:reduce){.ls-scroll,.ls-order li,.ls-line,.ls-why,.ls-opened,.ls-hint{transition:none!important}.ls-var b,.ls-sayText,.ls-btn[data-press]{animation:none!important}}
.ld-feat.ld-bd-feat{grid-template-columns:minmax(0,1fr) minmax(0,380px)}.ld-bd-side{align-content:center;gap:14px;display:grid}.ld-bd-stage{min-width:0}.ld-bd-more{justify-self:start;margin-left:16px}.ld-bd-timer{background:var(--cap,var(--ink));transform-origin:0;border-radius:3px 3px 0 0;height:3px;transition-property:transform;transition-timing-function:linear;position:absolute;bottom:0;left:18px;right:18px}@media (min-width:1081px){.ld-bd-feat>.ld-bd-stage{order:-1}}@media (max-width:1080px){.ld-feat.ld-bd-feat{grid-template-columns:minmax(0,1fr)}.ld-bd-side{display:contents}.ld-bd-feat .ld-featList{order:0}.ld-bd-stage{order:1}.ld-bd-more{order:2;justify-self:center;margin-left:0}}@media (max-width:640px){.ld-bd-more{justify-self:stretch}}