.code-mesh{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:-1;contain:strict;user-select:none;background-image:repeating-linear-gradient(90deg,transparent 0,transparent 79px,rgba(90,80,69,.035) 79px,rgba(90,80,69,.035) 80px),repeating-linear-gradient(0deg,transparent 0,transparent 79px,rgba(90,80,69,.035) 79px,rgba(90,80,69,.035) 80px)}
.code-mesh span{position:absolute;left:calc(3% + var(--i)*12%);top:calc(6% + var(--i)*11%);font:11px ui-monospace,monospace;white-space:nowrap;color:rgba(90,80,69,.13);transform:rotate(-9deg);animation:meshDrift 24s ease-in-out infinite alternate;animation-delay:calc(var(--i)*-3s)}
@keyframes meshDrift{to{translate:-28px 44px;opacity:.45}}
body{isolation:isolate}.lp .hero2{position:relative}.lp .manifesto,.lp .tracks-section,.lp .method-section,.lp .xp,.lp .cta{background:rgba(250,246,238,.82)}
button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent}button:disabled{cursor:not-allowed}input:disabled,textarea:disabled{background:var(--soft);color:var(--muted)}input[data-touched]:invalid:not(:focus){border-color:var(--bad)}
input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--acc2);outline-offset:3px}button:focus-visible,a:focus-visible{outline:3px solid var(--ink);outline-offset:4px}
button:active:not(:disabled),a.btn:active{translate:0 1px}.tap-feedback{animation:tapFeedback .22s ease-out}@keyframes tapFeedback{50%{scale:.975}}
.card{position:relative}.card:focus-within{border-color:var(--field)}.chip{font-variant-numeric:tabular-nums}.ring b,.live b,.stat b{font-variant-numeric:tabular-nums}.pd{line-height:1.4;letter-spacing:.035em}.step .go{white-space:nowrap}.step:disabled .go{display:none}
.field input{transition:border-color .18s,outline-color .18s,background-color .18s}.seg button[aria-pressed=true]:after{content:' ✓';font-size:11px}.chips button[aria-pressed=true]{position:relative}.sym button{transition:background-color .12s,translate .12s}.sym button:active{translate:0 2px}
.sheet[role=dialog]{border-top:3px solid var(--acc)}.sheet[role=dialog]>.big{letter-spacing:-1px}.sheet button{min-height:46px}.err:not(:empty){padding:8px 10px;background:#fff1eb;border-left:3px solid var(--bad);border-radius:4px}.err:empty{padding:0}
#toast{max-width:calc(100vw - 36px);line-height:1.5;border:1px solid var(--ink)}details[open]>summary{padding-bottom:12px;border-bottom:1px solid var(--line)}details[open]>.stack{animation:enterView .22s ease-out}
@media(max-width:699px){.code-mesh{background-size:80px 80px}.code-mesh span:nth-child(n+5){display:none}.code-mesh span{animation:none;font-size:9px;color:rgba(90,80,69,.08)}#content[data-view=me] .chips button{padding:0 12px}#content[data-view=me] .card{max-width:100%;overflow-wrap:anywhere}}
@media(prefers-reduced-motion:reduce){.code-mesh span,.tap-feedback{animation:none!important;translate:none!important}html{scroll-behavior:auto!important}}

button[aria-busy=true]{cursor:wait;opacity:.65}button[aria-busy=true]:after{content:"";display:inline-block;width:10px;height:10px;margin-left:8px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:workingSpin .7s linear infinite}@keyframes workingSpin{to{rotate:360deg}}
.ring .fg{animation:ringArrive .7s cubic-bezier(.2,.7,.2,1)}@keyframes ringArrive{from{stroke-dashoffset:283}}.bar i{transition:width .4s ease-out}.sheet .big{animation:gainArrive .45s cubic-bezier(.18,.8,.2,1)}@keyframes gainArrive{from{transform:translateY(12px) scale(.95)}to{transform:none}}
.sheet .res>div{border-left:1px solid var(--line);padding-left:18px}.sheet .res>div:first-child{border:0;padding-left:0}.sheet .res b{font-variant-numeric:tabular-nums}.step.done .n{border:1px solid var(--acc2)}.codebox:focus-within,.wbox:focus-visible{outline:2px solid var(--ink);outline-offset:4px}.tabs a[aria-current=page] svg{stroke-width:2.3}.track-card:focus-visible{outline-offset:5px}
@media(hover:hover){.motion-toggle:hover{color:var(--ink);border-color:var(--ink)}.lnav nav a:hover,.lfoot nav a:hover{text-decoration:underline;text-underline-offset:5px}.rail-link:hover{text-decoration:underline;text-underline-offset:4px}}
@media(prefers-reduced-motion:reduce){.ring .fg,.sheet .big{animation:none}.bar i{transition:none}}

.motion-toggle{min-height:40px}@media(max-width:699px){.motion-toggle{min-height:44px}}
@media(min-width:1050px){#content[data-view=me]>.stack>.motion-toggle{grid-column:2;grid-row:3;align-self:start}#content[data-view=me]>.stack>details{grid-column:2;grid-row:4}#content[data-view=me] #out{grid-column:1;grid-row:4;align-self:start}}
.goal-control{display:block}.goal-control>span:first-child{display:flex;align-items:center;justify-content:space-between;font-weight:700}.goal-control output{font-size:20px;color:var(--accent-text,#b83c0c)}input[type=range]{width:100%;padding:0;margin:18px 0 10px;accent-color:var(--acc);height:28px;min-height:28px;border:0;box-shadow:none;background:transparent;cursor:pointer}.range-ends{display:flex;justify-content:space-between;color:var(--muted)}.week-open{display:block;width:100%;border:0;background:none;padding:0;color:var(--ink);text-align:left;border-radius:8px}.week-open .week{display:flex}.week-open .week>span{flex:1;text-align:center;font-size:11px;color:var(--muted)}.week-open .week i{display:block;height:32px;margin:0 3px 7px;border-radius:8px}.calendar-hint{display:block;margin-top:10px;font-size:12px;color:#b83c0c}.calendar-sheet{max-height:94dvh;overflow:auto;z-index:60;width:min(620px,100%)}.calendar-header,.calendar-nav{display:flex;align-items:center;justify-content:space-between;gap:12px}.calendar-header{margin-bottom:14px}.calendar-header button,.calendar-nav button{width:44px;height:44px;flex:none;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font-size:22px}.calendar-nav h3{font-size:18px}.calendar-sheet>.mut{margin:10px 0}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px}.calendar-weekday{text-align:center;font-size:12px;padding:6px}.calendar-day{aspect-ratio:1;min-width:0;display:flex;flex-direction:column;justify-content:center;align-items:center;border:1px solid #d6cbb8;border-radius:8px;color:#211d18}.calendar-day small{font-size:10px;margin-top:4px;white-space:nowrap}.calendar-day.is-today{outline:2px solid var(--ink);outline-offset:-3px}.calendar-key{display:flex;align-items:center;justify-content:flex-end;gap:7px;margin-top:14px;font-size:11px}.calendar-key i{width:18px;height:18px;border:1px solid #d6cbb8;border-radius:4px}.calendar-note{font-size:12px!important;line-height:1.5}.calendar-sheet h2,.calendar-sheet h3{margin:0}.calendar-nav button:disabled{opacity:.35;cursor:default}@media(min-width:1050px){#content[data-view=me]>.stack>details{grid-column:2;grid-row:3}#content[data-view=me] #out{grid-column:1;grid-row:4}}@media(max-width:399px){.calendar-sheet{padding:18px 12px}.calendar-day small{font-size:9px}.calendar-grid{gap:3px}}
.calendar-key i:last-of-type{background:#e8501a!important}.calendar-day b{font-size:14px}.calendar-sheet{background:#fffdfa!important;box-shadow:0 0 0 100vmax #211d1833}.week-open:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
.calendar-backdrop{position:fixed;inset:0;z-index:59;background:#211d1833}.calendar-sheet{box-shadow:none}[data-calendar]{cursor:pointer}.calendar-sheet{padding-bottom:max(20px,env(safe-area-inset-bottom))}
.calendar-day{color:#1a1612}.calendar-day small{font-weight:500}.calendar-day{overflow:hidden}
.calendar-min-header{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:22px}.calendar-min-header h2{font-size:18px;flex:1;text-align:center}.calendar-min-header button{width:40px;height:40px;border:0;border-radius:10px;background:transparent;font-size:20px;flex:none}.calendar-min-header button:disabled{opacity:.3;cursor:default}.calendar-min-header .calendar-close{width:32px;font-size:18px}.calendar-day{border:0;outline:0!important;border-radius:10px;aspect-ratio:1}.calendar-grid{gap:8px}.calendar-sheet{width:min(440px,100%);padding:24px}.calendar-sheet .calendar-grid{margin-bottom:8px}.calendar-sheet{max-height:90dvh}.calendar-day:empty{display:block}
@media(min-width:1050px){.sheet.calendar-sheet{left:50%!important;right:auto!important;transform:translateX(-50%)!important;width:440px!important;margin:0!important}}

.btn:not(.alt){border-color:#cf6743}.btn:not(.alt):active{background:#f5a583;border-color:#cf6743}.btn:disabled{opacity:1;color:var(--muted);background:#f5d8c9;border-color:#d5a68f;cursor:default}
.btn:not(.alt):hover{background:#f3a17b;border-color:#cf6743}
/* Preserve code words where a space offers a natural wrap point. */
.codebox{word-break:normal;overflow-wrap:anywhere}@media(max-width:599px){.codebox{font-size:14px;line-height:1.7;padding:12px}}
.codebox{height:auto;min-height:96px;overflow:visible}.codebox #cc{display:block}.codebox textarea{height:100%}@media(min-width:1050px){.codebox{min-height:320px}}
.codebox{height:max-content;align-self:start;min-height:max-content}.lb{grid-auto-rows:max-content}
/* Keep narrow phones within the reading width, including long course names. */
#content>.stack{min-width:0}.stack>*{min-width:0}.grow{min-width:0}.leaderboard-section>.row,.own-rank{flex-wrap:wrap}.topic-row .row{align-items:flex-start}.topic-row .row>b{min-width:0;overflow-wrap:anywhere}.topic-row .row>span{flex:none}@media(max-width:359px){.hero{gap:12px}.hero .ring{width:88px;height:88px}.hero .ring svg{width:88px;height:88px}.hero h2{font-size:18px}.hero .stat{gap:14px}.analytics-head{align-items:flex-start}.analytics-ranges{width:100%;max-width:180px}.metric-grid{grid-template-columns:1fr}.own-rank{gap:8px}}
.week{min-width:0;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}.week .t{min-width:0}.week .t i{max-width:100%;box-sizing:border-box}
/* Object pass 1: deliberate controls, no decorative direction glyphs. */
.ui-icon{display:inline-block;width:24px;height:24px;flex:none;fill:none;stroke:currentColor;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}.calendar-min-header button,.x{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:1px solid var(--line);background:var(--soft);color:var(--acc2)}.calendar-min-header button:disabled{opacity:.35}.btn{border-color:#cf6743;font-weight:700;letter-spacing:.005em;transition:background-color .16s,border-color .16s,transform .16s}.btn.alt{border-color:var(--line)}.btn:not(.alt){background:#f08a61;color:#211d16}.btn:disabled{background:var(--soft);border-color:var(--line);color:var(--muted);opacity:1}.tabs a svg{stroke-width:2.4}.tabs a[aria-current=page] svg{stroke-width:2.8}.tabs a[aria-current=page]{background:var(--soft)}.tabs a{border-radius:10px}.nl{display:inline-block;width:0}.codebox:focus-within{outline:3px solid #cf6743;outline-offset:4px}.codebox{border-color:var(--line)}.codebox .cur{border-bottom:3px solid var(--acc2)}.card{transition:border-color .16s,background-color .16s}.prac>.ui-icon{color:var(--acc2);background:var(--soft);border-radius:10px;width:36px;height:36px;padding:7px}.btn:focus-visible{outline-color:var(--acc2)}.tabs a:focus-visible{outline-offset:-4px}.tabs a[aria-current=page]{color:var(--acc2)}.btn.small{min-height:44px}.back{min-height:44px}.led .r{align-items:flex-start}.led .r>b{font-size:12px;flex:none;color:var(--muted)}
@media(hover:hover){.btn:not(:disabled):hover{background:#ee986f;border-color:#b95b3b}.btn.alt:not(:disabled):hover{background:var(--soft);border-color:#c3aa8c}.card.prac:hover,.step:not(:disabled):hover,.prow:not(.locked):hover{background:#fff8ec;border-color:#cf9a76}.tabs a:hover{background:#f3ebdb}}
@media(prefers-reduced-motion:reduce){.btn,.card{transition:none}}
@media(min-width:1050px){.sheet.calendar-sheet{top:50%;bottom:auto;transform:translate(-50%,-50%)!important;animation:calendarReveal .2s ease-out;max-height:calc(100dvh - 48px)}}@keyframes calendarReveal{from{opacity:0;scale:.97}to{opacity:1;scale:1}}@media(prefers-reduced-motion:reduce){.sheet.calendar-sheet{animation:none}}
/* Daily target: a quiet, tactile range, not a heavy browser-default track. */
.goal-control input[type=range]{appearance:none;-webkit-appearance:none;background:transparent;width:100%;height:44px;margin:6px 0 0;cursor:pointer;accent-color:#f08a61}.goal-control input[type=range]::-webkit-slider-runnable-track{height:8px;background:#e3d9c6;border-radius:20px}.goal-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:24px;height:24px;margin-top:-8px;border:3px solid #fffdf8;border-radius:50%;background:#cf6743;outline:1px solid #cf6743}.goal-control input[type=range]::-moz-range-track{height:8px;background:#e3d9c6;border-radius:20px}.goal-control input[type=range]::-moz-range-thumb{width:20px;height:20px;border:3px solid #fffdf8;border-radius:50%;background:#cf6743;outline:1px solid #cf6743}.goal-control input[type=range]:focus-visible{outline:2px solid #b83c0c;outline-offset:3px;border-radius:8px}.goal-control output{font-variant-numeric:tabular-nums;font-weight:750}.goal-control .range-ends{color:var(--muted)}.newcard{border-color:#dcc8a9;line-height:1.55}.newcard p+p{margin-top:12px}.newcard .nt{background:var(--soft);color:var(--acc2);font-size:12px;letter-spacing:.03em;text-transform:uppercase}.newcard b{border:0;background:#fffdf8;padding:2px 5px;border-radius:5px}.calendar-sheet{border-radius:20px 20px 0 0}@media(min-width:1050px){.sheet.calendar-sheet{border-radius:20px}}.tabs a,.x,.calendar-min-header button{transition:background-color .15s,color .15s}.live{padding-top:8px;color:var(--muted)}.live b{color:var(--ink)}
/* Restore lesson detail to the owner's screenshot; no layout redesign. */
.lesson .newcard{border:1.5px solid #1a1612;line-height:normal}.lesson .newcard .nt{background:#ffc93c;color:#1a1612;font-size:12px;font-weight:700;letter-spacing:normal;text-transform:none}.lesson .newcard b{border:1px solid #d9cdb5;background:#fffdf8;padding:0 5px;border-radius:6px}.lesson .newcard p+p{margin-top:4px}.lesson .codebox:focus-within,.lesson .wbox:focus-visible{outline:2px solid var(--ink);outline-offset:4px}.lesson .codebox .cur{border-bottom:3px solid var(--acc)}.lesson .live{padding-top:0;color:inherit}.lesson .x{border:0}@media(max-width:599px){.lesson .codebox{font-size:15px;line-height:1.65;padding:14px}}
.lesson .newcard p{font-size:15px;line-height:1.35;margin:6px 0 4px}.lesson .context{font-size:14px;line-height:1.4}
@media(max-width:599px){.lesson .lb{padding:8px 18px 16px;gap:14px}.lesson .explain{font-size:16px}.lesson .live{font-size:14px}.lesson .newcard .nt{font-size:12px}.lesson .lh{padding-left:16px;padding-right:16px}}

/* Account form details, scoped away from the lesson screen. */
.auth .field-help{font-size:12px;color:var(--muted);font-weight:400;line-height:1.5;margin-top:-4px}.auth .password-visibility{align-self:flex-start;min-height:44px;margin-top:-8px;padding:6px 0;background:none;border:0;border-radius:4px;color:#b83c0c;font-size:13px;font-weight:650;text-decoration:underline;text-underline-offset:3px}.auth .password-visibility:focus-visible{outline:2px solid #b83c0c;outline-offset:3px}

#content[data-view=home] .streak-guide{font-size:13px;color:var(--muted);padding:0 4px}#content[data-view=home] .streak-guide summary{min-height:44px;display:list-item;padding:12px 0;cursor:pointer;color:#b83c0c;font-weight:650}#content[data-view=home] .streak-guide p{line-height:1.6;margin:8px 0}#content[data-view=home] .streak-guide[open]{padding-bottom:8px}
#content[data-view=learn] [id^=course-level-]{scroll-margin-top:24px}

#content[data-view=learn] .step.lock{opacity:1;background:#f5f0e7;color:#655d52}#content[data-view=learn] .step.lock small{color:#6f6457}#content[data-view=learn] .step.lock .n{color:#776655;background:#ebe3d5}
/* Keep the centred desktop lesson and its focus ring inside the scroll viewport. */
@media(min-width:1050px){.lesson .lb{padding-left:8px;padding-right:8px;scrollbar-gutter:stable both-edges}.lesson .lb>*{min-width:0}}
#content[data-view=me]>.stack>.card:first-child .grow{min-width:0;overflow-wrap:anywhere}#content[data-view=me]>.stack>.card:first-child>div:last-child{flex:none}

/* Weekly squares must fit inside each of the seven equal-width cells. */
.week-open .week i{width:calc(100% - 6px)}
.week-open .week>span{min-width:0}
/* A single centred desktop lesson block, shared by header and learning body. */
@media(min-width:1050px){.lesson .lb{max-width:1046px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.lesson .lh{max-width:1000px;width:calc(100% - 46px)}}
/* Expected output is reference evidence, never a pretend compiler. */
.lesson-output{border:1px solid var(--line);border-radius:14px;background:var(--card);padding:14px;min-width:0}.output-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.output-heading b{font-size:13px}.output-heading span{font-size:11px;color:var(--muted)}.lesson-output pre{font:14px/1.55 ui-monospace,monospace;white-space:pre-wrap;overflow-wrap:anywhere;margin:12px 0;color:var(--ink)}.lesson-output p{font-size:11px;line-height:1.5;color:var(--muted);margin:6px 0}.lesson-output #output-state{font-size:12px}.lesson-output .btn{margin-top:12px}@media(min-width:1050px){.lesson-output{grid-column:2;grid-row:7}.lesson .live{grid-row:6}}
.run-controls{display:flex;align-items:center;gap:12px}.run-controls .btn{width:auto;min-width:72px}.lesson-output pre{min-height:44px;white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0 0}.lesson-output pre:empty{min-height:20px}.lesson-output #output-continue{margin-top:12px}


.dom-preview{width:100%;min-height:340px;border:0;display:block;background:#fffdf8}

.write-codebox{position:relative}.write-codebox .wbox{padding-right:58px}.codebox{padding-top:52px!important}.code-play{position:absolute;top:4px;right:4px;width:44px;height:44px;min-width:44px;min-height:44px;padding:12px;border:0;border-radius:10px;background:transparent;color:#b83c0c;cursor:pointer;display:grid;place-items:center;z-index:3}.code-play svg{width:18px;height:18px;fill:currentColor;stroke:none}.code-play:hover{background:#f2e9d7}.code-play:focus-visible{outline:2px solid #b83c0c;outline-offset:-3px}.code-play[aria-busy=true] svg{visibility:hidden}.code-play[aria-busy=true]:after{content:'';position:absolute;width:15px;height:15px;border:2px solid #dccfbb;border-top-color:#b83c0c;border-radius:50%;animation:play-spin .8s linear infinite}@keyframes play-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.code-play[aria-busy=true]:after{animation:none;border-color:#b83c0c;border-style:dotted}}


/* Output grows only with real output; wide values wrap, long logs scroll. */
.lesson-output{min-height:0;padding:12px 14px}.lesson-output pre{min-height:0!important;max-height:360px;margin:0!important;padding:0!important;white-space:pre-wrap;overflow-wrap:anywhere;overflow:auto}.lesson-output:has(pre:empty){padding:6px 14px;min-height:14px}.lesson-output .output-heading{display:none}

.html-preview{display:block;width:100%;height:320px;border:0;background:white;border-radius:8px}

.lesson-output:has(pre:empty):has(#output-state:empty){border:0;padding:0;min-height:0}

@media(min-width:1050px){.lb:has(#wb)>#fb{grid-column:2;grid-row:6}.lb:has(#wb)>#chk{grid-column:2;grid-row:7}.lb:has(#wb)>.lesson-output{grid-column:2;grid-row:8}}

#save-retry{display:grid;gap:16px}#save-retry .btn{margin-top:0}

.codebox .nl{width:auto;font-size:.72em;color:var(--muted);opacity:.7}.codebox .nl.bad{color:#fff;opacity:1}.type-status{font-size:13px;line-height:1.5;color:var(--muted);margin:0;min-width:0;overflow-wrap:anywhere}.type-status:empty{display:none}@media(min-width:1050px){.lesson .type-status{grid-column:2;grid-row:7}.lesson-output{grid-row:8}}
@media(min-width:1050px){#content[data-view=me]>.stack>#study-reminders{grid-column:2;grid-row:3}#content[data-view=me]>.stack>details:not(#study-reminders){grid-column:2;grid-row:4}#content[data-view=me] #out{grid-column:1;grid-row:4}}

/* The example is a visual guide, never an actual submitted value. */
.ghost-codebox{background:white;border-radius:15px;isolation:isolate}.ghost-codebox #wb{position:relative;z-index:1;background:transparent!important;display:block;resize:vertical}.answer-ghost{position:absolute;inset:0;z-index:0;box-sizing:border-box;white-space:pre-wrap;overflow-wrap:break-word;word-break:normal;overflow:hidden;margin:0!important;border-style:solid;border-color:transparent;color:#99958e;pointer-events:none;border-radius:15px}.ghost-codebox .code-play{z-index:3}

@media(min-width:1050px){.lb:has(#wb)>.ghost-codebox{grid-column:2;grid-row:4}}
.ghost-codebox .answer-ghost{width:100%;height:100%;max-width:none!important;min-height:0!important;line-height:inherit}

/* Keep examples next to the explanation, and scroll without visible bars. */
*{scrollbar-width:none;-ms-overflow-style:none}*::-webkit-scrollbar{width:0!important;height:0!important;display:none}html,.lb{scrollbar-gutter:auto!important}
@media(min-width:1050px){.lb:has(#wb)>.code-example{grid-column:1;grid-row:auto;align-self:start}.lb:has(#wb)>.ghost-codebox{grid-column:2;grid-row:2/6;align-self:start}.lb:has(#wb)>.explain{grid-column:1}.lb:has(#wb)>.newcard{grid-column:1}}