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#f5f5f7;--color-text-muted: #a1a1a6;--color-border: rgba(255, 255, 255, .14);--color-track: #3a3a3c;--color-accent: #2997ff;--color-accent-fill: #0071e3;--color-accent-fill-hover: #0a84ff;--color-accent-soft: rgba(41, 151, 255, .16);--color-on-accent: #ffffff;--color-positive: #30d158;--color-positive-soft: rgba(48, 209, 88, .16);--color-warning: #ffd60a;--color-warning-soft: rgba(255, 214, 10, .16);--color-negative: #ff6961;--color-candle-up: #30d158;--color-candle-down: #ff5a52;--color-backdrop: rgba(0, 0, 0, .6);--shadow-card: none;--shadow-raised: 0 12px 40px rgba(0, 0, 0, .6)}:root:lang(te),:root:lang(hi),:root:lang(mr),:root:lang(ta),:root:lang(bn){--leading-tight: 1.3;--leading-snug: 1.45;--leading-body: 1.65;--tracking-tight: 0;--weight-heading: 600;--text-2xl: clamp(1.875rem, 1.4rem + 2vw, 2.75rem);--text-3xl: clamp(2.125rem, 1.4rem + 3.2vw, 3.5rem)}:root:lang(ta){--text-2xl: clamp(1.5rem, 1.1rem + 1.6vw, 2rem);--text-3xl: clamp(1.5rem, .95rem + 2.7vw, 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var(--color-accent-soft);outline-offset:2px;border-radius:var(--radius-sm)}.page-header{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:var(--space-4)}.page-header>div:first-child{display:grid;gap:var(--space-1)}.stack{display:grid;gap:var(--space-5);align-content:start}.stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-5);align-items:start}.grid-sidebar{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:var(--space-5);align-items:start}.grid-main{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,2fr);gap:var(--space-5);align-items:start}.lesson{display:grid;gap:var(--space-5)}.lesson-next-link,.lesson-next-end{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-6);border:var(--hairline) solid transparent;border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .lesson-next-link,:root[data-theme=dark] .lesson-next-end{border-color:var(--color-border)}.lesson-next-link{color:inherit;text-decoration:none}.lesson-next-link strong{font-size:var(--text-lg);transition:color var(--duration) var(--ease)}.lesson-next-arrow{display:grid;place-items:center;flex:none;width:var(--control-height);height:var(--control-height);border-radius:var(--radius-pill);background:var(--color-accent-fill);color:var(--color-on-accent);transition:background-color var(--duration) var(--ease)}.lesson-next-link:hover strong{color:var(--color-accent)}.lesson-next-link:hover .lesson-next-arrow{background:var(--color-accent-fill-hover)}.lesson-next-end{flex-wrap:wrap;justify-content:space-between;color:var(--color-text-muted)}.tabbar,.sheet,.sheet-backdrop{display:none}@media (max-width: 64rem){.grid-2,.grid-sidebar,.grid-main{grid-template-columns:1fr}}@media (max-width: 52rem){.app-shell{grid-template-columns:1fr}.sidebar{display:none}.topbar{padding:var(--space-3) var(--space-4) 0}.topbar .brand{display:flex}.topbar-user,.topbar-status,.topbar .btn-label,.select-control svg{display:none}.topbar-actions{flex-wrap:nowrap;gap:0}.topbar .btn-quiet{width:var(--control-height);padding:0}.page{gap:var(--space-5);padding:var(--space-4) var(--space-4) calc(var(--tabbar-height) + var(--space-7) + env(safe-area-inset-bottom))}.stat-grid{grid-template-columns:1fr;gap:var(--space-3)}.tabbar{position:fixed;inset:auto 0 0 0;z-index:20;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));padding:var(--space-1) var(--space-2) calc(var(--space-1) + env(safe-area-inset-bottom));border-top:var(--hairline) solid var(--color-border);background:var(--color-surface)}.tab-item{display:grid;justify-items:center;gap:2px;min-height:calc(var(--tabbar-height) - var(--space-2));padding:var(--space-2) var(--space-1);border:0;border-radius:var(--radius-md);background:transparent;color:var(--color-text-muted);font-size:.6875rem;font-weight:var(--weight-medium);line-height:var(--leading-snug)}.tab-item span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tab-item[aria-current=page],.tab-item[aria-expanded=true]{color:var(--color-accent)}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:15;display:block;border:0;background:var(--color-backdrop)}.sheet{position:fixed;inset:auto var(--space-3) calc(var(--tabbar-height) + var(--space-3) + env(safe-area-inset-bottom)) var(--space-3);z-index:25;display:grid;gap:var(--space-1);padding:var(--space-2);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-raised)}}@media (max-width: 30rem){.lesson-next-link,.lesson-next-end{padding:var(--space-4) var(--space-5)}.lesson-next-link strong{font-size:var(--text-md)}.topbar{gap:var(--space-2)}.topbar .brand{gap:var(--space-2);font-size:1rem}.topbar .brand-mark{width:1.75rem;height:1.75rem}.select-control{padding-inline-start:var(--space-1)}.select-control select{padding-inline-end:0}}@media (max-width: 22.4rem){.topbar .brand-mark{display:none}.topbar .brand{font-size:var(--text-sm)}}.card{display:grid;gap:var(--space-5);align-content:start;min-width:0;padding:var(--space-6);border:var(--hairline) solid transparent;border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .card{border-color:var(--color-border)}.card-inset{background:var(--color-accent-soft);box-shadow:none}.card-header{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:var(--space-1) var(--space-4)}.card-heading{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-2) var(--space-3);flex:1 1 5rem;min-width:0;min-height:var(--control-height)}.card-header>:not(.card-heading){flex:none;max-width:100%;margin-inline-start:auto}.card-header .btn-quiet{margin-inline-end:calc(var(--space-3) * -1)}.card-header .step-dots{align-self:center}.stat{display:grid;align-content:start;min-width:0;gap:var(--space-1);padding:var(--space-5) var(--space-6);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .stat{border:var(--hairline) solid var(--color-border)}.stat-label{font-size:var(--text-sm);font-weight:var(--weight-semibold);color:var(--color-text-muted)}.stat-value{font-size:var(--text-2xl);font-weight:var(--weight-heading);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums}.stat-value.is-compact{font-size:var(--text-xl);line-height:var(--leading-snug);overflow-wrap:anywhere}.stat-hint{color:var(--color-text-muted)}.badge{display:inline-flex;align-items:center;padding:var(--space-1) var(--space-3);border-radius:var(--radius-pill);background:var(--color-track);color:var(--color-text-muted);font-size:var(--text-xs);font-weight:var(--weight-semibold);line-height:var(--leading-snug);white-space:nowrap}.badge-accent{background:var(--color-accent-soft);color:var(--color-accent)}.badge-positive{background:var(--color-positive-soft);color:var(--color-positive)}.badge-warning{background:var(--color-warning-soft);color:var(--color-warning)}.notice{display:flex;align-items:flex-start;gap:var(--space-3);font-size:var(--text-sm);color:var(--color-text-muted)}.notice svg{flex:none;margin-top:.15em}.callout{display:grid;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-radius:var(--radius-md);background:var(--color-surface-muted)}.empty-state{display:grid;justify-items:center;gap:var(--space-3);padding:var(--space-5) var(--space-4);color:var(--color-text-muted);text-align:center}.empty-state-icon{display:grid;place-items:center;width:3.5rem;height:3.5rem;border-radius:var(--radius-pill);background:var(--color-surface-muted)}.row-list{display:grid}.row-list>li+li{border-top:var(--hairline) solid var(--color-border)}.row{display:flex;align-items:center;gap:var(--space-3);width:100%;padding:var(--space-4) 0}.row-button{border:0;background:transparent;text-align:start;transition:opacity var(--duration) var(--ease)}.row-button:hover{opacity:.7}.row-button.is-selected .row-main strong{color:var(--color-accent)}.row-main{display:grid;gap:2px;flex:1;min-width:0}.row-main strong{font-weight:var(--weight-semibold)}.row-main small,.row-meta{font-size:var(--text-sm);color:var(--color-text-muted)}.row-chevron{flex:none;color:var(--color-text-muted)}.change{display:inline-flex;align-items:center;gap:var(--space-1);font-weight:var(--weight-semibold);font-variant-numeric:tabular-nums;white-space:nowrap}.change.is-up{color:var(--color-positive)}.change.is-down{color:var(--color-negative)}.progress{display:grid;gap:var(--space-2)}.progress-header{display:flex;justify-content:space-between;gap:var(--space-3);font-size:var(--text-sm);color:var(--color-text-muted)}.progress-header strong{color:var(--color-text);font-variant-numeric:tabular-nums}.progress-bar{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:block;width:100%;height:.5rem;overflow:hidden;border:0;border-radius:var(--radius-pill);background:var(--color-track);color:var(--color-accent-fill)}.progress-bar::-webkit-progress-bar{background:var(--color-track)}.progress-bar::-webkit-progress-value{border-radius:var(--radius-pill);background:var(--color-accent-fill);transition:inline-size var(--duration) var(--ease)}.progress-bar::-moz-progress-bar{border-radius:var(--radius-pill);background:var(--color-accent-fill)}.step-dots{display:inline-flex;gap:var(--space-2)}.step-dot{width:.5rem;height:.5rem;border-radius:var(--radius-pill);background:var(--color-track)}.step-dot.is-done{background:var(--color-accent-fill)}.checklist{display:grid;gap:var(--space-3)}.checklist li{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-muted)}.checklist li.is-done{color:var(--color-text)}.checklist li.is-done svg{color:var(--color-accent)}.checklist svg{flex:none}.snapshot{display:grid;gap:var(--space-2)}.snapshot-headline{display:flex;align-items:center;gap:var(--space-3)}.snapshot-headline .change{font-size:var(--text-xl);font-weight:var(--weight-heading);letter-spacing:var(--tracking-tight)}.snapshot-headline .change svg{width:1.5rem;height:1.5rem}.snapshot-driver{font-size:var(--text-lg);font-weight:var(--weight-medium)}.reveal{display:grid;gap:var(--space-4);padding-top:var(--space-5);border-top:var(--hairline) solid var(--color-border)}.clue-list{display:grid;gap:var(--space-2);padding-inline-start:var(--space-5);list-style:disc}.trend-chart{display:grid;gap:var(--space-2);padding-top:var(--space-3)}.trend-chart-caption{display:flex;justify-content:space-between;flex-wrap:wrap;gap:var(--space-2);font-size:var(--text-sm);font-weight:var(--weight-semibold)}.trend-chart-caption small{font-weight:var(--weight-regular);color:var(--color-text-muted)}.trend-chart svg{display:block;width:100%;height:7.5rem}.trend-line{fill:none;stroke:var(--color-accent-fill);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.search-form{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:var(--space-4)}.quote{display:grid;gap:var(--space-4)}.quote-summary{display:grid;gap:var(--space-1)}.quote-price{font-size:var(--text-2xl);font-weight:var(--weight-heading);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums}.quote-currency{font-size:var(--text-lg);font-weight:var(--weight-medium);color:var(--color-text-muted);letter-spacing:0}.quote-change{color:var(--color-text-muted)}.concept-visual{display:grid;grid-template-columns:minmax(0,14rem) minmax(0,1fr);align-items:center;gap:var(--space-6)}.viz{display:block;width:100%;height:auto}.concept-visual:has(.viz-wide){grid-template-columns:minmax(0,22rem) minmax(0,1fr)}.viz-unit,.viz-bar{fill:var(--color-track)}.viz-unit.is-accent,.viz-bar.is-accent{fill:var(--color-accent-fill)}.viz-zone{fill:var(--color-accent-soft)}.viz-line{fill:none;stroke:var(--color-text);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}.viz-line.is-muted{stroke:var(--color-text-muted);stroke-dasharray:2 7}.viz-stop{stroke:var(--color-accent-fill);stroke-width:2;stroke-dasharray:7 6;stroke-linecap:round}.viz-point{fill:var(--color-text);stroke:var(--color-surface);stroke-width:3}.viz-point.is-accent{fill:var(--color-accent-fill)}.viz-legend{display:grid;gap:var(--space-3);font-size:var(--text-md)}.viz-legend li{display:flex;align-items:baseline;gap:var(--space-3)}.viz-dot{flex:none;width:.625rem;height:.625rem;border-radius:var(--radius-pill);background:var(--color-text-muted)}.viz-dot.is-accent{background:var(--color-accent-fill)}.choice-question,.choice-fieldset{display:grid;gap:var(--space-5)}.choice-fieldset legend{margin-bottom:var(--space-5)}.situation{padding:var(--space-4) var(--space-5);border-radius:var(--radius-md);background:var(--color-surface-muted)}.choices{display:grid;gap:var(--space-3)}.choice{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);border:var(--hairline) solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:border-color var(--duration) var(--ease),background-color var(--duration) var(--ease)}.choice input{margin-top:.2em}.choice:hover,.choice.is-selected{border-color:var(--color-accent)}.choice.is-selected{background:var(--color-accent-soft)}.choice.is-locked{background:transparent;border-color:var(--color-border);cursor:default}.choice.is-correct{border-color:var(--color-positive)}.choice.is-wrong{border-color:var(--color-negative)}.choice-body{display:grid;gap:var(--space-2);min-width:0}.choice-text{font-weight:var(--weight-medium)}.choice-explanation{display:flex;align-items:flex-start;gap:var(--space-2);font-size:var(--text-sm);color:var(--color-text-muted)}.choice-explanation svg{flex:none;margin-top:.15em}.choice.is-correct .choice-explanation svg{color:var(--color-positive)}.choice.is-wrong .choice-explanation svg{color:var(--color-negative)}.result{display:inline-flex;align-items:center;gap:var(--space-2);font-weight:var(--weight-semibold)}.result.is-correct{color:var(--color-positive)}.result.is-wrong{color:var(--color-negative)}.idea-list{display:grid;gap:var(--space-3)}.idea{display:flex;align-items:flex-start;gap:var(--space-3);cursor:pointer}.idea input{margin-top:.2em}.lesson-message{font-weight:var(--weight-medium)}.lesson-message:empty{display:none}.feedback-ideas{display:grid;gap:var(--space-4)}.feedback-idea{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:var(--space-1) var(--space-3)}.feedback-idea svg{margin-top:.15em;color:var(--color-text-muted)}.feedback-idea.is-covered svg{color:var(--color-accent)}.feedback-idea-text{font-weight:var(--weight-medium)}.feedback-idea-text .badge{margin-inline-start:var(--space-1);vertical-align:middle}.feedback-idea-comment{grid-column:2;font-size:var(--text-sm);color:var(--color-text-muted)}.feedback-list{display:grid;gap:var(--space-2);padding-inline-start:var(--space-5);list-style:disc}.interaction{display:grid;grid-template-columns:minmax(0,14rem) minmax(0,1fr);align-items:center;gap:var(--space-6)}.interaction.no-graphic{grid-template-columns:1fr}.interaction-controls{display:grid;gap:var(--space-5)}.field-row{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-3)}.field-value{font-weight:var(--weight-semibold);font-variant-numeric:tabular-nums}.readout{display:grid;grid-template-columns:repeat(auto-fit,minmax(11rem,1fr));gap:var(--space-4) var(--space-5);margin:0}.readout div{display:grid;grid-template-rows:1fr auto;gap:2px}.readout dt{font-size:var(--text-sm);color:var(--color-text-muted)}.readout dd{margin:0;font-size:var(--text-xl);font-weight:var(--weight-heading);line-height:var(--leading-snug);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums}.readout dd.is-up{color:var(--color-positive)}.readout dd.is-down{color:var(--color-negative)}.readout dd.is-text{font-size:var(--text-md);font-weight:var(--weight-semibold);letter-spacing:0}.viz-guide{stroke:var(--color-text-muted);stroke-width:1.5;stroke-dasharray:4 5}.concept-visual:has(.flow-graphic){grid-template-columns:1fr}.flow-graphic{display:grid;gap:var(--space-3)}.flow{--flow-gap: var(--space-6);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--flow-gap)}.flow-node{position:relative;display:grid;justify-items:center;align-content:start;gap:var(--space-2);padding:var(--space-4) var(--space-2);border-radius:var(--radius-md);background:var(--color-surface-muted);font-size:var(--text-sm);font-weight:var(--weight-medium);text-align:center;transition:background-color var(--duration) var(--ease),color var(--duration) var(--ease)}.flow-node.is-active{background:var(--color-accent-soft);color:var(--color-accent)}.flow-arrow{position:absolute;top:50%;left:calc(100% + var(--flow-gap) / 2);transform:translate(-50%,-50%);color:var(--color-text-muted)}.flow-band{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3);border:var(--hairline) dashed var(--color-border);border-radius:var(--radius-md);font-size:var(--text-sm);color:var(--color-text-muted);text-align:center}.flow-band svg{flex:none}.viz-line.is-accent{stroke:var(--color-accent-fill)}.candle{--candle: var(--color-text)}.candle.is-up{--candle: var(--color-candle-up)}.candle.is-down{--candle: var(--color-candle-down)}.viz-wick{stroke:var(--candle);stroke-width:3;stroke-linecap:round}.viz-candle{fill:var(--candle);stroke:var(--candle);stroke-width:3}.case{scroll-margin-top:var(--space-5)}.choices-compact{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr))}.choice-fieldset:disabled .choice{cursor:default}.choice-fieldset:disabled .choice:not(.is-selected){opacity:.55}.choice-fieldset:disabled .choice.is-selected{border-color:var(--color-accent);background:var(--color-accent-soft)}.clues{display:grid;gap:var(--space-3)}.clue{display:flex;align-items:flex-start;gap:var(--space-4);padding:var(--space-4) var(--space-5);border-radius:var(--radius-md);background:var(--color-surface-muted)}.clue-icon{display:grid;place-items:center;flex:none;width:2.5rem;height:2.5rem;border-radius:var(--radius-pill);background:var(--color-surface);color:var(--color-accent)}.clue-body{display:grid;gap:var(--space-1);flex:1;min-width:0}.clue-headline{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--space-1) var(--space-4);font-size:var(--text-md)}.clue-headline strong{font-weight:var(--weight-semibold)}.clue-headline .change,.clue-value{font-size:var(--text-lg);font-weight:var(--weight-heading);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums}.callout .section-title{display:flex;align-items:center;gap:var(--space-2)}.compare{display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:var(--space-3) var(--space-5);margin:0;padding-block:var(--space-3);border-block:var(--hairline) solid var(--color-border)}.compare dt{font-size:var(--text-sm);color:var(--color-text-muted)}.compare dd{margin:0;font-weight:var(--weight-semibold)}.disclosure summary{width:fit-content;font-size:var(--text-sm);font-weight:var(--weight-medium);color:var(--color-accent);cursor:pointer}.disclosure summary:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}.disclosure p{margin-top:var(--space-2);max-width:44em}.limits{display:grid;gap:var(--space-3)}.row-top{align-items:flex-start}.note-text{margin-top:var(--space-1);font-size:var(--text-sm);overflow-wrap:anywhere}.signed{font-variant-numeric:tabular-nums;white-space:nowrap}.signed.is-up{color:var(--color-positive)}.signed.is-down{color:var(--color-negative)}.ledger{display:grid;gap:var(--space-2);margin:0}.ledger div{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-4)}.ledger dt{font-size:var(--text-sm);color:var(--color-text-muted)}.ledger dd{margin:0;font-weight:var(--weight-semibold);font-variant-numeric:tabular-nums;text-align:end}.ledger-total{padding-top:var(--space-2);border-top:var(--hairline) solid var(--color-border)}.ledger-total dt{color:var(--color-text);font-weight:var(--weight-semibold)}.disclosure .ledger{margin-top:var(--space-3)}.warning{display:flex;align-items:flex-start;gap:var(--space-3);font-size:var(--text-sm);font-weight:var(--weight-medium)}.warning svg{flex:none;margin-top:.15em;color:var(--color-negative)}.position{display:grid;gap:var(--space-3);padding:var(--space-4) 0}.position .row{padding:0}.position-value{font-size:var(--text-lg);font-variant-numeric:tabular-nums;white-space:nowrap}.plan{display:grid;gap:var(--space-3);margin:var(--space-3) 0 0}.plan dt{font-size:var(--text-sm);color:var(--color-text-muted)}.plan dd{margin:0;overflow-wrap:anywhere}.trade-outcome,.row-end{display:grid;justify-items:end;gap:var(--space-1);flex:none;font-weight:var(--weight-semibold)}.row-end small{font-size:var(--text-xs);font-weight:var(--weight-regular);color:var(--color-text-muted)}.amounts{display:grid;grid-template-columns:repeat(auto-fit,minmax(6rem,1fr));gap:var(--space-3)}.amount{min-height:var(--control-height);padding:var(--space-3) var(--space-4);border:var(--hairline) solid var(--color-border);border-radius:var(--radius-md);background:transparent;font-size:var(--text-lg);font-weight:var(--weight-semibold);font-variant-numeric:tabular-nums;transition:border-color var(--duration) var(--ease),background-color var(--duration) var(--ease)}.amount:hover,.amount.is-selected{border-color:var(--color-accent)}.amount.is-selected{background:var(--color-accent-soft);color:var(--color-accent)}.pay{display:grid;grid-template-columns:minmax(0,14rem) minmax(0,1fr);gap:var(--space-5) var(--space-6);align-items:start;padding-top:var(--space-5);border-top:var(--hairline) solid var(--color-border)}.pay-code{display:grid;gap:var(--space-3);text-align:center}.pay-code figcaption{display:grid;gap:var(--space-1)}.pay-amount{font-size:var(--text-xl);font-weight:var(--weight-heading);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums}.pay-details{display:grid;gap:var(--space-4)}.pay-id{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;-webkit-user-select:all;user-select:all}.qr{width:100%;height:auto;border-radius:var(--radius-md)}.qr-light{fill:var(--color-qr-light)}.qr-dark{fill:var(--color-qr-dark)}.received{display:grid;gap:var(--space-3)}.thanks{padding-top:var(--space-5);border-top:var(--hairline) solid var(--color-border)}a.btn{text-decoration:none}.touch-only{display:none}@media (pointer: coarse){.touch-only{display:inline-flex}}@media (max-width: 40rem){.pay{grid-template-columns:1fr}.pay-code{max-width:16rem;margin-inline:auto}}@media (max-width: 40rem){.card{padding:var(--space-5)}.flow{grid-template-columns:1fr}.flow-node{grid-template-columns:auto minmax(0,1fr);justify-items:start;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);text-align:start}.flow-arrow{top:calc(100% + var(--flow-gap) / 2);left:50%;transform:translate(-50%,-50%) rotate(90deg)}.interaction{grid-template-columns:1fr;gap:var(--space-5)}.interaction .viz{max-width:14rem}.stat{padding:var(--space-4) var(--space-5)}.search-form{grid-template-columns:1fr}.concept-visual,.concept-visual:has(.viz-wide){grid-template-columns:1fr;gap:var(--space-5)}.lesson-text{font-size:var(--text-md)}}.review-ask{display:grid;justify-items:center;gap:var(--space-1);text-align:center}.landing-shell{min-height:100vh;min-height:100dvh}.landing-shell .topbar .brand{display:flex}.landing{display:grid;gap:var(--space-8);width:100%;max-width:var(--content-width);margin:0 auto;padding:var(--space-7) var(--space-7) var(--space-8)}.hero{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:var(--space-7);align-items:center;padding-block:var(--space-6)}.hero-copy{display:grid;gap:var(--space-5);justify-items:start}.hero-title{font-size:var(--text-3xl);font-weight:var(--weight-heading);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight);text-wrap:balance}.hero-lead{font-size:var(--text-lg);line-height:var(--leading-body);color:var(--color-text-muted);max-width:32em}.btn-large{min-height:var(--control-height-large);padding:0 var(--space-6);font-size:var(--text-md);font-weight:var(--weight-semibold)}.hero-chart{display:block;width:100%;height:auto;padding:var(--space-5);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .hero-chart{border:var(--hairline) solid var(--color-border)}.hero-chart-base{stroke:var(--color-border);stroke-width:2;stroke-linecap:round}.landing-section{display:grid;gap:var(--space-5)}.landing-heading{font-size:var(--text-xl);font-weight:var(--weight-heading);line-height:var(--leading-snug);letter-spacing:var(--tracking-tight);text-wrap:balance}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.feature{display:grid;align-content:start;gap:var(--space-3);padding:var(--space-6);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .feature{border:var(--hairline) solid var(--color-border)}.feature-icon{display:grid;place-items:center;width:3rem;height:3rem;border-radius:var(--radius-pill);background:var(--color-accent-soft);color:var(--color-accent)}.feature-title{font-size:var(--text-lg);font-weight:var(--weight-semibold);line-height:var(--leading-snug)}.feature p{color:var(--color-text-muted)}.promise-list{display:grid;gap:var(--space-4);font-size:var(--text-lg);line-height:var(--leading-snug)}.promise-list li{display:flex;align-items:flex-start;gap:var(--space-3)}.promise-list svg{flex:none;margin-top:.2em;color:var(--color-accent)}.story{max-width:var(--reading-width);margin-inline:auto;padding:var(--space-7);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .story{border:var(--hairline) solid var(--color-border)}.story p{font-size:var(--text-md);line-height:var(--leading-body)}.story-signature{font-weight:var(--weight-semibold)}.landing-close{justify-items:center;text-align:center;padding-block:var(--space-6)}@media (max-width: 60rem){.hero{grid-template-columns:1fr;gap:var(--space-6)}.hero-chart{max-width:30rem}.feature-grid{grid-template-columns:1fr}}@media (max-width: 52rem){.landing{gap:var(--space-7);padding:var(--space-5) var(--space-4) var(--space-7)}.story{padding:var(--space-5)}.promise-list{font-size:var(--text-md)}}.reviews{max-width:var(--reading-width);width:100%;margin-inline:auto;scroll-margin-top:var(--space-5)}.reviews-heading{display:grid;gap:var(--space-3);justify-items:center;text-align:center}.reviews-summary{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--space-2) var(--space-3);color:var(--color-text-muted)}.reviews-empty{text-align:center;color:var(--color-text-muted)}.stars{display:inline-flex;gap:.125rem;flex:none}.star{color:var(--color-track);fill:var(--color-track)}.star.is-on{color:var(--color-accent-fill);fill:var(--color-accent-fill)}.review-list{border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}:root[data-theme=dark] .review-list,:root[data-theme=dark] .review-form{border:var(--hairline) solid var(--color-border)}.review{display:grid;gap:var(--space-3);padding:var(--space-5) var(--space-6)}.review+.review{border-top:var(--hairline) solid var(--color-border)}.review-comment{font-size:var(--text-md);line-height:var(--leading-body)}.review-author{display:flex;flex-wrap:wrap;align-items:baseline;gap:var(--space-1) var(--space-3);font-size:var(--text-sm);color:var(--color-text-muted)}.review-author strong{color:var(--color-text);font-weight:var(--weight-semibold)}.reviews .lesson-message,.reviews-note{text-align:center}.review-form{padding:var(--space-6);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card)}.review-form .lesson-message{text-align:start}.star-field{min-width:0;padding:0;border:0}.star-input{display:flex;gap:var(--space-1)}.star-option{display:grid;place-items:center;width:var(--control-height);height:var(--control-height);border-radius:var(--radius-sm);color:var(--color-text-muted);cursor:pointer}.star-option.is-on{color:var(--color-accent-fill)}.star-option.is-on svg{fill:currentColor}.star-option:has(input:focus-visible){outline:3px solid var(--color-accent-soft);outline-offset:2px}.review-count{justify-self:end}@media (max-width: 52rem){.review,.review-form{padding:var(--space-5) var(--space-4)}}.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5)}.post-card{display:grid;grid-template-rows:1fr auto;gap:var(--space-3);min-width:0;padding-bottom:var(--space-5);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-card);overflow:hidden}:root[data-theme=dark] .post-card{border:var(--hairline) solid var(--color-border)}.post-card-link{display:grid;align-content:start;gap:var(--space-4);color:inherit;text-decoration:none}.post-card-link:focus-visible{outline-offset:-3px;border-radius:var(--radius-lg)}.post-card-cover{display:block;width:100%;aspect-ratio:16 / 9;object-fit:cover;background:var(--color-track)}.post-card-cover-empty{background:var(--color-accent-soft)}.post-card-text{display:grid;gap:var(--space-2);padding-inline:var(--space-5)}.post-card-title{font-size:var(--text-lg);font-weight:var(--weight-semibold);line-height:var(--leading-snug);letter-spacing:var(--tracking-tight)}.post-card-link:hover .post-card-title{color:var(--color-accent)}.post-card-excerpt{color:var(--color-text-muted)}.post-facts{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1) var(--space-3);font-size:var(--text-sm);color:var(--color-text-muted)}.post-card>.post-facts{padding-inline:var(--space-5)}.post{display:grid;gap:var(--space-6);width:100%;max-width:var(--reading-width);margin-inline:auto}.post-header{display:grid;gap:var(--space-3)}.post-cover{display:grid;gap:var(--space-2)}.post-cover img{display:block;width:100%;aspect-ratio:16 / 9;object-fit:cover;border-radius:var(--radius-lg);background:var(--color-track)}.prose{display:grid;gap:var(--space-5);font-size:var(--text-md);line-height:var(--leading-body)}.prose h2{margin-top:var(--space-4);font-size:var(--text-xl);font-weight:var(--weight-heading);line-height:var(--leading-snug);letter-spacing:var(--tracking-tight)}.prose h3,.prose h4{margin:var(--space-2) 0 0;font-size:var(--text-lg);font-weight:var(--weight-semibold);line-height:var(--leading-snug)}.prose ul,.prose ol{display:grid;gap:var(--space-2);padding-inline-start:var(--space-5)}.prose ul{list-style:disc}.prose ol{list-style:decimal}.prose li>ul,.prose li>ol{margin-top:var(--space-2)}.prose li::marker{color:var(--color-text-muted)}.prose a{color:var(--color-accent);text-decoration:underline;text-underline-offset:.15em}.prose blockquote{margin:0;padding:var(--space-4) var(--space-5);border-inline-start:3px solid var(--color-accent-fill);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text-muted)}.prose code{padding:.1em .35em;border-radius:var(--radius-sm);background:var(--color-track);font-size:.9em}.prose hr{width:100%;margin:0;border:0;border-top:var(--hairline) solid var(--color-border)}.admin-row{flex-wrap:wrap}.admin-body{min-height:24rem;font-size:var(--text-sm)}.admin-preview{padding:var(--space-5);border:var(--hairline) solid var(--color-border);border-radius:var(--radius-md);background:var(--color-bg)}@media (max-width: 60rem){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 40rem){.post-grid{grid-template-columns:1fr}}