:root{--lx-color-grafite-0: #FFFFFF;--lx-color-grafite-15: #F7F2EC;--lx-color-grafite-25: #F7F5F2;--lx-color-grafite-40: #F2EFEA;--lx-color-grafite-50: #EEEAE4;--lx-color-grafite-100: #E4DED6;--lx-color-grafite-200: #CFC7BC;--lx-color-grafite-300: #BDB2A6;--lx-color-grafite-350: #A09588;--lx-color-grafite-400: #8A7F73;--lx-color-grafite-450: #81776B;--lx-color-grafite-500: #62574C;--lx-color-grafite-600: #4A4037;--lx-color-grafite-700: #3D352E;--lx-color-grafite-750: #2B2520;--lx-color-grafite-800: #241E19;--lx-color-grafite-850: #1E1915;--lx-color-grafite-900: #1B1510;--lx-color-grafite-925: #1A1511;--lx-color-grafite-950: #14110E;--lx-color-grafite-975: #0E0B09;--lx-color-grafite-1000: #0C0A08;--lx-color-tangerina-100: #FFE8D9;--lx-color-tangerina-200: #FFA772;--lx-color-tangerina-300: #FF9A5C;--lx-color-tangerina-400: #FF8A45;--lx-color-tangerina-450: #FF7F33;--lx-color-tangerina-460: #FF7A2E;--lx-color-tangerina-500: #F05A0C;--lx-color-tangerina-550: #E8560A;--lx-color-tangerina-600: #B8430A;--lx-color-tangerina-700: #A83B00;--lx-color-tangerina-750: #A33B00;--lx-color-tangerina-800: #6B2600;--lx-color-tangerina-900: #4A2310;--lx-color-petroleo-100: #D2F1EE;--lx-color-petroleo-200: #6FDCD5;--lx-color-petroleo-300: #3FC9C1;--lx-color-petroleo-600: #0E7C7B;--lx-color-petroleo-700: #0B6463;--lx-color-petroleo-800: #0F3D3B;--lx-color-verde-100: #D9F7E3;--lx-color-verde-200: #ADEDC3;--lx-color-verde-300: #74DE9B;--lx-color-verde-400: #3CC873;--lx-color-verde-500: #1EAA58;--lx-color-verde-600: #14834A;--lx-color-verde-700: #126D39;--lx-color-verde-800: #0F532C;--lx-color-framboesa-100: #FCE4EE;--lx-color-framboesa-200: #FF9DBD;--lx-color-framboesa-300: #FF7BA6;--lx-color-framboesa-600: #B42A5E;--lx-color-framboesa-700: #8F1F49;--lx-color-framboesa-800: #5E1230;--lx-color-framboesa-850: #5A1530;--lx-color-ambar-100: #FFEFD1;--lx-color-ambar-200: #FFDB9C;--lx-color-ambar-300: #FFC35C;--lx-color-ambar-400: #FFAA2B;--lx-color-ambar-500: #E88C00;--lx-color-ambar-600: #B86E00;--lx-color-ambar-700: #8F5500;--lx-color-ambar-800: #663D00;--lx-color-ouro-100: #FFF6CC;--lx-color-ouro-200: #FFEA8F;--lx-color-ouro-300: #FFDB4D;--lx-color-ouro-400: #FACB1E;--lx-color-ouro-500: #DDAE00;--lx-color-ouro-600: #A98500;--lx-color-ouro-700: #7D6200;--lx-color-ouro-800: #574500;--lx-stage-bg: #0E0B09;--lx-stage-scrim: #0E0B09A3;--lx-stage-pill: #0E0B09D9;--lx-stage-text: #FFFFFF;--lx-stage-text-secondary: #EEEAE4;--lx-stage-landmark-halo: #0E0B09D9;--lx-stage-landmark-idle: #FFFFFFCC;--lx-stage-landmark-tracking: #6FDCD5;--lx-stage-landmark-ready: #3CC873;--lx-stage-landmark-correct: #74DE9B;--lx-stage-landmark-retry: #FFAA2B;--lx-stage-landmark-reference: #FFA772CC;--lx-stage-guide-idle: #FFFFFFB3;--lx-stage-guide-ok: #74DE9B;--lx-stage-guide-warn: #FFC35C;--lx-stage-surface: #1A1511;--lx-stage-border: #3D352E;--lx-stage-glow-brand: #F05A0C4D;--lx-stage-glow-gold: #FACB1E59;--lx-stage-gold: #FACB1E;--lx-stage-trace: #FF8A45;--lx-league-bronze-fill: #B0703A;--lx-league-bronze-on-fill: #14110E;--lx-league-bronze-edge: #6B4A1F;--lx-league-prata-fill: #A7B2C2;--lx-league-prata-on-fill: #14110E;--lx-league-prata-edge: #6E7A8C;--lx-league-ouro-fill: #E0AE12;--lx-league-ouro-on-fill: #14110E;--lx-league-ouro-edge: #8A6A00;--lx-league-safira-fill: #3460E6;--lx-league-safira-on-fill: #FFFFFF;--lx-league-safira-edge: #1B2768;--lx-league-rubi-fill: #CC2B57;--lx-league-rubi-on-fill: #FFFFFF;--lx-league-rubi-edge: #7A1733;--lx-league-ametista-fill: #7B4FE0;--lx-league-ametista-on-fill: #FFFFFF;--lx-league-ametista-edge: #45288F;--lx-league-diamante-fill: #6FD9E8;--lx-league-diamante-on-fill: #14110E;--lx-league-diamante-edge: #1A7A88;--lx-brand-icon-bg: #1B1510;--lx-brand-icon-bg-dark: #0C0A08;--lx-brand-icon-mark: #FF7A2E;--lx-brand-icon-dot: #FFFFFF;--lx-brand-icon-skin: #A86F4C;--lx-font-family-display: Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-font-family-text: Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-font-weight-regular: 400;--lx-font-weight-semibold: 600;--lx-font-weight-bold: 700;--lx-font-weight-heavy: 800;--lx-font-weight-black: 900;--lx-font-stretch-normal: normal;--lx-font-stretch-semi: semi-expanded;--lx-font-stretch-wide: expanded;--lx-typography-display-xl: 900 expanded 2.5rem/1.05 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-display-xl-size: 2.5rem;--lx-typography-display-xl-weight: 900;--lx-typography-display-xl-line-height: 1.05;--lx-typography-display-xl-tracking: -.8px;--lx-typography-display-xl-stretch: expanded;--lx-typography-display: 900 semi-expanded 2.125rem/1.1 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-display-size: 2.125rem;--lx-typography-display-weight: 900;--lx-typography-display-line-height: 1.1;--lx-typography-display-tracking: -.5px;--lx-typography-display-stretch: semi-expanded;--lx-typography-headline: 900 semi-expanded 1.75rem/1.15 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-headline-size: 1.75rem;--lx-typography-headline-weight: 900;--lx-typography-headline-line-height: 1.15;--lx-typography-headline-tracking: -.3px;--lx-typography-headline-stretch: semi-expanded;--lx-typography-title: 800 semi-expanded 1.375rem/1.2 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-title-size: 1.375rem;--lx-typography-title-weight: 800;--lx-typography-title-line-height: 1.2;--lx-typography-title-tracking: 0px;--lx-typography-title-stretch: semi-expanded;--lx-typography-title-sm: 800 semi-expanded 1.125rem/1.3 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-title-sm-size: 1.125rem;--lx-typography-title-sm-weight: 800;--lx-typography-title-sm-line-height: 1.3;--lx-typography-title-sm-tracking: 0px;--lx-typography-title-sm-stretch: semi-expanded;--lx-typography-body-lg: 400 1.125rem/1.5 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-body-lg-size: 1.125rem;--lx-typography-body-lg-weight: 400;--lx-typography-body-lg-line-height: 1.5;--lx-typography-body-lg-tracking: 0px;--lx-typography-body-lg-stretch: normal;--lx-typography-body: 400 1rem/1.5 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-body-size: 1rem;--lx-typography-body-weight: 400;--lx-typography-body-line-height: 1.5;--lx-typography-body-tracking: 0px;--lx-typography-body-stretch: normal;--lx-typography-body-sm: 400 .875rem/1.45 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-body-sm-size: .875rem;--lx-typography-body-sm-weight: 400;--lx-typography-body-sm-line-height: 1.45;--lx-typography-body-sm-tracking: 0px;--lx-typography-body-sm-stretch: normal;--lx-typography-button: 800 semi-expanded 1.0625rem/1.25 Anybody, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-button-size: 1.0625rem;--lx-typography-button-weight: 800;--lx-typography-button-line-height: 1.25;--lx-typography-button-tracking: 0px;--lx-typography-button-stretch: semi-expanded;--lx-typography-label: 700 1rem/1.25 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-label-size: 1rem;--lx-typography-label-weight: 700;--lx-typography-label-line-height: 1.25;--lx-typography-label-tracking: .2px;--lx-typography-label-stretch: normal;--lx-typography-label-sm: 700 .8125rem/1.25 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-label-sm-size: .8125rem;--lx-typography-label-sm-weight: 700;--lx-typography-label-sm-line-height: 1.25;--lx-typography-label-sm-tracking: .2px;--lx-typography-label-sm-stretch: normal;--lx-typography-caption: 600 .75rem/1.35 Figtree, system-ui, -apple-system, Roboto, sans-serif;--lx-typography-caption-size: .75rem;--lx-typography-caption-weight: 600;--lx-typography-caption-line-height: 1.35;--lx-typography-caption-tracking: .2px;--lx-typography-caption-stretch: normal;--lx-typography-numeric-xl: 900 expanded 3.25rem/1 Anybody, system-ui, -apple-system, 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#00000080;--lx-elevation-dark-3: 0px 12px 32px -8px #000000A6;--lx-opacity-disabled: .38;--lx-opacity-pressed-overlay: .12;--lx-opacity-hover-overlay: .08;--lx-motion-duration-instant: 80ms;--lx-motion-duration-fast: .15s;--lx-motion-duration-base: .25s;--lx-motion-duration-page: .3s;--lx-motion-duration-slow: .4s;--lx-motion-duration-emphasis: .6s;--lx-motion-duration-celebrate: .8s;--lx-motion-duration-ambient: 2.4s;--lx-motion-duration-orbit: 6s;--lx-motion-easing-standard: cubic-bezier(.2, 0, 0, 1);--lx-motion-easing-decelerate: cubic-bezier(0, 0, .2, 1);--lx-motion-easing-accelerate: cubic-bezier(.4, 0, 1, 1);--lx-motion-easing-overshoot: cubic-bezier(.34, 1.56, .64, 1);--lx-motion-easing-linear: cubic-bezier(0, 0, 1, 1);--lx-motion-spring-celebrate: .4s;--lx-motion-spring-unlock: .6s;--lx-motion-spring-crystallize: .2s;--lx-motion-stagger: 70ms;--lx-motion-auto-advance: 1.2s;--lx-z-index-base: 0;--lx-z-index-sticky: 10;--lx-z-index-nav: 100;--lx-z-index-sheet: 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#FF8A45;--lx-game-xp-fill: #FACB1E;--lx-game-xp-text: #FFDB4D;--lx-game-xp-soft: #574500;--lx-game-streak-fill: #FF8A45;--lx-game-streak-text: #FFA772;--lx-game-streak-soft: #4A2310;--lx-game-hand-text: #6FDCD5;--lx-game-hand-soft: #0F3D3B;--lx-game-hand-fill: #3FC9C1;--lx-game-hand-on-fill: #14110E;--lx-game-locked-bg: #2B2520;--lx-game-locked-fg: #BDB2A6;--lx-game-trace-fill: #FF8A45;--lx-game-trace-text: #FFA772;--lx-game-trace-soft: #4A2310;--lx-game-trace-on-soft: #FFE8D9;--lx-brand-ink: #F7F2EC;--lx-brand-mark: #FF8A45;--lx-elevation-1: var(--lx-elevation-dark-1);--lx-elevation-2: var(--lx-elevation-dark-2);--lx-elevation-3: var(--lx-elevation-dark-3);color-scheme:dark}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--lx-bg-canvas: #14110E;--lx-bg-surface: #1E1915;--lx-bg-raised: #241E19;--lx-bg-sunken: #0C0A08;--lx-bg-inverse: #F7F2EC;--lx-bg-scrim: #000000B3;--lx-text-primary: #F7F2EC;--lx-text-secondary: #BDB2A6;--lx-text-tertiary: #A09588;--lx-text-disabled: 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#14110E;--lx-feedback-warning-text: #FFC35C;--lx-feedback-warning-soft: #663D00;--lx-feedback-warning-on-soft: #FFEFD1;--lx-feedback-info-strong: #FF9A5C;--lx-feedback-info-on-strong: #14110E;--lx-feedback-info-text: #FF9A5C;--lx-feedback-info-soft: #4A2310;--lx-feedback-info-on-soft: #FFE8D9;--lx-game-track: #3D352E;--lx-game-progress: #FF8A45;--lx-game-xp-fill: #FACB1E;--lx-game-xp-text: #FFDB4D;--lx-game-xp-soft: #574500;--lx-game-streak-fill: #FF8A45;--lx-game-streak-text: #FFA772;--lx-game-streak-soft: #4A2310;--lx-game-hand-text: #6FDCD5;--lx-game-hand-soft: #0F3D3B;--lx-game-hand-fill: #3FC9C1;--lx-game-hand-on-fill: #14110E;--lx-game-locked-bg: #2B2520;--lx-game-locked-fg: #BDB2A6;--lx-game-trace-fill: #FF8A45;--lx-game-trace-text: #FFA772;--lx-game-trace-soft: #4A2310;--lx-game-trace-on-soft: #FFE8D9;--lx-brand-ink: #F7F2EC;--lx-brand-mark: #FF8A45;--lx-elevation-1: var(--lx-elevation-dark-1);--lx-elevation-2: var(--lx-elevation-dark-2);--lx-elevation-3: var(--lx-elevation-dark-3);color-scheme:dark}}.lx-theme-dark{--lx-bg-canvas: #14110E;--lx-bg-surface: #1E1915;--lx-bg-raised: #241E19;--lx-bg-sunken: #0C0A08;--lx-bg-inverse: #F7F2EC;--lx-bg-scrim: #000000B3;--lx-text-primary: #F7F2EC;--lx-text-secondary: #BDB2A6;--lx-text-tertiary: #A09588;--lx-text-disabled: #62574C;--lx-text-inverse: #14110E;--lx-text-brand: #FF9A5C;--lx-border-subtle: #2B2520;--lx-border-default: #3D352E;--lx-border-strong: #8A7F73;--lx-border-focus: #FF9A5C;--lx-action-primary-bg: #FF7F33;--lx-action-primary-bg-pressed: #FF9A5C;--lx-action-primary-base: #B8430A;--lx-action-primary-fg: #1B1510;--lx-action-secondary-bg: #1E1915;--lx-action-secondary-border: #8A7F73;--lx-action-secondary-fg: #FF9A5C;--lx-action-danger-bg: #FF7BA6;--lx-action-danger-fg: #14110E;--lx-action-disabled-bg: #2B2520;--lx-action-disabled-fg: #62574C;--lx-feedback-success-strong: #3CC873;--lx-feedback-success-on-strong: #14110E;--lx-feedback-success-text: #74DE9B;--lx-feedback-success-soft: #0F532C;--lx-feedback-success-on-soft: #D9F7E3;--lx-feedback-error-strong: #FF7BA6;--lx-feedback-error-on-strong: #14110E;--lx-feedback-error-text: #FF9DBD;--lx-feedback-error-soft: #5A1530;--lx-feedback-error-on-soft: #FCE4EE;--lx-feedback-warning-strong: #FFAA2B;--lx-feedback-warning-on-strong: #14110E;--lx-feedback-warning-text: #FFC35C;--lx-feedback-warning-soft: #663D00;--lx-feedback-warning-on-soft: #FFEFD1;--lx-feedback-info-strong: #FF9A5C;--lx-feedback-info-on-strong: #14110E;--lx-feedback-info-text: #FF9A5C;--lx-feedback-info-soft: #4A2310;--lx-feedback-info-on-soft: #FFE8D9;--lx-game-track: #3D352E;--lx-game-progress: #FF8A45;--lx-game-xp-fill: #FACB1E;--lx-game-xp-text: #FFDB4D;--lx-game-xp-soft: #574500;--lx-game-streak-fill: #FF8A45;--lx-game-streak-text: #FFA772;--lx-game-streak-soft: #4A2310;--lx-game-hand-text: #6FDCD5;--lx-game-hand-soft: #0F3D3B;--lx-game-hand-fill: #3FC9C1;--lx-game-hand-on-fill: #14110E;--lx-game-locked-bg: #2B2520;--lx-game-locked-fg: #BDB2A6;--lx-game-trace-fill: #FF8A45;--lx-game-trace-text: #FFA772;--lx-game-trace-soft: #4A2310;--lx-game-trace-on-soft: #FFE8D9;--lx-brand-ink: #F7F2EC;--lx-brand-mark: #FF8A45;--lx-elevation-1: var(--lx-elevation-dark-1);--lx-elevation-2: var(--lx-elevation-dark-2);--lx-elevation-3: var(--lx-elevation-dark-3);color-scheme:dark}@font-face{font-family:Anybody;src:url(/fonts/Anybody-latin-wdth-wght.woff2) format("woff2-variations"),url(/fonts/Anybody-latin-wdth-wght.woff2) format("woff2");font-weight:100 900;font-stretch:50% 150%;font-style:normal;font-display:swap}@font-face{font-family:Figtree;src:url(/fonts/Figtree-latin-wght.woff2) format("woff2-variations"),url(/fonts/Figtree-latin-wght.woff2) format("woff2");font-weight:300 900;font-style:normal;font-display:swap}:root{--lx-motion-scale: 1;--lx-safe-top: env(safe-area-inset-top, 0px);--lx-safe-right: env(safe-area-inset-right, 0px);--lx-safe-bottom: env(safe-area-inset-bottom, 0px);--lx-safe-left: env(safe-area-inset-left, 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var(--lx-safe-bottom));text-align:center;font:var(--lx-typography-title)}.route-error-btn{max-width:var(--lx-size-content-max)}.screen-skeleton{flex:1;display:flex;flex-direction:column;gap:var(--lx-space-4);width:100%;max-width:var(--lx-size-content-max);margin:0 auto;padding:calc(var(--lx-space-2) + var(--lx-safe-top)) var(--lx-space-4) var(--lx-space-4)}.skeleton-block{position:relative;overflow:hidden;background:var(--lx-bg-sunken);border-radius:var(--lx-radius-md)}.skeleton-block:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,var(--lx-bg-raised),transparent);opacity:.6;transform:translate(-100%);animation:lx-skeleton-shine calc(var(--lx-motion-duration-page) * 5) var(--lx-motion-easing-standard) infinite}@keyframes lx-skeleton-shine{to{transform:translate(100%)}}@media (prefers-reduced-motion: reduce){.skeleton-block:after{animation:none;display:none}}:root[data-reduced-motion=true] 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var(--lx-space-4);border-radius:var(--lx-radius-md);background:var(--lx-bg-inverse);color:var(--lx-text-inverse);font:var(--lx-typography-body-sm);box-shadow:var(--lx-elevation-2)}@media (min-width: 768px){.toast{left:calc(50% + var(--lx-sidebar-w) / 2);bottom:calc(var(--lx-safe-bottom) + var(--lx-space-6))}}.app-layout{display:flex;min-height:100dvh}.main-content{--lx-nav-offset: calc(var(--lx-size-tab-bar) + var(--lx-safe-bottom));flex:1;min-width:0;display:flex;flex-direction:column;min-height:100dvh;padding-bottom:var(--lx-nav-offset);overflow-x:clip}.lesson-screen{display:flex;flex-direction:column;flex:1;min-height:100dvh}.lesson-screen--stage{--lx-bg-canvas: var(--lx-stage-bg);background:var(--lx-bg-canvas);color:var(--lx-text-primary)}.lesson-screen--stage .lesson-topbar{background:var(--lx-stage-bg);border-bottom-color:var(--lx-border-subtle)}.lesson-screen--stage .cam-sign-prompt{color:var(--lx-stage-text-secondary)}.lesson-screen--stage 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var(--lx-border-subtle);box-shadow:var(--lx-elevation-2);z-index:var(--lx-z-index-nav)}.nav-logo{display:none}.nav-item{flex:1;min-width:var(--lx-size-touch-min);min-height:var(--lx-size-touch-min);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--lx-space-1);background:none;border:none;font:var(--lx-typography-label-sm);letter-spacing:var(--lx-typography-label-sm-tracking);color:var(--lx-text-secondary);cursor:pointer;padding:var(--lx-space-1) var(--lx-space-1) 0;transition:color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.nav-item-indicator{display:flex;align-items:center;justify-content:center;width:var(--lx-size-lesson-node);height:calc(var(--lx-size-icon-lg) + var(--lx-space-2));border-radius:var(--lx-radius-full);transition:background-color var(--lx-motion-duration-fast) 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.brand-mark-dot{fill:var(--lx-brand-icon-dot)}.wordmark{display:inline-flex;align-items:center;gap:var(--lx-space-2);width:fit-content;line-height:1}.wordmark-logo{display:inline-flex;align-items:center;gap:calc(var(--wm) * .32)}.beta-badge{position:relative;flex-shrink:0;padding:var(--lx-space-0-5) var(--lx-space-2);border-radius:var(--lx-radius-full);background:var(--lx-game-hand-soft);color:var(--lx-game-hand-text);font:var(--lx-typography-label-sm);white-space:nowrap}.wordmark-text{font-family:var(--lx-font-family-display);font-weight:var(--lx-font-weight-black);font-stretch:var(--lx-font-stretch-wide);font-size:var(--wm);letter-spacing:-.01em;line-height:1;color:var(--lx-brand-ink)}.trace-stroke{stroke:var(--lx-game-trace-fill)}.trace-stroke--hand{stroke:var(--lx-game-hand-fill)}.trace-stroke--muted{stroke:var(--lx-border-strong)}.trace-stroke--stage{stroke:var(--lx-stage-trace)}.trace-stroke--soft{stroke-opacity:.7}.trace-tip--trace{fill:var(--lx-game-trace-fill)}.trace-tip--hand{fill:var(--lx-game-hand-fill)}.trace-tip--muted{fill:var(--lx-border-strong)}.trace-tip--stage{fill:var(--lx-stage-trace)}.trace-start{fill:var(--lx-text-primary)}.hand-sketch{display:block;overflow:visible}.hand-sketch-bone{stroke:var(--lx-text-primary);stroke-width:1.8;stroke-linecap:round}.hand-sketch-joint{fill:var(--lx-text-secondary)}.hand-sketch-joint.is-active{fill:var(--lx-game-trace-fill)}.trace-arrow-icon{flex-shrink:0}.trace-orbit{position:absolute;inset:calc(-1 * var(--lx-space-4));width:calc(100% + 2 * var(--lx-space-4));height:calc(100% + 2 * var(--lx-space-4));overflow:visible;pointer-events:none;animation:lx-spin var(--lx-motion-duration-orbit) linear infinite}@media (prefers-reduced-motion: reduce){.trace-orbit{animation:none}}:root[data-reduced-motion=true] .trace-orbit{animation:none}.trace-burst{display:block;width:100%;max-width:400px;height:auto;overflow:visible}.trace-burst-ray{transform-box:view-box;transform-origin:179px 96px;animation:lx-burst-ray var(--lx-motion-duration-emphasis) var(--lx-motion-easing-overshoot) both;animation-delay:calc(var(--i, 0) * var(--lx-motion-stagger) / 2)}@keyframes lx-burst-ray{0%{opacity:0;transform:scale(calc(1 - .45 * var(--lx-motion-scale, 1)))}to{opacity:1;transform:scale(1)}}.trace-burst-value{font-family:var(--lx-font-family-display);font-weight:var(--lx-font-weight-black);font-stretch:var(--lx-font-stretch-wide);font-size:var(--lx-typography-numeric-xl-size);fill:var(--lx-text-primary)}.trace-burst-unit{font-family:var(--lx-font-family-display);font-weight:var(--lx-font-weight-heavy);font-size:var(--lx-typography-body-size);letter-spacing:2px;fill:var(--lx-game-xp-text)}@media (prefers-reduced-motion: reduce){.trace-burst-ray{animation:none}}:root[data-reduced-motion=true] .trace-burst-ray{animation:none}.welcome-illustration{position:relative;width:100%;height:min(30dvh,240px);border-radius:var(--lx-radius-xl);background:var(--lx-game-trace-soft);overflow:hidden}.welcome-arcs{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.welcome-hand{position:absolute;inset:var(--lx-space-5) 16% var(--lx-space-5) 14%;width:70%;height:calc(100% - 2 * var(--lx-space-5))}.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:var(--lx-space-2);width:100%;min-height:var(--lx-size-button-lg);padding:0 var(--lx-space-6);border:none;border-radius:var(--lx-radius-button);font:var(--lx-typography-button);letter-spacing:var(--lx-typography-button-tracking);text-align:center;text-decoration:none;cursor:pointer;transition:transform var(--lx-motion-duration-instant) var(--lx-motion-easing-standard),box-shadow var(--lx-motion-duration-instant) var(--lx-motion-easing-standard),background-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.btn .icon{width:var(--lx-size-icon-md);height:var(--lx-size-icon-md)}.btn-primary{background:var(--lx-action-primary-bg);color:var(--lx-action-primary-fg);box-shadow:0 3px 0 var(--lx-action-primary-base);margin-bottom:3px}.btn-primary:active:not(:disabled){background:var(--lx-action-primary-bg-pressed);box-shadow:0 1px 0 var(--lx-action-primary-base);transform:translateY(calc(2px * var(--lx-motion-scale, 1)))}.btn-secondary,.btn-ghost{background:var(--lx-action-secondary-bg);color:var(--lx-action-secondary-fg);border:var(--lx-border-width-thick) solid var(--lx-action-secondary-border);min-height:var(--lx-size-button-md)}.btn-secondary:active:not(:disabled),.btn-ghost:active:not(:disabled){transform:scale(calc(1 - .03 * var(--lx-motion-scale, 1)))}.btn-text,.btn-text-muted{background:none;border:none;width:auto;min-height:var(--lx-size-touch-min);padding:0 var(--lx-space-4);color:var(--lx-text-brand);font:var(--lx-typography-label);cursor:pointer}.btn-text:focus-visible{text-decoration:underline}.btn-text-muted{color:var(--lx-text-secondary);font-weight:var(--lx-font-weight-semibold);align-self:center}.btn-wrong,.btn-danger{background:var(--lx-action-danger-bg);color:var(--lx-action-danger-fg)}.btn:disabled,.btn[aria-disabled=true]{background:var(--lx-action-disabled-bg);color:var(--lx-action-disabled-fg);border-color:transparent;box-shadow:none;cursor:not-allowed;transform:none}.btn-sm{width:auto;min-height:var(--lx-size-button-sm);padding:0 var(--lx-space-4);font:var(--lx-typography-label-sm)}.btn-sm:after{content:"";position:absolute;inset:calc((var(--lx-size-button-sm) - var(--lx-size-touch-min)) / 2) 0}.btn-inline{width:auto}.card{background:var(--lx-bg-surface);border-radius:var(--lx-radius-lg);border:var(--lx-border-width-thin) solid var(--lx-border-default);padding:var(--lx-space-5)}.topbar-spacer{flex:1}.topbar-stat{display:flex;align-items:center;gap:var(--lx-space-1);font:var(--lx-typography-label);font-variant-numeric:tabular-nums}.back-btn{flex-shrink:0;width:var(--lx-size-touch-min);height:var(--lx-size-touch-min);background:none;border:none;color:var(--lx-text-primary);cursor:pointer;border-radius:var(--lx-radius-full);display:flex;align-items:center;justify-content:center;transition:background-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.back-btn .icon{width:var(--lx-size-icon-lg);height:var(--lx-size-icon-lg)}.back-btn:active{background:var(--lx-bg-sunken)}@media (hover: hover){.back-btn:hover{background:var(--lx-bg-sunken)}}.lesson-topbar{display:flex;align-items:center;gap:var(--lx-space-2);min-height:calc(var(--lx-size-top-bar) + var(--lx-safe-top));padding:var(--lx-safe-top) var(--lx-space-4) 0 var(--lx-space-1);background:var(--lx-bg-surface);border-bottom:var(--lx-border-width-thin) solid var(--lx-border-subtle)}.lesson-topbar .back-btn{color:var(--lx-text-secondary)}.progress-bar-wrap{flex:1;height:var(--lx-size-progress-goal);background:var(--lx-game-track);border-radius:var(--lx-radius-full);overflow:hidden}.progress-bar-wrap--lesson{height:var(--lx-size-progress-lesson)}.progress-bar-wrap--goal{height:var(--lx-size-progress-goal)}.progress-bar-fill{height:100%;background:var(--lx-game-progress);border-radius:var(--lx-radius-full);transition:width var(--lx-motion-duration-slow) var(--lx-motion-easing-decelerate)}.progress-bar-fill--xp{background:var(--lx-game-xp-fill)}.progress-bar-wrap--lesson{position:relative;overflow:visible;margin-right:var(--lx-space-3)}.progress-bar-wrap--lesson .progress-bar-fill{position:relative;border-radius:var(--lx-radius-full) 0 0 var(--lx-radius-full)}.progress-bar-wrap--lesson .progress-bar-fill:after{content:"";position:absolute;right:calc(-1 * var(--lx-space-3));top:-5px;border-left:14px solid var(--lx-game-progress);border-top:11px solid transparent;border-bottom:11px solid transparent}.progress-label{font:var(--lx-typography-numeric);font-size:var(--lx-typography-label-size);font-variant-numeric:tabular-nums;color:var(--lx-text-secondary);min-width:var(--lx-space-10);text-align:right}.onboarding{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:calc(var(--lx-space-8) + var(--lx-safe-top)) var(--lx-space-6) calc(var(--lx-space-8) + var(--lx-safe-bottom));gap:var(--lx-space-6);max-width:480px;margin:0 auto;width:100%}.onboarding-hero{align-self:stretch}.onboarding h1{align-self:stretch;font:var(--lx-typography-display-xl);letter-spacing:var(--lx-typography-display-xl-tracking);text-align:left;color:var(--lx-text-primary)}.onboarding p{align-self:stretch;color:var(--lx-text-secondary);text-align:left}.onboarding-brand{align-self:flex-start}.onboarding-field{width:100%}.onboarding-lang-flag{font-size:var(--lx-typography-title-size);line-height:1}.onboarding-choice-check{margin-left:auto;flex-shrink:0;width:var(--lx-size-icon-md);height:var(--lx-size-icon-md);color:var(--lx-border-focus)}.onboarding-dots{display:flex;gap:var(--lx-space-2);justify-content:center}.onboarding-dot{width:var(--lx-space-2);height:var(--lx-space-2);border-radius:var(--lx-radius-full);background:var(--lx-border-strong);transition:background-color var(--lx-motion-duration-base) var(--lx-motion-easing-standard),width var(--lx-motion-duration-base) var(--lx-motion-easing-standard)}.onboarding-dot--active{background:var(--lx-game-trace-fill);width:var(--lx-space-6)}.onboarding-step{display:flex;flex-direction:column;align-items:center;gap:var(--lx-space-4);width:100%;max-width:400px}.onboarding-step h2{align-self:stretch;font:var(--lx-typography-headline);letter-spacing:var(--lx-typography-headline-tracking);text-align:left;color:var(--lx-text-primary)}.onboarding-sub{font:var(--lx-typography-body)}.onboarding-disclaimer{font:var(--lx-typography-caption);color:var(--lx-text-tertiary)!important}.onboarding-step-icon{align-self:flex-start;color:var(--lx-game-trace-fill);line-height:1}.onboarding-step-icon .icon{width:var(--lx-size-icon-hero);height:var(--lx-size-icon-hero)}.onboarding-step-icon--hand{color:var(--lx-game-hand-fill)}.onboarding-choices{display:flex;flex-direction:column;gap:var(--lx-space-3);width:100%}.onboarding-choice{width:100%;min-height:var(--lx-size-touch-comfort);padding:var(--lx-space-3) var(--lx-space-4);border:var(--lx-border-width-thick) solid var(--lx-border-default);border-radius:var(--lx-radius-md);background:var(--lx-bg-surface);font:var(--lx-typography-label);font-weight:var(--lx-font-weight-semibold);color:var(--lx-text-primary);text-align:left;cursor:pointer;transition:transform var(--lx-motion-duration-fast) var(--lx-motion-easing-standard),border-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard),background-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.onboarding-choice:active{transform:scale(calc(1 - .02 * var(--lx-motion-scale, 1)))}.onboarding-choice--selected{border-color:var(--lx-border-focus);box-shadow:inset 0 0 0 1px var(--lx-border-focus);background:var(--lx-feedback-info-soft);color:var(--lx-text-primary)}.onboarding-choice--goal{display:flex;align-items:center;gap:var(--lx-space-3)}.goal-icon{color:var(--lx-game-xp-fill);width:var(--lx-size-icon-lg);height:var(--lx-size-icon-lg)}.goal-label{font:var(--lx-typography-label);font-variant-numeric:tabular-nums}.goal-sub{font:var(--lx-typography-body-sm);color:var(--lx-text-secondary)}.goal-badge{margin-left:auto;background:var(--lx-action-primary-bg);color:var(--lx-action-primary-fg);font:var(--lx-typography-label-sm);padding:var(--lx-space-1) var(--lx-space-2);border-radius:var(--lx-radius-full);white-space:nowrap}.onboarding-input{width:100%;min-height:var(--lx-size-touch-comfort);padding:0 var(--lx-space-4);border:var(--lx-border-width-thick) solid var(--lx-border-strong);border-radius:var(--lx-radius-button);font:var(--lx-typography-body-lg);font-weight:var(--lx-font-weight-semibold);color:var(--lx-text-primary);background:var(--lx-bg-surface);transition:border-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.onboarding-input::placeholder{color:var(--lx-text-tertiary)}.onboarding-input:focus{border-color:var(--lx-border-focus);outline:none}.onboarding-input:focus-visible{outline:var(--lx-border-width-focus-ring) solid var(--lx-border-focus);outline-offset:var(--lx-border-width-focus-offset)}.onboarding-privacy-card{background:var(--lx-game-hand-soft);border-radius:var(--lx-radius-lg);padding:var(--lx-space-4);display:flex;gap:var(--lx-space-3);align-items:flex-start;width:100%}.privacy-icon{color:var(--lx-game-hand-text);width:var(--lx-size-icon-lg);height:var(--lx-size-icon-lg);margin-top:var(--lx-space-0-5)}.onboarding-privacy-card p{font:var(--lx-typography-body-sm);color:var(--lx-text-primary);text-align:left}.onboarding-camera-actions{display:flex;flex-direction:column;gap:var(--lx-space-3);width:100%}.onboarding-camera{position:relative;width:100%;aspect-ratio:4 / 3;border-radius:var(--lx-radius-lg);overflow:hidden;background:var(--lx-stage-bg)}.onboarding-camera .camera-video,.onboarding-camera .camera-canvas{width:100%;height:100%;object-fit:cover}.onboarding .onboarding-camera-pill{position:absolute;left:var(--lx-space-3);right:var(--lx-space-3);bottom:var(--lx-space-3);display:flex;align-items:center;gap:var(--lx-space-2);padding:var(--lx-space-2) var(--lx-space-3);border-radius:var(--lx-radius-md);background:var(--lx-stage-pill);color:var(--lx-stage-text);font:var(--lx-typography-label-sm)}.onboarding-camera-pill .icon{flex-shrink:0;width:var(--lx-size-icon-md);height:var(--lx-size-icon-md)}.onboarding-camera-pill--ok .icon{color:var(--lx-stage-landmark-correct)}.onboarding .onboarding-camera-msg{display:flex;align-items:flex-start;gap:var(--lx-space-3);width:100%;font:var(--lx-typography-body-sm);color:var(--lx-text-secondary)}.onboarding-camera-msg .icon{flex-shrink:0;width:var(--lx-size-icon-lg);height:var(--lx-size-icon-lg)}.onboarding .onboarding-camera-msg--off{padding:var(--lx-space-4);border:var(--lx-border-width-thin) solid var(--lx-border-default);border-radius:var(--lx-radius-lg);background:var(--lx-bg-surface);color:var(--lx-text-primary)}.onboarding-camera-msg--off .icon{color:var(--lx-text-secondary)}.coursemap-topbar{display:flex;align-items:center;justify-content:space-between;gap:var(--lx-space-2);min-height:calc(var(--lx-size-top-bar) + var(--lx-safe-top));padding:calc(var(--lx-safe-top) + var(--lx-space-3)) var(--lx-space-4) var(--lx-space-2);width:100%;max-width:var(--lx-size-content-max);margin:0 auto}.coursemap-hello{display:flex;flex-direction:column;gap:var(--lx-space-1);min-width:0}.coursemap-greeting{font:var(--lx-typography-body);color:var(--lx-text-secondary);min-width:0}.coursemap-greeting strong{color:var(--lx-text-primary);font-weight:var(--lx-font-weight-bold)}.coursemap-stats{display:flex;gap:var(--lx-space-2)}.topbar-stat--btn{min-height:var(--lx-size-touch-min);min-width:var(--lx-size-touch-min);padding:0 var(--lx-space-3);background:var(--lx-bg-surface);border:var(--lx-border-width-thin) solid var(--lx-border-subtle);border-radius:var(--lx-radius-full);cursor:pointer;justify-content:center;font:var(--lx-typography-numeric);font-variant-numeric:tabular-nums;color:var(--lx-text-primary)}.topbar-stat-icon{width:var(--lx-size-icon-md);height:var(--lx-size-icon-md)}.topbar-stat-icon--streak{color:var(--lx-game-streak-fill)}.topbar-stat-icon--xp{color:var(--lx-game-xp-fill)}.topbar-stat--btn:has(.topbar-stat-icon--streak){color:var(--lx-game-streak-text)}.topbar-stat--btn:has(.topbar-stat-icon--xp){color:var(--lx-game-xp-text)}@media (hover: hover){.topbar-stat--btn:hover{background:var(--lx-bg-sunken)}}.coursemap-body{flex:1;padding:var(--lx-space-2) var(--lx-space-4) var(--lx-space-4);display:flex;flex-direction:column;gap:var(--lx-space-4);width:100%;max-width:var(--lx-size-content-max);margin:0 auto}.prep-chip{position:absolute;left:50%;bottom:calc(100% + var(--lx-space-3));translate:-50% 0;margin:0;display:inline-flex;align-items:center;gap:var(--lx-space-1);padding:var(--lx-space-1) var(--lx-space-3);border-radius:var(--lx-radius-full);background:var(--lx-game-hand-soft);color:var(--lx-game-hand-text);box-shadow:var(--lx-elevation-2);font:var(--lx-typography-label-sm);letter-spacing:var(--lx-typography-label-sm-tracking);font-variant-numeric:tabular-nums;white-space:nowrap;pointer-events:none;animation:lx-fade-in var(--lx-motion-duration-base) var(--lx-motion-easing-decelerate)}.prep-chip-icon{width:var(--lx-size-icon-sm);height:var(--lx-size-icon-sm)}@media (prefers-reduced-motion: reduce){.prep-chip{animation-duration:var(--lx-motion-duration-fast)}}:root[data-reduced-motion=true] .prep-chip{animation-duration:var(--lx-motion-duration-fast)}.coursemap-footnote{font:var(--lx-typography-caption);color:var(--lx-text-tertiary);text-align:center;padding:var(--lx-space-2) 0 var(--lx-space-6)}.xp-bar-card{background:var(--lx-bg-surface);border-radius:var(--lx-radius-lg);padding:var(--lx-space-4);border:var(--lx-border-width-thin) solid var(--lx-border-default)}.xp-bar-header{display:flex;align-items:center;justify-content:space-between;gap:var(--lx-space-2);margin-bottom:var(--lx-space-2);font:var(--lx-typography-label-sm);color:var(--lx-text-secondary)}.xp-bar-title,.xp-bar-done{display:inline-flex;align-items:center;gap:var(--lx-space-1)}.xp-bar-title{color:var(--lx-text-primary)}.xp-bar-icon{color:var(--lx-game-xp-fill)}.xp-bar-done{color:var(--lx-feedback-success-text)}.xp-bar-value{color:var(--lx-game-xp-text);font-variant-numeric:tabular-nums}.streak-risk-banner{background:var(--lx-feedback-warning-soft);border:var(--lx-border-width-thick) solid var(--lx-feedback-warning-strong);border-radius:var(--lx-radius-md);min-height:var(--lx-size-touch-min);padding:var(--lx-space-3) var(--lx-space-4);display:flex;align-items:center;gap:var(--lx-space-3);font:var(--lx-typography-body-sm);font-weight:var(--lx-font-weight-semibold);color:var(--lx-feedback-warning-on-soft);cursor:pointer;width:100%;text-align:left}.streak-risk-banner .icon{color:var(--lx-feedback-warning-text);width:var(--lx-size-icon-lg);height:var(--lx-size-icon-lg)}.unit-section{display:flex;flex-direction:column;gap:var(--lx-space-3)}.unit-header{position:sticky;top:var(--lx-safe-top);z-index:var(--lx-z-index-sticky);display:flex;align-items:flex-end;justify-content:space-between;gap:var(--lx-space-3);padding:var(--lx-space-3) var(--lx-space-4);background:var(--lx-bg-surface);border:var(--lx-border-width-thin) solid var(--lx-border-subtle);border-radius:var(--lx-radius-md);box-shadow:var(--lx-elevation-1)}.unit-header-text{min-width:0}.unit-badge{display:inline-block;margin-bottom:var(--lx-space-1);padding:2px var(--lx-space-2);border-radius:var(--lx-radius-full);background:var(--lx-game-hand-soft);font:var(--lx-typography-label-sm);letter-spacing:var(--lx-typography-label-sm-tracking);color:var(--lx-game-hand-text);text-transform:uppercase}.unit-title{font:var(--lx-typography-title);letter-spacing:var(--lx-typography-title-tracking);color:var(--lx-text-primary)}.unit-desc{font:var(--lx-typography-body-sm);color:var(--lx-text-secondary)}.unit-progress{flex-shrink:0;display:flex;flex-direction:column;align-items:flex-end;gap:var(--lx-space-1);width:96px}.unit-progress-label{font:var(--lx-typography-caption);color:var(--lx-text-secondary);font-variant-numeric:tabular-nums;white-space:nowrap}.unit-progress-bar{width:100%;height:var(--lx-size-confidence-bar);border-radius:var(--lx-radius-full);background:var(--lx-game-track);overflow:hidden}.unit-progress-fill{height:100%;background:var(--lx-game-progress);border-radius:var(--lx-radius-full);transition:width var(--lx-motion-duration-slow) var(--lx-motion-easing-decelerate)}.lesson-trail{--trail-x: calc(var(--lx-space-2) + var(--lx-size-lesson-node-current) / 2);list-style:none;display:flex;flex-direction:column;gap:var(--lx-space-3);padding:var(--lx-space-1) 0 var(--lx-space-2)}.lesson-row{position:relative;display:flex;align-items:center;gap:var(--lx-space-4);min-height:calc(var(--lx-size-lesson-node-current) + var(--lx-space-1));padding:0 var(--lx-space-3) 0 var(--lx-space-2);border-radius:var(--lx-radius-md);cursor:pointer;transition:background-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.lesson-row.locked{cursor:not-allowed}@media (hover: hover){.lesson-row:not(.locked):hover{background:var(--lx-bg-surface)}}.lesson-row:before,.lesson-row:after{content:"";position:absolute;left:calc(var(--trail-x) - 2px);width:4px;background:var(--lx-border-strong);z-index:0}.lesson-row:before{top:0;height:50%}.lesson-row:after{top:50%;bottom:calc(-1 * var(--lx-space-3))}.lesson-row:first-child:before,.lesson-row:last-child:after{display:none}.lesson-row.completed:before,.lesson-row.completed:after,.lesson-row.completed+.lesson-row:before{background:var(--lx-game-trace-fill);border-radius:var(--lx-radius-xs)}.lesson-row.locked:before,.lesson-row:has(+.lesson-row.locked):after{background:radial-gradient(circle,var(--lx-border-strong) 0 1.5px,transparent 2px) center top / 4px 10px repeat-y}.lesson-node{position:relative;z-index:1;flex-shrink:0;display:flex;align-items:center;justify-content:center;width:var(--lx-size-lesson-node);height:var(--lx-size-lesson-node);margin:0 calc((var(--lx-size-lesson-node-current) - var(--lx-size-lesson-node)) / 2);border-radius:var(--lx-radius-full);background:var(--lx-action-primary-bg);color:var(--lx-action-primary-fg);box-shadow:0 3px 0 var(--lx-action-primary-base)}.lesson-row.completed .lesson-node{background:var(--lx-game-hand-fill);color:var(--lx-game-hand-on-fill);box-shadow:none}.lesson-row.locked .lesson-node{background:var(--lx-bg-surface);border:var(--lx-border-width-selected) solid var(--lx-game-locked-bg);color:var(--lx-game-locked-fg);box-shadow:none}.lesson-row.due_srs .lesson-node{background:var(--lx-game-hand-soft);color:var(--lx-game-hand-text);border:var(--lx-border-width-thick) solid var(--lx-game-hand-fill);box-shadow:none}.lesson-row.current{margin:var(--lx-space-3) 0}.lesson-row.current .lesson-node{width:var(--lx-size-lesson-node-current);height:var(--lx-size-lesson-node-current);margin:0;box-shadow:0 3px 0 var(--lx-action-primary-base)}.lesson-info{flex:1;min-width:0}.lesson-info h3{font:var(--lx-typography-title-sm);color:var(--lx-text-primary);overflow-wrap:anywhere}.lesson-info p{font:var(--lx-typography-body-sm);color:var(--lx-text-secondary)}.lesson-row.locked .lesson-info h3{color:var(--lx-text-secondary)}.lesson-row.locked .lesson-info p{color:var(--lx-text-tertiary)}.lesson-row.current .lesson-info h3{font-weight:var(--lx-font-weight-black)}.lesson-marks{display:flex;gap:var(--lx-space-1);margin-top:var(--lx-space-1)}.lesson-mark{width:var(--lx-space-3);height:var(--lx-space-1);border-radius:var(--lx-radius-full);background:var(--lx-game-track)}.lesson-mark--on{background:var(--lx-game-xp-fill)}.lesson-badge{flex-shrink:0;font:var(--lx-typography-label-sm);padding:var(--lx-space-1) var(--lx-space-3);border-radius:var(--lx-radius-full)}.lesson-badge.next{display:inline-flex;align-items:center;min-height:var(--lx-size-button-sm);padding:0 var(--lx-space-4);background:var(--lx-action-primary-bg);color:var(--lx-action-primary-fg);font:var(--lx-typography-button);font-size:var(--lx-typography-body-sm-size)}.lesson-badge.srs{background:var(--lx-game-hand-soft);color:var(--lx-game-hand-text)}.coursemap-dock{position:sticky;bottom:var(--lx-nav-offset);z-index:var(--lx-z-index-sticky)}.resume-banner{position:relative;background:var(--lx-stage-bg);color:var(--lx-stage-text);border-top:var(--lx-border-width-thin) solid var(--lx-border-subtle);box-shadow:var(--lx-elevation-2);overflow:hidden}.resume-banner-arc{position:absolute;right:var(--lx-space-12);top:var(--lx-space-1);width:120px;height:44px;opacity:.55;pointer-events:none}.resume-banner-content{position:relative;display:flex;align-items:center;gap:var(--lx-space-3);min-height:var(--lx-size-touch-comfort);padding:var(--lx-space-3) var(--lx-space-4);width:100%;max-width:var(--lx-size-content-max);margin:0 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var(--lx-space-4)}.exercise-video-toggle,.exercise-video-replay{position:absolute;bottom:var(--lx-space-2);min-height:var(--lx-size-touch-min);border:none;border-radius:var(--lx-radius-full);background:var(--lx-stage-pill);color:var(--lx-stage-text);cursor:pointer;display:flex;align-items:center;justify-content:center}.exercise-video-toggle{left:var(--lx-space-2);width:var(--lx-size-touch-min)}.exercise-video-replay{right:var(--lx-space-2);gap:var(--lx-space-1);padding:0 var(--lx-space-4);font:var(--lx-typography-label-sm)}.sign-demo{display:flex;flex-direction:column;align-items:center;gap:var(--lx-space-2);width:100%}.sign-demo-stage{position:relative;height:min(40dvh,420px);aspect-ratio:3 / 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var(--lx-motion-duration-base) var(--lx-motion-easing-standard)}.sign-demo-controls{display:flex;justify-content:center;gap:var(--lx-space-2)}.sign-demo-btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--lx-space-1);min-height:var(--lx-size-touch-min);min-width:var(--lx-size-touch-min);padding:0 var(--lx-space-4);border-radius:var(--lx-radius-full);border:var(--lx-border-width-thick) solid var(--lx-action-secondary-border);background:var(--lx-action-secondary-bg);color:var(--lx-action-secondary-fg);font:var(--lx-typography-label-sm);cursor:pointer;transition:transform var(--lx-motion-duration-instant) var(--lx-motion-easing-standard)}.sign-demo-btn:active:not(:disabled){transform:scale(calc(1 - .03 * var(--lx-motion-scale, 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var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.vlibras-host--visible{opacity:1}.vlibras-frame{display:block;width:100%;height:100%;border:0;background:transparent}@media (prefers-reduced-motion: reduce){.sign-demo-progress-fill{transition:none}}:root[data-reduced-motion=true] .sign-demo-progress-fill{transition:none}.cam-sign-demo-toggle{margin-top:var(--lx-space-3)}.cam-sign-viewport-wrap.hidden{position:absolute;width:1px;height:1px;overflow:hidden;opacity:0;pointer-events:none}.cam-sign-demo{display:flex;flex-direction:column;align-items:center;gap:var(--lx-space-2);width:100%;max-width:480px;margin:0 auto}.cam-sign-demo-note{font:var(--lx-typography-body-sm);color:var(--lx-text-secondary);text-align:center}@media (min-width: 768px){.cam-sign-demo{flex:1 1 300px;min-width:0;margin:0}}.pairs-layout{display:flex;flex-direction:column;gap:var(--lx-space-5);flex:1}@media (min-width: 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var(--lx-border-focus);background:var(--lx-feedback-info-soft)}.pair-card--correct{border-color:var(--lx-feedback-success-strong);background:var(--lx-feedback-success-soft);color:var(--lx-feedback-success-on-soft);cursor:default}.pair-card--wrong{border-color:var(--lx-feedback-error-strong);background:var(--lx-feedback-error-soft);color:var(--lx-feedback-error-on-soft)}.pair-icon{width:var(--lx-size-icon-md);height:var(--lx-size-icon-md)}.pair-icon--ok{color:var(--lx-feedback-success-strong)}.pair-icon--err{color:var(--lx-feedback-error-strong)}.pairs-glosses .mc-choice{padding:var(--lx-space-3) var(--lx-space-2)}.order-hint{font:var(--lx-typography-body-sm);color:var(--lx-text-secondary);text-align:center}.order-list{list-style:none;display:flex;flex-direction:column;gap:var(--lx-space-2);width:100%;max-width:400px;align-self:center}.order-item{position:relative;display:flex;align-items:center;gap:var(--lx-space-3);min-height:var(--lx-size-touch-comfort);padding:var(--lx-space-1) var(--lx-space-1) var(--lx-space-1) var(--lx-space-4);background:var(--lx-bg-surface);border:var(--lx-border-width-thick) solid var(--lx-border-default);border-radius:var(--lx-radius-md);font:var(--lx-typography-body);font-weight:var(--lx-font-weight-semibold);cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}.order-item:active{cursor:grabbing}.order-item--dragging{z-index:var(--lx-z-index-sticky);border-color:var(--lx-border-focus);background:var(--lx-bg-raised);box-shadow:var(--lx-elevation-3);cursor:grabbing}.order-item--correct{border-color:var(--lx-feedback-success-strong);background:var(--lx-feedback-success-soft);color:var(--lx-feedback-success-on-soft)}.order-item--wrong{border-color:var(--lx-feedback-error-strong);background:var(--lx-feedback-error-soft);color:var(--lx-feedback-error-on-soft)}.order-grip{flex:none;color:var(--lx-text-tertiary)}.order-text{flex:1;min-width:0;overflow-wrap:anywhere}.order-moves{flex:none;display:flex;gap:var(--lx-space-1)}.order-move{width:var(--lx-size-touch-min);height:var(--lx-size-touch-min);display:inline-flex;align-items:center;justify-content:center;border:var(--lx-border-width-thin) solid var(--lx-action-secondary-border);border-radius:var(--lx-radius-sm);background:var(--lx-action-secondary-bg);color:var(--lx-action-secondary-fg);cursor:pointer;touch-action:manipulation;transition:background var(--lx-motion-duration-fast) var(--lx-motion-easing-standard)}.order-move:disabled{border-color:var(--lx-border-subtle);background:transparent;color:var(--lx-text-disabled);cursor:default}.order-move:focus-visible{outline:var(--lx-border-width-focus-ring) solid var(--lx-border-focus);outline-offset:var(--lx-border-width-focus-offset)}.order-status-icon{margin-left:auto;margin-right:var(--lx-space-3)}.order-status-icon--ok{color:var(--lx-feedback-success-strong)}.order-status-icon--err{color:var(--lx-feedback-error-strong)}.order-correct-list{list-style:none;display:flex;flex-direction:column;gap:var(--lx-space-1);margin-top:var(--lx-space-2)}.order-correct-item{font:var(--lx-typography-body-sm)}.phrase-pt{background:var(--lx-bg-surface);border:var(--lx-border-width-thin) 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var(--lx-space-2));width:var(--lx-size-icon-sm);height:var(--lx-size-icon-sm);padding:var(--lx-space-0-5);border-radius:var(--lx-radius-full);background:var(--lx-feedback-success-strong);color:var(--lx-feedback-success-on-strong);box-sizing:content-box}.fingerspell-progress{font:var(--lx-typography-label);color:var(--lx-text-primary);text-align:center}.wcv-word{font-weight:var(--lx-font-weight-heavy);letter-spacing:.04em;color:var(--lx-game-hand-text)}.wcv-stage{display:flex;flex-direction:column;align-items:center;gap:var(--lx-space-2);width:100%}.wcv-stage-title{font:var(--lx-typography-label-sm);color:var(--lx-text-secondary)}.sign-demo--choose .sign-demo-stage{height:min(30dvh,320px)}.wcv-stage-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--lx-space-2);width:100%;min-height:var(--lx-space-16);padding:var(--lx-space-4);border:var(--lx-border-width-thin) dashed var(--lx-border-default);border-radius:var(--lx-radius-lg);background:var(--lx-bg-sunken);color:var(--lx-text-secondary);font:var(--lx-typography-body-sm);text-align:center}.wcv-stage-text{width:100%;padding:var(--lx-space-4);border-radius:var(--lx-radius-lg);background:var(--lx-bg-sunken);font:var(--lx-typography-body);color:var(--lx-text-primary);text-align:center}.wcv-options{display:flex;flex-direction:column;gap:var(--lx-space-2);width:100%}.wcv-option{display:flex;align-items:center;gap:var(--lx-space-3);width:100%;min-height:var(--lx-size-touch-comfort);padding:var(--lx-space-2) var(--lx-space-3);background:var(--lx-bg-surface);border:var(--lx-border-width-thick) solid var(--lx-border-default);border-radius:var(--lx-radius-choice);color:var(--lx-text-primary);text-align:left;cursor:pointer;transition:transform var(--lx-motion-duration-fast) var(--lx-motion-easing-standard),border-color var(--lx-motion-duration-fast) var(--lx-motion-easing-standard),background-color 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