@layer ds-base,ds-responsive;:root{--ds-color-brand-primary: #0052ff;--ds-color-brand-hover: #003ecc;--ds-color-brand-soft: #eef3ff;--ds-color-accent: #0052ff;--ds-color-surface: #ffffff;--ds-color-surface-muted: #f5f7ff;--ds-color-surface-inset: #edf1ff;--ds-color-text-primary: #28365b;--ds-color-text-secondary: #56617b;--ds-color-text-inverse: #ffffff;--ds-color-border: #dce3f3;--ds-color-border-strong: #7783a0;--ds-color-success: #22663c;--ds-color-success-soft: #eaf5ec;--ds-color-warning: #81540e;--ds-color-warning-soft: #fff3d7;--ds-color-danger: #a33235;--ds-color-danger-soft: #fff0ef;--ds-color-info: #315b8b;--ds-color-info-soft: #edf3fc;--ds-color-focus: #0052ff;--ds-color-overlay: #637ab866;--ds-color-navy: #edf1ff;--ds-color-on-navy: #28365b;--ds-color-on-navy-muted: #56617b;--ds-color-peach: #fff0e6;--ds-color-lavender: #eee8ff;--ds-color-yellow: #fff5cc;--ds-color-mint: #e3f6ff;--ds-color-on-tint: #28365b;--ds-color-link: #0049e6;--ds-color-brand-ink: #0052ff;--ds-color-dark-elevated: #ffffff;--ds-color-on-dark-accent: #0052ff;--ds-color-dark-inset: #edf1ff;--ds-color-dark-border: #dce3f3;--ds-color-dark-border-strong: #7783a0;--ds-color-dark-brand-soft: #eef3ff;--ds-typography-font-family: "Inter Variable", -apple-system, system-ui, "Segoe UI", sans-serif;--ds-typography-font-mono: "Geist Mono Variable", ui-monospace, monospace;--ds-typography-reading-width: 65ch;--ds-typography-display-size: clamp(2.5rem, 5.6vw, 5rem);--ds-typography-display-line-height: 1;--ds-typography-display-weight: 400;--ds-typography-display-tracking: -.025em;--ds-typography-h1-size: clamp(2.5rem, 5vw, 4rem);--ds-typography-h1-line-height: 1.04;--ds-typography-h1-weight: 400;--ds-typography-h1-tracking: -.025em;--ds-typography-h2-size: clamp(2rem, 4vw, 3.25rem);--ds-typography-h2-line-height: 1.08;--ds-typography-h2-weight: 400;--ds-typography-h2-tracking: -.025em;--ds-typography-h3-size: 2rem;--ds-typography-h3-line-height: 1.13;--ds-typography-h3-weight: 400;--ds-typography-h3-tracking: -.0125em;--ds-typography-body-large-size: 1.125rem;--ds-typography-body-large-line-height: 1.5;--ds-typography-body-large-weight: 400;--ds-typography-body-large-tracking: 0em;--ds-typography-body-size: 1rem;--ds-typography-body-line-height: 1.5;--ds-typography-body-weight: 400;--ds-typography-body-tracking: 0em;--ds-typography-small-size: .875rem;--ds-typography-small-line-height: 1.5;--ds-typography-small-weight: 400;--ds-typography-small-tracking: 0em;--ds-typography-label-size: .8125rem;--ds-typography-label-line-height: 1.45;--ds-typography-label-weight: 650;--ds-typography-label-tracking: .02em;--ds-typography-button-size: 1rem;--ds-typography-button-line-height: 1.15;--ds-typography-button-weight: 600;--ds-typography-button-tracking: 0em;--ds-spacing-0: 0;--ds-spacing-1: .25rem;--ds-spacing-2: .5rem;--ds-spacing-3: .75rem;--ds-spacing-4: 1rem;--ds-spacing-5: 1.25rem;--ds-spacing-6: 1.5rem;--ds-spacing-8: 2rem;--ds-spacing-10: 2.5rem;--ds-spacing-12: 3rem;--ds-spacing-16: 4rem;--ds-spacing-20: 5rem;--ds-spacing-24: 6rem;--ds-spacing-section: 6rem;--ds-spacing-section-mobile: 3rem;--ds-radius-sm: .5rem;--ds-radius-md: .75rem;--ds-radius-lg: 1.5rem;--ds-radius-xl: 1.5rem;--ds-radius-pill: 100px;--ds-radius-xs: .25rem;--ds-shadow-sm: none;--ds-shadow-card: 0 8px 24px #4761a30a;--ds-shadow-overlay: 0 16px 56px #4761a31f;--ds-motion-fast: .15s;--ds-motion-normal: .2s;--ds-motion-slow: .38s;--ds-motion-easing: cubic-bezier(.2, 0, 0, 1);--ds-motion-reduced: .01ms;--ds-z-index-base: 0;--ds-z-index-sticky: 10;--ds-z-index-navigation: 20;--ds-z-index-tooltip: 30;--ds-z-index-toast: 40;--ds-z-index-modal: 50;--ds-breakpoints-mobile: 360px;--ds-breakpoints-tablet: 768px;--ds-breakpoints-desktop: 1024px;--ds-breakpoints-wide: 1280px;--ds-layout-max-width: 75rem;--ds-layout-sidebar: 15rem;--ds-layout-sidebar-compact: 5rem;--ds-layout-context: 19rem;--ds-layout-control-height: 2.75rem;--ds-layout-gutter: 2rem;--ds-layout-gutter-mobile: 1rem;--ds-layout-nav-height: 4rem;--ds-states-disabled-opacity: .48;--ds-states-focus-width: 3px;--ds-states-focus-offset: 3px;--ds-states-loading-opacity: .7;color-scheme:light}@layer ds-responsive{@media(min-width:1024px){.ds-shell{display:grid;grid-template-columns:var(--ds-layout-sidebar) minmax(0,1fr)}.ds-sidebar{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;gap:var(--ds-spacing-12)}.ds-dashboard{grid-template-columns:minmax(0,1fr) var(--ds-layout-context)}}@media(min-width:768px)and (max-width:1023px){.ds-shell{display:grid;grid-template-columns:var(--ds-layout-sidebar-compact) minmax(0,1fr)}.ds-sidebar{position:sticky;top:0;height:100vh;padding:var(--ds-spacing-6) var(--ds-spacing-2);display:flex;flex-direction:column;align-items:center;gap:var(--ds-spacing-8)}.ds-sidebar .ds-logo-name,.ds-sidebar .ds-nav-label,.ds-sidebar-note{display:none}.ds-demo-nav a{justify-content:center;padding:var(--ds-spacing-3)}.ds-context{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--ds-spacing-5)}}@media(max-width:767px){.ds-dashboard-main,.ds-dashboard>.ds-context{display:contents}.ds-dashboard .ds-continue{order:1}.ds-dashboard>.ds-context>:first-child{order:2}.ds-dashboard>.ds-context>:last-child{order:3}.ds-dashboard-practice{order:4}.ds-sidebar{position:fixed;bottom:0;inset-inline:0;z-index:var(--ds-z-index-navigation);padding:var(--ds-spacing-2) var(--ds-spacing-1) calc(var(--ds-spacing-2) + env(safe-area-inset-bottom));border-top:1px solid var(--ds-color-border)}.ds-sidebar>.ds-logo,.ds-sidebar-note{display:none}.ds-demo-nav{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0}.ds-demo-nav a{flex-direction:column;gap:var(--ds-spacing-1);padding:var(--ds-spacing-2) 0;font-size:.6875rem;text-align:center}.ds-workspace{padding:var(--ds-spacing-6) var(--ds-spacing-4) calc(var(--ds-spacing-20) + var(--ds-spacing-8) + env(safe-area-inset-bottom))}.ds-topbar{align-items:flex-start;padding-bottom:var(--ds-spacing-6)}.ds-topbar .ds-user-name{display:none}.ds-continue{padding:var(--ds-spacing-6)}.ds-continue-art{display:none}.ds-card{padding:var(--ds-spacing-5)}.ds-course-card{padding:var(--ds-spacing-3)}}}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-cyrillic-ext-wght-normal-BOeWTOD4.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-cyrillic-wght-normal-DqGufNeO.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-greek-ext-wght-normal-DlzME5K_.woff2) format("woff2-variations");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-greek-wght-normal-CkhJZR-_.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-vietnamese-wght-normal-CBcvBZtf.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-latin-ext-wght-normal-DO1Apj_S.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/inter-latin-wght-normal-Dx4kXJAl.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-cyrillic-ext-wght-normal-X_5orZeX.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-cyrillic-wght-normal-DiZS0aHC.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-symbols2-wght-normal-CO5SzqOn.woff2) format("woff2-variations");unicode-range:U+2000-2001,U+2004-2008,U+200A,U+23B8-23BD,U+2500-259F}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-vietnamese-wght-normal-DadHysG0.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-latin-ext-wght-normal-Bwz-egvJ.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Geist Mono Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./assets/geist-mono-latin-wght-normal-XN7g48iV.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@layer ds-base{*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;font-family:var(--ds-typography-font-family);font-size:var(--ds-typography-body-size);line-height:var(--ds-typography-body-line-height);color:var(--ds-color-text-primary);background:var(--ds-color-surface-muted);overflow-wrap:break-word}button,input,select,textarea{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled,input:disabled,select:disabled{cursor:not-allowed;opacity:var(--ds-states-disabled-opacity)}a{color:inherit;text-underline-offset:.2em}svg{flex-shrink:0}img{max-width:100%}p,h1,h2,h3{margin:0}h1,.ds-h1{font-size:var(--ds-typography-h1-size);font-weight:var(--ds-typography-h1-weight);line-height:var(--ds-typography-h1-line-height);letter-spacing:var(--ds-typography-h1-tracking)}h2,.ds-h2{font-size:var(--ds-typography-h2-size);font-weight:var(--ds-typography-h2-weight);line-height:var(--ds-typography-h2-line-height);letter-spacing:var(--ds-typography-h2-tracking)}h3,.ds-h3{font-size:var(--ds-typography-h3-size);font-weight:var(--ds-typography-h3-weight);line-height:var(--ds-typography-h3-line-height);letter-spacing:var(--ds-typography-h3-tracking)}.ds-display{font-size:var(--ds-typography-display-size);font-weight:var(--ds-typography-display-weight);line-height:var(--ds-typography-display-line-height);letter-spacing:var(--ds-typography-display-tracking)}.ds-body-large{font-size:var(--ds-typography-body-large-size);line-height:var(--ds-typography-body-large-line-height)}.ds-small{font-size:var(--ds-typography-small-size);line-height:var(--ds-typography-small-line-height)}.ds-label,.ds-eyebrow{font-size:var(--ds-typography-label-size);line-height:var(--ds-typography-label-line-height);font-weight:var(--ds-typography-label-weight);letter-spacing:var(--ds-typography-label-tracking)}.ds-eyebrow{letter-spacing:.09em}.ds-reading{max-width:var(--ds-typography-reading-width);line-height:var(--ds-typography-body-large-line-height)}.ds-muted{color:var(--ds-color-text-secondary)}.ds-danger-text{color:var(--ds-color-danger)}.ds-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}:where(a,button,input,select,summary,[tabindex]):focus-visible{outline:var(--ds-states-focus-width) solid var(--ds-color-focus);outline-offset:var(--ds-states-focus-offset)}.ds-stack{display:flex;flex-direction:column;gap:var(--ds-spacing-4);min-width:0}.ds-stack--sm{gap:var(--ds-spacing-2)}.ds-stack--lg{gap:var(--ds-spacing-8)}.ds-row{display:flex;align-items:center;gap:var(--ds-spacing-3);min-width:0}.ds-wrap{flex-wrap:wrap}.ds-between{justify-content:space-between}.ds-grow{flex:1;min-width:0}.ds-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,17rem),1fr));gap:var(--ds-spacing-5)}.ds-section{scroll-margin-top:var(--ds-spacing-8)}.ds-divider{border:0;border-top:1px solid var(--ds-color-border);width:100%;margin:var(--ds-spacing-2) 0}.ds-button{min-height:var(--ds-layout-control-height);padding:var(--ds-spacing-3) var(--ds-spacing-5);display:inline-flex;gap:var(--ds-spacing-2);align-items:center;justify-content:center;border:1px solid transparent;border-radius:var(--ds-radius-pill);font-size:var(--ds-typography-button-size);font-weight:var(--ds-typography-button-weight);line-height:var(--ds-typography-button-line-height);text-decoration:none;transition:background var(--ds-motion-fast) var(--ds-motion-easing),box-shadow var(--ds-motion-fast) var(--ds-motion-easing)}.ds-button--primary{background:var(--ds-color-brand-primary);color:var(--ds-color-text-inverse)}.ds-button--primary:hover:not(:disabled){background:var(--ds-color-brand-hover)}.ds-button--secondary{background:var(--ds-color-surface);color:var(--ds-color-text-primary);border-color:var(--ds-color-border-strong)}.ds-button--secondary:hover:not(:disabled){background:var(--ds-color-brand-soft);border-color:var(--ds-color-brand-ink)}.ds-button--quiet{background:transparent;color:inherit;padding-inline:var(--ds-spacing-3)}.ds-button--quiet:hover:not(:disabled){background:var(--ds-color-brand-soft);color:var(--ds-color-brand-ink)}.ds-button--danger{background:var(--ds-color-danger);color:var(--ds-color-text-inverse)}.ds-button--sm{padding:var(--ds-spacing-2) var(--ds-spacing-3)}.ds-button[aria-busy=true]{opacity:var(--ds-states-loading-opacity)}.ds-spinner{width:1em;height:1em;border:2px solid currentColor;border-inline-start-color:transparent;border-radius:var(--ds-radius-pill);animation:ds-spin 1s linear infinite}@keyframes ds-spin{to{transform:rotate(360deg)}}.ds-field{display:flex;flex-direction:column;gap:var(--ds-spacing-2)}.ds-fieldset{border:0;margin:0;padding:0;min-width:0}.ds-fieldset legend{padding:0;margin-bottom:var(--ds-spacing-4)}.ds-input{display:block;width:100%;min-height:var(--ds-layout-control-height);border:1px solid var(--ds-color-border-strong);border-radius:var(--ds-radius-md);background:var(--ds-color-surface);color:var(--ds-color-text-primary);padding:var(--ds-spacing-3)}.ds-input::placeholder{color:var(--ds-color-text-secondary)}.ds-input[aria-invalid=true]{border-color:var(--ds-color-danger);background:var(--ds-color-danger-soft)}.ds-choice{display:inline-flex;align-items:flex-start;gap:var(--ds-spacing-3);min-height:var(--ds-layout-control-height);padding-block:var(--ds-spacing-2);cursor:pointer}.ds-choice input,.ds-quiz-option input{width:1.15rem;height:1.15rem;margin:.2em 0 0;flex-shrink:0;accent-color:var(--ds-color-brand-ink)}.ds-choice:has(input:disabled){cursor:not-allowed;color:var(--ds-color-text-secondary)}.ds-tone--neutral{color:var(--ds-color-text-secondary);background:var(--ds-color-surface-inset)}.ds-tone--success{color:var(--ds-color-success);background:var(--ds-color-success-soft)}.ds-tone--warning{color:var(--ds-color-warning);background:var(--ds-color-warning-soft)}.ds-tone--danger{color:var(--ds-color-danger);background:var(--ds-color-danger-soft)}.ds-tone--info{color:var(--ds-color-info);background:var(--ds-color-info-soft)}.ds-badge{display:inline-flex;align-items:center;padding:var(--ds-spacing-1) var(--ds-spacing-3);font-size:var(--ds-typography-label-size);font-weight:var(--ds-typography-label-weight);border-radius:var(--ds-radius-pill);width:fit-content;white-space:nowrap}.ds-pill{padding:var(--ds-spacing-2) var(--ds-spacing-4);min-height:var(--ds-layout-control-height);border:1px solid var(--ds-color-border);border-radius:var(--ds-radius-pill);background:var(--ds-color-surface);color:var(--ds-color-text-secondary);font-size:var(--ds-typography-small-size)}.ds-pill[aria-pressed=true]{background:var(--ds-color-brand-soft);border-color:var(--ds-color-brand-ink);color:var(--ds-color-brand-ink);font-weight:var(--ds-typography-label-weight)}.ds-card{padding:var(--ds-spacing-6);border:1px solid var(--ds-color-border);border-radius:var(--ds-radius-lg);background:var(--ds-color-surface);box-shadow:var(--ds-shadow-sm);min-width:0}.ds-icon-tile{display:inline-flex;align-items:center;justify-content:center;width:var(--ds-spacing-12);height:var(--ds-spacing-12);flex-shrink:0;border-radius:var(--ds-radius-md);color:var(--ds-color-brand-ink);background:var(--ds-color-brand-soft)}.ds-tablist{display:flex;flex-wrap:wrap;gap:var(--ds-spacing-2);padding:var(--ds-spacing-1);border-bottom:1px solid var(--ds-color-border)}.ds-tablist button{min-height:var(--ds-layout-control-height);background:none;border:0;border-bottom:3px solid transparent;padding:var(--ds-spacing-3);color:var(--ds-color-text-secondary)}.ds-tablist button[aria-selected=true]{color:var(--ds-color-brand-ink);border-bottom-color:currentColor;font-weight:var(--ds-typography-button-weight)}.ds-tabpanel{padding-block:var(--ds-spacing-5)}.ds-dialog{width:min(calc(100% - 2rem),34rem);max-height:calc(100dvh - 2rem);overflow-y:auto;border:1px solid var(--ds-color-border);border-radius:var(--ds-radius-xl);padding:var(--ds-spacing-6);color:var(--ds-color-text-primary);background:var(--ds-color-surface);box-shadow:var(--ds-shadow-overlay)}.ds-dialog::backdrop{background:var(--ds-color-overlay)}.ds-drawer{margin:0 0 0 auto;width:min(100%,28rem);height:100dvh;max-height:100dvh;border-radius:var(--ds-radius-xl) 0 0 var(--ds-radius-xl)}.ds-tooltip-anchor{position:relative;display:inline-flex}.ds-tooltip{position:absolute;bottom:calc(100% + var(--ds-spacing-2));inset-inline-start:0;width:max-content;max-width:min(15rem,80vw);padding:var(--ds-spacing-2) var(--ds-spacing-3);border-radius:var(--ds-radius-sm);background:var(--ds-color-text-primary);color:var(--ds-color-surface);font-size:var(--ds-typography-small-size);z-index:var(--ds-z-index-tooltip);box-shadow:var(--ds-shadow-card)}.ds-toast{display:flex;justify-content:space-between;align-items:center;gap:var(--ds-spacing-3);padding:var(--ds-spacing-3) var(--ds-spacing-4);background:var(--ds-color-surface);border:1px solid var(--ds-color-border-strong);border-radius:var(--ds-radius-md);box-shadow:var(--ds-shadow-overlay)}.ds-toast-region{position:fixed;inset-inline:var(--ds-spacing-4);bottom:calc(var(--ds-spacing-20) + env(safe-area-inset-bottom));margin-inline:auto;max-width:32rem;z-index:var(--ds-z-index-toast)}.ds-skeleton span{display:block;height:1rem;border-radius:var(--ds-radius-sm);background:var(--ds-color-surface-inset);animation:ds-pulse 1.5s ease-in-out infinite alternate}.ds-skeleton span:last-child{width:65%}@keyframes ds-pulse{to{opacity:var(--ds-states-disabled-opacity)}}.ds-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--ds-spacing-4);padding:var(--ds-spacing-6);border-radius:var(--ds-radius-lg)}.ds-state p{max-width:36ch}.ds-progress{width:100%;display:flex;flex-direction:column;gap:var(--ds-spacing-2)}.ds-progress-track{height:.5rem;background:var(--ds-color-surface-inset);border-radius:var(--ds-radius-pill);overflow:hidden}.ds-progress-track>span{display:block;height:100%;background:var(--ds-color-brand-primary);border-radius:inherit}.ds-ring{width:6rem;height:6rem;position:relative;flex-shrink:0;display:grid;place-items:center}.ds-ring svg{position:absolute;inset:0;width:100%;transform:rotate(-90deg)}.ds-ring circle{fill:none;stroke-width:3}.ds-ring-track{stroke:var(--ds-color-surface-inset)}.ds-ring-value{stroke:var(--ds-color-brand-primary);stroke-linecap:round}.ds-ring strong{font-size:var(--ds-typography-h3-size)}.ds-avatar{display:inline-flex;width:2.75rem;height:2.75rem;flex-shrink:0;align-items:center;justify-content:center;overflow:hidden;border:2px solid var(--ds-color-surface);border-radius:var(--ds-radius-pill);background:var(--ds-color-brand-soft);color:var(--ds-color-brand-ink);font-size:var(--ds-typography-small-size);font-weight:var(--ds-typography-label-weight)}.ds-avatar img{width:100%;height:100%;object-fit:cover}.ds-pagination{justify-content:center;flex-wrap:wrap}.ds-accordion{border:1px solid var(--ds-color-border);border-radius:var(--ds-radius-md);background:var(--ds-color-surface)}.ds-accordion summary{min-height:var(--ds-layout-control-height);padding:var(--ds-spacing-4);display:flex;justify-content:space-between;gap:var(--ds-spacing-3);cursor:pointer;font-weight:var(--ds-typography-label-weight);list-style:none}.ds-accordion summary::-webkit-details-marker{display:none}.ds-accordion[open] summary svg{transform:rotate(90deg)}.ds-accordion>div{padding:0 var(--ds-spacing-4) var(--ds-spacing-4)}.ds-course-card{padding:var(--ds-spacing-3);display:flex;flex-direction:column;gap:var(--ds-spacing-5)}.ds-course-card>.ds-stack{padding:0 var(--ds-spacing-3) var(--ds-spacing-3)}.ds-course-art{height:9rem;border-radius:var(--ds-radius-md);background:var(--ds-color-brand-soft);color:var(--ds-color-brand-ink);position:relative;display:grid;place-items:center;overflow:hidden}.ds-course-art>svg{position:relative;z-index:var(--ds-z-index-sticky)}.ds-course-art span{position:absolute;width:9rem;height:9rem;border:1px solid var(--ds-color-brand-primary);border-radius:var(--ds-radius-xl);transform:rotate(-25deg);opacity:.18}.ds-course-art span:last-child{transform:rotate(25deg);width:13rem;height:13rem}.ds-continue{display:flex;align-items:center;gap:var(--ds-spacing-6);padding:var(--ds-spacing-8);background:var(--ds-color-brand-primary);color:var(--ds-color-text-inverse);border-color:transparent}.ds-continue>.ds-stack{flex:1}.ds-continue .ds-eyebrow{color:var(--ds-color-accent)}.ds-continue .ds-progress{max-width:23rem}.ds-continue .ds-progress-track{background:var(--ds-color-brand-hover)}.ds-continue .ds-progress-track>span{background:var(--ds-color-accent)}.ds-continue .ds-button{border-color:transparent}.ds-continue-art{width:9rem;height:10rem;display:grid;place-items:center;position:relative;color:var(--ds-color-accent);flex-shrink:0}.ds-art-spark{position:absolute;inset-block-start:0;inset-inline-end:0}.ds-lesson-row,.ds-plan-item{display:flex;align-items:center;gap:var(--ds-spacing-3);padding-block:var(--ds-spacing-4)}.ds-lesson-row+.ds-lesson-row,.ds-plan-item+.ds-plan-item{border-top:1px solid var(--ds-color-border)}.ds-plan-dot{flex-shrink:0;width:var(--ds-spacing-8);height:var(--ds-spacing-8);display:grid;place-items:center;border-radius:var(--ds-radius-pill);background:var(--ds-color-brand-soft);color:var(--ds-color-brand-ink)}.ds-quiz-option{display:flex;align-items:flex-start;gap:var(--ds-spacing-3);border:1px solid var(--ds-color-border-strong);border-radius:var(--ds-radius-md);padding:var(--ds-spacing-4);cursor:pointer}.ds-quiz-option:has(input:checked){border:2px solid var(--ds-color-brand-primary);padding:calc(var(--ds-spacing-4) - 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var(--ds-spacing-5)}.ds-logo{display:flex;align-items:center;gap:var(--ds-spacing-3);font-weight:750;font-size:1.5rem;letter-spacing:-.04em;color:var(--ds-color-brand-ink);text-decoration:none}.ds-logo-mark{display:grid;place-items:center;border-radius:var(--ds-radius-md);width:var(--ds-spacing-10);height:var(--ds-spacing-10);background:var(--ds-color-brand-primary);color:var(--ds-color-accent);flex-shrink:0}.ds-demo-nav{display:flex;flex-direction:column;gap:var(--ds-spacing-2)}.ds-demo-nav a{display:flex;gap:var(--ds-spacing-3);align-items:center;padding:var(--ds-spacing-3) var(--ds-spacing-4);border-radius:var(--ds-radius-md);color:var(--ds-color-text-secondary);font-size:var(--ds-typography-small-size);text-decoration:none;min-height:var(--ds-layout-control-height)}.ds-demo-nav 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var(--ds-color-border)}.ac-header-inner{height:64px;display:flex;align-items:center;gap:48px}.ac-brand{display:inline-flex;align-items:center;gap:8px;font-size:26px;font-weight:650;letter-spacing:-1px;text-decoration:none;color:var(--ds-color-brand-ink);white-space:nowrap}.ac-nav{display:flex;gap:28px;align-items:center;height:100%}.ac-nav a{display:flex;align-items:center;height:100%;font-size:14px;font-weight:500;text-decoration:none;border-bottom:2px solid transparent;padding-top:2px}.ac-nav a:hover,.ac-nav a[aria-current]{border-bottom-color:var(--ds-color-brand-ink)}.ac-header-actions{display:flex;gap:4px;margin-left:auto}.ac-icon-button{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;border:0;border-radius:100px;background:transparent;color:var(--ds-color-text-primary)}.ac-icon-button:hover{background:var(--ds-color-surface-inset)}.ac-menu-button,.ac-mobile-nav{display:none}.ac-site 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