.navbar{position:fixed;top:0;left:0;right:0;z-index:var(--z-sticky,100);transition:background-color .3s,box-shadow .3s}.navbar__inner{display:flex;align-items:center;gap:1rem;width:100%;max-width:75rem;margin:0 auto;padding:0 1.5rem;height:64px;min-width:0}.navbar__inner>.navbar__brand{margin-right:auto;text-decoration:none;color:inherit;flex-shrink:0;display:inline-flex;align-items:center;gap:.65rem}.navbar__brand 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h5{font-size:1.5rem}.navbar__brand-name{font-size:1.05rem}}.page-shell{width:100%;min-height:100vh;background:var(--surface);overflow:visible!important}.page-shell--narrow{max-width:56rem;margin-inline:auto}.page-shell--default,.page-shell--wide{max-width:100%}.page-header{display:grid;grid-gap:.35rem;gap:.35rem;-webkit-margin-after:1.5rem;margin-block-end:1.5rem}.page-header h4{margin:0;line-height:1.15}.page-header p{margin:0;opacity:.75}.onboarding-stepper{display:flex;min-height:100dvh}.onboarding-stepper__rail{display:none;flex-direction:column;gap:.25rem;padding:2rem 1.5rem;min-width:14rem}.onboarding-stepper__rail-item{display:flex;align-items:center;gap:.75rem;padding:.5rem .75rem;border-radius:1rem;cursor:default;transition:background .2s ease}.onboarding-stepper__rail-item--active{font-weight:600}.onboarding-stepper__rail-indicator{width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0;font-size:.75rem;font-weight:600}.onboarding-stepper__main{flex:1 1;display:flex;flex-direction:column;padding:2rem 1.5rem;max-width:44rem;margin:0 auto;width:100%}.onboarding-stepper__header{text-align:center;-webkit-margin-after:2rem;margin-block-end:2rem}.onboarding-stepper__options{display:grid;grid-gap:.75rem;gap:.75rem;grid-template-columns:1fr;align-content:start}.onboarding-stepper__option{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;min-height:3.5rem;cursor:pointer;text-align:left;border:1px solid var(--outline-variant);border-radius:1rem;transition:background .2s ease,border-color .2s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none}.onboarding-stepper__option:hover{background:var(--surface-container-high)}.onboarding-stepper__option[aria-pressed=true]{border-color:var(--primary)}.onboarding-stepper__option-text{display:flex;flex-direction:column;gap:.125rem;flex:1 1;min-width:0}.onboarding-stepper__footer{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 0;-webkit-margin-before:auto;margin-block-start:auto;position:-webkit-sticky;position:sticky;bottom:0;z-index:1}.onboarding-stepper__footer-spacer{width:5rem}@media (min-width:48rem){.onboarding-stepper__rail{display:flex}.onboarding-stepper__options{grid-template-columns:1fr 1fr}}.grade-controls{display:flex;gap:.75rem;flex-wrap:wrap;justify-content:center;width:100%}.grade-controls__btn{display:flex;flex-direction:column;align-items:center;gap:.25rem;flex:1 1;min-width:4.5rem;max-width:7rem;padding:.875rem .75rem;cursor:pointer;transition:opacity .2s ease;-webkit-user-select:none;-moz-user-select:none;user-select:none;text-align:center}.grade-controls__btn:hover{opacity:.85}.grade-controls__label{font-weight:600;font-size:.875rem}.grade-controls__sublabel{opacity:.6}.placement-quiz{display:flex;min-height:100dvh}.placement-quiz__sidebar{display:none;flex-direction:column;gap:1rem;padding:2rem 1.5rem;min-width:16rem}.placement-quiz__level-list{display:flex;flex-direction:column;gap:.25rem}.placement-quiz__level-item{display:flex;align-items:center;gap:.75rem;padding:.5rem .75rem;border-radius:.75rem}.placement-quiz__level-indicator{width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border-radius:50%;flex-shrink:0;font-size:.75rem;font-weight:600}.placement-quiz__main{flex:1 1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem 1.5rem;max-width:36rem;margin:0 auto;width:100%}.placement-quiz__progress-header{width:100%;text-align:center;-webkit-margin-after:2rem;margin-block-end:2rem}.placement-quiz__question{width:100%;text-align:center;-webkit-margin-after:1.5rem;margin-block-end:1.5rem}.placement-quiz__options{display:flex;flex-direction:column;gap:.75rem;width:100%}.placement-quiz__option{display:flex;align-items:center;justify-content:space-between;width:100%;padding:1rem 1.25rem;border-radius:1rem;text-align:left;cursor:pointer;transition:all .2s ease}.placement-quiz__feedback{display:flex;align-items:flex-start;gap:.75rem;width:100%;padding:1rem;border-radius:1rem;-webkit-margin-before:1rem;margin-block-start:1rem}.placement-quiz__actions{display:flex;gap:.75rem;-webkit-margin-before:1.5rem;margin-block-start:1.5rem}.placement-quiz__completion{display:flex;flex-direction:column;align-items:center;gap:1rem;text-align:center;padding:2rem}.placement-quiz__level-badge{width:6rem;height:6rem;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:1.5rem;font-weight:700}.placement-quiz__intro{display:flex;flex-direction:column;align-items:center;gap:1.5rem;text-align:center;padding:2rem}@media (min-width:48rem){.placement-quiz__sidebar{display:flex}}