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linear}}.fp-dialog-backdrop{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;padding:var(--s5);background:var(--scrim,rgb(0 0 0/45%))}.fp-dialog{width:100%}.fp-progress-trigger,.fp-translation-trigger{display:inline-flex;align-items:center;gap:var(--s2);padding:var(--s1) var(--s3);border-radius:var(--r-pill);border:var(--hairline);background:var(--surface-container);color:var(--on-surface);font-family:var(--type-label-large-font-family);font-size:var(--type-label-large-font-size);cursor:pointer;height:auto;min-height:2.25rem;white-space:nowrap;overflow:visible}.fp-progress-trigger:hover,.fp-translation-trigger:hover{background:var(--surface-container-high)}.fp-translation-trigger[data-active=true]{border-color:var(--primary)}.fp-translation-trigger[data-active=true],.fp-translation-trigger[data-active=true]:hover{background:var(--primary-container);color:var(--primary)}.fp-sheet-scrim{position:fixed;inset:0;z-index:40;display:flex;align-items:flex-end;justify-content:center;background:color-mix(in srgb,var(--on-surface) 40%,transparent)}.fp-sheet{inline-size:100%;max-block-size:80vh;overflow:auto;display:flex;flex-direction:column;gap:var(--s4);padding:var(--s5);background:var(--surface-container-high);color:var(--on-surface);border:var(--hairline);border-start-start-radius:var(--r-xl);border-start-end-radius:var(--r-xl);box-shadow:var(--el-3,none)}.fp-sheet__handle{align-self:center;inline-size:2.5rem;block-size:.25rem;border-radius:var(--r-pill);background:var(--outline-variant)}.fp-sheet__header{display:flex;align-items:center;justify-content:space-between;gap:var(--s3)}.fp-sheet__title{font-family:var(--type-title-medium-font-family);font-size:var(--type-title-medium-font-size);color:var(--on-surface)}.fp-sheet,.fp-sheet-scrim{--fp-ease-spring:linear(0,0.006,0.025 2.8%,0.101 6.1%,0.539 18.9%,0.721 25.3%,0.849 31.5%,0.937 38.1%,0.968 41.8%,0.991 45.7%,1.006 50.1%,1.015 55%,1.017 63.9%,1.001)}@keyframes fp-sheet-scrim-in{0%{opacity:0}to{opacity:1}}@keyframes fp-sheet-slide-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}.fp-sheet-scrim{animation:fp-sheet-scrim-in var(--motion-duration-standard,.2s) var(--motion-easing-standard,ease) both}.fp-sheet{animation:fp-sheet-slide-up var(--motion-duration-long,.45s) var(--fp-ease-spring,var(--motion-easing-emphasized,cubic-bezier(.05,.7,.1,1))) both;will-change:transform}@media (prefers-reduced-motion:reduce){.fp-sheet,.fp-sheet-scrim{animation:none}}.fp-aq-head{justify-content:space-between;gap:var(--s3)}.fp-aq-head,.fp-dialog-scrim{display:flex;align-items:center}.fp-dialog-scrim{position:fixed;inset:0;z-index:40;justify-content:center;padding:var(--s4);background:color-mix(in srgb,var(--on-surface) 40%,transparent);animation:fp-sheet-scrim-in var(--motion-duration-standard,.2s) var(--motion-easing-standard,ease) both}.fp-dialog{inline-size:100%;max-inline-size:32rem;max-block-size:min(80vh,40rem);display:flex;flex-direction:column;gap:var(--s4);padding:var(--s5);background:var(--surface-container-high);color:var(--on-surface);border:var(--hairline);border-radius:var(--r-xl);box-shadow:var(--el-3,none);animation:fp-dialog-in var(--motion-duration-medium,.3s) var(--motion-easing-emphasized,cubic-bezier(.05,.7,.1,1)) both}.fp-dialog__header{display:flex;align-items:center;justify-content:space-between;gap:var(--s3);flex-shrink:0}.fp-dialog__body{overflow-y:auto;margin-inline:calc(-1 * var(--s2));padding-inline:var(--s2)}.fp-recent__detail{display:flex;flex-direction:column;gap:.125rem;min-width:0}@keyframes fp-dialog-in{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}@media (prefers-reduced-motion:reduce){.fp-dialog,.fp-dialog-scrim{animation:none}}@media (max-width:640px){.fp-fab{position:fixed;inset-inline:0;inset-block-end:0;z-index:30;display:flex;margin:0;padding:var(--s3) var(--s4);-webkit-padding-after:max(var(--s3),env(safe-area-inset-bottom));padding-block-end:max(var(--s3),env(safe-area-inset-bottom));background:var(--surface-container);-webkit-border-before:var(--hairline);border-block-start:var(--hairline);box-shadow:none;border-radius:0}.fp-fab>*{flex:1 1 auto;width:100%}.fp-reading,.fp-root,.fp-root.fp-setup{padding:var(--s3);gap:var(--s4)}.fp-dialog,.fp-main>article,.fp-main>section,.fp-root>.fp-stack{padding:var(--s4)!important}.fp-dialog-backdrop,.fp-option{padding:var(--s3)}.fp-options{gap:var(--s3)}.fp-main article h1{font-size:var(--type-headline-small-font-size)!important;line-height:var(--type-headline-small-line-height)!important}.fp-meta{flex-wrap:nowrap;gap:var(--s2);min-width:0}.fp-meta-secondary{display:none}.fp-meta>.fp-mono{min-width:0;white-space:nowrap}.fp-main{-webkit-padding-after:calc(var(--s8) + var(--s8) + var(--s5) + env(safe-area-inset-bottom, 0px));padding-block-end:calc(var(--s8) + var(--s8) + var(--s5) + env(safe-area-inset-bottom, 0px))}.fp-setup__actions,.fp-setup__actions>.button{width:100%}.fp-card-meta{flex-wrap:nowrap;gap:var(--s2)}.fp-card-meta__detail{display:none}.fp-outcome{gap:var(--s4);padding-block:var(--s5)}.fp-outcome__icon{width:4rem;height:4rem}}@media (hover:none) and (pointer:coarse),(max-width:640px){.fp-grade-btn__hint,.fp-kbd-hint{display:none}}@media (max-width:1023px){.fp-aside{display:none}}@media (min-width:1024px){.fp-progress-trigger,.fp-sheet-scrim{display:none}}.fp-sample{display:flex;flex-direction:column;gap:var(--s5);width:100%}.fp-sample__head{display:flex;align-items:center;justify-content:space-between;gap:var(--s4);flex-wrap:wrap}.fp-sample__eyebrow{display:inline-flex;align-items:center;gap:var(--s2);font-family:var(--type-label-medium-font-family);font-size:var(--type-label-medium-font-size);font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--cat-ink,var(--primary))}.fp-sample__note{font-family:var(--type-body-small-font-family);font-size:var(--type-body-small-font-size);font-weight:400;letter-spacing:normal;text-transform:none;color:var(--on-surface-variant)}.fp-sample__cards{display:flex;flex-direction:column;gap:var(--s4)}.fp-sample__foot{display:flex;align-items:center;gap:var(--s2);padding:var(--s3) var(--s4);background:var(--surface-variant);border-radius:var(--r-md);color:var(--on-surface-variant)}.lesson-block-preview{display:flex;flex-direction:column;gap:1.5rem}