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span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.practice-skip{color:var(--secondary)}.practice-success{color:var(--success)}.practice-composer{display:flex;align-items:center;gap:8px}.practice-composer .typed-answer{flex:1;min-width:0}.practice-composer .typed-answer button{padding:0 14px}.practice-icon-button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--surface-container-high)}.practice-icon-button.primary{color:var(--primary)}.practice-icon-button.secondary{color:var(--secondary)}.practice-permission{display:flex;flex-direction:column;align-items:center;gap:var(--stack-gap);text-align:center}.practice-empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:64px 0;text-align:center;color:var(--on-surface-variant)}.practice-empty 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var(--outline-variant)}.rail-brand{display:flex;align-items:center;gap:10px;padding:0 8px 24px}.tab{flex:none;flex-direction:row;justify-content:flex-start;gap:14px;min-height:52px;padding:0 14px;border-radius:999px;font-size:16px}.tab.selected{background:var(--secondary-container)}.app-shell{padding-left:240px}.tab-content{padding-bottom:48px}}@font-face{font-family:Atkinson Hyperlegible Next;src:url(/app/fonts/AtkinsonHyperlegibleNext-Regular.ttf) format("truetype");font-weight:400;font-display:swap}@font-face{font-family:Atkinson Hyperlegible Next;src:url(/app/fonts/AtkinsonHyperlegibleNext-SemiBold.ttf) format("truetype");font-weight:600;font-display:swap}@font-face{font-family:Atkinson Hyperlegible Next;src:url(/app/fonts/AtkinsonHyperlegibleNext-ExtraBold.ttf) format("truetype");font-weight:800;font-display:swap}:root{color-scheme:light;--surface: #f3f5f1;--surface-dim: #dde3de;--surface-container-lowest: #ffffff;--surface-container-low: #eef2ee;--surface-container: #e5ece7;--surface-container-high: #dce5df;--on-surface: #17231f;--on-surface-variant: #4a5651;--outline: #6e7a75;--outline-variant: #c9d3ce;--primary: #0e5e57;--on-primary: #ffffff;--primary-container: #0a4540;--on-primary-container: #bfe0d8;--secondary: #4a5651;--secondary-container: #e5f0ec;--tertiary-container: #4a2e08;--on-tertiary-container: #a8690f;--error: #b4441e;--success: #157a47;--on-success: #ffffff;--native-text: #0e5e57;--tertiary-fixed: #fbebd2;--on-tertiary-fixed: #4a2e08;--primary-fixed: #dceae6;--primary-fixed-dim: #bfe0d8;--on-primary-fixed: #0a3d38;--copper: #e8a33d;--on-copper: #17231f;--patina: #0e5e57;--ink: #17231f;--mint: #bfe0d8;--copper-red: #b4441e;--radius-sm: 4px;--radius: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--container-padding: 20px;--stack-gap: 16px;--section-gap: 32px;--card-padding: 24px;--inline-gap: 12px;--shadow-ambient: 0 4px 20px rgba(23, 35, 31, .08);--shadow-flashcard: 0 8px 24px rgba(23, 35, 31, .16);--font-english: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", sans-serif;--font-native: system-ui, -apple-system, "Segoe UI", "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;--tabbar-height: 64px}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){color-scheme:dark;--surface: #0f1a17;--surface-dim: #0f1a17;--surface-container-lowest: #0a1311;--surface-container-low: #16231f;--surface-container: #1b2a25;--surface-container-high: #24342f;--on-surface: #e3ece8;--on-surface-variant: #b5c4be;--outline: #8a9993;--outline-variant: #3a4943;--primary: #7fcbbe;--on-primary: #00332e;--primary-container: #1f5a53;--on-primary-container: #d4f0e9;--secondary: #b5c4be;--secondary-container: #24403a;--tertiary-container: #5c3d0e;--on-tertiary-container: #f2bd6b;--error: #ffb59a;--success: #86d9a8;--on-success: #00331b;--native-text: #9fd9cc;--shadow-ambient: 0 4px 20px rgba(0, 0, 0, .35);--shadow-flashcard: 0 8px 24px rgba(0, 0, 0, .5)}}:root[data-theme=dark]{color-scheme:dark;--surface: #0f1a17;--surface-dim: #0f1a17;--surface-container-lowest: #0a1311;--surface-container-low: #16231f;--surface-container: #1b2a25;--surface-container-high: #24342f;--on-surface: #e3ece8;--on-surface-variant: #b5c4be;--outline: #8a9993;--outline-variant: #3a4943;--primary: #7fcbbe;--on-primary: #00332e;--primary-container: #1f5a53;--on-primary-container: #d4f0e9;--secondary: #b5c4be;--secondary-container: #24403a;--tertiary-container: #5c3d0e;--on-tertiary-container: #f2bd6b;--error: #ffb59a;--success: #86d9a8;--on-success: #00331b;--native-text: #9fd9cc;--shadow-ambient: 0 4px 20px rgba(0, 0, 0, .35);--shadow-flashcard: 0 8px 24px rgba(0, 0, 0, .5)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--surface);color:var(--on-surface);font-family:var(--font-english);font-size:17px;line-height:1.45;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;text-size-adjust:100%}#root{min-height:100dvh}button{font:inherit;color:inherit;background:none;border:none;padding:0;cursor:pointer}button:disabled{cursor:default}input,textarea,select{font:inherit;color:inherit}a{color:var(--primary)}:focus-visible{outline:3px solid var(--copper);outline-offset:2px}img{max-width:100%;display:block}.headline-large{font-size:30px;line-height:1.2;font-weight:800;letter-spacing:-.01em}.headline-medium{font-size:24px;line-height:1.25;font-weight:800}.headline-small{font-size:20px;line-height:1.3;font-weight:800}.body-large{font-size:19px;line-height:1.5;font-weight:400}.body-medium{font-size:17px;line-height:1.5;font-weight:400}.label-medium{font-size:15px;line-height:1.35;font-weight:600}.label-small{font-size:13px;line-height:1.35;font-weight:600}.native-body{font-family:var(--font-native);font-size:17px;line-height:1.45}.native-caption{font-family:var(--font-native);font-size:15px;line-height:1.4}.muted{color:var(--on-surface-variant)}.primary-text{color:var(--primary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}