:root{color:#23382d;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--surface:#fffdf9;--soft:#ebece4;--muted:#58665d;--accent:#285a40;--on-accent:#fff;--warning:#7a352a;--warning-bg:#f9e9e3;--line:#d7dbd0;font-synthesis:none;text-rendering:optimizelegibility;background:#f6f3ed;font-family:system-ui,-apple-system,sans-serif;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:#e8ede4;--surface:#202e25;--soft:#2c3b30;--muted:#b7c4b9;--accent:#b6d5ab;--on-accent:#17281b;--warning:#f5bbb0;--warning-bg:#402e29;--line:#405044;background:#17221c}}*{box-sizing:border-box}body{min-width:280px;margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{background:var(--soft);min-height:48px;color:inherit;cursor:pointer;border:0;border-radius:12px;padding:10px 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span{background:var(--soft);border-radius:10px;height:48px;display:block}.auth-skeleton span:first-child{width:60%;height:16px}.auth-error{color:var(--warning)}.update-banner,.install-banner{background:var(--soft);border-radius:16px;flex-wrap:wrap;align-items:center;gap:16px;margin-top:16px;padding:16px;display:flex}.update-banner p{margin-bottom:0;font-size:.875rem}.debug dl{margin:0}.debug dl>div{border-bottom:1px solid var(--line);grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:16px;padding:12px 0;display:grid}.debug dd{overflow-wrap:anywhere;margin:0}.debug pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:.8rem}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:10;background:var(--surface);padding:16px;position:fixed;top:-80px;left:16px}.skip-link:focus{top:16px}@keyframes reveal{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@media (width>=640px){h1{font-size:2.25rem}.app-shell{padding-left:max(24px, env(safe-area-inset-left));padding-right:max(24px, env(safe-area-inset-right))}.flashcard{padding:36px}}@media (width>=768px){.learner-layout{grid-template-columns:minmax(0,3fr) minmax(0,2fr)}.today-pane{gap:20px;display:grid}.review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bottom-nav{border-radius:20px 20px 0 0;width:min(600px,100%);left:50%;right:auto;transform:translate(-50%)}.flashcard{min-height:420px}.session-actions{max-width:42rem;margin-inline:auto;position:static}}@media (width>=1024px){.app-shell{padding-left:max(32px, env(safe-area-inset-left));padding-right:max(32px, env(safe-area-inset-right))}.panel{padding:24px}.summary{gap:32px;padding:20px 24px}}@media 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