:root{--bg: #EFF3F8;--fg: #1E293B;--primary: #003580;--primary-fg: #FFFFFF;--secondary: #E4ECF5;--secondary-fg: #1E293B;--muted: #EBF0F6;--muted-fg: #546070;--accent: #3BB54A;--accent-fg: #FFFFFF;--destructive: #EF4444;--card: #FFFFFF;--card-fg: #1E293B;--border: #CAD4E0;--ring: #3BB54A;--radius: 1rem;--orange: #F97316;--purple: #8B5CF6;--yellow: #EAB308;--shadow-sm: 0 1px 3px rgba(0,0,0,.07);--shadow-md: 0 4px 14px rgba(0,0,0,.1);--icon-muted-bg: #E4ECF5;--icon-danger-bg: #FEEDEE;--icon-yellow-bg: #FEF3C7;--icon-yellow-fg: #B45309;--icon-blue-bg: #DDEEFF;--icon-purple-bg: #EDE9FF}[data-theme=dark]{--bg: #0D1117;--fg: #E6EDF3;--primary: #4F8EF7;--primary-fg: #FFFFFF;--secondary: #1C2433;--secondary-fg: #8D96A0;--muted: #1C2433;--muted-fg: #8B949E;--accent: #3DD058;--accent-fg: #FFFFFF;--destructive: #F85149;--card: #161B22;--card-fg: #E6EDF3;--border: #2D333B;--ring: #3DD058;--orange: #FB923C;--purple: #A78BFA;--yellow: #D4A520;--shadow-sm: 0 1px 3px rgba(0,0,0,.4);--shadow-md: 0 4px 14px rgba(0,0,0,.6);--icon-muted-bg: #1C2433;--icon-danger-bg: rgba(248, 81, 73, .14);--icon-yellow-bg: rgba(212, 165, 32, .14);--icon-yellow-fg: #D4A520;--icon-blue-bg: rgba(79, 142, 247, .16);--icon-purple-bg: rgba(167, 139, 250, .14)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none}html{height:100%;background-color:var(--bg)}body{height:100%;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg);color:var(--fg);margin:0;padding:0;overscroll-behavior:none}#app{height:100%;display:flex;flex-direction:column;background-color:var(--bg);overflow:hidden}:root{--tg-viewport-stable-height: 100dvh;--tg-viewport-height: 100dvh;--tg-viewport-content-safe-area-inset-top: 0px;--tg-viewport-content-safe-area-inset-bottom: 0px;--tg-viewport-safe-area-inset-top: 0px;--tg-viewport-safe-area-inset-bottom: 0px}button{cursor:pointer;border:none;background:none;font-family:inherit;font-size:inherit;color:inherit}input{font-family:inherit;outline:none;border:none}button:focus-visible,input:focus-visible,[role=button]:focus-visible,a:focus-visible{outline:3px solid color-mix(in srgb,var(--ring) 70%,transparent);outline-offset:3px}p,h1,h2,h3,.question-text,.explanation{-webkit-user-select:text;user-select:text}img{display:block}::-webkit-scrollbar{display:none}*{scrollbar-width:none}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.tab-bar[data-v-c7e8202b]{position:fixed;bottom:0;left:0;right:0;background:#fffffff2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--border);padding:.5rem .75rem;padding-bottom:max(.75rem,var(--tg-viewport-safe-area-inset-bottom, env(safe-area-inset-bottom, 0px)));display:flex;justify-content:space-around;align-items:center;z-index:100;box-shadow:0 -5px 15px #00000008}[data-theme=dark] .tab-bar[data-v-c7e8202b]{background:#0d1117f2}.tab-item[data-v-c7e8202b]{display:flex;flex-direction:column;align-items:center;gap:.2rem;color:var(--muted-fg);transition:color .15s;padding:.25rem 1rem;flex:1}.tab-item.active[data-v-c7e8202b]{color:var(--primary)}.tab-icon[data-v-c7e8202b]{font-size:1.5rem;width:1.5rem;height:1.5rem}.tab-label[data-v-c7e8202b]{font-size:.6875rem;font-weight:600;letter-spacing:.02em}.app-layout[data-v-6e8e33a8]{height:var(--app-height, 100dvh);transition:height .25s ease-out;min-height:0;display:flex;flex-direction:column;background:var(--bg);overflow:hidden;padding-top:var(--tg-viewport-content-safe-area-inset-top, 0px)}.app-content[data-v-6e8e33a8]{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}.app-content.has-tab-bar[data-v-6e8e33a8]{padding-bottom:calc(3.25rem + max(.5rem,var(--tg-viewport-safe-area-inset-bottom, env(safe-area-inset-bottom, 0px))))}.desktop-block[data-v-b6308b5e]{min-height:100dvh;display:grid;place-items:center;padding:2rem;background:#0f172a}.desktop-card[data-v-b6308b5e]{width:min(100%,26rem);padding:3rem 2.5rem;display:grid;gap:1.25rem;justify-items:center;text-align:center;color:#f1f5f9;background:#1e293b;border:1px solid #334155;border-radius:2rem}.desktop-icon[data-v-b6308b5e]{font-size:4rem}.desktop-card h1[data-v-b6308b5e]{font-size:1.5rem;font-weight:800}.desktop-card p[data-v-b6308b5e]{color:#94a3b8;line-height:1.65}.desktop-tg[data-v-b6308b5e]{padding:.5rem 1.25rem;color:#29b6f6;background:#29b6f61a;border:1px solid rgb(41 182 246 / 20%);border-radius:999px;font-weight:700}.toast[data-v-b6308b5e]{position:fixed;left:50%;bottom:max(5.5rem,calc(env(safe-area-inset-bottom) + 5rem));z-index:9999;transform:translate(-50%);padding:.75rem 1.25rem;color:#f1f5f9;background:#1e293b;border-radius:999px;box-shadow:0 4px 16px #00000040;white-space:nowrap;pointer-events:none}.toast-enter-active[data-v-b6308b5e],.toast-leave-active[data-v-b6308b5e]{transition:opacity .2s,transform .2s}.toast-enter-from[data-v-b6308b5e],.toast-leave-to[data-v-b6308b5e]{opacity:0;transform:translate(-50%) translateY(.5rem)}@media(prefers-reduced-motion:reduce){.toast-enter-active[data-v-b6308b5e],.toast-leave-active[data-v-b6308b5e]{transition:none}}