@layer theme, base, components, utilities;@layer theme{@theme default{--font-sans:ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-serif:ui-serif,Georgia,Cambria,"Times New Roman",Times,serif;--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--color-red-50:oklch(0.971 0.013 17.38);--color-red-100:oklch(0.936 0.032 17.717);--color-red-200:oklch(0.885 0.062 18.334);--color-red-300:oklch(0.808 0.114 19.571);--color-red-400:oklch(0.704 0.191 22.216);--color-red-500:oklch(0.637 0.237 25.331);--color-red-600:oklch(0.577 0.245 27.325);--color-red-700:oklch(0.505 0.213 27.518);--color-red-800:oklch(0.444 0.177 26.899);--color-red-900:oklch(0.396 0.141 25.723);--color-red-950:oklch(0.258 0.092 26.042);--color-orange-50:oklch(0.98 0.016 73.684);--color-orange-100:oklch(0.954 0.038 75.164);--color-orange-200:oklch(0.901 0.076 70.697);--color-orange-300:oklch(0.837 0.128 66.29);--color-orange-400:oklch(0.75 0.183 55.934);--color-orange-500:oklch(0.705 0.213 47.604);--color-orange-600:oklch(0.646 0.222 41.116);--color-orange-700:oklch(0.553 0.195 38.402);--color-orange-800:oklch(0.47 0.157 37.304);--color-orange-900:oklch(0.408 0.123 38.172);--color-orange-950:oklch(0.266 0.079 36.259);--color-amber-50:oklch(0.987 0.022 95.277);--color-amber-100:oklch(0.962 0.059 95.617);--color-amber-200:oklch(0.924 0.12 95.746);--color-amber-300:oklch(0.879 0.169 91.605);--color-amber-400:oklch(0.828 0.189 84.429);--color-amber-500:oklch(0.769 0.188 70.08);--color-amber-600:oklch(0.666 0.179 58.318);--color-amber-700:oklch(0.555 0.163 48.998);--color-amber-800:oklch(0.473 0.137 46.201);--color-amber-900:oklch(0.414 0.112 45.904);--color-amber-950:oklch(0.279 0.077 45.635);--color-yellow-50:oklch(0.987 0.026 102.212);--color-yellow-100:oklch(0.973 0.071 103.193);--color-yellow-200:oklch(0.945 0.129 101.54);--color-yellow-300:oklch(0.905 0.182 98.111);--color-yellow-400:oklch(0.852 0.199 91.936);--color-yellow-500:oklch(0.795 0.184 86.047);--color-yellow-600:oklch(0.681 0.162 75.834);--color-yellow-700:oklch(0.554 0.135 66.442);--color-yellow-800:oklch(0.476 0.114 61.907);--color-yellow-900:oklch(0.421 0.095 57.708);--color-yellow-950:oklch(0.286 0.066 53.813);--color-lime-50:oklch(0.986 0.031 120.757);--color-lime-100:oklch(0.967 0.067 122.328);--color-lime-200:oklch(0.938 0.127 124.321);--color-lime-300:oklch(0.897 0.196 126.665);--color-lime-400:oklch(0.841 0.238 128.85);--color-lime-500:oklch(0.768 0.233 130.85);--color-lime-600:oklch(0.648 0.2 131.684);--color-lime-700:oklch(0.532 0.157 131.589);--color-lime-800:oklch(0.453 0.124 130.933);--color-lime-900:oklch(0.405 0.101 131.063);--color-lime-950:oklch(0.274 0.072 132.109);--color-green-50:oklch(0.982 0.018 155.826);--color-green-100:oklch(0.962 0.044 156.743);--color-green-200:oklch(0.925 0.084 155.995);--color-green-300:oklch(0.871 0.15 154.449);--color-green-400:oklch(0.792 0.209 151.711);--color-green-500:oklch(0.723 0.219 149.579);--color-green-600:oklch(0.627 0.194 149.214);--color-green-700:oklch(0.527 0.154 150.069);--color-green-800:oklch(0.448 0.119 151.328);--color-green-900:oklch(0.393 0.095 152.535);--color-green-950:oklch(0.266 0.065 152.934);--color-emerald-50:oklch(0.979 0.021 166.113);--color-emerald-100:oklch(0.95 0.052 163.051);--color-emerald-200:oklch(0.905 0.093 164.15);--color-emerald-300:oklch(0.845 0.143 164.978);--color-emerald-400:oklch(0.765 0.177 163.223);--color-emerald-500:oklch(0.696 0.17 162.48);--color-emerald-600:oklch(0.596 0.145 163.225);--color-emerald-700:oklch(0.508 0.118 165.612);--color-emerald-800:oklch(0.432 0.095 166.913);--color-emerald-900:oklch(0.378 0.077 168.94);--color-emerald-950:oklch(0.262 0.051 172.552);--color-teal-50:oklch(0.984 0.014 180.72);--color-teal-100:oklch(0.953 0.051 180.801);--color-teal-200:oklch(0.91 0.096 180.426);--color-teal-300:oklch(0.855 0.138 181.071);--color-teal-400:oklch(0.777 0.152 181.912);--color-teal-500:oklch(0.704 0.14 182.503);--color-teal-600:oklch(0.6 0.118 184.704);--color-teal-700:oklch(0.511 0.096 186.391);--color-teal-800:oklch(0.437 0.078 188.216);--color-teal-900:oklch(0.386 0.063 188.416);--color-teal-950:oklch(0.277 0.046 192.524);--color-cyan-50:oklch(0.984 0.019 200.873);--color-cyan-100:oklch(0.956 0.045 203.388);--color-cyan-200:oklch(0.917 0.08 205.041);--color-cyan-300:oklch(0.865 0.127 207.078);--color-cyan-400:oklch(0.789 0.154 211.53);--color-cyan-500:oklch(0.715 0.143 215.221);--color-cyan-600:oklch(0.609 0.126 221.723);--color-cyan-700:oklch(0.52 0.105 223.128);--color-cyan-800:oklch(0.45 0.085 224.283);--color-cyan-900:oklch(0.398 0.07 227.392);--color-cyan-950:oklch(0.302 0.056 229.695);--color-sky-50:oklch(0.977 0.013 236.62);--color-sky-100:oklch(0.951 0.026 236.824);--color-sky-200:oklch(0.901 0.058 230.902);--color-sky-300:oklch(0.828 0.111 230.318);--color-sky-400:oklch(0.746 0.16 232.661);--color-sky-500:oklch(0.685 0.169 237.323);--color-sky-600:oklch(0.588 0.158 241.966);--color-sky-700:oklch(0.5 0.134 242.749);--color-sky-800:oklch(0.443 0.11 240.79);--color-sky-900:oklch(0.391 0.09 240.876);--color-sky-950:oklch(0.293 0.066 243.157);--color-blue-50:oklch(0.97 0.014 254.604);--color-blue-100:oklch(0.932 0.032 255.585);--color-blue-200:oklch(0.882 0.059 254.128);--color-blue-300:oklch(0.809 0.105 251.813);--color-blue-400:oklch(0.707 0.165 254.624);--color-blue-500:oklch(0.623 0.214 259.815);--color-blue-600:oklch(0.546 0.245 262.881);--color-blue-700:oklch(0.488 0.243 264.376);--color-blue-800:oklch(0.424 0.199 265.638);--color-blue-900:oklch(0.379 0.146 265.522);--color-blue-950:oklch(0.282 0.091 267.935);--color-indigo-50:oklch(0.962 0.018 272.314);--color-indigo-100:oklch(0.93 0.034 272.788);--color-indigo-200:oklch(0.87 0.065 274.039);--color-indigo-300:oklch(0.785 0.115 274.713);--color-indigo-400:oklch(0.673 0.182 276.935);--color-indigo-500:oklch(0.585 0.233 277.117);--color-indigo-600:oklch(0.511 0.262 276.966);--color-indigo-700:oklch(0.457 0.24 277.023);--color-indigo-800:oklch(0.398 0.195 277.366);--color-indigo-900:oklch(0.359 0.144 278.697);--color-indigo-950:oklch(0.257 0.09 281.288);--color-violet-50:oklch(0.969 0.016 293.756);--color-violet-100:oklch(0.943 0.029 294.588);--color-violet-200:oklch(0.894 0.057 293.283);--color-violet-300:oklch(0.811 0.111 293.571);--color-violet-400:oklch(0.702 0.183 293.541);--color-violet-500:oklch(0.606 0.25 292.717);--color-violet-600:oklch(0.541 0.281 293.009);--color-violet-700:oklch(0.491 0.27 292.581);--color-violet-800:oklch(0.432 0.232 292.759);--color-violet-900:oklch(0.38 0.189 293.745);--color-violet-950:oklch(0.283 0.141 291.089);--color-purple-50:oklch(0.977 0.014 308.299);--color-purple-100:oklch(0.946 0.033 307.174);--color-purple-200:oklch(0.902 0.063 306.703);--color-purple-300:oklch(0.827 0.119 306.383);--color-purple-400:oklch(0.714 0.203 305.504);--color-purple-500:oklch(0.627 0.265 303.9);--color-purple-600:oklch(0.558 0.288 302.321);--color-purple-700:oklch(0.496 0.265 301.924);--color-purple-800:oklch(0.438 0.218 303.724);--color-purple-900:oklch(0.381 0.176 304.987);--color-purple-950:oklch(0.291 0.149 302.717);--color-fuchsia-50:oklch(0.977 0.017 320.058);--color-fuchsia-100:oklch(0.952 0.037 318.852);--color-fuchsia-200:oklch(0.903 0.076 319.62);--color-fuchsia-300:oklch(0.833 0.145 321.434);--color-fuchsia-400:oklch(0.74 0.238 322.16);--color-fuchsia-500:oklch(0.667 0.295 322.15);--color-fuchsia-600:oklch(0.591 0.293 322.896);--color-fuchsia-700:oklch(0.518 0.253 323.949);--color-fuchsia-800:oklch(0.452 0.211 324.591);--color-fuchsia-900:oklch(0.401 0.17 325.612);--color-fuchsia-950:oklch(0.293 0.136 325.661);--color-pink-50:oklch(0.971 0.014 343.198);--color-pink-100:oklch(0.948 0.028 342.258);--color-pink-200:oklch(0.899 0.061 343.231);--color-pink-300:oklch(0.823 0.12 346.018);--color-pink-400:oklch(0.718 0.202 349.761);--color-pink-500:oklch(0.656 0.241 354.308);--color-pink-600:oklch(0.592 0.249 0.584);--color-pink-700:oklch(0.525 0.223 3.958);--color-pink-800:oklch(0.459 0.187 3.815);--color-pink-900:oklch(0.408 0.153 2.432);--color-pink-950:oklch(0.284 0.109 3.907);--color-rose-50:oklch(0.969 0.015 12.422);--color-rose-100:oklch(0.941 0.03 12.58);--color-rose-200:oklch(0.892 0.058 10.001);--color-rose-300:oklch(0.81 0.117 11.638);--color-rose-400:oklch(0.712 0.194 13.428);--color-rose-500:oklch(0.645 0.246 16.439);--color-rose-600:oklch(0.586 0.253 17.585);--color-rose-700:oklch(0.514 0.222 16.935);--color-rose-800:oklch(0.455 0.188 13.697);--color-rose-900:oklch(0.41 0.159 10.272);--color-rose-950:oklch(0.271 0.105 12.094);--color-slate-50:oklch(0.984 0.003 247.858);--color-slate-100:oklch(0.968 0.007 247.896);--color-slate-200:oklch(0.929 0.013 255.508);--color-slate-300:oklch(0.869 0.022 252.894);--color-slate-400:oklch(0.704 0.04 256.788);--color-slate-500:oklch(0.554 0.046 257.417);--color-slate-600:oklch(0.446 0.043 257.281);--color-slate-700:oklch(0.372 0.044 257.287);--color-slate-800:oklch(0.279 0.041 260.031);--color-slate-900:oklch(0.208 0.042 265.755);--color-slate-950:oklch(0.129 0.042 264.695);--color-gray-50:oklch(0.985 0.002 247.839);--color-gray-100:oklch(0.967 0.003 264.542);--color-gray-200:oklch(0.928 0.006 264.531);--color-gray-300:oklch(0.872 0.01 258.338);--color-gray-400:oklch(0.707 0.022 261.325);--color-gray-500:oklch(0.551 0.027 264.364);--color-gray-600:oklch(0.446 0.03 256.802);--color-gray-700:oklch(0.373 0.034 259.733);--color-gray-800:oklch(0.278 0.033 256.848);--color-gray-900:oklch(0.21 0.034 264.665);--color-gray-950:oklch(0.13 0.028 261.692);--color-zinc-50:oklch(0.985 0 0);--color-zinc-100:oklch(0.967 0.001 286.375);--color-zinc-200:oklch(0.92 0.004 286.32);--color-zinc-300:oklch(0.871 0.006 286.286);--color-zinc-400:oklch(0.705 0.015 286.067);--color-zinc-500:oklch(0.552 0.016 285.938);--color-zinc-600:oklch(0.442 0.017 285.786);--color-zinc-700:oklch(0.37 0.013 285.805);--color-zinc-800:oklch(0.274 0.006 286.033);--color-zinc-900:oklch(0.21 0.006 285.885);--color-zinc-950:oklch(0.141 0.005 285.823);--color-neutral-50:oklch(0.985 0 0);--color-neutral-100:oklch(0.97 0 0);--color-neutral-200:oklch(0.922 0 0);--color-neutral-300:oklch(0.87 0 0);--color-neutral-400:oklch(0.708 0 0);--color-neutral-500:oklch(0.556 0 0);--color-neutral-600:oklch(0.439 0 0);--color-neutral-700:oklch(0.371 0 0);--color-neutral-800:oklch(0.269 0 0);--color-neutral-900:oklch(0.205 0 0);--color-neutral-950:oklch(0.145 0 0);--color-stone-50:oklch(0.985 0.001 106.423);--color-stone-100:oklch(0.97 0.001 106.424);--color-stone-200:oklch(0.923 0.003 48.717);--color-stone-300:oklch(0.869 0.005 56.366);--color-stone-400:oklch(0.709 0.01 56.259);--color-stone-500:oklch(0.553 0.013 58.071);--color-stone-600:oklch(0.444 0.011 73.639);--color-stone-700:oklch(0.374 0.01 67.558);--color-stone-800:oklch(0.268 0.007 34.298);--color-stone-900:oklch(0.216 0.006 56.043);--color-stone-950:oklch(0.147 0.004 49.25);--color-black:#000;--color-white:#fff;--spacing:0.25rem;--breakpoint-sm:40rem;--breakpoint-md:48rem;--breakpoint-lg:64rem;--breakpoint-xl:80rem;--breakpoint-2xl:96rem;--container-3xs:16rem;--container-2xs:18rem;--container-xs:20rem;--container-sm:24rem;--container-md:28rem;--container-lg:32rem;--container-xl:36rem;--container-2xl:42rem;--container-3xl:48rem;--container-4xl:56rem;--container-5xl:64rem;--container-6xl:72rem;--container-7xl:80rem;--text-xs:0.75rem;--text-xs--line-height:1.33333;--text-sm:0.875rem;--text-sm--line-height:1.42857;--text-base:1rem;--text-base--line-height:1.5;--text-lg:1.125rem;--text-lg--line-height:1.55556;--text-xl:1.25rem;--text-xl--line-height:1.4;--text-2xl:1.5rem;--text-2xl--line-height:1.33333;--text-3xl:1.875rem;--text-3xl--line-height:1.2;--text-4xl:2.25rem;--text-4xl--line-height:1.11111;--text-5xl:3rem;--text-5xl--line-height:1;--text-6xl:3.75rem;--text-6xl--line-height:1;--text-7xl:4.5rem;--text-7xl--line-height:1;--text-8xl:6rem;--text-8xl--line-height:1;--text-9xl:8rem;--text-9xl--line-height:1;--font-weight-thin:100;--font-weight-extralight:200;--font-weight-light:300;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--font-weight-black:900;--tracking-tighter:-0.05em;--tracking-tight:-0.025em;--tracking-normal:0em;--tracking-wide:0.025em;--tracking-wider:0.05em;--tracking-widest:0.1em;--leading-tight:1.25;--leading-snug:1.375;--leading-normal:1.5;--leading-relaxed:1.625;--leading-loose:2;--radius-xs:0.125rem;--radius-sm:0.25rem;--radius-md:0.375rem;--radius-lg:0.5rem;--radius-xl:0.75rem;--radius-2xl:1rem;--radius-3xl:1.5rem;--radius-4xl:2rem;--shadow-2xs:0 1px #0000000d;--shadow-xs:0 1px 2px 0 #0000000d;--shadow-sm:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -4px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a,0 8px 10px -6px #0000001a;--shadow-2xl:0 25px 50px -12px #00000040;--inset-shadow-2xs:inset 0 1px #0000000d;--inset-shadow-xs:inset 0 1px 1px #0000000d;--inset-shadow-sm:inset 0 2px 4px #0000000d;--drop-shadow-xs:0 1px 1px #0000000d;--drop-shadow-sm:0 1px 2px #00000026;--drop-shadow-md:0 3px 3px #0000001f;--drop-shadow-lg:0 4px 4px #00000026;--drop-shadow-xl:0 9px 7px #0000001a;--drop-shadow-2xl:0 25px 25px #00000026;--ease-in:cubic-bezier(0.4,0,1,1);--ease-out:cubic-bezier(0,0,0.2,1);--ease-in-out:cubic-bezier(0.4,0,0.2,1);--animate-spin:spin 1s linear infinite;--animate-ping:ping 1s cubic-bezier(0,0,0.2,1) infinite;--animate-pulse:pulse 2s cubic-bezier(0.4,0,0.6,1) infinite;--animate-bounce:bounce 1s infinite;@keyframes ping{75%,to{opacity:0;transform:scale(2)}}@keyframes pulse{50%{opacity:.5}}--blur-xs:4px;--blur-sm:8px;--blur-md:12px;--blur-lg:16px;--blur-xl:24px;--blur-2xl:40px;--blur-3xl:64px;--perspective-dramatic:100px;--perspective-near:300px;--perspective-normal:500px;--perspective-midrange:800px;--perspective-distant:1200px;--aspect-video:16/9;--default-transition-duration:150ms;--default-transition-timing-function:cubic-bezier(0.4,0,0.2,1);--default-font-family:var(--font-sans);--default-font-feature-settings:var(--font-sans--font-feature-settings);--default-font-variation-settings:var(
      --font-sans--font-variation-settings
    );--default-mono-font-family:var(--font-mono);--default-mono-font-feature-settings:var(
      --font-mono--font-feature-settings
    );--default-mono-font-variation-settings:var(
      --font-mono--font-variation-settings
    )}@theme default inline reference{--blur:8px;--shadow:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;--shadow-inner:inset 0 2px 4px 0 #0000000d;--drop-shadow:0 1px 2px #0000001a,0 1px 1px #0000000f;--radius:0.25rem;--max-width-prose:65ch}}@layer base{::-webkit-file-upload-button{border:0 solid;box-sizing:border-box;margin:0;padding:0}*,::backdrop,::file-selector-button,:after,:before{border:0 solid;box-sizing:border-box;margin:0;padding:0}:host,html{-webkit-text-size-adjust:100%;font-feature-settings:normal;font-feature-settings:var(--default-font-feature-settings,normal);-webkit-tap-highlight-color:transparent;font-family:ui-sans-serif,system-ui,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji;font-family:var(
      --default-font-family,ui-sans-serif,system-ui,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji"
    );font-variation-settings:normal;font-variation-settings:var(
      --default-font-variation-settings,normal
    );line-height:1.5;tab-size:4}body{line-height:inherit}hr{border-top-width:1px;color:inherit;height:0}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-feature-settings:normal;font-feature-settings:var(
      --default-mono-font-feature-settings,normal
    );font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-family:var(
      --default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace
    );font-size:1em;font-variation-settings:normal;font-variation-settings:var(
      --default-mono-font-variation-settings,normal
    )}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:initial}sub{bottom:-.25em}sup{top:-.5em}table{border-collapse:collapse;border-color:inherit;text-indent:0}:-moz-focusring{outline:auto}progress{vertical-align:initial}summary{display:list-item}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{display:block;vertical-align:middle}img,video{height:auto;max-width:100%}::-webkit-file-upload-button{font-feature-settings:inherit;background-color:initial;border-radius:0;color:inherit;font:inherit;font-variation-settings:inherit;letter-spacing:inherit;opacity:1}::file-selector-button,button,input,optgroup,select,textarea{font-feature-settings:inherit;background-color:initial;border-radius:0;color:inherit;font:inherit;font-variation-settings:inherit;letter-spacing:inherit;opacity:1}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{-webkit-padding-start:20px;padding-inline-start:20px}::-webkit-file-upload-button{-webkit-margin-end:4px;margin-inline-end:4px}::file-selector-button{-webkit-margin-end:4px;margin-inline-end:4px}::placeholder{color:color-mix(in oklab,currentColor 50%,#0000);opacity:1}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit,::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-meridiem-field,::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-minute-field,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-second-field,::-webkit-datetime-edit-year-field{padding-block:0}:-moz-ui-invalid{box-shadow:none}::-webkit-file-upload-button{-webkit-appearance:button;appearance:button}::file-selector-button,button,input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer utilities{@tailwind utilities}.hindi-content{direction:ltr;font-family:Noto Sans Devanagari,Mangal,Kruti Dev\ 010,DevLys\ 010,Arial,sans-serif;font-size:16px;line-height:1.6}.hindi-content h1,.hindi-content h2,.hindi-content h3{font-family:Noto Sans Devanagari,Mangal,Kruti Dev\ 010,sans-serif;font-weight:600}.hindi-content p{margin-bottom:12px}.subject-hindi .ai-response,.subject-hindi .chat-message,.subject-hindi .user-input{font-family:Noto Sans Devanagari,Mangal,Kruti Dev\ 010,DevLys\ 010,Arial,sans-serif;font-size:16px;line-height:1.6}@media (max-width:480px){body{font-size:14px;overflow-x:hidden}.container{padding:10px}.navbar{align-items:center;flex-direction:column}.ai-tutor,.chat-box{width:100%}}@media (max-width:768px){.sidebar{display:none}.main-content{padding:15px;width:100%}.chat-container,.input-container{flex-direction:column;width:100%}}@media (max-width:1024px){.header{padding:15px}.content{display:flex;flex-direction:column}.ai-tutor-section{margin:auto;max-width:900px}}@media (min-width:1440px){.container{margin:auto;max-width:1200px}.ai-tutor,.chat-box{margin:auto;max-width:1000px}}body,html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;box-sizing:border-box;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;height:auto;margin:0;min-height:100%;overflow-x:hidden;overflow-y:scroll;padding:0;width:100%}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.landing-dark{background:radial-gradient(circle at 18% 12%,#22d3ee24,#0000 28%),radial-gradient(circle at 82% 18%,#7c3aed29,#0000 30%),linear-gradient(180deg,#0b1220,#0f172a 52%,#111827);color:#e2e8f0;font-family:Satoshi,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.landing-glow{background:radial-gradient(180px circle at 55vw 24vh,#22d3ee2b,#0000 58%),radial-gradient(320px circle at 55vw 24vh,#7c3aed21,#0000 72%);background:radial-gradient(180px circle at var(--cursor-x,55vw) var(--cursor-y,24vh),#22d3ee2b,#0000 58%),radial-gradient(320px circle at var(--cursor-x,55vw) var(--cursor-y,24vh),#7c3aed21,#0000 72%);mix-blend-mode:screen}.hero-gradient-text{animation:heroGradientShift 8s linear infinite;background:linear-gradient(90deg,#fff,#8be9ff 45%,#c4b5fd);-webkit-background-clip:text;background-clip:text;background-size:160% 100%;color:#0000}.hero-scan-line{animation:heroScan 12s linear infinite;background:linear-gradient(110deg,#0000,#0000 44%,#22d3ee0f 50%,#0000 56%,#0000);inset:0;pointer-events:none;position:absolute}.hero-heading-bar{animation:heroBarSweep 5.5s ease-in-out infinite;background:linear-gradient(90deg,#22d3eecc,#7c3aed33,#0000);height:2px;width:min(260px,42vw)}.hero-reply-title{align-items:flex-start;display:inline-flex;flex-direction:column;gap:.02em;position:relative;text-rendering:geometricPrecision}.hero-reply-line{display:block;line-height:.98;margin:0;padding:0;white-space:nowrap}.hero-title-line-one{animation:heroLineReveal .55s ease-out forwards;opacity:0}.hero-title-line-two{-webkit-text-fill-color:#0000;animation:heroLineReveal .62s ease-out .12s forwards,heroTitleGradientRun 4s linear .9s infinite;background:linear-gradient(95deg,#7c3aed,#4f7df7 46%,#22d3ee);-webkit-background-clip:text;background-clip:text;background-size:180% 100%;color:#0000;letter-spacing:.005em;margin-top:-.04em;opacity:0}.hero-reply-word{animation:heroWordReply 6.4s cubic-bezier(.16,1,.3,1) infinite both;animation-delay:0s;animation-delay:var(--word-delay,0s);display:inline-block;filter:blur(10px);margin-right:.22em;opacity:0;transform:translate3d(0,.34em,0) scale(.96)}.hero-reply-gradient-word{-webkit-text-fill-color:#0000;animation-delay:0s,1.2s;animation-delay:var(--word-delay,0s),1.2s;animation-duration:6.4s,5s;animation-fill-mode:both,both;animation-iteration-count:1,infinite;animation-name:heroWordReply,heroTitleGradientRun;animation-timing-function:cubic-bezier(.16,1,.3,1),linear;background:linear-gradient(95deg,#7c3aed,#4f7df7 46%,#22d3ee);-webkit-background-clip:text;background-clip:text;background-size:180% 100%;color:#0000}.hero-reply-cursor{animation:heroCursorBlink .9s steps(2) infinite;animation-delay:1.05s;background:#67e8f9;border-radius:999px;box-shadow:0 0 18px #67e8f9bf;display:inline-block;height:.88em;margin-left:.03em;vertical-align:-.08em;width:.08em}.hero-fade-up{animation:heroFadeUp .7s ease-out forwards;opacity:0;transform:translate3d(0,14px,0)}.hero-orbit-float{animation:heroOrbitFloat 7s ease-in-out infinite}.ai-robot-float{animation:aiRobotFloat 6.5s ease-in-out infinite}.ai-robot-tilt{animation:aiRobotTilt 5.8s ease-in-out infinite}.ai-eye-blink{animation:aiEyeBlink 4.8s ease-in-out infinite;transform-origin:center}.ai-chip-flicker{animation:aiChipFlicker 2.2s ease-in-out infinite}.ai-console-scan{animation:aiConsoleScan 4.6s linear infinite;background:linear-gradient(180deg,#0000,#22d3ee14 46%,#0000 52%,#0000);inset:0;pointer-events:none;position:absolute}.ai-typing-line{animation:aiTyping 4.8s steps(58) infinite;border-right:2px solid #67e8f9cc;display:block;max-width:-webkit-max-content;max-width:max-content;overflow:hidden;white-space:nowrap;width:0}.ai-typing-line.delay-1{animation-delay:.9s}.ai-typing-line.delay-2{animation-delay:1.8s}.ai-typing-line.delay-3{animation-delay:2.7s}.ai-pdf-pulse{animation:aiPdfPulse 2.8s ease-in-out infinite}.ai-workflow-card{transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}.ai-workflow-card:hover{border-color:#67e8f952!important;box-shadow:0 24px 70px #02061747,0 0 34px #22d3ee1a;transform:translateY(-6px)}.ai-doc-insert{animation:aiDocInsert 4.8s ease-in-out infinite}.voice-wave span{animation:voiceWave 1.2s ease-in-out infinite}.voice-wave span:nth-child(2){animation-delay:.12s}.voice-wave span:nth-child(3){animation-delay:.24s}.voice-wave span:nth-child(4){animation-delay:.36s}.voice-wave span:nth-child(5){animation-delay:.48s}.ai-tutor-flow{background:radial-gradient(circle at 52% 40%,#22d3ee29,#0000 34%),radial-gradient(circle at 84% 72%,#7c3aed24,#0000 38%),linear-gradient(135deg,#0f172ae0,#020617c2);border:1px solid #67e8f929;box-shadow:0 28px 90px #02061757,inset 0 1px 0 #ffffff0f}.ai-flow-bg-grid{background-image:linear-gradient(rgba(103,232,249,.055) 1px,#0000 0),linear-gradient(90deg,rgba(103,232,249,.045) 1px,#0000 0);background-size:42px 42px;inset:0;-webkit-mask-image:radial-gradient(circle at 58% 48%,#000,#0000 72%);mask-image:radial-gradient(circle at 58% 48%,#000,#0000 72%);pointer-events:none;position:absolute}.ai-flow-stage{border-radius:30px;min-height:330px;position:relative}.ai-flow-orbit{animation:aiFlowOrbit 10s linear infinite;aspect-ratio:1;background:radial-gradient(circle,#22d3ee14,#0000 62%);border:1px solid #67e8f92e;border-radius:50%;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:min(82%,420px)}.ai-flow-orbit:after,.ai-flow-orbit:before{border:1px dashed #c4b5fd33;border-radius:50%;content:"";inset:12%;position:absolute}.ai-flow-orbit:after{border-color:#67e8f92e;inset:28%}.ai-flow-robot{align-items:center;animation:aiFlowRobotFloat 4s ease-in-out infinite;display:grid;height:82px;justify-items:center;left:46%;top:50%;width:82px;z-index:5}.ai-flow-robot,.ai-flow-robot-halo{position:absolute;transform:translate(-50%,-50%)}.ai-flow-robot-halo{animation:aiRobotHaloPulse 2.4s ease-in-out infinite;background:radial-gradient(circle,#22d3ee38,#7c3aed1a 44%,#0000 68%);border:1px solid #67e8f933;border-radius:50%;box-shadow:0 0 42px #22d3ee38;height:104px;left:50%;top:49%;width:104px;z-index:-1}.ai-flow-robot-head{background:radial-gradient(circle at 50% 15%,#ffffff2e,#0000 28%),linear-gradient(135deg,#6d5dfc,#20c7f5);border:1px solid #ffffff2e;border-radius:24px;box-shadow:0 0 34px #22d3ee6b,inset 0 -16px 28px #0f172a33;display:grid;height:66px;place-items:center;position:relative;width:74px}.ai-flow-robot-antenna{background:#67e8f9;box-shadow:0 0 12px #67e8f9d9;height:16px;top:-14px;width:2px}.ai-flow-robot-antenna,.ai-flow-robot-antenna:before{left:50%;position:absolute;transform:translateX(-50%)}.ai-flow-robot-antenna:before{background:#a78bfa;border-radius:50%;box-shadow:0 0 16px #a78bfab8;content:"";height:11px;top:-7px;width:11px}.ai-flow-robot-face{align-items:center;background:#020617b8;border:1px solid #67e8f92e;border-radius:15px;box-shadow:inset 0 0 18px #22d3ee2e;display:flex;gap:10px;height:34px;justify-content:center;position:relative;width:52px}.ai-flow-robot-eye{animation:aiRobotBlink 4s ease-in-out infinite;background:#67e8f9;border-radius:50%;box-shadow:0 0 12px #67e8f9f2;height:8px;width:8px}.ai-flow-robot-mouth{animation:aiRobotTalk 1.6s ease-in-out infinite;background:linear-gradient(90deg,#a78bfa,#67e8f9);border-radius:99px;bottom:7px;height:3px;left:50%;position:absolute;transform:translateX(-50%);width:20px}.ai-flow-inputs{left:0;position:absolute;top:34px;width:min(48%,260px);z-index:4}.ai-flow-input{grid-gap:12px;align-items:center;animation:aiInputPulse 4.2s ease-in-out infinite;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#0f172aa8;border:1px solid #67e8f929;border-radius:20px;box-shadow:0 16px 38px #0206173d;display:grid;gap:12px;grid-template-columns:42px 1fr;padding:12px;position:relative}.ai-flow-input:after{background:linear-gradient(90deg,#67e8f9d1,#67e8f914);box-shadow:0 0 14px #22d3ee47;content:"";height:2px;left:calc(100% - 2px);position:absolute;top:50%;transform:translateY(-50%);transform-origin:left center;width:clamp(74px,8vw,118px)}.ai-flow-input:before{animation:aiDoubtPacket 2.4s ease-in-out infinite;animation-delay:inherit;background:#67e8f9;border-radius:50%;box-shadow:0 0 18px #67e8f9e6;content:"";height:9px;left:calc(100% + 10px);position:absolute;top:50%;transform:translateY(-50%);width:9px}.ai-flow-input-icon{background:linear-gradient(135deg,#7c3aedeb,#22d3eeeb);border-radius:16px;box-shadow:0 0 20px #22d3ee2e;color:#ecfeff;display:grid;height:42px;place-items:center;width:42px}.ai-flow-prompt{color:#a5f3fc;display:inline-block;margin-top:5px;max-width:100%;overflow:hidden;white-space:nowrap}.ai-flow-input.voice .ai-flow-input-icon{animation:aiMicListen 1.3s ease-in-out infinite}.ai-flow-input.pdf .ai-flow-input-icon{animation:aiPdfSend 2.4s ease-in-out infinite}.ai-flow-answer{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0f172abd;border:1px solid #67e8f92e;border-radius:26px;box-shadow:0 20px 50px #02061747,inset 0 1px 0 #ffffff0f;min-height:240px;padding:28px;position:absolute;right:0;top:42px;width:min(54%,400px);z-index:4}.ai-flow-answer-bridge{background:linear-gradient(90deg,#67e8f9e6,#a78bfa38,#0000);box-shadow:0 0 16px #22d3ee52;height:2px;left:calc(46% + 42px);width:clamp(70px,9vw,126px);z-index:4}.ai-flow-answer-bridge,.ai-flow-bridge-pulse{position:absolute;top:50%;transform:translateY(-50%)}.ai-flow-bridge-pulse{animation:aiAnswerPacket 2.1s ease-in-out infinite;background:#a5f3fc;border-radius:50%;box-shadow:0 0 18px #67e8f9f2;height:10px;left:0;width:10px}.landing-gif-stage{transform-style:preserve-3d}.landing-gif-aura{animation:landingGifAura 5.8s ease-in-out infinite;background:radial-gradient(circle at 50% 42%,#22d3ee4d,#0000 46%),radial-gradient(circle at 67% 70%,#7c3aed3d,#0000 56%),radial-gradient(circle at 24% 68%,#0ea5e929,#0000 42%);filter:blur(34px);opacity:.9}.landing-gif-frame{animation:landingGifFloat 6.4s ease-in-out infinite;background:linear-gradient(145deg,#67e8f95c,#7c3aed2e 42%,#0f172ab8),#0f172a9e;border:2px solid #67e8f975;box-shadow:0 32px 95px #02061780,0 0 0 1px #7c3aed47,0 0 74px #22d3ee42,inset 0 1px 0 #ffffff1f,inset 0 -34px 70px #0f172a70;overflow:visible;transform:translateZ(0);transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s ease,border-color .45s ease}.landing-gif-frame:before{border:1px solid #ffffff1a;border-radius:inherit;box-shadow:inset 0 0 38px #0f172ab8;z-index:2}.landing-gif-frame:after,.landing-gif-frame:before{content:"";inset:8px;pointer-events:none;position:absolute}.landing-gif-frame:after{background:linear-gradient(180deg,#0206171a,#0000 28%,#0000 70%,#0206176b),linear-gradient(115deg,#0000,#0000 54%,#ffffff1a 54.5%,#0000 72%);border-radius:inherit;z-index:3}.landing-gif-image{background:radial-gradient(circle at 50% 40%,#0f172a47,#020617c2);box-shadow:inset 0 0 0 1px #ffffff14,0 12px 34px #02061747;position:relative;transition:transform .5s cubic-bezier(.2,.8,.2,1),filter .5s ease;z-index:1}.landing-gif-grid{background-image:linear-gradient(#67e8f914 1px,#0000 0),linear-gradient(90deg,#67e8f912 1px,#0000 0);background-size:38px 38px;border-radius:inherit;inset:8px;-webkit-mask-image:linear-gradient(180deg,#0000008c,#0000 64%);mask-image:linear-gradient(180deg,#0000008c,#0000 64%);opacity:.18;z-index:2}.landing-gif-grid,.landing-gif-orb{pointer-events:none;position:absolute}.landing-gif-orb{border:1px solid #67e8f942;border-radius:50%;z-index:4}.landing-gif-orb-one{animation:landingOrbFloat 5s ease-in-out infinite;background:radial-gradient(circle,#22d3ee1f,#0000 64%);height:88px;right:7%;top:10%;width:88px}.landing-gif-orb-two{animation:landingOrbFloat 5.8s ease-in-out infinite reverse;background:radial-gradient(circle,#7c3aed29,#0000 64%);bottom:16%;height:54px;left:8%;width:54px}.landing-gif-bottombar,.landing-gif-topbar{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#02061785;border:1px solid #ffffff1a;box-shadow:inset 0 1px 0 #ffffff0f;padding:10px 12px}.landing-gif-topbar{border-radius:999px}.landing-gif-floating-topbar{box-shadow:0 18px 44px #0206176b,0 0 30px #22d3ee2e,inset 0 1px 0 #ffffff14}.landing-gif-bottombar{border-radius:18px}.landing-gif-dot{background:#67e8f9;border-radius:50%;box-shadow:0 0 12px #67e8f9b3;height:7px;width:7px}.landing-gif-dot:nth-child(2){background:#a78bfa}.landing-gif-dot:nth-child(3){background:#22c55e}.landing-gif-live-pill{background:#14b8a621;border:1px solid #2dd4bf40;border-radius:999px;color:#a7f3d0;font-size:.72rem;font-weight:900;padding:7px 10px;white-space:nowrap}.landing-gif-shine{background:linear-gradient(115deg,#0000,#0000 38%,#ffffff38 49%,#67e8f91f 55%,#0000 66%,#0000);border-radius:inherit;inset:8px;opacity:0;pointer-events:none;position:absolute;transform:translateX(-62%) rotate(6deg);transition:opacity .25s ease,transform .75s ease;z-index:3}.landing-gif-stage:hover .landing-gif-frame{animation-play-state:paused;border-color:#67e8f9ad;box-shadow:0 38px 120px #0206177a,0 0 0 1px #7c3aed57,0 0 86px #22d3ee57,0 0 46px #7c3aed2e,inset 0 1px 0 #ffffff24;transform:translateY(-9px) scale(1.018) rotateX(2deg) rotateY(-3deg)}.landing-gif-stage:hover .landing-gif-image{filter:saturate(1.1) contrast(1.04);transform:scale(1.025)}.landing-gif-stage:hover .landing-gif-shine{opacity:1;transform:translateX(62%) rotate(6deg)}.landing-gif-card{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0f172abd!important;border:1px solid #67e8f942;box-shadow:0 18px 48px #02061761,inset 0 1px 0 #ffffff14;color:#fff;transition:transform .4s cubic-bezier(.2,.8,.2,1),border-color .4s ease,box-shadow .4s ease}.landing-gif-stage:hover .landing-gif-card{border-color:#67e8f96b;box-shadow:0 22px 54px #22d3ee29,inset 0 1px 0 #ffffff1a}.landing-gif-stage:hover .landing-gif-card-left{transform:translate3d(-8px,-8px,0) rotate(-3deg)}.landing-gif-stage:hover .landing-gif-card-right{transform:translate3d(8px,-8px,0) rotate(3deg)}.ai-avatar-shell{isolation:isolate;transition:transform .45s cubic-bezier(.2,.8,.2,1),filter .45s ease,box-shadow .45s ease}.ai-avatar-stage:hover .ai-avatar-shell{box-shadow:0 0 58px #22d3ee75,0 22px 88px #7c3aed42!important;filter:saturate(1.16) contrast(1.04);transform:translateX(-50%) translateY(-10px) scale(1.055) rotate(-1.5deg)}.ai-avatar-stage:hover .ai-avatar-image{transform:scale(1.07)}.ai-avatar-stage:hover .ai-avatar-signal{opacity:1;transform:translateX(-50%) translateY(-6px)}.ai-avatar-stage{perspective:900px}.ai-avatar-stage:hover .ai-robot-float,.ai-avatar-stage:hover .hero-orbit-float{animation-play-state:paused}.ai-avatar-stage:hover .ai-avatar-orbit{transform:rotateX(4deg) rotateY(-6deg) translateY(-7px)}.ai-avatar-stage:hover .ai-avatar-ring{opacity:1;transform:translateX(-50%) scale(1.08)}.ai-avatar-stage:hover .ai-avatar-float-card{border-color:#67e8f961!important;box-shadow:0 18px 42px #22d3ee29,inset 0 1px 0 #ffffff14}.ai-avatar-image{position:relative;transition:transform .55s cubic-bezier(.2,.8,.2,1);z-index:1}.ai-avatar-shine{background:linear-gradient(115deg,#0000,#0000 34%,#ffffff42 46%,#67e8f91f 52%,#0000 64%,#0000),radial-gradient(circle at 50% 105%,#22d3ee38,#0000 36%);border-radius:50%;inset:11px;opacity:0;pointer-events:none;position:absolute;transform:translateX(-42%) rotate(8deg);transition:opacity .28s ease,transform .7s ease;z-index:2}.ai-avatar-stage:hover .ai-avatar-shine{opacity:1;transform:translateX(42%) rotate(8deg)}.ai-avatar-ring{animation:aiAvatarRing 3.2s ease-in-out infinite;opacity:.62}.ai-avatar-ring,.ai-avatar-signal{transition:opacity .35s ease,transform .35s ease}.ai-avatar-signal{opacity:.72}.ai-avatar-float-card{transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease}.ai-avatar-stage:hover .avatar-card-left{transform:translate3d(-10px,-9px,0) rotate(-4deg)}.ai-avatar-stage:hover .avatar-card-right{transform:translate3d(10px,-9px,0) rotate(4deg)}.ai-avatar-stage:hover .avatar-card-bottom{transform:translateX(-50%) translateY(-8px) scale(1.03)}.ai-avatar-orbit{transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.8,.2,1)}@keyframes aiAvatarRing{0%,to{box-shadow:0 0 22px #22d3ee38}50%{box-shadow:0 0 46px #22d3ee70,0 0 78px #7c3aed2e}}@keyframes heroGradientShift{0%{background-position:0 50%}to{background-position:160% 50%}}@keyframes heroLineReveal{0%{filter:blur(8px);opacity:0;transform:translate3d(0,14px,0)}to{filter:blur(0);opacity:1;transform:translateZ(0)}}@keyframes heroWordReply{0%{filter:blur(10px);opacity:0;transform:translate3d(0,.34em,0) scale(.96)}9%{filter:blur(0);opacity:1;transform:translateZ(0) scale(1)}72%{filter:blur(0);opacity:1;transform:translateZ(0) scale(1)}84%,to{filter:blur(8px);opacity:0;transform:translate3d(0,-.16em,0) scale(.98)}}@keyframes heroTitleGradientRun{0%{background-position:0 50%}to{background-position:180% 50%}}@keyframes heroCursorBlink{0%,45%{opacity:1}46%,to{opacity:.16}}@keyframes heroFadeUp{to{opacity:1;transform:translateZ(0)}}@keyframes heroScan{0%{transform:translate3d(-18%,0,0)}to{transform:translate3d(18%,0,0)}}@keyframes heroBarSweep{0%,to{opacity:.65;transform:scaleX(.94)}50%{opacity:1;transform:scaleX(1)}}@keyframes heroOrbitFloat{0%,to{transform:translateZ(0)}50%{transform:translate3d(0,-8px,0)}}@keyframes aiRobotFloat{0%,to{transform:translateZ(0)}50%{transform:translate3d(0,-14px,0)}}@keyframes aiRobotTilt{0%,to{transform:rotate(0)}25%{transform:rotate(-1.4deg)}75%{transform:rotate(1.4deg)}}@keyframes aiEyeBlink{0%,43%,47%,to{opacity:1;transform:scaleY(1)}45%{opacity:.8;transform:scaleY(.1)}}@keyframes aiChipFlicker{0%,to{background:#ffffff1f;opacity:.3}50%{background:#22d3eeb8;opacity:1}}@keyframes aiConsoleScan{0%{transform:translateY(-100%)}to{transform:translateY(100%)}}@keyframes aiTyping{0%{opacity:.9;width:0}42%{opacity:1;width:100%}76%{opacity:1;width:100%}to{opacity:.9;width:0}}@keyframes aiPdfPulse{0%,to{border-color:#c4b5fd24;box-shadow:none}50%{border-color:#67e8f957;box-shadow:0 0 28px #22d3ee1f}}@keyframes aiDocInsert{0%{opacity:0;transform:translate3d(-26px,-14px,0) rotate(-8deg) scale(.9)}22%,70%{opacity:1;transform:translateZ(0) rotate(0deg) scale(1)}to{opacity:0;transform:translate3d(22px,12px,0) rotate(5deg) scale(.95)}}@keyframes voiceWave{0%,to{height:8px;opacity:.55}50%{height:24px;opacity:1}}@keyframes landingGifFloat{0%,to{transform:translateY(0) rotateX(0) rotateY(0)}50%{transform:translateY(-10px) rotateX(2deg) rotateY(-2deg)}}@keyframes landingGifAura{0%,to{opacity:.72;transform:scale(.96)}50%{opacity:1;transform:scale(1.04)}}@keyframes landingOrbFloat{0%,to{opacity:.58;transform:translateZ(0) scale(1)}50%{opacity:1;transform:translate3d(0,-12px,0) scale(1.08)}}@keyframes aiFlowOrbit{0%{transform:translate(-50%,-50%) rotate(0deg)}to{transform:translate(-50%,-50%) rotate(1turn)}}@keyframes aiFlowRobotFloat{0%,to{transform:translate(-50%,-50%) translateY(0)}50%{transform:translate(-50%,-50%) translateY(-10px)}}@keyframes aiInputPulse{0%,to{border-color:#67e8f929;transform:translateX(0)}50%{border-color:#67e8f961;transform:translateX(8px)}}@keyframes aiMicListen{0%,to{box-shadow:0 0 16px #22d3ee2e}50%{box-shadow:0 0 28px #22d3ee85}}@keyframes aiPdfSend{0%,to{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-4px) rotate(-4deg)}}@keyframes aiRobotHaloPulse{0%,to{opacity:.68;transform:translate(-50%,-50%) scale(.95)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.08)}}@keyframes aiRobotBlink{0%,42%,46%,to{transform:scaleY(1)}44%{transform:scaleY(.18)}}@keyframes aiRobotTalk{0%,to{opacity:.72;width:20px}50%{opacity:1;width:31px}}@keyframes aiDoubtPacket{0%{opacity:0;transform:translateY(-50%) translateX(0) scale(.6)}20%{opacity:1}74%{opacity:1;transform:translateY(-50%) translateX(clamp(50px,6vw,88px)) scale(1)}to{opacity:0;transform:translateY(-50%) translateX(clamp(62px,7vw,104px)) scale(.5)}}@keyframes aiAnswerPacket{0%{left:0;opacity:0;transform:translateY(-50%) scale(.65)}18%{opacity:1}78%{left:calc(100% - 10px);opacity:1;transform:translateY(-50%) scale(1)}to{left:calc(100% - 10px);opacity:0;transform:translateY(-50%) scale(.65)}}@media (max-width:899px){.ai-flow-stage{min-height:580px}.ai-flow-robot{left:50%;top:40%}.ai-flow-inputs{left:0;right:0;top:0;width:100%}.ai-flow-answer-bridge,.ai-flow-input:after,.ai-flow-input:before{display:none}.ai-flow-answer{bottom:0;left:0;right:0;top:auto;width:100%}}.robot-teach-content{animation:robotTeachFade 3s ease-in-out infinite}@keyframes robotTeachFade{0%,to{opacity:.7}50%{opacity:1}}.robot-formula{animation:robotFormulaGlow 2.5s ease-in-out infinite}@keyframes robotFormulaGlow{0%,to{color:#67e8f9;text-shadow:0 0 20px #67e8f999}50%{color:#a5f3fc;text-shadow:0 0 40px #67e8f9,0 0 60px #7c3aed99}}.robot-code-bar{animation:robotCodePulse 1.8s ease-in-out infinite}@keyframes robotCodePulse{0%,to{opacity:.4;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.8)}}.robot-scan-line{animation:robotScan 2.2s linear infinite}@keyframes robotScan{0%{top:-2px}to{top:100%}}.robot-eye{animation:robotEyeGlow 2s ease-in-out infinite}@keyframes robotEyeGlow{0%,90%,to{box-shadow:0 0 18px #67e8f9cc,0 0 40px #67e8f966;opacity:1}95%{box-shadow:0 0 4px #67e8f94d,0 0 8px #67e8f91a;opacity:.2}}.robot-mouth-bar{animation:robotMouthBounce .8s ease-in-out infinite;height:8px}.robot-mouth-bar:first-child{animation-delay:0s;height:6px}.robot-mouth-bar:nth-child(2){animation-delay:.15s;height:12px}.robot-mouth-bar:nth-child(3){animation-delay:.3s;height:8px}.robot-mouth-bar:nth-child(4){animation-delay:.45s;height:14px}@keyframes robotMouthBounce{0%,to{opacity:.5;transform:scaleY(.5)}50%{opacity:1;transform:scaleY(1.4)}}.ai-robot-float{animation:robotFloat 4s ease-in-out infinite}@keyframes robotFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}:root{--toastify-color-light:#fff;--toastify-color-dark:#121212;--toastify-color-info:#3498db;--toastify-color-success:#07bc0c;--toastify-color-warning:#f1c40f;--toastify-color-error:#e74d3c;--toastify-color-transparent:#ffffffb3;--toastify-icon-color-info:var(--toastify-color-info);--toastify-icon-color-success:var(--toastify-color-success);--toastify-icon-color-warning:var(--toastify-color-warning);--toastify-icon-color-error:var(--toastify-color-error);--toastify-container-width:fit-content;--toastify-toast-width:320px;--toastify-toast-offset:16px;--toastify-toast-top:max(var(--toastify-toast-offset),env(safe-area-inset-top));--toastify-toast-right:max(var(--toastify-toast-offset),env(safe-area-inset-right));--toastify-toast-left:max(var(--toastify-toast-offset),env(safe-area-inset-left));--toastify-toast-bottom:max(var(--toastify-toast-offset),env(safe-area-inset-bottom));--toastify-toast-background:#fff;--toastify-toast-padding:14px;--toastify-toast-min-height:64px;--toastify-toast-max-height:800px;--toastify-toast-bd-radius:6px;--toastify-toast-shadow:0px 4px 12px #0000001a;--toastify-font-family:sans-serif;--toastify-z-index:9999;--toastify-text-color-light:#757575;--toastify-text-color-dark:#fff;--toastify-text-color-info:#fff;--toastify-text-color-success:#fff;--toastify-text-color-warning:#fff;--toastify-text-color-error:#fff;--toastify-spinner-color:#616161;--toastify-spinner-color-empty-area:#e0e0e0;--toastify-color-progress-light:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);--toastify-color-progress-dark:#bb86fc;--toastify-color-progress-info:var(--toastify-color-info);--toastify-color-progress-success:var(--toastify-color-success);--toastify-color-progress-warning:var(--toastify-color-warning);--toastify-color-progress-error:var(--toastify-color-error);--toastify-color-progress-bgo:0.2}.Toastify__toast-container{box-sizing:border-box;color:#fff;display:flex;flex-direction:column;position:fixed;-webkit-transform:translateZ(9999);-webkit-transform:translateZ(var(--toastify-z-index));width:-webkit-fit-content;width:fit-content;width:var(--toastify-container-width);z-index:9999;z-index:var(--toastify-z-index)}.Toastify__toast-container--top-left{left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--top-center{align-items:center;left:50%;top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top);transform:translateX(-50%)}.Toastify__toast-container--top-right{align-items:end;right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right);top:max(16px,env(safe-area-inset-top));top:var(--toastify-toast-top)}.Toastify__toast-container--bottom-left{bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:max(16px,env(safe-area-inset-left));left:var(--toastify-toast-left)}.Toastify__toast-container--bottom-center{align-items:center;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);left:50%;transform:translateX(-50%)}.Toastify__toast-container--bottom-right{align-items:end;bottom:max(16px,env(safe-area-inset-bottom));bottom:var(--toastify-toast-bottom);right:max(16px,env(safe-area-inset-right));right:var(--toastify-toast-right)}.Toastify__toast{--y:0;align-items:center;border-radius:6px;border-radius:var(--toastify-toast-bd-radius);box-shadow:0 4px 12px #0000001a;box-shadow:var(--toastify-toast-shadow);box-sizing:border-box;display:flex;flex:1 1 auto;font-family:sans-serif;font-family:var(--toastify-font-family);margin-bottom:1rem;max-height:800px;max-height:var(--toastify-toast-max-height);min-height:64px;min-height:var(--toastify-toast-min-height);padding:14px;padding:var(--toastify-toast-padding);position:relative;touch-action:none;width:320px;width:var(--toastify-toast-width);word-break:break-word;z-index:0}@media only screen and (max-width:480px){.Toastify__toast-container{left:env(safe-area-inset-left);margin:0;width:100vw}.Toastify__toast-container--top-center,.Toastify__toast-container--top-left,.Toastify__toast-container--top-right{top:env(safe-area-inset-top);transform:translateX(0)}.Toastify__toast-container--bottom-center,.Toastify__toast-container--bottom-left,.Toastify__toast-container--bottom-right{bottom:env(safe-area-inset-bottom);transform:translateX(0)}.Toastify__toast-container--rtl{left:auto;right:env(safe-area-inset-right)}.Toastify__toast{--toastify-toast-width:100%;border-radius:0;margin-bottom:0}}.Toastify__toast-container[data-stacked=true]{width:320px;width:var(--toastify-toast-width)}.Toastify__toast--stacked{position:absolute;transform:translate3d(0,var(--y),0) scale(var(--s));transition:transform .3s;width:100%}.Toastify__toast--stacked[data-collapsed] .Toastify__close-button,.Toastify__toast--stacked[data-collapsed] .Toastify__toast-body{transition:opacity .1s}.Toastify__toast--stacked[data-collapsed=false]{overflow:visible}.Toastify__toast--stacked[data-collapsed=true]:not(:last-child)>*{opacity:0}.Toastify__toast--stacked:after{bottom:100%;content:"";height:calc(var(--g)*1px);left:0;position:absolute;right:0}.Toastify__toast--stacked[data-pos=top]{top:0}.Toastify__toast--stacked[data-pos=bot]{bottom:0}.Toastify__toast--stacked[data-pos=bot].Toastify__toast--stacked:before{transform-origin:top}.Toastify__toast--stacked[data-pos=top].Toastify__toast--stacked:before{transform-origin:bottom}.Toastify__toast--stacked:before{bottom:0;content:"";height:100%;left:0;position:absolute;right:0;transform:scaleY(3);z-index:-1}.Toastify__toast--rtl{direction:rtl}.Toastify__toast--close-on-click{cursor:pointer}.Toastify__toast-icon{-webkit-margin-end:10px;display:flex;flex-shrink:0;margin-inline-end:10px;width:22px}.Toastify--animate{animation-duration:.5s;animation-fill-mode:both}.Toastify--animate-icon{animation-duration:.3s;animation-fill-mode:both}.Toastify__toast-theme--dark{background:#121212;background:var(--toastify-color-dark);color:#fff;color:var(--toastify-text-color-dark)}.Toastify__toast-theme--colored.Toastify__toast--default,.Toastify__toast-theme--light{background:#fff;background:var(--toastify-color-light);color:#757575;color:var(--toastify-text-color-light)}.Toastify__toast-theme--colored.Toastify__toast--info{background:#3498db;background:var(--toastify-color-info);color:#fff;color:var(--toastify-text-color-info)}.Toastify__toast-theme--colored.Toastify__toast--success{background:#07bc0c;background:var(--toastify-color-success);color:#fff;color:var(--toastify-text-color-success)}.Toastify__toast-theme--colored.Toastify__toast--warning{background:#f1c40f;background:var(--toastify-color-warning);color:#fff;color:var(--toastify-text-color-warning)}.Toastify__toast-theme--colored.Toastify__toast--error{background:#e74d3c;background:var(--toastify-color-error);color:#fff;color:var(--toastify-text-color-error)}.Toastify__progress-bar-theme--light{background:linear-gradient(90deg,#4cd964,#5ac8fa,#007aff,#34aadc,#5856d6,#ff2d55);background:var(--toastify-color-progress-light)}.Toastify__progress-bar-theme--dark{background:#bb86fc;background:var(--toastify-color-progress-dark)}.Toastify__progress-bar--info{background:#3498db;background:var(--toastify-color-progress-info)}.Toastify__progress-bar--success{background:#07bc0c;background:var(--toastify-color-progress-success)}.Toastify__progress-bar--warning{background:#f1c40f;background:var(--toastify-color-progress-warning)}.Toastify__progress-bar--error{background:#e74d3c;background:var(--toastify-color-progress-error)}.Toastify__progress-bar-theme--colored.Toastify__progress-bar--error,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--info,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--success,.Toastify__progress-bar-theme--colored.Toastify__progress-bar--warning{background:#ffffffb3;background:var(--toastify-color-transparent)}.Toastify__close-button{background:#0000;border:none;color:#fff;cursor:pointer;opacity:.7;outline:none;padding:0;position:absolute;right:6px;top:6px;transition:.3s ease;z-index:1}.Toastify__toast--rtl .Toastify__close-button{left:6px;right:auto}.Toastify__close-button--light{color:#000;opacity:.3}.Toastify__close-button>svg{fill:currentColor;height:16px;width:14px}.Toastify__close-button:focus,.Toastify__close-button:hover{opacity:1}@keyframes Toastify__trackProgress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.Toastify__progress-bar{bottom:0;height:100%;left:0;opacity:.7;position:absolute;transform-origin:left;width:100%;z-index:1}.Toastify__progress-bar--animated{animation:Toastify__trackProgress linear 1 forwards}.Toastify__progress-bar--controlled{transition:transform .2s}.Toastify__progress-bar--rtl{border-bottom-left-radius:0;left:auto;right:0;transform-origin:right}.Toastify__progress-bar--wrp{border-bottom-left-radius:6px;border-bottom-left-radius:var(--toastify-toast-bd-radius);border-bottom-right-radius:6px;border-bottom-right-radius:var(--toastify-toast-bd-radius);bottom:0;height:5px;left:0;overflow:hidden;position:absolute;width:100%}.Toastify__progress-bar--wrp[data-hidden=true]{opacity:0}.Toastify__progress-bar--bg{height:100%;opacity:.2;opacity:var(--toastify-color-progress-bgo);width:100%}.Toastify__spinner{animation:Toastify__spin .65s linear infinite;border:2px solid #e0e0e0;border-color:var(--toastify-spinner-color-empty-area);border-radius:100%;border-right-color:#616161;border-right-color:var(--toastify-spinner-color);box-sizing:border-box;height:20px;width:20px}@keyframes Toastify__bounceInRight{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutRight{20%{opacity:1;transform:translate3d(-20px,var(--y),0)}to{opacity:0;transform:translate3d(2000px,var(--y),0)}}@keyframes Toastify__bounceInLeft{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(-3000px,0,0)}60%{opacity:1;transform:translate3d(25px,0,0)}75%{transform:translate3d(-10px,0,0)}90%{transform:translate3d(5px,0,0)}to{transform:none}}@keyframes Toastify__bounceOutLeft{20%{opacity:1;transform:translate3d(20px,var(--y),0)}to{opacity:0;transform:translate3d(-2000px,var(--y),0)}}@keyframes Toastify__bounceInUp{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,3000px,0)}60%{opacity:1;transform:translate3d(0,-20px,0)}75%{transform:translate3d(0,10px,0)}90%{transform:translate3d(0,-5px,0)}to{transform:translateZ(0)}}@keyframes Toastify__bounceOutUp{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,-2000px,0)}}@keyframes Toastify__bounceInDown{0%,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1)}0%{opacity:0;transform:translate3d(0,-3000px,0)}60%{opacity:1;transform:translate3d(0,25px,0)}75%{transform:translate3d(0,-10px,0)}90%{transform:translate3d(0,5px,0)}to{transform:none}}@keyframes Toastify__bounceOutDown{20%{transform:translate3d(0,calc(var(--y) - 10px),0)}40%,45%{opacity:1;transform:translate3d(0,calc(var(--y) + 20px),0)}to{opacity:0;transform:translate3d(0,2000px,0)}}.Toastify__bounce-enter--bottom-left,.Toastify__bounce-enter--top-left{animation-name:Toastify__bounceInLeft}.Toastify__bounce-enter--bottom-right,.Toastify__bounce-enter--top-right{animation-name:Toastify__bounceInRight}.Toastify__bounce-enter--top-center{animation-name:Toastify__bounceInDown}.Toastify__bounce-enter--bottom-center{animation-name:Toastify__bounceInUp}.Toastify__bounce-exit--bottom-left,.Toastify__bounce-exit--top-left{animation-name:Toastify__bounceOutLeft}.Toastify__bounce-exit--bottom-right,.Toastify__bounce-exit--top-right{animation-name:Toastify__bounceOutRight}.Toastify__bounce-exit--top-center{animation-name:Toastify__bounceOutUp}.Toastify__bounce-exit--bottom-center{animation-name:Toastify__bounceOutDown}@keyframes Toastify__zoomIn{0%{opacity:0;transform:scale3d(.3,.3,.3)}50%{opacity:1}}@keyframes Toastify__zoomOut{0%{opacity:1}50%{opacity:0;transform:translate3d(0,var(--y),0) scale3d(.3,.3,.3)}to{opacity:0}}.Toastify__zoom-enter{animation-name:Toastify__zoomIn}.Toastify__zoom-exit{animation-name:Toastify__zoomOut}@keyframes Toastify__flipIn{0%{animation-timing-function:ease-in;opacity:0;transform:perspective(400px) rotateX(90deg)}40%{animation-timing-function:ease-in;transform:perspective(400px) rotateX(-20deg)}60%{opacity:1;transform:perspective(400px) rotateX(10deg)}80%{transform:perspective(400px) rotateX(-5deg)}to{transform:perspective(400px)}}@keyframes Toastify__flipOut{0%{transform:translate3d(0,var(--y),0) perspective(400px)}30%{opacity:1;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(-20deg)}to{opacity:0;transform:translate3d(0,var(--y),0) perspective(400px) rotateX(90deg)}}.Toastify__flip-enter{animation-name:Toastify__flipIn}.Toastify__flip-exit{animation-name:Toastify__flipOut}@keyframes Toastify__slideInRight{0%{transform:translate3d(110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInLeft{0%{transform:translate3d(-110%,0,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInUp{0%{transform:translate3d(0,110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideInDown{0%{transform:translate3d(0,-110%,0);visibility:visible}to{transform:translate3d(0,var(--y),0)}}@keyframes Toastify__slideOutRight{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutLeft{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(-110%,var(--y),0);visibility:hidden}}@keyframes Toastify__slideOutDown{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,500px,0);visibility:hidden}}@keyframes Toastify__slideOutUp{0%{transform:translate3d(0,var(--y),0)}to{transform:translate3d(0,-500px,0);visibility:hidden}}.Toastify__slide-enter--bottom-left,.Toastify__slide-enter--top-left{animation-name:Toastify__slideInLeft}.Toastify__slide-enter--bottom-right,.Toastify__slide-enter--top-right{animation-name:Toastify__slideInRight}.Toastify__slide-enter--top-center{animation-name:Toastify__slideInDown}.Toastify__slide-enter--bottom-center{animation-name:Toastify__slideInUp}.Toastify__slide-exit--bottom-left,.Toastify__slide-exit--top-left{animation-duration:.3s;animation-name:Toastify__slideOutLeft;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-right,.Toastify__slide-exit--top-right{animation-duration:.3s;animation-name:Toastify__slideOutRight;animation-timing-function:ease-in}.Toastify__slide-exit--top-center{animation-duration:.3s;animation-name:Toastify__slideOutUp;animation-timing-function:ease-in}.Toastify__slide-exit--bottom-center{animation-duration:.3s;animation-name:Toastify__slideOutDown;animation-timing-function:ease-in}@keyframes Toastify__spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.ai-tutor-header{box-shadow:0 2px 8px #4557f333;color:#4557f3;height:40px;padding:.5rem 1rem;position:relative}@keyframes pulseGreen{0%{box-shadow:0 0 0 0 #4caf5066;transform:scale(1)}70%{box-shadow:0 0 0 10px #4caf5000;transform:scale(1.05)}to{box-shadow:0 0 0 0 #4caf5000;transform:scale(1)}}.mic-button-active{animation:pulseGreen 1.5s infinite;background-color:#4caf5033!important;border:1px solid #4caf5080!important;color:#4caf50!important}.logo{font-family:Orbitron,sans-serif;font-size:1.2rem;font-weight:700;letter-spacing:2px}.Sub-logo{font-size:.8rem;margin-left:.5rem;opacity:.8}.header-right{align-items:center;display:flex;gap:.75rem}.header-button{background:#0000;border:1px solid #2a91ff;border-radius:4px;color:#2a91ff;cursor:pointer;font-size:.8rem;font-weight:600;padding:.25rem .75rem;text-decoration:none;transition:background .2s ease,color .2s ease}.header-button:hover{background:#2a91ff;color:#fff}.mobile-menu{position:relative}.hamburger{background:#0000;border:none;color:#4557f3;cursor:pointer;font-size:1.2rem;padding:.25rem}.mobile-dropdown{background:#21242a;border-radius:4px;box-shadow:0 4px 12px #0000004d;display:flex;flex-direction:column;min-width:150px;position:absolute;right:0;top:100%;z-index:101}.mobile-dropdown .header-button{border-bottom:1px solid #4557f333;border-left:none;border-radius:0;border-right:none;padding:.5rem .75rem;text-align:left}.mobile-dropdown .header-button:last-child{border-bottom:none}.mobile-mic-active{animation:pulseMobileMic 1.5s infinite;background-color:#4caf5033!important;color:#4caf50!important}@keyframes pulseMobileMic{0%{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}to{opacity:1;transform:scale(1)}}.light-theme .ai-tutor-header{background:linear-gradient(135deg,#e0e0e0,#f0f0f0);box-shadow:0 2px 4px #0000001a;color:#333}.light-theme .ai-tutor-header .header-button{border:1px solid #2a91ff;color:#2a91ff}.light-theme .ai-tutor-header .header-button:hover{background:#2a91ff;color:#fff}.light-theme .hamburger{color:#2a91ff}.light-theme .mobile-dropdown{background:#f0f0f0}.light-theme .mobile-dropdown .header-button{border-bottom:1px solid #4557f31a}.ai-tutor-page{box-sizing:border-box;flex-direction:column;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;height:100vh;margin:0;padding:0;width:100%}.ai-tutor-page,.layout-body{display:flex;overflow:hidden}.layout-body{flex:1 1;min-height:0}.light-theme{background-color:#f7f7f7;color:#333}.light-theme .left-panel{background:radial-gradient(circle at 50% 22%,#2196f317,#0000 30%),linear-gradient(180deg,#fff,#f8fbff 52%,#f4f8fd);border-right:1px solid #2150821f;box-shadow:inset -1px 0 0 #ffffffb3;box-sizing:border-box;display:flex;flex-direction:column;min-height:0;min-width:340px;overflow:hidden;padding:1rem 1.35rem;width:clamp(360px,38vw,520px)}.light-theme .right-panel{align-items:center;background-color:#fafafa;display:flex;flex:1 1;justify-content:center;min-width:0;overflow:hidden;position:relative}.dark-theme{background:linear-gradient(120deg,#0c0f12,#1b1f24);color:#e2e8f0}.dark-theme .left-panel{background:radial-gradient(circle at 50% 22%,#38bdf824,#0000 30%),linear-gradient(180deg,#151b25,#101721 52%,#0b1119);border-right:1px solid #94a3b824;box-shadow:inset -1px 0 0 #ffffff08;box-sizing:border-box;display:flex;flex-direction:column;min-height:0;min-width:340px;overflow:hidden;padding:1rem 1.35rem;width:clamp(360px,38vw,520px)}.dark-theme .right-panel{align-items:center;background-color:#101215;flex:1 1;justify-content:center;min-width:0}.dark-theme .right-panel,.mobile-container{display:flex;overflow:hidden;position:relative}.mobile-container{flex:1 1;flex-direction:column;height:100vh;padding:0}.mobile-container,.mobile-header{box-sizing:border-box;margin:0;width:100vw}.mobile-header{flex-shrink:0;padding:10px 15px;position:relative;z-index:100}.mobile-floating-chat{background-color:initial;bottom:0;left:0;position:absolute;right:0;z-index:10}.mobile-chalkboard{box-sizing:border-box;flex:1 1;margin:0;max-width:100vw;overflow:auto;padding:4px;position:relative;width:100%;z-index:5}.mobile-content-shell{display:flex;flex:1 1;flex-direction:column;min-height:0;overflow:hidden}.mobile-top-panel{background:inherit;flex:0 0 auto;padding:2px 4px 0;pointer-events:auto;position:relative;z-index:20}.mobile-view-toggle{display:flex;gap:8px;margin-bottom:4px;pointer-events:auto}.mobile-view-toggle button{cursor:pointer;pointer-events:auto}.mobile-avatar-panel{align-items:center;display:flex;justify-content:center;min-height:75px;padding:2px 0 4px}.mobile-chat-panel{padding:2px 0;width:100%}.avatar-container{align-items:center;display:flex;flex-shrink:0;justify-content:center;margin:.2rem 0 .85rem;position:relative}.avatar-container:before{animation:tutorHaloSpin 14s linear infinite;background:conic-gradient(from 220deg,#2a91ff2e,#49e8ff7a,#6f50ff57,#2a91ff2e);border-radius:50%;content:"";filter:blur(.2px);height:clamp(258px,24vw,306px);opacity:.9;position:absolute;width:clamp(258px,24vw,306px)}.avatar-container:after{background:radial-gradient(circle,#24c1ff33,#0000 68%);border-radius:50%;content:"";height:clamp(292px,27vw,342px);pointer-events:none;position:absolute;width:clamp(292px,27vw,342px)}.avatar-loading{animation:spin 1s linear infinite;border:3px solid #1976d2;border-radius:50%;border-top-color:#0000;height:50px;left:50%;position:absolute;top:50%;transform:translate(-50%,-50%);width:50px}.loading-content{color:#1976d2;font-family:Orbitron,sans-serif;left:50%;position:absolute;text-align:center;top:calc(50% + 40px);transform:translateX(-50%);width:100%}.loading-text{font-size:14px;letter-spacing:1px;margin-bottom:5px;text-transform:uppercase}.loading-percentage{font-size:16px;font-weight:700}@keyframes spin{to{transform:translate(-50%,-50%) rotate(1turn)}}@keyframes tutorHaloSpin{to{transform:rotate(1turn)}}.avatar-container img{border:4px solid #168de8;border-radius:50%;box-shadow:0 0 0 9px #2196f314,0 18px 42px #0b6edc38,0 0 34px #49e8ff57;height:clamp(238px,22vw,282px);object-fit:cover;position:relative;transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;width:clamp(238px,22vw,282px);z-index:1}.avatar-container:hover img{border-color:#35c7ff;box-shadow:0 0 0 10px #35c7ff1a,0 22px 48px #0b6edc47,0 0 42px #49e8ff75;transform:translateY(-3px) scale(1.01)}.chat-box{background-color:initial;border-radius:0;box-shadow:none;display:flex;flex:1 1;flex-direction:column;margin:0;min-height:0;overflow:visible;width:100%}.chat-box .mic-button-active{animation:chatMicPulse 1.5s infinite;background-color:#4caf5033!important;border:1px solid #4caf5080!important;color:#4caf50!important}@keyframes chatMicPulse{0%{box-shadow:0 0 0 0 #4caf5066;transform:scale(1)}70%{box-shadow:0 0 0 5px #4caf5000;transform:scale(1.05)}to{box-shadow:0 0 0 0 #4caf5000;transform:scale(1)}}.chat-box .messages{flex:1 1;overflow-y:auto;padding:1.5rem;width:100%}.file-preview{align-items:center;background-color:#00ffff1a;border-radius:8px;display:flex;flex-direction:column;margin:10px 0;padding:10px}.file-preview img{border-radius:4px;margin-bottom:8px;max-height:200px;max-width:100%}.pdf-preview{align-items:center;display:flex;flex-direction:column;gap:8px;padding:16px}.pdf-preview span{color:#1976d2;font-size:14px;text-align:center;word-break:break-all}.input-container{background-color:initial;box-sizing:border-box;flex-shrink:0;margin:0 auto;max-width:1000px;padding:0;width:100%}.input-row{align-items:center;background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid #1e88e547;border-radius:999px;box-shadow:0 16px 34px #0f172a1f,inset 0 1px 0 #ffffffeb;display:flex;gap:10px;min-height:66px;padding:8px 10px 8px 16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.input-row:focus-within{border-color:#2196f3;box-shadow:0 18px 40px #1976d22e,0 0 0 4px #2196f314;transform:translateY(-1px)}.upload-button{align-items:center;background:#2196f317;border:none;border-radius:50%;color:#1976d2;cursor:pointer;display:flex;height:44px;justify-content:center;padding:0;transition:transform .2s ease,background-color .2s ease,color .2s ease;width:44px}.upload-button:hover{background-color:#1976d229;color:#0f6eca;transform:translateY(-1px)}.dark-theme .input-container{background-color:initial}.dark-theme .input-row{background:linear-gradient(180deg,#1b2430,#101824);border-color:#4a90e247;box-shadow:0 16px 34px #00000057,inset 0 1px 0 #ffffff14}.dark-theme .input-row:focus-within{border-color:#4a90e2;box-shadow:0 18px 40px #4a90e229,0 0 0 4px #4a90e214}.dark-theme .chat-box{background-color:initial}.dark-theme .chat-box .messages::-webkit-scrollbar{width:6px}.dark-theme .chat-box .messages::-webkit-scrollbar-track{background:#2a2d34}.dark-theme .chat-box .messages::-webkit-scrollbar-thumb{background:#3a3d44;border-radius:3px}.chat-box .messages .user{align-self:flex-start;background-color:#e3f2fd;border-radius:18px 18px 18px 0;margin-bottom:.5rem;max-width:80%;padding:.75rem}.chat-box .messages .ai{align-self:flex-end;background-color:#f5f5f5;border-radius:18px 18px 0 18px;margin-bottom:.5rem;max-width:80%;padding:.75rem}@media (max-width:768px){.input-container{border-radius:0;margin:0;padding:8px}.input-row{gap:4px}}.input-container input{border:1px solid #ddd;border-radius:4px;font-size:1rem;outline:none;padding:.75rem;transition:border-color .2s ease;width:100%}.button-row{display:flex;justify-content:space-between;margin-top:.5rem}.button-row button{background-color:#1976d2;border:none;border-radius:4px;color:#000;cursor:pointer;font-size:1rem;padding:.5rem 1rem;transition:all .2s ease}.button-row button:hover{background-color:#0cc;transform:scale(1.05)}.button-row button:active{transform:scale(.95)}.button-row button:disabled{background-color:#ccc;cursor:not-allowed;transform:none}.ai-thinking{align-items:center;background-color:#00ffff1a;border-radius:8px;color:#1976d2;display:flex;font-family:Orbitron,sans-serif;font-size:14px;gap:8px;margin:8px 0;padding:8px 16px}.ai-thinking-dots{display:flex;gap:4px}.ai-thinking-dot{animation:thinking 1.4s infinite;background-color:#1976d2;border-radius:50%;height:8px;width:8px}.ai-thinking-dot:nth-child(2){animation-delay:.2s}.ai-thinking-dot:nth-child(3){animation-delay:.4s}@keyframes thinking{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@media (max-width:768px){.mobile-container{height:100vh;padding-top:0}.mobile-floating-chat{max-height:150px;padding:10px}.mobile-chalkboard{flex:1 1;margin-top:0;min-height:0;padding:4px 6px 6px}.chat-box .messages .user{display:none}.avatar-container{margin-bottom:0;position:relative;right:auto;top:auto;transform:none;transform-origin:center;z-index:8}.avatar-container img{height:min(30vw,80px);opacity:.95;width:min(30vw,80px)}.mobile-top-panel .chat-box{background:#0000;border-radius:20px;box-shadow:none;margin:0;overflow:visible}.mobile-top-panel .history-toggle-mobile{margin-bottom:12px!important}.mobile-top-panel .input-container{display:flex;justify-content:center;margin:0 auto;max-width:calc(100% - 8px);padding:2px 4px 0}.mobile-top-panel .input-row{border-radius:999px;gap:6px;max-width:340px;min-height:32px;padding:2px 10px;width:100%}}@media (min-width:769px) and (max-width:1280px){.dark-theme .left-panel,.light-theme .left-panel{min-width:320px;padding:1.1rem;width:clamp(340px,34vw,460px)}}.ai-tutor-header{align-items:center;background:linear-gradient(135deg,#0d0f14,#21242a);box-shadow:0 2px 8px #0ff3;color:#1976d2;display:flex;font-family:Orbitron,sans-serif;justify-content:space-between;padding:.1rem 1rem;z-index:100}.ai-tutor-header .header-left .logo{font-size:1.5rem;font-weight:700;letter-spacing:2px}.ai-tutor-header .header-right{align-items:center;display:flex;gap:1rem}.ai-tutor-header .header-button{background:#0000;border:1px solid #1976d2;border-radius:4px;color:#1976d2;font-size:.7rem;font-weight:600;padding:.5rem 1rem;text-decoration:none;transition:background .2s ease,color .2s ease}.ai-tutor-header .header-button:hover{background:#1976d2;color:#000}.chalkboard-container{-webkit-overflow-scrolling:touch;box-sizing:border-box;height:100%;overflow-x:hidden;overflow-y:auto!important;padding:16px;position:relative;scrollbar-width:thin;width:100%}.chalkboard-container.dark-theme{background-color:#1a1a1a}.chalkboard-content{height:100%;position:relative;user-select:text;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;width:100%}.response-block{word-wrap:break-word;line-height:1.5;margin-bottom:20px}.response-divider{background:linear-gradient(90deg,#0000 0,currentColor 20%,currentColor 80%,#0000);height:1px;margin:20px 0;opacity:.1;position:relative;width:100%}.dark-theme .response-divider{background:linear-gradient(90deg,#0000 0,#ffffff1a 20%,#ffffff1a 80%,#0000)}.chalkboard-container::-webkit-scrollbar{height:8px;width:8px}.chalkboard-container::-webkit-scrollbar-track{background:#0000;margin:3px}.chalkboard-container::-webkit-scrollbar-thumb{background:#888;border-radius:4px;-webkit-transition:background .2s ease;transition:background .2s ease}.chalkboard-container.dark-theme::-webkit-scrollbar-thumb{background:#555}.chalkboard-container::-webkit-scrollbar-thumb:hover{background:#666}.chalkboard-container.dark-theme::-webkit-scrollbar-thumb:hover{background:#777}.file-display{border-radius:8px;margin-bottom:20px;overflow:hidden}.file-display img{border-radius:4px;height:auto;max-width:100%}.scroll-to-bottom-button{opacity:.8;transition:all .3s ease}.scroll-to-bottom-button:hover{opacity:1;transform:scale(1.1)}@media (pointer:fine){.chalkboard-container{transform:translateZ(0);will-change:transform}}@media (max-width:768px){.chalkboard-container{padding:12px}.scroll-to-bottom-button{bottom:70px!important;height:36px!important;right:15px!important;width:36px!important}}.chalkboard-canvas{display:block;image-rendering:crisp-edges;min-width:100%}.dark-theme .chalkboard-canvas{box-shadow:none}.typing-indicator{align-items:center;animation:fadeIn .3s ease;background:#ffffffe6;border-radius:20px;box-shadow:0 2px 10px #0000001a;display:flex;gap:8px;padding:8px 16px;position:absolute;right:20px;top:20px}.dark-theme .typing-indicator{background:#000c}.scroll-indicator{bottom:20px;left:50%;opacity:0;pointer-events:none;position:absolute;transform:translateX(-50%);transition:opacity .2s ease;will-change:transform,opacity}.scroll-indicator.visible{opacity:1}.scroll-arrow{animation:bounce 2s infinite;border-bottom:2px solid #888;border-right:2px solid #888;height:30px;transform:rotate(45deg);width:30px;will-change:transform}@media (max-width:768px){.scroll-indicator.horizontal{bottom:auto;left:auto;right:10px;top:50%;transform:translateY(-50%)}.scroll-indicator.horizontal .scroll-arrow{animation:bounceHorizontal 2s infinite;transform:rotate(-45deg)}}.dark-theme .scroll-arrow{border-color:#555}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0) rotate(45deg)}40%{transform:translateY(-10px) rotate(45deg)}60%{transform:translateY(-5px) rotate(45deg)}}@keyframes bounceHorizontal{0%,20%,50%,80%,to{transform:translateX(0) rotate(-45deg)}40%{transform:translateX(-10px) rotate(-45deg)}60%{transform:translateX(-5px) rotate(-45deg)}}@media (max-width:768px){.chalkboard-container{-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain;padding:8px}.chalkboard-canvas{min-width:calc(100% - 20px)}}