@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap");:root{--brand-primary:#6366f1;--brand-secondary:#a855f7;--brand-accent:#38bdf8;--bg-main:#0a0e1a;--bg-sidebar:#0a0e1a;--bg-header:#0a0e1a;--bg-card:rgba(13,18,33,.6);--border-glass:hsla(0,0%,100%,.08);--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--bg-input:hsla(0,0%,100%,.03);--bg-surface:hsla(0,0%,100%,.02);--bg-gradient:radial-gradient(circle at 50% 0%,rgba(99,102,241,.15) 0%,rgba(10,14,26,.5) 50%,#0a0e1a 100%);--font-sans:"Inter",system-ui,sans-serif;--grad-premium:linear-gradient(135deg,var(--accent-current,#6366f1) 0%,#a855f7 100%);--grad-premium-glow:0 0 25px rgba(99,102,241,.3);--glass-glow:0 0 15px 0 rgba(99,102,241,.1);--border-premium:linear-gradient(135deg,hsla(0,0%,100%,.15),hsla(0,0%,100%,.05) 50%,rgba(99,102,241,.15));--accent-current:#6366f1}@keyframes border-glow-rotate{0%{border-color:rgba(99,102,241,.2);box-shadow:0 0 10px rgba(99,102,241,.1)}50%{border-color:rgba(168,85,247,.4);box-shadow:0 0 20px rgba(168,85,247,.2)}to{border-color:rgba(99,102,241,.2);box-shadow:0 0 10px rgba(99,102,241,.1)}}[data-theme=light]{--bg-main:#f8fafc;--bg-sidebar:#fff;--bg-header:#fff;--bg-card:#fff;--border-glass:rgba(0,0,0,.1);--bg-gradient:radial-gradient(ellipse at top,#f1f5f9 0%,#f8fafc 100%);--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--bg-input:#fff;--bg-surface:#f1f5f9}body{background-color:var(--bg-main);color:var(--text-primary);font-family:var(--font-sans);margin:0;-webkit-font-smoothing:antialiased}.logo-box{display:flex;height:2rem;width:2rem;align-items:center;justify-content:center;border-radius:var(--radius-lg);--tw-bg-opacity:1;background-color:rgb(79 70 229/var(--tw-bg-opacity,1));font-weight:700;--tw-shadow:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--tw-shadow-colored:0 10px 15px -3px var(--tw-shadow-color),0 4px 6px -4px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow);--tw-shadow-color:rgba(99,102,241,.2);--tw-shadow:var(--tw-shadow-colored);transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.logo-box:hover{--tw-bg-opacity:1;background-color:rgb(99 102 241/var(--tw-bg-opacity,1))}.logo-text{font-size:1.25rem;line-height:1.75rem;font-weight:900;text-transform:uppercase;letter-spacing:-.05em;color:var(--text-primary);font-family:var(--font-sans)}.premium-gradient{background:var(--grad-premium);box-shadow:var(--grad-premium-glow)}.hover-glow{transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.3s}.hover-glow:hover{box-shadow:var(--grad-premium-glow);--tw-scale-x:1.02;--tw-scale-y:1.02;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y));border-color:rgba(99,102,241,.5)}@keyframes reveal{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.mastery-reveal{animation:reveal .7s ease-out forwards}.btn-primary{border-radius:var(--radius-lg);--tw-bg-opacity:1;background-color:rgb(79 70 229/var(--tw-bg-opacity,1));padding:.5rem 1rem;font-weight:500;--tw-text-opacity:1;color:rgb(255 255 255/var(--tw-text-opacity,1));--tw-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--tw-shadow-colored:0 4px 6px -1px var(--tw-shadow-color),0 2px 4px -2px var(--tw-shadow-color);box-shadow:var(--tw-ring-offset-shadow,0 0 #0000),var(--tw-ring-shadow,0 0 #0000),var(--tw-shadow);--tw-shadow-color:rgba(99,102,241,.1);--tw-shadow:var(--tw-shadow-colored);transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.btn-primary:hover{--tw-bg-opacity:1;background-color:rgb(99 102 241/var(--tw-bg-opacity,1))}.btn-primary:active{--tw-scale-x:.95;--tw-scale-y:.95;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.btn-secondary{border-radius:var(--radius-lg);border-width:1px;border-color:var(--border-glass);background-color:var(--bg-item-hover);padding:.5rem 1rem;font-weight:500;color:var(--text-secondary);transition-property:all;transition-timing-function:cubic-bezier(.4,0,.2,1);transition-duration:.15s}.btn-secondary:hover{background-color:rgba(0,0,0,.05);color:var(--text-primary)}.btn-secondary:active{--tw-scale-x:.95;--tw-scale-y:.95;transform:translate(var(--tw-translate-x),var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}@media (prefers-color-scheme:dark){.btn-secondary:hover{background-color:hsla(0,0%,100%,.1)}}.glass-card{border:1px solid var(--border-glass);border-radius:16px}.glass-card,.glass-card-premium{background:var(--bg-card);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));box-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06),var(--glass-shadow);position:relative;transition:all .3s ease}.glass-card-premium{border:1px solid transparent;background-clip:padding-box;border-radius:16px;animation:border-glow-rotate 4s linear infinite}.glass-card-premium:before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:var(--border-premium);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.modal-overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100vw!important;height:100vh!important;z-index:9999!important;overflow-y:auto!important;overflow-x:hidden!important;display:flex!important;flex-direction:column!important;background:transparent!important;pointer-events:none!important}.modal-backdrop{position:fixed!important;inset:0!important;background-color:rgba(0,0,0,.92)!important;backdrop-filter:blur(12px)!important;-webkit-backdrop-filter:blur(12px)!important;z-index:-1!important;pointer-events:auto!important}.modal-container{min-height:100vh!important;min-height:100dvh!important;display:flex!important;align-items:center;justify-content:center;padding:1.5rem!important;pointer-events:none!important}.modal-container,.modal-content{position:relative!important;width:100%!important}.modal-content{max-width:32rem;background-color:#0f172a!important;background-image:none!important;border:1px solid hsla(0,0%,100%,.1)!important;border-radius:1.25rem!important;box-shadow:0 25px 50px -12px rgba(0,0,0,.5)!important;overflow:hidden!important}.modal-content,.modal-content>*{pointer-events:auto!important}.katex,.katex .katex-html{white-space:normal!important}.katex .denom,.katex .matrix,.katex .mtable,.katex .numer,.katex .substack,.katex .vlist{white-space:nowrap!important}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/ba9851c3c22cd980-s.woff2) format("woff2");unicode-range:u+0460-052f,u+1c80-1c8a,u+20b4,u+2de0-2dff,u+a640-a69f,u+fe2e-fe2f}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/21350d82a1f187e9-s.woff2) format("woff2");unicode-range:u+0301,u+0400-045f,u+0490-0491,u+04b0-04b1,u+2116}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 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format("woff2");unicode-range:u+0100-02ba,u+02bd-02c5,u+02c7-02cc,u+02ce-02d7,u+02dd-02ff,u+0304,u+0308,u+0329,u+1d00-1dbf,u+1e00-1e9f,u+1ef2-1eff,u+2020,u+20a0-20ab,u+20ad-20c0,u+2113,u+2c60-2c7f,u+a720-a7ff}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/e4af272ccee01ff0-s.p.woff2) format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:__Inter_Fallback_f367f3;src:local("Arial");ascent-override:90.49%;descent-override:22.56%;line-gap-override:0.00%;size-adjust:107.06%}.__className_f367f3{font-family:__Inter_f367f3,__Inter_Fallback_f367f3;font-style:normal}.__variable_f367f3{--font-sans:"__Inter_f367f3","__Inter_Fallback_f367f3"}@font-face{font-family:__Outfit_ed3508;font-style:normal;font-weight:100 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format("woff2");unicode-range:u+00??,u+0131,u+0152-0153,u+02bb-02bc,u+02c6,u+02da,u+02dc,u+0304,u+0308,u+0329,u+2000-206f,u+20ac,u+2122,u+2191,u+2193,u+2212,u+2215,u+feff,u+fffd}@font-face{font-family:__Outfit_Fallback_ed3508;src:local("Arial");ascent-override:100.18%;descent-override:26.05%;line-gap-override:0.00%;size-adjust:99.82%}.__className_ed3508{font-family:__Outfit_ed3508,__Outfit_Fallback_ed3508;font-style:normal}.__variable_ed3508{--font-heading:"__Outfit_ed3508","__Outfit_Fallback_ed3508"}:root{--color-primary-50:#eef2ff;--color-primary-100:#e0e7ff;--color-primary-200:#c7d2fe;--color-primary-300:#a5b4fc;--color-primary-400:#818cf8;--color-primary-500:#6366f1;--color-primary-600:#4f46e5;--color-primary-700:#4338ca;--color-primary-800:#3730a3;--color-primary-900:#312e81;--color-precision-blue-deep:#0f1729;--color-precision-blue:#2463eb;--color-precision-blue-light:rgba(36,99,235,.15);--color-growth-green:#16a249;--color-growth-green-light:rgba(22,162,73,.15);--color-bg-dark:#0a0e1a;--color-bg-darker:#020617;--color-bg-surface:#0d1221;--color-bg-surface-light:rgba(13,18,33,.5);--color-text-primary:#f8fafc;--color-text-secondary:#cbd5e1;--color-text-muted:#a1a1aa;--color-text-inverse:#0f172a;--glass-bg:hsla(0,0%,100%,.03);--glass-bg-strong:hsla(0,0%,100%,.06);--glass-border:hsla(0,0%,100%,.08);--glass-border-strong:hsla(0,0%,100%,.12);--glass-highlight:hsla(0,0%,100%,.01);--color-success:#10b981;--color-success-light:rgba(16,185,129,.1);--color-warning:#f59e0b;--color-warning-light:rgba(245,158,11,.1);--color-error:#ef4444;--color-error-light:rgba(239,68,68,.1);--color-info:#3b82f6;--color-info-light:rgba(59,130,246,.1);--bg-main:var(--color-bg-dark);--bg-card:var(--color-bg-surface);--border-glass:var(--glass-border);--text-primary:var(--color-text-primary);--text-secondary:var(--color-text-secondary);--text-muted:var(--color-text-muted);--glass-blur:20px;--glass-blur-lab:24px;--glass-blur-sidecar:32px;--glass-blur-deep:48px;--glass-shadow:0 8px 32px 0 rgba(0,0,0,.5);--color-deuteranopia-indigo:#4a6fa5;--color-protanopia-indigo:#3b5998;--color-tritanopia-indigo:#0077b6;--glass-opacity-fallback:0.95;--glass-blur-fallback:0px;--font-heading:"Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-serif:"Playfair Display",Georgia,serif;--font-mono:"JetBrains Mono","Fira Code","Consolas",monospace;--type-scale-ratio:1.25;--text-xs:0.64rem;--text-sm:0.8rem;--text-base:1rem;--text-lg:1.25rem;--text-xl:1.563rem;--text-2xl:1.953rem;--text-3xl:2.441rem;--text-4xl:3.052rem;--text-5xl:3.815rem;--text-6xl:4.768rem;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--font-weight-extrabold:800;--line-height-tight:1.25;--line-height-snug:1.375;--line-height-normal:1.5;--line-height-relaxed:1.625;--tracking-tight:-0.025em;--tracking-normal:0;--tracking-wide:0.025em;--tracking-wider:0.05em;--tracking-widest:0.1em;--space-0:0;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--space-32:8rem;--radius-none:0;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-3xl:2rem;--radius-full:9999px;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -2px rgba(0,0,0,.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 10px 10px -5px rgba(0,0,0,.04);--shadow-2xl:0 25px 50px -12px rgba(0,0,0,.25);--shadow-inner:inset 0 2px 4px 0 rgba(0,0,0,.05);--shadow-glow-sm:0 0 10px rgba(99,102,241,.3);--shadow-glow-md:0 0 20px rgba(99,102,241,.4);--shadow-glow-lg:0 0 30px rgba(99,102,241,.5);--shadow-glow-xl:0 0 40px rgba(99,102,241,.6);--sidebar-width-expanded:240px;--sidebar-width-collapsed:72px;--header-height:60px;--mobile-nav-height:60px;--container-max-width:72rem;--container-padding:1rem;--z-dropdown:1000;--z-sticky:1020;--z-fixed:1030;--z-modal-backdrop:1040;--z-modal:1050;--z-popover:1060;--z-tooltip:1070;--z-toast:1080;--duration-fast:150ms;--duration-normal:250ms;--duration-slow:350ms;--duration-slower:500ms;--ease-out:cubic-bezier(0.215,0.61,0.355,1);--ease-in-out:cubic-bezier(0.645,0.045,0.355,1);--ease-bounce:cubic-bezier(0.68,-0.55,0.265,1.55)}[data-theme=light]{--color-bg-dark:#f8fafc;--color-bg-darker:#f1f5f9;--color-bg-surface:#fff;--color-bg-surface-light:hsla(0,0%,100%,.8);--color-text-primary:#0f172a;--color-text-secondary:#475569;--color-text-muted:#64748b;--color-text-inverse:#f8fafc;--glass-bg:hsla(0,0%,100%,.7);--glass-bg-strong:hsla(0,0%,100%,.9);--glass-border:rgba(0,0,0,.08);--glass-border-strong:rgba(0,0,0,.12);--glass-highlight:hsla(0,0%,100%,.5);--bg-main:var(--color-bg-dark);--border-glass:var(--glass-border);--glass-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}@media (min-width:768px){:root{--text-base:1.0625rem;--text-xl:1.375rem;--text-2xl:1.625rem}}@media (min-width:1024px){:root{--text-base:1.125rem;--text-xl:1.5rem;--text-2xl:1.875rem;--text-3xl:2.25rem}}