@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:100 900;font-display:swap;src:url(/_next/static/media/c5fe6dc8356a8c31-s.woff2) format("woff2");unicode-range:u+1f??}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/19cfc7226ec3afaa-s.woff2) format("woff2");unicode-range:u+0370-0377,u+037a-037f,u+0384-038a,u+038c,u+038e-03a1,u+03a3-03ff}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/df0a9ae256c0569c-s.woff2) format("woff2");unicode-range:u+0102-0103,u+0110-0111,u+0128-0129,u+0168-0169,u+01a0-01a1,u+01af-01b0,u+0300-0301,u+0303-0304,u+0308-0309,u+0323,u+0329,u+1ea0-1ef9,u+20ab}@font-face{font-family:__Inter_f367f3;font-style:normal;font-weight:100 900;font-display:swap;src:url(/_next/static/media/8e9860b6e62d6359-s.woff2) 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}:root,[data-theme=dark]{--bg-primary:#000;--bg-surface:#0a0a0a;--bg-elevated:#141414;--bg-hover:hsla(0,0%,100%,.05);--text-primary:#fff;--text-secondary:#999;--text-tertiary:#666;--accent:#615cbb;--accent-hover:#514da3;--accent-muted:rgba(97,92,187,.15);--on-accent:#000;--link:#615cbb;--link-hover:#7b76d6;--border-color:hsla(0,0%,100%,.08);--border-hover:hsla(0,0%,100%,.15);--border-subtle:hsla(0,0%,100%,.06);--navbar-bg:rgba(0,0,0,.8);--navbar-blur:blur(12px);--card-bg:#0a0a0a;--card-border:hsla(0,0%,100%,.08);--card-shadow:none;--code-bg:#0a0a0a;--code-text:#e0e0e0;--code-linenum:#444;--code-keyword:#c586c0;--code-function:#dcdcaa;--easy-bg:rgba(74,222,128,.15);--easy-text:#4ade80;--medium-bg:rgba(251,191,36,.15);--medium-text:#fbbf24;--hard-bg:rgba(239,68,68,.15);--hard-text:#ef4444;--gradient-cta:linear-gradient(135deg,rgba(74,222,128,.08),rgba(74,222,128,.02));--gradient-video:linear-gradient(135deg,#1a1a2e,#16213e);--overlay-scrim:rgba(0,0,0,.3);--control-bg:hsla(0,0%,100%,.9);--control-fg:#000;--track-bg:#1a1a1a;--ring-track:#1a1a1a;--accent-alpha-25:rgba(97,92,187,.25);--accent-alpha-50:rgba(97,92,187,.5);--diagram-node-bg:#1a1a2e}[data-theme=light]{--bg-primary:#fff;--bg-surface:#f9fafb;--bg-elevated:#fff;--bg-hover:rgba(0,0,0,.03);--text-primary:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--accent:#615cbb;--accent-hover:#514da3;--accent-muted:rgba(97,92,187,.12);--on-accent:#000;--link:#615cbb;--link-hover:#514da3;--border-color:rgba(0,0,0,.08);--border-hover:rgba(0,0,0,.15);--border-subtle:rgba(0,0,0,.05);--navbar-bg:hsla(0,0%,100%,.9);--navbar-blur:blur(12px);--card-bg:#fff;--card-border:rgba(0,0,0,.08);--card-shadow:0 1px 2px rgba(0,0,0,.06);--code-bg:#f3f4f6;--code-text:#1f2937;--code-linenum:#9ca3af;--code-keyword:#7c3aed;--code-function:#b45309;--easy-bg:rgba(22,163,74,.1);--easy-text:#16a34a;--medium-bg:rgba(217,119,6,.1);--medium-text:#d97706;--hard-bg:rgba(220,38,38,.1);--hard-text:#dc2626;--gradient-cta:linear-gradient(135deg,rgba(22,163,74,.08),rgba(22,163,74,.02));--gradient-video:linear-gradient(135deg,#e0e7ff,#dbeafe);--overlay-scrim:rgba(17,24,39,.12);--control-bg:hsla(0,0%,100%,.95);--control-fg:#111827;--track-bg:#e5e7eb;--ring-track:#e5e7eb;--accent-alpha-25:rgba(97,92,187,.18);--accent-alpha-50:rgba(97,92,187,.34);--diagram-node-bg:#eef2ff}:root{--font-display:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-heading-weight:600;--font-body-weight:400;--section-padding:100px 0;--container-max-width:1200px;--border-radius-card:16px;--border-radius-button:8px}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:var(--font-display);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease,color .3s ease}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}.container{max-width:var(--container-max-width);margin:0 auto;padding:0 24px}.btn-primary{background-color:var(--text-primary);color:var(--bg-primary);padding:10px 20px;border-radius:var(--border-radius-button);font-size:14px;font-weight:500;transition:opacity .2s ease}.btn-primary:hover{opacity:.9}.btn-secondary{background-color:transparent;color:var(--text-primary);border:1px solid var(--border-color);padding:10px 20px;border-radius:var(--border-radius-button);font-size:14px;font-weight:500;transition:border-color .2s ease,background-color .2s ease}.btn-secondary:hover{border-color:var(--border-hover);background-color:var(--bg-hover)}