:root{--accent: #0074d9;--background: #fffffe;--color: rgb(41, 41, 41);--text-xs: 0.75rem;--text-sm: 0.875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--text-5xl: 3rem;--text-6xl: 5rem}html{box-sizing:border-box;scroll-behavior:smooth;height:100%}body{background-color:var(--background);font-size:var(--text-lg);line-height:1.54;color:var(--color);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;font-feature-settings:'liga','tnum','case','calt','zero','ss01','locl';font-variant-ligatures:contextual;-webkit-overflow-scrolling:touch;-webkit-text-size-adjust:100%;font-family:ibm plex sans,sans-serif;height:100%}body::-webkit-scrollbar{width:6px}body{scrollbar-width:thin;scrollbar-color:rgba(41,41,41,.9) 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1rem;text-align:center}.footer__attribution{margin-top:1rem;font-size:var(--text-sm);color:rgba(41,41,41,.7)}.intro{max-width:800px;margin:0 auto;padding:2rem 0}.intro h1{font-size:var(--text-5xl);font-weight:600;color:var(--color);margin-bottom:1rem;text-align:center;letter-spacing:-.02em}.intro h2{font-size:var(--text-2xl);font-weight:500;color:var(--color);margin-top:3rem;margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:2px solid rgba(0,116,217,.2);position:relative}.intro h2::after{content:'';position:absolute;bottom:-2px;left:0;width:60px;height:2px;background-color:var(--accent)}.intro hr{margin:3rem 0;height:2px;background:linear-gradient(90deg,transparent,rgba(0,116,217,0.3),transparent);border:none}.intro p{font-size:var(--text-lg);line-height:1.7;margin-bottom:1.5rem;color:var(--color)}.intro blockquote{margin:2rem 0;padding:1.5rem 2rem;background:linear-gradient(135deg,rgba(0,116,217,0.05),rgba(0,116,217,0.1));border-left:4px solid var(--accent);border-radius:0 8px 8px 0;font-style:normal;position:relative}.intro blockquote::before{content:'"';position:absolute;top:-10px;left:10px;font-size:3rem;color:var(--accent);font-family:serif;line-height:1}.intro ul,.intro ol{margin:1.5rem 0;padding-left:2rem}.intro li{margin-bottom:.75rem;line-height:1.6}.intro ul li{list-style-type:none;position:relative}.intro ul li::before{content:'•';color:var(--accent);font-weight:700;position:absolute;left:-1.5rem}.intro .example{background:rgba(41,41,41,.03);border:1px solid rgba(41,41,41,.1);border-radius:8px;padding:1.5rem;margin:1.5rem 0}.intro .example-header{font-weight:600;color:var(--accent);margin-bottom:1rem;font-size:var(--text-lg)}.intro .translation{font-style:italic;color:rgba(41,41,41,.7);margin-top:.5rem;padding-left:1rem;border-left:2px solid rgba(41,41,41,.2)}.intro .warning{background:linear-gradient(135deg,rgba(255,107,107,0.1),rgba(255,107,107,0.05));border:1px solid rgba(255,107,107,.3);border-radius:8px;padding:1.5rem;margin:2rem 0;position:relative}.intro .warning::before{content:'⚠️';position:absolute;top:-10px;left:20px;background:var(--background);padding:0 10px;font-size:1.2rem}.intro .scenario{background:rgba(0,116,217,.05);border:1px solid rgba(0,116,217,.2);border-radius:8px;padding:1.5rem;margin:2rem 0}.intro .scenario-header{font-weight:600;color:var(--accent);margin-bottom:1rem;font-size:var(--text-lg)}.intro .scenario-dialogue{background:var(--background);border:1px solid rgba(41,41,41,.1);border-radius:6px;padding:1rem;margin:.5rem 0;font-family:ibm plex mono,monospace;font-size:var(--text-sm)}.intro .scenario-dialogue .speaker{font-weight:600;color:var(--accent)}.intro .scenario-dialogue .thought{font-style:italic;color:rgba(41,41,41,.7)}.intro .scenario-dialogue .reality{color:#ff6b6b;font-weight:500}.intro .footer{margin-top:4rem;padding-top:2rem;border-top:2px solid rgba(0,116,217,.2);text-align:center;font-style:italic;color:rgba(41,41,41,.7)}@media(max-width:768px){.intro{padding:1rem}.intro h1{font-size:var(--text-4xl)}.intro h2{font-size:var(--text-xl)}.intro blockquote{padding:1rem 1.5rem}.intro .scenario,.intro .warning{padding:1rem}.header__content{flex-direction:column;gap:1rem}.nav__list{gap:1rem}}@media print{.intro{max-width:none}.intro h1,.intro h2{page-break-after:avoid}.intro blockquote,.intro .scenario,.intro .warning{page-break-inside:avoid}}