:root{--color-bg: #071426;--color-paper: #0e2744;--color-ink: #eaf2ff;--color-ink-soft: rgba(234, 242, 255, .78);--color-accent: #3d9eff;--color-accent-deep: #7cc0ff;--color-note-sky: #bfe0ff;--color-note-blue: #8ec5ff;--color-note-ink: #071426;--color-nav: rgba(7, 20, 38, .72);--color-line: rgba(234, 242, 255, .16);--font-sans: "Inter", ui-sans-serif, system-ui, sans-serif;--font-display: "Fraunces", ui-serif, Georgia, serif;--font-mono: "JetBrains Mono", ui-monospace, monospace;--shadow-button: 3px 3px 0 var(--color-accent);--shadow-card: 4px 4px 0 var(--color-accent);--shadow-card-hover: 6px 6px 0 var(--color-accent);--shadow-frame: 10px 10px 0 var(--color-accent);--shadow-note: 0 10px 22px rgba(0, 0, 0, .35);--shadow-secondary: 0 2px 0 rgba(234, 242, 255, .14);--border-ink: 1.5px solid var(--color-ink);--border-frame: 3px solid var(--color-ink);--border-ghost: 1px solid var(--color-line);--radius-button: 8px;--radius-tile: 3px;--space-2: .5rem;--space-4: 1rem;--space-6: 1.5rem;--space-8: 2rem;--space-12: 3rem;--sidebar-width: 16rem;--content: 56rem}:root{color-scheme:dark}[data-theme=light]{color-scheme:light;--color-bg: #f4f8fc;--color-paper: #ffffff;--color-ink: #0b1f3a;--color-ink-soft: rgba(11, 31, 58, .72);--color-accent: #1b6fd4;--color-accent-deep: #0d4e9e;--color-note-sky: #d7ebff;--color-note-blue: #b9d9ff;--color-note-ink: #071426;--color-nav: rgba(244, 248, 252, .78);--color-line: rgba(11, 31, 58, .14);--shadow-note: 0 10px 22px rgba(11, 31, 58, .16);--shadow-secondary: 0 2px 0 rgba(11, 31, 58, .12)}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;overflow:hidden}body{margin:0;background:var(--color-bg);color:var(--color-ink);font-family:var(--font-sans);font-size:1rem;line-height:1.5rem}::selection{background:var(--color-accent);color:var(--color-note-ink)}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.skip{position:absolute;left:var(--space-4);top:-3rem;z-index:3;display:inline-flex;align-items:center;height:36px;padding:0 16px;border:var(--border-ink);border-radius:var(--radius-button);background:var(--color-ink);color:var(--color-bg);font-size:.875rem;font-weight:600}.skip:focus{top:var(--space-4)}.sidebar{position:fixed;inset:0 auto 0 0;z-index:2;width:var(--sidebar-width);display:flex;flex-direction:column;gap:var(--space-8);padding:var(--space-6);background:var(--color-nav);backdrop-filter:blur(24px) 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button{display:block;width:100%;height:32px;padding:0 12px;border:1.5px solid transparent;border-radius:6px;background:transparent;color:var(--color-ink);font-size:.8125rem;font-weight:600;text-align:left;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}.lang-menu button:hover{transform:scale(1.02)}.lang-menu button[aria-selected=true]{border-color:var(--color-ink);box-shadow:var(--shadow-button)}.toc-label{margin:0 0 var(--space-4);font-family:var(--font-mono);font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent)}.toc ol+.toc-label{margin-top:var(--space-6)}.toc ol{display:flex;flex-direction:column;gap:var(--space-2);margin:0;padding:0 6px 6px 0;list-style:none}.toc a{display:flex;align-items:center;gap:var(--space-2);height:36px;padding:0 12px;border:1.5px solid transparent;border-radius:var(--radius-button);color:var(--color-ink-soft);font-size:.875rem;transition:box-shadow .16s ease,border-color .16s ease,color .16s 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h3{margin:var(--space-2) 0 0;font-family:var(--font-display);font-size:1.5rem;font-weight:500;letter-spacing:-.02em;line-height:1.15}.card .example{margin-top:var(--space-4);padding-top:var(--space-4);border-top:var(--border-ghost);font-family:var(--font-display);font-style:italic;color:var(--color-accent-deep)}.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6);margin-top:var(--space-4)}.fact h3{margin:0;font-family:var(--font-display);font-size:1.25rem;font-style:italic;font-weight:500;letter-spacing:-.02em;color:var(--color-ink)}.fact p{font-family:var(--font-mono);font-size:.75rem;line-height:1.7}.list{display:flex;flex-direction:column;gap:var(--space-2);margin:var(--space-4) 0 0;padding-left:1.1rem;color:var(--color-ink-soft)}.list li::marker{color:var(--color-accent)}.list strong{color:var(--color-ink);font-weight:600}.code{margin-top:var(--space-6);padding:var(--space-4) var(--space-6);background:var(--color-bg);border:var(--border-ink);border-radius:var(--radius-tile);box-shadow:var(--shadow-card);overflow-x:auto}.card .code{margin-top:var(--space-4);padding:var(--space-4);box-shadow:none;border:var(--border-ghost)}.code-label{margin:0;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-accent)}pre{margin:var(--space-4) 0 0;overflow-x:auto}pre code{padding:0;border:0;background:none;font-family:var(--font-mono);font-size:.75rem;line-height:1.7;letter-spacing:.02em;color:var(--color-ink)}code{padding:.1em .35em;border:var(--border-ghost);border-radius:var(--radius-tile);background:var(--color-bg);font-family:var(--font-mono);font-size:.8em;color:var(--color-accent-deep)}.pipeline{display:flex;flex-wrap:wrap;gap:var(--space-2);margin:var(--space-4) 0 0;padding:0;list-style:none;counter-reset:step}.pipeline li{counter-increment:step;display:inline-flex;align-items:center;height:32px;padding:0 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a{color:var(--color-ink);font-weight:600;text-decoration:underline;text-underline-offset:3px}.site-footer a:hover{color:var(--color-accent)}.instead{margin:0;font-family:var(--font-display);font-size:1.75rem;font-style:italic;font-weight:500;letter-spacing:-.02em;color:var(--color-accent-deep)}.pair{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-6);margin-top:var(--space-8);padding-right:6px}.pair-bad{border-style:dashed;box-shadow:none}.pair-bad:hover{box-shadow:none}.pair-label{margin:0;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase}.pair-bad .pair-label{color:var(--color-ink-soft);text-decoration:line-through;text-decoration-color:var(--color-accent)}.pair-good .pair-label{color:var(--color-accent)}:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}@media(prefers-reduced-motion:reduce){.section{animation:none}.scroller{scroll-behavior:auto}.brand,.toc a,.note,.card,.btn-primary,.btn-secondary,.theme-toggle,.lang-trigger,.lang-menu button,.pipeline li{transition:none}}@media(max-width:960px){.hero-layout,.facts,.pair{grid-template-columns:1fr}.steps{grid-template-columns:repeat(3,1fr)}.note-sky,.note-blue,.note-sky:hover,.note-blue:hover{transform:none}}@media(max-width:860px){.sidebar{inset:0 0 auto;width:100%;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:var(--space-4);border-right:0;border-bottom:var(--border-ghost)}.controls{flex:1}.toc{display:flex;min-width:0;flex:1 1 100%;overflow-x:auto}.toc-label{display:none}.toc ol{flex:0 0 auto;flex-direction:row;padding:4px 6px 6px 0}.toc a{white-space:nowrap}.scroller{margin-left:0;margin-top:8rem;height:calc(100vh - 8rem);padding:var(--space-8) var(--space-4) var(--space-12)}.card-wide{grid-column:auto}.steps{grid-template-columns:repeat(2,1fr)}}