:root{--bg: #e7ebef;--text: #14181f;--muted: rgba(20, 24, 31, .72);--accent: #3d4a5a;--accent-hover: #2a313b;--accent-light: #bcc4cd;--accent-bg: #d6dce3;--card-bg: rgba(255, 255, 255, .45);--border: rgba(20, 24, 31, .14);--nav-height: 3.5rem;--ff-heading: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;--ff-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;--ff-mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;--gut: clamp(1.25rem, 4vw, 3.5rem)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--ff-body);background:var(--bg);color:var(--text);line-height:1.65;font-size:.95rem}.container{max-width:1100px;margin:0 auto;padding:0 2rem}.ns-header{padding-top:calc(var(--nav-height) + 3rem);padding-bottom:2rem;border-bottom:1px solid var(--border);margin-bottom:0;background:var(--bg)}.ns-title{font-size:2rem;font-weight:700;color:var(--text);letter-spacing:-.02em}.ns-subtitle{font-size:.95rem;color:var(--muted);margin-top:.5rem}.tag{display:inline-block;background:var(--accent-bg);color:var(--accent);border:1px solid var(--border);border-radius:20px;padding:.2rem .7rem;font-size:.78rem;font-weight:500}.ns-layout{display:grid;grid-template-columns:220px 1fr;gap:3rem;align-items:start;padding-top:2.5rem;padding-bottom:4rem}.ns-sidebar{position:sticky;top:2rem}.toc-mobile-toggle{display:none}.ns-toc{display:flex;flex-direction:column;gap:.1rem}.toc-title{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.6rem;padding-left:.5rem}.toc-link{display:block;width:100%;text-align:left;background:none;border:none;cursor:pointer;font-family:var(--ff-body);font-size:.82rem;color:var(--muted);padding:.3rem .5rem;border-radius:5px;transition:color .15s,background .15s;line-height:1.4}.toc-link:hover{color:var(--accent);background:var(--accent-bg)}.toc-link.active{color:var(--accent);font-weight:600;background:var(--accent-bg)}.ns-content{min-width:0}.ns-section{padding:2.5rem 0;border-bottom:1px solid var(--border)}.ns-section:last-of-type{border-bottom:none}.ns-section h2{font-size:1.3rem;font-weight:700;color:var(--text);margin-bottom:1.2rem;display:flex;align-items:center;gap:.6rem}.ns-section h2:before{content:"";display:inline-block;width:4px;height:1.1em;background:var(--accent);border-radius:2px;flex-shrink:0}.ns-section h3{font-size:1.05rem;font-weight:600;color:var(--text);margin-top:1.5rem;margin-bottom:.7rem}.ns-section h4{font-size:.95rem;font-weight:600;color:var(--text);margin-top:1.2rem;margin-bottom:.5rem}.ns-section p{margin-bottom:.8rem;color:var(--text)}.ns-section ul,.ns-section ol{padding-left:1.4rem;margin-bottom:.9rem}.ns-section li{margin-bottom:.35rem}.ns-section table{width:100%;border-collapse:collapse;font-size:.9rem;margin-top:.8rem;margin-bottom:.8rem}.ns-section th{background:var(--accent-bg);padding:.6rem .8rem;text-align:left;border:1px solid var(--border);font-weight:600;font-size:.85rem}.ns-section td{padding:.5rem .8rem;border:1px solid var(--border)}.artifact-card{background:#ffffff73;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:10px;padding:1.5rem;margin:2rem 0;overflow:hidden}.artifact-card h4{color:var(--accent);font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 1.2rem;font-weight:700}.formula-card{background:#ffffff73;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:10px;padding:1.2rem 1.5rem;margin:1.2rem 0;transition:border-color .2s ease}.formula-card:hover{border-color:#2a3a5a}.formula-legend{display:flex;flex-wrap:wrap;gap:.5rem 1rem;margin-top:.8rem}.formula-legend-item{display:flex;align-items:center;gap:.4rem;font-size:.82rem;color:var(--muted)}.formula-legend-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.katex-display{overflow-x:auto;overflow-y:hidden}input[type=range]{cursor:pointer}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}.ns-nav{position:fixed;top:0;left:0;right:0;z-index:9999;display:flex;align-items:center;justify-content:space-between;padding:1.1rem var(--gut);background:#e7ebefd1;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);border-bottom:1px solid var(--border);color:var(--text)}.nav-mark{font-family:var(--ff-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:inherit;border:none}.nav-mark .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:currentColor;margin-right:.55em;transform:translateY(-1px);opacity:.9}.ns-nav-links{display:flex;align-items:center;gap:1.6rem}.ns-nav-links a{font-family:var(--ff-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:inherit;opacity:.7;border:none;padding:.25rem 0;position:relative;text-decoration:none}.ns-nav-links a:hover{opacity:1;color:inherit;text-decoration:none}.ns-nav-links a.field-notes{opacity:1;padding-left:.9rem}.ns-nav-links a.field-notes:before{content:"";position:absolute;left:0;top:50%;width:14px;height:1px;background:currentColor;transform:translateY(-50%)}.nav-pipe{opacity:.4;font-family:var(--ff-mono);-webkit-user-select:none;user-select:none;color:var(--text)}.ns-nav-burger{display:none;color:inherit;font-size:18px;padding:.4rem .6rem;border:1px solid currentColor;background:none;cursor:pointer}.ml-topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-top:2rem}.ml-topic-card{background:#ffffff73;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:10px;padding:1.1rem 1.3rem;transition:border-color .2s ease;text-decoration:none;display:block}.ml-topic-card:hover{border-color:#2a3a5a;text-decoration:none}.ml-topic-card.coming-soon{opacity:.55;cursor:default;pointer-events:none}.ml-topic-num{font-size:.72rem;font-family:monospace;color:var(--accent-light);font-weight:600;margin-bottom:.3rem}.ml-topic-name{font-size:.9rem;font-weight:600;color:var(--text);line-height:1.3}.ml-topic-badge{display:inline-block;margin-top:.5rem;font-size:.7rem;background:var(--accent-bg);color:var(--accent);border-radius:4px;padding:.1rem .45rem;font-weight:600}.ml-topic-badge.soon{background:#f5f5f5;color:var(--muted)}@media (max-width: 768px){.container{padding:0 1rem}.ns-nav-burger{display:block}.ns-nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:flex-start;gap:1rem;padding:1.4rem var(--gut);background:#e7ebeff7;color:var(--text);border-bottom:1px solid var(--border)}.ns-nav-links.mobile-open{display:flex}.ns-nav-links a{width:auto;padding:.25rem 0;font-size:11px}.nav-pipe{display:none}.ns-header{padding-top:calc(var(--nav-height) + 2rem);padding-bottom:1.5rem}.ns-title{font-size:1.5rem}.ns-layout{grid-template-columns:1fr;gap:0;padding-top:1rem}.ns-sidebar{position:static;margin-bottom:1rem}.toc-mobile-toggle{display:block;width:100%;padding:.55rem 1rem;background:var(--accent-bg);border:1px solid var(--border);border-radius:8px;color:var(--accent);font-family:var(--ff-body);font-size:.85rem;font-weight:600;cursor:pointer;text-align:left;margin-bottom:.5rem}.ns-toc{display:none;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:.8rem}.ns-toc.mobile-open{display:flex}.ns-section{padding:1.8rem 0}.artifact-card{background:#ffffff73;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:10px;padding:1.5rem;margin:2rem 0;overflow:hidden}.formula-card{background:#ffffff73;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:10px;padding:1.2rem 1.5rem;margin:1.2rem 0;transition:border-color .2s ease}.formula-card:hover{border-color:#2a3a5a}.ml-topic-grid{grid-template-columns:1fr 1fr}}footer.footer{padding:clamp(2.5rem,6vh,4rem) var(--gut) 2rem;background:var(--text);color:var(--bg);position:relative;overflow:hidden}.footer-bg{position:absolute;top:0;right:0;bottom:0;left:0;background-image:url(/assets/hero-clouds.jpeg);background-size:cover;background-position:center 30%;opacity:.18;filter:grayscale(.4)}.footer-inner{position:relative;max-width:1100px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:2rem}.footer-left{display:flex;flex-direction:column}.footer-email{font-family:var(--ff-mono);font-size:11px;letter-spacing:.16em;text-transform:lowercase;color:#e7ebefd9;margin:0}.footer-copy{font-family:var(--ff-mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:#e7ebef80;margin:0;text-align:right}