.vt-material{letter-spacing:normal;text-transform:none;white-space:nowrap;word-wrap:normal;font-feature-settings:"liga";-webkit-font-smoothing:antialiased;direction:ltr;font-family:Material Symbols Outlined;font-style:normal;font-weight:400;line-height:1;display:inline-block}.vt-hero{background:radial-gradient(120% 140% at 100% 0,#4f46e5 0%,#4338ca 42%,#312e81 100%);border-radius:20px;padding:3.25rem 2.5rem;position:relative;overflow:hidden;box-shadow:0 16px 32px -8px #4f46e51f,0 4px 8px -2px #4f46e50f}.vt-hero-eyebrow{text-transform:uppercase;letter-spacing:.16em;color:#c7d2fe;margin:0 0 1rem;font-family:SF Mono,Monaco,monospace;font-size:.75rem}.vt-hero h1{color:#fff;letter-spacing:-.03em;max-width:20ch;margin:0 0 1.15rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:clamp(2rem,4vw + 1rem,3.1rem);font-weight:900;line-height:1.06}.vt-hero p{color:#e0e7ff;max-width:46rem;margin:0;font-family:Rubik,system-ui,sans-serif;font-size:1.0625rem;line-height:1.6}.vt-hero p strong{color:#fff;font-weight:700}.vt-doctrine{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin:1.5rem 0 .5rem;display:grid}.vt-doctrine-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:1.25rem 1.35rem}.vt-doctrine-card.accent{background:#eef2ff;border-color:#c7d2fe}.vt-doctrine-icon{color:#4f46e5;margin-bottom:.5rem;font-size:1.4rem}.vt-doctrine-title{color:#0f172a;margin-bottom:.35rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.9375rem;font-weight:700}.vt-doctrine-text{color:#475569;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.55}.vt-doctrine-text code,.vt-lede code,.vt-section-sub code{color:#4338ca;background:#eef2ff;border-radius:4px;padding:.1rem .4rem;font-family:SF Mono,Monaco,monospace;font-size:.8125em}.vt-section{margin-top:2.75rem}.vt-section-label{text-transform:uppercase;letter-spacing:.14em;color:#4f46e5;margin-bottom:.6rem;font-size:.6875rem;font-weight:700}.vt-section-title{color:#0f172a;margin-bottom:.6rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:1.35rem;font-weight:700}.vt-section-sub{color:#475569;max-width:70ch;margin-bottom:1.25rem;font-family:Rubik,system-ui,sans-serif;font-size:.9375rem;line-height:1.6}.vt-section-sub strong{color:#0f172a;font-weight:600}.vt-rule-label{text-transform:uppercase;color:#64748b;letter-spacing:.1em;margin:2.5rem 0 1rem;font-size:.75rem;font-weight:700}.vt-vs{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;display:grid}.vt-vs-card{background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;padding:1.4rem 1.5rem}.vt-vs-card.constant{background:#eef2ff;border-color:#c7d2fe}.vt-vs-tag{text-transform:uppercase;letter-spacing:.08em;align-items:center;gap:.4rem;margin-bottom:.7rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.72rem;font-weight:700;display:inline-flex}.vt-vs-card.constant .vt-vs-tag{color:#4338ca}.vt-vs-card.variable .vt-vs-tag{color:#475569}.vt-vs-tag .vt-material{font-size:1.05rem}.vt-vs-title{color:#0f172a;margin-bottom:.4rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:1.05rem;font-weight:700}.vt-vs-text{color:#475569;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.6}.vt-vs-text strong{color:#0f172a}.vt-vs-list{color:#475569;margin:.8rem 0 0;padding:0;font-family:Rubik,system-ui,sans-serif;font-size:.8rem;line-height:1.5;list-style:none}.vt-vs-list li{margin-bottom:.4rem;padding-left:1.15rem;position:relative}.vt-vs-list li:before{content:"";background:#a5b4fc;border-radius:50%;width:6px;height:6px;position:absolute;top:.5rem;left:0}.vt-vs-card.constant .vt-vs-list li:before{background:#4f46e5}.vt-dims{flex-direction:column;gap:1.15rem;margin-top:.5rem;display:flex}.vt-dim{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:1rem 1.25rem}.vt-dim-ends{color:#475569;justify-content:space-between;margin-bottom:.5rem;font-family:Rubik,system-ui,sans-serif;font-size:.75rem;display:flex}.vt-dim-ends .here{color:#4338ca;font-weight:700}.vt-dim-track{background:#e2e8f0;border-radius:9999px;height:6px;position:relative}.vt-dim-marker{background:#4f46e5;border:2px solid #fff;border-radius:50%;width:14px;height:14px;position:absolute;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 1px #c7d2fe}.vt-dim-note{color:#475569;margin-top:.6rem;font-family:Rubik,system-ui,sans-serif;font-size:.78rem;line-height:1.5}.vt-principle{border-bottom:1px solid #e6e8eb;margin-top:2.25rem;padding-bottom:1.75rem}.vt-principle-head{align-items:center;gap:.75rem;margin-bottom:.75rem;display:flex}.vt-num{color:#fff;background:#4f46e5;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:1.75rem;height:1.75rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.875rem;font-weight:700;display:inline-flex}.vt-principle-title{color:#0f172a;font-family:Red Hat Display,system-ui,sans-serif;font-size:1.2rem;font-weight:700}.vt-lede{color:#475569;max-width:70ch;font-family:Rubik,system-ui,sans-serif;font-size:.9375rem;line-height:1.65}.vt-lede+.vt-lede{margin-top:.75rem}.vt-lede strong{color:#0f172a;font-weight:600}.vt-pair{border:1px solid #e2e8f0;border-radius:12px;grid-template-columns:1fr 1fr;gap:0;margin-top:.75rem;display:grid;overflow:hidden}@media (width<=640px){.vt-pair{grid-template-columns:1fr}}.vt-pair-head{text-transform:uppercase;letter-spacing:.07em;align-items:center;gap:.45rem;padding:.7rem 1.1rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.72rem;font-weight:700;display:flex}.vt-pair-head .vt-material{font-size:1.05rem}.vt-pair-col.do .vt-pair-head{color:#4338ca;background:#eef2ff;border-bottom:1px solid #c7d2fe}.vt-pair-col.dont .vt-pair-head{color:#475569;background:#f8fafc;border-bottom:1px solid #e2e8f0}.vt-pair-col.do{border-right:1px solid #e2e8f0}@media (width<=640px){.vt-pair-col.do{border-bottom:1px solid #e2e8f0;border-right:none}}.vt-pair-list{margin:0;padding:.85rem 1.1rem;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.5;list-style:none}.vt-pair-list li{color:#475569;border-bottom:1px dashed #eef2f7;padding:.4rem 0}.vt-pair-list li:last-child{border-bottom:none}.vt-pair-list .say{color:#0f172a;font-family:SF Mono,Monaco,monospace;font-size:.78rem;font-weight:600}.vt-pair-col.do .vt-pair-list .say{color:#4338ca}.vt-pair-col.dont .vt-pair-list .say{text-decoration:line-through 1px #94a3b8}.vt-pair-list .why{color:#475569;margin-top:.15rem;font-size:.72rem;display:block}.vt-tone-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-top:.5rem;display:grid}.vt-tone-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:1.25rem 1.35rem}.vt-tone-head{align-items:center;gap:.65rem;margin-bottom:.7rem;display:flex}.vt-tone-badge{color:#4f46e5;background:#eef2ff;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.vt-tone-badge .vt-material{font-size:1.2rem}.vt-tone-name{color:#0f172a;font-family:Red Hat Display,system-ui,sans-serif;font-size:.95rem;font-weight:700}.vt-tone-register{text-transform:uppercase;letter-spacing:.06em;color:#64748b;font-family:Rubik,system-ui,sans-serif;font-size:.7rem}.vt-tone-example{color:#0f172a;background:#f8fafc;border-left:3px solid #4f46e5;border-radius:0 6px 6px 0;margin-bottom:.6rem;padding:.6rem .8rem;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.5}.vt-tone-guide{color:#475569;font-family:Rubik,system-ui,sans-serif;font-size:.78rem;line-height:1.55}.vt-tone-guide strong{color:#0f172a}.vt-anatomy{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:.5rem 0 1.25rem;display:grid}.vt-anatomy-step{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;padding:1rem 1.15rem}.vt-anatomy-n{color:#4338ca;letter-spacing:.05em;margin-bottom:.35rem;font-family:SF Mono,Monaco,monospace;font-size:.7rem;font-weight:700}.vt-anatomy-title{color:#0f172a;margin-bottom:.3rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.875rem;font-weight:700}.vt-anatomy-text{color:#475569;font-family:Rubik,system-ui,sans-serif;font-size:.78rem;line-height:1.5}.vt-demo{background:#fff;border:1px solid #e2e8f0;border-radius:10px;margin-top:.5rem;padding:1.25rem}.vt-demo-label{color:#334155;margin-bottom:.35rem;font-family:Rubik,system-ui,sans-serif;font-size:.75rem;font-weight:600;display:block}.vt-demo-input{box-sizing:border-box;color:#0f172a;background:#fff;border:1px solid #ef4444;border-radius:8px;width:100%;padding:.6rem .75rem;font-family:Rubik,system-ui,sans-serif;font-size:.875rem;box-shadow:0 0 0 3px #ef44441f}.vt-demo-msg{color:#991b1b;align-items:flex-start;gap:.4rem;margin-top:.5rem;font-family:Rubik,system-ui,sans-serif;font-size:.8rem;line-height:1.5;display:flex}.vt-demo-msg .vt-material{color:#dc2626;flex-shrink:0;margin-top:.05rem;font-size:1rem}.vt-ethics{background:#0f172a;border-radius:16px;margin-top:2.75rem;padding:2rem 2.25rem}.vt-ethics-title{color:#e0e7ff;margin-bottom:.6rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:1.3rem;font-weight:700}.vt-ethics-lede{color:#c7d2fe;max-width:70ch;font-family:Rubik,system-ui,sans-serif;font-size:.9375rem;line-height:1.65}.vt-ethics-lede strong{color:#fff}.vt-ethics-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1.5rem;display:grid}.vt-ethics-card{background:#1a1f3d;border:1px solid #c7d2fe24;border-radius:10px;padding:1.1rem 1.2rem}.vt-ethics-card-title{color:#e0e7ff;align-items:center;gap:.4rem;margin-bottom:.4rem;font-family:Red Hat Display,system-ui,sans-serif;font-size:.8125rem;font-weight:700;display:flex}.vt-ethics-card-title .vt-material{color:#a5b4fc;font-size:1.05rem}.vt-ethics-card-text{color:#a5b4fc;font-family:Rubik,system-ui,sans-serif;font-size:.78rem;line-height:1.55}.vt-ruleset{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem;display:grid}.vt-rule-item{background:#f8fafc;border:1px solid #e2e8f0;border-left:3px solid #4f46e5;border-radius:10px;padding:1.1rem 1.35rem}.vt-rule-stmt{color:#0f172a;margin:0 0 .5rem;font-family:Rubik,system-ui,sans-serif;font-size:.875rem;font-weight:600;line-height:1.5}.vt-rule-why{color:#475569;margin:0;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.55}.vt-rule-tag{text-transform:uppercase;letter-spacing:.06em;color:#4338ca;background:#eef2ff;border-radius:4px;margin-right:.45rem;padding:.05rem .4rem;font-family:SF Mono,Monaco,monospace;font-size:.6875rem;font-weight:700;display:inline-block}.vt-rule-tag.why{color:#475569;background:#f1f5f9}.vt-decision{counter-reset:step;flex-direction:column;gap:.75rem;display:flex}.vt-decision-step{background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;align-items:flex-start;gap:1rem;padding:1rem 1.25rem;display:flex}.vt-decision-step:before{counter-increment:step;content:counter(step);color:#fff;background:#4f46e5;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-family:Red Hat Display,system-ui,sans-serif;font-size:.8125rem;font-weight:700;display:flex}.vt-decision-text{color:#334155;font-family:Rubik,system-ui,sans-serif;font-size:.875rem;line-height:1.55}.vt-decision-text strong{color:#0f172a}.vt-xlink{color:#4338ca;align-items:center;gap:.3rem;margin-top:.9rem;font-family:Rubik,system-ui,sans-serif;font-size:.78rem;font-weight:600;display:inline-flex}.vt-xlink .vt-material{font-size:1rem}.vt-sources-list{color:#475569;margin:1rem 0 0;padding:0;font-family:Rubik,system-ui,sans-serif;font-size:.8125rem;line-height:1.6;list-style:none}.vt-sources-list li{border-bottom:1px solid #f1f5f9;padding:.55rem 0}.vt-sources-list li:last-child{border-bottom:none}.vt-sources-list strong{color:#0f172a}.vt-sources-list code{color:#475569;word-break:break-word;font-family:SF Mono,Monaco,monospace;font-size:.78em}.vt-spa{text-transform:uppercase;letter-spacing:.05em;color:#4338ca;background:#eef2ff;border-radius:4px;margin-right:.35rem;padding:.05rem .35rem;font-size:.625rem;font-weight:700;display:inline-block}