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input:checked+span{background:var(--app-accent-bg);border-color:var(--app-accent);color:var(--app-accent-hover)}.theme-switch-hint,.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:640px){.theme-switch{right:.75rem;bottom:.75rem;gap:.35rem;padding:.4rem .5rem}.theme-switch-option span{width:2rem;height:2rem}}[data-theme=light] .app{background:var(--app-bg);color:var(--app-text)}[data-theme=light] .hero,[data-theme=light] .section,[data-theme=light] .account-panel,[data-theme=light] .footer{background:var(--app-bg);border-color:var(--app-border)}[data-theme=light] .section-alt,[data-theme=light] .section-demo{background:var(--app-surface-strong);border-color:var(--app-border)}[data-theme=light] .hero-copy h1,[data-theme=light] .section-title,[data-theme=light] .kernel-title,[data-theme=light] .account-main h3,[data-theme=light] .pricing-head h3,[data-theme=light] .pipeline-title,[data-theme=light] .domain-label,[data-theme=light] .segment-title,[data-theme=light] .footer-brand,[data-theme=light] .panel-line strong,[data-theme=light] .demo-idle p{color:var(--app-text-strong)}[data-theme=light] .brand-mark,[data-theme=light] .stat-pill strong,[data-theme=light] .sep-val,[data-theme=light] .title-accent,[data-theme=light] .eyebrow,[data-theme=light] .kernel-label,[data-theme=light] .stat-num,[data-theme=light] .stat strong,[data-theme=light] .result-val,[data-theme=light] .result-ratio strong,[data-theme=light] .demo-link,[data-theme=light] .pricing-card.highlighted,[data-theme=light] .segment-tag,[data-theme=light] .pipeline-tag,[data-theme=light] .pt-step.active,[data-theme=light] .pt-step.active .pt-dot{color:var(--app-accent)}[data-theme=light] .hero-panel,[data-theme=light] .stat-pill,[data-theme=light] .kernel-card,[data-theme=light] .kernel-formula,[data-theme=light] .kgram-explainer,[data-theme=light] .demo-panel,[data-theme=light] .demo-controls,[data-theme=light] .demo-meta,[data-theme=light] .demo-result,[data-theme=light] .result-metric,[data-theme=light] .result-ratio,[data-theme=light] .account-card,[data-theme=light] .pricing-card,[data-theme=light] .pipeline-card,[data-theme=light] .domain-card,[data-theme=light] .segment-card,[data-theme=light] .score-sep-box,[data-theme=light] .serialized-block{background:var(--app-surface);border-color:var(--app-border)}[data-theme=light] .panel-header,[data-theme=light] .panel-footer,[data-theme=light] .demo-select,[data-theme=light] .k-btn,[data-theme=light] .pipeline-tag,[data-theme=light] .theme-switch-option span,[data-theme=light] .account-key code{background:var(--app-surface-strong);border-color:var(--app-border);color:var(--app-text-muted)}[data-theme=light] .panel-status,[data-theme=light] .sep-badge{background:var(--app-success-bg);color:var(--app-success)}[data-theme=light] .kernel-formula{color:var(--app-text-strong);box-shadow:inset 0 0 0 1px #4338ca14}[data-theme=light] .kgram-explainer{background:linear-gradient(180deg,#4338ca0f,#ffffffb8);border-left-color:var(--app-accent)}[data-theme=light] .kgram-explainer p{color:var(--app-text-strong)}[data-theme=light] .kgram-explainer strong{color:var(--app-accent-hover)}[data-theme=light] .pipeline-tag,[data-theme=light] .segment-tag{background:var(--app-accent-bg);border:1px solid var(--app-border);color:var(--app-accent-hover)}[data-theme=light] .cta-secondary,[data-theme=light] .btn.ghost,[data-theme=light] .footer-links a,[data-theme=light] .demo-footer-note,[data-theme=light] .section-sub,[data-theme=light] .lead,[data-theme=light] .hero-tagline,[data-theme=light] .panel-line,[data-theme=light] .kernel-note,[data-theme=light] .stat-pill span,[data-theme=light] .demo-meta-key,[data-theme=light] .demo-meta-val,[data-theme=light] .result-origin,[data-theme=light] .result-key,[data-theme=light] .result-desc,[data-theme=light] .result-interp,[data-theme=light] .result-note,[data-theme=light] .account-main p,[data-theme=light] .account-hint,[data-theme=light] .account-row,[data-theme=light] .usage-top,[data-theme=light] .pricing-card p,[data-theme=light] .pricing-card ul,[data-theme=light] .pipeline-detail,[data-theme=light] .domain-card p,[data-theme=light] .segment-focus,[data-theme=light] .footer-tagline,[data-theme=light] .pt-step,[data-theme=light] .score-sep-box span,[data-theme=light] .serialized-block span,[data-theme=light] .serialized-block small{color:var(--app-text-muted)}[data-theme=light] .btn.primary,[data-theme=light] .cta-primary,[data-theme=light] .demo-run-btn,[data-theme=light] .account-btn.primary,[data-theme=light] .pricing-btn.primary,[data-theme=light] .k-btn.active,[data-theme=light] .pt-step.active .pt-dot{background:var(--app-accent);border-color:var(--app-accent);color:#fff}[data-theme=light] .btn.primary:hover,[data-theme=light] .cta-primary:hover,[data-theme=light] .demo-run-btn:hover:not(:disabled),[data-theme=light] .account-btn.primary:hover,[data-theme=light] .pricing-btn.primary:hover,[data-theme=light] .demo-link:hover,[data-theme=light] .btn.ghost:hover,[data-theme=light] .cta-secondary:hover{background:var(--app-accent-hover);border-color:var(--app-accent-hover);color:#fff}[data-theme=light] .track-item.done,[data-theme=light] .pt-step.done{color:var(--app-text-soft);text-decoration-color:var(--app-text-soft)}[data-theme=light] .track-item.active{background:var(--app-accent-bg);color:var(--app-accent-hover)}[data-theme=light] .demo-idle,[data-theme=light] .demo-idle-icon{color:var(--app-text-soft)}[data-theme=light] .demo-spinner{border-color:var(--app-border);border-top-color:var(--app-accent)}[data-theme=light] .demo-error,[data-theme=light] .result-note,[data-theme=light] .account-error{background:var(--app-danger-bg);border-color:var(--app-danger-border);color:var(--app-danger)}[data-theme=light] .account-message{background:var(--app-success-bg);border-color:var(--app-success-border);color:var(--app-success)}[data-theme=light] .result-badge.win{background:var(--app-success-bg);color:var(--app-success)}[data-theme=light] .result-badge.warn{background:var(--app-warning-bg);color:var(--app-warning)}[data-theme=light] .result-badge.fail{background:var(--app-danger-bg);color:var(--app-danger)}[data-theme=light] .score-sep-box.secondary{border-color:var(--app-border)}[data-theme=light] .score-sep-box.secondary strong{color:var(--app-text)}@media(prefers-reduced-motion:reduce){.demo-spinner,.pt-step.active .pt-dot{animation:none!important}}