.landing{--landing-column:min(1040px, calc(100% - 40px));--landing-rails-width:min(1120px, calc(100% - 40px));--landing-rail:var(--kai-color-line);--landing-rail-mark:var(--kai-color-line-strong);--landing-on-dark:var(--kai-color-surface);--landing-on-dark-muted:color-mix(in srgb, var(--kai-color-surface) 74%, var(--kai-color-ink));--landing-on-dark-soft:color-mix(in srgb, var(--kai-color-surface) 56%, var(--kai-color-ink));--landing-on-dark-line:color-mix(in srgb, var(--kai-color-surface) 8%, transparent);--landing-on-dark-border:color-mix(in srgb, var(--kai-color-surface) 18%, transparent);background:var(--kai-color-surface)}.page.landing :is(a,button,summary):focus-visible{outline:var(--kai-focus-ring);outline-offset:3px}.landing-section{position:relative}.landing-column{z-index:1;width:var(--landing-column);margin-inline:auto;position:relative}.landing-rails{z-index:0;width:var(--landing-rails-width);pointer-events:none;position:absolute;top:0;bottom:0;left:50%;transform:translate(-50%)}.landing-rails-cut{border-top:1px solid var(--landing-rail)}.landing-rails-cut:before,.landing-rails-cut:after{content:"";background:linear-gradient(var(--landing-rail-mark), var(--landing-rail-mark)) center / 1px 100% no-repeat, linear-gradient(var(--landing-rail-mark), var(--landing-rail-mark)) center / 100% 1px no-repeat;width:9px;height:9px;position:absolute;top:-5px}.landing-rails-cut:before{left:-5px}.landing-rails-cut:after{right:-5px}@media (min-width:1200px){.landing-rails{border-inline:1px solid var(--landing-rail)}}.landing-head{max-width:680px;margin-bottom:40px}.landing-head-center{text-align:center;flex-direction:column;align-items:center;margin-inline:auto;display:flex}.landing-pill{border:1px solid var(--kai-color-line-strong);border-radius:var(--kai-radius-pill);color:var(--kai-color-ink-muted);font-size:11px;font-weight:var(--kai-weight-medium);letter-spacing:.07em;text-transform:uppercase;align-items:center;margin:0 0 22px;padding:5px 10px;line-height:14px;display:inline-flex}.landing-title{color:var(--kai-color-ink);font-size:clamp(32px,3.2vw + 12px,52px);font-weight:var(--kai-weight-medium);letter-spacing:-.03em;text-wrap:balance;margin:0;line-height:1.08}.landing-title>span{display:block}.landing-title-muted{color:var(--kai-color-ink-muted)}.landing-lead{max-width:660px;color:var(--kai-color-ink-muted);text-wrap:pretty;margin:20px 0 0;font-size:18px;line-height:28px}.landing-actions{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:32px;display:flex}.landing-button{border-radius:var(--kai-radius-pill);min-height:40px;font-size:15px;font-weight:var(--kai-weight-medium);white-space:nowrap;transition:color var(--kai-duration-base), background-color var(--kai-duration-base), transform var(--kai-duration-base) var(--kai-ease);border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 18px;line-height:1;display:inline-flex}.landing-button svg{width:16px;height:16px;transition:transform var(--kai-duration-base) var(--kai-ease)}.landing .landing-button-primary{color:var(--kai-color-accent-ink);background:var(--kai-color-accent)}.landing .landing-button-light{color:var(--kai-color-ink);background:var(--kai-color-surface)}.landing .landing-button-ghost{color:var(--landing-on-dark)}.landing-logo{object-fit:contain;flex:none;width:18px;height:18px}.landing-logo-initial{color:var(--kai-color-ink-soft);background:var(--kai-color-fill);font-size:11px;font-weight:var(--kai-weight-strong);border-radius:5px;place-items:center;display:inline-grid}.landing-logo-chip{border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-sm);min-height:32px;color:var(--kai-color-ink);background:var(--kai-color-surface);white-space:nowrap;align-items:center;gap:8px;padding:0 12px;font-size:14px;line-height:1;display:inline-flex}.landing-logo-chip-sm{gap:6px;min-height:28px;padding:0 8px;font-size:13px}.landing-logo-chip-sm .landing-logo{width:16px;height:16px}.landing-chip-row{flex-wrap:wrap;gap:8px;display:flex}.landing-mini-chip{min-height:20px;color:var(--kai-color-ink-soft);background:var(--kai-color-fill);white-space:nowrap;border-radius:5px;align-items:center;padding:0 7px;font-size:12px;line-height:1;display:inline-flex}.landing-mini-chip-outline{border:1px solid var(--kai-color-line-strong);background:var(--kai-color-surface)}button.landing-mini-chip{cursor:pointer;transition:color var(--kai-duration-base), background-color var(--kai-duration-base);border:0}button.landing-mini-chip[aria-expanded=true]{color:var(--kai-color-accent-strong);background:var(--kai-color-accent-soft)}button.landing-logo-chip,button.landing-module{cursor:pointer;transition:border-color var(--kai-duration-base), background-color var(--kai-duration-base), box-shadow var(--kai-duration-base), transform var(--kai-duration-base) var(--kai-ease)}:is(button.landing-logo-chip,button.landing-module)[aria-pressed=true]{border-color:var(--kai-color-accent);background:var(--kai-color-accent-soft)}.landing-sr{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.landing .landing-note-trigger{cursor:pointer}.landing-note-bubble{z-index:var(--kai-z-menu);border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-md);width:max-content;max-width:min(300px,100vw - 24px);color:var(--kai-color-ink);background:var(--kai-color-surface);box-shadow:var(--kai-shadow-md);font-size:13px;font-weight:var(--kai-weight-regular);letter-spacing:normal;text-align:left;text-transform:none;white-space:normal;gap:4px;margin:0;padding:12px 14px 13px;line-height:19px;display:grid;position:fixed;inset:auto;overflow:visible}.landing-note-bubble[data-open=false]{display:none}.landing-note-bubble:before{content:"";left:var(--landing-note-arrow,50%);background:var(--kai-color-surface);width:10px;height:10px;margin-left:-5px;position:absolute;transform:rotate(45deg)}.landing-note-bubble[data-side=below]:before{border-top:1px solid var(--kai-color-line);border-left:1px solid var(--kai-color-line);top:-6px}.landing-note-bubble[data-side=above]:before{border-right:1px solid var(--kai-color-line);border-bottom:1px solid var(--kai-color-line);bottom:-6px}.landing-note-bubble .landing-tag{margin-bottom:2px}.landing-note-title{color:var(--kai-color-ink);font-weight:var(--kai-weight-medium)}.landing-note-text{color:var(--kai-color-ink-soft)}.landing-note-quote{color:var(--kai-color-ink)}.landing-note-meta{color:var(--kai-color-ink-muted);font-size:12px;line-height:17px}.landing-cite{width:18px;height:18px;color:var(--kai-color-accent-strong);background:var(--kai-color-accent-soft);font-size:11px;font-weight:var(--kai-weight-medium);font-variant-numeric:tabular-nums;transition:color var(--kai-duration-base), background-color var(--kai-duration-base);border:0;border-radius:50%;flex:none;place-items:center;margin-top:3px;padding:0;line-height:1;display:inline-grid;position:relative}button.landing-cite:after{content:"";position:absolute;inset:-8px}.landing .landing-cite-action{cursor:pointer}.landing-cite-action[data-on=true],.landing-cite.landing-note-trigger[aria-expanded=true]{color:var(--kai-color-accent-ink);background:var(--kai-color-accent)}.landing-tag{border-radius:var(--kai-radius-pill);width:fit-content;min-height:22px;font-size:12px;font-weight:var(--kai-weight-medium);align-items:center;padding:0 8px;line-height:1.2;display:inline-flex}.landing-tag-warning{color:var(--kai-color-warning-ink);background:var(--kai-color-warning-soft)}.landing-tag-success{color:var(--kai-color-success-ink);background:var(--kai-color-success-soft);box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--kai-color-success) 14%, transparent)}.landing-tag-neutral{color:var(--kai-color-ink-soft);background:var(--kai-color-fill)}.landing-tag-soon{color:var(--kai-color-accent-strong);background:var(--kai-color-accent-soft)}.landing-action-buttons{flex-wrap:wrap;align-items:center;gap:4px;margin-top:12px;display:flex}.landing-chip-button{border-radius:var(--kai-radius-pill);min-height:32px;color:var(--kai-color-ink);font-size:14px;font-weight:var(--kai-weight-medium);transition:background-color var(--kai-duration-base);background:0 0;border:0;align-items:center;padding:0 12px;line-height:1;display:inline-flex}button.landing-chip-button{cursor:pointer}.landing-chip-button-primary{color:var(--kai-color-accent-ink);background:var(--kai-color-accent)}.landing-card{border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-lg);background:var(--kai-color-surface);flex-direction:column;display:flex;overflow:hidden}.landing-card-wide{grid-column:1/-1}.landing-card-art{background:var(--kai-color-surface-sunken);flex-direction:column;gap:12px;padding:20px;display:flex}.landing-card-copy{padding:22px 24px 24px}.landing-card h3{color:var(--kai-color-ink);font-size:18px;font-weight:var(--kai-weight-medium);letter-spacing:-.01em;margin:0;line-height:24px}.landing-card-copy p,.landing-weeks>p{color:var(--kai-color-ink-muted);text-wrap:pretty;margin:8px 0 0;font-size:15px;line-height:22px}.landing-card-copy .landing-card-note{margin-top:18px;font-size:13px}.landing-card-note+.landing-chip-row{margin-top:10px}.landing-accordion details{border-bottom:1px solid var(--kai-color-line)}.landing-accordion summary{min-height:64px;color:var(--kai-color-ink);font-size:18px;font-weight:var(--kai-weight-medium);cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:16px 0;line-height:24px;list-style:none;display:flex}.landing-accordion summary::-webkit-details-marker{display:none}.landing-accordion details p{max-width:580px;color:var(--kai-color-ink-soft);text-wrap:pretty;margin:-4px 0 22px;font-size:15px;line-height:23px}.landing-toggle{width:12px;height:12px;color:var(--kai-color-ink-muted);flex:none;position:relative}.landing-toggle:before,.landing-toggle:after{content:"";width:12px;height:1.5px;transition:transform var(--kai-duration-slow) var(--kai-ease);background:currentColor;border-radius:1px;margin-top:-.75px;position:absolute;top:50%;left:0}.landing-toggle:after{transform:rotate(90deg)}details[open]>summary .landing-toggle:after{transform:rotate(0)}.landing-hero{--landing-rail:var(--landing-on-dark-line);isolation:isolate;color:var(--landing-on-dark);background:var(--kai-color-ink);padding:88px 0 104px;overflow:hidden}.landing-hero:after{content:"";z-index:1;background:linear-gradient(transparent, var(--kai-color-surface));pointer-events:none;height:320px;position:absolute;bottom:0;left:0;right:0}.landing-hero-copy{z-index:2;text-align:center;flex-direction:column;align-items:center;display:flex}.landing-hero-title{max-width:1000px;color:var(--landing-on-dark);font-size:clamp(36px,4.2vw,60px);font-weight:var(--kai-weight-medium);letter-spacing:-.03em;text-wrap:balance;margin:0;line-height:1.08}.landing-hero-title>span{display:block}.landing-hero-lead{max-width:760px;color:var(--landing-on-dark-muted);text-wrap:pretty;margin:24px 0 0;font-size:18px;line-height:28px}.landing-console{--landing-float-limit:calc(12px - max(20px, (100vw - 1120px) / 2));z-index:2;width:min(1120px,100% - 40px);margin:56px auto 0;position:relative}.landing-floats{margin:0;padding:0;list-style:none}.landing-float{z-index:1;position:absolute}.landing-float .landing-logo-chip{border-radius:var(--kai-radius-md);min-height:40px;box-shadow:var(--kai-shadow-md);gap:10px;padding:0 14px;font-size:15px}.landing-float .landing-logo{width:20px;height:20px}.landing-float .landing-logo-chip[aria-expanded=true]{border-color:var(--kai-color-accent)}.landing-float-left-1{top:17%;left:max(-117px, var(--landing-float-limit))}.landing-float-left-2{top:49.2%;left:max(-86px, var(--landing-float-limit))}.landing-float-left-3{top:81.4%;left:max(-85px, var(--landing-float-limit))}.landing-float-right-1{top:20.6%;right:max(-77px, var(--landing-float-limit))}.landing-float-right-2{top:50.7%;right:max(-57px, var(--landing-float-limit))}.landing-float-right-3{top:79.2%;right:max(-101px, var(--landing-float-limit))}.landing-definition{isolation:isolate;background:var(--kai-color-surface);padding:112px 0;overflow:hidden}.landing-definition-text{max-width:880px;color:var(--kai-color-ink-soft);letter-spacing:-.012em;text-align:center;text-wrap:pretty;margin:0 auto;font-size:clamp(21px,1.2vw + 10px,28px);line-height:1.5}.landing-definition-text strong{color:var(--kai-color-ink);font-weight:var(--kai-weight-medium)}.landing-block{background:var(--kai-color-surface);padding:100px 0 96px}.landing-demo-tabs{border-radius:var(--kai-radius-pill);background:var(--kai-color-fill);scrollbar-width:none;gap:2px;width:max-content;max-width:100%;margin:0 auto 40px;padding:4px;display:flex;overflow-x:auto}.landing-demo-tabs::-webkit-scrollbar{display:none}.landing-demo-tab{border-radius:var(--kai-radius-pill);min-height:40px;color:var(--kai-color-ink-soft);white-space:nowrap;cursor:pointer;transition:color var(--kai-duration-base), background-color var(--kai-duration-base);background:0 0;border:0;flex:none;padding:0 16px;font-size:17px;line-height:1}.landing-demo-tab[aria-selected=true]{color:var(--kai-color-ink);background:var(--kai-color-surface);box-shadow:var(--kai-shadow-sm);font-weight:var(--kai-weight-medium)}.landing-demo-panel{border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-lg);background:var(--kai-color-surface);overflow:hidden}.landing-demo-ask{border-bottom:1px solid var(--kai-color-line);align-items:center;gap:12px;padding:16px;display:flex}.landing-demo-question{min-height:36px;color:var(--kai-color-ink);background:var(--kai-color-surface-sunken);border-radius:18px;flex:1;align-items:center;gap:10px;margin:0;padding:6px 16px;font-size:14px;line-height:20px;display:flex}.landing-demo-question svg{color:var(--kai-color-ink-muted);flex:none}.landing-demo-ask-button{border-radius:var(--kai-radius-pill);min-height:36px;color:var(--kai-color-accent-ink);background:var(--kai-color-accent);font-size:14px;font-weight:var(--kai-weight-medium);cursor:pointer;transition:background-color var(--kai-duration-base);border:0;flex:none;align-items:center;padding:0 16px;line-height:1;display:inline-flex}.landing-demo-body{grid-template-columns:236px minmax(0,1fr) 272px;display:grid}.landing-demo-label{color:var(--kai-color-ink-muted);font-size:11px;font-weight:var(--kai-weight-medium);letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;line-height:14px}.landing-demo-sources{border-right:1px solid var(--kai-color-line);background:var(--kai-color-canvas);padding:24px 20px}.landing-demo-sources ul{gap:8px;margin:0 0 20px;padding:0;list-style:none;display:grid}.landing-demo-sources ul:last-child{margin-bottom:0}.landing-source{border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-sm);width:100%;min-height:38px;color:var(--kai-color-ink-muted);background:var(--kai-color-surface);text-align:left;transition:color var(--kai-duration-base), border-color var(--kai-duration-base), background-color var(--kai-duration-base);align-items:center;gap:10px;padding:0 12px;font-size:14px;line-height:1.2;display:flex}.landing-source .landing-logo{transition:opacity var(--kai-duration-base)}.landing-demo-sources[data-lit=false] .landing-source .landing-logo{opacity:.55}.landing-demo-sources[data-lit=true] button.landing-source:not(.landing-source-off){border-color:var(--kai-color-accent);color:var(--kai-color-ink)}.landing-source[data-on=true]{background:var(--kai-color-accent-soft)}.landing-source-off{border-color:var(--kai-color-line);color:color-mix(in srgb, var(--kai-color-ink-muted) 70%, transparent);background:color-mix(in srgb, var(--kai-color-surface) 60%, transparent)}.landing-source-off .landing-logo{filter:grayscale();opacity:.45}.landing-source-off[aria-expanded=true]{border-color:var(--kai-color-line-strong);color:var(--kai-color-ink-soft);background:var(--kai-color-surface)}.landing-demo-answer{padding:24px}.landing-demo-stack{display:grid}.landing-demo-stack>*{grid-area:1/1;min-width:0}.landing-demo-ghost{visibility:hidden}.landing-demo-sentence{color:var(--kai-color-ink);grid-template-columns:minmax(0,1fr) auto;gap:16px;margin:0 0 12px;font-size:16px;line-height:24px;display:grid}.landing-demo-sentence-text{transition:background-color var(--kai-duration-base);border-radius:6px;margin:-2px -6px;padding:2px 6px}.landing-demo-sentence[data-on=true] .landing-demo-sentence-text{background:var(--kai-color-accent-soft)}.landing-demo-sentence[data-on=true] .landing-cite,.landing-evidence-card[data-on=true] .landing-cite{color:var(--kai-color-accent-ink);background:var(--kai-color-accent)}.landing-demo-arrive{animation:landing-arrive .32s var(--kai-ease) both}@keyframes landing-arrive{0%{opacity:0;transform:translateY(4px)}}.landing-demo-searching{color:var(--kai-color-ink-muted);flex-wrap:wrap;align-items:center;gap:10px;margin:0;font-size:16px;line-height:24px;display:flex}.landing-dots{gap:4px;display:inline-flex}.landing-dots i{background:var(--kai-color-accent);opacity:.25;border-radius:50%;width:5px;height:5px;animation:1.2s ease-in-out infinite landing-dot}.landing-dots i:nth-child(2){animation-delay:.15s}.landing-dots i:nth-child(3){animation-delay:.3s}@keyframes landing-dot{40%{opacity:1}}.landing-demo-reveal{opacity:0;visibility:hidden;transform:translateY(6px)}.landing-demo-reveal[data-ready=true]{opacity:1;visibility:visible;transition:opacity .32s var(--kai-ease), transform .32s var(--kai-ease);transform:none}.landing-demo-answer .landing-demo-reveal{margin-top:12px}.landing-evidence{gap:8px;margin:0;padding:0;list-style:none;display:grid}.landing-evidence-card{border:1px solid var(--kai-color-line-strong);width:100%;color:var(--kai-color-ink);background:var(--kai-color-surface);text-align:left;transition:border-color var(--kai-duration-base), background-color var(--kai-duration-base);border-radius:10px;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:10px;padding:11px 14px 12px;display:grid}.landing-evidence-card .landing-cite{margin-top:1px}.landing-evidence-card[data-on=true]{border-color:var(--kai-color-accent);background:var(--kai-color-accent-soft)}.landing-evidence-text{gap:2px;min-width:0;font-size:14px;line-height:20px;display:grid}.landing-evidence-text strong{font-weight:var(--kai-weight-medium)}.landing-evidence-text span{color:var(--kai-color-ink-soft)}.landing-evidence-text small{color:var(--kai-color-ink-muted);font-size:12px;line-height:17px}.landing-demo-actions{border-left:1px solid var(--kai-color-line);padding:24px 20px}.landing-demo-actions .landing-demo-reveal{align-content:start;gap:12px;display:grid}.landing-action{border:1px solid var(--kai-color-line);border-radius:var(--kai-radius-md);background:var(--kai-color-surface);padding:14px}.landing-action-text{color:var(--kai-color-ink);text-wrap:pretty;margin:10px 0 0;font-size:15px;line-height:21px}.landing-action-detail{color:var(--kai-color-ink-muted);margin:8px 0 0;font-size:12px;line-height:17px}.landing-source,.landing-evidence-card,button.landing-cite{font:inherit;cursor:default}button.landing-cite{font-size:11px;font-weight:var(--kai-weight-medium);line-height:1}.landing-where-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;display:grid}.landing-where-grid .landing-card-art{justify-content:center;min-height:220px;padding:24px}.landing-shared{text-align:center;align-items:center}.landing-shared>p{max-width:380px;color:var(--kai-color-ink-soft);margin:0;font-size:14px;line-height:20px}.landing-shared 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