:root{--x-header:61px}.x-kicker{letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-size:.8rem;font-weight:700}.x-tag{white-space:nowrap;border:1.5px dashed var(--line-strong);color:var(--ink-soft);background:var(--surface);border-radius:999px;align-items:center;gap:.35rem;padding:1px 10px;font-size:.8rem;font-weight:700;line-height:1.5;display:inline-flex}.xstory{--x-stage-h:clamp(280px, 48svh, 620px);--x-cover:calc(var(--x-header) + var(--x-stage-h) + 16px);padding-top:8px;padding-bottom:24px;position:relative}.xstory-grid{grid-template-columns:minmax(0,1fr);display:grid}.xstory-stage{top:var(--x-header);z-index:10;height:var(--x-stage-h);background:var(--bg);max-height:620px;padding:8px 0 10px;position:sticky}.xstory-stage:after{content:"";background:linear-gradient(var(--bg), transparent);pointer-events:none;height:16px;position:absolute;bottom:-16px;left:0;right:0}.xstory-scenes{margin:0;padding:0;list-style:none}.xscene{min-height:74svh;padding:26px 0}.xscene:last-child{min-height:62svh}.xscene-card{padding:18px 16px;transition:background-color .24s,color .24s,transform .24s cubic-bezier(.2,.8,.2,1);position:relative}.xscene-card:before{content:"";background:var(--accent);transform-origin:top;border-radius:0 3px 3px 0;width:3px;transition:transform .32s cubic-bezier(.2,.8,.2,1);position:absolute;top:16px;bottom:16px;left:-1px;transform:scaleY(0)}.xscene[data-on] .xscene-card:before{transform:scaleY(1)}.xstory[data-js] .xscene:not([data-on]) .xscene-card{background:var(--bg);color:var(--ink-soft);box-shadow:none}.xscene-no{color:var(--ink-soft);margin:0 0 6px;font-size:.85rem}.xscene-no b{color:var(--accent);font-size:1.05rem}.xscene-body{margin-top:8px}.xscene-body p{margin:0 0 .85em}.xscene-body p:last-child{margin-bottom:0}.xscene-body a{color:var(--accent);text-underline-offset:3px;text-decoration:underline}.xscene-body ul{margin:0 0 .85em;padding-left:1.2em;list-style:outside}.xscene-body li{margin:.2em 0}.x-acts{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.xstory:not([data-js]) .x-act{display:none}.xscene-body :is(a,button,input,select,textarea,summary){scroll-margin-top:max(0px, calc(var(--x-cover) - 5rem))}.xscene{scroll-margin-top:max(0px, calc(var(--x-cover) - 5rem - 14px))}@media (min-width:768px){.xstory{--x-stage-h:clamp(330px, 56svh, 620px)}}@media (min-width:1024px){.xstory-grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start;gap:48px}.xstory{--x-cover:calc(var(--x-header) + 16px)}.xstory-stage{top:calc(var(--x-header) + 20px);height:calc(100svh - var(--x-header) - 40px);background:0 0;grid-area:1/2;min-height:520px;max-height:none;padding:0}.xstory-stage:after{display:none}.xstory-scenes{grid-area:1/1}.xscene{align-items:center;min-height:88svh;padding:40px 0;display:flex}.xscene:first-child{align-items:flex-start;min-height:70svh;padding-top:20px}.xscene-card{padding:24px 24px 22px}}@media (max-height:640px){.xstory{--x-cover:5rem}.xstory-stage{height:auto;min-height:0;max-height:none;padding:8px 0 10px;position:static}.xstory-stage:after{display:none}.x-stage{height:auto}.x-stage-body{overflow:visible}.xscene,.xscene:last-child,.xscene:first-child{min-height:0}.xscene{padding:16px 0}}.x-stage{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);height:100%;box-shadow:inset 0 1px 0 var(--highlight), var(--shadow-lift);flex-direction:column;display:flex;position:relative;overflow:hidden}.x-stage>.letter-flap{flex:none;height:14px}.x-stage>.letter-edge{flex:none}.x-stage-bar{flex:none;align-items:center;gap:8px;padding:0 4px 2px 14px;display:flex}.x-stage-readout{flex:1;align-items:baseline;gap:6px;min-width:0;margin:0;font-size:.85rem;display:flex}.x-stage-readout b{color:var(--accent);font-size:1.05rem}.x-stage-name{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--ink);font-weight:600;overflow:hidden}.x-stage-step{flex:none;display:flex}.x-step{width:48px;height:48px;color:var(--ink);border-radius:999px;place-items:center;display:grid}.x-step svg{fill:none;stroke:currentColor;stroke-width:2px;stroke-linecap:round;stroke-linejoin:round;width:22px;height:22px}.x-step:hover{background:var(--surface-2)}.x-step:disabled{color:var(--line-strong);cursor:default;background:0 0}@media (max-width:400px){.x-stage-bar .x-tag{display:none}}.x-ticks{border-top:1.5px dashed var(--line-strong);border-bottom:1px solid var(--line);flex:none;padding:0 8px;display:flex}.x-tick{border-radius:6px;flex:1;place-items:center;min-width:24px;height:44px;display:grid}.x-tick span{background:var(--line-strong);border-radius:2px;width:100%;max-width:30px;height:4px;transition:background-color .2s,transform .24s cubic-bezier(.2,.9,.3,1.2)}.x-tick.is-past span{background:var(--ink-soft)}.x-tick.is-on span{background:var(--accent);transform:scaleY(1.75)}.x-tick:hover span{background:var(--ink)}.x-stage-body{overscroll-behavior:contain;flex:1;grid-auto-rows:max-content;align-content:start;gap:12px;min-height:0;padding:14px;display:grid;position:relative;overflow:auto}@media (min-width:1024px){.x-stage-body{gap:14px;padding:20px}}.x-stage-body>*{min-width:0;animation:.42s cubic-bezier(.2,.8,.2,1) both x-in}@keyframes x-in{0%{opacity:0;transform:translateY(8px)}}.x-label{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin:0;font-size:.78rem;font-weight:700}.x-box{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg);padding:12px 14px}.x-box>*+*{margin-top:8px}.x-box--agent{border:1.5px dashed color-mix(in srgb, var(--agent) 75%, transparent);background:var(--agent-wash)}.x-box--bad{border:1.5px solid var(--bad);background:var(--bad-wash)}.x-box--good{border:1.5px solid var(--good);background:var(--good-wash)}.x-box--proof{border:1.5px solid var(--proof);background:var(--proof-wash)}.x-code{background:var(--surface-2);color:var(--ink);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:8px;margin:0;padding:10px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem;line-height:1.55}.x-mark{color:var(--agent);font-weight:700}.x-ref{background:var(--accent-wash);color:var(--accent);font-weight:700;font-family:var(--font-sans);font-variant-numeric:tabular-nums;border-radius:4px;padding:0 6px;display:inline-block}.x-hash{font-variant-numeric:tabular-nums;overflow-wrap:anywhere;color:var(--ink-soft);font-size:.8rem}.x-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.x-chips{flex-wrap:wrap;gap:8px;display:flex}.x-chips .chip{min-height:44px}.x-input{border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--surface);width:100%;min-height:48px;color:var(--ink);font:inherit;padding:10px 12px}.x-input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}textarea.x-input{resize:vertical;min-height:96px}.x-list{gap:8px;margin:0;padding:0;list-style:none;display:grid}.x-li{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.x-li>:last-child{flex:1;min-width:0}.x-li.is-bad{border:1.5px solid var(--bad);background:var(--bad-wash)}.x-li.is-off{background:var(--bg);color:var(--ink-soft)}.x-strike{text-decoration:line-through;-webkit-text-decoration-color:var(--bad);text-decoration-color:var(--bad);text-decoration-thickness:2px}.x-flow{color:var(--ink-soft);justify-items:center;gap:6px;font-size:.85rem;display:grid}.x-flow svg{stroke:currentColor;fill:none;stroke-width:2px;width:18px;height:18px}.x-meter{border-radius:999px;height:12px;position:relative;overflow:hidden}.x-meter>span{background:var(--accent);border-radius:999px;transition:width .5s cubic-bezier(.2,.8,.2,1);position:absolute;inset:0 auto 0 0}.x-meter>i{background:var(--ink);width:2px;position:absolute;top:-3px;bottom:-3px}.x-two{gap:12px;display:grid}@media (min-width:640px){.x-two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}.x-range{width:100%;min-height:48px;accent-color:var(--accent)}.x-chat{border-radius:var(--radius-card);background:var(--surface-2);gap:8px;padding:12px;display:grid}.x-bubble{background:var(--surface);border:1px solid var(--line);border-radius:14px 14px 14px 4px;justify-self:start;max-width:100%;padding:10px 12px}.x-bubble-kb{gap:6px;display:grid}.x-bubble-kb>div{grid-auto-columns:1fr;grid-auto-flow:column;gap:6px;display:grid}.x-kb{border:1px solid var(--line-strong);background:var(--surface);border-radius:10px;min-height:44px;padding:4px 8px;font-size:.92rem;font-weight:600}.x-kb:hover{background:var(--accent-wash)}.x-chain{gap:0;margin:0;padding:0;list-style:none;display:grid}.x-rc{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:10px 12px;position:relative}.x-rc+.x-rc{margin-top:18px}.x-rc+.x-rc:before{content:"";border-left:2px solid var(--line-strong);width:0;height:18px;position:absolute;top:-19px;left:28px}.x-rc.is-broken+.x-rc:before,.x-rc.is-cut:before{border-left:2px dashed var(--bad)}.x-rc.is-bad{border:1.5px solid var(--bad);background:var(--bad-wash)}.x-rc.is-ok{border-color:color-mix(in srgb, var(--proof) 60%, var(--line))}.x-rc.is-edited{box-shadow:inset 4px 0 0 var(--warn)}.x-rc-head{flex-wrap:wrap;align-items:baseline;gap:4px 10px;display:flex}.x-rc-seq{color:var(--ink-soft);font-variant-numeric:tabular-nums;font-weight:700}.x-rc-act{font-weight:700}.x-card{gap:14px;height:100%;display:grid}.x-card:hover .x-card-go{text-decoration:underline}