@font-face{font-family:Alliance;src:url('/assets/alliance-no2.woff2');font-display:swap}:root{--paper:#eeeee9;--ink:#24251f;--blue:#2b43ed;--line:#c9cdc1;--muted:#71776a;--panel:#f6f6f2;--mono:Consolas,'Liberation Mono',monospace}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 Alliance,Arial,sans-serif}button,input,textarea,select{font:inherit;color:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;background:none;border:0;padding:0}button:disabled{opacity:.4;cursor:default}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}:focus-visible{outline:2px solid var(--blue);outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:fixed;top:-80px;background:var(--blue);color:white;padding:12px;z-index:20}.skip:focus{top:10px}.app-header{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 30px;gap:25px}.brand{display:flex;align-items:center;gap:8px;font-size:29px;letter-spacing:-1.5px}.brand svg{width:31px;height:31px;fill:currentColor}.header-caption{font-size:13px;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:24px;font-size:13px}.mode{font:10px var(--mono);padding:7px 9px;border:1px solid var(--line);max-width:230px}.mode.live{color:var(--blue);border-color:#2b43ed55}.studio{display:grid;grid-template-columns:minmax(340px,.78fr) minmax(0,1.4fr);height:calc(100dvh - 78px);max-width:1800px;margin:auto}.conversation{min-height:0;display:flex;flex-direction:column;border-right:1px solid var(--line);padding:0 26px}.conversation-heading{display:flex;justify-content:space-between;gap:16px;padding:23px 0 15px}.eyebrow{font:10px/1.5 var(--mono);text-transform:uppercase;letter-spacing:.035em;color:var(--muted)}.quiet{font-size:11px;white-space:nowrap;color:var(--muted)}.messages{flex:1;overflow:auto;scrollbar-width:thin;padding:22px 2px 14px;scroll-behavior:smooth}.welcome{padding:0 0 18px}.welcome-mark{font-size:43px;color:var(--blue);line-height:1}.welcome h1{font-size:clamp(32px,3.2vw,48px);font-weight:400;line-height:1.08;letter-spacing:-.045em;margin:22px 0}.welcome>p{font-size:15px;line-height:1.65;color:#636b5c;max-width:410px}.starters{margin-top:28px}.starters button{display:flex;width:100%;gap:16px;align-items:center;text-align:left;padding:15px 0;border-top:1px solid var(--line);font-size:14px}.starters button:last-child{border-bottom:1px solid var(--line)}.starters button span{font:10px var(--mono);color:var(--muted)}.starters button b{margin-left:auto;font-weight:400}.starters button:hover{color:var(--blue)}.message{padding:18px 0;border-top:1px solid var(--line)}.message-label{display:flex;align-items:center;gap:9px;font:10px var(--mono);color:var(--muted);margin-bottom:11px}.message-label .dot{width:6px;height:6px;background:var(--blue)}.message.user .message-text{background:#e2e5db;padding:14px 16px}.message-text{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:1.65}.message-tools{font:10px/1.7 var(--mono);color:var(--muted);margin-top:9px}.run-status{font:11px var(--mono);color:var(--blue);min-height:25px;padding:5px 0}.composer{border:1px solid #b8bfaf;background:var(--panel);padding:14px 14px 9px}.composer textarea{display:block;width:100%;border:0;background:transparent;resize:none;min-height:75px;max-height:160px;outline:none;font-size:15px;line-height:1.5}.composer textarea::placeholder{color:#92988b}.composer-bottom{display:flex;align-items:center;justify-content:space-between;gap:10px}.composer-bottom>span{font-size:10px;color:var(--muted);max-width:260px}.send{width:34px;height:34px;background:var(--blue);color:#fff;font-size:24px;line-height:1}.stop{font-size:12px;padding:9px 10px;border:1px solid var(--line)}.privacy-note{font-size:10px;color:var(--muted);line-height:1.5;margin:12px 0 17px}.workspace{display:flex;flex-direction:column;min-height:0}.workspace-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:64px;padding:17px 30px}.workspace-heading>div{display:flex;gap:16px;align-items:center}.revision{font:10px var(--mono);color:var(--blue)}.export-button{font-size:12px;border-bottom:1px solid var(--ink);padding-bottom:4px}.workspace-tabs{display:flex;padding:0 30px;gap:28px;border-bottom:1px solid var(--line)}.workspace-tabs button{font-size:13px;padding:10px 0 14px;border-bottom:2px solid transparent;color:var(--muted)}.workspace-tabs [aria-selected=true]{border-color:var(--blue);color:var(--ink)}.workspace-scroll{overflow:auto;min-height:0;flex:1;scrollbar-width:thin}.panel{padding:28px 30px 35px}.plan-title{display:flex;align-items:center;gap:15px;margin-bottom:25px}.plan-title :is(input,textarea){width:100%;min-width:0;font-size:28px;letter-spacing:-.04em;border:0;background:transparent;outline:none;padding:0}.draft-label{font:9px var(--mono);color:var(--muted);border:1px solid var(--line);padding:5px 7px}.field-label{display:block;font:11px var(--mono);color:var(--muted);margin:18px 0 10px}.goal-input{width:100%;min-height:70px;border:0;border-bottom:1px solid var(--line);background:transparent;resize:vertical;font-size:15px;line-height:1.6;padding:0 0 15px}.settings{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px;margin-top:22px}.settings label{font:10px var(--mono);color:var(--muted)}select{display:block;width:100%;font:13px Alliance,Arial,sans-serif;padding:10px 20px 10px 0;border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0;cursor:pointer;color:var(--ink)}.review-toggle{display:flex;gap:10px;align-items:center;font-size:12px;margin:22px 0 28px;cursor:pointer}.review-toggle input{accent-color:var(--blue);width:15px;height:15px}.diagram-heading{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:12px}.diagram{position:relative;background:#e1e5d9;aspect-ratio:720/320;overflow:hidden}.diagram>svg{position:absolute;inset:0;width:100%;height:100%}.flow-node{position:absolute;width:24%;height:30%;display:flex;flex-direction:column;justify-content:center;gap:7px;text-align:left;padding:12px;border:1px solid #a9b29d;background:#eeeee9e8;transform:translate(-50%,-50%);font-size:12px;line-height:1.25}.flow-node>span{font:9px var(--mono);color:#858d7b}.flow-node[aria-pressed=true]{background:var(--blue);color:#fff;border-color:var(--blue)}.flow-node[aria-pressed=true]>span{color:#c1c8ff}.flow-node[data-type=review]:not([aria-pressed=true]){border-style:dashed}.node-detail{padding:16px 18px;background:#e7eadf;border-top:1px solid #c4cbb9;font-size:13px;line-height:1.65;min-height:84px}.node-detail strong{font-weight:400;display:block;margin-bottom:5px}.node-detail p{color:#68705f;margin:0}.assumptions,.constraints{margin-top:26px;border-top:1px solid var(--line);padding-top:16px}.assumptions h2,.constraints h2{font-size:15px;font-weight:400;margin:0 0 12px}.assumptions ul,.constraints ul{padding-left:17px;margin:0;font-size:13px;line-height:1.6;color:#68705f}.assumptions li,.constraints li{margin:8px 0}.plan-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:25px;padding-top:20px}.plan-footer button{font-size:12px;border-bottom:1px solid currentColor;padding-bottom:4px}.panel-title{font-size:34px;line-height:1.1;letter-spacing:-.04em;font-weight:400;margin:20px 0}.panel-lead{font-size:15px;line-height:1.6;max-width:570px;color:#68705f}.experiment-switch{display:flex;gap:20px;margin:25px 0;border-bottom:1px solid var(--line)}.experiment-switch button{font-size:13px;padding:10px 0;border-bottom:2px solid transparent;color:var(--muted)}.experiment-switch [aria-pressed=true]{color:var(--ink);border-color:var(--blue)}#panel-experiment textarea,#document-question{width:100%;padding:15px;background:var(--panel);border:1px solid var(--line);resize:vertical;font-size:14px;line-height:1.65}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:45px;padding:13px 18px;background:var(--blue);color:#fff;font-size:14px}.primary:hover{background:#2034ca}#run-experiment{margin-top:20px}.experiment-note{font-size:11px;line-height:1.6;color:var(--muted);max-width:540px}.experiment-result{margin-top:25px}.result-heading{display:flex;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding-bottom:14px;font-size:14px}.result-method{font:10px var(--mono);color:var(--muted)}.result-row{display:grid;grid-template-columns:100px 1fr;gap:15px;padding:16px 0;border-bottom:1px solid var(--line);font-size:14px}.result-row>span{font-size:12px;color:var(--muted)}.result-row small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.result-missing{font-size:13px;line-height:1.6;color:var(--muted);margin-top:18px}.fragment{padding:18px;border-left:2px solid var(--blue);background:#e7eadf;margin:14px 0}.fragment span{font:10px var(--mono);color:var(--blue)}.fragment p{font-size:14px;line-height:1.7;margin:10px 0 0}.case-content{margin-top:28px}.case-content h3{font-size:27px;line-height:1.15;letter-spacing:-.035em;font-weight:400}.case-content>p{font-size:15px;line-height:1.65;color:#68705f}.case-stage-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:28px 0 20px}.case-stage-list button{border:1px solid var(--line);padding:17px;text-align:left;font-size:14px;display:flex;gap:13px;align-items:center}.case-stage-list button span{font:10px var(--mono);color:var(--muted)}.case-stage-list button[aria-pressed=true]{border-color:var(--blue);color:var(--blue);background:#e5e8f7}.case-source{display:inline-block;font-size:13px;border-bottom:1px solid currentColor;margin-top:24px;padding-bottom:4px}.case-detail{background:#e2e6da;padding:20px;font-size:14px;line-height:1.7}.mobile-switch{display:none}dialog{background:var(--paper);color:var(--ink);border:1px solid var(--line);padding:26px;width:min(720px,calc(100% - 32px));max-height:88dvh;overflow:auto}dialog::backdrop{background:#161b15aa;backdrop-filter:blur(3px)}.brief-heading{display:flex;justify-content:space-between;align-items:center}.brief-heading button{font-size:30px;line-height:1}dialog h2{font-size:34px;line-height:1.15;font-weight:400;letter-spacing:-.04em}dialog pre{white-space:pre-wrap;font:13px/1.7 var(--mono);padding:20px;background:#e3e7dc;max-height:45vh;overflow:auto}dialog>p{font-size:12px;color:var(--muted)}.brief-actions{display:flex;align-items:center;gap:25px;font-size:14px}.notice{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);max-width:90%;padding:12px 20px;background:var(--ink);color:var(--paper);font-size:13px;z-index:30}
@media(min-width:1600px){.conversation{padding:0 38px}.panel{padding:35px 42px}.workspace-heading{padding:17px 42px}.workspace-tabs{padding:0 42px}.flow-node{font-size:14px}.diagram{max-height:340px}}
@media(max-width:1100px){.studio{grid-template-columns:minmax(315px,.9fr) minmax(0,1.4fr)}.conversation{padding:0 18px}.panel{padding:24px 20px}.workspace-heading{padding:17px 20px}.workspace-tabs{padding:0 20px;gap:20px}.header-caption{display:none}.settings{gap:9px}.flow-node{font-size:11px;padding:8px}.quiet{font-size:10px}.conversation-heading>.eyebrow{font-size:9px}.plan-footer{flex-wrap:wrap}}
@media(max-width:760px){.app-header{height:65px;padding:0 18px;gap:12px}.brand{font-size:25px}.brand svg{width:27px;height:27px}.header-actions>a{display:none}.mode{font-size:9px;max-width:170px}.mobile-switch{display:flex;border-bottom:1px solid var(--line);height:44px;padding:0 18px;gap:28px}.mobile-switch button{font-size:13px;border-bottom:2px solid transparent}.mobile-switch [aria-selected=true]{border-color:var(--blue)}.mobile-switch span{font:10px var(--mono);margin-left:5px;color:var(--blue)}.studio{display:block;height:calc(100dvh - 109px)}.conversation,.workspace{height:100%}.conversation{border-right:0;padding:0 18px}.studio[data-mobile-panel=chat] .workspace{display:none}.studio[data-mobile-panel=workspace] .conversation{display:none}.welcome h1{font-size:38px}.welcome>p{font-size:15px}.messages{padding-top:16px}.conversation-heading{padding-top:16px}.privacy-note{font-size:9px;margin-bottom:10px}.composer-bottom>span{font-size:9px;max-width:220px}.workspace-heading{min-height:57px;padding:14px 18px}.workspace-heading .eyebrow{font-size:9px}.workspace-tabs{padding:0 18px;gap:22px}.workspace-tabs button{font-size:12px}.panel{padding:24px 18px}.plan-title :is(input,textarea){font-size:27px}.settings{grid-template-columns:1fr 1fr;gap:15px}.settings label:last-child{grid-column:1/-1}.diagram{aspect-ratio:360/390}.flow-node{width:40%;height:20%;font-size:12px;padding:10px}.diagram>svg{display:none}.diagram-heading{font-size:9px}.node-detail{font-size:13px}.plan-footer{gap:18px}.case-stage-list{grid-template-columns:1fr}.panel-title{font-size:32px}.experiment-switch{gap:18px}.experiment-switch button{font-size:12px}.brief-actions{flex-wrap:wrap;gap:18px}dialog{padding:20px}dialog h2{font-size:29px}}
@media(prefers-reduced-motion:reduce){.messages{scroll-behavior:auto}*{transition:none!important}}

.diagram.dynamic{aspect-ratio:auto;max-height:none;min-height:170px;background:linear-gradient(180deg,#e5e8df,#e0e4d9)}
.diagram.dynamic>svg{display:block;pointer-events:none}
.diagram.dynamic .flow-node{width:26%;height:92px;padding:12px;font-size:12px;overflow-wrap:anywhere}
.node-detail input,.node-detail textarea{display:block;width:100%;background:transparent;border:0;border-bottom:1px solid var(--line);padding:6px 0 10px;font-size:13px;line-height:1.6;resize:vertical}
.node-detail .field-label{margin:8px 0 2px;font-size:9px}.node-detail input{font-size:15px}
.case-match{margin-top:26px;padding-top:16px;border-top:1px solid var(--line)}.case-match p{font-size:13px;margin:8px 0;color:#68705f}.case-match small{display:block;font-size:12px;line-height:1.6;color:var(--muted)}
@media(max-width:760px){.diagram.dynamic .flow-node{width:40%;height:92px;padding:10px;font-size:11px}}

.message-text a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.message-text strong{font-weight:600}

/* Same control language as the main site, with stable mobile SVG routing. */
select{min-height:46px;padding:12px 38px 12px 12px;border:1px solid var(--line);background:var(--panel) var(--ui-chevron) no-repeat right 12px center/16px}
.settings{gap:14px}
.settings label{line-height:1.5}
.settings select{margin-top:8px}
.goal-input{padding:13px 14px;background:var(--panel);border:1px solid var(--line);margin-top:2px}
.review-toggle{align-items:center;line-height:1.5;min-height:44px;margin:15px 0 22px}
.review-toggle input{width:18px;height:18px}
.composer textarea{border-radius:0}
#panel-experiment textarea,#document-question{border-radius:0}
.flow-edge{fill:none;stroke:#88927d;stroke-width:1.25;vector-effect:non-scaling-stroke}
.diagram.dynamic .flow-node{background:#f2f3ed}
.diagram.dynamic .flow-node[aria-pressed=true]{background:var(--blue)}
.send{display:inline-flex;align-items:center;justify-content:center;min-width:40px;min-height:40px}
.send .ui-icon{width:22px;height:22px}
.case-source .ui-icon{width:15px;height:15px;margin-left:6px}
.plan-footer button .ui-icon{margin-left:6px}
#export .ui-icon{width:14px;height:14px;margin-left:5px}
@media(max-width:760px){
 .settings{gap:16px}
 .settings label{font-size:10px}
 select,#document-question,.goal-input,#step-label,#step-description,#panel-experiment textarea,.composer textarea{font-size:16px}
 .plan-title :is(input,textarea){font-size:25px}
 .workspace-tabs{gap:20px}
 .review-toggle{font-size:12px}
 .composer{padding:12px}
}

.plan-title{align-items:flex-start}.plan-title textarea{resize:none;overflow:hidden;line-height:1.15}.plan-title .draft-label{margin-top:5px;flex:none}
@media(max-width:760px){.settings{grid-template-columns:1fr;gap:12px}.settings label{display:grid;grid-template-columns:80px minmax(0,1fr);align-items:center;gap:14px}.settings select{margin:0}.settings label:last-child{grid-column:auto}.goal-input{min-height:88px}}

/* A document becomes visible when a task exists or the visitor starts it. */
.plan-empty{max-width:540px;padding:clamp(28px,6vh,70px) 0;}
.empty-mark{display:block;font-size:42px;line-height:1;color:var(--blue);margin-bottom:30px}
.plan-empty h2{font-size:clamp(27px,2.6vw,38px);font-weight:400;letter-spacing:-.035em;line-height:1.15;margin:0 0 20px}
.plan-empty p{font-size:16px;line-height:1.65;color:var(--muted);max-width:440px;margin:0 0 30px}
.plan-empty button{display:inline-flex;align-items:center;gap:24px;font-size:14px;border-bottom:1px solid currentColor;padding:8px 0}
.plan-empty button:hover{color:var(--blue)}
.starter-hint{font-size:11px;line-height:1.5;color:var(--muted);margin:0 0 12px}
.starters button b span{font-size:20px;color:inherit}
.export-button:disabled{visibility:hidden}

/* Authored menus share the same appearance on desktop and mobile. */
.select-trigger{display:block;width:100%;min-height:46px;padding:12px 38px 12px 12px;border:1px solid var(--line);background:var(--panel) var(--ui-chevron) no-repeat right 12px center/16px;text-align:left;font:inherit;color:var(--ink);line-height:1.4;cursor:pointer}
.settings .select-trigger{margin-top:8px;font-size:14px}
.select-trigger:hover:not(:disabled){border-color:var(--ink)}
.select-trigger[aria-expanded=true]{border-color:var(--blue)}
.select-trigger:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
.select-trigger:disabled{opacity:.45;cursor:not-allowed}
.select-popup{position:fixed;z-index:100;overflow-y:auto;overscroll-behavior:contain;padding:5px;border:1px solid var(--line);background:var(--paper);box-shadow:0 12px 32px #24251f1c;color:var(--ink);font:14px/1.4 Alliance,Arial,sans-serif}
.select-popup [role=option]{position:relative;min-height:44px;padding:12px 32px 12px 12px;cursor:pointer}
.select-popup [role=option]:hover,.select-popup .is-active{background:#dce2ff}
.select-popup [aria-selected=true]{color:var(--blue)}
.select-popup [aria-selected=true]::after{content:'✓';position:absolute;right:12px}
@media(max-width:760px){.settings .select-trigger{margin:0;font-size:16px}.select-popup{font-size:16px}}

/* Dialogs and feedback use the same control language as the workspace. */
dialog{box-shadow:0 24px 80px #24251f26;overscroll-behavior:contain}
dialog h2{margin:24px 0 18px}
dialog .brief-heading button{display:grid;place-items:center;width:44px;height:44px;border:1px solid var(--line);font-size:26px}
dialog .brief-heading button:hover{border-color:var(--ink);background:var(--panel)}
.confirm-dialog{width:min(520px,calc(100% - 32px));padding:28px}
.confirm-dialog #reset-description{font-size:16px;line-height:1.65;color:var(--muted);margin:0 0 20px}
.confirm-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.confirm-actions button,.brief-actions :is(button,a){min-height:46px;padding:12px 16px;font-size:14px;line-height:1.4}
.secondary{border:1px solid var(--line);background:transparent}
.secondary:hover{border-color:var(--ink);background:var(--panel)}
.primary:hover:not(:disabled){background:#2035cc}
.primary:active:not(:disabled),.send:active:not(:disabled){transform:translateY(1px)}
.text-action{font-size:14px;padding:8px 0;border-bottom:1px solid currentColor}
.text-action:hover{color:var(--blue)}
.brief-actions a{border:1px solid var(--line)}
.brief-actions a:hover{border-color:var(--ink)}
.notice{display:flex;align-items:center;gap:20px;max-width:min(560px,calc(100% - 32px));width:max-content;padding:12px 12px 12px 18px;line-height:1.5;box-shadow:0 8px 30px #24251f26;z-index:110}
.notice button{display:grid;place-items:center;width:36px;height:36px;flex:none;border:1px solid #ffffff50;font-size:23px;color:inherit}
.notice button:hover{background:#ffffff18}
body:has(dialog[open])>.notice{display:none}
.run-status:not(:empty){border-left:2px solid var(--blue);background:#dce2ff60;padding:9px 12px;margin:8px 0;line-height:1.5}
.review-toggle input:disabled{opacity:.45;cursor:not-allowed}
@media(max-width:760px){.confirm-dialog{padding:20px}.confirm-actions{flex-direction:column}.confirm-actions button{width:100%}.notice{bottom:12px;font-size:13px}.brief-actions{align-items:stretch}.brief-actions :is(button,a){text-align:center;flex:1}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important}.primary:active:not(:disabled),.send:active:not(:disabled){transform:none}}