:root{font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#253831;background:#f6f5ee;font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex}aside{width:88px;border-right:1px solid #dadcd0;display:flex;align-items:center;flex-direction:column;padding:30px 12px;position:fixed;inset:0 auto 0 0}.brand{color:inherit;text-decoration:none;font-family:Georgia,serif;font-size:40px}.brand span{color:#ad623e}.vertical{writing-mode:vertical-rl;font-size:10px;letter-spacing:3px;margin:auto}.version{font-size:10px;color:#636e61}main{margin-left:88px;width:calc(100% - 88px);max-width:1400px;padding:35px 7vw}header{display:flex;justify-content:space-between;gap:20px;font-size:11px;letter-spacing:1.7px}.wordmark{font-weight:700}.wordmark span{font-weight:400;color:#667464;margin-left:12px}#status{letter-spacing:.3px;color:#667464}.intro{padding:80px 0 40px}.eyebrow{font-size:10px;letter-spacing:2px;color:#617457}h1{font:400 clamp(36px,4.5vw,66px)/1.08 Georgia,serif;letter-spacing:-1.7px;margin:24px 0}p{line-height:1.6}.intro>p:last-child,.panel>p{font-size:14px;color:#657062}.panel{border:1px solid #d6dacc;background:#efefe5;padding:26px 30px;max-width:720px}h2{font:400 24px Georgia,serif;margin:0}label{display:block;font-size:12px;margin:18px 0 8px}.row{display:flex;gap:12px}input,textarea{width:100%;border:1px solid #bcc6b4;background:#fffefa;color:#253831;font:inherit;padding:13px;border-radius:3px}textarea{resize:vertical}button{border:1px solid #294636;background:#294636;color:#fffdf2;padding:12px 20px;font:inherit;font-size:13px;border-radius:3px;cursor:pointer;white-space:nowrap}button.secondary{background:transparent;color:#294636;border-color:#bec8b8;padding:10px 14px}button:disabled{opacity:.5;cursor:default}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #a7764f;outline-offset:3px}.toolbar,.compose-footer{display:flex;align-items:center;justify-content:space-between;gap:16px}.toolbar p,.compose-footer>span{font-size:12px;color:#657062}.compose-footer{margin-top:12px}#conversation{max-width:850px}#messages{max-height:42vh;overflow-y:auto;margin:20px 0}.message{border-left:2px solid #b9c3ad;padding:8px 20px;margin:16px 0;white-space:pre-wrap;line-height:1.65;font-size:15px}.message strong{display:block;font-size:10px;letter-spacing:1px;color:#687761;margin-bottom:4px}.message.assistant{border-left-color:#a9764c}#error{color:#9d3d2a;font-size:13px;min-height:20px}footer{display:flex;align-items:center;gap:8px;border-top:1px solid #dadcd0;padding-top:20px;margin-top:44px;font-size:9px;letter-spacing:1.1px;color:#697563}footer>span:last-child{margin-left:auto}.dot{width:6px;height:6px;border-radius:100%;background:#5c7750}@media(max-width:680px){aside{width:52px}.brand{font-size:30px}.vertical{display:none}.version{margin-top:auto}main{margin-left:52px;width:calc(100% - 52px);padding:25px 6vw}header,.toolbar,.compose-footer{align-items:flex-start;flex-direction:column}.intro{padding-top:45px}.row{flex-direction:column}.panel{padding:20px}footer>span:last-child{display:none}}
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/* Attente de la première réponse : discret, accessible, sans mouvement imposé. */
.thinking{display:inline-flex;align-items:center;gap:9px;color:#687761;font-size:13px}
.thinking::before{content:"";display:inline-block;width:13px;height:13px;flex:none;border:2px solid #d5dbcf;border-top-color:#54704a;border-radius:50%;animation:thinking-spin .85s linear infinite}
@keyframes thinking-spin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.thinking::before{animation:none}}

.chat-sources{font-size:12px;white-space:normal;margin-top:14px;color:#5e7156}.chat-sources summary{cursor:pointer}.chat-sources>div{border-top:1px solid #d5dbcf;margin-top:10px;padding-top:8px}.chat-sources p{white-space:pre-wrap;margin:4px 0;overflow-wrap:anywhere}.chat-sources a{color:#294636}