.dialogue-echanges{width:min(820px,calc(100vw - 32px));max-height:88dvh;padding:0;border-radius:16px;overflow:hidden}
.dialogue-echanges[open]{display:grid;grid-template-rows:auto auto minmax(110px,1fr) auto;height:min(800px,88dvh)}
.echange-entete{display:flex;align-items:start;justify-content:space-between;gap:20px;padding:24px 26px 18px;background:var(--surface);border-bottom:1px solid var(--line)}
.echange-entete h2{font-size:23px;line-height:1.3;margin:9px 0 0;max-width:640px;overflow-wrap:anywhere}
.echange-entete .eyebrow{font-size:11px;color:var(--muted)}
.echange-entete .icon-button{min-width:44px;height:44px}
.echange-onglets{display:flex;align-items:center;gap:9px;padding:7px 24px;border-bottom:1px solid var(--line);background:var(--surface)}
.echange-onglets>button{border-bottom:2px solid transparent;padding:9px 7px;min-height:44px;font-size:13px;color:var(--muted)}
.echange-onglets>button[aria-pressed=true]{color:var(--ink);border-color:var(--accent);font-weight:600}
.echange-onglets button span{font-size:11px;padding:2px 6px;margin-left:5px;background:var(--soft);border-radius:5px}
.echange-demo{font-size:11px;color:var(--muted);margin-left:auto;text-align:right}
.echange-liste{overflow-y:auto;overflow-x:hidden;padding:10px 26px 20px;overscroll-behavior:contain}
.echange-message{display:flex;gap:12px;padding:21px 0;border-bottom:1px solid var(--line)}
.echange-message:last-child{border-bottom:0}.echange-message>.avatar{width:34px;height:34px;font-size:12px;flex-shrink:0}
.echange-message-corps{flex:1;min-width:0}.echange-auteur{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.echange-auteur strong{font-size:13px}.echange-auteur .badge{font-size:10px}.echange-auteur time{margin-left:auto;font-size:11px;color:var(--muted)}
.echange-message p{font-size:14px;line-height:1.8;margin:11px 0 6px;overflow-wrap:anywhere;white-space:normal}.echange-message blockquote{margin:12px 0 0;border-left:3px solid var(--border);padding:8px 12px;background:var(--soft);font-size:12px;color:var(--muted);overflow-wrap:anywhere}
.echange-repondre{min-height:44px;padding:6px 0;font-size:12px;color:var(--accent)}
.echange-redacteur{padding:15px 26px 20px;border-top:1px solid var(--line);background:var(--surface)}.echange-redacteur>label{margin:0 0 8px;font-size:12px}.echange-redacteur textarea{resize:vertical;min-height:64px;max-height:140px;font-size:14px;line-height:1.6}
.echange-redacteur-actions{display:flex;align-items:end;gap:14px;margin-top:10px}.echange-redacteur-actions>div{flex-shrink:0}.echange-redacteur-actions label{font-size:11px;margin:0 0 5px}.echange-redacteur-actions select{font-size:12px;min-height:44px;padding:8px 10px;max-width:140px}.echange-redacteur-actions>span{font-size:11px;line-height:1.5;color:var(--muted);max-width:220px;padding-bottom:3px}.echange-redacteur-actions>.primary{margin-left:auto;min-height:44px;font-size:12px}
.echange-reponse{background:var(--soft);padding:8px 11px;font-size:12px;display:flex;justify-content:space-between;align-items:center;border-radius:6px;margin-bottom:10px}.echange-reponse[hidden]{display:none}.echange-reponse button{color:var(--accent);min-height:32px;text-decoration:underline}.acces-echanges{display:inline-flex;align-items:center;gap:9px;min-height:44px;font-size:12px}.acces-echanges svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.acces-echanges>span{background:var(--soft);border-radius:99px;font-size:11px;padding:2px 7px}.discussion-projet{display:flex;justify-content:flex-end;margin:-12px 0 18px}.echange-apercu{border-top:1px solid var(--line);margin-top:30px;padding-top:24px}.echange-apercu h3{font-size:14px}.echange-apercu p{font-size:12px;color:var(--muted)}
@media(max-width:740px){.dialogue-echanges{width:calc(100vw - 20px);max-height:94dvh}.dialogue-echanges[open]{height:94dvh}.echange-entete{padding:18px}.echange-entete h2{font-size:19px}.echange-onglets{padding-inline:14px;gap:6px}.echange-demo{display:none}.echange-liste{padding:5px 17px 15px}.echange-redacteur{padding:12px 17px 15px}.echange-redacteur-actions{flex-wrap:wrap;gap:9px}.echange-redacteur-actions>span{display:none}.echange-redacteur-actions>.primary{flex:1}.echange-auteur time{margin-left:0;width:100%}.echange-message{gap:9px}.echange-message p{font-size:13px}.discussion-projet{justify-content:flex-start;margin-top:0}}
.echange-message.message-decision{border-left:3px solid var(--accent);padding-left:14px}.echange-message.message-capitalise .echange-message-corps{border-radius:8px}.echange-actions-message{display:flex;gap:7px 16px;flex-wrap:wrap;margin-top:9px}.echange-actions-message button{font-size:12px;color:var(--accent);min-height:44px;padding:5px 0}.echange-actions-message button[aria-pressed=true]{font-weight:650}.echange-auteur .badge-decision,.echange-auteur .badge-capitalisation{font-weight:650}.pieces-message{margin-top:12px}.echange-redacteur .liste-pieces{max-height:140px}.echange-redacteur.depot-actif{outline:2px dashed var(--focus);outline-offset:-5px;background:var(--soft)}.echange-redacteur-actions>span{max-width:240px}.echange-onglets{flex-wrap:wrap}.echange-onglets>button{min-height:44px}.echange-redacteur-actions>button.secondary{min-height:44px}
@media(max-width:740px){.echange-onglets{gap:4px}.echange-onglets>button{font-size:12px;padding-inline:6px}.echange-actions-message{gap:5px 12px}.echange-actions-message button{font-size:11px}.header-brand .elan-compact-mark{display:block!important}}