:root {
  --chat-bg: var(--bg, #0b0d16);
  --chat-panel: var(--panel, #121522);
  --chat-border: var(--border, var(--line, rgba(255, 255, 255, 0.12)));
  --chat-text: var(--text, #f7f7fb);
  --chat-muted: var(--muted, #a8aec3);
  --chat-pink: var(--pink, #ffacd7);
  --chat-violet: var(--violet, #acacff);
  --chat-cyan: var(--cyan, #9de7ff);
  --chat-radius: var(--radius, 18px);
}
.member-chat { position:fixed; right:16px; bottom:16px; z-index:900; color:var(--chat-text); font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif }
.member-chat[hidden],.chat-panel[hidden],.chat-popover[hidden]{display:none!important}
.chat-toggle{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 15px;border:1px solid color-mix(in srgb,var(--chat-cyan) 48%,transparent);border-radius:999px;color:var(--chat-text);background:color-mix(in srgb,var(--chat-panel) 92%,var(--chat-cyan) 8%);box-shadow:0 14px 36px rgba(0,0,0,.32);font:inherit;font-size:14px;line-height:1.65;font-weight:800;cursor:pointer}
.chat-toggle.has-unread{border-color:color-mix(in srgb,var(--chat-pink) 62%,transparent);box-shadow:0 0 0 3px rgba(255,172,215,.09),0 14px 36px rgba(0,0,0,.32)}
.chat-unread{position:absolute;top:-7px;right:-7px;display:grid;place-items:center;min-width:22px;height:22px;padding:0 6px;border:2px solid var(--chat-bg);border-radius:999px;color:#0b0d16;background:linear-gradient(135deg,var(--chat-pink),var(--chat-violet));font-size:.7rem;font-weight:950;line-height:1}
.chat-unread[hidden]{display:none!important}
.chat-panel{position:absolute;right:0;bottom:calc(100% + 10px);display:grid;grid-template-rows:auto auto auto minmax(180px,1fr) auto;width:min(400px,calc(100vw - 24px));height:min(640px,calc(100vh - 120px));overflow:hidden;border:1px solid var(--chat-border);border-radius:var(--chat-radius);background:color-mix(in srgb,var(--chat-panel) 97%,#000 3%);box-shadow:0 24px 70px rgba(0,0,0,.48)}
.chat-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--chat-border)}
.chat-header>div{display:grid;gap:2px}.chat-header small,.chat-form small{color:var(--chat-muted);line-height:1.4}
.chat-icon-button,.chat-emoji-toggle,.chat-small-button,.chat-color-choice,.chat-emojis button{font:inherit;cursor:pointer}
.chat-icon-button{width:44px;height:44px;border:0;border-radius:50%;color:var(--chat-text);background:transparent;font-size:1.5rem}.chat-icon-button:hover{background:rgba(255,255,255,.07)}
.chat-presence{padding:9px 16px;overflow:hidden;border-bottom:1px solid var(--chat-border);color:var(--chat-muted);font-size:.8rem;line-height:1.4;text-overflow:ellipsis;white-space:nowrap}
.chat-privacy{margin:0;padding:9px 16px;border-bottom:1px solid var(--chat-border);color:var(--chat-muted);background:rgba(255,255,255,.018);font-size:.72rem;line-height:1.42}
.chat-messages{display:grid;align-content:start;gap:10px;overflow-y:auto;padding:14px;overscroll-behavior:contain;scrollbar-gutter:stable}
.chat-message{min-width:0;padding:10px 12px;border:1px solid var(--chat-border);border-radius:12px;background:rgba(255,255,255,.025)}
.chat-message header{display:flex;justify-content:space-between;gap:10px;font-size:.82rem}.chat-message time{color:var(--chat-muted);font-variant-numeric:tabular-nums}.chat-message p{margin:5px 0 0;line-height:1.45;overflow-wrap:anywhere;white-space:pre-wrap}
.chat-author-violet{color:#c4b5fd}.chat-author-pink{color:#ffacd7}.chat-author-cyan{color:#9de7ff}.chat-author-green{color:#9df3c7}.chat-author-amber{color:#ffd38a}.chat-author-coral{color:#ffad9f}
.chat-author{border:0;padding:0;background:none;font:inherit;font-weight:800;cursor:pointer;text-align:left}
.chat-author:hover{text-decoration:underline}
.chat-member-profile{position:absolute;z-index:5;top:58px;right:12px;display:grid;justify-items:center;gap:8px;width:min(290px,calc(100% - 24px));padding:18px;border:1px solid var(--chat-border);border-radius:16px;background:#1b1e30;box-shadow:0 18px 48px rgba(0,0,0,.5);text-align:center}
.chat-member-profile[hidden]{display:none!important}
.chat-member-profile small{color:var(--chat-muted)}
.chat-profile-close{justify-self:end;border:0;color:var(--chat-muted);background:transparent;font:inherit;cursor:pointer}
.chat-profile-avatar{display:grid;place-items:center;width:84px;height:84px;overflow:hidden;border-radius:50%;color:#171a2b;background:linear-gradient(135deg,#ffacd7,#aaa7ff);font-size:2rem;font-weight:900}
.chat-profile-avatar img{width:100%;height:100%;object-fit:cover}
.chat-form{display:grid;gap:7px;padding:12px 14px 14px;border-top:1px solid var(--chat-border)}
.chat-form>.chat-form-heading{display:flex;align-items:center;justify-content:space-between;gap:8px}.chat-form label{font-size:.82rem;font-weight:800}
.chat-color-wrap,.chat-emoji-wrap{position:relative}.chat-small-button{min-height:32px;padding:5px 9px;border:1px solid var(--chat-border);border-radius:9px;color:var(--chat-muted);background:rgba(255,255,255,.04);font-size:.72rem;font-weight:750}
.chat-form>.chat-compose{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:stretch;gap:8px}
.chat-form textarea{width:100%;min-height:48px;max-height:120px;resize:vertical;border:1px solid var(--chat-border);border-radius:12px;padding:10px;color:var(--chat-text);background:rgba(0,0,0,.18);font:inherit}
.chat-emoji-toggle{width:44px;height:48px;border:1px solid var(--chat-border);border-radius:12px;color:var(--chat-text);background:rgba(255,255,255,.04);font-size:1.25rem}
.chat-send{min-height:48px;padding:9px 13px;border:1px solid transparent;border-radius:12px;color:#0b0d16;background:linear-gradient(135deg,var(--chat-pink),var(--chat-violet));font:inherit;font-weight:850;cursor:pointer}.chat-send:disabled{cursor:wait;opacity:.65}
.chat-popover{position:absolute;z-index:3;padding:8px;border:1px solid var(--chat-border);border-radius:12px;background:#171a2b;box-shadow:0 14px 34px rgba(0,0,0,.4)}
.chat-emojis{left:0;bottom:calc(100% + 7px);display:grid;grid-template-columns:repeat(4,38px);gap:4px}.chat-emojis button{display:grid;place-items:center;width:38px;height:38px;border:0;border-radius:8px;background:transparent;font-size:1.2rem}.chat-emojis button:hover{background:rgba(255,255,255,.09)}
.chat-colors{right:0;bottom:calc(100% + 7px);display:flex;gap:7px}.chat-color-choice{width:32px;height:32px;border:2px solid transparent;border-radius:50%;background:var(--choice-color)}.chat-color-choice[aria-pressed="true"]{border-color:#fff;box-shadow:0 0 0 2px #171a2b,0 0 0 4px var(--choice-color)}
.chat-form small.error{color:#ff9aab}
.member-chat :is(button,textarea):focus-visible{outline:3px solid var(--chat-cyan);outline-offset:2px}
@media(max-width:520px){.member-chat{right:10px;bottom:10px}.chat-panel{position:fixed;inset:70px 8px 8px;width:auto;height:auto}.chat-toggle{width:48px;padding-inline:0}.chat-form>.chat-compose{grid-template-columns:44px minmax(0,1fr)}.chat-send{grid-column:2}.chat-form textarea{min-height:52px}.chat-small-button{font-size:.68rem}}
@media(prefers-reduced-motion:reduce){.member-chat *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Lanceur commun : icône seule, notification conservée. */
.chat-toggle{width:48px;height:48px;min-width:48px;min-height:48px;padding:0;gap:0;border-radius:8px;box-shadow:none}