:root{
    --sn-green:#0d6b43;--sn-green-2:#13945d;--sn-bg:#f2f5f4;--sn-panel:#fff;--sn-text:#17211d;--sn-muted:#6d7b74;
    --sn-line:#dfe7e2;--sn-particulier:#18a957;--sn-pro:#2878e4;--sn-mairie:#e88918;--sn-admin:#d14343;
    --sn-dark:#111827;--sn-dark-2:#182132;--sn-dark-3:#222d40;--sn-shadow:0 15px 50px rgba(23,33,29,.12)
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--sn-text);background:var(--sn-bg)}button,input,textarea,select{font:inherit}button,a{touch-action:manipulation}.sn-body{min-height:100vh}.sn-app,.sn-admin-app{min-height:100vh}.sn-topbar,.sn-admin-topbar{height:72px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--sn-line);position:sticky;top:0;z-index:20}.sn-topbar{border-top:4px solid var(--sn-green)}.sn-topbar.sn-role-particulier{border-top-color:var(--sn-particulier)}.sn-topbar.sn-role-pro{border-top-color:var(--sn-pro)}.sn-topbar.sn-role-mairie{border-top-color:var(--sn-mairie)}.sn-topbar strong{display:block;font-size:20px}.sn-kicker{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:var(--sn-green)}.sn-user-mini{display:flex;align-items:center;gap:10px;font-size:14px}.sn-user-mini a,.sn-admin-account a{color:inherit;text-decoration:none;font-weight:700}.sn-role-dot{width:10px;height:10px;border-radius:50%;background:var(--sn-green)}.sn-role-particulier .sn-role-dot{background:var(--sn-particulier)}.sn-role-pro .sn-role-dot{background:var(--sn-pro)}.sn-role-mairie .sn-role-dot{background:var(--sn-mairie)}
.sn-messenger{height:calc(100vh - 72px);display:grid;grid-template-columns:360px minmax(0,1fr);max-width:1500px;margin:0 auto;background:#fff;border-left:1px solid var(--sn-line);border-right:1px solid var(--sn-line)}.sn-sidebar{border-right:1px solid var(--sn-line);min-width:0;background:#fbfcfb}.sn-sidebar-head{padding:22px;display:flex;gap:16px;justify-content:space-between;align-items:flex-start;border-bottom:1px solid var(--sn-line)}.sn-sidebar h1{font-size:21px;margin:0 0 4px}.sn-sidebar p{font-size:13px;color:var(--sn-muted);margin:0}.sn-icon-button{width:42px;height:42px;border:0;border-radius:13px;background:var(--sn-green);color:#fff;font-size:25px;cursor:pointer}.sn-conversation-list,.sn-admin-list{overflow:auto;height:calc(100% - 89px)}.sn-conversation-item{width:100%;border:0;border-bottom:1px solid var(--sn-line);background:transparent;text-align:left;padding:16px;display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:12px;cursor:pointer}.sn-conversation-item:hover,.sn-conversation-item.active{background:#edf6f1}.sn-avatar,.sn-contact-avatar{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;color:#fff;font-weight:900;background:var(--sn-green);text-transform:uppercase}.sn-avatar.particulier,.sn-contact-avatar.particulier{background:var(--sn-particulier)}.sn-avatar.pro,.sn-contact-avatar.pro{background:var(--sn-pro)}.sn-avatar.mairie,.sn-contact-avatar.mairie{background:var(--sn-mairie)}.sn-conversation-main{min-width:0}.sn-conversation-line{display:flex;justify-content:space-between;gap:10px;align-items:center}.sn-conversation-line strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sn-conversation-line time{font-size:11px;color:var(--sn-muted);white-space:nowrap}.sn-conversation-subject{font-size:13px;font-weight:700;margin:3px 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sn-conversation-preview{font-size:12px;color:var(--sn-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sn-unread{min-width:22px;height:22px;padding:0 6px;border-radius:11px;background:var(--sn-green);color:#fff;font-size:11px;font-weight:800;display:grid;place-items:center}.sn-priority{font-size:10px;font-weight:900;text-transform:uppercase}.sn-priority.urgent{color:#c72e2e}.sn-priority.high{color:#d37800}
.sn-chat-panel,.sn-admin-chat{min-width:0;position:relative;background:#eef3f0}.sn-empty-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;color:var(--sn-muted)}.sn-empty-state h2{margin:12px 0 6px;color:var(--sn-text)}.sn-empty-state p{max-width:430px}.sn-empty-state button{border:0;background:var(--sn-green);color:#fff;padding:12px 18px;border-radius:12px;font-weight:800;cursor:pointer}.sn-empty-icon{font-size:48px}.sn-chat-view{height:100%;display:grid;grid-template-rows:auto minmax(0,1fr) auto auto}.sn-chat-header,.sn-admin-chat-header{min-height:74px;background:#fff;border-bottom:1px solid var(--sn-line);display:flex;align-items:center;padding:12px 20px;gap:12px}.sn-chat-header h2,.sn-admin-chat-header h2{margin:0;font-size:18px}.sn-chat-header p,.sn-admin-chat-header p{margin:3px 0 0;color:var(--sn-muted);font-size:12px}.sn-back-button{display:none;border:0;background:transparent;font-size:34px;line-height:1;cursor:pointer}.sn-messages{overflow:auto;padding:24px;display:flex;flex-direction:column;gap:10px;background-image:radial-gradient(circle at 1px 1px,rgba(13,107,67,.08) 1px,transparent 0);background-size:24px 24px}.sn-message-row{display:flex}.sn-message-row.mine{justify-content:flex-end}.sn-message{max-width:min(74%,720px);padding:11px 14px;border-radius:17px 17px 17px 4px;background:#fff;box-shadow:0 3px 14px rgba(20,30,25,.07)}.sn-message-row.mine .sn-message{background:#dff6e9;border-radius:17px 17px 4px 17px}.sn-message-head{display:flex;justify-content:space-between;gap:18px;font-size:11px;margin-bottom:5px}.sn-message-head strong{color:var(--sn-green)}.sn-message-body{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.45;font-size:14px}.sn-message-time{color:var(--sn-muted);white-space:nowrap}.sn-message-image{display:block;max-width:100%;max-height:420px;border-radius:12px;margin-top:8px}.sn-file-card{margin-top:8px;padding:10px 12px;border:1px solid rgba(0,0,0,.1);border-radius:10px;display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-size:13px}.sn-composer{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:10px;align-items:end;padding:14px;background:#fff;border-top:1px solid var(--sn-line)}.sn-composer textarea{resize:none;max-height:140px;border:1px solid var(--sn-line);border-radius:16px;padding:11px 14px;outline:none}.sn-composer textarea:focus{border-color:var(--sn-green)}.sn-composer button,.sn-dialog button,.sn-login-form button{border:0;border-radius:12px;background:var(--sn-green);color:#fff;padding:11px 18px;font-weight:800;cursor:pointer}.sn-attach-button{height:42px;width:42px;border-radius:12px;display:grid;place-items:center;background:#edf2ef;cursor:pointer}.sn-file-preview{background:#fff;padding:0 16px 12px;color:var(--sn-muted);font-size:12px}
.sn-dialog{width:min(650px,calc(100% - 30px));border:0;padding:0;border-radius:20px;box-shadow:var(--sn-shadow)}.sn-dialog::backdrop{background:rgba(0,0,0,.52)}.sn-dialog form{padding:24px;display:grid;gap:16px}.sn-dialog-head{display:flex;justify-content:space-between;align-items:flex-start}.sn-dialog h2{margin:4px 0 0}.sn-close{background:transparent!important;color:var(--sn-text)!important;font-size:28px;padding:0!important}.sn-dialog label,.sn-login-form label{display:grid;gap:7px;font-size:13px;font-weight:700}.sn-dialog input,.sn-dialog textarea,.sn-dialog select,.sn-login-form input{width:100%;border:1px solid var(--sn-line);border-radius:11px;padding:11px;background:#fff;outline:none}.sn-ref-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.sn-dialog-actions{display:flex;justify-content:flex-end;gap:10px}.sn-secondary{background:#e8ecea!important;color:var(--sn-text)!important}
.sn-auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(140deg,#e8f6ee,#f7fbf9 55%,#e2f0ea)}.sn-auth-card{width:min(470px,100%);background:#fff;padding:34px;border-radius:24px;box-shadow:var(--sn-shadow);text-align:center}.sn-auth-card h1{margin:8px 0 10px}.sn-auth-card p{color:var(--sn-muted);line-height:1.5}.sn-brand-mark{width:62px;height:62px;border-radius:19px;margin:0 auto 16px;background:var(--sn-green);color:#fff;display:grid;place-items:center;font-weight:950;font-size:22px}.sn-auth-actions{display:grid;gap:9px;margin:22px 0}.sn-auth-actions a,.sn-auth-card>a{display:block;text-decoration:none;padding:12px;border-radius:11px;background:#edf6f1;color:var(--sn-green);font-weight:800}.sn-admin-link{background:transparent!important;color:var(--sn-muted)!important;font-size:13px}.sn-login-form{display:grid;gap:15px;text-align:left;margin-top:22px}.sn-alert-error{background:#fff0f0;color:#a62929;padding:11px;border-radius:10px;font-size:13px}
.sn-admin-body{background:var(--sn-dark)}.sn-admin-topbar{background:#0c1220;color:#fff;border-color:#253147}.sn-admin-brand,.sn-admin-account{display:flex;align-items:center;gap:11px}.sn-admin-brand>span{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--sn-green-2);font-weight:950}.sn-admin-brand strong,.sn-admin-brand small{display:block}.sn-admin-brand small{color:#91a0b8;font-size:11px;margin-top:2px}.sn-admin-account{font-size:13px}.sn-admin-account a{color:#a9b4c6}.sn-admin-messenger{height:calc(100vh - 72px);display:grid;grid-template-columns:390px minmax(0,1fr);background:var(--sn-dark-2)}.sn-admin-sidebar{background:#111827;border-right:1px solid #28354b;min-width:0;display:grid;grid-template-rows:auto auto minmax(0,1fr)}.sn-admin-search-wrap{padding:14px}.sn-admin-search-wrap input{width:100%;background:#202b3d;border:1px solid #2d3b52;color:#fff;padding:11px 13px;border-radius:12px;outline:none}.sn-source-tabs{display:grid;grid-template-columns:repeat(4,1fr);padding:0 12px 12px;gap:6px}.sn-source-tabs button{border:0;border-radius:10px;padding:9px 5px;background:#1b2638;color:#aeb9ca;font-size:11px;cursor:pointer}.sn-source-tabs button.active{background:var(--sn-green);color:#fff}.sn-source-tabs span{font-weight:900}.sn-source-color{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:4px}.sn-source-color.particulier{background:var(--sn-particulier)}.sn-source-color.pro{background:var(--sn-pro)}.sn-source-color.mairie{background:var(--sn-mairie)}.sn-admin-list{height:auto}.sn-admin-list .sn-conversation-item{border-color:#28354b;color:#fff}.sn-admin-list .sn-conversation-item:hover,.sn-admin-list .sn-conversation-item.active{background:#213047}.sn-admin-list .sn-conversation-preview,.sn-admin-list time{color:#91a0b8}.sn-admin-chat{background:#e9efec}.sn-dark-empty{color:#7e8da4}.sn-admin-chat-header{justify-content:space-between}.sn-admin-contact{display:flex;align-items:center;gap:12px;min-width:0}.sn-admin-controls{display:flex;gap:8px}.sn-admin-controls select{border:1px solid var(--sn-line);border-radius:10px;padding:9px;background:#fff}.sn-contact-strip{padding:8px 20px;background:#f8faf9;border-bottom:1px solid var(--sn-line);font-size:12px;display:flex;gap:18px;flex-wrap:wrap}.sn-contact-strip a{color:var(--sn-green);font-weight:800;text-decoration:none}.sn-admin-chat .sn-chat-view{grid-template-rows:auto auto minmax(0,1fr) auto auto auto}.sn-quick-replies{display:flex;gap:7px;padding:8px 14px;overflow:auto;background:#f9fbfa;border-top:1px solid var(--sn-line)}.sn-quick-replies button{border:1px solid var(--sn-line);border-radius:999px;background:#fff;padding:7px 11px;white-space:nowrap;font-size:11px;cursor:pointer}.sn-admin-login{background:linear-gradient(145deg,#111827,#1c293e)}.sn-admin-login .sn-auth-card{background:#151f30;color:#fff}.sn-admin-login .sn-auth-card p{color:#9eabc0}.sn-admin-login .sn-login-form input{background:#202c40;border-color:#33435c;color:#fff}
.sn-toast{position:fixed;right:20px;bottom:20px;z-index:100;background:#17211d;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:var(--sn-shadow);max-width:360px}.sn-toast.error{background:#a72f2f}
@media(max-width:800px){.sn-topbar,.sn-admin-topbar{height:64px;padding:0 14px}.sn-user-mini>span:not(.sn-role-dot),.sn-admin-account>span{display:none}.sn-messenger,.sn-admin-messenger{height:calc(100vh - 64px);display:block;position:relative}.sn-sidebar,.sn-admin-sidebar{height:100%;border:0}.sn-chat-panel,.sn-admin-chat{position:absolute;inset:0;transform:translateX(100%);transition:transform .2s ease;z-index:5}.sn-messenger.chat-open .sn-chat-panel,.sn-admin-messenger.chat-open .sn-admin-chat{transform:translateX(0)}.sn-back-button{display:block}.sn-admin-chat-header{padding:8px 10px}.sn-admin-controls{gap:4px}.sn-admin-controls select{max-width:120px;font-size:11px;padding:7px 4px}.sn-message{max-width:88%}.sn-messages{padding:14px}.sn-composer{padding:10px;grid-template-columns:40px minmax(0,1fr) auto}.sn-composer button{padding:10px 12px}.sn-ref-grid{grid-template-columns:1fr}.sn-source-tabs{grid-template-columns:repeat(4,minmax(0,1fr))}.sn-admin-search-wrap{padding:10px 12px}.sn-admin-list,.sn-conversation-list{height:calc(100% - 86px)}.sn-auth-card{padding:26px 20px;border-radius:18px}.sn-contact-strip{padding:7px 12px}.sn-admin-contact .sn-contact-avatar{width:40px;height:40px;border-radius:12px}.sn-admin-chat-header h2{font-size:15px}.sn-admin-chat-header p{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}

/* Correctif V1.1 : l'attribut hidden doit toujours masquer les panneaux. */
[hidden]{display:none!important}

/* Empêche le double défilement observé dans l'administration. */
body.sn-body:not(.sn-auth-page){height:100vh;height:100dvh;overflow:hidden}
body.sn-body:not(.sn-auth-page) .sn-app,
body.sn-body:not(.sn-auth-page) .sn-admin-app{height:100%;min-height:0;overflow:hidden}
.sn-messenger,.sn-admin-messenger{height:calc(100vh - 72px);height:calc(100dvh - 72px);min-height:0;overflow:hidden}
.sn-sidebar,.sn-admin-sidebar,.sn-chat-panel,.sn-admin-chat{min-height:0;overflow:hidden}
.sn-chat-panel>.sn-empty-state,.sn-chat-panel>.sn-chat-view,
.sn-admin-chat>.sn-empty-state,.sn-admin-chat>.sn-chat-view{position:absolute;inset:0;width:100%;height:100%;min-height:0}
.sn-chat-view,.sn-messages{min-height:0}
.sn-admin-security-link{white-space:nowrap}
.sn-security-page{min-height:100vh;padding:28px;background:linear-gradient(145deg,#111827,#1c293e);color:#fff;overflow:auto}
.sn-security-card{width:min(920px,100%);margin:0 auto;background:#151f30;border:1px solid #2b3a52;padding:28px;box-shadow:var(--sn-shadow)}
.sn-security-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:24px}
.sn-security-head h1{margin:0 0 7px}.sn-security-head p{margin:0;color:#a6b2c5;line-height:1.5}
.sn-security-back{color:#d5deeb;text-decoration:none;font-weight:800}
.sn-security-warning{padding:14px 16px;background:#40251c;border-left:4px solid #f59e0b;color:#ffe2bd;margin-bottom:20px;line-height:1.5}
.sn-security-success{padding:14px 16px;background:#123c2a;border-left:4px solid #22c55e;color:#d7fbe7;margin-bottom:20px;line-height:1.5}
.sn-security-error{padding:14px 16px;background:#442020;border-left:4px solid #ef4444;color:#ffd9d9;margin-bottom:20px}
.sn-secret-list{display:grid;gap:14px;margin:20px 0}
.sn-secret-row{display:grid;grid-template-columns:130px minmax(0,1fr) auto;gap:10px;align-items:center}
.sn-secret-row strong{font-size:14px}.sn-secret-value{background:#0b1320;border:1px solid #30405a;padding:12px;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#dcfce7}
.sn-copy-secret,.sn-rotate-button{border:0;background:var(--sn-green);color:#fff;padding:11px 15px;font-weight:850;cursor:pointer}
.sn-rotate-form{margin-top:24px;padding-top:22px;border-top:1px solid #2b3a52}.sn-rotate-form label{display:flex;align-items:flex-start;gap:10px;color:#c5cfdd;line-height:1.45;margin-bottom:16px}.sn-rotate-form input{margin-top:4px}
.sn-security-note{color:#9faec3;font-size:13px;line-height:1.55}
@media(max-width:800px){
  .sn-messenger,.sn-admin-messenger{height:calc(100vh - 64px);height:calc(100dvh - 64px)}
  .sn-admin-security-link{display:none}
  .sn-security-page{padding:12px}.sn-security-card{padding:20px}
  .sn-security-head{display:block}.sn-security-back{display:inline-block;margin-top:14px}
  .sn-secret-row{grid-template-columns:1fr}.sn-copy-secret{width:100%}
}


/* V1.2 — Footer d’application et écran de test SSO. */
body.sn-body:not(.sn-auth-page) .sn-app,
body.sn-body:not(.sn-auth-page) .sn-admin-app{
    display:grid;
    grid-template-rows:72px minmax(0,1fr) 34px;
}
body.sn-body:not(.sn-auth-page) .sn-topbar,
body.sn-body:not(.sn-auth-page) .sn-admin-topbar{
    position:relative;
    top:auto;
}
body.sn-body:not(.sn-auth-page) .sn-messenger,
body.sn-body:not(.sn-auth-page) .sn-admin-messenger{
    height:auto!important;
}
.sn-app-footer{
    min-height:34px;
    padding:0 18px;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:14px;
    border-top:1px solid var(--sn-line);
    background:#fff;
    color:var(--sn-muted);
    font-size:11px;
    white-space:nowrap;
    overflow:hidden;
}
.sn-app-footer a{color:inherit;text-decoration:none;font-weight:750}
.sn-admin-footer{background:#0c1220;border-color:#253147;color:#91a0b8}
.sn-admin-test-link{white-space:nowrap;color:#d7fbe7!important}
.sn-test-page{min-height:100vh;padding:28px;background:linear-gradient(145deg,#111827,#1c293e);color:#fff;overflow:auto}
.sn-test-card{width:min(940px,100%);margin:0 auto;background:#151f30;border:1px solid #2b3a52;padding:28px;box-shadow:var(--sn-shadow)}
.sn-test-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}
.sn-test-head h1{margin:0 0 7px}.sn-test-head p{margin:0;color:#a6b2c5;line-height:1.5}
.sn-test-back{color:#d5deeb;text-decoration:none;font-weight:800}
.sn-test-info{padding:14px 16px;background:#123c2a;border-left:4px solid #22c55e;color:#d7fbe7;line-height:1.5;margin-bottom:20px}
.sn-test-warning{padding:14px 16px;background:#40251c;border-left:4px solid #f59e0b;color:#ffe2bd;line-height:1.5;margin-bottom:20px}
.sn-test-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}
.sn-test-form label{display:grid;gap:7px;color:#d5deeb;font-size:13px;font-weight:750}
.sn-test-form input,.sn-test-form select{width:100%;background:#202c40;border:1px solid #33435c;color:#fff;padding:11px 12px;outline:none}
.sn-test-form input:focus,.sn-test-form select:focus{border-color:#22c55e}
.sn-test-form .sn-test-full{grid-column:1/-1}
.sn-test-submit{grid-column:1/-1;border:0;background:var(--sn-green);color:#fff;padding:12px 18px;font-weight:850;cursor:pointer}
.sn-test-result{margin-top:22px;padding-top:20px;border-top:1px solid #2b3a52}
.sn-test-result h2{margin:0 0 10px;font-size:19px}
.sn-test-url{padding:12px;background:#0b1320;border:1px solid #30405a;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#dcfce7;font-size:12px}
.sn-test-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.sn-test-actions button{border:0;background:var(--sn-green);color:#fff;padding:11px 15px;font-weight:850;cursor:pointer}
.sn-test-actions a{display:inline-flex;align-items:center;padding:11px 15px;background:#24344c;color:#fff;text-decoration:none;font-weight:800}
.sn-test-steps{margin:22px 0 0;padding-left:22px;color:#c5cfdd;line-height:1.65}
.sn-test-error{padding:14px 16px;background:#442020;border-left:4px solid #ef4444;color:#ffd9d9;margin-bottom:20px}
@media(max-width:800px){
    body.sn-body:not(.sn-auth-page) .sn-app,
    body.sn-body:not(.sn-auth-page) .sn-admin-app{grid-template-rows:64px minmax(0,1fr) 30px}
    .sn-app-footer{min-height:30px;padding:0 8px;gap:8px;font-size:10px}
    .sn-admin-test-link{display:none}
    .sn-test-page{padding:12px}.sn-test-card{padding:20px}.sn-test-head{display:block}.sn-test-back{display:inline-block;margin-top:14px}
    .sn-test-form{grid-template-columns:1fr}.sn-test-form .sn-test-full,.sn-test-submit{grid-column:auto}
}

/* V1.4 — ouverture fiable des conversations et affichage plein écran sur largeur intermédiaire. */
.sn-conversation-item.is-loading{position:relative;pointer-events:none;opacity:.72}
.sn-conversation-item.is-loading::after{
    content:"";position:absolute;right:14px;top:50%;width:17px;height:17px;margin-top:-9px;
    border:2px solid rgba(13,107,67,.22);border-top-color:var(--sn-green);border-radius:50%;
    animation:sn-chat-spin .7s linear infinite
}
@keyframes sn-chat-spin{to{transform:rotate(360deg)}}

/* Sur tablette, petit ordinateur ou fenêtre réduite, la conversation remplace clairement la liste. */
@media(max-width:1100px){
    .sn-messenger,.sn-admin-messenger{display:block;position:relative;max-width:none;width:100%;margin:0}
    .sn-sidebar,.sn-admin-sidebar{height:100%;width:100%;border:0}
    .sn-chat-panel,.sn-admin-chat{
        position:absolute;inset:0;z-index:30;transform:translateX(100%);
        transition:transform .2s ease;background:#eef3f0
    }
    .sn-messenger.chat-open .sn-chat-panel,
    .sn-admin-messenger.chat-open .sn-admin-chat{transform:translateX(0)}
    .sn-back-button{display:block}
    .sn-conversation-list,.sn-admin-list{height:calc(100% - 89px)}
}

/* V1.5 — retour visuel immédiat et ouverture forcée de la discussion. */
.sn-inline-state{
    width:min(520px,calc(100% - 32px));margin:auto;padding:28px 24px;background:#fff;
    border:1px solid var(--sn-line);box-shadow:0 12px 34px rgba(23,33,29,.10);
    display:grid;justify-items:center;text-align:center;gap:10px;color:var(--sn-text)
}
.sn-inline-state small{color:var(--sn-muted);line-height:1.5;overflow-wrap:anywhere}
.sn-inline-state button{border:0;background:var(--sn-green);color:#fff;padding:10px 16px;font-weight:800;cursor:pointer}
.sn-inline-error{border-left:4px solid #d14343}
.sn-inline-error strong{color:#a72f2f}
.sn-inline-spinner{width:28px;height:28px;border:3px solid rgba(13,107,67,.18);border-top-color:var(--sn-green);border-radius:50%;animation:sn-chat-spin .7s linear infinite}
.sn-chat-view[aria-hidden="false"]{display:grid!important;visibility:visible!important;opacity:1!important}
.sn-empty-state[aria-hidden="true"]{display:none!important}
@media(max-width:1100px){
    .sn-messenger.chat-open .sn-chat-panel,
    .sn-admin-messenger.chat-open .sn-admin-chat{transform:translateX(0)!important;visibility:visible!important}
}

/* V1.6 — le panneau de discussion devient le repère de ses vues internes.
   Sans position:relative sur grand écran, les blocs positionnés en absolute
   étaient calculés depuis la fenêtre puis découpés par overflow:hidden. */
.sn-chat-panel,
.sn-admin-chat{
    position:relative;
    min-width:0;
    isolation:isolate;
}

/* Les deux vues occupent exactement le panneau, sans dépendre du viewport. */
.sn-chat-panel > .sn-empty-state,
.sn-chat-panel > .sn-chat-view,
.sn-admin-chat > .sn-empty-state,
.sn-admin-chat > .sn-chat-view{
    inset:0;
    width:auto;
    height:auto;
}

/* En mode tablette/mobile, la règle existante reste prioritaire. */
@media(max-width:1100px){
    .sn-chat-panel,
    .sn-admin-chat{
        position:absolute;
    }
}

/* V1.7 — bascule déterministe liste/discussion, sans panneau hors écran. */
.sn-messenger,
.sn-admin-messenger{
    width:100%!important;
    max-width:none!important;
    margin:0!important;
    min-height:0!important;
    overflow:hidden!important;
}

.sn-chat-panel,
.sn-admin-chat{
    position:relative!important;
    inset:auto!important;
    transform:none!important;
    min-width:0!important;
    min-height:0!important;
    overflow:hidden!important;
}

.sn-chat-panel > .sn-empty-state,
.sn-chat-panel > .sn-chat-view,
.sn-admin-chat > .sn-empty-state,
.sn-admin-chat > .sn-chat-view{
    position:absolute!important;
    inset:0!important;
    width:100%!important;
    height:100%!important;
    min-width:0!important;
    min-height:0!important;
}

@media (min-width:1101px){
    .sn-messenger{
        display:grid!important;
        grid-template-columns:360px minmax(0,1fr)!important;
    }
    .sn-admin-messenger{
        display:grid!important;
        grid-template-columns:390px minmax(0,1fr)!important;
    }
    .sn-sidebar,
    .sn-admin-sidebar,
    .sn-chat-panel,
    .sn-admin-chat{
        display:block!important;
        width:auto!important;
        height:100%!important;
    }
    .sn-admin-sidebar{
        display:grid!important;
    }
}

@media (max-width:1100px){
    .sn-messenger,
    .sn-admin-messenger{
        display:block!important;
        position:relative!important;
    }
    .sn-sidebar,
    .sn-admin-sidebar{
        display:block!important;
        width:100%!important;
        height:100%!important;
    }
    .sn-admin-sidebar{
        display:grid!important;
    }
    .sn-chat-panel,
    .sn-admin-chat{
        display:none!important;
        width:100%!important;
        height:100%!important;
        z-index:40!important;
    }
    .sn-messenger.chat-open > .sn-sidebar,
    .sn-admin-messenger.chat-open > .sn-admin-sidebar{
        display:none!important;
    }
    .sn-messenger.chat-open > .sn-chat-panel,
    .sn-admin-messenger.chat-open > .sn-admin-chat{
        display:block!important;
    }
    .sn-back-button{
        display:block!important;
    }
}


/* V1.9 — rendu Admin réellement mobile dans l'application Android. */
@media (max-width:600px){
    html,body,.sn-admin-app,.sn-admin-messenger,.sn-admin-chat,.sn-chat-view{
        width:100%!important;
        max-width:100%!important;
        overflow-x:hidden!important;
        box-sizing:border-box!important;
    }
    .sn-admin-chat-header{
        min-width:0!important;
        padding:8px 10px!important;
        gap:8px!important;
        flex-wrap:wrap!important;
        align-items:center!important;
        overflow:hidden!important;
    }
    .sn-admin-contact{
        flex:1 1 150px!important;
        min-width:0!important;
    }
    .sn-admin-contact>div:last-child{
        min-width:0!important;
    }
    .sn-admin-contact h2,
    .sn-admin-contact p{
        max-width:100%!important;
        overflow:hidden!important;
        text-overflow:ellipsis!important;
        white-space:nowrap!important;
    }
    .sn-admin-controls{
        flex:1 1 100%!important;
        width:100%!important;
        min-width:0!important;
        display:grid!important;
        grid-template-columns:minmax(0,1fr) minmax(0,1fr)!important;
        gap:6px!important;
    }
    .sn-admin-controls select{
        width:100%!important;
        max-width:none!important;
        min-width:0!important;
        padding:8px 6px!important;
        font-size:12px!important;
    }
    .sn-contact-strip{
        width:100%!important;
        max-width:100%!important;
        overflow:hidden!important;
        padding:8px 12px!important;
        gap:5px 10px!important;
        line-height:1.35!important;
    }
    .sn-contact-strip>*{
        max-width:100%!important;
        overflow-wrap:anywhere!important;
    }
    .sn-messages{
        width:100%!important;
        max-width:100%!important;
        padding:12px!important;
        box-sizing:border-box!important;
    }
    .sn-message-row{
        width:100%!important;
        min-width:0!important;
    }
    .sn-message{
        max-width:84%!important;
        min-width:0!important;
        box-sizing:border-box!important;
    }
    .sn-quick-replies{
        width:100%!important;
        max-width:100%!important;
        box-sizing:border-box!important;
    }
    .sn-composer{
        width:100%!important;
        max-width:100%!important;
        min-width:0!important;
        box-sizing:border-box!important;
        grid-template-columns:40px minmax(0,1fr) 72px!important;
        gap:7px!important;
        padding:9px!important;
    }
    .sn-composer textarea{
        width:100%!important;
        min-width:0!important;
        box-sizing:border-box!important;
    }
    .sn-composer button{
        width:72px!important;
        min-width:0!important;
        padding:10px 5px!important;
        font-size:12px!important;
    }
    .sn-app-footer{
        max-width:100%!important;
        box-sizing:border-box!important;
    }
}