/* ═══ LEX Chat — design system LEX (noir pur, cards #0F0F0F, pills) ═══ */
:root{
  --bg:#000; --card:#0f0f0f; --card2:#161616; --border:#262626;
  --text:#fff; --muted:#8a8a8a; --ok:#00e5a0; --warn:#ffaa00; --err:#ff5252;
  --accent:#2fd0ff; --radius:20px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
  font-size:15px; line-height:1.4; -webkit-font-smoothing:antialiased;
  min-height:100dvh; overflow-x:hidden;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
a{color:var(--accent);text-decoration:none}

/* ── Boutons pill ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:11px 20px;font-weight:700;font-size:14px;
  background:var(--card2);color:var(--text);border:1px solid var(--border);
  transition:transform .08s ease,filter .12s ease,background .12s ease}
.btn:active{transform:scale(.97)}
.btn-primary{background:#fff;color:#000;border-color:#fff}
.btn-primary:hover{filter:brightness(.92)}
.btn-ghost{background:transparent}
.btn-danger{background:transparent;color:var(--err);border-color:rgba(255,82,82,.35)}
.btn-full{width:100%}
.btn-sm{padding:8px 14px;font-size:13px}
.btn-icon{padding:9px 11px;font-size:15px}

/* ── Cards & layout ── */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.wrap{max-width:560px;margin:0 auto;padding:18px;padding-bottom:calc(24px + env(safe-area-inset-bottom,0))}
.muted{color:var(--muted)}
.field-label{display:block;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:14px 0 6px;font-weight:700}
.input{width:100%;background:#0a0a0a;border:1px solid var(--border);border-radius:14px;
  color:var(--text);padding:13px 15px;font-size:16px;outline:none}
.input:focus{border-color:#3a3a3a}

/* ── Top bar ── */
.topbar{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--border);
  position:sticky;top:0;background:rgba(0,0,0,.85);backdrop-filter:blur(10px);z-index:10}
.topbar-logo{font-weight:900;letter-spacing:.5px;font-size:18px}
.topbar-logo span{color:var(--accent);font-weight:800;font-size:11px;margin-left:3px;letter-spacing:.15em}
.topbar-spacer{flex:1}
.topbar-name{font-size:12px;color:var(--muted);max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ── Login ── */
.login{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-wrap{width:min(380px,100%)}
.login-logo{font-size:38px;font-weight:900;text-align:center;letter-spacing:1px}
.login-logo-sub{color:var(--accent);font-size:14px;font-weight:800;letter-spacing:.2em;margin-left:4px;vertical-align:middle}
.login-sub{text-align:center;color:var(--muted);font-size:13px;margin:6px 0 22px}
.login-err{background:rgba(255,82,82,.12);border:1px solid rgba(255,82,82,.35);color:#ffb4b4;
  border-radius:12px;padding:10px 14px;font-size:13px;margin-bottom:14px}
.login-link{display:block;text-align:center;font-size:12px;margin-top:16px;color:var(--muted)}
.login form .btn{margin-top:18px}

/* ── Choix de rôle ── */
.role-grid{display:grid;gap:16px;margin-top:8px}
.role-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;text-align:center;transition:border-color .15s,transform .08s}
.role-card:active{transform:scale(.98)}
.role-card:hover{border-color:#3a3a3a}
.role-emoji{font-size:44px}
.role-title{font-size:20px;font-weight:800;margin-top:8px}
.role-desc{font-size:13px;color:var(--muted);margin-top:4px}

/* ── Listes établissements ── */
.section-title{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);
  font-weight:700;margin:22px 4px 10px}
.estab{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--border);
  border-radius:16px;padding:14px 16px;margin-bottom:10px}
.estab-main{flex:1;min-width:0}
.estab-name{font-weight:700;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.estab-code{font-family:ui-monospace,monospace;font-size:13px;color:var(--accent);letter-spacing:.08em;margin-top:2px}
.estab-actions{display:flex;gap:6px;flex-shrink:0}
.chip{display:inline-block;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;
  background:var(--card2);color:var(--muted)}

/* ── Toast ── */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);
  background:#1c1c1c;border:1px solid var(--border);color:var(--text);
  padding:11px 18px;border-radius:999px;font-size:13px;font-weight:600;opacity:0;
  transition:opacity .25s,transform .25s;z-index:100;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast-err{border-color:rgba(255,82,82,.5);color:#ffb4b4}
.toast-ok{border-color:rgba(0,229,160,.5)}

/* ═══ Écran de chat ═══ */
.chat{display:flex;flex-direction:column;height:100dvh;max-width:680px;margin:0 auto}
.chat-head{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border);
  background:rgba(0,0,0,.85);backdrop-filter:blur(10px);position:sticky;top:0;z-index:10;flex-shrink:0}
.chat-title{flex:1;min-width:0;font-weight:800;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-title small{display:block;font-size:11px;color:var(--muted);font-weight:600}

/* Fils (host) */
.threads-bar{display:flex;gap:6px;overflow-x:auto;padding:8px 12px;border-bottom:1px solid var(--border);flex-shrink:0;-webkit-overflow-scrolling:touch}
.threads-bar::-webkit-scrollbar{display:none}
.thread-chip{position:relative;flex:0 0 auto;background:var(--card2);border:1px solid var(--border);
  border-radius:999px;padding:7px 14px;font-size:13px;font-weight:600;white-space:nowrap}
.thread-chip.active{background:#fff;color:#000;border-color:#fff}
.thread-chip .dot{position:absolute;top:-2px;right:-2px;width:11px;height:11px;border-radius:50%;
  background:var(--err);box-shadow:0 0 0 2px var(--bg);animation:pulse 1s infinite}

/* Messages */
.chat-msgs{flex:1;overflow-y:auto;padding:14px 12px;display:flex;flex-direction:column;gap:8px}
.chat-empty{margin:auto;color:var(--muted);font-size:13px;text-align:center;padding:20px}
.bubble{max-width:80%;padding:9px 13px;border-radius:16px;font-size:15px;line-height:1.35;word-break:break-word}
.bubble.theirs{align-self:flex-start;background:var(--card2);border:1px solid var(--border);border-bottom-left-radius:5px}
.bubble.mine{align-self:flex-end;background:#fff;color:#000;border-bottom-right-radius:5px}
.bubble.theirs.active-in{border-color:var(--err);box-shadow:0 0 0 1px var(--err)}
.bubble-from{font-size:10px;font-weight:800;letter-spacing:.04em;color:var(--muted);margin-bottom:2px}
.bubble.mine .bubble-from{display:none}
.bubble-status{font-size:11px;margin-top:5px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.bubble.mine .bubble-status{color:#555}
.st-active{color:#c47b00;font-weight:700}
.st-closed{color:#0a9d6e;font-weight:700}
.bubble.mine .st-active{color:#9a5b00}
.mini{font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;border:1px solid currentColor;background:transparent;line-height:1}
.bubble.mine .mini{color:#7a3b00}
.theirs-close{align-self:flex-start;margin-top:-2px}

/* Composer */
.composer{flex-shrink:0;border-top:1px solid var(--border);padding:8px 10px calc(8px + env(safe-area-inset-bottom,0));background:#050505}
.presets{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin-bottom:7px}
.preset{background:var(--card2);border:1px solid var(--border);border-radius:11px;padding:8px 4px;
  font-size:12px;font-weight:600;line-height:1.15;min-height:42px;display:flex;align-items:center;justify-content:center;text-align:center;
  overflow:hidden}
.preset:active{background:#222}
.preset.resp{border-color:rgba(0,229,160,.35)}
.composer-row{display:flex;gap:7px;align-items:center}
.composer-row .input{flex:1;padding:11px 14px;border-radius:999px}
.send-btn{flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:#fff;color:#000;font-size:18px;font-weight:800;
  display:flex;align-items:center;justify-content:center}
.send-btn:active{transform:scale(.94)}

/* Bandeau notif entrante + clignotement */
.alert-banner{background:var(--err);color:#fff;text-align:center;font-weight:800;font-size:13px;padding:9px;
  flex-shrink:0;animation:pulse 1s infinite;cursor:pointer}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.chat.flash{animation:flashbg .5s ease 2}
@keyframes flashbg{0%,100%{background:transparent}50%{background:rgba(255,82,82,.14)}}

/* Réglages messages préprogrammés */
.set-row{display:flex;gap:7px;align-items:center;margin-bottom:7px}
.set-row .input{flex:1}
.set-row .btn-icon{flex:0 0 auto}

/* ── Petits écrans / fenêtre réduite ── */
@media (max-width:420px){
  .wrap{padding:12px}
  .role-emoji{font-size:36px}
  .preset{font-size:11px;min-height:38px;padding:6px 2px}
  .bubble{font-size:14px}
}
@media (max-width:300px){
  .presets{gap:3px}
  .preset{font-size:9.5px;min-height:32px;border-radius:8px}
  .chat-title{font-size:14px}
  .send-btn{width:40px;height:40px}
}