:root{
  --bg:#0f1720; --panel:#16212e; --panel2:#1d2a3a; --line:#26384c;
  --text:#e8eef4; --muted:#8aa0b6; --accent:#2f9e6b; --accent2:#3aa0e0; --danger:#e06a5a;
  --radius:14px; font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box} html,body{margin:0;height:100%;background:var(--bg);color:var(--text)}
#app{height:100vh;display:flex;flex-direction:column}

/* header */
.top{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);background:var(--panel)}
.top .logo{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;font-weight:700}
.top h1{font-size:16px;margin:0;font-weight:600} .top .sp{flex:1}
.top .u{color:var(--muted);font-size:13px}
.btn{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:9px 14px;font-size:14px;cursor:pointer}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn:hover{filter:brightness(1.08)}

/* chat */
.chat{flex:1;overflow-y:auto;padding:22px;max-width:980px;width:100%;margin:0 auto}
.msg{margin-bottom:18px;display:flex;gap:10px}
.msg .av{width:30px;height:30px;border-radius:8px;flex:none;display:grid;place-items:center;font-size:13px;font-weight:700}
.msg.user .av{background:var(--accent2)} .msg.ai .av{background:var(--panel2);border:1px solid var(--line)}
.bubble{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;max-width:100%;overflow-x:auto}
.msg.user .bubble{background:var(--panel2)}
.bubble h3{margin:0 0 6px;font-size:15px} .bubble .expl{color:var(--muted);font-size:13px;margin-bottom:10px}

table{border-collapse:collapse;width:100%;font-size:13px}
th,td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
th{color:var(--muted);font-weight:600;position:sticky;top:0;background:var(--panel)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
tfoot td.tot{border-top:2px solid var(--accent);border-bottom:0;font-weight:700;
  color:var(--text);background:rgba(47,158,107,.10);position:sticky;bottom:0}
.chartbox{margin-top:14px;max-height:320px}
.tools{margin-top:12px;display:flex;gap:8px}
.tools .btn{padding:7px 12px;font-size:13px}

/* composer */
.composer{border-top:1px solid var(--line);background:var(--panel);padding:14px 20px}
.composer .inner{max-width:980px;margin:0 auto;display:flex;gap:10px}
.composer textarea{flex:1;background:var(--panel2);border:1px solid var(--line);border-radius:12px;color:var(--text);
  padding:12px 14px;font-size:15px;resize:none;height:48px;font-family:inherit}
.chips{max-width:980px;margin:0 auto 10px;display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:20px;
  padding:6px 12px;font-size:12.5px;cursor:pointer} .chip:hover{color:var(--text);border-color:var(--accent)}
.suggest{margin:6px 0 4px;padding:10px 12px;border:1px solid var(--accent2);border-radius:10px;
  background:rgba(58,160,224,.08);color:var(--text);font-size:13px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.btn.mini{padding:5px 11px;font-size:12.5px}
.sqlbox{margin-top:12px;border:1px solid var(--line);border-radius:10px;background:#0c1117}
.sqlbox summary{cursor:pointer;padding:8px 12px;color:var(--muted);font-size:12.5px;user-select:none}
.sqlbox summary:hover{color:var(--text)}
.sqlbox pre{margin:0;padding:12px 14px;border-top:1px solid var(--line);overflow-x:auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;color:#9fd3b0;white-space:pre-wrap;word-break:break-word}
.err{color:var(--danger)}
.dots span{animation:b 1s infinite}.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}
@keyframes b{0%,80%{opacity:.3}40%{opacity:1}}

/* login */
.login{margin:auto;width:340px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px}
.login h2{margin:0 0 4px} .login p{color:var(--muted);font-size:13px;margin:0 0 18px}
.login input{width:100%;background:var(--panel2);border:1px solid var(--line);border-radius:10px;
  color:var(--text);padding:11px 13px;font-size:14px;margin-bottom:11px}
.login .btn{width:100%}
/* Modale gestione utenti */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;
  justify-content:center;z-index:1000}
.modal-box{background:var(--panel);border:1px solid var(--line);border-radius:12px;width:90%;
  max-width:700px;max-height:80vh;display:flex;flex-direction:column;box-shadow:0 10px 40px rgba(0,0,0,.4)}
.modal-top{display:flex;align-items:center;padding:14px;border-bottom:1px solid var(--line)}
.modal-top h2{margin:0;flex:1;font-size:15px}
.modal-close{background:transparent;border:0;color:var(--text);font-size:20px;cursor:pointer;padding:0;width:30px;height:30px;display:grid;place-items:center}
.modal-body{flex:1;overflow-y:auto;padding:14px}
.users-list table{width:100%;font-size:12px;margin-bottom:20px}
.users-list th{color:var(--muted);text-align:left;padding:6px;border-bottom:1px solid var(--line)}
.users-list td{padding:6px;border-bottom:1px solid var(--line)}
.users-form input,.users-form select{font-family:inherit;font-size:13px}
.btn-tiny{background:transparent;border:1px solid var(--line);color:var(--text);
  padding:4px 8px;border-radius:4px;font-size:12px;cursor:pointer}
.btn-tiny:hover{background:var(--line)}
.btn-tiny.danger{color:var(--danger)}
@media(max-width:560px){.chat{padding:14px}.composer{padding:12px}.modal-box{width:95%}}