*{box-sizing:border-box}
:root[data-theme="dark"]{
  --bg:#0f1117; --panel:#1a1d27; --text:#e8eaf0; --muted:#8b90a0;
  --accent:#5b8cff; --border:#2a2e3a; --hover:#222634;
}
:root[data-theme="light"]{
  --bg:#f4f6fb; --panel:#ffffff; --text:#1a1d27; --muted:#6b7280;
  --accent:#3b6cff; --border:#e2e6ef; --hover:#eef1f7;
}
body{margin:0;display:flex;min-height:100vh;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}

.sidebar{width:230px;background:var(--panel);border-right:1px solid var(--border);
  display:flex;flex-direction:column;padding:18px;position:sticky;top:0;height:100vh}
.brand{font-size:18px;font-weight:700;margin-bottom:22px}
.sidebar nav a{display:block;padding:11px 14px;border-radius:9px;cursor:pointer;
  color:var(--muted);text-decoration:none;margin:2px 0;font-size:14px}
.sidebar nav a.active,.sidebar nav a:hover{background:var(--accent);color:#fff}
.controls{margin-top:auto;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.controls button,.controls select{background:var(--hover);color:var(--text);
  border:1px solid var(--border);border-radius:8px;padding:8px;cursor:pointer}
.logout{color:var(--muted);text-decoration:none;font-size:13px;margin-left:auto}

main{flex:1;padding:28px;overflow:auto}
h1{margin:0 0 20px}
.tab{display:none}.tab.show{display:block}
.head{display:flex;justify-content:space-between;align-items:center}

button{background:var(--accent);color:#fff;border:0;padding:10px 16px;
  border-radius:9px;cursor:pointer;font-size:14px}
button:hover{opacity:.9}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:14px;margin-bottom:24px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;
  padding:18px;display:flex;flex-direction:column;gap:6px}
.card span{color:var(--muted);font-size:13px}
.card b{font-size:24px}

#map{height:420px;border-radius:12px;border:1px solid var(--border);overflow:hidden}

.charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.chartbox{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px}
.chartbox h4{margin:0 0 12px;color:var(--muted);font-weight:600}

.grid{width:100%;border-collapse:collapse;background:var(--panel);
  border:1px solid var(--border);border-radius:12px;overflow:hidden;margin-top:8px}
.grid th,.grid td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:14px}
.grid th{color:var(--muted);font-weight:600}
.grid tbody tr.clickable{cursor:pointer}
.grid tbody tr.clickable:hover{background:var(--hover)}
.grid .del{color:#ff5b6e;cursor:pointer;background:none;padding:4px 8px}

.settings-box{background:var(--panel);border:1px solid var(--border);
  border-radius:12px;padding:20px;max-width:640px}
.settings-box li{margin:8px 0;color:var(--muted)}

.login{justify-content:center;align-items:center}
.login-box{background:var(--panel);padding:34px;border-radius:16px;
  border:1px solid var(--border);display:flex;flex-direction:column;gap:14px;width:320px}
.login-box h2{margin:0 0 6px;text-align:center}
.login-box input{padding:12px;border-radius:9px;border:1px solid var(--border);
  background:var(--bg);color:var(--text);font-size:15px}
.err{color:#ff5b6e;text-align:center;margin:0;font-size:14px}
/* charts sizing */
.chartbox{height:330px;display:flex;flex-direction:column}
.chartbox canvas{flex:1;min-height:0!important}
.chartbox.wide{width:100%;height:360px;margin-bottom:18px}

/* meeting action buttons */
.grid td.actions{white-space:nowrap}
.btn-copy,.btn-del{padding:7px 12px;font-size:13px;border-radius:8px}
.btn-copy{background:var(--accent);color:#fff}
.btn-del{background:#ef4444;color:#fff;margin-left:8px}
.btn-copy:hover,.btn-del:hover{opacity:.88}

/* last visit two-line */
#c_last{font-size:18px;line-height:1.35}