*{box-sizing:border-box}
body{margin:0;font-family:system-ui,Segoe UI,Arial,sans-serif}
.header{padding:12px 16px;border-bottom:1px solid #ccc;display:flex;align-items:center;justify-content:space-between;gap:12px}
.header h1{margin:0;font-size:18px}
.actions{display:flex;gap:10px;align-items:center}
.actions button,.logout{padding:8px 10px;border:1px solid #ccc;background:#f7f7f7;cursor:pointer;text-decoration:none;color:inherit}
.logout{background:#fff}
.main{display:grid;grid-template-columns:300px 1fr;min-height:calc(100vh - 58px)}
.sidebar{border-right:1px solid #ccc;padding:12px}
.side-top{display:grid;gap:8px;margin-bottom:10px}
.sidebar h2{margin:0;font-size:14px}
.search{width:100%;padding:10px;border:1px solid #ccc}
.nav{display:grid;gap:6px}
.nav button{width:100%;text-align:left;padding:10px;border:1px solid #bbb;background:#f7f7f7;cursor:pointer}
.nav button.active{outline:2px solid #333}
.content{padding:16px}
.instructions{white-space:pre-wrap;background:#f7f7f7;padding:12px;border:1px solid #ccc}
.log{margin-top:12px;padding:10px;border:1px solid #ccc;background:#fafafa}
.log .top{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.small{opacity:.75;font-size:12px;margin:6px 0}
.lock{max-width:320px;margin:110px auto;text-align:center;padding:16px;border:1px solid #ddd}
.lock input{width:100%;padding:10px;margin:8px 0;border:1px solid #ccc}
.lock button{padding:10px 12px;border:1px solid #ccc;background:#f7f7f7;cursor:pointer;width:100%}
.error{color:#b00020;margin:10px 0}
/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;padding:14px}
.hidden{display:none}
.modal-card{background:#fff;max-width:980px;width:100%;border:1px solid #ccc;padding:12px}
.modal-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.modal-top h3{margin:0}
.modal-top button{border:1px solid #ccc;background:#f7f7f7;padding:6px 10px;cursor:pointer}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
textarea,input{width:100%;padding:8px;border:1px solid #ccc}
.row{display:flex;gap:10px;align-items:center;margin-top:8px;flex-wrap:wrap}
.danger{border-color:#b00020 !important;color:#b00020;background:#fff}
.msg{margin-top:8px;font-size:12px;opacity:.9}
.lbl{display:block;font-size:12px;margin:8px 0}
.lbl input,.lbl textarea{margin-top:4px}
@media(max-width:900px){
  .main{grid-template-columns:1fr}
  .sidebar{border-right:none;border-bottom:1px solid #ccc}
  .grid{grid-template-columns:1fr}
}
.grid-2{
  display:grid;
  grid-template-columns: 1fr 1.2fr;
  gap:16px;
}

@media (max-width: 800px){
  .grid-2{
    grid-template-columns: 1fr;
  }
}