:root{
  --navy:#0b2545;
  --navy2:#13315c;
  --accent:#c8932a;
  --bg:#f4f6f9;
  --border:#dde3ec;
  --text:#1c2733;
  --muted:#67748a;
  --danger:#b3261e;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}
.hidden{display:none !important;}

.center-screen{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(160deg,var(--navy),var(--navy2));
}
.card{background:#fff;border-radius:14px;box-shadow:0 10px 40px rgba(0,0,0,.25);}
.login-card{
  width:340px;
  padding:32px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.login-card h1{margin:0;color:var(--navy);letter-spacing:.5px;}
.subtitle{margin:0 0 8px;color:var(--muted);font-size:13px;}
.login-card label{display:flex;flex-direction:column;font-size:13px;color:var(--muted);gap:6px;}
.login-card input{
  padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;
}
.login-card button{
  margin-top:6px;
  background:var(--navy);
  color:#fff;
  border:none;
  padding:11px;
  border-radius:8px;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
}
.login-card button:hover{background:var(--navy2);}
.error{color:var(--danger);font-size:13px;min-height:16px;margin:0;}

.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:var(--navy);
  color:#fff;
  padding:12px 20px;
}
.brand{font-weight:700;font-size:18px;}
.brand span{font-weight:400;font-size:13px;color:#c9d4e6;margin-left:8px;}
.top-actions{display:flex;align-items:center;gap:14px;font-size:13px;}
.ghost{
  background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;
  padding:6px 12px;border-radius:6px;cursor:pointer;font-size:13px;
}
.ghost:hover{background:rgba(255,255,255,.1);}

.layout{display:flex;min-height:calc(100vh - 52px);}
.sidebar{
  width:260px;
  background:#fff;
  border-right:1px solid var(--border);
  padding:16px;
  flex-shrink:0;
}
.full{width:100%;}
.primary{
  background:var(--navy);color:#fff;border:none;padding:10px 14px;border-radius:8px;
  font-weight:600;cursor:pointer;font-size:13px;
}
.primary:hover{background:var(--navy2);}
.secondary{
  background:#fff;border:1px solid var(--navy);color:var(--navy);
  padding:9px 14px;border-radius:8px;font-weight:600;cursor:pointer;font-size:13px;
}
.secondary:hover{background:#eef2f8;}
.danger{
  background:#fff;border:1px solid var(--danger);color:var(--danger);
  padding:9px 14px;border-radius:8px;font-weight:600;cursor:pointer;font-size:13px;
}
.danger:hover{background:#fdeceb;}

.list-of-lists{margin-top:14px;display:flex;flex-direction:column;gap:6px;max-height:80vh;overflow:auto;}
.list-item{
  padding:9px 10px;border-radius:8px;cursor:pointer;font-size:13px;border:1px solid transparent;
  display:flex;flex-direction:column;gap:2px;
}
.list-item:hover{background:var(--bg);}
.list-item.active{background:#eef2f8;border-color:var(--navy);}
.list-item .lt-title{font-weight:600;color:var(--text);}
.list-item .lt-date{color:var(--muted);font-size:11px;}

.content{flex:1;padding:20px 24px;overflow:auto;}
.content-header{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:6px;}
.title-input{
  flex:1;min-width:240px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:15px;font-weight:600;
}
.actions{display:flex;gap:8px;flex-wrap:wrap;}
.save-status{font-size:12px;color:var(--muted);min-height:16px;margin:4px 0 12px;}

.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:10px;background:#fff;}
table{border-collapse:collapse;width:100%;font-size:12.5px;min-width:1680px;}
thead th{
  background:var(--navy);color:#fff;padding:8px 6px;text-align:left;position:sticky;top:0;font-size:11.5px;
}
thead th small{color:#c9d4e6;font-weight:400;}
tbody td{border-bottom:1px solid var(--border);padding:4px;vertical-align:middle;}
tbody tr.main-row td{border-top:2px solid #cdd6e3;}
tbody tr.inner-row td{background:#fafbfd;}
tbody input, tbody textarea{
  width:100%;border:1px solid var(--border);border-radius:5px;padding:5px 6px;font-size:12.5px;font-family:inherit;
}
tbody input:focus{outline:2px solid var(--navy);border-color:var(--navy);}
input.calc-cell{
  background:#eef2f8;color:var(--navy);font-weight:600;text-align:right;border-style:dashed;
}
.no-cell{font-weight:700;color:var(--navy);text-align:center;}
.inner-label{font-size:11px;color:var(--muted);font-style:italic;padding-left:6px;white-space:nowrap;}
.hint{color:var(--muted);font-size:12px;margin-top:10px;}

@media(max-width:800px){
  .layout{flex-direction:column;}
  .sidebar{width:100%;border-right:none;border-bottom:1px solid var(--border);}
}