:root{
  --bg:#0b1020; --panel:#0f172a; --panel-2:#111827; --muted:#9fb0c8;
  --text:#e5e7eb; --primary:#6366f1; --danger:#ef4444; --ok:#22c55e;
  --ring: rgba(99,102,241,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font:16px/1.5 system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text); background:linear-gradient(180deg,#0b1020,#0b1020 40%,#0e1326 100%);
}
a{color:#a5b4fc;text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1100px,92vw); margin-inline:auto}
.header{display:flex; align-items:center; justify-content:space-between; padding:16px 0}
.app-title{margin:0; font-size:22px; letter-spacing:.3px}
.header-actions{display:flex; gap:8px}
.header select{padding:8px 10px; border-radius:10px; background:rgba(2,6,23,.6); color:var(--text); border:1px solid rgba(148,163,184,.25)}
.content{display:flex; flex-direction:column; gap:16px; padding-bottom:160px}
.card{
  background:linear-gradient(180deg,rgba(17,24,39,.6),rgba(17,24,39,.35));
  border:1px solid rgba(255,255,255,.06);
  border-radius:14px; padding:16px; backdrop-filter: blur(6px);
  box-shadow: 0 6px 20px -12px rgba(0,0,0,.6);
}
.card h2{margin:0 0 10px; font-size:18px}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:12px}
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
@media (max-width:900px){ .grid-2,.grid-3{grid-template-columns:1fr} }

label{display:flex; flex-direction:column; gap:6px; color:#cbd5e1}
input,select,textarea{
  width:100%; padding:10px 12px; border-radius:10px; border:1px solid rgba(148,163,184,.25);
  background:rgba(2,6,23,.6); color:var(--text); outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--primary); box-shadow:0 0 0 4px var(--ring)}
input[aria-invalid="true"]{border-color:var(--danger)}
.muted{color:var(--muted)}

.items-head{display:grid; grid-template-columns:3fr .8fr 1.2fr .8fr 1.2fr 40px; gap:8px; padding:6px 8px; color:#cbd5e1}
.items-list{display:flex; flex-direction:column; gap:8px}
.item-row{display:grid; grid-template-columns:3fr .8fr 1.2fr .8fr 1.2fr 40px; gap:8px; align-items:center}
.item-row input{padding:8px}
.item-del{border:none; background:transparent; color:#cbd5e1; cursor:pointer}
.item-del:hover{color:#fff}

.toolbar-inline{display:flex; gap:8px; flex-wrap:wrap; margin-top:8px}
.btn{
  appearance:none; border:1px solid rgba(148,163,184,.25); background:rgba(2,6,23,.6);
  color:var(--text); padding:10px 14px; border-radius:12px; cursor:pointer; text-decoration:none
}
.btn:hover{border-color:#cbd5e1; text-decoration:none}
.btn.primary{background:linear-gradient(180deg,#4f46e5,#4338ca); border-color:transparent}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent}
.btn.danger{border-color:rgba(239,68,68,.5); color:#fecaca}
.btn[disabled], .btn.lock[aria-disabled="true"]{opacity:.5; cursor:not-allowed}
.lock::after{content:"🔒"; margin-left:.5ch}

.fab{
  position:fixed; inset:auto 0 16px 0; display:flex; gap:10px; justify-content:center; z-index:20;
  padding:8px; background:linear-gradient(180deg,rgba(2,6,23,.2),rgba(2,6,23,.6)); backdrop-filter: blur(10px)
}
.footer{
  padding:24px 0 80px; text-align:center; position:relative; z-index:1;
}
.footer .muted{color:#cfe1ff}
.footer a{color:#e0e7ff; text-decoration:underline}

.status-bar{
  position:sticky; top:0; z-index:50; text-align:center; padding:6px 10px;
  background:linear-gradient(180deg,#101826,#0f172a); border-bottom:1px solid rgba(255,255,255,.06)
}

.sticky{position:sticky; bottom:86px}
.totals-row{display:flex; justify-content:space-between; padding:6px 0; border-top:1px dashed rgba(148,163,184,.25)}
.totals-row.total{font-size:18px}

.toasts{ position:fixed; right:16px; bottom:100px; display:flex; flex-direction:column; gap:8px; z-index:30 }
.toast{
  background:#111827; border:1px solid rgba(148,163,184,.25); color:#e5e7eb;
  padding:10px 12px; border-radius:10px; min-width:220px; box-shadow:0 10px 30px -12px black
}

/* Dialog */
body.modal-open{overflow:hidden}
.dialog-backdrop{
  position:fixed; inset:0; background:rgba(0,0,0,.55); display:none; align-items:center; justify-content:center; z-index:60;
}
.dialog-backdrop[aria-hidden="false"]{display:flex}
.dialog{
  width:min(560px,92vw); background:#0f172a; border:1px solid rgba(255,255,255,.12); border-radius:14px; padding:16px;
  box-shadow:0 20px 60px -20px rgba(0,0,0,.8)
}
.dialog h3{margin:0 0 8px}
.dialog .actions{display:flex; gap:8px; justify-content:flex-end; margin-top:12px}