/* Arabic RTL clean UI */
:root{
  --bg:#0f1115;
  --card:#171a21;
  --muted:#aab2c0;
  --text:#f3f5f7;
  --brand:#10b981; /* teal-500 */
  --brand-2:#22d3ee; /* cyan-400 */
  --danger:#ef4444;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:linear-gradient(135deg,var(--bg),#0b0d11);color:var(--text);font-family:"Tajawal",system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial,"Noto Sans Arabic",sans-serif;line-height:1.6}

.container{max-width:1000px;margin:auto;padding:24px}
header h1{margin:.2rem 0 0;font-size:2rem;letter-spacing:.4px}
.subtitle{color:var(--muted);margin-top:.25rem}

.card{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,.005));border:1px solid rgba(255,255,255,.06);border-radius:16px;box-shadow:var(--shadow)}

form{margin-top:10px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
@media (max-width:720px){.grid{grid-template-columns:1fr}}

.field{display:flex;flex-direction:column;gap:8px}
.field span{color:#d2d7df;font-weight:600}
.field input,.field select{
  padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.08);
  background:#0c0f14;color:var(--text);outline:none;box-shadow:inset 0 0 0 9999px rgba(255,255,255,.01);
}
.field input:focus,.field select:focus{border-color:var(--brand)}

.actions{display:flex;gap:10px;margin:18px 0 6px;flex-wrap:wrap}
.btn{
  padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.12);
  background:#0f1319;color:var(--text);cursor:pointer;transition:.2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(90deg,var(--brand),var(--brand-2));border:none;color:#082b1e;font-weight:700}
.btn.outline{background:transparent;border-color:rgba(255,255,255,.24)}

.results{margin-top:8px}
.hidden{display:none}

.results h2{margin:10px 0 6px}
.result-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.result-grid .r-item{background:#0c0f14;border:1px solid rgba(255,255,255,.06);padding:12px;border-radius:12px}
.result-grid .r-item.total{border-color: var(--brand)}
.result-grid .r-item.strong{background:linear-gradient(180deg,#10221a,#0c0f14);border-color:rgba(16,185,129,.35)}
.r-label{color:var(--muted);font-size:.95rem}
.r-value{font-size:1.1rem;font-weight:700}

.note{margin-top:8px;color:#cfd6df}
.note .mono{background:#0b0e13;padding:4px 8px;border-radius:8px;border:1px dashed rgba(255,255,255,.1)}

.footer{opacity:.75;text-align:center;margin-top:8px}

@media print{
  body{background:white;color:black}
  .card{box-shadow:none;border:1px solid #ccc}
  .actions, footer{display:none}
  .r-item{border-color:#ddd;background:#fff}
}