:root {
  --bg:#f3f4f6;--card:#fff;--text:#111827;--muted:#6b7280;--blue:#1e40af;
  --accent:#2563eb;--success:#16a34a;--warn:#f59e0b;--danger:#dc2626;--border:#e5e7eb;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Tajawal',system-ui,sans-serif;background:var(--bg);color:var(--text)}
.container{max-width:1100px;margin:24px auto;padding:0 16px}
h1,h2{margin:0 0 10px;color:var(--blue)}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:0 8px 16px rgba(0,0,0,.03);margin-bottom:18px}
.topbar{display:flex;align-items:center;justify-content:space-between;background:var(--card);border-bottom:1px solid var(--border);padding:12px 16px;position:sticky;top:0;z-index:10}
.brand{display:flex;align-items:center;gap:10px;color:var(--blue);font-weight:700}
.brand svg{width:28px;height:28px}
.logout{color:var(--danger);text-decoration:none;font-weight:600}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:right}
thead th{background:#f8fafc;font-weight:700}
input,select,button{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:10px;font-size:15px}
button{background:var(--accent);color:#fff;border:none;cursor:pointer}
button:hover{opacity:.95}
footer{text-align:center;margin-top:20px;color:var(--muted)}
/* 🔹 التجاوب للأجهزة المختلفة */
@media (max-width:900px){
  .grid-2,.grid-3{grid-template-columns:1fr!important}
  table th,table td{font-size:14px;padding:6px 8px}
  .topbar{flex-direction:column;align-items:flex-start;gap:8px}
  button,input,select{font-size:14px;padding:8px 10px}
  .container{padding:8px}
  .card{padding:12px}
  footer{font-size:12px}
}
@media (max-width:500px){
  h1,h2{font-size:18px}
  .brand span{font-size:16px}
}