:root{
  --bg:#0f172a;
  --card:#1e293b;
  --text:#fff;
  --accent:#38bdf8;
}

.light{
  --bg:#f1f5f9;
  --card:#ffffff;
  --text:#111;
  --accent:#2563eb;
}

body{
  margin:0;
  font-family:'Cairo',sans-serif;
  background:var(--bg);
  color:var(--text);
  transition:0.3s;
}

/* Header */
header{
  padding:20px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}
header h1{
  margin:0;
  font-size:26px;
}

/* زر Dark/Light */
button{
  cursor:pointer;
  border:none;
  padding:10px 16px;
  border-radius:10px;
  background:var(--accent);
  color:#fff;
  font-weight:bold;
  transition:0.3s;
}
button:hover{
  opacity:0.85;
}

/* Grid Layout */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:25px;
  padding:30px;
}

/* Card Style Glass + Hover */
.card{
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  padding:25px;
  border-radius:20px;
  background:rgba(255,255,255,0.05);
  backdrop-filter:blur(15px);
  -webkit-backdrop-filter:blur(15px);
  text-decoration:none;
  color:var(--text);
  font-weight:bold;
  font-size:18px;
  transition:0.4s;
  box-shadow:0 8px 20px rgba(0,0,0,0.3);
  text-align:center;
}

.card:hover{
  transform:translateY(-8px) scale(1.05);
  background:linear-gradient(135deg, #38bdf8, #0ea5e9);
  color:#fff;
  box-shadow:0 15px 35px rgba(0,0,0,0.5);
}

/* Inputs & Textarea */
input,textarea,select{
  width:100%;
  margin-top:10px;
  padding:10px;
  border-radius:8px;
  border:none;
  font-size:16px;
}

textarea{resize:none;}

/* Responsive Adjustments */
@media(max-width:600px){
  .grid{
    grid-template-columns:1fr;
    padding:15px;
  }
  header{
    flex-direction:column;
    gap:10px;
  }
  header h1{
    font-size:22px;
  }
}