body { font-family: Arial, sans-serif; background:#f0f2f5; margin:0; padding:0; }
.header { background:#111827; color:white; padding:12px 16px; display:flex; align-items:center; justify-content:space-between; }
.container { max-width:1000px; margin:30px auto; padding:0 12px; }
.card { background:white; padding:16px; border-radius:8px; box-shadow: 0 2px 8px rgba(0,0,0,0.06); margin-bottom:16px; }
.btn { display:inline-block; padding:8px 12px; border-radius:6px; background:#2563EB; color:white; text-decoration:none; border:none; cursor:pointer;}
.form-control { width:100%; padding:8px; margin:6px 0; border-radius:6px; border:1px solid #ddd; box-sizing:border-box;}
.post { border-bottom:1px solid #f1f1f1; padding:12px 0; }
.small { font-size:13px; color:#6b7280; }