body{margin:0;font-family:Arial;background:#f4fff7}
.header{background:#1f8f2e;color:#fff;padding:15px}
.sidebar{width:220px;background:#1f8f2e;color:#fff;height:100vh;position:fixed}
.sidebar a{display:block;color:#fff;padding:12px;text-decoration:none}
.sidebar a:hover{background:#166c22}
.main{margin-left:220px;padding:20px}
.card{background:#fff;padding:15px;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,.1)}