body{font-family:Arial;background:#e8f5e9;margin:0;}
header{background:#2e7d32;color:white;padding:20px;text-align:center;}
.card{background:white;margin:20px;padding:15px;border-radius:8px;box-shadow:0 2px 6px #0003;}
button{background:#2e7d32;color:white;padding:8px 14px;border:none;border-radius:4px;margin-top:5px;cursor:pointer;}
input,select{padding:8px;margin:5px 0;width:100%;}
ul{list-style:none;padding:0;}

.tabs{display:flex;gap:10px;margin-bottom:10px;}
.tab{background:#4caf50;padding:6px 10px;border-radius:4px;color:white;cursor:pointer;}

.calendar-grid{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:7px;
}
.day-box{
  background:white;
  padding:10px;
  border-radius:6px;
  min-height:90px;
  box-shadow:0 1px 4px #0002;
  text-align:left;
}
.day-date{
  font-weight:bold;
  color:#2e7d32;
}
.entry{
  font-size:12px;
  background:#c8e6c9;
  margin-top:4px;
  padding:3px 5px;
  border-radius:4px;
}