.calendar-card{
  width:100%;
  height:100%;
  min-height:420px;
  padding:22px;
  border-radius:34px;
  position:relative;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  background:
    linear-gradient(
      145deg,
      rgba(176,138,92,.92),
      rgba(122,90,58,.90)
    );
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: 0 20px 40px rgba(176,138,92,.24);
}
.calendar-calculator-btn{
  width:100%;
  height:46px;
  margin-top:auto;
  border:none;
  outline:none;
  border-radius:16px;
  background:#ffffff;
  color:#b08a5c;
  font-size:18px;
  font-weight:800;
  cursor:pointer;
  transition:
    transform .18s ease,
    background .18s ease,
    box-shadow .18s ease;
}
.calendar-calculator-btn:hover{
  transform:translateY(-1px);
  box-shadow: 0 10px 20px rgba(0,0,0,.12);
}
.calendar-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
  position:relative;
  z-index:1;
}
.calendar-month-year{
  color:#fff;
  font-size:20px;
  font-weight:700;
}
.calendar-next-btn{
  width:42px;
  height:42px;
  border:none;
  outline:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(255,255,255,.18);
  transition:.25s ease;
}
.calendar-next-btn:hover{
  transform:translateY(-2px);
  background:rgba(255,255,255,.25);
}
.calendar-next-btn:active{
  transform:scale(.95);
}
.calendar-next-btn svg{
  width:22px;
  height:22px;
  stroke:#fff;
  stroke-width:2.2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.calendar-days{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  margin-bottom:14px;
  position:relative;
  z-index:1;
}
.calendar-days span{
  text-align:center;
  color:rgba(255,255,255,.8);
  font-size:13px;
  font-weight:700;
}
.calendar-dates{
  display:grid;
  grid-template-columns:repeat(7,1fr);
  gap:8px;
  position:relative;
  z-index:1;
}
.calendar-date-item{
  aspect-ratio:1/1;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:.2s ease;
}
.calendar-date-item:hover{
  background:rgba(255,255,255,.12);
}
.calendar-date-item.active{
  border:2px solid rgba(255,255,255,.95);
  background:rgba(255,255,255,.16);
  box-shadow:0 6px 16px rgba(255,255,255,.14);
}
.date-filter-input{
  position:absolute;
  opacity:0;
  pointer-events:none;
}
@media(max-width:768px){
  .calendar-card{
    display:block; /* hapus flex */
    min-height:auto;
  }

  .calendar-calculator-btn{
    margin-top:5%;
  }
  .calendar-month-year{
    font-size:18px;
  }
  .calendar-days{
    margin-bottom:10px;
  }
  .calendar-dates{
    grid-template-columns:
      repeat(7,1fr);
    grid-auto-rows:1fr;
  }
  .calendar-date-item{
    font-size:13px;
  }
}