:root{
  --bg:#f3f6f8;
  --card:#ffffff;
  --line:#e4ebf1;
  --text:#102a2a;
  --muted:#5c6c7a;
  --primary:#1aa66a;
  --primary-dark:#128357;
  --danger:#c62828;
  --radius:18px;
  --shadow:0 10px 26px rgba(0,0,0,.05);
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:13px;
}

.topbar{
  height:74px;
  background:white;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 28px;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:22px;
  font-weight:800;
  color:#155f4d;
}

.brand-logo{
  width:42px;
  height:42px;
  border-radius:12px;
  background:#155f4d;
  color:white;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:bold;
}

.layout{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:24px;
  padding:24px;
}

.sidebar,
.page-card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.sidebar{
  padding:22px;
}

.nav{
  padding:13px 16px;
  border-radius:12px;
  margin-bottom:10px;
  cursor:pointer;
  transition:.15s;
  font-size:14px;
}

.nav:hover{
  background:#eef6f3;
}

.nav.active{
  background:var(--primary);
  color:white;
  font-weight:700;
}

.page-card{
  padding:26px;
}

.page-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:22px;
}

.page-title{
  font-size:22px;
  font-weight:800;
}

.tabs{
  display:flex;
  gap:10px;
  margin-bottom:22px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}

button{
  border:1px solid #dfe8ef;
  background:white;
  border-radius:12px;
  padding:9px 15px;
  font-size:12px;
  font-weight:700;
  cursor:pointer;
  transition:.15s;
}

button:hover{
  transform:translateY(-1px);
}

button.primary{
  background:var(--primary);
  color:white;
  border-color:var(--primary);
}

button.primary:hover{
  background:var(--primary-dark);
}

button.danger{
  color:var(--danger);
}

.actions{
  display:flex;
  justify-content:flex-end;
  gap:10px;
  margin-bottom:20px;
}

.filters{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
  margin-bottom:20px;
}

input,
select,
textarea{
  width:100%;
  height:42px;
  border:1px solid #d7e2ea;
  border-radius:12px;
  padding:0 14px;
  font-size:13px;
  background:white;
}

textarea{
  height:120px;
  padding-top:12px;
  resize:vertical;
}

input:focus,
select:focus,
textarea:focus{
  outline:none;
  border-color:#8ecfb3;
}

table{
  width:100%;
  border-collapse:collapse;
}

th{
  background:#f2f7f7;
  padding:13px;
  text-align:right;
  font-size:12px;
}

td{
  border-bottom:1px solid #e6edf2;
  padding:13px;
  font-size:13px;
}

.status-on{
  color:#1a7f4b;
  font-weight:700;
}

.status-off{
  color:var(--danger);
  font-weight:700;
}

.modal-backdrop{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.45);
  z-index:100;
  align-items:center;
  justify-content:center;
}

.modal{
  width:min(680px,92vw);
  background:white;
  border-radius:22px;
  overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}

.modal-header{
  padding:22px 26px;
  border-bottom:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:center;
}

.modal-title{
  font-size:20px;
  font-weight:800;
}

.modal-body{
  padding:26px;
}

.modal-footer{
  padding:18px 26px;
  border-top:1px solid var(--line);
  display:flex;
  gap:10px;
}

.grid-2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
}

label{
  display:block;
  margin-bottom:6px;
  font-weight:700;
  color:#4c596d;
}

.toast{
  position:fixed;
  bottom:24px;
  left:24px;
  background:#102a2a;
  color:white;
  padding:13px 18px;
  border-radius:14px;
  display:none;
  z-index:200;
  font-weight:700;
}

@media(max-width:1100px){
  .layout{
    grid-template-columns:1fr;
  }

  .filters{
    grid-template-columns:1fr 1fr;
  }
}

@media(max-width:700px){
  .filters,
  .grid-2{
    grid-template-columns:1fr;
  }

  .topbar{
    padding:0 18px;
  }

  .layout{
    padding:14px;
  }

  .page-card,
  .sidebar{
    padding:18px;
  }
}