:root{
  --bg:#f4f7f8;
  --card:#ffffff;
  --text:#18302b;
  --muted:#5c6b66;
  --accent:#0f766e;
  --dark:#163430;
  --border:#d8e3e0;
  --shadow:0 14px 35px rgba(0,0,0,.08);
}

*{
  box-sizing:border-box;
}

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

.app-shell{
  max-width:1400px;
  margin:0 auto;
  padding:20px;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  margin-bottom:20px;
  background:var(--card);
  border-radius:18px;
  padding:20px;
  box-shadow:var(--shadow);
}

.topbar h1{
  margin:0;
  font-size:28px;
}

.topbar p{
  margin:6px 0 0;
  color:var(--muted);
}

.topbar-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.btn{
  border:none;
  border-radius:12px;
  padding:12px 16px;
  cursor:pointer;
  font-weight:700;
}

.btn-primary{
  background:var(--accent);
  color:#fff;
}

.btn-outline{
  background:#fff;
  color:var(--accent);
  border:1px solid var(--accent);
}

.btn-dark{
  background:var(--dark);
  color:#fff;
}

.hidden{
  display:none !important;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-bottom:20px;
}

.stat-card{
  background:var(--card);
  border-radius:18px;
  padding:20px;
  box-shadow:var(--shadow);
}

.stat-label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:8px;
}

.stat-value{
  font-size:26px;
}

.panel{
  background:var(--card);
  border-radius:18px;
  padding:20px;
  box-shadow:var(--shadow);
}

.panel-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  margin-bottom:18px;
}

.panel-head h2{
  margin:0;
}

.search-input{
  width:320px;
  max-width:100%;
  padding:12px 14px;
  border:1px solid var(--border);
  border-radius:12px;
  outline:none;
}

.table-wrap{
  width:100%;
  overflow:auto;
}

.bookings-table{
  width:100%;
  border-collapse:collapse;
  min-width:1000px;
}

.bookings-table th,
.bookings-table td{
  padding:12px;
  border-bottom:1px solid var(--border);
  text-align:left;
  font-size:14px;
  vertical-align:top;
}

.bookings-table th{
  background:#edf6f4;
  color:var(--dark);
}

.empty-cell{
  text-align:center;
  padding:30px !important;
  color:var(--muted);
}

.status-badge{
  display:inline-block;
  background:#e6f7f1;
  color:#0f766e;
  padding:6px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
}

@media (max-width: 900px){
  .topbar{
    flex-direction:column;
    align-items:flex-start;
  }

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

  .panel-head{
    flex-direction:column;
    align-items:stretch;
  }

  .bookings-table{
    min-width:100%;
  }

  .bookings-table thead{
    display:none;
  }

  .bookings-table,
  .bookings-table tbody,
  .bookings-table tr,
  .bookings-table td{
    display:block;
    width:100%;
  }

  .bookings-table tr{
    border:1px solid var(--border);
    border-radius:14px;
    margin-bottom:14px;
    padding:10px;
    background:#fff;
  }

  .bookings-table td{
    border:none;
    padding:8px 10px;
  }

  .bookings-table td::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--muted);
    margin-bottom:4px;
    font-weight:700;
  }
}