:root{
  --bg:#f4f7f8;
  --card:#ffffff;
  --text:#17313a;
  --muted:#6b7f86;
  --accent:#0f766e;
  --accent-2:#14b8a6;
  --border:#dbe5e8;
  --danger:#b42318;
  --shadow:0 18px 45px rgba(15, 118, 110, 0.08);
  --radius:20px;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:Arial, sans-serif;
  background:linear-gradient(180deg,#eef6f6 0%, #f8fbfb 100%);
  color:var(--text);
}

.app-shell{
  max-width:1400px;
  margin:0 auto;
  padding:24px;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:24px;
  padding:20px 22px;
  box-shadow:var(--shadow);
  margin-bottom:22px;
}

.brand-text h1{
  margin:0;
  font-size:1.7rem;
  color:var(--accent);
}

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

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

.btn{
  border:none;
  border-radius:14px;
  padding:12px 16px;
  cursor:pointer;
  font-weight:700;
  font-size:14px;
  transition:.2s ease;
}

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

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

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

.btn-dark{
  background:#17313a;
  color:#fff;
}

.hidden{
  display:none !important;
}

.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-bottom:22px;
}

.stat-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow);
}

.stat-label{
  display:block;
  color:var(--muted);
  font-size:13px;
  margin-bottom:10px;
}

.stat-value{
  font-size:1.8rem;
  color:var(--accent);
}

.panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:26px;
  padding:20px;
  box-shadow:var(--shadow);
}

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

.panel-head h2{
  margin:0;
}

.panel-subtitle{
  margin:6px 0 0;
  color:var(--muted);
  font-size:14px;
}

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

.search-input:focus{
  border-color:var(--accent);
}

.table-wrap{
  overflow:auto;
  border:1px solid var(--border);
  border-radius:18px;
}

.bookings-table{
  width:100%;
  border-collapse:collapse;
  min-width:1200px;
}

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

.bookings-table th{
  background:#0f766e;
  color:#fff;
  position:sticky;
  top:0;
  z-index:1;
}

.bookings-table tbody tr:nth-child(even){
  background:#f8fbfb;
}

.empty-cell,
.empty-state{
  text-align:center;
  color:var(--muted);
  padding:24px;
}

.status-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  padding:7px 10px;
  font-size:12px;
  font-weight:700;
  background:#e7f7f5;
  color:var(--accent);
}

.mobile-cards{
  display:none;
}

.booking-card-mobile{
  background:#fff;
  border:1px solid var(--border);
  border-radius:18px;
  padding:16px;
  margin-bottom:14px;
}

.booking-card-mobile h3{
  margin:0 0 10px;
  color:var(--accent);
  font-size:1rem;
}

.booking-card-mobile .meta{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin-bottom:12px;
}

.booking-card-mobile .meta div{
  background:#f6fbfb;
  border-radius:12px;
  padding:10px;
}

.booking-card-mobile .meta span{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-bottom:4px;
}

.booking-card-mobile .full-row{
  background:#f6fbfb;
  border-radius:12px;
  padding:10px;
  margin-bottom:10px;
}

@media (max-width: 980px){
  .stats-grid{
    grid-template-columns:1fr;
  }

  .panel-head{
    flex-direction:column;
  }

  .search-input{
    width:100%;
  }

  .table-wrap{
    display:none;
  }

  .mobile-cards{
    display:block;
  }
}

@media (max-width: 640px){
  .app-shell{
    padding:14px;
  }

  .topbar{
    padding:16px;
    border-radius:18px;
  }

  .brand-text h1{
    font-size:1.35rem;
  }

  .booking-card-mobile .meta{
    grid-template-columns:1fr;
  }
}

.btn-primary{
  background: linear-gradient(135deg,#0f766e,#14b8a6);
  color:white;
  border:none;
  box-shadow:0 6px 15px rgba(20,184,166,0.3);
}

.btn-primary:hover{
  transform:scale(1.05);
}