:root {
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --ink-900: #111827;
  --ink-700: #374151;
  --ink-500: #6b7280;
  --ink-300: #d1d5db;
  --ink-100: #f3f4f6;
  --red-100: #fee2e2;
  --red-600: #dc2626;
  --amber-100: #fef3c7;
  --amber-700: #b45309;
  --blue-100: #dbeafe;
  --blue-700: #1d4ed8;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--ink-100);
  color: var(--ink-900);
  font-size: 15px;
}

a { color: var(--green-700); }

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: #fff;
  border-right: 1px solid var(--ink-300);
  flex-shrink: 0;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar .brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: 0 1.25rem 1rem;
  font-weight: 700;
  color: var(--green-700);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--ink-100);
  margin-bottom: .5rem;
}

.sidebar nav a {
  display: block;
  padding: .6rem 1.25rem;
  color: var(--ink-700);
  text-decoration: none;
  font-size: .92rem;
  border-left: 3px solid transparent;
}

.sidebar nav a:hover { background: var(--green-50); }
.sidebar nav a.active {
  background: var(--green-50);
  border-left-color: var(--green-600);
  color: var(--green-700);
  font-weight: 600;
}

.sidebar .facility-name {
  padding: 0 1.25rem;
  color: var(--ink-500);
  font-size: .78rem;
  margin-bottom: .75rem;
}

.main {
  flex: 1;
  min-width: 0;
  padding: 1.5rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: .75rem;
}

.topbar h1 {
  font-size: 1.3rem;
  margin: 0;
}

.userbox {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .85rem;
  color: var(--ink-500);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border: 1px solid var(--ink-300);
  background: #fff;
  color: var(--ink-900);
  padding: .5rem .9rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: .88rem;
  text-decoration: none;
  line-height: 1.2;
}

.btn:hover { background: var(--ink-100); }

.btn-primary {
  background: var(--green-600);
  border-color: var(--green-600);
  color: #fff;
}

.btn-primary:hover { background: var(--green-700); }

.btn-danger {
  background: #fff;
  border-color: var(--red-600);
  color: var(--red-600);
}

.btn-danger:hover { background: var(--red-100); }

.btn-sm { padding: .3rem .6rem; font-size: .78rem; }
.btn-block { width: 100%; justify-content: center; }

.card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.card h2, .card h3 { margin-top: 0; }

.grid {
  display: grid;
  gap: 1rem;
}

.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

.stat {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.1rem;
}

.stat .value { font-size: 1.7rem; font-weight: 700; color: var(--green-700); }
.stat .label { font-size: .8rem; color: var(--ink-500); margin-top: .15rem; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}

th, td {
  text-align: left;
  padding: .6rem .5rem;
  border-bottom: 1px solid var(--ink-100);
  vertical-align: middle;
}

th { color: var(--ink-500); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .02em; }

.table-wrap { overflow-x: auto; }

.badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .74rem;
  font-weight: 600;
}

.badge-waiting { background: var(--amber-100); color: var(--amber-700); }
.badge-called { background: var(--blue-100); color: var(--blue-700); }
.badge-in_progress { background: var(--blue-100); color: var(--blue-700); }
.badge-done { background: var(--green-100); color: var(--green-700); }
.badge-no_show { background: var(--red-100); color: var(--red-600); }
.badge-cancelled { background: var(--ink-100); color: var(--ink-500); }
.badge-booked { background: var(--ink-100); color: var(--ink-700); }
.badge-active { background: var(--green-100); color: var(--green-700); }
.badge-inactive { background: var(--ink-100); color: var(--ink-500); }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: .3rem; font-size: .85rem; font-weight: 600; color: var(--ink-700); }
.form-row { display: flex; gap: 1rem; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 180px; }

input[type=text], input[type=email], input[type=password], input[type=tel],
input[type=date], input[type=time], input[type=number], select, textarea {
  width: 100%;
  padding: .55rem .7rem;
  border: 1px solid var(--ink-300);
  border-radius: 8px;
  font-size: .9rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink-900);
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--green-500);
  outline-offset: 1px;
}

.checkbox-row { display: flex; align-items: center; gap: .5rem; }
.checkbox-row input { width: auto; }

.alert {
  padding: .75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .88rem;
}

.alert-success { background: var(--green-100); color: var(--green-700); }
.alert-error { background: var(--red-100); color: var(--red-600); }
.alert-info { background: var(--blue-100); color: var(--blue-700); }

.text-muted { color: var(--ink-500); }
.text-sm { font-size: .82rem; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.empty-state {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--ink-500);
}

.hamburger {
  display: none;
  background: #fff;
  border: 1px solid var(--ink-300);
  border-radius: 8px;
  padding: .4rem .6rem;
  font-size: 1.1rem;
  cursor: pointer;
}

@media (max-width: 800px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    z-index: 40;
    transform: translateX(-100%);
    transition: transform .2s ease;
    box-shadow: var(--shadow);
  }
  .sidebar.open { transform: translateX(0); }
  .hamburger { display: inline-flex; }
  .main { padding: 1rem; padding-top: 3.75rem; }
  .topbar { position: fixed; top: 0; left: 0; right: 0; background: #fff; padding: .75rem 1rem; z-index: 30; border-bottom: 1px solid var(--ink-300); margin: 0; }
  .sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 35; }
  .sidebar-backdrop.open { display: block; }
}