:root{
  --font:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --primary:#2563EB; --primary-light:#EFF6FF; --primary-dark:#1D4ED8;
  --accent:#059669; --accent-light:#ECFDF5;
  --bg:#F3F5FA; --surface:#FFFFFF; --fg:#0F172A; --muted:#64748B; --muted-2:#94A3B8;
  --border:#E7EBF3; --danger:#DC2626; --danger-light:#FEF2F2; --warn:#D97706; --warn-light:#FFFBEB;
  --info:#0284C7; --info-light:#F0F9FF; --purple:#7C3AED; --purple-light:#F5F3FF;
  --radius-lg:20px; --radius-md:14px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(15,23,42,.06);
  --shadow-sm:0 1px 3px rgba(15,23,42,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--fg);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#CBD5E1;border-radius:8px}
::-webkit-scrollbar-track{background:transparent}
a{text-decoration:none;color:inherit}
button{font-family:var(--font);cursor:pointer}
input,select,textarea{font-family:var(--font);font-size:14px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

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

/* ---------- SIDEBAR ---------- */
.sidebar{width:258px;flex-shrink:0;background:var(--surface);margin:14px 0 14px 14px;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px 14px;display:flex;flex-direction:column;height:calc(100vh - 28px);position:sticky;top:14px}
.brand{display:flex;align-items:center;gap:10px;padding:4px 8px 20px 8px}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(145deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:17px;flex-shrink:0}
.brand-name{font-weight:800;font-size:15.5px;color:var(--fg);letter-spacing:-.2px}
.brand-sub{font-size:11.5px;color:var(--muted-2);font-weight:600}
.nav{display:flex;flex-direction:column;gap:3px;overflow-y:auto;flex:1}
.nav-item{display:flex;align-items:center;gap:11px;padding:9px 10px;border-radius:12px;color:var(--muted);font-weight:600;font-size:13.5px;border:none;background:transparent;width:100%;text-align:left;transition:background .15s ease,color .15s ease;position:relative}
.nav-item:hover{background:#F5F7FB;color:var(--fg)}
.nav-item.active{background:var(--primary-light);color:var(--primary-dark)}
.nav-badge{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.nav-badge svg{width:16px;height:16px}
.nav-label{flex:1}
.nav-count{background:#EF4444;color:#fff;font-size:10.5px;font-weight:700;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}
.sidebar-foot{padding:10px 8px 0 8px;border-top:1px solid var(--border);margin-top:10px}
.foot-user{display:flex;align-items:center;gap:9px;padding-top:12px}
.foot-avatar{width:34px;height:34px;border-radius:10px;background:var(--primary-light);color:var(--primary);font-weight:700;font-size:12.5px;display:flex;align-items:center;justify-content:center}
.foot-name{font-size:12.5px;font-weight:700;color:var(--fg)}
.foot-role{font-size:11px;color:var(--muted-2)}
.logout-link{display:block;margin-top:10px;font-size:12px;font-weight:700;color:var(--danger)}

/* ---------- MAIN ---------- */
.main{flex:1;min-width:0;padding:14px;display:flex;flex-direction:column;gap:14px}
.topbar{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:14px 20px;display:flex;align-items:center;gap:16px}
.page-title{font-size:19px;font-weight:800;letter-spacing:-.3px}
.page-sub{font-size:12px;color:var(--muted-2);font-weight:600;margin-top:2px}
.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--border);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.icon-btn:hover{background:var(--bg)}
.topbar-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.content{flex:1;min-width:0}

.card{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:20px}
.grid{display:grid;gap:14px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:2fr 1fr}
@media(max-width:1200px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}}

.stat-card{padding:18px;display:flex;flex-direction:column;gap:10px}
.stat-top{display:flex;align-items:center;justify-content:space-between}
.stat-icon{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center}
.stat-icon svg{width:18px;height:18px}
.stat-trend{font-size:11.5px;font-weight:700;padding:3px 8px;border-radius:20px;display:inline-flex;align-items:center;gap:3px}
.trend-up{background:var(--accent-light);color:#047857}
.trend-down{background:var(--danger-light);color:var(--danger)}
.stat-value{font-size:26px;font-weight:800;letter-spacing:-.5px}
.stat-label{font-size:12.5px;color:var(--muted);font-weight:600}

.section-title{font-size:15.5px;font-weight:800;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}

table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted-2);font-weight:700;padding:0 12px 10px 12px;border-bottom:1px solid var(--border)}
td{padding:13px 12px;border-bottom:1px solid var(--border);font-size:13.5px;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr{transition:background .12s}

.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:20px;font-size:11.5px;font-weight:700}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex-shrink:0}
.b-green{background:var(--accent-light);color:#047857}
.b-blue{background:var(--primary-light);color:var(--primary-dark)}
.b-amber{background:var(--warn-light);color:var(--warn)}
.b-red{background:var(--danger-light);color:var(--danger)}
.b-gray{background:#F1F5F9;color:var(--muted)}
.b-purple{background:var(--purple-light);color:var(--purple)}

.avatar-circle{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0;background:var(--primary-light);color:var(--primary-dark)}
.row-flex{display:flex;align-items:center;gap:10px}
.cell-name{font-weight:700;font-size:13.5px;color:var(--fg)}
.cell-sub{font-size:11.5px;color:var(--muted-2);font-weight:500;margin-top:1px}

.btn-primary{background:var(--primary);color:#fff;border:none;padding:10px 16px;border-radius:11px;font-weight:700;font-size:13px;display:inline-flex;align-items:center;gap:7px;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{padding:9px 14px;border-radius:11px;border:1px solid var(--border);background:#fff;font-weight:700;font-size:13px;color:var(--fg);display:inline-flex;align-items:center;gap:6px}
.btn-secondary:hover{background:var(--bg)}
.btn-danger{padding:9px 14px;border-radius:11px;border:none;background:var(--danger-light);color:var(--danger);font-weight:700;font-size:13px}
.btn-danger:hover{background:#FEE2E2}

.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.toolbar input[type=text],.toolbar input[type=search]{padding:9px 13px;border-radius:10px;border:1px solid var(--border);background:var(--bg);min-width:220px}
.toolbar select{padding:9px 13px;border-radius:10px;border:1px solid var(--border);background:var(--bg);font-weight:600;color:var(--fg)}

.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-field label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:6px}
.form-field input,.form-field select,.form-field textarea{width:100%;padding:10px 13px;border-radius:10px;border:1px solid var(--border);background:var(--bg);font-family:var(--font)}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{background:#fff;border-color:var(--primary)}

.alert{padding:12px 16px;border-radius:12px;font-weight:600;font-size:13px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.alert-error{background:var(--danger-light);color:var(--danger)}
.alert-success{background:var(--accent-light);color:#047857}

.app-footer{text-align:center;padding:14px;font-size:12px;color:var(--muted-2);font-weight:600}

.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:
  radial-gradient(circle at 20% 20%, rgba(37,99,235,.10), transparent 45%),
  radial-gradient(circle at 80% 80%, rgba(5,150,105,.08), transparent 45%),
  var(--bg)}
.login-card{background:#fff;border-radius:var(--radius-lg);box-shadow:0 24px 60px rgba(15,23,42,.10),var(--shadow);padding:36px;width:100%;max-width:400px}
.login-card h1{font-size:19px;margin-bottom:4px;letter-spacing:-.3px}
.login-card p{color:var(--muted-2);font-size:12.5px;margin-bottom:20px;line-height:1.6}
.login-card .form-field{margin-bottom:14px}
.login-card button{width:100%;padding:12px;margin-top:6px;justify-content:center}

.empty-state{text-align:center;padding:50px 20px;color:var(--muted-2)}

.room-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.room-tile{border-radius:13px;padding:12px 10px;border:1px solid var(--border)}
.room-num{font-weight:800;font-size:14.5px}
.room-type-lbl{font-size:10.5px;color:var(--muted);font-weight:600;margin-top:1px}
.legend{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.legend-item{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;color:var(--muted)}
.legend-dot{width:9px;height:9px;border-radius:3px}

code{background:#F1F5F9;padding:2px 6px;border-radius:6px;font-size:12px}
hr{border:none;border-top:1px solid var(--border)}

@media(max-width:960px){
  .sidebar{display:none}
  .grid-4,.grid-3{grid-template-columns:1fr 1fr}
}