:root{--primary: #4f46e5;--danger: #dc2626;--text: #1e293b;--muted: #64748b;--border: #e2e8f0;--bg: #f8fafc;--card: #ffffff}*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background-color:var(--bg);color:var(--text);line-height:1.5}.app-container{display:flex;min-height:100vh}.sidebar{width:260px;background-color:#1e293b;color:#fff;display:flex;flex-direction:column;transition:width .25s ease,transform .25s ease;z-index:100;flex-shrink:0}.app-container.sidebar-collapsed .sidebar{width:70px}.app-container.sidebar-collapsed .nav-label,.app-container.sidebar-collapsed .sidebar-text{display:none}.app-container.sidebar-collapsed .sidebar-header{padding:16px 10px;justify-content:center}.app-container.sidebar-collapsed .sidebar-brand{justify-content:center}.app-container.sidebar-collapsed .nav-item{justify-content:center;padding:12px}.sidebar-header{padding:18px 16px;border-bottom:1px solid #334155;display:flex;align-items:center;justify-content:space-between}.sidebar-brand{display:flex;align-items:center;gap:10px;overflow:hidden}.sidebar-logo{font-size:1.4rem;flex-shrink:0}.sidebar-title{font-size:1.1rem;font-weight:700;color:#fff;white-space:nowrap}.sidebar-subtitle{font-size:.8rem;color:#94a3b8;white-space:nowrap}.toggle-sidebar-btn{background:#334155;color:#94a3b8;border:none;border-radius:6px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;font-size:.85rem;transition:all .2s}.toggle-sidebar-btn:hover{background:#475569;color:#fff}.sidebar-nav{display:flex;flex-direction:column;padding:16px 12px;gap:6px;flex:1;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:10px 14px;color:#cbd5e1;text-decoration:none;border-radius:8px;font-weight:500;transition:all .2s;white-space:nowrap}.nav-icon{font-size:1.2rem;flex-shrink:0;width:24px;text-align:center}.nav-item:hover{background-color:#334155;color:#fff}.nav-item.active{background-color:var(--primary);color:#fff}.logout-btn-top{position:fixed;top:16px;right:24px;z-index:250;padding:9px 16px;background:#fff;border:1px solid var(--border);color:var(--danger);border-radius:8px;cursor:pointer;font-weight:600;font-size:.85rem;display:flex;align-items:center;gap:8px;box-shadow:0 2px 8px #00000014;transition:all .2s}.logout-btn-top:hover{background:#fef2f2;border-color:#fecaca}.logout-btn-mobile{display:none;margin-left:auto;background:#334155;color:#f87171;border:none;border-radius:6px;width:38px;height:38px;font-size:1.1rem;cursor:pointer;align-items:center;justify-content:center}.mobile-topbar{display:none;background-color:#1e293b;color:#fff;padding:12px 16px;align-items:center;gap:12px;border-bottom:1px solid #334155;position:sticky;top:0;z-index:90}.menu-btn{background:#334155;color:#fff;border:none;border-radius:6px;width:38px;height:38px;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center}.mobile-title{font-size:1.1rem;font-weight:700}.sidebar-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;z-index:150;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.main-content{flex:1;padding:68px 32px 32px;overflow-y:auto;min-width:0}@media (max-width: 768px){.app-container{flex-direction:column}.mobile-topbar{display:flex}.logout-btn-top{display:none}.logout-btn-mobile{display:flex}.sidebar{position:fixed;top:0;left:0;bottom:0;width:260px!important;transform:translate(-100%);z-index:200;box-shadow:4px 0 15px #0000004d}.sidebar.mobile-open{transform:translate(0)}.main-content{padding:16px}}.header{margin-bottom:24px;display:flex;justify-content:space-between;align-items:center}.header h1{font-size:1.75rem;font-weight:700;color:var(--text)}.card{background:var(--card);border-radius:12px;box-shadow:0 1px 3px #0000000d,0 1px 2px #0000001a;padding:20px;border:1px solid var(--border)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:28px}.stat-card{background:var(--card);padding:20px;border-radius:12px;border:1px solid var(--border)}.stat-card .label{font-size:.875rem;color:var(--muted);font-weight:500}.stat-card .value{font-size:1.75rem;font-weight:700;margin-top:8px;color:var(--text)}.btn{padding:8px 16px;border-radius:8px;border:none;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:.875rem;transition:opacity .2s}.btn:hover{opacity:.9}.btn-primary{background:var(--primary);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-sm{padding:4px 10px;font-size:.75rem}.badge{padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600;display:inline-block}.badge-blue{background:#e0e7ff;color:#3730a3}.badge-green{background:#dcfce7;color:#166534}.badge-yellow{background:#fef9c3;color:#854d0e}.badge-red{background:#fee2e2;color:#991b1b}.badge-gray{background:#f1f5f9;color:#475569}.table-container{overflow-x:auto;background:var(--card);border-radius:12px;border:1px solid var(--border)}table{width:100%;border-collapse:collapse;text-align:left}th,td{padding:14px 18px;border-bottom:1px solid var(--border);font-size:.875rem}th{background:#f8fafc;color:var(--muted);font-weight:600}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--card);border-radius:12px;width:100%;max-width:550px;max-height:90vh;overflow-y:auto;padding:24px}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px;font-size:.9rem}.tabs{display:flex;gap:12px;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:8px}.tab{padding:8px 16px;background:transparent;border:none;font-weight:600;color:var(--muted);cursor:pointer;border-radius:6px}.tab.active{background:#e0e7ff;color:var(--primary)}.rooms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.progress-bar{height:8px;background:#e2e8f0;border-radius:4px;overflow:hidden;margin:10px 0}.progress-fill{height:100%;transition:width .3s}.login-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#1e293b}.login-card{background:#fff;padding:40px;border-radius:16px;width:100%;max-width:400px;box-shadow:0 10px 25px #0003}.month-badge{width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;text-align:center}