:root{--primary: #1a73e8;--primary-dark: #1557b0;--primary-light: #e8f0fe;--success: #34a853;--warning: #fbbc04;--danger: #ea4335;--info: #4285f4;--text-primary: #202124;--text-secondary: #5f6368;--text-muted: #80868b;--bg-primary: #ffffff;--bg-secondary: #f8f9fa;--bg-tertiary: #f1f3f4;--border-color: #dadce0;--border-radius: 8px;--border-radius-lg: 12px;--shadow-sm: 0 1px 2px rgba(60,64,67,.1);--shadow-md: 0 1px 3px rgba(60,64,67,.15), 0 4px 8px rgba(60,64,67,.15);--shadow-lg: 0 1px 3px rgba(60,64,67,.15), 0 8px 16px rgba(60,64,67,.15);--sidebar-width: 260px;--header-height: 64px}*{margin:0;padding:0;box-sizing:border-box}html,body{font-family:Roboto,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans Thai,sans-serif;font-size:14px;line-height:1.5;color:var(--text-primary);background-color:var(--bg-secondary);min-height:100vh;-webkit-font-smoothing:antialiased}#app{min-height:100vh}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--bg-primary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border-color)}.sidebar-logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-primary)}.sidebar-logo-icon{font-size:28px}.sidebar-logo-text{font-size:18px;font-weight:500}.sidebar-nav{flex:1;padding:12px;overflow-y:auto}.nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--border-radius);color:var(--text-secondary);text-decoration:none;cursor:pointer;transition:all .2s;margin-bottom:4px}.nav-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-item.active{background:var(--primary-light);color:var(--primary);font-weight:500}.nav-item-icon{font-size:20px;width:24px;text-align:center}.sidebar-footer{padding:16px;border-top:1px solid var(--border-color)}.tenant-selector{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);background:var(--bg-secondary);font-size:14px;cursor:pointer}.main-content{flex:1;margin-left:var(--sidebar-width);min-height:100vh}.header{height:var(--header-height);background:var(--bg-primary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:50}.hamburger{display:none}.header-title{font-size:20px;font-weight:500}.header-actions{display:flex;align-items:center;gap:16px}.user-menu{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:var(--border-radius);cursor:pointer;transition:background .2s}.user-menu:hover{background:var(--bg-tertiary)}.user-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:500}.page-content{padding:24px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-title{font-size:24px;font-weight:500}.card{background:var(--bg-primary);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.card-header{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}.card-title{font-size:16px;font-weight:500}.card-body{padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:24px}.stat-card{background:var(--bg-primary);border-radius:var(--border-radius-lg);padding:20px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.stat-icon{font-size:32px;margin-bottom:12px}.stat-value{font-size:28px;font-weight:600;margin-bottom:4px}.stat-label{color:var(--text-secondary);font-size:13px}.stat-card.blue{border-left:4px solid var(--info)}.stat-card.green{border-left:4px solid var(--success)}.stat-card.orange{border-left:4px solid var(--warning)}.stat-card.red{border-left:4px solid var(--danger)}.table-container{overflow-x:auto}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-color)}.data-table th{background:var(--bg-secondary);font-weight:500;color:var(--text-secondary);font-size:12px;text-transform:uppercase;letter-spacing:.5px}.data-table tr:hover{background:var(--bg-secondary)}.status-badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:12px;font-size:12px;font-weight:500}.status-badge.confirmed{background:#e6f4ea;color:#1e8e3e}.status-badge.cancelled{background:#fce8e6;color:#d93025}.status-badge.completed{background:#e8f0fe;color:#1967d2}.status-badge.pending{background:#fef7e0;color:#f9ab00}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--border-radius);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background:var(--border-color)}.btn-sm{padding:6px 12px;font-size:13px}.btn-icon{padding:8px;background:transparent;color:var(--text-secondary)}.btn-icon:hover{background:var(--bg-tertiary);color:var(--text-primary)}.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:6px;font-weight:500;color:var(--text-secondary)}.form-input,.form-select{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:14px;transition:border-color .2s}.form-input:focus,.form-select:focus{outline:none;border-color:var(--primary)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%)}.login-card{background:#fff;padding:40px;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg);width:100%;max-width:400px}.login-header{text-align:center;margin-bottom:32px}.login-logo{font-size:48px;margin-bottom:16px}.login-title{font-size:24px;font-weight:500;margin-bottom:8px}.login-subtitle{color:var(--text-secondary)}.login-form .btn{width:100%;margin-top:8px}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px}.spinner{width:40px;height:40px;border:3px solid var(--border-color);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message{background:#fce8e6;color:#d93025;padding:12px 16px;border-radius:var(--border-radius);margin-bottom:16px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.empty-state-icon{font-size:48px;margin-bottom:16px;opacity:.5}@media(max-width:768px){.sidebar{transform:translate(-100%);transition:transform .3s}.sidebar.open{transform:translate(0)}.hamburger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:transparent;font-size:20px;cursor:pointer;margin-right:12px}.header-title{flex:1}.main-content{margin-left:0}.stats-grid{grid-template-columns:1fr}}