:root{--color-primary:#1a73e8;--color-primary-hover:#1557b0;--color-danger:#d93025;--color-danger-hover:#b3261e;--color-success:#188038;--color-warning:#f9ab00;--color-bg:#f8f9fa;--color-sidebar:#1e293b;--color-sidebar-hover:#334155;--color-sidebar-active:#3b82f6;--color-sidebar-text:#e2e8f0;--color-border:#dadce0;--color-text:#202124;--color-text-secondary:#5f6368;--radius:6px;--shadow:0 1px 3px #0000001a;--shadow-lg:0 4px 12px #00000026}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:var(--color-text);background:var(--color-bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border-radius:var(--radius);border:none;padding:8px 16px;font-family:inherit;font-size:14px;transition:background-color .2s}input,select,textarea{border:1px solid var(--color-border);border-radius:var(--radius);width:100%;padding:8px 12px;font-family:inherit;font-size:14px;transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 2px #1a73e833}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--color-border);padding:12px 16px}th{color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:13px;font-weight:600}tr:hover{background-color:#00000005}.toast-container{z-index:9999;flex-direction:column;gap:8px;display:flex;position:fixed;bottom:24px;right:24px}.toast{border-radius:var(--radius);color:#fff;box-shadow:var(--shadow-lg);min-width:200px;padding:12px 20px;font-size:14px;animation:.3s toast-in}.toast-success{background:var(--color-success)}.toast-error{background:var(--color-danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.loading-container{justify-content:center;align-items:center;padding:80px 0;display:flex}.loading-spinner{border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.sidebar{background:var(--color-sidebar);width:220px;color:var(--color-sidebar-text);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-brand{border-bottom:1px solid #ffffff1a;padding:20px 24px;font-size:17px;font-weight:600}.sidebar-nav{flex-direction:column;padding:12px 0;display:flex}.sidebar-link{color:var(--color-sidebar-text);padding:12px 24px;font-size:15px;text-decoration:none;transition:background-color .15s}.sidebar-link:hover{background:var(--color-sidebar-hover);text-decoration:none}.sidebar-link.active{background:var(--color-sidebar-active);font-weight:500}.header{border-bottom:1px solid var(--color-border);background:#fff;justify-content:space-between;align-items:center;height:56px;padding:0 32px;display:flex}.header-right{align-items:center;gap:16px;display:flex}.header-user{color:var(--color-text-secondary);font-size:14px}.login-page{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{box-shadow:var(--shadow-lg);background:#fff;border-radius:12px;width:400px;max-width:90vw;padding:40px}.login-card h1{text-align:center;margin-bottom:8px;font-size:24px;font-weight:600}.login-subtitle{text-align:center;color:var(--color-text-secondary);margin-bottom:32px}.login-error{color:var(--color-danger);border-radius:var(--radius);background:#fce8e6;margin-bottom:16px;padding:10px 14px;font-size:14px}.login-btn{width:100%;margin-top:8px;padding:12px;font-size:16px}.login-btn:disabled{opacity:.7;cursor:not-allowed}.table-wrapper{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;overflow-x:auto}.th-actions,.td-actions{text-align:right;white-space:nowrap}.td-empty{text-align:center;color:var(--color-text-secondary);padding:48px 16px;font-size:15px}.modal-overlay{z-index:9998;background:#0006;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{width:420px;max-width:90vw;box-shadow:var(--shadow-lg);background:#fff;border-radius:12px;padding:32px}.modal-title{margin-bottom:12px;font-size:18px;font-weight:600}.modal-message{color:var(--color-text-secondary);margin-bottom:24px;font-size:14px;line-height:1.6}.modal-actions{justify-content:flex-end;gap:12px;display:flex}.error-message{color:var(--color-danger);border-radius:var(--radius);background:#fce8e6;justify-content:space-between;align-items:center;margin-bottom:16px;padding:12px 16px;font-size:14px;display:flex}.status-badge{border-radius:12px;padding:2px 10px;font-size:13px;font-weight:500;display:inline-block}.badge-pending{color:#1967d2;background:#e8f0fe}.badge-confirmed{color:#e8710a;background:#fef7e0}.badge-shipped{color:#7b1fa2;background:#f3e8fd}.badge-delivered{color:#137333;background:#e6f4ea}.badge-cancelled{color:#c5221f;background:#fce8e6}.order-item-row{align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.order-item-subtotal{color:var(--color-text-secondary);white-space:nowrap;padding:8px 0;font-size:14px}.order-total{text-align:right;border-top:2px solid var(--color-border);margin-top:16px;padding-top:16px;font-size:18px;font-weight:600}.order-info{flex-direction:column;gap:12px;display:flex}.order-info-row{align-items:center;gap:12px;display:flex}.order-info-label{color:var(--color-text-secondary);min-width:80px;font-weight:500}.app-layout{min-height:100vh;display:flex}.app-main{flex-direction:column;flex:1;margin-left:220px;display:flex}.app-content{flex:1;padding:24px 32px}.page-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.page-header h1{font-size:22px;font-weight:600}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-hover)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover{background:var(--color-danger-hover)}.btn-secondary{color:var(--color-text);background:#e8eaed}.btn-secondary:hover{background:#dadce0}.btn-sm{padding:4px 10px;font-size:13px}.form-group{margin-bottom:16px}.form-label{margin-bottom:4px;font-size:14px;font-weight:500;display:block}.form-error{color:var(--color-danger);margin-top:4px;font-size:13px}.form-actions{gap:12px;margin-top:24px;display:flex}.card{border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:24px}.form-card{max-width:600px;margin:0 auto}.checkbox-group{align-items:center;gap:8px;display:flex}.checkbox-group input[type=checkbox]{width:auto}