:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #eff6ff;--color-primary-border: #bfdbfe;--color-bg: #f1f5f9;--color-surface: #ffffff;--color-border: #e2e8f0;--color-border-strong: #cbd5e1;--color-text: #0f172a;--color-text-muted: #64748b;--color-text-subtle: #94a3b8;--color-success-bg: #f0fdf4;--color-success-text: #15803d;--color-success-border: #bbf7d0;--color-warning-bg: #fffbeb;--color-warning-text: #b45309;--color-warning-border: #fde68a;--color-danger-bg: #fef2f2;--color-danger-text: #b91c1c;--color-danger-border: #fecaca;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);--shadow-md: 0 4px 12px rgba(0,0,0,.08);--color-employee-accent: #2563eb;--color-employee-tint: #eff6ff;--color-admin-accent: #7c3aed;--color-admin-tint: #f5f3ff;--color-admin-border: #ddd6fe;--sidebar-width: 220px;--sidebar-bg: #1e293b;--sidebar-bg-hover: #334155;--sidebar-bg-active: #2563eb;--sidebar-text: #94a3b8;--sidebar-text-active: #ffffff;--sidebar-border: #334155;--navbar-height: 56px;--font-size-xs: 11px;--font-size-sm: 13px;--font-size-base: 14px;--font-size-md: 15px;--font-size-lg: 18px;--font-size-xl: 22px}.navbar{background:linear-gradient(135deg,#1e40af,#2563eb 60%,#3b82f6)}.nav-link{display:inline-block;padding:6px 14px;border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:500;color:#ffffffbf;transition:background .15s ease,color .15s ease;text-decoration:none}.nav-link:hover{background:#ffffff1f;color:#fff}.nav-link.active{background:#fff3;color:#fff}.btn-primary{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,box-shadow .15s ease,transform .1s ease;white-space:nowrap}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:0 2px 8px #2563eb59}.btn-primary:active:not(:disabled){transform:translateY(1px);box-shadow:none}.btn-primary:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-primary:disabled{opacity:.55;cursor:not-allowed}.btn-secondary{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--color-surface);color:var(--color-primary);border:1px solid var(--color-primary-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s ease;white-space:nowrap}.btn-secondary:hover:not(:disabled){background:var(--color-primary-light);border-color:var(--color-primary)}.btn-secondary:active:not(:disabled){background:#dbeafe}.btn-secondary:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-secondary:disabled{opacity:.55;cursor:not-allowed}.btn-secondary-admin{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;background:var(--color-surface);color:var(--color-admin-accent);border:1px solid var(--color-admin-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,border-color .15s ease;white-space:nowrap}.btn-secondary-admin:hover:not(:disabled){background:var(--color-admin-tint);border-color:var(--color-admin-accent)}.btn-secondary-admin:focus-visible{outline:2px solid var(--color-admin-accent);outline-offset:2px}.btn-secondary-admin:disabled{opacity:.55;cursor:not-allowed}.btn-approve{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:var(--color-success-bg);color:var(--color-success-text);border:1px solid var(--color-success-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;white-space:nowrap}.btn-approve:hover:not(:disabled){background:#dcfce7;box-shadow:0 1px 4px #15803d33}.btn-approve:focus-visible{outline:2px solid var(--color-success-text);outline-offset:2px}.btn-approve:disabled{opacity:.5;cursor:not-allowed}.btn-reject{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:var(--color-danger-bg);color:var(--color-danger-text);border:1px solid var(--color-danger-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;white-space:nowrap}.btn-reject:hover:not(:disabled){background:#fee2e2;box-shadow:0 1px 4px #b91c1c33}.btn-reject:focus-visible{outline:2px solid var(--color-danger-text);outline-offset:2px}.btn-reject:disabled{opacity:.5;cursor:not-allowed}.form-input{width:100%;padding:8px 11px;border:1.5px solid var(--color-border-strong);border-radius:var(--radius-sm);font-size:var(--font-size-base);color:var(--color-text);background:var(--color-surface);outline:none;transition:border-color .15s ease,box-shadow .15s ease;line-height:1.5}.form-input::placeholder{color:var(--color-text-subtle)}.form-input:hover:not(:disabled){border-color:#93c5fd}.form-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1f}.form-input:disabled{background:var(--color-bg);color:var(--color-text-muted);cursor:not-allowed}.table-row-hover:hover td{background:#f8faff}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:var(--space-6)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-subtle)}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);display:flex;flex-direction:column;flex-shrink:0;position:fixed;top:0;left:0;height:100vh;z-index:50;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 20px 16px;border-bottom:1px solid var(--sidebar-border);text-decoration:none}.sidebar-brand-mark{width:36px;height:36px;background:var(--color-primary);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;font-weight:800;flex-shrink:0}.sidebar-brand-text{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.01em}.sidebar-brand-role{font-size:11px;font-weight:500;color:var(--sidebar-text);text-transform:uppercase;letter-spacing:.08em;margin-top:1px}.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px}.sidebar-section-label{font-size:10px;font-weight:600;color:var(--sidebar-text);text-transform:uppercase;letter-spacing:.08em;padding:10px 10px 4px;opacity:.6}.sidebar-link{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);font-size:var(--font-size-base);font-weight:500;color:var(--sidebar-text);text-decoration:none;transition:background .12s ease,color .12s ease}.sidebar-link:hover{background:var(--sidebar-bg-hover);color:#fff}.sidebar-link.active{background:var(--sidebar-bg-active);color:var(--sidebar-text-active)}.sidebar-link-icon{font-size:15px;width:18px;text-align:center;flex-shrink:0;opacity:.85}.sidebar-footer{padding:12px 10px;border-top:1px solid var(--sidebar-border)}.sidebar-logout{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-weight:500;color:var(--sidebar-text);background:transparent;border:none;cursor:pointer;transition:background .12s ease,color .12s ease;text-align:left}.sidebar-logout:hover{background:#ef44441a;color:#fca5a5}.sidebar-user{padding:10px 12px 6px;font-size:var(--font-size-xs);color:var(--sidebar-text);opacity:.7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.shell-content{margin-left:var(--sidebar-width);flex:1;min-width:0;padding:var(--space-8) var(--space-6)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-bg);padding:var(--space-6)}.login-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:40px 36px;width:100%;max-width:380px}.login-brand{display:flex;align-items:center;gap:10px;margin-bottom:28px}.login-brand-mark{width:36px;height:36px;background:var(--color-primary);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;font-weight:800}.login-brand-text{font-size:20px;font-weight:800;color:var(--color-text);letter-spacing:-.01em}.login-title{font-size:var(--font-size-lg);font-weight:700;color:var(--color-text);margin-bottom:4px}.login-subtitle{font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:28px}.login-form{display:flex;flex-direction:column;gap:16px}.login-field{display:flex;flex-direction:column;gap:5px}.login-label{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-muted)}.btn-login{width:100%;padding:10px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-base);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;margin-top:4px}.btn-login:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:0 2px 8px #2563eb4d}.btn-login:disabled{opacity:.6;cursor:not-allowed}.btn-login:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.login-error{background:var(--color-danger-bg);color:var(--color-danger-text);border:1px solid var(--color-danger-border);border-radius:var(--radius-sm);padding:10px 12px;font-size:var(--font-size-sm);font-weight:500}.btn-edit{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:var(--color-primary-light);color:var(--color-primary);border:1px solid var(--color-primary-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;white-space:nowrap}.btn-edit:hover:not(:disabled){background:#dbeafe;box-shadow:0 1px 4px #2563eb26}.btn-edit:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-edit:disabled{opacity:.5;cursor:not-allowed}.btn-danger{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;background:var(--color-danger-bg);color:var(--color-danger-text);border:1px solid var(--color-danger-border);border-radius:var(--radius-sm);font-weight:600;font-size:var(--font-size-sm);cursor:pointer;transition:background .15s ease,box-shadow .15s ease;white-space:nowrap}.btn-danger:hover:not(:disabled){background:#fee2e2;box-shadow:0 1px 4px #b91c1c33}.btn-danger:focus-visible{outline:2px solid var(--color-danger-text);outline-offset:2px}.btn-danger:disabled{opacity:.5;cursor:not-allowed}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);font-size:var(--font-size-base);line-height:1.5;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button,input,textarea,select{font-family:inherit;font-size:inherit}h1,h2,h3,h4{margin:0;line-height:1.3}p{margin:0}