:root{--bg: #f2f5fb;--surface: #ffffff;--text: #0b1220;--muted: #5b6b85;--primary: #1e6bff;--primary-dark: #154fcc;--sidebar-bg: #061a3d;--sidebar-bg-lighter: #0a2a5c;--danger: #d64545;--warning: #c98a12;--border: #e0e5f0}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary)}.app-shell{display:flex;min-height:100vh}.sidebar{width:230px;background:var(--sidebar-bg);color:#fff;padding:20px 0;flex-shrink:0}.brand{display:flex;align-items:center;gap:10px}.brand img{width:32px;height:32px;object-fit:contain;border-radius:6px;background:#fff;flex-shrink:0}.brand h1{font-size:16px;margin:0;line-height:1.25}.sidebar .brand{padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.15)}.topbar{display:none}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:4px;background:none;border:none;padding:6px;width:32px;height:32px;flex-shrink:0}.menu-toggle span{display:block;width:20px;height:2px;background:#fff;border-radius:2px}.sidebar-backdrop{display:none}.sidebar nav{display:flex;flex-direction:column;margin-top:12px}.sidebar nav a{color:#ffffffd9;text-decoration:none;padding:10px 20px;font-size:14px}.sidebar nav a:hover,.sidebar nav a.active{background:#ffffff1f;color:#fff}.sidebar .user-box{margin-top:24px;padding:12px 20px;border-top:1px solid rgba(255,255,255,.15);font-size:13px}.sidebar button.logout{margin-top:8px;background:none;border:1px solid rgba(255,255,255,.4);color:#fff;padding:4px 10px;border-radius:4px;cursor:pointer;font-size:12px}.main-content{flex:1;padding:28px 32px;max-width:1200px}h2{margin-top:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:20px;overflow-x:auto}.grid{display:grid;gap:16px}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.stat{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:16px}.stat .value{font-size:26px;font-weight:700}.stat .label{color:var(--muted);font-size:13px}table{width:100%;min-width:540px;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}tr.low-stock{background:#fdf1ee}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:600}.badge.danger{background:#fbe4e0;color:var(--danger)}.badge.warning{background:#fbf0d9;color:var(--warning)}.badge.ok{background:#e3ecfd;color:var(--primary-dark)}form{display:flex;flex-direction:column;gap:10px}label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px}input,select,textarea{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;font-family:inherit}button{cursor:pointer;border:none;border-radius:6px;padding:9px 16px;font-size:14px;font-weight:600;background:var(--primary);color:#fff}button:hover{background:var(--primary-dark)}button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}button.danger{background:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}.row{display:flex;gap:10px;align-items:center}.row.between{justify-content:space-between}.row.wrap{flex-wrap:wrap}.error-box{background:#fbe4e0;color:var(--danger);padding:10px 14px;border-radius:6px;font-size:14px}.success-box{background:#e3ecfd;color:var(--primary-dark);padding:10px 14px;border-radius:6px;font-size:14px}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,var(--sidebar-bg) 0%,var(--sidebar-bg-lighter) 100%)}.login-card{background:#fff;padding:32px;border-radius:10px;width:340px}.login-card .brand{display:flex;align-items:center;gap:10px;margin-bottom:4px}.login-card .brand img{width:40px;height:40px;object-fit:contain;border-radius:8px}.perm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 16px;margin:10px 0}.perm-grid label{flex-direction:row;align-items:center;gap:8px;font-size:13px;color:var(--text)}.muted{color:var(--muted);font-size:13px}.tag-list{display:flex;flex-wrap:wrap;gap:6px}@media (max-width: 860px){.app-shell{flex-direction:column}.topbar{display:flex;align-items:center;gap:12px;background:var(--sidebar-bg);padding:10px 14px;position:sticky;top:0;z-index:30}.topbar .brand h1{color:#fff}.sidebar .brand.brand-desktop{display:none}.sidebar{position:fixed;top:0;left:0;height:100vh;width:260px;max-width:80vw;transform:translate(-100%);transition:transform .25s ease;z-index:50;overflow-y:auto}.app-shell.menu-open .sidebar{transform:translate(0)}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#040a1880;z-index:40}.main-content{padding:16px;max-width:100%}.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}.card{padding:14px}.row{flex-wrap:wrap}.perm-grid{grid-template-columns:1fr}input,select,textarea{font-size:16px}button{padding:10px 16px}.login-card{width:100%;max-width:340px;margin:0 16px}.stat .value{font-size:22px}}