:root{--bg:#f6f7fb;--panel:#ffffff;--panel-2:#f1f4f9;--text:#101828;--muted:#667085;--border:#d0d5dd;--primary:#1d4ed8;--primary-2:#0f3aa6;--danger:#b42318;--success:#067647;--shadow:0 18px 50px rgba(16,24,40,0.08);--radius:10px;color-scheme:light}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.page,.shell{min-height:100vh}.shell{display:grid;grid-template-columns:240px 1fr}.sidebar{background:#0b1220;color:#e5e7eb;padding:24px 18px}.brand{font-size:20px;font-weight:700;margin-bottom:20px}.nav{display:grid;grid-gap:8px;gap:8px}.nav a{padding:10px 12px;border-radius:8px;color:#cbd5e1}.nav a.active{background:rgba(59,130,246,.18);color:#fff}.content{padding:24px}.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:20px}.title{font-size:24px;font-weight:700;margin:0}.muted{color:var(--muted)}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}.grid{display:grid;grid-gap:16px;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field{display:grid;grid-gap:6px;gap:6px}.field label{font-size:13px;color:var(--muted)}.field input,.field select,.field textarea{width:100%;border:1px solid var(--border);background:#fff;border-radius:8px;padding:10px 12px;outline:none}.field textarea{min-height:96px;resize:vertical}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.btn{border:1px solid transparent;border-radius:8px;padding:10px 14px;cursor:pointer}.btn.primary{background:var(--primary);color:#fff}.btn.secondary{background:#fff;border-color:var(--border);color:var(--text)}.btn.danger{background:var(--danger);color:#fff}.table{width:100%;border-collapse:collapse}.table td,.table th{text-align:left;padding:12px 10px;border-bottom:1px solid var(--border);vertical-align:top}.table th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(440px,100%)}.notice{border-radius:8px;background:#ecfdf3;color:var(--success);border:1px solid #abefc6}.error,.notice{padding:12px 14px}.error{border-radius:8px;background:#fef3f2;color:var(--danger);border:1px solid #fecdca}.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 10px;font-size:12px;background:var(--panel-2);color:var(--muted)}@media (max-width:960px){.shell{grid-template-columns:1fr}.sidebar{position:-webkit-sticky;position:sticky;top:0;z-index:2}.grid.three,.grid.two{grid-template-columns:1fr}}