:root{--bg:#0f1115;--panel:#171a21;--panel-2:#1f232c;--border:#2a2f3a;--text:#e6e8eb;--muted:#9aa3b2;--accent:#5b8def;--accent-fg:#ffffff}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:var(--panel);border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{font-weight:700;font-size:18px;padding:8px 12px 16px;letter-spacing:.5px}.nav-link{padding:9px 12px;border-radius:8px;color:var(--muted);display:flex;align-items:center;gap:10px}.nav-link.active,.nav-link:hover{background:var(--panel-2);color:var(--text)}.sidebar-footer{margin-top:auto;border-top:1px solid var(--border);padding-top:12px;color:var(--muted);font-size:12px}.content{padding:28px 32px;max-width:1100px}.page-title{font-size:22px;font-weight:700;margin:0 0 4px}.page-sub{color:var(--muted);margin:0 0 24px}.card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px 20px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:16px;gap:16px}.btn{background:var(--accent);color:var(--accent-fg);border:none;border-radius:8px;padding:10px 16px;font-size:14px;font-weight:600;cursor:pointer}.btn:hover{filter:brightness(1.08)}.input{width:100%;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:14px}.label{display:block;margin-bottom:6px;color:var(--muted);font-size:13px}.field{margin-bottom:14px}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{width:360px}.error{color:#ff6b6b;font-size:13px;margin-bottom:12px}.badge{display:inline-block;background:var(--panel-2);border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:2px 10px;font-size:12px}