:root{--bg:#0f1419;--surface:#1a222c;--border:#2a3544;--text:#e8eef5;--muted:#8b9bb0;--accent:#3d8bfd;--accent-dim:#2563b8;--danger:#e35d6a;--ok:#3ecf8e;--font:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,monospace}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:radial-gradient(1200px 600px at 10% -10%,#1a2a3f 0,var(--bg) 55%);color:var(--text);font-family:var(--font)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button{cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:.5rem .9rem;border-radius:6px}button.primary{background:var(--accent);border-color:var(--accent-dim);color:#fff}button.danger{background:transparent;border-color:var(--danger);color:var(--danger)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:.5rem .7rem;border-radius:6px;width:100%}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:.65rem .5rem;border-bottom:1px solid var(--border);vertical-align:top}th{font-weight:500;font-size:.85rem}.muted,th{color:var(--muted)}.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.nav{border-right:1px solid var(--border);background:rgba(15,20,25,.85);padding:1.25rem 1rem;display:flex;flex-direction:column;gap:.35rem}.nav .brand{font-weight:600;letter-spacing:.02em;margin-bottom:1rem;font-size:1.05rem}.nav a{color:var(--muted);padding:.45rem .55rem;border-radius:6px;text-decoration:none}.nav a.active,.nav a:hover{background:var(--surface);color:var(--text);text-decoration:none}.main{padding:1.5rem 1.75rem 2.5rem;max-width:1100px}.main h1{margin:0 0 .35rem;font-size:1.5rem;font-weight:600}.toolbar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;margin:1rem 0 1.25rem}.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:.75rem;gap:.75rem;margin:1rem 0 1.5rem}.stat{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.9rem 1rem}.stat .label{color:var(--muted);font-size:.8rem}.stat .value{font-size:1.6rem;font-weight:600;font-family:var(--mono);margin-top:.2rem}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:1rem}.login-box{width:min(380px,100%);background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.5rem}.login-box h1{margin:0 0 .25rem;font-size:1.35rem}.field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:.9rem}.field label{font-size:.85rem;color:var(--muted)}.error{color:var(--danger);margin:.5rem 0;font-size:.9rem}@media (max-width:800px){.shell{grid-template-columns:1fr}.nav{border-right:none;border-bottom:1px solid var(--border);flex-direction:row;flex-wrap:wrap;align-items:center}.nav .brand{width:100%;margin-bottom:.25rem}}