:root{--primary:#1769ff;--bg:#f5f7fb;--text:#111827;--border:#e5e7eb}body{margin:0;font-family:Inter,system-ui,Arial;background:var(--bg);color:var(--text)}.layout{display:grid;grid-template-columns:250px 1fr;min-height:100vh}.sidebar{background:#0f172a;color:#fff;padding:24px}.sidebar a{display:block;color:#dbeafe;text-decoration:none;padding:10px 12px;border-radius:10px}.sidebar a:hover{background:#1e293b}.main{padding:28px}.card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;margin-bottom:18px;box-shadow:0 8px 24px rgba(15,23,42,.06)}table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left}.btn{border:0;background:var(--primary);color:#fff;padding:10px 14px;border-radius:10px;text-decoration:none;cursor:pointer}.danger{background:#dc2626}.ok{color:#16a34a}.bad{color:#dc2626}.login{max-width:420px;margin:8vh auto}.input{width:100%;padding:12px;border:1px solid var(--border);border-radius:12px;margin:8px 0 14px}@media(max-width:800px){.layout{grid-template-columns:1fr}.sidebar{position:static}}