:root{--bg:#f3f5f9;--ink:#0f172a;--muted:#64748b;--card:#fff;--line:#e2e8f0;--brand:#0f172a}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--ink)}.public,.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.card,.login-card{background:var(--card);padding:34px;border-radius:20px;box-shadow:0 20px 60px rgba(15,23,42,.12);width:min(480px,92vw)}h1{margin:0 0 12px;font-size:32px}h2{margin:0 0 20px;color:#334155;font-size:18px}label{display:block;margin:14px 0;font-weight:700}input{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:10px;font-size:16px;margin-top:6px}button,.button{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:12px 18px;text-decoration:none;font-weight:700;cursor:pointer}.error{background:#fee2e2;color:#991b1b;padding:10px;border-radius:10px}.app{display:flex;min-height:100vh}.sidebar{width:260px;background:#0f172a;color:#fff;padding:24px}.sidebar h2{color:#fff}.sidebar a{display:block;color:#e2e8f0;text-decoration:none;padding:10px 0}.main{flex:1;padding:32px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin:20px 0}.stat,.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.stat strong{display:block;font-size:34px}.stat span{color:var(--muted)}table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left}th{background:#f8fafc}.inline{display:inline}