:root{
  --bg:#f4f6fa; --card:#fff; --ink:#1c2333; --muted:#6b7280;
  --line:#e3e8ef; --brand:#1f5fbf; --brand-dark:#174a96; --danger:#b42318;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5}
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-card{background:var(--card);width:100%;max-width:380px;padding:28px;
  border:1px solid var(--line);border-radius:14px;box-shadow:0 6px 24px rgba(20,30,60,.07)}
.auth-card h1{margin:0 0 4px;font-size:22px}
.muted{color:var(--muted);font-size:14px;margin:0 0 18px}
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px}
input,select{width:100%;padding:11px 12px;border:1px solid var(--line);
  border-radius:9px;font-size:16px;background:#fff}
input:focus,select:focus{outline:2px solid var(--brand);border-color:var(--brand)}
button{width:100%;margin-top:20px;padding:12px;border:0;border-radius:9px;
  background:var(--brand);color:#fff;font-size:16px;font-weight:600;cursor:pointer}
button:hover{background:var(--brand-dark)}
.alert{background:#fef3f2;color:var(--danger);border:1px solid #fecdca;
  padding:10px 12px;border-radius:9px;font-size:14px;margin-bottom:6px}
.wrap{max-width:1000px;margin:0 auto;padding:20px}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;
  display:flex;justify-content:space-between;align-items:center}
.topbar a{color:var(--brand);text-decoration:none;font-size:14px;font-weight:600}