* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #f4f5f7;
  color: #1f2328;
}
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  background: #fff;
  padding: 32px;
  border-radius: 10px;
  box-shadow: 0 2px 16px rgba(0,0,0,.08);
  width: 320px;
}
.login-box h1 { margin: 0 0 20px; font-size: 20px; }
.login-box label { display: block; margin-bottom: 14px; font-size: 13px; color: #57606a; }
.login-box input {
  width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid #d0d7de; border-radius: 6px; font-size: 15px;
}
.login-box button {
  width: 100%; padding: 10px; margin-top: 6px;
  background: #1f6feb; color: #fff; border: 0;
  border-radius: 6px; font-size: 15px; cursor: pointer;
}
.login-box button:hover { background: #1a5fd0; }
.page { max-width: 900px; margin: 40px auto; padding: 0 20px; }
.flash-area { max-width: 420px; margin: 16px auto 0; }
.flash { padding: 10px 14px; border-radius: 6px; margin-bottom: 8px; font-size: 14px; }
.flash-error { background: #ffebe9; color: #c1121f; }
.page-head { display: flex; justify-content: space-between; align-items: center; }
h2 { font-size: 16px; margin: 24px 0 10px; }
.btn {
  display: inline-block; padding: 8px 16px; background: #1f6feb; color: #fff;
  border: 0; border-radius: 6px; font-size: 14px; cursor: pointer; text-decoration: none;
}
.btn:hover { background: #1a5fd0; }
.btn-link { color: #57606a; text-decoration: none; margin-left: 12px; font-size: 14px; }
.btn-link-danger { background: none; border: 0; color: #c1121f; cursor: pointer; font-size: 13px; padding: 0; }
.tbl { width: 100%; border-collapse: collapse; margin-top: 16px; background: #fff; border-radius: 8px; overflow: hidden; }
.tbl th, .tbl td { padding: 10px 14px; text-align: left; border-bottom: 1px solid #eaecef; font-size: 14px; }
.tbl th { background: #f6f8fa; font-weight: 600; font-size: 13px; color: #57606a; }
.tbl tr:last-child td { border-bottom: 0; }
.mono { font-family: ui-monospace, Consolas, monospace; font-size: 13px; color: #57606a; }
.muted { color: #8b949e; }
.note { background: #fff8c5; padding: 10px 14px; border-radius: 6px; font-size: 14px; }
form label { display: block; margin-bottom: 14px; font-size: 13px; color: #57606a; }
form input[type=text], form input[type=password], form select {
  width: 100%; margin-top: 5px; padding: 8px 11px;
  border: 1px solid #d0d7de; border-radius: 6px; font-size: 14px;
}
.form-row { display: flex; gap: 16px; }
.form-row label { flex: 1; }
.form-actions { margin-top: 24px; }
.perm-group { border: 1px solid #d0d7de; border-radius: 8px; padding: 14px 16px; margin-bottom: 14px; background: #fff; }
.perm-group legend { font-weight: 600; font-size: 14px; padding: 0 6px; }
.chk { display: block; margin-bottom: 8px; font-size: 14px; color: #1f2328; }
.chk input { margin-right: 8px; }
.flash-ok { background: #dafbe1; color: #1a7f37; }
.nav-list { list-style: none; padding: 0; margin: 0 0 20px; }
.nav-list li { padding: 10px 14px; background: #fff; border-radius: 6px; margin-bottom: 6px; font-size: 14px; }
.nav-list a { color: #1f6feb; text-decoration: none; }
.nav-list a:hover { text-decoration: underline; }