* { box-sizing: border-box; }
body {
  margin: 0;
  color: #142322;
  background: #f6f7f2;
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
}
[hidden] { display: none !important; }
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-panel {
  width: min(100%, 420px);
  padding: 32px;
  border: 1px solid #d3dcd6;
  border-radius: 18px;
  background: #fff;
}
.login-panel h1 { margin: 0 0 16px; font-size: 26px; }
.login-panel p { color: #4c5d5b; }
.login-panel label { display: block; margin-bottom: 8px; }
.login-panel input, .login-panel button {
  width: 100%;
  padding: 12px;
  border: 1px solid #aab9b1;
  border-radius: 8px;
  font: inherit;
}
.login-panel button {
  margin-top: 20px;
  color: #fff;
  background: #173b3a;
  cursor: pointer;
}
.login-panel button:disabled { opacity: 0.6; cursor: wait; }
.login-panel :focus-visible { outline: 3px solid #0b6bc4; outline-offset: 3px; }
.login-panel #access-error { color: #a1242e; }
.login-note { font-size: 13px; }