* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-wrapper {
  width: 100%;
  max-width: 400px;
  padding: 2rem;
}
.login-box {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 2.5rem;
}
.logo {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: #64748b;
  margin-bottom: 0.5rem;
}
h1 {
  font-size: 1.5rem;
  font-weight: 500;
  color: #f1f5f9;
  margin-bottom: 2rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
label {
  display: block;
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 8px;
  color: #f1f5f9;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
input:focus { border-color: #6366f1; }
button {
  width: 100%;
  padding: 0.85rem;
  background: #6366f1;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.2s;
}
button:hover { background: #4f46e5; }
button:disabled { background: #334155; cursor: not-allowed; }
.error-msg {
  background: #450a0a;
  color: #fca5a5;
  border: 1px solid #7f1d1d;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  margin-bottom: 1.25rem;
  display: none;
}
.error-msg.show { display: block; }