body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #f9fafb;
  color: #0f172a;
  -webkit-font-smoothing: antialiased;
}

.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1rem;
  box-sizing: border-box;
}

.login-card {
  background: #ffffff;
  padding: 2.5rem;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
  box-sizing: border-box;
}

.login-title {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.login-subtitle {
  margin: 0.5rem 0 1.5rem;
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.4;
}

label {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #334155;
}

input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  margin-bottom: 1.25rem;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
  box-sizing: border-box;
  background-color: #ffffff;
  color: #0f172a;
}

input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 1px #2563eb;
}

.btn-primary {
  width: 100%;
  padding: 0.75rem;
  background: #2563eb;
  color: #ffffff;
  border: 1px solid #2563eb;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease;
  box-sizing: border-box;
}

.btn-primary:hover {
  background: #1e4fc7;
}

.login-error {
  margin-top: 1rem;
  padding: 0.6rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  border-radius: 6px;
  font-size: 0.85rem;
  text-align: center;
}

.login-footer {
  margin-top: 1.75rem;
  font-size: 0.8rem;
  color: #64748b;
  text-align: center;
}