* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  font-size: 16px;
  --colornav: #2d343c;
  --colorprimary: #333333;
  --colorsecondary: #666666;
  --colorbackground: #ffffff;
  --colorbutton: #007bff;
  --colorbuttonhover: #0056b3;
  --colordisabled: var(--colorsecondary);
}

body {
  background-color: var(--colorbackground);
  font-family: Arial, sans-serif;
  color: var(--colorprimary);
  line-height: 1.3;
}

header {
  background-color: var(--colornav);
  padding: 0.5rem 0;
}

nav {
  display: flex;
  justify-content: center;
  align-items: center;
}

nav h1 {
  color: #ffffff;
  margin-left: 1rem;
}

.logo {
  width: 3.5rem;
  height: 3.8rem;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding-top: 1rem;
  padding-bottom: 3rem;
  background-color: var(--colorbackground);
}

h1,
h2 {
  color: var(--colorprimary);
  margin-bottom: 0.5rem;
}

p {
  color: var(--colorsecondary);
  margin-bottom: 1rem;
}

ol {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

ol li {
  margin-bottom: 0.5rem;
}

.formulario {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--colorbackground);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1), 0 6px 20px rgba(0, 0, 0, 0.1);
  border-radius: 5px;
}

.formulario hr {
  margin: 1rem 0;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--colorprimary);
}

input[type="text"],
input[type="email"] {
  width: 100%;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

button[type="submit"] {
  display: inline-block;
  background-color: #007a7b;
  color: #fff;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

button[type="submit"]:hover {
  background-color: #009688;
}

button[type="submit"]:disabled {
  background-color: var(--colordisabled);
  cursor: not-allowed;
}

footer {
  text-align: center;
  background-color: var(--colornav);
  width: 100%;
  height: 3rem;
  padding-top: 1rem;
  position: fixed;
  left: 0;
  bottom: 0;
  color: #ffffff;
}

footer p {
  color: var(--colorprimary);
}