:root {
  --background-color: #161616;
  --text-color: #ffffff;
  --accent-color: #0b1472;
  --box-shadow: rgba(0, 0, 0, 0.3);
  --border-color: #333;
  --background-color2: #242424;
}

body {
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: "Poppins", sans-serif;
  line-height: 1.8;
  margin: 0;
  padding: 0;
  transition: background-color 0.4s ease, color 0.4s ease;
  letter-spacing: 1px;
}

body.light-mode {
  --background-color: #ffffff;
  --text-color: #000000;
  --border-color: #ccc;
  --box-shadow: rgba(0, 0, 0, 0.274);
  --background-color2: #ffffff;
}

header {
  background: var(--background-color2);
  color: var(--text-color);
  box-shadow: 0 2px 10px var(--box-shadow);
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.contenedor-header {
  display: flex;
  width: 80%;
  margin: 0px auto;
  justify-content: space-between;
  height: 100px;
  align-content: center;
  flex-wrap: wrap;
}

header h1 {
  margin: 0;
  font-size: 1.5em;
}

nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hamburgler {
  width: 25px;
  height: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.hamburgler div {
  height: 3px;
  background-color: var(--text-color);
  border-radius: 2px;
}

#menu {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 300px;
  background: var(--background-color);
  list-style-type: none;
  padding-top: 100px;
  margin: 0;
  transform: translateX(100%);
  transition: transform 0.4s ease, opacity 0.3s ease;
  overflow-y: auto;
  z-index: 90;
  box-shadow: 0 2px 10px var(--box-shadow);
  opacity: 0;
  pointer-events: none;
}

#hamburguer-toggle:checked ~ #menu {
  transform: translateX(0);
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

nav #menu li {
  padding: 10px 20px;
  font-size: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

nav #menu li i {
  margin-right: 12px;
  padding-right: 12px;
  border-right: 1px solid var(--border-color);
}

nav #menu li a {
  color: var(--text-color);
  text-decoration: none;
  margin-left: 10px;
  transition: color 0.3s ease;
}

.close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 24px;
  color: var(--text-color);
  cursor: pointer;
}

.switch {
  position: relative;
  width: 50px;
  height: 26px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 26px;
}

.slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-color);
}

input:checked + .slider::before {
  transform: translateX(24px);
}

footer {
  background: var(--background-color2);
  color: var(--text-color);
  padding: 20px;
  transition: background-color 0.4s ease, color 0.4s ease;
  border-top: 1px solid var(--border-color);
  box-shadow: 0 -2px 10px var(--box-shadow);
}

footer .contenerdor-dos {
  max-width: 1000px;
  margin: auto;
}

footer .copyright {
  text-align: center;
  font-size: 16px;
  margin-bottom: 20px;
}

footer .border-top {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
}

footer .social-icons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 10px;
}

footer .social-icons a {
  color: var(--text-color);
  font-size: 20px;
  transition: color 0.3s ease;
}

main > div {
  background-color: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 20px;
  margin: 30px auto;
  box-shadow: 0 4px 12px var(--box-shadow);
  width: 80%;
  transition: background-color 0.4s ease, color 0.4s ease, box-shadow 0.3s ease;
}

@media (max-width: 600px) {
  h2 {
    font-size: 1em;
  }

  main > div {
    padding: 10px;
    margin: 20px auto;
    width: 85%;
  }

  p {
    font-size: 0.8em;
  }

  li {
    font-size: 0.8em;
  }


ul {
    margin-block-start: 1em;
    margin-block-end: 1em;
    padding-inline-start: 15px;
}
}