nav {
    position: fixed;
    top: 90px;
    left: -300px; /* Oculto por defecto */
    width: 300px;
    height: 100vh;
    background: black;
    padding-top: 80px;
    transition: left 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
    z-index: -1;
    box-shadow: 5px 0 15px rgba(0, 0, 0, 0.3);
    overflow-y: auto;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    flex-flow: column;
}

nav ul li {
    margin: 0;
    transform: translateX(-100%);
    opacity: 0;
    transition: all 0.3s ease;
    width: 90%;
}
.burger {
    position: relative;
    width: 40px;
    height: 30px;
    background: transparent;
    cursor: pointer;
    display: block;
    margin-left: 2em;
}

.burger input {
    display: none;
}

.burger span {
    display: block;
    position: absolute;
    height: 4px;
    width: 100%;
    background: white;
    border-radius: 9px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.burger span:nth-of-type(1) {
    top: 0px;
    transform-origin: left center;
}

.burger span:nth-of-type(2) {
    top: 50%;
    transform: translateY(-50%);
    transform-origin: left center;
}

.burger span:nth-of-type(3) {
    top: 100%;
    transform-origin: left center;
    transform: translateY(-100%);
}

.burger input:checked ~ span:nth-of-type(1) {
    transform: rotate(45deg);
    top: 0px;
    left: 5px;
}

.burger input:checked ~ span:nth-of-type(2) {
  width: 0%;
  opacity: 0;
}

.burger input:checked ~ span:nth-of-type(3) {
  transform: rotate(-45deg);
  top: 28px;
  left: 5px;
}
.burger input:checked ~ nav {
  left: 0px;  /* Muestra el menu desplegado */
  transition-delay: 0.1s;
}
.burger input:checked ~ nav ul li {
    transform: translateX(0);
    opacity: 1;
}
.burger input:checked ~ nav ul li{
    transition-delay: 0.1s;
}
body:has(input:checked) .container {
    transform: translateX(300px);
    transition-delay: 0.1s;
}
nav ul li a {
    display: block;
    padding: 20px 30px;
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 100%;
    transition: width 0.3s ease;
    z-index: -1;
}


nav ul li a:hover::before {
    width: 100%;
}