/* hamburguesa */
body {
  background: #174A5B;
  margin: 0;
  padding: 0;
}

.container-menu-hamburguesa {
    margin-top:5%;
    display: inline-block;
    cursor: pointer;
}

.container-menu-hamburguesa img {
    transition: filter 0.3s ease;
}

.container-menu-hamburguesa:hover img {
    filter: brightness(1.5);
}

.hamburguesa {
    text-align: center;
    display: flex;
    align-items: center;
}

.container-menu-hamburguesa {
cursor: pointer;
}


/* Rotate first bar */
.change .bar1 {
    -webkit-transform: rotate(-45deg) translate(-9px, 6px) ;
    transform: rotate(-45deg) translate(-9px, 6px) ;
}

/* Fade out the second bar */
.change .bar2 {
    opacity: 0;
}

/* Rotate last bar */
.change .bar3 {
    -webkit-transform: rotate(45deg) translate(-8px, -8px) ;
    transform: rotate(45deg) translate(-8px, -8px) ;
}


/* right side menu — panel retro-tecnológico tipo terminal */

.sidenav {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 50000;
    top: 0;
    right: 0;
    overflow: hidden;
    transition: width 0.5s cubic-bezier(0.65, 0, 0.35, 1);
    padding-top: 70px;
    background:
      repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.18) 0px, rgba(0, 0, 0, 0.18) 1px, transparent 1px, transparent 3px),
      linear-gradient(165deg, #0a2e38 0%, #007376 55%, #0a2e38 100%);
    border-left: 3px solid #F3D64D;
    box-shadow: -12px 0 45px rgba(243, 214, 77, 0.5), inset 0 0 60px rgba(0, 0, 0, 0.4);
}

/* banda de escaneo tipo CRT recorriendo el panel */
.sidenav::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 25%;
    background: linear-gradient(to bottom, transparent, rgba(243, 214, 77, 0.18), transparent);
    animation: sidenavScan 4s linear infinite;
    pointer-events: none;
}

@keyframes sidenavScan {
    0% { transform: translateY(-120%); }
    100% { transform: translateY(500%); }
}

/* rótulo tipo terminal arriba de los links */
.sidenav-label {
    margin: 0 0 16px 32px;
    padding-bottom: 10px;
    width: calc(100% - 64px);
    font-family: 'Orbitron', sans-serif;
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: #78C5D5;
    text-shadow: 0 0 8px rgba(120, 197, 213, 0.8);
    white-space: nowrap;
    border-bottom: 1px solid rgba(120, 197, 213, 0.35);
}

.sidenav a {
    padding: 10px 8px 10px 32px;
    text-decoration: none;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #F3D64D;
    text-shadow: 0 0 6px rgba(243, 214, 77, 0.5);
    display: block;
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.2s ease, text-shadow 0.2s ease;
}

.sidenav a:hover, .sidenav a:focus {
    color: #78C5D5;
    text-shadow: 0 0 10px rgba(120, 197, 213, 0.9), 0 0 22px rgba(120, 197, 213, 0.5);
}

/* al abrirse, los links entran en cascada tipo "boot-up" */
.sidenav.sidenav--open a {
    opacity: 1;
    transform: translateX(0);
}

.sidenav.sidenav--open a:nth-of-type(1) { transition-delay: 0s; }
.sidenav.sidenav--open a:nth-of-type(2) { transition-delay: 0.08s; }
.sidenav.sidenav--open a:nth-of-type(3) { transition-delay: 0.14s; }
.sidenav.sidenav--open a:nth-of-type(4) { transition-delay: 0.2s; }
.sidenav.sidenav--open a:nth-of-type(5) { transition-delay: 0.26s; }
.sidenav.sidenav--open a:nth-of-type(6) { transition-delay: 0.32s; }
.sidenav.sidenav--open a:nth-of-type(7) { transition-delay: 0.38s; }
.sidenav.sidenav--open a:nth-of-type(8) { transition-delay: 0.44s; }

.sidenav .closebtn {
    position: absolute;
    top: 16px;
    right: 20px;
    width: 36px;
    height: 36px;
    margin-left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: #F3D64D;
    background: rgba(0, 0, 0, 0.25);
    border: 2px solid #F3D64D;
    border-radius: 50%;
    box-sizing: border-box;
}

.sidenav .closebtn:hover {
    color: #F3D64D;
    text-shadow: none;
    transform: scale(1.1) rotate(90deg);
    background: rgba(0, 0, 0, 0.5);
}

@media screen and (max-height: 450px) {
  .sidenav {padding-top: 15px;}
  .sidenav a {font-size: 1rem;}
}