:root{
    --c-background: #031D44; /*background*/
    --c-background-light: #04395E; /*background-highlight*/
    --c-boxes: #24719f;; /*boxes*/
    --c-lines: #87a9da; /*lines*/
    --c-text: #CAF0F8; /*text*/
    --c-other: #70A288; /*other*/
}

body{
    overflow-x: hidden;

    background: rgb(0,0,0);
    background: -moz-linear-gradient(145deg, var(--c-background) 0%, var(--c-background-light) 100%);
    background: -webkit-linear-gradient(145deg, var(--c-background) 0%, var(--c-background-light) 100%);
    background: linear-gradient(145deg, var(--c-background) 0%, var(--c-background-light) 100%);

    display: flex;
    flex-direction: column;
}
body .between h1{
    margin-top: 2em;
    text-align: center;
    color: var(--c-text);
    text-decoration: underline;
    font-size: 4em;
}

.hidden{
    display: none !important;
}

.apps-group{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.apps-group div{
    border-radius: 1em;
}
.apps-container{
    position: relative;
    display: flex;
    gap: 3em;
    width: 100%;
    margin: auto;
    justify-content: center;
}
.apps-container .chat,
.apps-container .apps-group{

}


.nav-drone{
    margin-top: 0em !important;
    margin-bottom: -9em;
    height: 20em;
    position: relative;
}
.nav-drone .video-background{
    height: 55vh;
    clip-path: polygon(0 0%, 15% 0, 30% 0%, 42% 0%, 61% 0%, 82% 0%, 100% 0%, 100% 94%, 82% 100%, 65% 96%, 47% 99%, 30% 90%, 14% 98%, 0 94%) !important;
}
#nav-drone-background-css:has(nav) nav{ /*TOHLE PATŘÍ NAVIGACI VYŘEŠIT*/
    margin-bottom: 8em;
}

.spark-cursor{
    margin: 0;
    padding: 0;
    box-sizing: border-box;

    position: absolute;
    width: 40px;
    height: 40px;

    transform: translate(-20px, -20px);
}
.spark-cursor *{
    margin: 0;
    padding: 0;
    box-sizing: border-box;


}

.spark-cursor span{
    position:absolute;
    width: 2px;
    height: 20px;
    pointer-events: none;
    transform-origin: bottom;
    overflow: hidden;

    filter: drop-shadow(0 0 0.5em #0f0) drop-shadow(0 0 1em #0f0);
}
.spark-cursor span.animate::before{
    display: block;
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: #0f0;
    animation: animate-spark 1s ease-in-out forwards;
}
@keyframes animate-spark{
    0%{
        transform: translateY(100%);
    }
    100%{
        transform: translateY(-100%);
    }
}

.success-form-alert{
    display: none;
    background: #d4edda;
    color: #155724;
    padding: 10px;
    border: 1px solid #c3e6cb;
    border-radius: 5px;
    margin-top: 10px;
    position: relative;
}
.success-form-alert .close{
    position: absolute;
    top: 5px;
    right: 10px;
    cursor: pointer;
    font-weight: bold;
}

@media only screen and (max-width: 990px) {
    .apps-container{
        display: flex;
        margin: auto;
        flex-direction: column;
        width: 90%;
        gap: 1em;
    }
    .nav-drone{
        display: none;
    }
    .apps-container .apps-group {
        font-size: 0.9em;
        gap: 1em;
    }
}



#reconnect{
    border-radius: 1em;
    color: white;
    padding: 4em;
    background-color: rgb(195 20 20);
    width: 100%;
    height: 100%;
    position: absolute;
    display: flex;
    align-items: center;
    flex-direction: column;
    border: #7b0000 dashed 0.5em;
}
#reconnect img{
    width: 10em;
}
#reconnect button{
    position: relative;
    color: white;
    margin: auto 1em;
    padding: 1em;
    font: initial;
    font-size: 2em;
    background: none;
    border: none;
    cursor: pointer;


    &:hover{
        animation: shake 0.4s ease-in-out infinite;
        animation-iteration-count: infinite;
    }
}


@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-2px) rotate(-8deg); }
    50% { transform: translateX(2px) rotate(4deg); }
    75% { transform: translateX(-1px) rotate(-2deg); }
    100% { transform: translateX(0); }
}