@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

body, * {
    font-family: "Inter", sans-serif;
}

html {
    height: 100%;
    scroll-padding-top: calc(4.5rem - 1px);

}

@media (prefers-reduced-motion: no-preference) {
    :root {
        scroll-behavior: smooth;
    }
}

::-webkit-scrollbar {
    width: 19px;
    height: 19px;
}

::-webkit-scrollbar-thumb {
    background-color: #b3b2b2;
}

::-webkit-scrollbar-track {
    background-color: #ffffff;
}

::selection {
    background: #949494;
    color: white;
}

a {
    color: #7f51bc;
}

a:hover {
    color: #865cbd;
    text-decoration: underline;
}

.a4 {
    max-width: 21cm;
    min-height: 29.7cm;
}

.cursor-pointer {
    cursor: pointer!important;
}

.bi-primary {
    background-color: white !important;
    font-size: 2rem;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    vertical-align: middle;
}

.small {
    font-size: .875rem;
    line-height: 1.25rem;
}

.icon-small {
    width: 7.5rem!important
}

.client-logo {
    height: 4rem;
}

.alumni-logos {
    margin-bottom: -2rem;
    margin-left: -2rem;
}

.btn:hover {transform: scale(.9);}

.btn-group .btn.focus, .btn-group .btn:focus {
    outline: 0;
    box-shadow: 0 0 0 .17rem rgb(81 188 182);
}

.bg-dark, .btn-dark {
    background-color: #393939 !important;
}

.btn-white {
    background-color: #ffffff !important;
}

.bg-turquoise .btn-white {
    color: #51bcb6 !important;
}


.bg-turquoise {
    background-color: #51bcb6!important;
}

.bg-turquoise, .btn-turquoise, .navbar-shrink .btn-turquoise:hover {
    background-color: #51bcb6 ;
    color: white;
    box-shadow: none;
}

.navbar .btn-turquoise{
    background-color: white;
    color: #4e4e4e!important;
}

.navbar-shrink .btn-turquoise {
    background-color: #51bcb6;
    color: white!important;
}

.text-turquoise {
    color: #51bcb6 !important;
}

.text-muted {
    color: #646464 !important;
}

.text-gray {
    color: #404040;
}

.shadow-sm {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15) !important;
}

h1, h2, h3 {
    font-weight: 400;
}

.spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 50px;
    height: 50px;
    border: 6px solid rgba(255, 255, 255, 0.2);
    border-top-color: #ffffff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;

    animation: spin 1.25s linear, fadeOut 0.25s ease 1s forwards;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes fadeOut {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

header.masthead {
    --overlay-alpha: 0.68;
    background: linear-gradient(
            to bottom,
            rgba(25,25,25,var(--overlay-alpha)) 50%,
            #000 100%
    );
    z-index: 1;
    min-height: 100vh !important;
    height: 100vh !important;
    padding-top: 4.5rem;
    overflow: hidden;
}

.top-0 {
    top: 0;
}

.masthead-overlay {
    padding-top: 5rem !important;
    height: 100vh;
}
header.masthead video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    pointer-events: none;
}

.card-box {
    border-radius: 1.25rem;
    height: 20rem;
    width: 20rem;
}

footer a, footer a:hover {
    color: black;
}

.footer-heading {
    font-weight: 400 !important;
}

footer .border-left {
    border-left: 1px solid #dee2e626 !important;
}

.form-control {
    border: 1px solid #dddcdc;
    border-radius: 1.25rem;
}

.form-control:focus {
    color: #646464;
    border-color: #7f51bc;
    box-shadow: 0 0 0 0.2rem #7f51bc40;
}

#background-video {
    height: 100vh;
    width: 100vw;
    object-fit: cover;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    z-index: -1;
}

.border-l-4 {
    border-left: .2rem solid #7f51bc;
}

.border-turquoise {border-color: #51bcb6;}

.border-muted {
    border-color: #b2b2b2;
}

hr.divider {
    height: 0.09375rem !important;
    max-width: 3.75rem;
    margin: 1.5rem auto;
    background-color: #51bcb6;
    opacity: 1;
}

hr.fill-white {
    background-color: #fff;
}
hr.fill-primary {
    background-color: #7f51bc;

}

@media (max-width: 991.98px), (max-height: 820px) {
    .responsive-display-4, .typed-cursor {
        font-size: 2.75rem!important;
    }
    .responsive-h2 {
        font-size: 1.75rem;
    }
}

/* === MOBIL === */
@media (max-width: 767.98px), (max-height: 750px) {
    .responsive-display-4, .typed-cursor{
        font-size: 2.5rem!important;
    }
    .responsive-h2 {
        font-size: 1.5rem;
    }
}

.nav-transparent{
    background: linear-gradient(to bottom, #000000a6 0%, #00000000 100%);
    box-shadow: none;
    margin-top: -75px;
    opacity: 0;
}

#mainNav {    transition: margin-top 3.5s ease, opacity 1.5s ease, background-color 0.25s ease;
}

#mainNav .text-primary{
    color: white !important;
    background: #ffffff1c;
    line-height: 1.35rem;
    padding-top: 0.57rem;
    padding-bottom: 0.57rem;
    border-radius: 2.5rem;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: #949494!important;
 }

.navbar-light .navbar-nav .btn-turquoise:hover {
    color: #51bcb6 !important;
}

#mainNav.navbar-shrink .text-primary {
    text-shadow: none!important;
    color: #7f51bc !important;
}


.navbar-light .navbar-toggler {
    background: #0000004d;
    border: 0;
    border-radius: 100%;
    padding: 0.5rem;
}

.navbar-light .navbar-toggler:focus {
    outline: none !important;
}

.navbar-light .navbar-toggler-icon {
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-menu"><line x1="3" y1="12" x2="21" y2="12" style=" border: coral; "/><line x1="3" y1="6" x2="21" y2="6"/><line x1="3" y1="18" x2="21" y2="18"/></svg>');
    width: 1.2em;
    height: 1.2em;
    filter: invert(1);
    transform: scale(.85);
}

.btn {
    height: 2.5rem;
    line-height: 1.5rem;
    border-radius: 2.5rem;
    padding-right: 1rem;
    padding-left: 1rem;
    transition: all .4s;
}

#mainNav .btn {
    line-height: 1.35rem;
}

.text-primary {
    color: #7f51bc !important;
}

.text-black {
    color: #000000 !important;
}

.text-purple {
    color: #7f51bc !important;
}

a.text-primary:focus, a.text-primary:hover {
    color: #7f51bc !important;
    text-decoration: underline;
}

.bg-black {
    background-color: black !important;
}

@keyframes pulse-bg {
    0%, 100% {
        background-color: hsl(0, 0%, 38.8%);
    }
    50% {
        background-color: hsl(0, 0%, 48.5%);
    }
}


.auto-type .bg-primary {
    text-shadow: rgba(157, 157, 157, 1) 0px 0px 0.5rem, rgba(173, 173, 173, 0.57) 0 0 1rem, rgba(218, 218, 218, 0.74) 0px 0px 1.5rem, rgba(208, 208, 208, 0.53) 0px 0px 2rem, rgba(138, 138, 138, 0.61) 0px 0px 2.5rem !important;
    background-color: #ffffff4d !important;
    animation: pulse-bg 7s ease-in-out infinite;
}


.bg-primary, .bg-purple, .btn-purple {
    color: white;
    background-color: #7f51bc !important;
}

.bg-purple .btn-purple:hover, .masthead .btn-purple:hover  {
    background-color: white !important;
    color: #7f51bc !important;
}


.badge {
    border-radius: 1rem;
    padding-left: .75rem;
    padding-right: .75rem;
    padding-top: .25rem;
    padding-bottom: .25rem;
    font-size: .875rem;
    line-height: 1.25rem;
    font-weight: 500;
}

.badge-primary {
    color: #7349aa;
    background-color: #e7d7fb;
}

.badge-secondary {
    color: #595959;
    background-color: #dddddd;
}

.badge-dark {
    color: #fff;
    background-color: #595959;
}

.badge-success {
    color: #313d37;
    background-color: #07ff86;
}

.badge-white {
    color: #000000;
    background-color: #ffffff;
}

.badge-info {
    color: #4e5e9d;
    background-color: #d8e0ff;
}

.lead {
    font-weight: 400;
}

.btn {
    font-weight: 500 !important;
}

.btn-primary:hover, .btn-primary:not(:disabled):not(.disabled).active:focus, .btn-primary:not(:disabled):not(.disabled):active:focus, .show > .btn-primary.dropdown-toggle:focus {
    box-shadow: 0 0 0 0.2rem #7f51bc40 !important;
    border-color: #00000000 !important;
}

.btn-purple.focus, .btn-purple:focus, .btn-dark.focus, .btn-dark:focus, .btn-turquoise.focus, .btn-turquoise:focus, .btn-white.focus, .btn-white:focus {
    box-shadow: 0 0 0 0 transparent;
}

.btn-outline-white {
    color: #ffffff;
    background-color: transparent;
    background-image: none;
    border-color: #ffffff;
}
.otw-fab {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial;
}

.otw-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    right: 0 !important;
    bottom: 0;
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    overflow: hidden;
    cursor: pointer;
    transition: transform .16s ease, box-shadow .16s ease, background .25s ease;
    background: #0000004d;
}

.otw-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(0,0,0,0.22);
}

.otw-icon {
    width: 30px;
    height: 30px;
}

.otw-panel {
    position: absolute;
    bottom: 70px; /* nad tlačítkem */
    right: 0;
    background: #fff;
    border-radius: 10px;
    padding: 0.5rem;
    min-width: 12rem;
    max-width: 50vw;
    box-shadow: 0 8px 26px rgba(0,0,0,0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: transform .28s cubic-bezier(.2,.9,.2,1), opacity .25s ease, visibility 0s linear;
    z-index: 1;
}

.otw-fab.open .otw-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.otw-panel::after {    content: "";
    position: absolute;
    bottom: -5px;
    right: 1.45rem;
    width: 10px;
    height: 10px;
    transform: rotate(45deg);
    background: #fff;
}

.otw-panel .open-to-work {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    font-weight: 600;
}

.open-to-work .otw-dot {
    width:8px;height:8px;border-radius:50%;background:#28a745;
    position:relative;flex-shrink:0;

    margin-right: 1.5rem;
    margin-left: 1rem;
}

.open-to-work .otw-dot::after {
    content:"";position:absolute;top:50%;left:50%;
    width:8px;height:8px;border-radius:50%;
    transform:translate(-50%,-50%);
    box-shadow:0 0 0 0 rgba(40,167,69,.85);
    animation:otw-pulse 1.8s ease-out infinite;
}

@keyframes otw-pulse {
    0%{box-shadow:0 0 0 0 rgba(40,167,69,.85)}
    70%{box-shadow:0 0 0 12px rgba(40,167,69,0)}
    100%{box-shadow:0 0 0 0 rgba(40,167,69,0)}
}

@media (max-width:480px){
    .otw-fab { left:12px; bottom:14px; }
    .otw-panel { max-width: calc(100% - 96px); }
}

.alert-cookie {
    position: fixed!important;
    bottom: 0;
    width: 100%;
    z-index: 9999 !important;
    font-size: 15px;
    background-color: #7f51bc;
}

.alert-cookie .btn {
    background-color: white !important;
    border: white;
    color: #7f51bc !important;
}

.fs-1 {
    font-size: calc(1.375rem + 1.5vw) !important;
}


.ball {
    --delay:0s;
    --size:0.4;
    --speed: 20s;
    aspect-ratio: 1;
    width: calc( 150% * var(--size) );
    background: linear-gradient(259.53deg, #ffffff80 6.53%, #51bcb6 95.34%);
    filter: blur(50vw);
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 0;
    animation: loop var(--speed) infinite linear;
    animation-delay: var(--delay);
    transform-origin: 50% 50%;
    opacity: 0.6;
}

@keyframes loop {
    0% {
        transform: translate3D(0%, 51%, 0) rotate(0deg);
    }
    5% {
        transform: translate3D(8%, 31%, 0) rotate(18deg);
    }
    10% {
        transform: translate3D(22%, 13%, 0) rotate(36deg);
    }
    15% {
        transform: translate3D(40%, 2%, 0) rotate(54deg);
    }
    20% {
        transform: translate3D(46%, 21%, 0) rotate(72deg);
    }
    25% {
        transform: translate3D(50%, 47%, 0) rotate(90deg);
    }
    30% {
        transform: translate3D(53%, 80%, 0) rotate(108deg);
    }
    35% {
        transform: translate3D(59%, 98%, 0) rotate(125deg);
    }
    40% {
        transform: translate3D(84%, 89%, 0) rotate(144deg);
    }
    45% {
        transform: translate3D(92%, 68%, 0) rotate(162deg);
    }
    50% {
        transform: translate3D(99%, 47%, 0) rotate(180deg);
    }
    55% {
        transform: translate3D(97%, 21%, 0) rotate(198deg);
    }
    60% {
        transform: translate3D(80%, 7%, 0) rotate(216deg);
    }
    65% {
        transform: translate3D(68%, 25%, 0) rotate(234deg);
    }
    70% {
        transform: translate3D(59%, 41%, 0) rotate(251deg);
    }
    75% {
        transform: translate3D(50%, 63%, 0) rotate(270deg);
    }
    80% {
        transform: translate3D(38%, 78%, 0) rotate(288deg);
    }
    85% {
        transform: translate3D(21%, 92%, 0) rotate(306deg);
    }
    90% {
        transform: translate3D(3%, 79%, 0) rotate(324deg);
    }
    100% {
        transform: translate3D(0%, 51%, 0) rotate(360deg);
    }
}
.glow-container {
    overflow-x: hidden;
    overflow-y: hidden;
    position: fixed;
    width: 100%;
    min-height: 100vh;
}

.masthead .lead{
    transition-delay: 1s;
}

.reveal {
    position: relative;
    transform: translateY(150px);
    opacity: 0;
    transition: 1s all ease;
}

.reveal.active {
    transform: translateY(0);
    opacity: 1;
}


.typed-cursor {
    color: white;
    font-size: 3.5rem;
}

.swiper-button-next, .swiper-button-prev {
    color: white !important;
}

.swiper-button-next:hover, .swiper-button-prev:hover {
    cursor: grab;
}

.swiper-button-next {
    margin-right: 1rem;
    -webkit-animation: scrollRight 1.4s infinite;
    animation: scrollRight 1.4s infinite;
}

.swiper-button-prev {
    margin-left: 1rem;
    -webkit-animation: scrollLeft 1.4s infinite;
    animation: scrollLeft 1.4s infinite;
}

.fade-in-short {
    animation: fadeIn ease 1s;
    -webkit-animation: fadeIn ease 1s;
    -moz-animation: fadeIn ease 1s;
    -o-animation: fadeIn ease 1s;
    -ms-animation: fadeIn ease 1s;
}

.fade-in {
    animation: fadeIn ease 4s;
    -webkit-animation: fadeIn ease 4s;
    -moz-animation: fadeIn ease 4s;
    -o-animation: fadeIn ease 4s;
    -ms-animation: fadeIn ease 4s;
}
.masthead .fade-in {
    opacity: 0;
    transition: opacity 2s ease;
}

.masthead .fade-in.visible {
    opacity: 1;
}




@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    30% {
        opacity: 0;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

@keyframes scrollRight {
    0% {
        transform: translate(0, 0) scale(0.75);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }
    100% {
        transform: translate(100%) scale(0.75);
        opacity: 0;
    }
}

@keyframes scrollLeft {
    0% {
        transform: translate(0, 0) scale(0.75);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }
    100% {
        transform: translate(-100%) scale(0.75);
        opacity: 0;
    }
}

.swiper-slide {
    text-align: center;
    /* Center slide text vertically */
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-user-select: all;
    user-select: all;
    cursor: grab;
}



#mainNav.navbar-shrink {
    box-shadow: 0 0.125rem 0.375rem -0.0625rem #0000000a,
    0 0 0.0625rem 0.0625rem #0000000c !important;
    background: #fff!important;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.375rem -0.0625rem #0000000a,
    0 0 0.0625rem 0.0625rem #0000000c !important;
}

.shadow-lg {
    box-shadow: 0 1rem 2.5rem -0.5rem rgba(0, 0, 0, 0.15),
    0 0 1rem 0.125rem rgba(0, 0, 0, 0.05) !important;
}

#mainNav.navbar-shrink a {
    color: black;
}

#mainNav a {
    font-weight: 500;
    color: white;
    transition: .2s;
}

.navbar-brand {
    z-index: 1 !important;
}

#mainNav.navbar-shrink .navbar-brand {
    color: #7f51bc !important;
}


.navbar-nav .btn-turquoise:hover, .bg-turquoise .btn-turquoise:hover, .masthead .btn-turquoise:hover  {
    background-color: white !important;
    color: #51bcb6 !important;
}

.masthead-avatar {
    height: 100vh;
    padding-top: 5rem;
    z-index: -1;
    opacity: 0.97;
    filter: drop-shadow(0px 0px 150px #d8fffc87) brightness(1.2);
    animation: pulse-glow 20s ease-in-out infinite;
}

.btn:not(:disabled):not(.disabled).active, .btn:not(:disabled):not(.disabled):active {
    background-color: #51bcb6;
    color: white;
    box-shadow: 0 0 1rem #51bcb680 !important;
}

@keyframes pulse-glow {
    0% {
        filter: drop-shadow(0px 0px 125px #d8fffc50) brightness(1);
        opacity: 0.97;
    }
    50% {
        filter: drop-shadow(0px 0px 150px #d8fffc) brightness(1.025);
        opacity: 0.95;
    }
    100% {
        filter: drop-shadow(0px 0px 125px #d8fffc50) brightness(1);
        opacity: 0.97;
    }
}

.glow {
    animation: glow 2s infinite ease-in-out;
}


.masthead-avatar-overlay {
    z-index: -1;
    position: absolute;
    background: linear-gradient(to right, #19191900 15%, #7f51bcbf 100%);
    filter: drop-shadow(0rem 4px 10rem #aa8cfbc9);
    right: 0;
    bottom: 0;
    opacity: .9;
}

.about-avatar {
    position: relative;
    width: 12rem;
    height: 12rem;
    background: center / cover no-repeat url("../img/image-logo.jpg");
    overflow: hidden;
}

.about-avatar::after {
    content: "";
    position: absolute;
    inset: 0;
    background: center / cover no-repeat url("../img/portrait-photo.jpg");
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.about-avatar:hover::after {
    opacity: 1;
}


.bg-light {
    background-color: #f3f3f3 !important;
}

.page-section {
    background: white;
    padding: 8rem 0;
    overflow: hidden;
}

.text-white-soft {
    color: #ffffffbf !important;
}

#portfolio {
    background: white;
}

#portfolio .container-fluid .portfolio-box .portfolio-box-caption, #portfolio .container-sm .portfolio-box .portfolio-box-caption, #portfolio .container-md .portfolio-box .portfolio-box-caption, #portfolio .container-lg .portfolio-box .portfolio-box-caption, #portfolio .container-xl .portfolio-box .portfolio-box-caption, #portfolio .container-xxl .portfolio-box .portfolio-box-caption {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    height: 100%;
    position: absolute;
    bottom: 0;
    text-align: center;
    opacity: 0;
    color: #fff;
    background: #51bcb6e6;
    transition: opacity 0.25s ease;
}

#portfolio .container-fluid .portfolio-box:hover .img-fluid {
    filter: grayscale(100);
}

#portfolio .container-fluid .portfolio-box .portfolio-box-caption .project-category, #portfolio .container-sm .portfolio-box .portfolio-box-caption .project-category, #portfolio .container-md .portfolio-box .portfolio-box-caption .project-category, #portfolio .container-lg .portfolio-box .portfolio-box-caption .project-category, #portfolio .container-xl .portfolio-box .portfolio-box-caption .project-category, #portfolio .container-xxl .portfolio-box .portfolio-box-caption .project-category {
    font-family: "Merriweather Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

#portfolio .container-fluid .portfolio-box .portfolio-box-caption .project-name, #portfolio .container-sm .portfolio-box .portfolio-box-caption .project-name, #portfolio .container-md .portfolio-box .portfolio-box-caption .project-name, #portfolio .container-lg .portfolio-box .portfolio-box-caption .project-name, #portfolio .container-xl .portfolio-box .portfolio-box-caption .project-name, #portfolio .container-xxl .portfolio-box .portfolio-box-caption .project-name {
    font-weight: 500;
    font-size: 1.5rem;
    line-height: 1.2;
}

#portfolio .container-fluid .portfolio-box:hover .portfolio-box-caption, #portfolio .container-sm .portfolio-box:hover .portfolio-box-caption, #portfolio .container-md .portfolio-box:hover .portfolio-box-caption, #portfolio .container-lg .portfolio-box:hover .portfolio-box-caption, #portfolio .container-xl .portfolio-box:hover .portfolio-box-caption, #portfolio .container-xxl .portfolio-box:hover .portfolio-box-caption {
    opacity: 1;
}

#about .row {
    max-width: 1200px;
    margin: auto;
}

#fullPortfolio {
    display: none;
}

.open {
    display: block !important;
}

@media (min-width: 576px) {

    #about h3 {
        margin-bottom: 1rem !important;

    }
}

@media (max-width: 575.98px) {
    #about .col-12 {
        text-align: center !important;
    }

    #about p {

        padding-right: 15px;
        padding-left: 15px;
    }
}
.navbar-collapse {
    height: auto!important;
    opacity: 1!important;}

@media (max-width: 991.98px) {

    #mainNav a {background: none !important; text-shadow: none !important;}
    .collapse {
        overflow: hidden;
        height: 0;
        opacity: 0;
        background: transparent;
        box-shadow: 0 0 0 0 transparent;
        transition:
                height 0.4s ease,
                opacity 0.4s ease,
                background 0.4s ease,
                box-shadow 0.4s ease;
    }

    .collapse.opening,
    .collapse.closing {
        display: block;
    }

    .collapse.open {
        height: auto;
        opacity: 1;
    }
    .navbar .collapse.open {
        box-shadow: 0 0 25rem 25rem #00000080;
        background: #00000080;
    }
    .navbar-shrink .collapse.open {
        box-shadow: none;
        background: none;
    }
    .navbar-collapse  {
        line-height: 2.5rem;
    }
    #mainNav li {

        margin-left: unset !important;
        margin-right: auto !important;
    }

    #mainNav .btn {
        background: none !important;
        border: none !important;
        box-shadow: none !important;
        color: #7f51bc !important;
    }
}

@media (min-width: 1620px) {
    .masthead .col-custom-10 {
        -webkit-box-flex: 0;
        -ms-flex: 0 0 83.333333%;
        flex: 0 0 83.333333%;
        max-width: 83.333333%;
    }
}

@media (min-width: 1200px) {
    .navbar-expand-lg .navbar-nav .nav-link {
        padding-right: 1rem;
        padding-left: 1rem;
    }
}

/* === TABLET a menší === */
@media (max-width: 991.98px), (max-height: 820px) {
    .responsive-display-4, .typed-cursor {
        font-size: 2.75rem; line-height: 3rem;
    }
    .typed-cursor {height: 2.75rem!important;}
    .responsive-h2 {
        font-size: 1.75rem; line-height: 2rem;
    }
}

/* === MOBIL === */
@media (max-width: 767.98px), (max-height: 750px) {
    .responsive-display-4, .typed-cursor{
        font-size: 1.5rem;
    }
    .typed-cursor {height: 2.5rem!important;}
    .responsive-h2 {
        font-size: 1.5rem;
    }
}