:root {
    /* CONTENT */
    --max-width: 100%;
    --gap: 2rem;
    --logo-width: 150px;
    --padding-content: 2rem;
    --button-size: 4.5rem;
    --transition: all 350ms ease-in-out;
    --font-body: "FS Me", sans-serif;
    --wave-height: 40px;
    --slider-gap: 5px;
    --width-content: calc(100vw - 40px);
    --max-width-content: 1600px;
    --max-width-menu: calc(1400px - 40px);
    --header-height: 70px;
    --logo-heigth: 15px;

    /* COLORS */
    --white: #ffffff;
    --black: #000000;
    --gray-light: #E5E5E9;
    --darkgray: #454749;
    --green: #719751;
    --blue: #026488;
    --green-light: #a3c95c;
    --green-yellow: #80933a;

    --primary-clr: var(--blue);
    --secondary-clr: var(--green);
    --tertiary-clr: var(--yellow);
    --box-shadow: 0 1px 2px 0 rgba(15, 5, 5, 0.3), 0 1px 3px 1px rgba(10, 10, 10, 0.15);

    --text-clr: var(--darkgray);
    --link-clr: var(--black);
    --hl-clr: var(--black);
    --bg-clr: var(--blue);
    --footer-clr: var(--green-light);

    --select-bg-clr: var(--black);
    --select-clr: var(--white);

    --scrollbar-foreground: var(--blue);
    --scrollbar-background: var(--white);
}


/* STYLED SCROLLBARS */
html {
}
html,
body,
.styled-scrollbars {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scrollbar-color: var(--scrollbar-foreground) var(--scrollbar-background);
}

body::-webkit-scrollbar,
.styled-scrollbars::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

body::-webkit-scrollbar-thumb,
.styled-scrollbars::-webkit-scrollbar-thumb {
    background: var(--scrollbar-foreground);
    box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
}

body::-webkit-scrollbar-track,
.styled-scrollbars::-webkit-scrollbar-track {
    background: var(--scrollbar-background);
    box-shadow: inset 0 0 6px rgba(0, 0, 0, .3);
}

/* DEFAULT */
*,
*:after,
*:before {
    box-sizing: border-box;
    outline: none;
}

/* SELECTION */
::selection {
    background: var(--select-bg-clr);
    color: var(--select-clr);
}
a[href*="#skip"].invisible {
    height: 0;
    width: 0;
    position: absolute;
    opacity: 0;
}
a[href*="#skip"].invisible:focus-visible{
    display: block;
    color: var(--color-white);
    background-color: var(--color-lightblue);
    clip: auto;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0.25rem 0.75rem;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    font-weight: 500;
    background-size: 0 0;
    z-index: 15;
    opacity: 1;
}
/* TYPO */
html {
    --font-size: 62.5%;
    font-size: var(--font-size);
    font-family: var(--font-body);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: var(--text-clr);
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + var(--wave-height));
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    font-variant: lining-nums;
    caret-color: transparent;
}
body {
    font-size: 2rem;
    line-height: 1.5;
    margin: 0;
    padding: 0;
    background-color: var(--bg-clr);
}
h1, h3, h4{
    color: var(--white);
    color: var(--darkgray);
}
h1 {
    font-style: normal;
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--white);
}
h3 {
    color: var(--blue);
    font-weight: 900;
    font-style: bold;
    font-size: 2.2rem;
}
h4 {
    font-size: 2.2rem;
}
a {
    font-style: normal;
    font-weight: 400;
    text-decoration: none;
    color: var(--darkgray);
    white-space: nowrap;
}
a:hover {
    transition: 0.3s;
}

/* HEADER */ 
#header::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--color-white);
    -webkit-box-shadow: 0px 9px 44px -7px rgba(0,0,0,0.44);
    -moz-box-shadow: 0px 9px 44px -7px rgba(0,0,0,0.44);
    box-shadow: 0px 9px 44px -7px rgba(0,0,0,0.44);
}
#header.before-visible::before {
    opacity: 1;
}
#header{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: var(--white);
    line-height: 21.6px;
    box-shadow: var(--box-shadow);
    z-index: 100;
}
#header .inside {
    height: 100%;
    margin: 0 auto;
    width: var(--width-content);
    max-width: var(--max-width-content);
    display: flex;
    gap: 15.5px;
    justify-content: flex-end;
    flex-wrap: wrap;
    align-items: center;
    position: sticky;
    z-index: 120;
}
#header .header_text {
    display: none;
    color: var(--darkgray);
}
/* LOGO */
#header a.logo,
#header .logo svg {
    display: flex;
    width: auto;
    height: 32px;
    left: 0;
    position: absolute;
    flex-direction: column;
    justify-content: center;
}


/* NAVIGATION */
#header.header-nav-open{
    z-index: 105;
}
.mod_customnav.header {
    position: fixed;
    z-index: 1;
    overflow: auto;
    top: var(--header-height);
    left: 0;
    width: 100vw !important;
    max-width: 100vw !important;
    height: 100vh;
    background-color: var(--bg-clr);
    transition: ease 0.3s;
    opacity: 0;
    visibility: hidden;
}
.mod_customnav.header.active {
    overflow: scroll;
    overflow-x: hidden;
    opacity: 1;
    visibility: visible;
}
.level_1  {
    margin: auto;
    max-width: var(--max-width-menu);
    margin-bottom: 3rem;
    margin-top: 6rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    list-style-type: none;
}
.level_1 li strong, 
.level_1 a {
    color: var(--color-white);
    font-size: 2.5rem;
    text-decoration: none;
    line-height: 3.5rem;
    transition: 0.3s;
}
li a:focus-visible, 
li a:hover {
    text-decoration: underline;
    text-decoration-thickness: from-font;
}
.level_1 li strong {
    text-decoration-line: underline;    
    text-decoration-thickness: from-font;
}
.hamburger {
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 27px;
    height: 27px;
    padding: 10px;
    box-sizing: content-box;
    margin-left: auto;
    z-index: 1000;
}
.hamburger:hover, 
.hamburger:focus-visible {
    background-size: 0%;
}
.hamburger:focus-visible {
    border: 2px solid var(--white);
    border-radius: 4px;
    transition: ease 0.3s;
}
.hamburger span {
    display: block;
    width: 100%;
    height: 1px;
    background-color: var(--darkgray);
    border-radius: 3px;
    transition: all 0.3s;
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 7px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -7px);
}

main {
    margin-top: 10rem;
}
main .inside > * {
    width: var(--width-content);
    max-width: var(--max-width-content);
    margin: 0 auto;
}
.btn-5 {
  display: flex;
  justify-content: center;
  max-width: max-content;
  border: 0 solid;
  box-shadow: inset 0 0 20px rgba(255, 255, 255, 0);
  outline: 1px solid;
  outline-color: rgba(255, 255, 255, .5);
  outline-offset: 0px;
  text-shadow: none;
  transition: all 1250ms cubic-bezier(0.19, 1, 0.22, 1);
} 

.btn-5:hover {
  border: 1px solid;
  box-shadow: inset 0 0 20px rgba(255, 255, 255, .5), 0 0 20px rgba(255, 255, 255, .2);
  outline-color: rgba(255, 255, 255, 0);
  outline-offset: 15px;
  text-shadow: 1px 1px 2px #427388; 
}
/* start seite */

.center {
  text-align: center;
  margin: 2rem 0;
}
p:first-child {
    
    video::-webkit-media-controls {
        display: none !important;
    }

    video {
        pointer-events: none;
    }
}
h1 {
    font-size: 2em;
    margin: 0;
}
main {
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
main a {
  border-radius: 30px;
  font-size: 1.5rem;
  color: var(--blue);
  font-weight: bold;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: auto;
  padding: 1rem 10rem 1rem 10rem;
  text-align: center;
  background-color: var(--white);
}
body {
  color: var(--white);
  background-color: var(--blue);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: Arial, sans-serif;
}
body#start
.flex_video.collumn {
  height: 100%;
  width: 100%;
}
.video-container {
  overflow: hidden;
  border-radius: 20px;
}

.video-container img {
  width: 100%;
  height: 100%;
  border-radius: 20px;
}
.flex_video.collumn {
    margin-bottom: 4rem;
}


@-webkit-keyframes pulse {
  0% {
    -webkit-filter: drop-shadow( 0px 0px 0px  rgba(2, 100, 136, 0.9));
  }
  70% {
      -webkit-filter: drop-shadow( 0px 0px 20px rgba(2, 100, 136, 0));
  }
  100% {
      -webkit-filter: drop-shadow( 0px 0px 0px rgba(2, 100, 136, 0));
  }
}
@keyframes pulse {
  0% {
    -moz-filter: drop-shadow( 0px 0px 0px  rgba(2, 100, 136, 0.9));
    filter: drop-shadow( 0px 0px 0px  rgba(2, 100, 136, 0.9));
  }
  70% {
      -moz-filter: drop-shadow( 0px 0px 20px rgba(2, 100, 136, 0));
      filter: drop-shadow( 0px 0px 20px rgba(2, 100, 136, 0));
  }
  100% {
      -moz-filter: drop-shadow( 0px 0px 0px rgba(2, 100, 136, 0));
      filter: drop-shadow( 0px 0px 0px rgba(2, 100, 136, 0));
  }
}

@media (min-width: 370px) {
    :root {
       
    }
}

@media screen and (min-width: 480px) {

}
@media (min-width: 568px) {
    .flex_videos {
        
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        justify-content: space-between;
        width: 100%;
    }
    .flex_video.collumn {
        margin-bottom: 1rem;
    }
    
    main a {
        padding: 1rem 20rem 1rem 20rem;
    }
}
@media (min-width: 768px) {
    p:first-child {
        font-size: 3rem;
      }
      h1 {
        font-size: 3em;
      }
}
@media (min-width: 1024px) {
     #header .header_text {
        display: flex;
        position: relative;
        left: 50%;
        transform: translate(-50%, 0);
    }

    .flex_videos {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (min-width: 1200px) {
    p:first-child {
        font-size: 4rem;
      }
      h1 {
        font-size: 4em;
      }
 
}
@media (min-width: 1440px) {
    .flex_videos {
        gap: 150px;
    }

}
@media (min-width: 1900px) {

}

@keyframes rotate {
    from {
      transform: rotate(0deg);
    }
    to {
      transform: rotate(360deg);
    }
  }