:root {
  --globalBG: hsl(42,36%,82%);
  --iFrameBG: hsla(0,0%,100%,0.48);
  --HeaderText: hsla(42,6%,12%,0.92);
  --lightShadow: hsla(0,0%,92%,0.86);
  --darkShadow: hsla(0,0%,6%,0.86);
  --Smoke: hsla(0,0%,12%,0.64);
  --overlayBG: hsla(0,0%,0%,0.72);
  --Accent: hsl(336,75%,32%);
  --AccentShadow: hsla(336,75%,32%,0.72);
  --Links: hsl(204,75%,32%);
  --FooterBG: hsl(42,6%,12%);
  --ScrollBar: 12px;
  --minWidth: 360px;
  --HeaderHeight: 72px;
  --NavHeight: 36px;
  --smallFootHeight: 36px;
}

::-webkit-scrollbar {
  background: inherit;
  width: var(--ScrollBar);
  height: var(--ScrollBar);
}
::-webkit-scrollbar-thumb {
  background: var(--Smoke);
  box-shadow: inset 0 0 var(--ScrollBar) var(--darkShadow);
  border-radius: var(--ScrollBar);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--Accent);
  box-shadow: inset 0 0 var(--ScrollBar) var(--darkShadow);
}
::-webkit-scrollbar-thumb:active {
  background: var(--Accent);
  box-shadow: inset 0 0 var(--ScrollBar) var(--darkShadow);
}
::-webkit-scrollbar-track {
  background: inherit;
  box-shadow: inset 0 0 var(--ScrollBar) var(--darkShadow);
  border-radius: var(--ScrollBar);
}
::-webkit-scrollbar-track-piece {
  background: inherit;
}
::-webkit-scrollbar-corner {
  background: inherit;
}

/*
.scrollAction {        /* without setting a BG-color the thumb isn't colored on action (don't know why)
  background: #FFF0;   /* instead of transparent, a white background appears during scrolling (scrollEvent() in main.js) - in iFrame-Content (content.css) it works
}
*.scrollAction::-webkit-scrollbar-thumb {
  background-color: var(--Accent);
}
*/

@font-face {
  font-family: 'Alegreya Sans';
  font-weight: 400;
  src: url('https://www.altstadt-teterow-ev.de/_fonts/AlegreyaSans-Regular.ttf') format('truetype');
  font-display: swap;
}
@font-face {
  font-family: 'Alegreya Sans';
  font-weight: 500;
  src: url('https://www.altstadt-teterow-ev.de/_fonts/AlegreyaSans-Medium.ttf') format('truetype');
  font-display: swap;
}
@font-face {
  font-family: 'Open Sans';
  src: url('https://www.altstadt-teterow-ev.de/_fonts/OpenSans-VariableFont_wdth,wght.ttf') format('truetype');
  font-display: swap;
}   /* http://www.apache.org/licenses/LICENSE-2.0  https://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=OFL_web&_sc=1 */

#defineSVG {
  position: absolute;
  width: 0;
  height: 0;
}

* {
  box-sizing: border-box;
  margin: 0;
  border: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-decoration: none !important;
  white-space: nowrap;
}

body {
  position: relative;
	top: 0;
  display: block;
	width: 100%;
  min-width: var(--minWidth);
  overflow-x: hidden;
	overflow-y: scroll;
  background-color: var(--globalBG);
  font-family: 'Alegreya Sans', sans-serif;
  font-size: 100%;
}
body::-webkit-scrollbar {
  display: none;
}
.scrollBack {  /* solution or workaround ??? */
  transition: none !important;
  scroll-behavior: auto !important;
  overflow-y: auto;
}

#background {
  visibility: hidden;
  position: fixed;
  z-index: 0;
  top: 0;
  bottom: 0;
  display: block;
  width: 100vw;
  height: 100vh;
}
.showBG {
  background-image: url('images/nr28_2019-10-06_1080_b.jpg');
  background-image: -webkit-image-set(url('images/nr28_2019-10-06_1080_b.webp') 1x);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-attachment: local;
  overflow: hidden;
  visibility: visible !important;
}

header {
  position: fixed;
  top: 0;
  z-index: 60;
  display: flex;
  width: 100%;
  min-width: var(--minWidth);
  height: var(--HeaderHeight);
  align-items: center;
  justify-content: space-between;
  background-color: var(--globalBG);
}

header .Logo {
  height: calc(var(--HeaderHeight) * 1.618);
  margin-left: 18px;
}
header .Logo #HeaderLogo {
	fill: var(--HeaderText);
}
header .Logo #HeaderLogoShadow {
	fill: none;
}

h1 {
  width: 100%;
  color: var(--HeaderText);
  text-align: center;
  vertical-align: middle;
  font-size: calc(24px + (100vw - 360px) / 36);
  font-weight: 500;
  letter-spacing: 0.08em;
}

main {
  min-height: calc(100vh - var(--HeaderHeight));
}

nav {
  position: fixed;
  top: var(--HeaderHeight);
  z-index: 100;
  display: flex;
  flex-direction: row;
  align-items: center;
  width: 100%;
  min-width: var(--minWidth);
  height: var(--NavHeight);
  background-color: var(--globalBG);
  padding: 3px 0;
  font-size: 1em;
  letter-spacing: 0.02em;
  font-weight: 400;
}

#navContainer {
  display: flex;
  flex-direction: row;
  width: 100%;
  justify-content: space-around;
}

.navi a {
  margin: 2px;
  border-radius: 36px;
  padding: 6px 12px;
  vertical-align: middle;
  text-decoration: none;
  color: var(--Accent);
}

.navi a.activeBtn {
  background-color: var(--Accent);
  box-shadow: inset 0 0 12px var(--Smoke);
  color: white;
}

section * {
  transition: all 0.24s;
}

iframe {
  position: relative;
  top: calc(var(--HeaderHeight) + var(--NavHeight));
  z-index: 40;
  display: flex;
  width: 100%;
  min-width: var(--minWidth);
  height: 72vh;  /* if javascript is not supported */
  border: 0 !important;
  background-color: var(--iFrameBG);
  box-shadow: 0 0 12px var(--FooterBG);
}

footer {
  position: fixed;
  bottom: 0;
  display: flex;
  width: 100%;
  min-width: var(--minWidth);
  align-items: center;
  justify-content: space-around;
  background-color: var(--FooterBG);
  color: var(--lightShadow);
  font-family: 'Open Sans', sans-serif;
  font-size: 0.92em;
  font-weight: 300;
}

.footer a {
  padding: 4px 8px;
  text-decoration: none;
  letter-spacing: 0.06em;
  color: var(--globalBG);
}

#smallFoot {
	z-index: 80;
	height: var(--smallFootHeight);
  padding: 0 8%;
	transition: 0.42s;
}

#bigFoot {
	z-index: 82;
	visibility: hidden;
	height: auto;
}

#BigFootContainer {
  display: grid;
  grid-template-columns: 1fr;
  grid-gap: 8px;
  margin-bottom: 6px;
  padding: 6px;
}
#BigFootContainer p {
  line-height: 128%;
  letter-spacing: 0.02em;
}

.BigFootContent {
  padding: 8px;
  color: var(--globalBG);
  text-align: left;
}

footer .Logo {
  align-self: flex-start;
  height: 240px;
  margin-top: -21%;
  margin-bottom: -15%;
  fill: var(--globalBG);
}

.BigFootContent p {
  font-size: 1.12em;
  letter-spacing: 0.02em;
  line-height: 120%;
}
.BigFootContent a {
  padding: 0;
  font-size: 1.12em;
  letter-spacing: 0.024em;
  line-height: 128%;
}

@media (max-width: 360px) {
  h1 {
    font-size: 24px;
  }
}

h5 {
  font-size: 1.5em;
  letter-spacing: 0.06em;
  line-height: 180%;
}

@supports (position: sticky) {
	header{
		position: relative;
	}
	nav {
		position: sticky;
		top: 0;
	}
	iframe {
		top: 0;
	}

  @media screen and (max-width: 960px) {
		#smallFoot {
			visibility: visible !important;
		}
		#bigFoot {
      position: sticky;
			bottom: auto;
			visibility: visible !important;
			padding: 0;
		}
		#showBigFoot {
			display: none;
		}
		#hideBigFoot {
			display: none;
		}
	}
}

@media (min-width: 680px) {
  @supports (grid-template-columns: auto) {
    #BigFootContainer {
      grid-template-columns: 1fr 1fr;
    }
    #BFC_ATeV h5 {
      padding-top: 18px;
    }
  }
}

.closeAnimation {
  transition: all 0.36s !important;
  border-radius: 24vw;
  overflow: hidden;
  opacity: 0.42;
  transform: scale(0);
  transform-origin: center bottom;
}

@media screen and (min-width: 961px) {

  :root {
    --HeaderText: hsl(0,0%,100%);
    --NavHoverBG: hsl(42,36%,72%);
    --FooterBG: hsla(42,6%,12%,0.96);
    --HeaderHeight: 128px;
  }

  body {
    height: 100vh;
    background-color: var(--globalBG);
    overflow: hidden;
  }
  #background {
    position: absolute;
  }
  .showBG {
    background-image: url('images/nr28_2019-10-06_1920.jpg');
    background-image: -webkit-image-set(url('images/nr28_2019-10-06_1920.webp') 1x);
  }

  header{
    position: absolute;
    height: var(--HeaderHeight);
    background-color: transparent;
  }

  header .Logo {
    height: calc(var(--HeaderHeight) * 1.618);
    margin-left: 36px;
  }
  header .Logo #HeaderLogo {
  	fill: black;
  }
  header .Logo #HeaderLogoShadow {
  	fill: white;
  }

  h1 {
    margin-right: calc(72px + 1.2%);
    font-size: calc(72px - ((1920px - 100vw) * 0.025));
    color: var(--HeaderText);
    text-shadow: 0 0 12px var(--darkShadow), 0 0 4px var(--darkShadow);
  }

  main {
    position: relative;
    top: var(--HeaderHeight);
    display: flex;
  }

  nav {
    position: relative;
    top: 0;
    left: 0;
    flex-direction: column;
    min-width: 0;
    width: auto;
    height: 100%;
    margin-right: 32px;
    border: 1px solid var(--Accent);
    border-left: 0 !important;
    border-radius: 0 24px 24px 0;
    padding: 12px;
    box-shadow: 2px 4px 18px 6px var(--AccentShadow);
  }
  nav:hover {
    box-shadow: 2px 4px 18px 6px var(--AccentShadow), inset 0 0 2px var(--darkShadow);
    transition: 0.18s;
  }

  #navContainer {
    flex-direction: column;
    align-items: flex-start;
    width: auto;
  }

  .navi a {
    width: auto;
    margin: 4px;
    padding: 8px 15px;
  }
  .navi a.activeBtn {
    box-shadow: inset 0 0 18px var(--Smoke);
  }
  .navi a:hover:not(:active) {
    background-color: var(--NavHoverBG);
    box-shadow: inset 0 0 2px var(--Smoke);
    transition: 0.24s;
  }

  section {
    position: relative;
    top: 0;
    right: 0;
    z-index: 40;
    display: flex;
    width: 100%;
    padding: 0 24px 24px 0;
    justify-content: space-around;
  }

  iframe {
    top: 0;
    max-width: 1280px;
    max-height: calc(100vh - var(--HeaderHeight) - var(--smallFootHeight) - 24px) !important;
    border-radius: 18px;
    padding: 21px 1px;
    box-shadow: 0 0 3px var(--darkShadow), inset 0 0 2px white;
  }

  footer {
    position: absolute;
    background-color: var(--FooterBG);
    box-shadow: 0 0 4px var(--FooterBG), inset 0 0 3px var(--Smoke);
  }

  #smallFoot:hover {
  	height: calc(var(--smallFootHeight) + 6px);
  }
  #showBigFoot {
  	align-self: flex-start;
  	width: var(--smallFootHeight);
  	height: var(--smallFootHeight);
  	margin-top: -4px;
  	border-radius: 100%;
  	background-color: var(--FooterBG);
  	box-shadow: inset 0 0 6px var(--Accent);
    cursor: pointer;
  }
  #smallFoot:hover #showBigFoot {
  	width: calc(var(--smallFootHeight) + 6px);
  	height: calc(var(--smallFootHeight) + 6px);
  	margin-top: -7px;
  	transition: 0.42s;
  	background-color: var(--globalBG);
  	box-shadow: 0 0 4px 1px var(--Smoke), inset 0 0 6px var(--darkShadow);
  }
  #smallFoot:hover #showBigFoot:hover {
  	width: calc(var(--smallFootHeight) + 12px);
  	height: calc(var(--smallFootHeight) + 12px);
  	margin-top: -12px;
    box-shadow: 0 0 4px 1px var(--AccentShadow), inset 0 0 6px var(--darkShadow);
  }
  #ArrowUp {
  	fill: var(--globalBG);
  	stroke: var(--globalBG);
  	stroke-width: 4;
  	stroke-linecap: round;
    stroke-linejoin: round;
  	transition: 0.42s;
    transform-origin: center 48%;
  }
  #smallFoot:hover #ArrowUp {
    fill: var(--Accent);
    stroke: transparent;
    transition: inherit;
  }

  #hideBigFoot {
  	position: absolute;
  	top: -10px;
  	right: 12px;
  	width: 48px;
  	height: 48px;
  	border-radius: 100%;
    background-color: var(--globalBG);
  	box-shadow: 0 0 4px 1px var(--Smoke), inset 0 0 6px var(--darkShadow);
    cursor: pointer;
  }
  #hideBigFoot:hover {
    box-shadow: 0 0 4px 2px var(--AccentShadow), inset 0 0 6px var(--darkShadow);
  }
  #hideBigFoot #Cross {
  	fill: none;
  	stroke: var(--Accent);
  	stroke-width: 6;
  	stroke-linecap: round;
    stroke-linejoin: round;
  }
  #bigFoot:hover #hideBigFoot , #bigFoot:hover #Cross {   /* JS can't focus on #bigFoot */
    transition: 0.24s;
  }
  #hideBigFoot:hover #Cross , #hideBigFoot:focus #Cross {
    stroke-width: 7.2;
  }
  @supports (d: path('')) {
    #smallFoot:hover #ArrowUp {
    	d: path('M24.6 80 L50 10 L75.4 80 Q50 42 24.6 80');
    }
    #hideBigFoot:hover #Cross , #hideBigFoot:focus #Cross {
    	d: path('M25 55 L50 80 L75 55 M50 60 L50 20');
    }
  }
  @supports not (d: path('')) {
    #smallFoot:hover #showBigFoot{
      transform: translate(0%,-12%);
    }
    #smallFoot:hover #ArrowUp {
    stroke-width: 1;
  	stroke: var(--Smoke);
    transform: scale(0.64, 1.8);
    }
    #hideBigFoot:hover , #hideBigFoot:focus {
    	transform: rotate(90deg);
    }
  }

  .BigFootContent {
    padding: 8px 12px;
  }

  footer .Logo {
    height: 320px;
    margin-left: -6%;
  }

  #BFC_ATeV h5 {
    padding-top: 52px;
  }
  @media  (min-width: 1280px) {
    #BigFootContainer {
      display: inline-flex;
      flex-direction: row;
    }
    @supports (grid-template-columns: auto) {
      #BigFootContainer {
        grid-template-columns: 1fr 1fr 1fr 1fr;
      }
    }
    footer .Logo {
      margin-left: 0;
    }
    #BFC_Kontakt h5, #BFC_Spenden h5 {
      padding-top: 52px;
    }
  }

  @media screen and (min-width: 1921px) {
    #maxWidth {
      position: fixed;
      top: 0;
      bottom: 0;
      display: block;
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      left: calc((100vw - 1920px) / 2);
      max-width: 1920px;
      box-shadow: 0 0 1.8vw, var(--FooterBG);
    }
    #background {
      max-width: 1920px;
    }
    h1 {
      font-size: 72px;
    }
  }
}

#gallery {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 120;
  display: none;  /* block - is set by JS*/
  justify-content: space-around;
  width: 100vw;
  height: 100vh;
  background-color: var(--overlayBG);
  visibility: hidden;
  outline: none;
  transform-origin: center bottom;
  will-change: transition, border-radius, opacity, transform;
}