/* open-sans-300 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 300;
  src: url('../fonts/open-sans-v34-latin-300.woff2') format('woff2'), /* Chrome 36+, Opera 23+, Firefox 39+ */
       url('../fonts/open-sans-v34-latin-300.woff') format('woff'); /* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

/* open-sans-regular - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/open-sans-v34-latin-regular.woff2') format('woff2'), /* Chrome 36+, Opera 23+, Firefox 39+ */
       url('../fonts/open-sans-v34-latin-regular.woff') format('woff'); /* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

/* open-sans-600 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 600;
  src: url('../fonts/open-sans-v34-latin-600.woff2') format('woff2'), /* Chrome 36+, Opera 23+, Firefox 39+ */
       url('../fonts/open-sans-v34-latin-600.woff') format('woff'); /* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

/* open-sans-700 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 700;
  src: url('../fonts/open-sans-v34-latin-700.woff2') format('woff2'), /* Chrome 36+, Opera 23+, Firefox 39+ */
       url('../fonts/open-sans-v34-latin-700.woff') format('woff'); /* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */
}

/* lato-regular - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Lato';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/lato-v24-latin-regular.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

/* lato-700 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Lato';
  font-style: normal;
  font-weight: 700;
  src: url('../fonts/lato-v24-latin-700.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

/* lato-900 - latin */
@font-face {
  font-display: swap; /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
  font-family: 'Lato';
  font-style: normal;
  font-weight: 900;
  src: url('../fonts/lato-v24-latin-900.woff2') format('woff2'); /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

:root {
  --highlight_color: rgba(204, 229, 255, 0.8);
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-sizing: border-box;
}

html {
    min-height: 100vh;
    width: 100%;
}

body {
  margin: 0;
  padding: 0;
  font-size: 100%;
  font-family: 'Open Sans', sans-serif;
  color: white;
  min-height: 100vh;
  background-image: url("../images/ngc7000_cut_rotated_2.jpg");
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
}

/* Mobile fallback: avoid janky fixed backgrounds on iOS/Android */
@media (max-width: 768px) {
  body {
    background-attachment: scroll;
    background-position: center top;
  }
}

.main-container {
  display: flex;
  flex-wrap: wrap;
  min-height: 100vh;
}


/*  HEADER */
.header_container {
  display: flex;
  width: 100%;
  padding-top: 0.3em;
  padding-bottom: 0.3em;
  background-color: rgba(0,0,0,0.15);
  justify-content: center;
}

.header_line {
  display: block;
  width: 80%;
}

.header_line_logo {
  height: 100%;
  float: left;
}

.header_line_navigation {
  display: flex;
  height: 100%;
  float: right;
  padding-top: 0.3em;
  padding-bottom: 0.3em;
}

.header_line_navigation_border {
  border-left: 1px solid rgba(255,255,255,0.5);
}

.header_line_navigation_element {
  display: inline;
  margin: 0.5em;
}

.header_line_navigation_element_link {
  color: lightgrey;
  text-decoration-line: None;
  font-size: 0.9em;
}

@media screen and (min-width: 700px) {
  .header_line_navigation_element_link {
    font-size: 1.1em;
  }
}

@media screen and (min-width: 920px) {
  .header_line_navigation_element_link {
    font-size: 1.2em;
  }
}


/* MAIN */
.main_content {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  min-height: 90vh;
}

.titel_container {
  margin-top: 0.25em;
  width: 100%;
  text-align: center;
  padding-top: 1em;
  padding-bottom: 2em;
}

.content_container {
  display: flex;
  flex-wrap: wrap;
  margin-top: 0.25em;
  width: 100%;
  align-items: flex-end;
  padding-bottom: 2em;
}

.bold {
  font-weight: bold;
}

.center {
  align-items:center;
}

.text_box {
  text-align: justify;
  padding: 1em;
  background-color: rgba(0,0,0,0.3);
  margin: 1em;
}

.text_box a {
  color: white;
}

@media screen and (min-width: 920px) {
  .titel_container {
    width: 50%;
    padding-top: 2em;
    padding-bottom: 1em;
  }
  .content_container {
    width: 50%;
    padding-top: 1em;
    padding-bottom: 1em;
  }

  .text_box {
    padding: 3em;
    margin: 2em;
    font-size: 1.1em;
  }
}

.titel_left, .titel_right {
  font-family: Lato, sans-serif;
  display: contents;
  font-size: 2.5em;
}

.titel_left {
  font-size: 2.9em;
  font-weight: bold;
}

@media screen and (min-width: 700px) {
  .titel_left {
    font-size: 3.7em;
  }

  .titel_right {
    font-size: 3.3em;
  }
}
@media screen and (min-width: 920px) {
  .titel_left {
    font-size: 6.0em;
    margin-top: 0.2em;
    display: block;
  }

  .titel_right {
    font-size: 5.3em;
    display: block;
  }
}

.content_line {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  justify-content: center;
}

.content_box {
  width: 100%;
  border-radius: 0.6em;
  padding: 1em 1em 0.5em 1em;
  margin: 0.5em 2em 0.5em 2em;
  background-color: rgba(0,0,0,0.3);
  transition: .5s ease;
}


@media screen and (min-width: 700px) {
    .content_line {
      display: flex;
      flex-wrap: wrap;
      width: 100%;
    }

    .content_box {
      width: 30%;
    }
}

@media screen and (min-width: 920px) {
    .content_box {
      width: 28%;
    }
}

.content_field {
  display: flex;
  border-radius: 0.3em;
  /*border-radius: 4px;*/
  border: 2px solid;
  aspect-ratio: 3.8/2;
}

.dark {
  background-color: rgba(0,0,0,0.5);
}

.content_field_img {
  height: inherent;
  width: 100%;
  transition: .5s ease;
}

.opaque {
  opacity: 0.9;
}

.content_text_titel {
  margin: 0.2em;
  margin-top: 0.4em;
  font-size: 1em;
  font-weight: bold;
}

.content_text_description {
  margin: 0.2em;
  font-size: 0.8em;
}

@media screen and (min-width: 700px) {
  .content_text_titel {
    font-size: 1.2em;
  }

  .content_text_description {
    font-size: 0.9em;
  }
}


/*  NEWS ARTICLE BANNER */
#article-banner {
  overflow: hidden;
  width: 90%;
  margin: 1.5em auto 1em auto;
  border-radius: 0.6em;
  transition: .5s ease;
}

.article-preview {
  display: inline-block;
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  min-height: 263px;
  margin: 0;
  padding: 1em;
  text-align: center;
  background-color: rgba(0,0,0,0.3);
  border-radius: 0.6em;
  position: relative;
  overflow: hidden;
  /* transition: opacity 1.5s ease;  Add a transition effect to the opacity property */
  /* opacity: 1;  Initial opacity value */
  /* transition: 0.5s ease; */
}

.image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  height: 150px;
}

.overlay {
  position: absolute;
  bottom: 4px;
  left: 0;
  width: calc(100% - 4px);
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  justify-content: flex-end;
  margin: 0px 2px 2px 2px;
  border-radius: 0.6em;
  padding: 5px;
}

.index-info {
  margin-right: 0.3em;
}

.toggle-button {
  background-color: transparent;
  color: white;
  border: none;
  cursor: pointer;
  font-size: 16px;
  margin-right: 5px;
  padding: 0px 5px 0px 5px;
}

.article-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0.6em;
  border: 2px solid;
}

.article-info {
  margin-top: 10px;
}

.article-info p {
  margin: 5px 0;
}

@media screen and (min-width: 700px) {
  #article-banner {
    margin: 2em auto 1em auto
  }

  .article-preview {
    min-height: 341px;
  }
  .image-container {
    height: 250px;
  }
}

@media screen and (min-width: 920px) {
  #article-banner {
    margin: 8em auto 1em auto
  }

  .image-container {
    height: 350px;
  }
}


/*  HOVER PROPERTIES */
.content_box:hover img, .article-preview:hover img  {
  opacity: 0.8;
}

.content_box:hover, #article-banner:hover {
  color: var(--highlight_color);
  box-shadow: 0 0 1px 2px var(--highlight_color);
}