styles.css

/* General Styles */
body {
  background-color: #000;
  color: #fff;
  font-family: sans-serif;
  box-sizing: border-box;
  height: 100%;
  overflow-x: hidden;
}

body.light-mode {
  background-color: #fff;
  color: #000;
}

/* Page Layout */
#page {
  max-width: 100vw;
  display: grid;
  grid-template-areas:
    "nav"
    "main"
    "footer"
    "illusion";
}

main {
  padding-left: 10vw;
  padding-right: 10vw;
  padding-top: 60px;
  padding-bottom: 150px;
  max-width: 100%;
  overflow: hidden;
}

main h2 {
  padding-top: 2%;
}

main h1 {
  padding-top: 10%;
}

/* Link Styles */
a {
  color: #ffffff;
  background-color: transparent;
  text-decoration: none;
  transition: color 0.3s ease; 
}

a:hover {
  color: var(--link-hover-color); 
}

a:active {
  color: #1bf1f1;
}

/* Light Mode Link Styles */
body.light-mode a {
  color: #000000;
}

body.light-mode a:hover {
  color: var(--link-hover-color);
}


/* --------------------------------- */
/* Navbar                            */
/* --------------------------------- */
#navbar-container {
    width: 100%;
    height: auto;
}


.topnav {
    background-color: rgba(0, 0, 0, 0.6);
    color: #fff;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1002;
    padding-top: 1%;
    transition: top 1s ease, background-color 0.3s ease;
    backdrop-filter: blur(10px);
}

body.light-mode .topnav {
    background-color: rgba(255, 255, 255, 0.6);
    color: #000;
}
.navbar-title {
    font-size: 24px;
    font-weight: bold;
    color: #fff; 
    text-decoration: none;
    z-index: 1002;
}

body.light-mode .navbar-title {
    color: #000; 
}

.hide-navbar {
  top: -60px;
}



.navbar-content {
  font-size: 0.8em;
  text-align: center;
  display: flex;
  justify-content: space-between; 
  align-items: center;         
  gap: 20px;
  z-index: 1002;
}

.topnav-left {
  padding-left: 10vw;
  grid-area: left;
  text-align: left;
  font-weight: bold;
  z-index: 1002;
}

.topnav-center {
  grid-area: center;
  text-align: center;
  gap: 30px;
  padding-top: 5px;
  z-index: 1002;
}

.topnav-center a {
  margin: 0 20px;
  text-decoration: none;
  transition: color 0.3s ease;
}



.topnav-right {
  padding-right: 10vw;
  grid-area: right;
  text-align: right;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 15px;
  z-index: 1002;
}


/* Overlay */
.screen-overlay {
  position: fixed;
  left: 0;
  width: 100vw;
  height: calc(100vh - 60px);
  height: 100vh;
  background: rgba(0,0,0,1);
  z-index: 1000; 
}
.screen-overlay.show {
  display: block;
}


.mobile-menu, .screen-overlay {
  display: none;
}

.mobile-menu {
  position: fixed;  
  top: 60px;
  left: 0;
  width: 100vw;
  height: calc(100vh - 60px); 
  background: #000; /* schwarz */
  color: #fff;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  z-index: 1001;
  display: none;
}

.mobile-menu.show {
  display: flex;/
}

body.light-mode .mobile-menu {
  background: #fff;
  color: #000;
}



body.light-mode .screen-overlay {
  background: rgba(255,255,255,1);
}

body.light-mode .mobile-menu a {
  color: #000;
}

body.light-mode .mobile-menu a:hover {
  color: var(--link-hover-color);
}

.burger {
  display: none; 
  cursor: pointer;
  font-weight: bold;
}


.burger img {
    width: 20px;  /* gleiche Größe wie das Light/Dark-Mode-Icon */
    height: 20px;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.burger img:hover {
    opacity: 1;
}

@media screen and (max-width: 800px) {
  .topnav-center {
    display: none;  
  }

  .topnav {
    padding-left: 0vw;
    padding-right: 0vw;
  }

  .topnav-left {
    padding-left: 1px;
  }

  .topnav-right {
    padding-right: 5vw;
  }

  .burger {
    display: inline-block; 
  }
}

@media screen and (min-width: 801px) {
  .burger {
    display: none;  
  }
  .mobile-menu {
    display: none !important;
  }
  .screen-overlay {
    display: none !important;
  }
}

/* EXPLAIN */
.explaining {
    margin-top: 3%;
    margin-bottom: 3%;
    font-size: 0.9em;
}


/* CONTACT */


.contact-icons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin: 20px 0;
    margin-bottom: 9vw;
}

.contact-icons a img {
    width: 45px;
    height: 45px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.contact-icons a img:hover {
    transform: scale(1.2); 
    opacity: 1;
}

@media screen and (max-width: 800px) {
  .contact-icons {
    gap: 5px;
    margin-bottom: 5vw;
  }

  
}

/* CARDS */


.scroll-container {
    position: relative;
    width: 100vw;
    overflow-x: scroll;
    white-space: nowrap;
    scroll-behavior: smooth;
    
    margin-left: -20vw;
    padding-left: 20vw;

    margin-right: -20vw;
    padding-right: 20vw;
    
    margin-bottom: 10vw;
    padding-bottom: 5px;

    scrollbar-width: none;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.class-image {
    width: 100%;
    background-size: cover;
    background-position: center;
}

.card-container {
    display: inline-flex;
    gap: 20px;
    margin-right: 20vw;

}

.card {
    position: relative;
    width: 350px;
    height: 470px;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    display: inline-block;
}

body:not(.light-mode) .card {
    box-shadow: 0 4px 8px rgba(255, 255, 255, 0.2);
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    transition: transform 0.3s ease;
    
}


.card:hover .card-image {
    transform: scale(1.05);
}

.card:focus .card-content,
.card:hover .card-content,
.card.active .card-content {
  opacity: 0;
  text-decoration: none;
  font-weight: lighter;
}

.card-category,
.card-title {
    position: absolute;
    color: #fff;
    padding: 5px 10px;
    border-radius: 5px;
    z-index: 1;
    font-weight: lighter;
}

.card-category {
    bottom: 10px;
    left: 10px;
    font-size: 0.8em;
    text-shadow: 1px 2px 20px rgba(0, 0, 0, 0.9);
}

.card-title {
    top: 5px;
    left: 10px;
    font-size: 1.1em;
    text-shadow: 1px 2px 25px rgba(0, 0, 0, 0.9);
}


/* Content Reveal on Hover */
.card-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s ease;
  padding: 20px;
  padding-top: 5vw;
  text-align: left;
  font-size: 1em;
  box-sizing: border-box;
  white-space: normal;
  word-break: break-word;
  overflow: hidden;
  line-height: 1.4; 
}




/* HACKATHONS */
.interesting-links {
    list-style-type: disc;
    padding-top: 2vw;
    padding-bottom: 5vw;
}

.interesting-links li {
    margin-bottom: 10px;
    line-height: 1.2;
}




/* RESOURCES */

.resource-list1 {
    list-style-type: disc; /* Standard bullet point style */
    padding-top: 2vw;
    padding-bottom: 5vw;
}


.resource-list1  li {
    margin-bottom: 15px; 
    line-height: 1.2; 
}


/* Footer Layout */
.footer {
  padding-left: 10vw;
  padding-right: 10vw;
  font-size: 0.8em;
}

/* Light and Dark Mode Styling */
body.light-mode .footer {
  color: #555;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0 auto;
  padding-bottom: 100px;
  /*
  border-bottom: 1px solid #333;
  border-top: 1px solid #333;
  */
}



.footer-section {
  text-align: left;
}

/* Topics (Gray Color) */
.footer-section p {
  color: #888;
  margin-bottom: 10px;
  font-size: 0.8em;
}

/* Adjust color for light mode */
body.light-mode .footer-section p {
  color: #666;
}

/* List Items */
.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin: 5px 0;
}

/* Link Styling */
.footer-section ul li a {
  color: #FFFFFF;
  transition: color 0.3s ease;
}

/* Adjust link color for light mode */
body.light-mode .footer-section ul li a {
  color: #000;
}

/* Link Hover Effect */
.footer-section ul li a:hover {
  color: var(--link-hover-color);
}

body.light-mode .footer-section ul li a:hover {
  color: var(--link-hover-color);
}

/* Bottom Row */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  color: #888;
}

/* Adjust color for light mode */
body.light-mode .footer-bottom {
  color: #000000;
}

/* Social Media Icons */
.social-media a img {
  width: 25px;
  height: 25px;
  margin-right: 15px;
  opacity: 0.9;
  transition: opacity 0.3s ease;
}

.social-media a img:hover {
  opacity: 1;
}

/* Media Queries for Responsive Design */
@media screen and (max-width: 800px) {
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }

  .footer-section {
    text-align: left;
  }

  .footer-bottom {
    .social-media {
        gap: 5px;
    }
  }
}


/* Background Element */
.bg-primary-landing {
  background-color: #ff0000;
  margin-left: 0%;
  margin-right: 0%;
  height: 1px;
}

/* Theme Toggle Icon */
#theme-icon img {
    width: 30px; 
    height: 30px;
    opacity: 0.9;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

#theme-icon img:hover {
    opacity: 1;
}


/* --------------------------------- */
/* CONTENT                           */
/* --------------------------------- */
article {
  padding-left: 20vw;
  padding-right: 20vw;
  font-weight: lighter;
  line-height: 1.8;
  font-size: 1rem;
  margin-bottom: 20px;
}

article h1, article h2, article h3 {
  font-size: 4.2rem;
  font-weight: 400;
  line-height: 1.2;
  text-align: center; 
  margin-top: 5vw;
  margin-bottom: 1vw; 
}

article h1 {
  text-align: left;
  margin-bottom: 0vw;
}

article h2 {
  font-size: 2rem;
  margin-top: 5vw;
  margin-bottom: 1vw;
}

article h3 {
  text-align: left;
  font-weight: 130;
  font-size: 1.5rem;
  margin-top: 1vw;
  margin-bottom: 1vw;
  margin-left: 0vw;
  margin-right: 10vw;
}

article date {
  font-size: 0.7em;
  font-weight: lighter;
  text-align: left;
  display: block;
  margin-left: 0vw;
  margin-bottom: 1vw;
}

article figure {
  margin: 5vw;
  margin-top: 3vw;
  margin-bottom: 3vw;
}

article img {
  width: 100%;
  height: auto;
  display: block;
  margin: auto;
}

article figcaption {
  font-size: 0.7em;
  font-weight: lighter;
}






@media screen and (max-width: 800px) {

  .explaining {
    margin-top: -5%;
    margin-bottom: -5%;
    text-align: center;
  }

  .card {
    width: 186px;   /* 350px */
    height: 250px; /* 470px */
  }

  .card-container {
    gap: 12px;
  }

  .card-image {
    background-size: cover;
    background-position: center;
  }

  .card-title {
    padding: 5px 5px; /* 5px 10px */
    top: 5px; /* 10px */
    left: 5px; /* 10px */
    text-shadow: 1px 2px 15px rgba(0, 0, 0, 0.9);
  }

  .card-category {
    padding: 0px 5px; /* 5px 10px */
    bottom: 5px; /* 10px */
    left: 5px; /* 10px */
    text-shadow: 1px 2px 10px rgba(0, 0, 0, 0.9);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    gap: 10px; 
    padding-top: 10px;
  }

  .social-media a img {
    width: 25px; /* 25px */
    height: 25px;
    margin-right: 5px; /* 15px */
  }


  .main {
    padding-top: 5%;
    padding-left: 1px;
    padding-right: 1px;
  }

  main h2 {
    padding-top: 20%;
  }

  article {
    padding-left: 5%;
    padding-right: 5%;
  }

  article p {
    margin-bottom: 20px;
  }

  article h2 {
    margin-top: 10vw;
    margin-bottom: 2vw;
    text-align: left;
  }

  article h1, article h3 {
    text-align: left;
  }

  article h3 {
    margin-top: 5vw;
    margin-bottom: 5vw;
  }

  article figure {
    margin-top: 15vw;
    margin-bottom: 15vw;
  }
}