/* Rudie Hartmann C22165 */

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
  color: white;
  background-image: url("images/integrated-circuit.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
  backdrop-filter: brightness(0.8);
}


header, h2 {
  text-align: center;
  padding: 20px;
}

nav {
  display: flex;
  justify-content: center;
  gap: 20px;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 10px 15px;
  transition: background 0.3s;
}

nav a:hover {
  background: #ffffff33;
  border-radius: 5px;
}

.timeline-container {
  display: flex;
  flex-direction: column;
  padding: 20px;
}

.timeline-item {
  background: #ffffff22;
  margin: 10px;
  padding: 10px;
  border-left: 4px solid #00ffcc;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  padding: 20px;
}

.inventor-card {
  position: relative;
  overflow: hidden;
}

.inventor-card img {
  width: 100%;
  display: block;
  transition: transform 0.3s;
}

.inventor-card:hover img {
  transform: scale(1.1);
}

.inventor-card .info {
  background: rgba(0,0,0,0.6);
  padding: 10px;
  position: absolute;
  bottom: 0;
  width: 100%;
  color: #fff;
}

.quiz-categories a {
  display: inline-block;
  background: #00ffcc;
  color: black;
  padding: 15px 25px;
  margin: 10px;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.3s;
}

.quiz-categories a:hover {
  background: #00ffaa;
}

.question {
  padding: 10px;
  margin: 20px;
  background: #ffffff22;
  border-radius: 8px;
}
/* Rudie Hartmann C22165 */
button {
  display: block;
  margin: auto;
  padding: 10px 20px;
  background: #00ffcc;
  border: none;
  color: black;
  font-weight: bold;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #00ffaa;
}

.results-box {
  background: #ffffff22;
  padding: 20px;
  margin: 30px auto;
  width: fit-content;
  border-radius: 10px;
}

.back-button {
  position: fixed;
  top: 20px;
  left: 20px;
  text-decoration: none;
  color: rgb(0, 0, 0);
  background: rgba(30, 250, 250, 0.9);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: bold;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
  transition: background 0.3s ease, transform 0.2s ease;
  z-index: 9999; /* 👈 ensures it’s always on top */
}

.back-button:hover {
  background: rgba(0, 180, 180, 1);
  transform: scale(1.05);
}


.timeline-container {
  max-width: 800px;
  margin: 40px auto;
  padding: 10px;
  position: relative;
}

.timeline-item {
  position: relative;
  margin: 40px 0;
  padding-left: 30px;
  border-left: 3px solid #00ffcc;
  transition: all 0.3s ease;
}

.timeline-item:hover {
  transform: scale(1.02);
}
/* Rudie Hartmann C22165 */
.timeline-item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: -10px;
  width: 20px;
  height: 20px;
  background-color: #00ffcc;
  border-radius: 50%;
  border: 3px solid white;
}

.timeline-item .content {
  background: #ffffff15;
  padding: 15px;
  border-radius: 8px;
}

.timeline-item img {
  width: 100%;
  height: auto; /* Keep aspect ratio */
  max-height: 300px; /* Optional: limit tall images */
  object-fit: contain; /* Show full image */
  border-radius: 6px;
  margin-top: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}


.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5); /* semi-transparent dark overlay */
  z-index: -1;
}
.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  padding: 40px;
  max-width: 1200px;
  margin: auto;
}

.gallery-item {
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  padding: 15px;
  color: white;
  text-align: center;
  transition: transform 0.3s ease, background 0.3s;
}

.gallery-item:hover {
  transform: scale(1.03);
  background: rgba(0, 255, 204, 0.1);
}

.gallery-item img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(0,0,0,0.4);
}

.home-container {
  text-align: center;
  padding: 100px 20px;
  color: white;
  max-width: 800px;
  margin: auto;
}

.home-container h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 255, 255, 0.5);
}

.intro {
  font-size: 1.2rem;
  margin-bottom: 40px;
  line-height: 1.6;
  background: rgba(0, 0, 0, 0.5);
  padding: 20px;
  border-radius: 8px;
}

.nav-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.btn {
  background: rgba(0, 255, 204, 0.1);
  border: 1px solid cyan;
  padding: 12px 25px;
  border-radius: 30px;
  color: cyan;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
}

.btn:hover {
  background: cyan;
  color: black;
  transform: scale(1.05);
}
.quiz-container {
  background: rgba(0, 0, 0, 0.6);
  padding: 30px;
  border-radius: 10px;
  max-width: 800px;
  margin: 50px auto;
  color: white;
}

.quiz-question {
  margin-bottom: 30px;
}

.quiz-question label {
  display: block;
  margin-left: 10px;
  padding: 5px;
  cursor: pointer;
  transition: background 0.2s ease;
}
/* Rudie Hartmann C22165 */
.quiz-question label:hover {
  background: rgba(0, 255, 204, 0.1);
}

.results {
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 8px;
}

.learn-more {
  display: inline-block;
  margin-top: 10px;
  color: #00ff00;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.learn-more:hover {
  color: #78ecfc;
  text-decoration: underline;
  transform: translateX(3px);
}

.site-footer {
  text-align: center;
  padding: 20px;
  font-size: 0.95rem;
  color: #fff;
  background-color: rgba(0, 0, 0, 0.1); /* Semi-transparent black */
  backdrop-filter: blur(5px); /* Optional: makes it feel glassy */
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin-top: 40px;
}