/* 
  Basic Reset & Typography
  ------------------------ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  font-family: "Helvetica Neue", Arial, sans-serif;
  background-color: #fafafa;
  color: #111;
}

/* 
  Layout
  ------------------------ */
body {
  display: flex;
  flex-direction: row; /* Default to row for landscape */
  min-height: 100vh;
}

/* Navigation */
.left-nav {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 1.5rem;
  width: 220px; /* Maintains nav width in landscape */
  background-color: #f5f5f5;
}

.nav-logo a {
  font-size: 1.2rem;
  font-weight: bold;
  text-decoration: none;
  color: #111;
  transition: color 0.3s;
}

.nav-logo a:hover {
  color: #555;
}

/* Navigation Links */
.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.nav-links li {
  cursor: pointer;
  font-size: 1rem;
  position: relative;
  transition: color 0.3s;
}

.nav-links li:hover {
  color: #777;
}

.nav-links li.active-link {
  color: #111;
  font-weight: 600;
}

/* Minimal underline for active link */
.nav-links li.active-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background-color: #111;
}


/* 
  Main Content Wrapper
  ------------------------ */
.content-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column; /* Ensure sections stack vertically */
  position: relative;
  overflow: hidden;
}

/* Sections */
.content-section {
  position: absolute;
  top: 0;
  left: 100%;
  width: 100%;
  padding: 4rem 2rem;
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.5s ease, transform 0.5s ease, left 0.5s ease;
}

.content-section.active-section {
  left: 0;
  opacity: 1;
  transform: translateX(0);
}

.content-section h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.content-section p, 
.content-section ul {
  font-size: 1rem;
  line-height: 1.6;
  max-width: 600px;
}

.content-section ul {
  list-style-type: disc;
  margin-left: 1.5rem;
}

/* ================================
   SECTION INNER: FLEX LAYOUT
   ================================ */

/* Container for text + carousel in all sections */
.section-inner {
  display: flex;
  flex-direction: row;
  gap: 4rem; /* Maintains spacing in landscape */
  align-items: flex-start;
  justify-content: flex-start;
}

/* TI Toolbox Website Embed */
.toolbox-embed {
  flex: 1;
  width: 100%;
}

.toolbox-embed iframe {
  width: 100%;
  height: calc(100vh - 8rem);
  border: 1px solid #ddd;
  border-radius: 8px;
  background-color: white;
}

/* Text area in all sections */
.section-text {
  flex: 1 1 60%; /* Takes up 60% of the container */
  max-width: 600px; /* Optional constraint */
}

/* Carousel area in all sections */
.media-gallery {
  flex: 1 1 40%; /* Takes up 40% of the container */
  position: relative;
  max-width: 600px; /* Ensures it doesn't exceed container */
  width: auto;
  text-align: center;
}

/* Hide all media-item by default except .active */
.media-item {
  display: none;
}

.media-item.active {
  display: block;
}

/* Maintain aspect ratio for media */
.media-gallery img,
.media-gallery video {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* Arrows */
.arrow-left,
.arrow-right {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  font-size: 2em;
  padding: 0.2em 0.5em;
  border-radius: 50%;
  cursor: pointer;
  background-color: rgba(221, 221, 221, 0.8);
  color: #333;
  transition: background-color 0.3s;
}

.arrow-left { left: -4rem; }
.arrow-right { right: -4rem; }

.arrow-left:hover,
.arrow-right:hover {
  background-color: rgba(187, 187, 187, 0.8);
}

/* Description text under each media item */
.media-description {
  margin-top: 0.5em;
  font-size: 0.9em;
  color: #555;
}

/* ================================
   RESPONSIVE / SMALL SCREENS
   ================================ */
@media (max-width: 1024px) {
  /* Optional: Adjust layout for medium screens if needed */
}

@media (max-width: 768px) {
  /* Stack body vertically */
  body {
    flex-direction: column;
  }
  
  /* Make nav horizontal at the top */
  .left-nav {
    flex-direction: row;
    width: 100%;
    align-items: center;
    padding: 1rem;
  }
  
  .nav-logo {
    margin-bottom: 0;
    margin-right: 1rem;
  }
  
  .nav-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    margin-left: auto;
  }
  
  .content-wrapper {
    position: static;
    overflow: visible;
    flex-direction: column;
  }
  
  .content-section {
    position: static;
    opacity: 1;
    transform: none;
    transition: none;
    left: auto;
    width: 100%;
    padding: 2rem 1rem;
    margin-bottom: 2rem;
  }
  
  .section-inner {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .media-gallery {
    width: 100%;
    max-width: 100%;
  }
  
  .arrow-left { left: 0.5rem; }
  .arrow-right { right: 0.5rem; }
}

/* ================================
   ORIENTATION-BASED RESPONSIVENESS
   ================================ */
@media screen and (orientation: portrait) and (min-width: 769px) {
  .section-inner {
    flex-direction: column; /* Stack text above carousel */
    gap: 1.5rem;
  }
  
  .media-gallery {
    width: 100%;
    max-width: 600px; /* Maintain max-width if desired */
  }
  
  .arrow-left { left: 1rem; }
  .arrow-right { right: -4rem; }
}


/* Adjusted Home Button */
.home-button {
    position: absolute;
    top: 10px; /* Adjust this value to move the button higher or lower */
    left: 10px; /* Adjust this value to position it horizontally */
    font-size: 24px;
    color: black;
    padding: 10px;
    border-radius: 50%;
    text-decoration: none;
    z-index: 1000;
    transition: transform 0.5s ease, color 3s ease;
}

.home-button:hover {
  color: #C41E3A;
  transform: scale(1.8);
}