style.css

/* Add your CSS here */

/* Center the header image and set its size */
header img {
  display: block;           /* Makes the image take up its own line */
  margin: 0 auto;           /* Centers the image horizontally */
  width: 6%;               /* Sets the image width */
  height: auto;             /* Keeps the image's aspect ratio */
}

/* Make the header background navy blue */
header {
  background-color: rgb(1, 1, 61); /* Sets the background color to navy blue */
  text-align: center;              /* Centers all header text */
}

/* Change the header title text color for better contrast */
header h1 {
  color: white;         /* White text stands out on a dark background */
  font-size: 2.2em;     /* Slightly larger title text */
}

/* Change the header subheading text color for better contrast */
header p {
  color: #e0e0e0; /* Light gray for readability on dark background */
  font-size: 1.2em; /* Slightly larger subheading text */
}

/* Timeline cards layout using flexbox and scroll snap */
section {
  display: flex;
  flex-wrap: nowrap;              /* Prevent wrapping for horizontal scroll */
  flex-direction: row;            /* Horizontal layout */
  justify-content: flex-start;    /* Align cards to the left */
  gap: 16px;
  margin: 24px 0;
  width: 100%;
  max-width: 100vw;
  box-sizing: border-box;
  overflow-x: scroll;           /* Always show horizontal scrollbar */
  scrollbar-width: auto;        /* Always show scrollbar in Firefox */
  scroll-snap-type: x mandatory;  /* Enable horizontal scroll snap */
  -webkit-overflow-scrolling: touch; /* Smooth scrolling on mobile */
  padding-bottom: 16px;           /* Space for scrollbar */
}

/* Use .timeline-card for all cards */
section > .timeline-card {
  background: none;
  border-radius: 8px;
  box-shadow: none;
  padding: 0;
  width: 300px;              /* Set card width */
  height: 300px;             /* Set card height to match width for square shape */
  min-width: 300px;          /* Prevent shrinking below square */
  min-height: 300px;
  max-width: 300px;          /* Prevent growing beyond square */
  max-height: 300px;
  box-sizing: border-box;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s;
  scroll-snap-align: start;
}

/* Make images inside cards fill the square and keep text inside */
section > .timeline-card img {
  width: 100%;
  height: 100%;              /* Image fills the square card */
  object-fit: cover;         /* Crop image to fill area */
  border-radius: 8px;
  display: block;
}

/* Overlay for card text */
section > .timeline-card h2,
section > .timeline-card h3,
section > .timeline-card p {
  position: absolute;
  left: 0;
  width: 100%;
  padding: 0 10px;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.7);
  box-sizing: border-box;
  margin: 0;
  /* Ensure overlay text stays within the card image */
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Add faded background to card headers for better focus */
section > .timeline-card h2,
section > .timeline-card h3 {
  background: rgba(0, 0, 32, 0.4); /* Faded dark background */
  border-radius: 4px;
}

section > .timeline-card h2 {
  top: 12px;
  font-size: 1.2em;
  font-weight: bold;
  text-align: center;
}

section > .timeline-card h3 {
  top: 40px;
  font-size: 1em;
  text-align: center;
}

section > .timeline-card p {
  bottom: 12px;
  font-size: 0.95em;
  text-align: center;
  background: rgba(0,0,0,0.4);
  border-radius: 4px;
  padding: 6px 10px;
  opacity: 0;
  max-height: 60%;           /* Prevent overlay text from overflowing image */
  overflow-y: auto;          /* Scroll if text is too long */
}

/* Show the card description text when hovering over the card */
section > .timeline-card:hover p {
  opacity: 1; /* Make the text fully visible */
}

/* Also show the text when the paragraph is focused (for accessibility) */
section > .timeline-card p:focus {
  opacity: 1;
}

/* Hide h2 and h3 text on card hover or focus */
section > .timeline-card:hover h2,
section > .timeline-card:focus h2,
section > .timeline-card:hover h3,
section > .timeline-card:focus h3 {
  opacity: 0;
}

/* Make cards slightly larger when hovered or focused */
section > .timeline-card:hover,
section > .timeline-card:focus {
  transform: scale(1.05);         /* Slightly increase card size */
  z-index: 1;                     /* Bring hovered card above others */
  transition: transform 0.2s;     /* Smooth scaling effect */
}

/* Responsive: Stack cards vertically on small screens with vertical scroll snap */
@media (max-width: 800px) {
  section {
    flex-direction: column;         /* Stack cards vertically */
    align-items: center;
    overflow-x: scroll;         /* Always show scrollbar on small screens too */
    overflow-y: auto;
    scrollbar-width: auto;
    scroll-snap-type: y mandatory;  /* Enable vertical scroll snap */
    height: 80vh;                   /* Set a height for vertical scrolling */
    max-width: 100%;
    padding-bottom: 0;
  }
  section > .timeline-card {
    width: 90vw;             /* Responsive square: 90% of viewport width */
    height: 90vw;
    min-width: 200px;
    min-height: 200px;
    max-width: 350px;
    max-height: 350px;
    scroll-snap-align: start;
  }
  section > .timeline-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
}

/* Style the <p> at the bottom of the body */
body > p {
  background-color: rgb(1, 1, 61); /* Same navy blue as header */
  color: white;                    /* White text for contrast */
  text-align: center;              /* Center the text */
  padding: 10px 0;                 /* Add some space above and below */
  margin: 0;                       /* Remove default margin */
}