body {
  margin: 0;
  font-family: sans-serif;
  background: #fff;
  color: #000;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

.app {
  width: 375px;
  max-width: 100vw;
  padding: 20px;
  text-align: left;
}

.logo img {
  width: 240px;   /* smaller logo */
  height: auto;
  display: block;
  margin-bottom: 10px;
}

h1 {
  margin: 0;
  font-size: 22px;
}

.sub {
  margin: 4px 0 20px;
  font-size: 14px;
  color: #666;
}

.card {
  margin: 20px 0;
}

footer {
  margin-top: 20px;
  font-size: 12px;
  color: #555;
}

a {
  text-decoration: none;  /* remove underline */
  color: inherit;         /* use normal text color */
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* 3 columns */
  gap: 5px; /* spacing between images */
  margin: 15px 0;
}

.image-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;   /* makes images perfect squares */
  object-fit: cover;     /* crops nicely */
  display: block;
}

/* Lightbox (fullscreen viewer) */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: #fff;
  z-index: 1000;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 20px;
  opacity: 0;                /* start transparent */
  transition: opacity 0.3s ease;
}

/* Fullscreen image */
.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
}

/* Title (bottom-left) */
.lightbox-title {
  position: absolute;
  bottom: 15px;
  left: 20px;
  color: #000;            /* black text for white background */
  font-size: 12px;
  font-weight: bold;
}

/* Close button (top-right) */
.lightbox-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: none;
  border: none;
  color: #666;            /* black text */
  font-size: 12px;
  font-weight: bold;
  cursor: pointer;
}

/* When lightbox is active */
.lightbox.show {
  display: flex;
  opacity: 1;
}