* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  background: linear-gradient(to bottom right, #ffe6f0, #fff5fa);
  color: #333;
  min-height: 100vh;
  overflow-y: auto;        /* allows scrolling */
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.container {
  text-align: center;
  background: #ffffffd9;
  border-radius: 20px;
  padding: 50px 30px;
  box-shadow: 0 8px 20px rgba(255, 182, 193, 0.3);
  width: 90%;
  max-width: 1000px;
  margin: 40px auto;
}

.header h1 {
  font-size: 1.6rem;
  color: #d63384;
  margin-bottom: 40px;
}

.drawing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 20px 0;
}

.drawing-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
}

.btn {
  background-color: #ffb6c1;
  border: none;
  border-radius: 12px;
  padding: 15px 25px;
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  margin-top: 30px;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: #ff99b8;
  transform: translateY(-4px);
  box-shadow: 0 6px 15px rgba(255, 105, 180, 0.4);
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  justify-content: center;
  align-items: center;
  z-index: 999;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  border-radius: 12px;
  box-shadow: 0 0 30px rgba(255, 182, 193, 0.5);
  animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.close-btn {
  position: fixed;
  top: 20px;
  right: 30px;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  transition: 0.2s;
}

.close-btn:hover {
  color: #ffb6c1;
}

/* make grid images feel clickable */
.drawing-grid img {
  cursor: pointer;
  transition: transform 0.2s ease;
}

.drawing-grid img:hover {
  transform: scale(1.03);
}