:root {
  --bg-gradient: radial-gradient(circle at top left, #eabaff, #a18cd1, #fff2ba);
  --primary-font: "Segoe UI", system-ui, sans-serif;
  --text-color: #ffffff;
  --accent-color: #ffffffcc;
  --box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--primary-font);
  background: var(--bg-gradient);
  min-height: 100vh;
  display: grid;
  place-items: center;
  color: var(--text-color);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  padding: 1rem;
}

/* === Gift Button === */
#gift {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 10rem;
  line-height: 1;
  transition: transform 0.25s ease;
  filter: drop-shadow(0 0 1rem #ffffffaa);
}

#gift:hover {
  transform: scale(1.08);
}

#gift.open .emoji {
  animation: openGift 0.8s forwards ease-in-out;
}

@keyframes openGift {
  0%   { transform: scale(1) rotate(0deg); opacity: 1; }
  20%  { transform: scale(1.2) rotate(-15deg); }
  60%  { transform: scale(0.9) rotate(10deg); }
  100% { transform: scale(0) rotate(0deg); opacity: 0; }
}

/* === Hidden Content === */
#content {
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 0.3s, transform 0.8s ease 0.3s;
  max-width: 90vw;
}

#content.show {
  opacity: 1;
  transform: translateY(0);
}

#content img {
  max-width: 100%;
  width: 600px;
  height: auto;
  border-radius: 1.5rem;
  box-shadow: var(--box-shadow);
  margin-bottom: 1.5rem;
  border: 4px solid #ffffff55;
}

.message {
  font-size: 2rem;
  margin: 0;
  background-color: #ffffff22;
  padding: 1rem 2rem;
  border-radius: 1rem;
  display: inline-block;
  backdrop-filter: blur(10px);
  box-shadow: var(--box-shadow);
}