body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
  font-family: "Pretendard", sans-serif;
  text-align: center;
  background: #f9f9ff;
}

#item {
  display: grid;
  grid-template-columns: repeat(3, 1fr); /* PC: 3개 */
  gap: 1rem; /* 카드 간격 */
  padding: 1rem;
  width: 100%;
  box-sizing: border-box;
}

.card {
  border-radius: 10px;
  padding: 1rem;
  color: #333;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: default;
}

/* Hover 효과 */
.card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* 감정별 색상 + 글자색 */
.card.happy {
  background-color: #ffd93d;
  color: #333;
}
.card.sad {
  background-color: #4d79ff;
  color: #fff;
}
.card.angry {
  background-color: #ff4d4d;
  color: #fff;
}
.card.tired {
  background-color: #a9a9a9;
  color: #fff;
}
.card.anxious {
  background-color: #ff914d;
  color: #fff;
}
.card.excited {
  background-color: #ff6ec7;
  color: #fff;
}
.card.grateful {
  background-color: #6cffb0;
  color: #333;
}
.card.bored {
  background-color: #c0c0c0;
  color: #333;
}
.card.lonely {
  background-color: #9370db;
  color: #fff;
}
.card.calm {
  background-color: #48c9b0;
  color: #fff;
}
.card.gita {
  background-color: #f0a500;
  color: #333;
}

/* 모바일: 한 줄에 1개 */
@media (max-width: 768px) {
  #item {
    grid-template-columns: 1fr;
  }
}

/* 버튼 스타일 유지 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: #5b8df8;
  color: white;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.2s;
}

.btn::after {
  content: "➔";
  margin-left: 8px;
  transition: transform 0.2s;
}

.btn:hover {
  background-color: #4a7de0;
}

.btn:hover::after {
  transform: translateX(7px);
}