/* 기본 스타일 */
body {
  font-family: 'Segoe UI', sans-serif;
  background: #fcfcfc;
  color: #333;
  max-width: 700px;
  margin: 80px auto 40px;
  padding: 0 1rem;
}

.page-title {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
.page-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: #3498db;
  margin: 10px auto 0;
  border-radius: 2px;
}

.subtitle {
  text-align: center;
  font-size: 1rem;
  margin-bottom: 1.2rem;
  color: #555;
}

.notice {
  background: #f0f8ff;
  padding: 1rem;
  border-left: 4px solid #3498db;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  border-radius: 5px;
}

.form-group {
  margin-top: 1rem;
}
label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.3rem;
}
input {
  width: 100%;
  padding: 0.6rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  box-sizing: border-box;
}

#calculateBtn {
  margin-top: 1.5rem;
  width: 100%;
  padding: 0.8rem;
  font-size: 1rem;
  background-color: #0066cc;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
#calculateBtn:hover {
  background-color: #005bb5;
}

.result {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: #eaf6ff;
  border-left: 4px solid #3498db;
  border-radius: 5px;
  font-size: 1.05rem;
  line-height: 1.6;
}

/* 🏠 다른 도구 더 보기 버튼 */
.home-button {
  position: fixed;
  top: 12px;
  left: 0;
  right: 0;
  margin: auto;
  width: fit-content;
  padding: 14px 24px;
  background-color: #0066cc;
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1.3em;
  box-shadow: 0 6px 12px rgba(0,0,0,0.3);
  overflow: hidden;
  transition: background-color 0.3s, transform 0.2s, box-shadow 0.3s;
  z-index: 999;
}
.home-button:hover {
  background-color: #004999;
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.5);
}
.home-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: rgba(255,255,255,0.4);
  transform: skewX(-30deg);
  animation: shine 3s infinite;
}
@keyframes shine {
  0% { left: -75%; }
  50% { left: 125%; }
  100% { left: -75%; }
}
@media (max-width: 600px) {
  .home-button {
    font-size: 1.1em;
    padding: 10px 16px;
    top: 10px;
  }
}
/* style.css에 추가 */
.explanation-box {
  background: #f8f8f8;
  border-left: 4px solid #999;
  padding: 1rem;
  font-size: 0.9rem;
  margin-top: 1rem;
  border-radius: 5px;
  line-height: 1.5;
  color: #555;
}