html, body {
    margin: 0px;
    padding: 0;
    height: 100vh;
    background-color: black;
    scroll-behavior: smooth;
}
.benner img{
    width: 100%;
    height: auto;
    background-repeat: no-repeat;
    background-size:contain;
    display: block;
}
.intro img{
    width: 100%;
    height: auto;
    background-repeat: no-repeat;
    background-size:contain;
    display: block;
}
.function img{
    width: 100%;
    height: auto;
    background-repeat: no-repeat;
    background-size:contain;
    display: block;
}
.Secret img{
    width: 100%;
    height: auto;
    background-repeat: no-repeat;
    background-size:contain;
    display: block;
}
.contact {
  max-width: 500px;
  margin: 40px auto;
  padding: 25px;
  background: #1c1c1c; /* 어두운 배경으로 변경 */
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(255, 255, 255, 0.05);
  box-sizing: border-box;
  color: #ffffff; /* 텍스트 흰색 */
}

.contact h2 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 24px;
  color: #ffffff; /* 제목 색상 */
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: bold;
  color: #ffffff; /* 라벨 텍스트 색상 */
}

input {
  width: 100%;
  padding: 10px;
  border: 1px solid #555; /* 어두운 테두리 */
  border-radius: 6px;
  background-color: #2c2c2c; /* 입력창 배경 */
  color: #fff;
  box-sizing: border-box;
  font-size: 16px;
}

.desk_btn {
  width: 100%;
  padding: 12px;
  background-color: #28a745; /* 녹색 톤 */
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
}

.desk_btn:hover {
  background-color: #218838;
}
.btn_section {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 30px;
}

.btn {
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05); /* 반투명 유리 효과 */
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 40px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 0 15px rgba(0, 255, 255, 0.1), 0 0 40px rgba(130, 0, 255, 0.2);
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn:hover {
  background: linear-gradient(135deg, #7f00ff, #00bcd4);
  color: #000;
  border: 1px solid #ffffff;
  box-shadow: 0 0 20px rgba(127, 0, 255, 0.6), 0 0 35px rgba(0, 188, 212, 0.5);
  transform: scale(1.05);
}
/* 반응형 처리 */
@media (max-width: 600px) {
  .contact {
    padding: 15px;
    margin: 20px;
  }

  .contact h2 {
    font-size: 20px;
  }

  input {
    font-size: 14px;
  }

  .desk_btn {
    font-size: 14px;
  }
}
.logo img{
    width: 100%;
    height: auto;
    background-repeat: no-repeat;
    background-size:contain;
    display: block;
}
.footer {
    width: 100%;
    height: 100px;
    background-color: #000000;
    bottom: 0;
    display: flex;
    position: absolute;
    color: #fff;
    justify-content: center;
    align-items: center;
}

#toTopBtn {
  position: fixed;
  bottom: 40px;
  right: 30px;
  z-index: 1000;
  background-color: #ffffff22;
  border: 2px solid #ffffff55;
  color: white;
  font-size: 24px;
  padding: 10px 16px;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(4px);
}

#toTopBtn:hover {
  background-color: #00ffe744;
  border-color: #00ffe7;
  color: #00ffe7;
}