.overlay {
  position: fixed;
  top: 0; 
  left: 0; 
  right: 0; 
  bottom: 0;
  z-index: 1;
  background-image: url('../image/login-background.jpg');
  background-size: cover;
  background-position: center;
}

.overlay::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1;
}

/* 메인 컨테이너 */
.container {
  position: absolute;
  top: 50%; 
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 30px;
  z-index: 2;
}

/* 로고 영역 */
.logo-area {
  text-align: center;
}

.logo-area img {
  max-width: 452px;
  margin: 0 auto;
}

/* 로그인 싱글 */
.login-single {
  display: flex;
  margin: 30px auto 0 auto;
  background: var(--background-color);
  border-radius: 30px;
  overflow: hidden;
  max-width: 473px;
}

/* 로그인 더블 */
.login-double {
  min-width: 941px;
  margin: 30px auto 0 auto;
  background: var(--background-color);
  border-radius: 30px;
  overflow: hidden;
}

.content {
  display: flex;
  padding: 70px 0px;
}

/* 좌우 레이아웃 */
.left, .right {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0px 30px;
}

.left {
  border-right: 1px solid #ececec;
}


.tip-box {
  min-width: 100%;
  height: 63px;
  justify-content: center;
  align-items: center;
  gap: 15px;
  border-radius: 10px;
  border: 1px solid var(--btn-main-color);
  background: var(--background-tip-color);
  position: relative;
  display: flex;
  align-items: center;
}

.tip-box img {
  position: absolute;
  left: 20px;
}

.tip-text {
  padding: 0px 15px 0px 55px;
  color: var(--main-color);
  font-size: 14px;
  font-weight: 500;
  line-height: 18px;
}


/* 폼 그룹 */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Input with icon */
.input-with-icon {
  position: relative;
  display: flex;
  align-items: center;
  height: 55px;
}

.input-with-icon img {
  position: absolute;
  left: 15px;
  color: #999;
  font-size: 20px;
  pointer-events: none;
  display: flex;
  align-items: center;
}

.form-group input {
  padding: 15px 20px 15px 45px;
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 16px;
  outline: none;
  transition: border 0.2s, box-shadow 0.2s;
  background-color: var(--background-input-color);
}

.form-group input::placeholder {color: var(--placeholder-color);}
.form-group input::-webkit-input-placeholder { color: var(--placeholder-color); }
.form-group input:-ms-input-placeholder { color: var(--placeholder-color); }
.form-group input::-ms-input-placeholder { color: var(--placeholder-color); }

.form-group input:focus {
  border: 1.5px solid #be2d53;
}

/* 인증서 그룹 */
.certi-group {
  display: flex;
  flex-direction: column;
}

/* 등록 버튼 */
.login-btn {
  min-width: 100%;
  height: 55px;
  padding: 15px 0;
  background: var(--btn-main-color);
  color: var(--white-color);
  border: none;
  border-radius: 10px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
}

.login-btn:hover {
  background: var(--btn-main-hover-color);
  transition: background 0.2s;
}

.certi-login-btn {
  min-width: 410px;
  height: 55px;
  padding: 15px 0;
  background: var(--background-color);
  color: var(--sub-color);
  border: 2px solid var(--sub-color);
  border-radius: 10px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
}

.certi-login-btn:hover {
  background: var(--background-input-color);
  color: var(--btn-sub-hover-color);
  border: 2px solid var(--btn-sub-hover-color);
  transition: background 0.2s;
}

.desc {
}

.desc-title {
  font-size: 16px;
  font-weight: 700;
  line-height: 16px;
  margin-bottom: 6px;
}

.desc-content {
    display: flex;
    gap: 5px;
}

.desc-item {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-right: 10px;
  font-size: 14px;
  font-weight: 500;
}

.magic-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.magic-line img {
  width: 20px;
} 

.magic-line div {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.48px;
  color: var(--sub-color);  
}

.underline {
  text-decoration: underline;
  cursor: pointer;
}

.text-box {
  font-size: 20px;
  font-weight: 500;
  line-height: normal;
}

.reference {
  display: flex;
  align-items: center;
}

.reference img {
  width: 4px;
  margin: 0px 10px;
}

.reference div {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.48px;
}

@media screen and (max-width: 1024px) {
  .logo-area img {
    max-width: 100%;
  }
  .container {
    padding: 0 12px;
    width: 90%;
    margin: 0 auto;
  }

  .content{
    padding: 40px 0px;
  }

  h2 {
    font-size: 25px;
  }

  .logo-area{
    max-width: 80%;
    margin: 0 auto;
  }

  .desc {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .desc-content {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .desc-item{
    margin-right: 0px;
  }

  .desc-title {
    margin-bottom: 10px;
  }

  .magic-line {
    display: none;
  }

}