body {
    margin: 0;
    padding: 0;
    background-color: #062b5c;
  }
  
  ul,
  li {
    list-style: none;
    margin-top: 0;
    margin-bottom: 0;
  }
  
  a {
    text-decoration: none;
    color: white;
  }
  
  .box-shadow {
    box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 29px 0px;
  }
  
  .navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #062b5c;
    color: cornsilk;
    padding-top: 1rem;
  }
  
  .navbar_menu {
    display: flex;
    list-style: none;
    padding: 0;
  }
  
  .navbar_menu li {
    padding: 5px 10px;
    font-size: 14px;
    font-weight: bold;
  }
  
  .navbar_menu > li:hover {
    background-color: turquoise;
    border-radius: 5px;
  }
  
  /*로그인 - 새롭게 디자인된 부분*/
  .main-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    background: linear-gradient(135deg, #062b5c 0%, #0a4a8c 50%, #1a6bb8 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    position: relative;
    overflow: hidden;
  }

  .main-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.05"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
  }

  @keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }

  @keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
  }
  
  .login-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 2;
  }
  
  .login-form {
    background: rgba(6, 43, 92, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 25px;
    padding: 50px 40px;
    width: 100%;
    margin-top: 1rem;
    border: 2px solid rgba(30, 204, 187, 0.3);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
    transform: translateY(0);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
  }

  .login-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(30, 204, 187, 0.1), transparent);
    transition: left 0.8s;
  }

  .login-form:hover::before {
    left: 100%;
  }

  .login-form:hover {
    transform: translateY(-5px);
    box-shadow: 0 35px 70px rgba(0, 0, 0, 0.4);
    border-color: rgba(30, 204, 187, 0.6);
  }

  .login-title {
    color: white;
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 35px;
    text-align: center;
    background: linear-gradient(45deg, #ffffff, turquoise, #1ce6cc);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.3);
    letter-spacing: 3px;
    animation: titleGlow 3s ease-in-out infinite alternate;
    position: relative;
  }

  .login-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(45deg, turquoise, #1ce6cc);
    border-radius: 2px;
    animation: underlineExpand 2s ease-in-out infinite;
  }

  @keyframes titleGlow {
    0% { filter: drop-shadow(0 0 5px rgba(30, 204, 187, 0.3)); }
    100% { filter: drop-shadow(0 0 20px rgba(30, 204, 187, 0.6)); }
  }

  @keyframes underlineExpand {
    0%, 100% { width: 60px; }
    50% { width: 100px; }
  }
  
  .login-form img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.2));
    transition: all 0.3s ease;
    margin-bottom: 25px;
  }

  .login-form img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 8px 25px rgba(0, 0, 0, 0.3));
  }
  
  .form-control {
    background-color: rgba(255, 255, 255, 0.95);
    border: 2px solid rgba(30, 204, 187, 0.3);
    color: #1f2152;
    font-size: 1rem;
    border-radius: 15px;
    padding: 15px 20px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    backdrop-filter: blur(10px);
  }

  .form-control:focus {
    border-color: turquoise;
    box-shadow: 0 0 0 4px rgba(30, 204, 187, 0.15);
    outline: none;
    transform: scale(1.02);
    background-color: rgba(255, 255, 255, 1);
  }

  .form-control::placeholder {
    color: #666;
    font-weight: 500;
    transition: all 0.3s ease;
  }

  .form-control:focus::placeholder {
    color: turquoise;
    transform: translateX(10px);
  }
  
  .btn-login {
    background: linear-gradient(45deg, turquoise, #1ce6cc, #00d4aa);
    background-size: 200% 200%;
    border: 2px solid rgba(255, 255, 255, 0.8);
    color: #062b5c;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 4px;
    padding: 15px 35px;
    width: 100%;
    border-radius: 30px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    animation: buttonGlow 3s ease-in-out infinite alternate;
  }

  .btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
  }

  .btn-login:hover::before {
    left: 100%;
  }

  .btn-login:hover {
    background: linear-gradient(45deg, #1ce6cc, #00d4aa, turquoise);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(30, 204, 187, 0.4);
    color: #062b5c;
    letter-spacing: 6px;
    border-color: rgba(255, 255, 255, 1);
  }

  .btn-login:active {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 8px 20px rgba(30, 204, 187, 0.3);
  }

  @keyframes buttonGlow {
    0% { box-shadow: 0 5px 15px rgba(30, 204, 187, 0.3); }
    100% { box-shadow: 0 5px 25px rgba(30, 204, 187, 0.6); }
  }
  
  /*입력폼*/
  .container {
    border-radius: 10px;
    color: #062b5c;
    font-size: 12px;
  }
  
  .form-control,
  .form-select {
    background-color: #fff;
    border: 1px solid #d7dbe3;
    color: #1f2152;
  }
  
  .btn-primary {
    background-color: turquoise;
    border: 2px solid white;
    color: white;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 2px;
    padding: 10px 20px;
    transition: background-color 0.3s;
  }
  
  .btn-primary:hover {
    background-color: turquoise;
    color: #fff;
  }
  
  .form-check-input:checked {
    background-color: turquoise;
    border-color: turquoise;
  }
  
  @media (max-width: 768px) {
    .container {
      padding: 1rem;
    }
    
    .login-form {
      padding: 40px 30px;
      margin: 20px;
    }
    
    .login-title {
      font-size: 2.2rem;
      letter-spacing: 2px;
    }
    
    .btn-login {
      padding: 12px 25px;
      font-size: 1.1rem;
      letter-spacing: 3px;
    }
  }
  
  /* 새로 추가된 스타일 */
  .item-box {
    border-bottom: 1px solid rgb(30, 204, 187);
    padding-bottom: 5px;
    margin-bottom: 15px;
  }
  
  .item-box:last-child {
    border-bottom: none;
  }
  
  .item-box-title {
    display: inline-block;
    background-color: rgb(30, 204, 187);
    color: #ffffff;
    border-radius: 15px;
    padding: 5px 15px;
    font-size: 14px;
    font-weight: bold;
    box-shadow: rgba(0, 0, 0, 0.05) 0px 6px 24px 0px,
      rgba(0, 0, 0, 0.08) 0px 0px 0px 1px;
  }
  
  .item-url {
    color: #fff;
    font-size: 12px;
    background-color: #fff;
    border: 1px solid #d7dbe3;
    color: #1f2152;
    padding: 10px 20px;
    border-radius: 10px;
  }
  
  /* 서브채널 링크 스타일 */
  .btn-sub-channel {
    background-color: turquoise;
    border: 2px solid white;
    color: white;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 1px;
    padding: 8px 16px;
    width: 100%;
    border-radius: 8px;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
  }
  
  .btn-sub-channel:hover {
    background-color: #1ce6cc;
    border-color: #1ce6cc;
    color: #062b5c;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
  
  .btn-sub-channel:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  }
  
  .sub-channel-links {
    margin-bottom: 2rem;
  }
  
  @media (max-width: 768px) {
    .btn-sub-channel {
      font-size: 12px;
      padding: 6px 12px;
    }
  }
  
  .tableNumInfo {
    color: #fff;
  }
  
  .navbar_menu li .logout-icon,
  .navbar_menu li .home-icon {
    font-size: 1.2rem;
    vertical-align: middle;
    color: white;
  }
  
  .navbar_menu li .logout-icon:hover,
  .navbar_menu li .home-icon:hover {
    color: turquoise;
  }
  
  /* 로그인 페이지 추가 애니메이션 */
  .form-control:focus + .form-control {
    animation: inputFocus 0.3s ease-in-out;
  }

  @keyframes inputFocus {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
  }