body {
      margin: 0;
      font-family: sans-serif;
      min-height: 100vh;
      background: linear-gradient(135deg, #6a8ad8, #2c3e8a);
      color: #fff;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      padding: 20px;
      box-sizing: border-box;
    }

    .login-container {
      width: 100%;
      max-width: 450px;
      background: rgba(255, 255, 255, 0.98);
      border-radius: 25px;
      box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
      overflow: hidden;
      color: #333;
      transition: all 0.3s ease;
    }

    .login-header {
      background: linear-gradient(135deg, #6a8ad8, #2c3e8a);
      color: #fff;
      padding: 25px 30px;
      text-align: center;
      position: relative;
    }

    .login-header h1 {
      margin: 0;
      font-size: 24px;
      font-weight: bold;
    }

    .login-header p {
      margin: 10px 0 0;
      opacity: 0.9;
      font-size: 14px;
    }

    .login-body {
      padding: 30px;
    }

    .form-group {
      margin-bottom: 25px;
      position: relative;
    }

    .form-group label {
      display: block;
      margin-bottom: 8px;
      font-weight: bold;
      color: #2c3e50;
      font-size: 14px;
    }

    .input-with-icon {
      position: relative;
      display: flex;
      align-items: center;
    }

    .input-with-icon i {
      position: absolute;
      right: 15px;
      color: #6a8ad8;
      font-size: 18px;
      font-style: normal;
      font-weight: bold;
    }

    .form-control {
      width: 100%;
      padding: 14px 50px 14px 20px;
      border: 2px solid #e0e0e0;
      border-radius: 10px;
      font-size: 16px;
      box-sizing: border-box;
      transition: all 0.3s ease;
      background-color: #f8f9fa;
    }

    .form-control:focus {
      outline: none;
      border-color: #6a8ad8;
      box-shadow: 0 0 0 3px rgba(106, 138, 216, 0.2);
      background-color: #fff;
    }

    .form-control::placeholder {
      color: #aaa;
    }

    .login-footer {
      display: flex;
      justify-content: center;
      align-items: center;
      margin-top: 25px;
    }

    .btn {
      padding: 14px 30px;
      border: none;
      border-radius: 10px;
      font-size: 16px;
      font-weight: bold;
      cursor: pointer;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .btn-login {
      background: linear-gradient(135deg, #6a8ad8, #2c3e8a);
      color: white;
      flex: 1;
      max-width: 300px;
    }

    .btn-login:hover {
      transform: translateY(-3px);
      box-shadow: 0 7px 15px rgba(106, 138, 216, 0.4);
    }

    .btn-login:active {
      transform: translateY(-1px);
    }

    .remember-forgot {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 25px;
      font-size: 14px;
    }

    .remember-me {
      display: flex;
      align-items: center;
    }

    .remember-me input {
      margin-left: 8px;
      width: 18px;
      height: 18px;
      accent-color: #6a8ad8;
    }

    .forgot-password {
      color: #6a8ad8;
      text-decoration: none;
      font-weight: bold;
    }

    .forgot-password:hover {
      text-decoration: underline;
    }

    .footer-links {
      text-align: center;
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid #eee;
      font-size: 14px;
    }

    .footer-links a {
      color: #6a8ad8;
      text-decoration: none;
      margin: 0 10px;
    }

    .footer-links a:hover {
      text-decoration: underline;
    }

    .logo {
      text-align: center;
      margin-bottom: 30px;
    }

    .logo-img {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      background: linear-gradient(135deg, #ffffff, #f0f0f0);
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 15px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

    .logo-img span {
      font-size: 40px;
      font-weight: bold;
      background: linear-gradient(135deg, #6a8ad8, #2c3e8a);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .logo h2 {
      color: white;
      margin: 0;
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

    /* موبایل */
    @media (max-width: 768px) {
      .login-container {
        max-width: 100%;
        margin-top: 20px;
      }
      
      .login-body {
        padding: 20px;
      }
      
      .login-footer {
        flex-direction: column;
        gap: 15px;
      }
      
      .btn-login {
        width: 100%;
        max-width: 100%;
      }
      
      .remember-forgot {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
      }
      
      body {
        padding: 15px;
        justify-content: flex-start;
        padding-top: 40px;
      }
      
      .logo {
        margin-bottom: 20px;
      }
      
      .logo-img {
        width: 70px;
        height: 70px;
      }
      
      .logo-img span {
        font-size: 32px;
      }
    }

    /* دسکتاپ */
    @media (min-width: 769px) {
      .login-container {
        margin-top: -60px;
      }
    }

    /* انیمیشن ورود */
    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .login-container {
      animation: fadeIn 0.5s ease-out;
    }

       /* اضافه کردن افکت نور در پشت */
    body::before {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                  radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
      z-index: -1;
      pointer-events: none;
    }