@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: #334353;
}

 .containa {
            padding: 40px;
            border-radius: 20px;
            border: 8px solid #223243;
            box-shadow: -5px -5px 15px rgba(255, 255, 255, 0.1),
                5px 5px 15px rgba(0, 0, 0, 0.35),
                inset -5px -5px 15px rgba(255, 255, 255, 0.1),
                inset 5px 5px 15px rgba(0, 0, 0, 0.35);
            margin-top: 50px;
            background-color: #1c1c1c;
        }

        /* Form container styles */
        .containa .form {
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
            gap: 25px;
        }

        /* Hide inactive forms */
        .containa .form.signup {
            display: none;
        }

        .containa .form h2 {
            color: #ffffff;
            font-weight: 500;
            letter-spacing: 0.1em;
        }

        /* Input styling */
        .inputBox {
            position: relative;
            width: 100%;
        }

        .inputBox input {
            width: 100%;
            padding: 10px;
            background: #f4f4f4;
            border: none;
            outline: none;
            font-size: 1em;
        }

        .inputBox span {
            position: absolute;
            top: 50%;
            left: 10px;
            transform: translateY(-50%);
            color: #666;
            font-size: 1em;
            transition: 0.3s;
        }

        .inputBox input:focus ~ span,
        .inputBox input:valid ~ span {
            top: 0;
            left: 10px;
            font-size: 0.75em;
            color: #333;
        }

        .inputBox i {
            position: absolute;
            right: 10px;
            top: 50%;
            transform: translateY(-50%);
            color: #666;
        }

        .inputBox input[type="submit"] {
            background: #007bff;
            color: #fff;
            border: none;
            cursor: pointer;
        }

        /* Switch form links */
        p {
            margin: 10px 0;
            font-size: 0.9em;
        }

        p a {
            color: #007bff;
            text-decoration: none;
        }

        /* Active form display */
        .containa.signupForm .form.signup {
            display: flex;
        }

        .containa.signupForm .form.signin {
            display: none;
        }

.containa .form h2 {
  color: #ffffff;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.containa .form .inputBox {
  position: relative;
  width: 300px;
}

.containa .form .inputBox input {
  padding: 12px 10px 12px 48px;
  border: none;
  width: 100%;
  background: #223243;
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #fff;
  font-weight: 300;
  border-radius: 25px;
  font-size: 1.5em;
  box-shadow: -5px -5px 15px rgba(255, 255, 255, 0.1),
    5px 5px 15px rgba(0, 0, 0, 0.35);
  transition: 0.5s;
  outline: none;
}

.containa .form .inputBox span {
  position: absolute;
  left: 0;
  padding: 12px 10px 12px 48px;
  pointer-events: none;
  font-size: 1.5em;
  font-weight: 300;
  transition: 0.5s;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.5);
}

.containa .form .inputBox input:valid ~ span,
.containa .form .inputBox input:focus ~ span {
  color: #00df38;
  border: 1px solid #00df29;
  background: #223243;
  transform: translateX(25px) translateY(-7px);
  font-size: 1.5em;
  padding: 0 8px;
  border-radius: 10px;
  letter-spacing: 0.1em;
}

.containa .form .inputBox input:valid,
.containa .form .inputBox input:focus {
  border: 1px solid #00df1e;
}

.containa .form .inputBox i {
  position: absolute;
  top: 15px;
  left: 16px;
  width: 25px;
  padding: 2px 0;
  padding-right: 8px;
  color: #00df30;
  border-right: 1px solid #00df16;
}

.containa .form .inputBox input[type="submit"] {
  background: #00df0f;
  color: #223243;
  padding: 10px 0;
  font-weight: 500;
  cursor: pointer;
  box-shadow: -5px -5px 15px rgba(255, 255, 255, 0.1),
    5px 5px 15px rgba(0, 0, 0, 0.35),
    inset -5px -5px 15px rgba(255, 255, 255, 0.1),
    inset 5px 5px 15px rgba(0, 0, 0, 0.35);
}

.containa .form p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 1.5em;
  font-weight: 300;
}

.containa .form p a {
  font-weight: 500;
  color: #fff;
}

@media(min-width:768px){
  .containa {
    width: 40%;
    padding: 40px;
  }
  .containa .form {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 35px;
  }
  .containa .form h2 {
    font-weight: 600;
  }
  
  .containa .form .inputBox {
    position: relative;
    width: 300px;
  }
  
  .containa .form .inputBox input {
    
    font-weight: 300;
    
    font-size: 1.4em;
    
  }
  
  .containa .form .inputBox span {
   
    font-size: 1.4em;
    
  }
  
  .containa .form .inputBox input:valid ~ span,
  .containa .form .inputBox input:focus ~ span {
   
    font-size: 1.4em;
   
  
  .containa .form .inputBox input[type="submit"] {
    
    font-weight: 600;
   
  }
  
  .containa .form p {
    font-size: 1.4em;
    font-weight: 500;
  }
  
  .containa .form p a {
    font-weight: 500;
  }
}
}